POM GC-25宝理
更新时间:2024-06-12 16:58:52 信息编号:5847803 发布者IP:59.63.224.246 浏览:40次![](http://img.11467.com/2020/07-24/3888236991.jpg)
- 供应商
- 东莞市晶宏塑胶原料有限公司 商铺
- 认证
- 资质核验:已通过营业执照认证入驻顺企:第7年主体名称:东莞市晶宏塑胶原料有限公司组织机构代码:91441900MA5152YX6E
- 报价
- 请来电询价
- 生产厂商
- 日本宝理
- 牌号
- GC-25
- 用途级别
- 电子电器
- 关键词
- GC-25
- 所在地
- 东莞市樟木头镇百果洞百顺小区三巷5号一楼(注册地址)
- 联系电话
- 18200646066
- 手机号
- 18200646066
- 微信号
- 18200646066
- 经理
- 蒋珂 请说明来自顺企网,优惠更多
产品详细介绍
POM GC-25宝理--POM can be divided into homopolymer formaldehyde and copolymer formaldehyde according to the chemical structure of the molecular chain. Homopolymer formaldehyde is usually obtained by the polymerization of anhydrous polyformaldehyde. Copolymer formaldehyde is the product of the copolymerization of trimethylformaldehyde and a small amount of dioxane. It is precisely because of the different structure that the homopolymer and copolymer formaldehyde have different properties. The main differences between them are: the density and crystallinity of homopolymer formaldehyde are higher, the melting point and HDT are 10 degrees higher than that of copolymer formaldehyde, the strength, creep resistance and friction resistance are better, but the thermal stability is poor, the processing temperature range is narrow about 10 degrees, and the stability of acid and alkali is lower
POM melt is a kind of shear-sensitive polymer, which can be achieved by increasing the injection speed to increase the flow performance. At the same time, the cooling rate of POM crystallization will be very fast in the above applications. Surface defects such as wrinkles, speckles and weld marks will easily occur on the products, so it is necessary to improve the injection speed. When moulding products with large wall thickness, a slightly slower injection speed can be used to prevent the gas wrapped in the material from effectively discharging and producing holes due to the rapid injection speed.
POM is similar to PA in many respects, but its fatigue
resistance, creep resistance, rigidity and water resistance are
superior to PA. The crystallinity of POM is very high, from 73% to
86%, which depends on quenching temperature. When quenching
temperature changes from 0 to 155 C, the crystallinity changes from
78% to 82%. Annealing treatment will increase the crystallinity.
The higher the crystallinity, the higher the yield strength and
tensile strength
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