摘要
选择8种常规无机填料,考查了填料对聚硫密封剂力学性能和粘接性能的影响。耐水试验后发现填充煅烧高岭土、气相SiO_2、水洗高岭土的密封剂耐水性能最优,其次是轻质CaCO_3、重质CaCO_3、沉淀SiO_2,填充TiO_2和滑石粉的密封剂性能变化较大。二氧化硅填料单独使用对粘接性能影响大,出现脱粘现象,煅烧高岭土为填料时剥离强度变化最小。
This paper is focused on the effect of different fillers on mechanical properties and adhesion properties of polysulfide sealant after soaking in water.After water resistance experiments,it was found that the polysulfide sealants filled with calcined kaolin,fumed silica or washed kaolin had the best water resistance,the second was as follows：precipitated calcium carbonate,ground calcium carbonate and precipitated silica.The mechanical properties of polysulfide sealant filled with TiO2 or talcum powder changed greatly.The adhesive failure would occur when the polysulfide sealant was filled with silica.And the polysulfide sealant filled with calcined kaolin had the best adhesion property.
出处
《粘接》
CAS
2012年第6期40-43,共4页
Adhesion
关键词
填料
聚硫
密封剂
filler
polysulfide
sealant
