合成材料老化与应用2024，Vol.53Issue(6)：16-19,4.
耐燃油级高端共聚甲醛的结构及性能对比
Comparison of the Structure and Performance of Fuel-resistant High-end Copolyformaldehyde
王启 1李军 1王亮 1高勇 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
This article comprehensively compares the performance differences between fuel-resistant high-end POM(MC90-DR)and general-purpose grade POM(MC90).The differences in spherical crystal size as well as crystalline properties of MC90-DR were analyzed by comparing the spherical crystal photographs and DSC curves.In the TG curves,the thermal stability properties of POM were investigated.The changes in strength and modulus of POM were compared by mechanical property tests.The differences in free formaldehyde content,unstable end-group content,melt index,and ash content of POM were also comparatively analyzed.In both the acid and fuel resistance tests,MC90-DR has a much better performance.The colour space L*a*b test was used to analyze the difference in the hue of POM.Fuel-resistant grade high-end POM can significantly improve the resistance of POM parts to harsh external environments,such as fuel or acid,to meet the needs of automotive fuel systems.关键词
聚甲醛/耐酸性/耐燃油性/热稳定性Key words
POM/acid resistance/fuel resistance/thermal stablity分类
化学化工引用本文复制引用
王启,李军,王亮,高勇,许瑞,周涛..耐燃油级高端共聚甲醛的结构及性能对比[J].合成材料老化与应用,2024,53(6):16-19,4.
