水溶性疏水缔合聚合物-膨润土纳米复合材料的研究  

Study on Water-Soluble Hydrophobically Associated Polymer-bentonite Nanocomposites

作　　者：徐伟 王鹤 刘希峰 XU Wei;WANG He;LIU Xifeng(Sinopec Shengli Oilfield Branch Oil and Gas Exploration Management Center,Dongying 257000,China)

机构地区：[1]中石化胜利油田分公司油气勘探管理中心,山东东营257000

出　　处：《合成化学》2022年第12期965-971,共7页Chinese Journal of Synthetic Chemistry

基　　金：页岩油固井水泥浆体系研究(30200384-22-ZC0613-0007)。

摘　　要：以有机改性膨润土、2-丙烯酰胺-2-甲基丙磺酸(AMPS)、N,N-二甲基丙烯酰胺(DMAA)和季铵盐单体D-C_(16)Br为原料,通过原位聚合制备了一种新型水溶性疏水缔合聚合物-膨润土纳米复合材料。利用红外光谱、X-射线衍射仪对产物结构进行表征,并通过与纯共聚物AMPS/DMAA/D-C_(16)Br相比,研究了纳米黏土材料的引入对共聚物性能的影响。结果表明:在膨润土促进聚合物分子形成疏水缔合结构的作用下,具有复合插层结构的复合材料在热稳定性、耐温性、抗剪切性和黏弹性方面均优于纯聚合物,表明该纳米复合材料较纯共聚物具有良好的应用前景。In this study,organically modified bentonite,2-acrylamide-2-methylpropanesulfonic acid(AMPS),N,N-dimethylacrylamide(DMAA),and quaternary ammonium salt monomer D-C_(16)Br were prepared by in situ polymerization.A novel water-soluble hydrophobically associative polymer-bentonite nanocomposite was developed.The structure of the product was characterized by infrared spectroscopy and X-ray diffractometer,and the effect of the introduction of nanoclay material on the properties of the copolymer was studied by comparing with the pure copolymer AMPS/DMAA/D-C_(16)Br.The results show that the composites with composite intercalation structure are superior in thermal stability,temperature resistance,shear resistance and viscoelasticity to pure polymer under the effect of bentonite promoting polymer molecules to form hydrophobic association structure,indicating that the nanocomposite has better application prospects than pure copolymers.

关 键 词：聚合物纳米复合材料 纳米黏土材料 共聚物 疏水缔合 耐温性能 流变特性 

分 类 号：O62[理学—有机化学] TE256[理学—化学]