POM LA541旭化成

POM LA541旭化成-- Polymer,Thermoplastic,Acetal (POM),Acetal Homopolymer, Unreinforced Asahi Kasei，Excellent friction and wear on metals and plastics, except POM. Information provided by Asahi Kasei Corporation.

特性备注：高润滑性嵌段共聚物,的耐摩擦和磨损性,的刚性

重要参数： 熔体流动速率:17 g/10min 密度:1.38 g/cm3 吸水率:0.2 % 成型收缩率:2 % 缺口冲击强度:69 拉伸强度:57 MPa 弯曲强度:89 MPa 弯曲模量:2650 MPa 硬度:120 热变形温度:115 ℃

生产厂商：日本旭化成工业株式会社

POM has a limit oxygen index of only 15%, which is a very flammable plastic variety. As engineering plastics, POM is widely used in automobile, electronics, electrical and building materials, which require high flame retardancy of materials. Due to the poor compatibility of POM with other materials, it is difficult to prepare flame retardant POM with excellent properties by adding flame retardant directly. Asahikawa Industrial Co., Ltd. of Japan has applied for a patent for a flame retardant polyformaldehyde super-extender. The flame retardant polyformaldehyde superelongation is prepared by coating vinylidene chloride polymer latex on the superelongated polyformaldehyde or by mixing the latex with metal oxides or hydroxides. Each gram of polyformaldehyde was coated with 0.2-0.5g, and a continuous film was obtained. The oxygen index was more than 40, and the flow temperature was more than 100 C.

Polyformaldehyde is an important kind of thermoplastic engineering plastics. It has two kinds of polymers, homopolymer and copolymer. The main chain structure of polyformaldehyde is a high crystallinity polymer. Polyformaldehyde has high rigidity and resilience, excellent fatigue resistance and wear resistance, less creep and water absorption, good chemical corrosion resistance, solubility resistance, self-lubrication and electrical insulation. In many applications, it can replace non-ferrous metals such as steel, copper, aluminium and zinc. It is widely used in automotive industry, electronic and electrical, industrial instruments, consumer goods and other fields. In the 1960s and 1970s, the main consumption market of polyformaldehyde was in Europe and the United States. After entering the 1980s, Japan's consumption grew rapidly. In the past decade, with the gradual transfer of downstream industries of polyformaldehyde from Japan to foreign countries, Japan's consumption growth slowed down, while consumption in other parts of Asia grew fastest in the world.