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一种改性高岭土缓释膨胀剂的制备方法申请号:201610144395.1摘要:本发明涉及一种改性高岭土缓释膨胀剂的制备方法,属于膨胀剂制备技术领域。本发明首先将高岭土颗粒进行高压碾压并过筛,并与水调和成高岭土浆,升温加热,并滴加γ-氨丙基三乙氧基硅烷,保温加热,得活化高岭土浆液,再将其与制备的改性溶液混合,过滤,将滤饼烘干,并对其进行蒸汽养护后,对其煅烧,静置冷却,制备得得改
Preparation method of modified kaolin slow release expansion agent Application number: 201610144395.1 Abstract: The present invention relates to a preparation method of modified kaolin slow release expansion agent, belonging to the technical field of expansion agent preparation. In the invention, the kaolin particles are firstly subjected to high-pressure rolling and sieving, reconciling with water to form kaolin slurry, heating with increasing temperature, adding γ-aminopropyltriethoxysilane dropwise and keeping warm for heating to activate the kaolin slurry, Mixed with the prepared modified solution, filtered, the filter cake is dried, and its steam curing, calcined, allowed to stand to cool, the preparation was modified