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How Recycled ABS Plastic Pellets Are Revolutionizing Sustainable Product Development

recycled abs plastic pellets

Recycled ABS pellets change the way how material use and recycling is considered or waste management, in this sense they are popular with new forms of sustainable technologies. Acrylonitrile Butadiene Styrene—or ABS as it is often called—is a highly flexible, high-performance polymer known for enhancing the prospects of being reused due to its special robustness levels and durability. Thanks to this leap, it becomes feasible for participants of any type to develop rather environmentally friendly products without, however, harming the quality of products they produce in the world today. The present piece of writing is aimed to mostly address the transformation of sustainable product utilizing recycled abs ppellets. In terms of how the materials are produced and used—recycled and uses case scenarios, we explore the contemporary significance of the materials in the fair economy and ethical production principles.

Understanding Recycled ABS Plastic Pellets

Understanding Recycled ABS Plastic Pellets

What Are ABS Pellets and Their Composition?

Acrylonitrile Butadiene Styrene (ABS) pellets belong to the engineering grade of thermoplastic polymers and are mainly known for their strength, abrasion resistance and the variety of their use. These are the basic methyl methacrylate modified polybutadiene resin ester formulations to which three main monomers – acrylonitrile, butadiene and styrene – bind, these monomers each defining specific properties of that material. Specifically acrylonitrile – binds a resistance towards chemicals and high temperatures in the polymer, while butadiene – improves the notch toughness and the resistance of impact on low temperature conditions, and styrene – ensures an easiness of molding and maintaining the shape of the composite parts. These modifiers create a tough solid material that is durable. This is advantageous for both industries such as automotive, electronics, everyday items and others. Recycled ABS pellets, on the other hand, are prepared from the post-consumer or post-industrial waste of ABS, and they have significant amounts of the original material’s properties retained but have the benefit that they lessen the amount of virgin plastic resins used hence encouraging the sustainability. This juxtaposition of economic advantage and environmental preservation ensures that the reintroduction of a circular process remains a constituent of innovative industrial practices and their attainment of more sustainable product mix.

The Process of Recycling ABS Plastic

The recycling of ABS plastic is a complex process that is aimed at preserving the functional properties of the material while protecting the environment. The starting point of the process is ABS waste retrieval and separation. Such wastes come from consumer items like what can be the casing of a TV or accidental leftover from the factory that manufactures such items, amongst others. At this stage, modern approaches of infrared and higher density separation are applied which are capable of ensuring the yield of pure ABS by removing both contaminates from it and incompatible polymers.

Once that is completed, the abs waste is, for purposes of quality enhancement, treated following a given procedure which will commonly include several wet and chemical methods to remove oil, dust and unwanted substances. The resultant plastic is then broken down into small sized pieces or flakes in readiness for re-moulding and re-use. These thin pieces are then heated and molten down to form pellets, the most widely used reusable form for various purposes.

ABS recycling is green and aims to ensure that the polymer composite remains intact after recycling. Restabilization additives compound can be used for this purpose to improve the properties of the material that are restored or enhanced with less specific levels of additiOns and distantly. This adds out to technology use efficiency when the polymer is put on the secondary market in the inenergetic or cyclic form. To that end, the properties that define the requirements of the industrially processed abs address durability as well as recyclable resource features of the polymer. Recycled ABS materials serve their purposes up to standard others of which: automotive, consumer electronics, electric appliances and others oft regarded abroad.

Benefits of Using Recycled ABS Pellets

Acrylonitrile Butadiene Styrene (ABS) pellets obtained from recycling sources avail a variety of advantages that answer to concerns of the environment as well as cost-effectiveness. Reutilizing the scrap and offcuts from the material reformation eliminates the need of primary raw material, and thus reduces the usage of the high energy-costing plastics. On top of that, there is also an evidence that the processing of recycled ABS materials does not require as much energy as the production from virgin resins.

For regular processing, recycled ABS pellets possess the same material characteristics as those of virgin resins including, strength, resistance to heat, and resistance to sudden shock. These properties are vital for recycled ABS to meet regulatory requirements and be used in: interior linings of automobile fittings, the outer casing of electrical and household products amongst others.

Additionally, the use of reclaimed ABS chips will assist in cost reduction. Buying back some parts of the raw materials in a primarily non-virgin state might alleviate raw material costs, especially with the surging prices of fossil fuel based fresh plastics. In the end, using reconditioned ABS sheets will also please the conditions of non conformance with the environmental sustainability practices and green products that are admired by the customers. It will further increase company image for markets that become increasingly concerned with environmental preservation.

Applications of Recycled ABS Plastic

Applications of Recycled ABS Plastic

Industries Utilizing Recycled ABS Pellets

The regenerated ABS is usually used in many different industrial fields due to its unique adaptability, high performance and competitive price. The automobile industry is a typical example, where recycled ABS is applied in the manufacture of several interior components like the car dashboard, door panels among other trimmings. This minimizes the cost of raw materials and is consistent with the ecological policies that accompany the production of cars.

The reuse of electronic and electric products like the use of recycled ABS in cases of consumer electronics, TVs, radios, computers is also important. It exhibits such a functionality while contributing to the reduced environmental damage due to e-waste around the globe.

In addition to this, the construction industry enhances the use of recycled ABS for products such as fittings, panels, structural components etc., on account of its ability to resist all kinds of pressure and even different environmental conditions. At the same time, the healthcare and medical industries has started applying aesthetic features like recycles ABS on devices for health care making sure that the devices are of high quality and also meet the requirements of the typical medical industry.

For every sector, the use of recycled ABS beads, allows for the manufacturing of solutions, which are sustainable, long lasting and cover costs in the changing scenario of economics and environment. This increasing usage across markets.

Case Studies: Successful Products Made from Recycled ABS

Enhanced grade recycled ABS is turning out to be quite useful in many industrial applications to produce quality products. One common example is the use of recycled ABS in manufacturing superior quality electronics equipment covering shell for items like laptops, mobile phones, and video game devices that withstand harsh surface impact along with heat resistance. Furthermore, in similar effect, the car sector applies recycled ABS in the product ion of both colorful and black/debugged elements of a car including the door trimming, the panel board, and, at times, the outer parts enjoying the positives of the substance such as stiffness and perfect shaping.

The maneuver happening again successfully up market is in practical, durable consumer merchandise like briefcases, cooking tools, and toys which still have a great pressure impact or compression load resistance qualities. Moreover, liking the use of ABS 3D printer filament, the material which is environmentally friendly and has the highest recycling levels there is less transformation loss that turns this whole industry positively highly effective. The purpose of this context is to illustrate how the material is useful in different fields, encouraging progressive and environmentally friendly use of products.

Future Applications and Innovations in Recycled ABS

The promise held by recycled ABS (Acrylonitrile Butadiene Styrene) is the future. This will be possible at the pace of implementation of recent advances in technology and manufacturing. The utilisation of recycled ABS in conventional processes for specialized applications such as aerospace and automotive has proved effective and profitable. This however, paves the way for economical solutions thanks to other ABS materials.

Even so, the perfection of chemical process into drastics environmentally sound and innovative way of upcycling waste is expected to ensure higher quality and standardization of the recycled ABS. This perfection of the material motivates one to expect its application in other demanding areas, such as medical, consumer equipment, and robotic industries. Another development worthy of note and already there is the one concerning the production of fillers based on a composite of recycled ABS and fillers, which include fibers, nanofillers, and biobased additives therefore increasing the robustness of the material that possesses high strength necessary to meet the tough demands of the intended use such as the high stress on the material due to structural work or protection.

This is true because with the new focus of the industries to the circular economic practices, closed-loop production systems are being encouraged thereby ensuring that recycled ABS will be crucial as an intermediate or end product for the production of other goods. In essence, the practice of reusing all discarded disposables in the course of producing new products can also be accomplished on the condition that new absorptive materials are not wasted. This serves as a strong argument for the growth of ABS in the market and its expansionibilities.

Sustainability and Environmental Impact

Sustainability and Environmental Impact

Comparing Recycled ABS to Virgin Plastics

According to the writer, two – recycled ABS (Acrylonitrile Butadiene Styrene) and virgin ABS are poles apart as far as the huge effect on the environment, characteristics of material used and the manner in which it is produced. It is clear that virgin ABS is an end product of petrochemicals and therefore in making it there are natural resources whose extraction is extensive and it leads to much generation of Co2. On the other hand, the origin of recycled ABS is mostly waste, thus reducing the need to produce it from scratch and reducing industrial energy levels.

As far as environmental impacts are concerned, the recycled ABS carbon emissions are way lower compared to the virgin ABS. Life cycle assessments suggest that introducing recycled ABS can even reduce CO₂ emissions by almost 50% relative to what virgin ABS entails depending on the type of recycling. In addition, using recycled ABS is an additional bonus in the sense that it will underpin the accessed global plan of waste control by reducing plastic waste piling up in landfills and in the ocean.

Even though various materials may have certain positive aspects it is worth noting that when using unprocessed ABS materials with a more regulated material system such as Virgin ABS, a higher tensile and Young’s modulus can be achieved in the processed materials due to the unregulated and unsorted repurposed nature of original material during processing. Even if not as good in some mechanical properties as virgin ABS, recycled ABS can be made to meet specific industry criteria with sophisticated fillers and mixing of processes.

Recycled ABS is an excellent choice for reducing production costs thanks to the ever fluctuating prices of production materials and the need for an ecofriendly economic circle to be put in place. The companies that use recycled ABS also get increased sustainability as an advantage and conform to the requirements towards environmental practices. This means that virgin ABS is still utilized in those PVC Windows applications which require fine tolerance on dimensions, surface finishes and is expected to maintain some working life but, in situations where less demand for these future properties will be made, recycled ABS is an ideal choice that helps in meeting the sustainability criteria without compromising the needed characteristics.

Reducing Carbon Footprint with Recycled Materials

The future of industrial development depends greatly on the application of recycled materials in various industries. In the re- use of materials such as metals, plastics or composites which already exist, the energy use is substantially lower than typically necessary when these materials are made from completely new and non- withstanding sources. Recycling aluminum, for example, retains about 95% of the energy that would have been used in the production of primary aluminum, whereas certain recycled plastics like polyethylene terephthalate (PET) use between 30-60% of the energy of virgin plastic products. Likewise, another significant benefit from the use of waste products in products is the actual reduction of the greenhouse effects of climate change by decreasing the amount of energy consumed in the processes of extraction, transportation, and processing in several steps of the supply chain These steps are usually considered to be quite energy intensive. It is important as the use of the materials also allows industries to utilize advanced manufacturing or processing methods that result in the production of secondary or recovered materials with performance and durability characteristics that are as good as the original virgin materials. However, with all these, it is critical to point the use of recycled materials also able to attain both the planetary protection milestones and the competitiveness regarding the use in form and quality.

The Role of Recycled Pellets in Circular Economy

The use of recycled pallets in the designing of a circular economy is an absolute necessity because it helps in the production of additional products whilst limiting the amount of dependence on new resources. The pellets are mainly acquired from other used materials, especially for waste from consumed goods, and even rejected items that come out of production processes. It is a waste material that is primarily concentrated after consumer use and another chunk of it is from post production processes. These pallets are transformed into evenly prepared elongated gags of raw materials that come very handy in a variety of applications like food packaging, aerospace and automotive manufacturing, etc. However, other industries try to eliminate purchase of nonessential resources at all cost and incorporate their own recycled pellets to further improve the economic value extracted in each conversion activity.

The last decade and a half have seen drastic improvements in pellet manufacturing. Better production methods, just to brag a little, currently ensure that those very same recycled pellets can almost attain almost the same strength and resistance to temperature change as their newer versions. Furthermore, automatic systems such as recycling and waste management have also been introduced enhancing the sorting and elimination of defilements prior to the purposeful utilization of resulting components in the market products.

Yet, if we expand the scale of concern a little bit, the employment of the recycled pellets will be consistent with other measures of the so-called circular economy. There, for instance, certain ministries have formulated minimum limits for the use of recycled inputs in specific products, thus pressing many industries to incorporate virgin recycled materials. Such a flexible state policy as reflection of market demands can compete with innovations real domestic prices inflation, because recycling of garbage is waste managed in the course of numerous processes and due to the demand for resources, in order to cater made products and thus there end goals.

Quality and Performance of Recycled ABS Pellets

Quality and Performance of Recycled ABS Pellets

High-Quality Standards for Recycled ABS Plastic

In order to ensure that recycled ABS (Acrylonitrile Butadiene Styrene) plastic materials meet the highest standards, a lot of testing procedures and internationally accepted regulations have to be observed. This is because the recycled ABS pellets should also feature uniform mechanical characteristics such as tensile strength, resistance to impact and heat so as to out do or equal the useful criteria of various applications. The practical processes in raising the material cleanliness level, such as the use of color separation and cleaning processes and other not very sophisticated technologies like near-infrared (NIR) spectroscopy or even chemical washing, are seen as being crucial so that the unnecessary components are cleared thus enabling the whole system to support its performance.

Moreover, meeting the set requirement of internationally recognized benchmarks; for example, in this case ISO 19062 for use of recycled plastic materials, gives such a measure of assurance regarding the quality of the products and their fit for the purpose of manufacturing. There are more advanced waste management techniques such as recycling goods with only closed loop systems and use of highly efficient compatibilizers which improve the mechanical properties as well as cosmetic qualities of modified polypropylene, making it almost an even choice when compared to virgin materials in forging end products that fall under the high-end range that include automobile parts, advance electronics and high end consumer products. Higher standards in part from recycled ABS such that, it sustains optimal use and is efficient, these in quality it consequently becomes a leading aspect that has an improved response.

Testing and Certification of Recycled ABS Products

The functionality of the given ABS resin which was recycled has a very high demand of testing and compliance inspection of the industry and the ultimate usage. Recycled ABS involve also torsion, strength and the melting resistance to destruction tests, to check its appropriateness to a particular function. To investigate these properties at a further level, the sample undergoes tests using considerable advanced equipment including Fourier Transform Infrared (ONA SPECTROSCOPY) and Differential Scanning Calorimetry (CD C).

Conversely, the active engagement of key stakeholders in sustainability activities assists when are in the means of creating more opportunities and such performance in communication behavior increases the adoption effectiveness and efficiency of subsequently reported goals and objectives. Corporate citizenship plays a key role in sustainability economics compared to conventional economics where social responsibilities is a plus or a phenomenon. Social media provides an enhanced platform for such integrated engagement and collaboration with the stakeholders and the community as both change adopters and agents of change. Engage With Stakeholders Call Centers hold potential for solid realization of user involvement in quality assurance when considering the benefit and usefulness of the system.

Challenges in Ensuring Quality of Recycled Pellets

Ensuring the quality of recycled pellets is a significant problem that may arise out of the process of recycling pellets. For example, debris as well as contaminants like dirt, mixed polymer materials or residual additives and particles from the previous use and/or processing stages may jeopardize the internal structure and cleanliness of the final product. In order to accrue these challenges, there is considerable need for viable technologies of sorting and/or cleaning entirely, this has however been ineffective due to the lowest level of capability such as in governing these systems, minimizing residual and particles present which can change the attributes of the material.

Thirdly, consistency in the properties of the pellets in the recycling plan poses an additional challenge. The sources of the raw materials, age of the material, its difference in the degradability status and the lack of standardization of the processing parameters can raise issues of the difference in the color and some other properties of the pellets, for example, the MFI, and etc.. In such challenges faced by the manufacturers, it becomes recognized restrictions the manufacturers cannot trust the use of the recycled materials, especially when the requirements of the particular use of such materials are strict.

Most difficult part is that of making compliance with complex and demanding standards. One of the examples therein that gives a lot of trouble is that of where the recycled pellets have been produced within certain standards when it comes to chemicals and emissions with the likes of REACH, RoHS or indeed the food grade plastic stipulations of FDA. Failure to ensure uniformity in these guidelines can also have a negative impact on the market utilisation of the recycled reusable materials since they will be hardly utilized as an alternative to virgin resins.

Background also economic, furthermore expensive recycling technologies and the competition with cheaper new plastics, or their capabilities, create certain barriers. In other words, it is difficult for recycled pellets quality to reach every possible user point in the absence of adequate spending on your product-related efforts, equipment design and facility configuration to assure reliability and scalability of such products.

Innovations in Processing Recycled ABS

Innovations in Processing Recycled ABS

Advancements in Extrusion Techniques

I have learned from my research that the latest improvements of the extrusion methods utilized to recycle ABS (Acrylonitrile Butadiene Styrene) concentrate on increasing the purity of the material, making it wear stronger and, more important, achieving higher efficiency. For example, one of the most important developments in this field is the utilization of twin-screw extruders containing state of the art degassing systems. This kind of devices ensures very good gas removal efficiency hence, it is beneficial in raising the recyclates’ aesthetics and its practical applications. In addition to the above, the excessive melting and wasting of material is perceived as techniques are gaining up to a limit, which allows the properties of the mechanical performance of the waste material to be no different than the average performance of the virgin materials, including in specific temperatures to which it had been made to be subjected during compaction.

Another pertinent development is reliance on compatibilizer and reactive extrusion methods to enhance polymer–polymer interactions in hybrid recycled ABS compartments. These technologies permits the adjustment of the polymer’s structures within molecules of the polymer effectively and are particularly effective in the area of building solutions to the problem of various types of plastics. When, using crosslinked rubber, for example, it is possible to increase adherence of dissimilar polymer regions during the latex flow, thereby yielding a uniform and strong, cohesive construction. This is extremely beneficial for example in the automotive and the electronic sectors where engineering tolerances are very high.

Moreover, intelligent maintenance strategies have been incorporated within extrusion technologies to bring them up to date. In general, predictive maintenance and sensor-driven optimization have entered the picture growingly likely in any process of extrusion production. It is now possible for such structures to regulate their operation in both up and down directions. The reference parameters for the reactive compensation such as wang bck the screw speed, temperature profile and feed rates can be effectively configured instantly by the manufacturers owing to the help of real time monitoring and feedback. These developments are cost efficient and ecologically less harmful, two factors which are mainly of importance in the sustainable industrial design. In addition, the use of these technologies improves the prospects of commercialization of the recycling of ABS on a large scale.

Injection Molding with Recycled ABS Granules

Smooth processing of regrind plastics in an injection molding process (granulates of ABS) has unique technical and practical issues. From my knowledge, one of the hurdles one meets during the processing of recycled plastics is the consistent quality of the resulting product, particularly considering the regrind plastics can have differing MFI (melt flow index), amount of contaminants and parts qualities [14]. To overcome this, it is recommended to enlist assistance from potential suppliers who process only high-grade recycled materials with enhanced separation, cleaning and treating procedures. Another important step to be taken is a thorough action of preheating of the material in accurate conditions (usually between 100 and 110°C depending on the material nature for about 2-4 hours and max for curing). This will ensure an enhancement towards minimizing moisture related defects such as cracking, blistering and voids during the process of injection molding.

The process conditions have to be optimized very thoroughly when we use regrinds of ABS. In particular, the barrel temperature should be kept more or less constant in the range of 200°C and 250°C for easy material flow and good alignment of polymer chains during molding. I have noticed, that to avoid any thermal degradation that is more common in recycled materials, one needs to downscale the injection speed from virgin ABS. Also, the temperature of the mould should be adequately regulated to a specific range (between 50°C and 70°C) should be carefully checked to prevent fast cooling rates and overall unstable geometry of the moulded component.

Yes, introducing techniques of quality management automation for instance inline. spectroscopy or even visual systems has many obvious advantages that go for the process. The use of post-consumed ABS in manufacturing serves two purposes: it enables the meeting of environmental through reducing resources wastage, and requires the options be focused on the strategies to scale the business while maintaining operations quality and other business requirements’ compliance. Tapping into owhigh tech injection molding and management of Present Day, Trana trums whereby superior performance level can be achieved as with virgin ABS yet is contributing to the promotion of sound management of resources through such measures.

Reference Sources

Frequently Asked Questions (FAQs)

Is Recycled ABS Pellets Reliable in the Problem of Virgin ABS Production?

Recycled ABS plastic pellets are also suitable for replacing virgin ABS in production when procured from trusted sources and managed properly to eliminate harmful substances. Such pellets often maintain most of the strength and toughness properties of acryl -onitrile, butadiene, styrene terpolymers making them applicable in designing various plastic articles and goods. The use of recycled pellets enhances plastic retention in use by recycling and force unnecessary plastics disposed as post-consumers and post-industrial waste, away from the landfill. Several applications may need blending with the clear ABS polymer or the use of other additives so as to meet the specification requirements for most performance critical applications especially in automobile, electronic applications. The use of recycling ABS in general present a good economic and sustainable solution even while the reason why such plastc may be used in a particular part or the final product has not been forgone due to testing and inspection certifitions in place.

How does the mechanical treatment of recycled PE perform in injection molding and compression?

ABS recycled pellets are an exact fit for common thermoplastic processing methods like injection molding and extrusion. They generally exhibit good performance when it comes to optimal control of moisture and foreign bodies. It is highly probable that processors will not have any issues in terms of material flow or cycle time repeatability as these characteristics are similar to those of virgin ABS. There is the likelihood of minor adjustments that would need to be made in terms of temperature control or screw speed in order to improve performance in the case of output. The use of the recycled pellets includes making plastic granules or pellets for the purpose of making items such as home appliance casing, electronics casing and indoor car parts. Opting for a source that can conform to the required material shrinkage will go a long way in preventing problems and increasing efficiency. It is also recommended that the supplied material should be distinguished from the twin screw systems and as such the particular grades of the anaerobic molten materials also the injection reservoir temperatures should be high to avoid unproductive materials shrinkage. Proper drying and screening prior to molding help maintain high-quality parts and reduce the likelihood of defects caused by regrinds or contaminants.

What are some of the common uses of recycled abs plastic pellets that can be found in various industries?

Various industries use recycled ABS pellets including automotive, consumer goods, electronics, and appliances by virtue of said outstanding physical properties and durability. More specifically, they are popular in manufacturing dashboards, interior trims, appliance housing, and strong consumer goods where acrylonitrile butadiene styrene is used for impact. Recycled ABS is also utilized in automotive parts, especially such as injection-molded components, extrusion profiles, and other plastic materials that are classified as common. The use of these background materials stimulates a circular economy through replacing the use of new polymers that are dependant on different companies aimed at meeting their sustainability targets. Often, the manufacture of recycled ABS is adjusted to the conditions of a particular application, in order to mimic the established functions, retain the visual impact and keep down the cost.

Why is recycling so important, and how does it affect the natural environment?

Using recycled ABS pellets serves to decrease the amount of virgin ABS required as it involves the use of post-consumer and post-industrial materials into the process of production. In addition to that, recycling plastic becomes a savior to emission of greenhouse gasses as well as the global threat of waste in the form of landfills that are non-degradable in nature, this in turn helps in enhancing the wasteless economic systems and encourages the decrease in the generation of plastic waste at the end of usage in the environment. It encourages use of these materials in place of virgin resins and also reflects manufacturers commitment to sustainability in that, the green message is carried across in developed products. Another point worth mentioning is that, less energy is needed to recycle plastic than to make it from raw materials, and so it can be very cost effective in the long run, particularly when raw material prices are volatile. All in all, recycled ABS complements policy objectives and provides practical benefits including efficiency and decreased environmentally damaging resource exploitation.

What are common flaws in using mini abs pellets such as the quality of the product – granules and periodically ground ones?

As one is managing ABS plastic polystyrene pelletss and re-pellets, as a manufacturer, one has to be vigilant of the moisture levels, any pollutions and any deviation in the melt flow rate, for all of these are factors that tend to affect the shape and functional capabilities of the product. There are instances where other substances that are similar to plastics, these being PP, HDPE and LDPE, and plastic films of PLA as well as dirt can undermine aesthetics and functionality, demanding a somewhat thorough removal approaches. Constant inspection helps to check the levels of acrylonitrile, butadiene and styrene in the material as this maintains the strength and other properties of ABS polymer across different materials constituting the processes on the production floor. It’s always advisable to partner with a reliable vendor whose sources are easy to trace and provides guarantees which further disappointments common due to poor quality materials that might be provided. These solutions will help in curbing several common problems associated with reused materials, which will result in increased quality finish goods production.

Is it possible to mix uv stabilizers with abs recyclates?

Plastics such as recycled ABS pellets can be blended with polymers such as PP, HDPE, or PLA plastics but it may not impart the intended properties unless the proportion and formulation of such materials are optimized and compatibilizers are used. There will be also an issue with compatibility to melt the ABS and PP/HDPE since they have a different polarity and melting behavior that can cause phase separation and decrease impact strength in the absence of appropriate compatibilizing agents. PLA material is, however, biodegradable and does have different properties, hence blending it with ABS materials is also possible albeit less often but well within the realms of special modification in the process. Blends will find lowest average unit costs for uses which are less critical or which require blending to increase the stiffness or reduce unit costs. To enhance successful application of these in a given application and the materials performance in such are, it is suggested to carry out blend design and pilot scale runs.