通用级和纺丝级聚甲醛对比分析  

Comparative Analysis of General and Spinning POM

作　　者：乃国星 张彩霞 孙亚楠 方伟 袁炜 金政伟 许瑞[3] 冯金 周涛[3] Nai Guoxing;Zhang Caixia;Sun Yanan;Fang Wei;Yuan Wei;Jin Zhengwei;Xu Rui;Feng Jin;Zhou Tao(Coal To Methanol Branch,China Energy Group Ningxia Coal Industry Co.Ltd.,Yinchuan 750411,China;Institute of Coal Chemical Industry Technology,China Energy Group Ningxia Coal Industry Co.Ltd.,Yinchuan 750411,China;State Key Laboratory of Polymer Materials Engineering of China,Polymer Research Institute,Sichuan University,Chengdu 610065,China)

机构地区：[1]国家能源集团宁夏煤业有限责任公司甲醇分公司,银川750411 [2]国家能源集团宁夏煤业有限责任公司煤炭化学工业技术研究院,银川750411 [3]高分子材料工程国家重点实验室,四川大学高分子研究所,成都610065

出　　处：《工程塑料应用》2021年第10期120-123,共4页Engineering Plastics Application

基　　金：宁夏煤制油与煤化工技术研发团队项目。

摘　　要：主要研究了纺丝级聚甲醛(POM)(MC90–F)与通用级POM(MC90)在热稳定性、结晶性能等方面的差异性。通过偏光显微镜、热重分析、差示扫描量热仪、表面醛和不稳定端基含量等测试方法,综合分析发现,MC90–F相比MC90具有更加优异的热稳定性,其表面醛含量和不稳定端基含量均低于MC90;MC90–F的结晶速度明显低于MC90,因此MC90–F纤维可进行高倍牵伸,实现高强聚甲醛纤维的制备,并应用于土工建材领域。The differences between spinning grade polyformaldehyde(MC90–F)and general grade polyformaldehyde(MC90)in thermal stability,crystallization properties and other aspects were studied.By means of polarizing microscope,thermogravimet-ric analysis,differential scanning calorimetry,surface aldehyde and unstable end group content,it is found that MC90–F had better thermal stability than MC90,and the surface aldehyde content and unstable end group content are lower than MC90.The crystalliza-tion rate of MC90–F is obviously lower than that of MC90,so MC90–F fiber can carry out high draft,realize the preparation of high strength polyformaldehyde fiber,and be used in the field of geo-building materials.

关 键 词：聚甲醛 纤维 纺丝级 加工性能 

分 类 号：TQ322.3[化学工程—合成树脂塑料工业]