The arrival of modern times heralded a new dawn in manufacturing techniques by the material of polyethylene terephthalate glycol to mention but a few is known for its flexibility. In other words, these are not only strong but also very malleable, making them desirable for many modern industries. Whether you are constructing tough packaging strategies or enhancing sophisticated 3D printing structures, the use of polyethylene terephthalate glycol (or more commonly Petg) is quite indispensable in high precision applications. The objective of this study is to show how exhausting the properties, benefits, and purposes of Pet pellets are, and why they have translated into even more changes in the manufactural world. This article may be of interest to anyone whether they are working in an office as a manufacturer, an individual creating any designs or other related sectors of the industry, in any case, it will provide valuable information on Petg in the industrial environment.
Understanding PETG Pellets
What are PETG Pellets?
PETG, the short form for Polyethylene Terephthalate Glycol, is a type of thermoplastic polymer which is famous for its transparency, toughness and the range of applications in the industry. These pellets chemically modify the conventional PET by use of glycol in order to avoid crystallization and create material that has less rigidity and more ease in working. With high chemical compatibility, PETG pellets have good toughness, and are easy for heat shaping growing in the thread for the practical application thereby the polymer has such dimension more in the manufacture of plastics such as products and PETG are well known for the applications such as injection molding, extrusion and 3D printing.
Given the quality of PETG granules, packaging, medical devices, information technology, electronics and other industries must avail them. They offer the ideal combination of strength and heat of deformation. This flexibility allows manufacturers to include aesthetics without engineering inaccuracy. Less so, one of the advantages of PETG is that it is easy to form and it accepts post processing with a variety of other techniques which is used to increase its appeal in production leading to high quality end products with increased production volumes.
Properties of PETG Plastic
A polymerized bi-bibulous copolyether which clinches a thermoplastic phase among other similar structures is recognized by the abbreviation PBTG. This grade of polyester has almost perfect character in terms of how it manages optical transmission, blockage against chemicals and resistance to forces. A bright, clear finish makes it a desirable substance in cases where a nice and clean designing is needed, like in the case of shop fit-outs or any other type of enclosure. Due to its excellent thermal resistance to common solvents, the petg material proves to be the best material in almost any laboratory.
Recycling PETG is one of the benefits that are related to PETG. The following plastic can still be used for making another product while bringing little or no change in its mechanical condition making it undoubtedly environmentally friendly. Besides this, PETG is known for retaining its size in different environment settings which might change with time or space due practices involving high temperatures and excessive moisture.
Such numerous high-tech and low-tech aspects of virgin resin in the form of a recycled format called PETG, provides a very sustainable product for almost any sector and space. This is the reason why this plastic is still in high demand among all types of technological manufacturers.
Benefits of Using PETG Resin
Being a copolyester material, PETG possesses a variety of useful properties, making it a proper option for a variety of uses or settings. This is above all its high resistance to local impacts, which enables it to withstand mechanical stresses in various activities. Another reason why so many people use this material is its optical properties – it is very transparent and that is a standard feature of packaging, in medical technology, and in advertising boards.
Also, you can’t overestimate the polymer matte film as it can be easily processed, and molds can be made in any way with the help of PETG and even 3D printing can be used. Once more, PETG features also a strong resistance to chemical degradation which does not further deteriorate even in the presence of acids, alkalis, and other industrial liquids and hence makes it possible for the material to operate even in the most challenging systems of application.
PETG resin is recyclable and can help achieve the global environmental objectives of various industries. It can absorb low moisture and exhibit high dimensional stability in different temperature conditions facilitating reliable performance. This is precisely where the aforementioned advantages comes in handy in the field of medicine, electronics, and also in the production of food and drug sealing material, in order to provide accurate, repeatable and timely package sealing system.
Applications of PETG Pellets in Manufacturing
Common Uses in 3D Printing
In the domain of 3D printing, PETG (Polyethylene Terephthalate Glycol) is quickly turning into the favorite material because of the material’s ability to achieve the just right balance of the fiber strength, the plastic’s ductility among other attributes. Higher temperature resistance is possible with this particular material compared to others such as PLA therefore making it appropriate for producing prototypes and parts that will serve as finished goods. Moreover, PETG shows resistance to chemicals and has low dying-off hence it is recommended for manufacturing packages, parts of any mechanisms and enclosing units that serve as guards or fence posts.
The above property also is important for the dimensional stability of printed parts as good adhesion minimises layer separation and dimensional inaccuracies. These properties make the PETG quite suitable for optical or cosmetic requirements, since e.g. lighting diffusers, medical structural parts may not have any lines on them. Last but definitely not least, its properties as well as general qualities even make it possible to print for instance bespoke kitchen ware and food containers and adhere to hygiene standards when consumer products are printed. In conclusion, PETG is an innovating 3D printing decisive because apart from being versatile, easy to work with, highly functional, and its performance particularly, adapting well to all the relevant aspects one can think of.
Role in Packaging Solutions
With the perfect blend of physico-chemical properties, safe use for food applications has driven the use of PET pros and consumer products. Provided substantially more support and were the ideal protective solution in relation to shock. It is worth noting that high level of cleanliness forms a structure for food processor’s packaging requirements. It is very close to the required high aesthetic value for packaging and finishes when they are often used either as display or consumer items in packaging design. It obviates the ingress of moisture and any other materials and hence any damage to the contents of the package, not least in environments where the relative humidity is assumed to be altered. This is further complemented by the ability of forming in temperature which means that shapes can be made quickly and accurately for specific packaging in various sectors. In sum, these prospects of the PEMGA cover all examples to where major importance is conferred on the replacement of specialized packaging material over the traditional or suboptimal alternatives.
Applications in Medical Devices
Material PETG is one type of plastic which has a reputation of being a go-to plastic in the manufacture of medical equipment. This is because it has an extraordinary resistance to various chemicals, is incredibly tough as well as very clear as a substance. Its ability to resistedly bond to tissues in the body makes it extremely valuable for the manufacture of various products such as fluid transfer, diagnostic equipment, and even for the templates in surgical procedures. In addition, its tackiness feature is excellent for medical applications, for instance, the sterilization processes which involve gamma rays or affects the use of Ethylene Oxide gas do not compromise the quality and the visibility of the material.
Moreover, the polymer’s ease of thermoforming and high dimensional stability renders it perfect for the production of complex shapes and structures production and precision assemblage parts. This adaptability ensures that the PETG material can be applied to both disposable and durable designs of medical accessories. The use of PETG in the manufacture of safety shielding devices, for instance, splash guards, as well as housings of various delicate tools inside the hospital shows the capability of maintaining clean and secure medical work environments within the facility. A combination of such characteristics has further proven PETG to be irreplaceable within the current medical devices development sphere.
Processing and Extrusion of PETG Pellets
Overview of the Extrusion Process
It starts with processing the raw ingredient which is PETG resins (polyethylene terephthalate copolymer glycol). The first thing you do to PETG resin is put it in the hopper system and extrude it into the extruder. The extruder has a heated barrel and a rotating screw, which melts the pellets uniformly to form a homogeneous melt. The process involves controlling temperatures in different zones of the barrel. Normally, temperatures in the zones border ranging from 230 degrees Celsius to 270 degrees Celsius depending on the particular grade of PETG.
After the resin is fully melted its direction of flow is controlled by using a die which in case of a sheet, tube, or film; defines its cross-section. The material that has been extruded then undergoes a cooling step during which water baths, air knives, or chilled rollers are used to enhance dimensional stability and to promote solidification. Failure to keep the cooling speed well monitored would lead to inconsistency in the final appearance of the PETG material regarding their transparency, the formation of the surface as well as the mechanical properties.
The processes of extrusion have become contemporary because micro elements within the screws can be fully defined as well as because new additional equipment has been used that is the grid. This latest amplified viscosities together with modern additives have rendered the processes quite optimal and hence more PETA can be extruded making the same offers which makes them useful in medical, engineering and consumer product fields among other areas. There should also be a very attentive oversight of the operation and especially maintenance of extrusion equipment for smooth operation with predictable results on the quality of the material being worked on.
Best Practices for Processing PETG
Control of the warmth: It is important to provide accurate control of the temperature in the heating zones while working on the PETG to ensure the best results. Extreme height of the temperature can lead to degradation of the material, and insufficient heat may lead to troubles in the flow of the melt and appearance of irregularities on the part. Generally, the processing temperatures demonstrate the range of 230-270 degrees Celsius, although this may be altered according to the type and usage of the granules.
Material prep: In case where further moisture content would be placed into the resin, it should be dried avoiding moisture as any unfrozen water would be flash cooked and would bind with the polymer. The powder shall be pre-dried in an oven at a temperature of 65 oC to 75 oC for four to six hours, but manufacturers should be consulted for any variations.
Create Screw Design : The use of a tighter and non-stepped compression angle screw can lead to uniform shearing and prevent the material from being overly strained. It is also crucial that the screw is set to an optimum velocity which would blend the ingredients during mixing without retaining the vessel contents for too long leading to their degradation.
Icing The Problem : Efficient workshops leading the edge of work such as Water Bath system or Chilled Roller in lowering the surface of the temperature is important for restraints on residual stresses and shaped dimensions. It can also be prevented if there’s such an even slow cooling down for the constituted articles and if stresses are non existent in the product.
After Processing : 3D Printing and Processing the PETG material will provide the engineers with a standard material that will help reduce costs. It will also help reduce the time it will take to design parts that will have to be machined and finished. Even when re-heating polymers and shaping them without allowing the material to cool down slowly, stress is not and still should not be harmful.
Environmental Aspects: Clean production environment should be emphasized to prevent contamination of dust or moisture. Controlled area for the cleanliness of parts may also be necessary especially in hospitals and other facilities when the components need to remain clean and sterile.
When following the standard professional protocols strictly, the producers are able to maximize the characteristics of durability, resistance to external causes and beauty of the PETG, thus matching its requirements much more effectively to the purpose of its application.
Filabot: Innovations in Filament Production
Following state-of-the-art design and the use of top-notch materials enable Filabot-Atek to provide advanced operational filament solutions to the contemporary market. Any sector, which demands a precise and pliable filament fabrication guideline, will find Filabot an appealing service provider. These include, extrusion systems, which are utilized for the working of different materials like PLA, ABS, PETG among others, and the accuracy and uniformity they present in their operation are superb.
An important feature is that the filament creation process is automated and the adjustable speed and temperature settings are present which help to modify the filament characteristics to best suit the project at hand. Such feature is essential to the scientific institutions, prototype workshops and small series manufacturers because the relatively low cost of extending the custom filament capabilities would allow them to use their resources more efficiently. In addition, Filabot adds to its capabilities manufacturing of granulated materials and recycling facilities which makes it possible for waste plastics to be turned into filament and supplied for printing, an approach that ensures economy in the use of additive technology.
Filabot, as a committed business that embraces innovation within itself, manages to come up with solid and reliable equipment that is expandable, works with a great variety of materials and is also eco-friendly, thus offering a trustworthy solution in the area of 3D printing.
Performance Evaluation of PETG Pellets
Strength and Durability Comparisons
Bismuth Oxide Whiskers (Bi2O3), on the other hand, are less versatile in nature and face a number of limitations in their use in industry. Despite its good electrical conductivity, research has shown that it is only minimally semiconductive and possesses no hysteresis effects at room temperature. Moreover, the critical current is very low, considered to be of the order of nano amps.
When put into a broad operational context, it is worth noting that, entirely because of its particular heat resistance properties, PETG can still hold up at temperatures of slightly above eighty degree Celsius before going soft as it is so often called (the temperature of heat distortion). This proves its usefulness under practical applications such as applications that involve the use of relatively underqualified heat processing and that it can still stand as rigid equipment. PETG does best in numerous environments high on chemicals as these include but are in no way limited to the more primary uses such as an acid, an alkali, or an oil.
All these traits of PETG come together to make it a compound with which components can be manufactured that promote the qualities of mechanical strength and service life to a higher extent, in the field of high-performance 3D printing and engineering designs in general.
Recyclability and Environmental Impact
As PETG belongs to thermoplastic group, it has properties making it recyclable, which essentially means that It can be melted down and then used again with less reduction in its properties. Infact cubes can be molded from plastic without any deformation. Still, the material-dependent recycling steadily depend on the capacity of the regional recycling plants to process PETG plastic. Here, not all deposits are well equipped to manage it. Whereas in the industrial setup, PETG’s chemical durability and slow deterioration are considered beneficial, its chronic impact on the environment is promoted if appropriate procedures are not established for the disposal of the material.
In mitigation of PETG’s overall, environmental negative effects, it is sought to encourage the improvement of its recovery and recycling. Improvement by these manufacturers is being form the means of facilitating recuperative chemical drug TECR which would breakdown coPolymers of Acetylene and low Aliphatic Ester Gs into its constituent monomer units allowing for new material production without the need for any additional petroleum resource inputs. In addition the industries interests include searching for sustainable alternate sources that are not detrimental to the environment in the place of pet cradle to gate issues. We still have a long way to go in point of creating a truly sustainable society. When speaking about the materials practical use it is necessary to focus on the care of the environment and the development of waste management and eco-friendly materials.
Cost-Effectiveness of Bulk Purchases
Prices of raw materials or goods can be reduced greatly by bulk buying because of reduction in unit costs. Many vendors adopt a bulk discount policy as it helps very essentially in the increase in costs relating to administration and packaging and the costs relating to transporting goods within the organization are divided over a greater number of goods. In doing so, this also enhances how operations within the business are implemented and more so within the supply chain management since there is a reduced need to reorder and reship goods. ‘’Thus weighted’’. In other sectors that of production or trade where raw material needs are immense, buying explainedly is most suitable owing to efficient inventory and pricing policy prospects. However, companies should not overlook the potential spoilage biases and the storing capabilities before trying to acquire in excess for this result to be in line with their business and profit objectives. In order to maximize profits and yet not strain available resources is, through thorough planning coupled with accurate demand trends as change is inevitable.
Future Trends in PETG and Plastic Resin Pellets
Innovations in PETG Recycling
Considering that I hunt down new headlines in PETG recycling, I notice how transformational the innovative applications lately have been on improving the sustainability and efficiency of the plastics industry. PETG is remarkable for its long lasting nature and visibility yet it is always too difficult to recycle this proficiently due to its makeup which is highly specific for a certain recycling process. But these new methods are been researched and developed by clashing the old and the new together. It is improved depolymerization that allows splitting the PETG polymer into its monomers the same as they were received. The next step will be the preparation of these monomers into fresh high-quality products which can be reused again. These advances guarantee that polyethylene terephthalate glycol fully retains its old characteristics namely its usability for various medical and packaging purposes and for 3D printing.
Besides, it should be notedthat Plastic recycing is highy advanced today due ot the fact that Sortation technology such as Near Infra red lazer and Artificial intelligence is tremendously assisting the recycling process of PETG or I guess in general all the plastics even further. However, on the same note, these advances allow better separation of PETG from other plastic materials found in conjunction which makes this process indispensable as it is essential for maintaining the sanitation of recycled products and costs necessary due to inferior sanitation due to foreign substances. Many other companies in fact are looking at approaches that are not quite popular in this case; such are the potentials of chemical recycling, asa method complementing mechanical recycling to its maximum extent and which can be used to also widen the scope within which hazardous plastics can be recycled.
Regarding these novel uses of PETG, efforts from alternative industries, efforts involving the government, and efforts from the academia are important as well. As the economics of recycling started to win with scalable technologies, such as modular recycling machines, it stopped being that pressing whether it is beneficial for the environment to recycle PETG. Albeit there are certain obstacles present which include the issue of their custom adoption and low price, these innovations present a move towards the implement if not full realization of a closed consumption cycle concerning PETG and the available restructured plastic resins. The resolution of the concern on whether petg based raw materials should be totally recycled depends not only on the just claimed future trends but also on the willingness of the society to recycle more.
Emerging Applications in Various Industries
The polyethylene terephthalate glycol-modified (PETG) is gaining immense popularity in different sectors owing to its unique advantages that are unfound in other polymers such as resistance to chemicals, strength and optical clarity. Based on the literature that I read, PETG appears to be a material that is sought after in such areas as in medical, consumer goods, electronics and the production environment. There are now relatively simple and cheap ways of altering medical and scientific devices if those devices were purely made from stainless steel. Indeed, PETG is one of the only materials used in the development of whole new reassurance devices for dangerous and chemical applications that must be sterilized. This is also very helpful in complying with the stringent regulations imposed on any medical application.
Furthermore, not only are the consumer products and electronics now using colours, the PETG material in this aspect is developing on – with about effective production of many innovative goods. This material has also found its way to the 3D printing due to the easily formable nature of the plastic and finish that aims to fulfill the requirements prototyping and final product manufacturing. The electronic acceptance of PETG is well expressed since it makes thin yet strong and sneezy electronics casings and what is more; it also covers them with protective films and wats not. Also, numerous consumers focused, organizations are finding a solution to plastic bottles problems because advances in PET material development, particularly into green design packaging is making perfect sense which serves the purpose of satisfy sustainability objectives to the fullest since such arrangements are perfectly decaying.
To sum up, PETG is one of the most widely used materials in manufacturing industries for thermoforming machine applications, offering the capability of producing industrial parts tailored to specific requirements characterised by a mix of high strength and extreme flexibility. Its clear properties mean more applications in usage as people can identify even constructions and visual merchandising with features of petg films. Such like petg films lead to the advent of some pretty “space-age” applications of the plastic. This factors in PET’s use in transforming the industrial complexities of design, along with the manufacturing of components, and enhancing these with sustainability aspects. It is easily imaginable that PETG, subject to increased efforts through recycling of PETG incorporates, will work more powerfully in the forthcoming years.
Market Trends and Predictions for PETG Pellets
There is currently a presentation of PET pellets and products. However, one of the industries that is expected to show a steady increase in PETG usage is manufacturing. PETG is mainly used in the manufacturing of bottles and medical containers due to its very high resistance to chemicals and other benefits. Such factors have outlined the growth of use effect product such as packaging where crises scale has seen the acceptance of PETG for need of food packaging and pharmaceutical packaging in the present functional design. Besides, the topic of eco-friendly consumption has become more relevant, which has added to the demand for PETG as a recyclable polymer that can find applications where traditional plastics are not acceptable.
The demand for PETG will only continue to grow due to the improvement of the recycling methods and focus on relentless recycling. Industries have begun to spend on futures such as closed-loop systems to recover and reprocess PETG added into the polymers which will play a massive role in decreasing the amount of unnecessary disposal thus improving the waste management in the country. At the same time the use of 3D printing is in high demand, therefore the use of PETG in form of resins has grown positively since it can be manipulated to create complex structures when still retaining its strength and flexibility which most industries use for their prototype and the end products. Moreover, the rising trends favoring utilization of PETG for a range of applications have strengthened the put post already bolstered growth trends of the PETG market. Some researchers calculate such parameters as the compound annual growth rate (CAGR) of the market and more often than not it is double or even triple the industry average, due to innovation and the availability of new applications over the next 10 years.
Even though PETG pellets are currently experiencing some difficulties such as varying costs of raw materials and substitutable qualities with other plastics, the positivity of the market remains. Efforts are being made in recycling through investment and sustainability has become one of the regulatory imperatives that is bound to change the PETG for good. The bottle neck systems and all other ancillary devices are made from PETG and their role is expected to be very core in the years to follow.
Reference Sources
Characterizing Shape Memory and Mechanical Properties of PETG-HDPE Blends – Harvard ADS.
Closed Loop Recycling of PETG in Fused Granule Fabrication – University of Texas Repository.
Polymer Materials Via Melt Based 3D Printing – Clemson University.
3D Printing in Architecture Education: Revolutionizing Design and Innovation – CUNY Pressbooks.
Closing the Loop on 3D Printing – UCSF Library.
Frequently Asked Questions (FAQs)
Define «Clear pellets of PETG and pellets of plastic, PET – Product Description’?
Let’s break it down a little further. Clear pellets of PETG are basically nothing but material of PETG packed in small beads aiming to remelt them and use again; such plastic pellets do have a constant flow rate and hence suitable for extrusion and molding. The good thing about this product is that it serves purpose of high degree of optical transparency as well as toughness that amorphous resins do not possess most of the time. By and large, such data as melt temperature, recommended dryer temperature and water tolerance can be provided by a manufacturing company and should be checked by users before fabrication. Most sell fact sheets for the items sold to enable the clients to assess viscosity, tensile strength properties and, in some cases, process temperatures. It is not surprising that people at Filabot tend to practice most of the operations from the referenced materials when extruding pellets into a wire Such as PETG or other types.
What are the steps that are taken during the process of meandering PETG resin into Filabot filament, and what is the process like?
The process of extrusion PETG resin requires melting, mixing, and compounding of the resin pellets in a heated barrel, and then it is forced through a die in a molten state to make a fiber, such a filament, or a profile. For example, small extrusion systems such as the Filabot involve the regulation of screw rate as well as multizone temperature to ensure uniform diameters of the filaments during filament drawing. The process of line-centered extrusion also requires calibration and cooling in order to maintain the shape of the round tubes. In order to improve its transparency and mechanical properties, PETG pellets need to be dried properly before the resins are subsequently extrusion coated. The melt pressure and the draw speed, for instance, are continually adjusted to resist deviation from the new set point that signals a new thermal history that may result in lower speeds or other problems. Post-extrusion treatments such as relaxation or controlled cooling can greatly improve the dimensional stability and remove internal stresses in the products.
What are the reviews of the performance and the usage of PETG pellets in 3D printing?
The PETG pellets are generally well rated for maintaining a balance between impact resistance, practicality, and chemical resistance in comparison to PLA and ABS, especially so because this feature is in the production of consumer ware and prototypes. In practical terms, PETG is suitable for the applications of clear and relatively strong parts like guards, containers, and mechanical parts that may be exposed to moisture or excessive humidity. There exists a common observation concerning the beneficial adhesion between layers and minute warping in the course of a print, which aids in set up and minimizes corrective actions such as raft structures. However, the unplugged filament is a problem especially when retraction and heat set points are exceeded. Absolute consistency in online shipping of such dimensions is critical in achieving professional productivity alongside a stable quality product. A great number of printers’ reports exist describing PETG as a user-friendly material, compared to nylons, and a huge improvement in toughness than the one provided by the sold as one sample PLA.
Can I buy PETG pellets in bulk to facilitate transportation for extensive extrusion activities?
Indeed, Yes, PETG pellets are available in wholesale quantities applicable for large-scale extrusion and injection moulding, and most of the manufacturers do offer bulk carryout services. While order specifications cover such issues as payment of production costs, royalties, and after sales services, it is important to ensure that when you make a bulk shipment, the consignment is also packaged (e.g., moisture-barrier bags, totes) appropriately since otherwise the product may be compromised mainly when shipped to humid regions. When conducting business with suppliers, it is likely that they will dispatch the products with the appropriate shipping tariffs and documents. With the intention to fund the shipment, it may required to use the shipping documentation that the suppliers provide to you. You ought to also inquire about the most reasonable amount of product you have to purchase and the time frame within which the material requires to be worn out for purposes of ordering the goods ahead of time of the. When shipping to international destination, inquire from the supplier whether freight forwarding is provided or you are responsible for supplying the goods to your country’s airport. In a majority of cases, it is possible that trade certificates provided by the supplier stipulate the kind of data that can be provided with relation to each batch of goods.
What is the difference between printing with PETG and other types of plastic materials in 3D?
As far as 3D printing is concerned, PETG falls in the middle range because it is hard and resistant to heat beyond the limits of PLA while being pleasant to print like ABS because many different adhesive plastic properties have been mixed. It is less cumbersome to process than nylons and polycarbonates resin and has lower moisture adsorption helping extrusion but also being classified as a low-temperature polymer. For design application, low fragrance, clear parts of PETG are more cost-effective options for adhesion of the layered structure. Many businesses use PETG for the products which are close to the user since it provides the best entails for functional prototypes with stipulated mechanical characteristics and improved color properties. Maintenance of the technology for PETG includes specific grains injector and thread-melding based devices in delivering it from idea to the final product design of short production activities.
What is the procedure for checking the quality of extrusion of PETG pellets?
Quality checking for the production of PETG pellets often includes the checking of melt flow rates, density, moisture in the material, as well as the mechanical strength like tensile stress, elongation as component often tests carried out on the resin to check that it matches the required material specifications. Regarding the extrusion process, it is common for the operating parameters to be monitored using the melt temperature, pressure, speed and outlet size, in order to prevent the formation of undesired products such as gel, voids as well as excessive polymer degradation. In most cases, the suppliers are the ones doing the batch tests ordered and they provide laboratories analyses reports such as certificates of quality; while extrusion takes place in the company, it takes place in the case with samples taken for various testing purposes. A quality control check that cannot afford to omit is a visual one which entails color, the purity and the pellet clarity especially when a clear application is involved. Having statistical process control in place during production also helps maintain the performance of the process in the long-run and decreases the amount of wasted material.
What is the best place to keep PETG pellets clear and keep its information?
Keeping the pellets in a cool and dry area and this time placing it in a sealed, air tight, moisture barrier bags or any other preferable containers was the best method to retain clarity and to prevent the hydrolytic degradation that clouds the material. Such danger of heluthery or hydrolytic attack, not properly dealt with, may result in the slow clouding of the finished product. Exposure to direct sunlight and temperature changes should be quite limited particularly if one wants to avoid oxidation and color changes in the pellets; it is a good idea to put an appropriate lable on each container showing the material data, manufacturing lot number, drying history, and resin supplier information to avoid any mix-ups during handling. Also, should the pellets also take up moisture, removal from the machines and drying at the appropriate temperature for the corresponding time prior to processing will help in restoring good extrusion properties and clarity. For purposes of storage of material in drums for a longer time or filled IBCs, desiccant air treatment systems or nitrogen sparging in the head space can again be employed to further enhance the quality of the resin. Maintaining records of stock levels and inventory turns also helps mitigate the risk of utilizing sun degraded material during processing thereby preserving the functional attributes of the product.
