合成材料老化与应用2024，Vol.53Issue(2)：1-3,3.
高刚性聚甲醛结构与性能研究
Analytical Study on the Structure and Properties of Highly Rigid POM
杨军 1王启 1陈海华 1许瑞 2周涛2
作者信息
- 1. 国家能源集团宁夏煤业有限责任公司甲醇分公司,宁夏银川 750411
- 2. 高分子材料工程国家重点实验室,四川大学高分子研究所,四川成都 610065
- 折叠
摘要
Abstract
In this paper,the differences between general-purpose grade polyoxymethylene(MC90)and high rigidity POM(MC90-H)in terms of the various properties were studied.Firstly,the polarized light microscope photographs were observed to analyze the spherical crystal size of MC90-H;the mechanical property tests showed that the strength and modulus of MC90-H were higher than that of MC90,and it was a high-rigidity POM;the crystallization and melting temperatures as well as the crystallization rate of the paraformaldehyde were investigated by DSC;MC90-H was better than MC90 in the heat resistance,the content of free formaldehyde,the content of unstable end-groups,and the b value analysis tests.However,the melt index of MC90-H was slightly decreased.By studying the properties of the highly rigid polyoxymethylene,we can learn the importance of developing polyoxymethylene products with a balance of highly rigid and thermally stable polyoxymethylene,so that the polyoxymethylene can achieve better performance in high-end application scenarios.关键词
聚甲醛/高刚性/热稳定性Key words
POM/high rigidity/thermal stability分类
化学化工引用本文复制引用
杨军,王启,陈海华,许瑞,周涛..高刚性聚甲醛结构与性能研究[J].合成材料老化与应用,2024,53(2):1-3,3.
