Polycarbonate acrylonitrile-butadiene-styrene alloy properties

Acrylonitrile Butadiene Styrene Polymer Polycarbonate Alloy A thermoplastic processed by injection molding and extrusion, with properties similar to ABS. Used in automotive applications. Also called ABS PC alloy. 

Deficiencies in polymer blends in terms of some properties of interest can be overcome by making a polymer alloy. For example, a polymer blend extensively practiced in the indnstry is the PC/ABS blend—polycarbonate, acrylonitrile butadiene, and styrene engineered thermoplastic. PC/ABS blends possess higher heat resistance, reduced notched sensitivity, and undesirable flow properties in many injection-molding applications. 

Formation of a polymer alloy is a common way to improve the property of PLLA. Many kinds of polymers such as polyethylene [70], polypropylene (PP), polystyrene (PS) [71], poly (methyl methacrylate) [72], bisphnol-A type polycarbonate, poly(E-caprolactone), poly(3-hydroxybuty-rate), poly (butylene succinate) (PBS) [73], poly(butylene succinate/adipate) (PBSA), acrylonitrile-butadiene-styrene have been used for preparing PLLA alloys, and some of which have been commercialized. However, there has been no discussion of the thermal degradation behavior of the PLLA component. 

Blends or Alloys Sometimes two or more plastics are mixed or alloyed to achieve special properties and are known as polyblends. ABS (acrylonitrile, butadiene and styrene) and PBT (polybutylene terephthalate) are often used in engineering applications with polycarbonate, polysulphone, etc. Several combinations and their improved features are given below (see Crawford (1992) for a more complete discussion of alloys). 

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