欧美电影精品久久久久,精品国产日韩一区二区三区在线,国产亚洲成av片在线尤物,欧美另类清纯中文字幕乱码

What is the function of Jiangmen engineering plastics

2020-09-14 2141

Engineering plastics can be used as engineering materials and substitute for metals. Excellent mechanical function, heat resistance and dimensional stability are required. There are polyoxymethylene, polyamide, polycarbonate, ABS plastics and so on. For example, the mechanical and mechanical functions of polyoxymethylene are similar to those of copper and zinc. If it is used as a bearing on a car, its service life is twice as long as that of metal. It can also be used as other spare parts. Polycarbonate can not only replace some metals, but also replace glass, wood and alloy. It can be used as the shell of various instruments, bicycle frame, windshield and furniture of aircraft.

(1) polyamide (nylon)

Polyamide is a kind of thermoplastic engineering plastics. It is a long chain polymer compound formed by many units with amide group structure. For example, nylon-66 is polycondensated from adipic acid and hexanediamine, and its structural formula is

Due to its light weight, excellent mechanical strength, wear resistance and good corrosion resistance, polyamide is widely used to replace copper and other metals in the manufacturing of bearings, gears, pump blades and other parts in machinery, chemical industry, surface, car and other industries. Polyamide has high strength after melt spinning. It can be used as synthetic fiber and medical suture.

江門工程塑料

(2) ABS engineering plastics

ABS resin is a copolymer of acrylonitrile (a), butadiene (b) and styrene (s)

ABS resin maintains the excellent electrical function and easy processing formability of styrene, but also increases elasticity, strength (the characteristics of butadiene), heat resistance and corrosion resistance (excellent function of acrylonitrile), and has high surface hardness and good chemical resistance. By changing the share of the above three components, various functions of ABS can be changed. Therefore, ABS engineering plastics have a wide range of uses and primary uses In mechanical, electrical, textile, car and shipbuilding industries.

(3) polycarbonate

Polycarbonate is a new type of thermoplastic engineering plastics

Polycarbonate has excellent electrical insulation function and mechanical function, especially in shock resistance function. It has high tolerance, wide temperature planning (- 100 ~ 130 ℃), high transparency (known as "Tongming metal") and convenient processing and molding. It can replace not only some metals, but also glass and wood. In recent years, polycarbonate has developed rapidly and has been widely used in machinery, car, aircraft, instrument surface and electrical appliances.

Source: Jiangmen engineering plastics http://m.znifikx.cn/


Recommended news
主站蜘蛛池模板: 广丰县| 洛南县| 嘉荫县| 文登市| 长子县| 大新县| 灵璧县| 马鞍山市| 含山县| 海淀区| 武乡县| 平果县| 来安县| 辉南县| 江口县| 闽清县| 交城县| 岫岩| 竹山县| 安图县| 宽城| 加查县| 尤溪县| 连平县| 保德县| 昌都县| 台州市| 北票市| 独山县| 章丘市| 信阳市| 临朐县| 英吉沙县| 昔阳县| 资阳市| 肥东县| 西宁市| 博白县| 凤台县| 焦作市| 平顶山市|