PA66 plastic has a higher melting point among polyamide materials. It is a semi-crystalline-crystalline material. PA66 can maintain strong strength and rigidity even at higher temperatures. PA66 plastic still has hygroscopicity after molding, the degree of which mainly depends on the composition of the material, wall thickness and environmental conditions. In product design, the influence of moisture absorption on geometric stability must be considered. PA66 plastic has low viscosity, so it has good fluidity (but not as good as PA6).......

Although ASA has excellent weather resistance, good processability, chemical resistance and balanced mechanical properties, it also has the disadvantages of poor heat resistance and cold resistance, which limits the application of ASA in certain fields. Therefore, it is necessary to modify it appropriately. ASA has excellent compatibility with other polymers and can be composed of alloy materials with a wide range of properties. 1. Heat-resistant modification can use methyl styrene to replace all or part of styrene monomer to prepare heat-resistant ASA........

High-end nylon modified type-in the repeating structural unit of the main chain of the nylon molecule, a type of thermoplastic resin containing an amide group (-CONH-), including aliphatic polyamide, aliphatic-aromatic polyamide and aromatic polyamide. There are many varieties of aliphatic polyamides........

The use of nylon materials is very common, as small as nylon stockings, as large as the peripheral parts of the car engine, etc., have spread all aspects of our lives. PA modified material is the largest and most important variety in engineering plastics, and it has strong vitality, mainly because it achieves high performance after modification, followed by the automotive, electrical, telecommunications, electronics, machinery and other industries themselves. The requirements for nylon data function are different depending on the scope of use...

ASA new material is a ternary polymer composed of acrylonitrile (Acrylonitile), styrene (Styrene), and acrylic rubber (Acrylate), which is an impact modified resin. ASA material can not only resist degradation, aging, and fading caused by ultraviolet radiation, but also has a strong guarantee against decomposition or discoloration caused by high temperature in the oxidation process in the atmosphere, thereby greatly improving the anti-aging and weather resistance of the material .........

Plastics can be divided into two types: thermosetting and thermoplastic. The former cannot be reshaped and used, and the latter can be repeatedly produced. Plastics mainly have the following characteristics: ①Most plastics are light, chemically stable, and will not rust; ②Good impact resistance; ③Good transparency and wear resistance; ④Good insulation and low thermal conductivity; ⑤ Generally, it has good formability, colorability, and low processing cost; ⑥Most plastics have poor heat resistance and high thermal expansion rate.......