Processing points of heat-resistant ABS resin molding

The heat resistance of ordinary ABS is not good enough. Now, a series of heat-resistant ABS resins have been developed by adding heat-resistant agents such as ɑ-methylstyrene copolymer and N-phenylmaleimide copolymer. ) is 90-120℃.

Since the molecular structure of heat-resistant ABS contains highly rigid benzene rings and N-phenyl groups, the heat resistance is improved, and the steric hindrance effect of the molecular chain is also increased, so that the relaxation speed of the molecular chain is reduced, and it is easy to make the product. There is a large internal stress, which leads to defects such as stress cracking, stress whitening, and brittleness of the product. Therefore, reducing the internal stress of the product is the key to heat-resistant ABS injection molding.