摘要
以浓硫酸为原料合成硅橡胶用白炭黑,研究了反应温度和反应时间对白炭黑吸油值、堆积密度、和中位径的影响。研究发现:随着反应时间的延长吸油值先增大后减小,堆积密度先减小后增大,中位径先减小后增大。随着反应温度的提高,吸油值先增大后减小,堆积密度先减小后增大,中位径逐渐减小。通过对这些实验因素进行综合分析优化,确定最佳反应温度为85℃,反应时间为25min,制备了适合硅橡胶补强用的白炭黑。
In the reaction process of silica by oil of vitriol precipitation,oil-absorbed value,bulk density,size of amorphous silica were studied by reaction time and reaction temperature.The result shows that with the increasing of the reaction time,the oil-absorbed value increased first and decreased then,bulk density decreased first and increased then,the size of amorphous silica decreased first and increased then.With the increasing of reaction temperature,the oi-absorbed value increased first and decreased then,bulk density decreased first and increased then,the size of amorphous silica gradually decreased.Through the comprehensive analysis of factors,the best reaction temperature is 85 ℃,the best reaction time is 20 min.Silica is prepared for rubber reinforcement.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2009年第6期1245-1248,共4页
Bulletin of the Chinese Ceramic Society
