纳米活性碳酸钙对室温硫化硅橡胶补强作用研究  

Study on Reinforcement of Ultrafine Activated CaCO_3 on RTV Silicone Rubber

作　　者：王天强 李冈效 王腾腾 吴友平[2] 邹百军 赵素合[2] 王有治 张立群[2] 

机构地区：[1]成都硅宝科技股份有限公司,成都610041 [2]北京化工大学先进弹性体材料研究中心,北京100029

出　　处：《有机硅材料》2017年第3期154-159,共6页Silicone Material

摘　　要：分别以4种纳米活性碳酸钙为补强填料,在相同混炼工艺条件下,制得脱醇型单组分室温硫化(RTV-1)硅橡胶。通过对4种填料粒径、形貌、表面改性剂等的对比分析发现,填料原生粒径越小,制备的胶料稠度越高,对硅橡胶的补强效果越显著;同时,填料自身形貌越规整、在硅橡胶中的分散性越好也会提高硅橡胶的力学性能。Dealcoholized RTV-1 silicone rubber was prepared by 4 different calcium carbonates as the reinforcing filler under the same process. According to the result, it can be concluded that as the primary particle size of the calcium carbonates decreases, the tensile strength, the breaking elongation of the silicone rubber were increased obviously. At the same time, the regularity of particle morphology and the dispersion of calcium carbonate in silicone rubber also have some effect on the mechanical property of silicone rubber.

关 键 词：纳米活性碳酸钙 硅橡胶 粒径 形貌 补强 

分 类 号：TQ333.93[化学工程—橡胶工业]