精细胶粉物理化学法制备及其组织性能  

Experimental Study on Physicochemistry Method for Fine-grade Rubber Power and Its Microstructure Property

作　　者：王开坤[1] 康永林[1] 朱正吼[2] 

机构地区：[1]北京科技大学材料科学与工程学院,北京100083 [2]南京航空航天大学,南京210006

出　　处：《北京科技大学学报》2002年第2期177-180,共4页Journal of University of Science and Technology Beijing

基　　金：国家"973"项目资助项目(No.2000067202)

摘　　要：物理化学法制备的胶粉粒度比用传统粉碎工艺制备的胶粉粒度要细化得多；延长粉 碎时间、增加料筒中介质体积分数、减少装料体积均有利于胶粉细化．试验还显示：用物理化学 法制备的精细胶粉粒度低，力学性能也明显优于普通粉碎法．６０～８０目胶粉的扯断强度最低， １４０～２００目胶粉的扯断强度最高．A new physicochemistry method for producing fine-grade rubber power is introduced. The main factors influencing the effective time in producing fine-grade rubber power are also discussed. The ex- perimental results show that the grade of rubber powder produced with physicochemistry method is much fin- er than that with conventional method. Prolonged grinding time, increased ratio of rubber-power /agent and decreased filling volume can lead to fine-grade rubber powder. The results also show that the mechanical pro- perties of rubber powder by physicochemistry method are superior to that by conventional one, the tensile strength for 60-80 mesh grade rubber powder is the lowest, and for 140-200 mesh grade being the highest.

关 键 词：精细胶粉 物理化学法 制备 组织性能 粒度 延伸率 抗拉强度 橡胶 粉碎 

分 类 号：TQ330.56[化学工程—橡胶工业]