The present invention relates to precipitated silica having the following physicochemical parameters: CTAB 50 m2/g to 450 m2/g, BET/CTAB tilt; 1.3, the trailing factor 5% is greater than or equal to 150nm. The precipitated silica is prepared by reacting water glass with H2SO4 using various aging steps. The precipitated silica can be used to prepare rubber mixtures.
本发明涉及具有以下物理化学参数的沉淀二氧化硅:CTAB 50m2/g–450m2/g,BET/CTAB比<1.3,拖尾因子5%≥150nm。该沉淀二氧化硅通过使用各种陈化步骤使水玻璃与H2SO4反应而制备。该沉淀二氧化硅可用于制备橡胶混合物。
Precipitated silica, method for production thereof and use thereof
沉淀二氧化硅、其制备方法及其用途
2024-06-07
Patent
Electronic Resource
Chinese
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