摘要
使用甲基丙烯酸表面改性纳米碳酸钙,并研究改性碳酸钙对氯丁橡胶物理性能(拉伸强度、撕裂强度、伸长率、应力弛豫)及抗老化性能的影响。结果表明:甲基丙烯酸改性纳米碳酸钙能明显增大氯丁橡胶的撕裂强度,提高其体积电阻率和介质损耗,并改善其抗老化性能。但改性纳米碳酸钙会延长硫化氯丁橡胶体系硫化时间,且对其体系的补强作用只限于一定范围。
The paper used methacrylic acid to modify nano-calcium carbonate and modified nano-calcium carbonate filled with chloroprene rubber. The effect of modified nano-calcium carbonate on the vulcanizing and mechanical properties of chloroprene rubber, such as tensile strength, tear strength and percentage elongation, was investigated. The results showed that modified nano-calcium carbonate enhanced its tear strength, raised its volume resistivity and dielectric loss and prolonged its vulcanizing time. But its tensile strength was only enhanced in the limited range.
出处
《广东化工》
CAS
2008年第5期77-79,共3页
Guangdong Chemical Industry
基金
衡阳师范学院科学基金资助项目(2006B33)
关键词
甲基丙烯酸
纳米碳酸钙
氯丁橡胶
物理性能
机械性能
介电性能
methacrylic acid
nano-calcium carbonate
chloroprene rubber
physical property
mechanical property
thermodynamic property
