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).
作者
罗健辉
杨洁
李远洋
贺利鹏
江波
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)
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
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.
