双球状双亲纳米SiO2粒子的合成  

Synthesis of Amphiphilic Silica Nanoparticles with Double-sphere Morphology

作　　者：罗健辉[1,2] 杨洁 李远洋 贺利鹏 江波[3] LUO Jianhui;YANG Jie;LI Yuanyang;HE Lipeng;JIANG Bo(Research Institute of Petroleum Exploration&Development(RIPED),PetroChina,Beijing 100083,China;Key Laboratory of Nano Chemistry(KLNC),Petro China,Beijing 100083,China;Key Laboratory of Green Chemistry&Technology,Ministry of Education,College of Chemistry, Sichuan University,Chengdu 610064,China)

机构地区：[1]中国石油天然气股份有限公司勘探开发研究院,北京100083 [2]中国石油天然气集团公司纳米化学重点实验室,北京100083 [3]四川大学化学学院,绿色化学与技术教育部重点实验室,成都610064

出　　处：《高等学校化学学报》2018年第10期2170-2177,共8页Chemical Journal of Chinese Universities

基　　金：中国石油天然气股份有限公司科学研究与技术开发项目(批准号:2014A-1001)资助.

摘　　要：以纳米SiO_2粒子为原料,六甲基二硅氮杂烷(HMDS)和γ-缩水甘油醚氧丙基三甲氧基硅烷(KH560)分别作为亲油改性剂和亲水改性剂,采用溶胶-凝胶法制备了亲油和亲水纳米SiO_2粒子.通过亲油SiO_2和亲水SiO_2粒子表面化学键的偶合,将亲油粒子和亲水粒子偶联,制备了粒径为30 nm的双球状双亲纳米SiO_2粒子.以双球状双亲纳米SiO_2粒子作为稳定剂,制备了环己烷/水Pickering乳液,证明了双球状纳米SiO_2粒子具有较好的双亲性能.Amphiphilic silica nanoparticles with double-sphere morphology were fabricated via the assembly of hydrophobic silica nanoparticles and hydrophilic nanoparticles through chemical interaction.Silica nanopartilces prepared by the sol-gel method were modified by hexamethyldisilazane(HMDS)and 3-glycidoxy-propyltrimethoxysilane(KH560)to obtain hydrophobic silica nanoparticles and hydrophilic silica nanoparticles respectively,which were then further linked together by the chemical bond on the surface of nanoparticles.The as-prepared amphiphilic silica nanoparticles with double-sphere morphology can stabilize the cyclohexane in water Pickering emulsion,indicating the good amphiphilic property of amphiphilic silica nanoparticles with double-sphere morphology.Supported by the China National Petroleum&Gas Corporation Science and Technology Development Project(No.2014A-1001).

关 键 词：双亲纳米二氧化硅粒子 溶胶-凝胶法 Pickering乳液 

分 类 号：O611.6[理学—无机化学]