摘要
对作为橡胶补强剂的超细硅藻土颗粒的表面采用硅烷偶联剂进行处理进行实验研究,通过改性前后样品的堆积密度、石蜡中悬浮液的浊度、吸油量等对改性效果进行表征,并采用红外光谱对改性机理进行分析。结果表明:硅烷偶联剂双-(γ-三乙氧基硅基丙基)四硫化物的质量分数为1.2%时,改性效果最佳,此时硅烷偶联剂分子与硅藻土颗粒表面之间以化学键合作用为主,形成Si—O—Si键合。
The surface treatment of ultra fine diatomite particles as rubber reinforcing agent was researched with silane coupling agent. The prepared samples were characterized by bulk density, suspension turbidity in paraffin and oil absorption. The surface modification mechanism was indicated by means of FTIR The results showed that the mass fi＇action of modifier dosage ofdual-γ-tdethoxysilyl silicon-propyl ） tetrasulfide silane coupling agent was 1.2 %, which ggve the best effect of modification. The silane coupling agent were mainly bonded to the surface ofdiatomite particles in structure of Si-O-Si.
出处
《中国粉体技术》
CAS
北大核心
2011年第2期20-22,共3页
China Powder Science and Technology
基金
中央高校基本科研业务费专项资金项目
编号:2010ZY48
中国博士后基金特别资助项目
编号:200902128
关键词
硅藻土
硅烷偶联剂
表面改性
diatomite
silane coupling agent
surface moidification
