聚氨酯改性尼龙球磨机内衬的研制  

Preparation of Nylon Ball-stirring Mill Lining Modified by Polyurethane

作　　者：赵伟[1] 杨洁[1] 赵彩荣[1] 周刚 

机构地区：[1]河南省科学院高新技术研究中心,郑州450002 [2]信阳市辐射环境安全技术站,河南信阳464000

出　　处：《河南科学》2013年第8期1164-1167,共4页Henan Science

摘　　要：采用相对分子质量为2000的聚四亚甲基醚二醇(PTMG)合成NCO质量分数为4.0%的聚氨酯预聚体,用于增韧改性铸型(MC)尼龙.结果表明,当预聚体的用量为共聚物质量分数的15%,共聚产品显示出最大的冲击强度,将此改性材料应用于球磨机内衬,显示出比聚氨酯内衬更好的耐温性能.A polyurethane prepolymer was synthesized to modify the monomer casting nylon. The result showed that when the prepolymer prepared at the NCO content of 4% with PTMG molecular weight of 2000 and the prepolymer dosage was 15% mass fraction of copolymer, copolymer had maximum impact strength. The modified material used in ball-stirring mill lining had better temperature-resistance property than polyurethane lining.

关 键 词：聚氨酯 改性 尼龙 球磨机 内衬 

分 类 号：TQ317.9[化学工程—高聚物工业]