以张家口高岭石为原料,通过二甲基亚砜和甲醇处理获得高岭石-甲醇插层复合物,以此为前驱体,常温条件下在γ-氨丙基三乙氧基硅烷(APTES)及APTES与甲醇组成的反应液中制备出了一系列高岭石-硅烷插层复合物,并利用XRD、FTIR、TEM对其结构和形貌进行了表征。结果表明:反应液中甲醇的加入会使插层复合物的层间距减小,且反应液中甲醇所占的比重越大,所得插层复合物的层间距越小。透射电子显微镜发现:当反应液中不加入甲醇时,所得插层复合物(K-APTES)仍呈现出六方片状的晶形,但加入甲醇后,所得插层复合物出现明显的卷曲剥离现象。上述现象均是由于甲醇与APTES发生醇解反应生成γ-氨丙基三甲氧基硅烷(APTMS)并随APTES分子一起插入高岭石层间造成的。 Using kaolinite from Zhangjiakou as raw material, kaolinite-methanol intercalation complex was obtained by treating with dimethylsulfoxide and methanol. As a precursor, the kaolinite was dissolved in γ-aminopropyltriethoxysilane (APTES ) And APTES with methanol, a series of kaolinite-silane intercalation compounds were prepared. Their structures and morphologies were characterized by XRD, FTIR and TEM. The results show that the intercalation of intercalation compounds decreases with the addition of methanol in the reaction solution, and the larger the specific gravity of methanol in the reaction solution, the smaller the interlayer spacing of the resulting intercalated complexes. Transmission electron microscopy revealed that K-APTES still showed a hexagonal crystal form when methanol was not added to the reaction solution, but the addition of methanol resulted in obvious curling and peeling of the resulting intercalated composite. The above phenomena are caused by the alcoholysis reaction of methanol and APTES to produce γ-aminopropyltrimethoxysilane (APTMS) and the intercalation of kaolinite with the APTES molecules.