1. According to the various properties of plastics after heating, they are divided into thermoplastics and thermosetting plastics

The molecular structure of thermoplastics can be linear frames that soften or melt when heated, can be shaped under a antistatic plastic variety of conditions, and harden when cooled.

It softens when briefly heated to your specific size and hardens again soon after cooling. This approach may be repeated frequently. Like polyvinyl chloride, polyethylene, polystyrene, etc. The thermoplastic molding process is quite simple, it can be continuously created, and the technical strength is high, so it is developing rapidly.

After the thermosetting plastic is processed and formed, it also softens when heated, and can be molded into a certain shape, but after heating to a certain amount or incorporating a small amount of healing agent, it will harden and form, and may not soften and be heated again. Change.

After thermosetting plastics are packaged and shaped, they are no longer softened by temperature and cannot be processed and reused, such as phenolic plastics, aminoplastics, epoxy resins, etc. The molding method of thermosetting plastics is more challenging, so there are certain challenges in Hengsheng, but its thermal resistance is large, it is not easy to deform, and the price is relatively low.

2. According to the different uses of plastics, it is divided into general plastics and engineering plastics

General-purpose plastics refer to plastic materials with a large amount of achievements, a large transaction volume and a variety of projects, mainly including five types of polyolefin, polyvinyl chloride, polystyrene, phenolic plastic materials and amino plastic materials. Many products that people use in their daily lives are made from these basic-purpose plastics.

Building plastic materials are plastics that can be used as engineered building components, not metals used to make unit parts. For example, polyamide, polycarbonate, polyoxymethylene, gastric muscle resin, polytetrafluoroethylene, polyester, polysulfone, polyimide, and the like.

Technical plastic materials have the characteristics of low density, stable chemical substances, excellent mechanized components, excellent electric heating insulation materials, and simple shaping and molding. They can be used in a wide range of markets such as vehicles, electric appliances, substances, equipment, and devices. , missiles, etc.


like:

What is antistatic plastic material?