ABS is one of the five major synthetic resins, which is the acronym of acrylic butadiene styrene, and refers to acrylonitrile butadiene styrene * * * polymer. It is a thermoplastic polymer structure with high strength, good toughness and easy processing and molding, also known as ABS resin. Abs production technology is mainly divided into emulsion method and bulk method. Most of them are emulsion method, which contains many advantages: good impact, good heat resistance, good low temperature resistance, good chemical resistance, excellent electrical properties, easy processing, good dimensional stability, good surface gloss and so on. It is also easy to color, and it can also be coded and sprayed with gold.
The general ratio of three monomers in ABS*** polymer is 20: 30: 50. As long as the ratio, polymerization method and particle size are changed, a series of ABS varieties with different impact strength and flow characteristics can be produced. For example, increasing the content of butadiene can improve the impact strength of ABS, but the hardness and fluidity will decrease, and the strength and heat resistance will become worse. If the butadiene content in ABS reaches more than 50%, it is called high rubber powder, which is often used to toughen ABS and PC/ABS.
ABS was originally developed on the basis of PS modification. Because of its unique advantages in toughness, rigidity and hardness, its dosage is equivalent to that of PS, and its application range has far exceeded that of PS, making it a kind of plastic independent of PS. In the early days, ABS was classified as a kind of engineering plastics, but with its rapid development, its output soon approached its parent PS, so it was classified as a kind of general plastic since 2000 and became the fifth largest general plastic variety.