高耐磨炭黑填充型粉末NR研究 (I)粉末化条件与粒径分布  

Study on N330-filled powdered NR (I) Powdering conditions and particle size distribution

作　　者：米雄飞[1] 王炼石[1] 张安强[1] 周奕雨[1] 

机构地区：[1]华南理工大学材料科学与工程学院高分子材料科学与工程系,广东广州510640

出　　处：《弹性体》2004年第2期6-9,共4页China Elastomerics

基　　金：国家自然科学基金资助项目(59773010);广东省自然科学基金资助项目(970554)。

摘　　要：以天然橡胶(NR)胶乳为原料,高耐磨炭黑(N330)为填充补强剂,高分子合成树脂为包覆剂,以凝聚共沉法制备高耐磨炭黑填充型粉末天然橡胶[P(NR/N330)];研究了粉末化条件对产物粒径分布的影响因素,结果发现,由NR胶乳、改性炭黑和玻璃化温度(θg)为35～128℃的包覆剂构成的粉末化体系在85℃处理1h可形成无接触污染性的、粒径小于0.9mm的P(NR/N330)。The carbon black-filled powdered NR was prepared with coagulation co-precipitation method using NR latex as raw rubber material, N330 as reinforcing filler and polymer resin as encapsulant. The relationship between particle size distribution and powdering conditions was investigated. The results showed that the product with contact stainlessness and particle diameter less than 0.9mm was obtained when the powdering system was consisted of NR latex, surface modified N330 and encapsulant with θg of 35 to 128℃ and then the liquid mixture was treated at 85℃ for 1 hour.

关 键 词：填充型粉末橡胶 凝聚共沉法 粒径分布 炭黑 填充剂 粉末化条件 

分 类 号：TQ33[化学工程—橡胶工业]