【摘要】 采用钛酸酯偶联剂对碳酸钙晶须进行改性,研究改性碳酸钙晶须对炭黑/天然橡胶/丁腈橡胶复合材料性能的影响。结果表明:改性后碳酸钙晶须的表面性质改变,有效改善了碳酸钙晶须与橡胶基体的相容性,提高了复合材料的物理性能和储能模量,增强了Payne效应,对耐油性能影响不大;当改性碳酸钙晶须用量为4份时,复合材料的综合性能最佳。更多还原

【Abstract】 The calcium carbonate whisker was modified by titanate coupling agent,and the effect of modified calcium carbonate whisker on the properties of carbon black/NR/NBR composites was investigated.The results showed that,after modification of calcium carbonate whisker,the surface characteristics of calcium carbonate whisker was changed,the compatibility between calcium carbonate whisker and rubber matrix was improved effectively,the physical properties and storage modulus of the composites were improved,Payne effect was enhanced,and oil resistance changed little. When the addition level of modified calcium carbonate whisker was 4 phr,the comprehensive properties of the composites were the best.更多还原