摘要
研究硅酸钙/炭黑并用比对天然橡胶(NR)再生胶性能的影响。结果表明:随着硅酸钙/炭黑并用比的增大,NR再生胶的焦烧时间逐步缩短,操作安全性降低,t90逐步缩短,硫化速率逐步提高;密度、邵尔A型硬度和拉断永久变形变化不大,拉伸强度和拉断伸长率明显提高,即硅酸钙对NR再生胶有明显的补强作用。
The effect of calcium silicate/carbon black blend ratio on the properties of NR reclaim was investigated. The results showed that,as calcium silicate/carbon black blend ratio increasing,the scorch time of NR reclaim was gradually shortened,indicating reduced processing safety,t90 was gradually shortened,the vulcanization rate gradually increased,the density,Shore A hardness and tensile set at break changed a little,and the tensile strength and elongation at break increased significantly. The study showed that calcium silicate had a good reinforcement effect on NR reclaim.
作者
邓建清
陆晓中
刘学民
季常青
孙晓民
DENG Jianqing LU Xiaozhong LIU Xuemin JI Changqing SUN Xiaomin(Beijing University of Chemical Technology, Beijing 100029, China Beijing Institute of Petrochemical Technology, Beijing 102617, China Beijing Research and Design Institute of Rubber Industry,Beijing 100143 ,China)
出处
《橡胶工业》
CAS
2016年第12期738-740,共3页
China Rubber Industry
基金
国家科技支撑计划重大项目(2009BAB49B02)
关键词
天然橡胶再生胶
硅酸钙
炭黑
补强作用
NR reclaim
calcium silicate
carbon black
reinforcement effect
