微波辐射制备高岭石/聚丙烯酰胺插层复合物

本文将微波技术引入到制备高岭石/有机物插层复合物的研究中,以DMSO为前驱体,研究了微波辐射对高岭石的有机插层、取代、原位聚合作用.发现微波能加快插层和置换反应,极大地缩短反应时间.微波辐射下插层时间为30 min时,插层率即可达到75%以上,置换反应50 min,置换率达到77%以上.同时发现微波在反应中对高岭石具有剥片效果.采用X射线衍射、FT-IR光谱、TG、TEM等技术对插层复合物及微波作用机理进行了探讨.

The preparation of kaolinite/polyacrylamide intercalated compound by microwave irradiation

In this paper, the authors applied microwave techniques to the preparation of kaolinite/organics intercalated compound. The effects of microwave during intercalation, displacement and in situ polymerization were investigated through DMSO and aerylamide. The result shows that the microwave energy can accelerate intercalation and displacement reactions. After 30 minutes of reaction, the intercalation rate reached 75%. The displacement rate of acrylamide reached above 77% after 50 minutes of irradiation. It is also found that the microwave energy has the exfoliation effect on kaolinite. The intercalated compound and the reaction principle of microwave irradiation were studied by such means as FT-IR, XRD, TG and TEM.