模板法制备多孔聚二甲基硅氧烷及其吸油性能研究  

Fabrication of porous polydimethylsiloxane by template method for oil-absorption application

作　　者：刘俊[1] 常梦洁[1] 宋丹阳[1] 董洁[1] 周甜[1] 何金星[1] 薛腾飞[1] 

机构地区：[1]西安科技大学材料科学与工程学院,西安710054

出　　处：《化工新型材料》2016年第5期234-236,共3页New Chemical Materials

基　　金：国家自然科学基金(21403165;21501140);陕西省自然科学基础研究计划项目(2015JQ2047);陕西省教育厅项目(15JK1453;14JK1468);西安科技大学博士启动金(2014QDJ052;2014QDJ051);西安科技大学创新创业(201510704036)

摘　　要：以糖颗粒为模板,聚二甲基硅氧烷预聚体为前驱体,简便地制备了疏水亲油性质的多孔聚二甲基硅氧烷（PDMS）吸油材料,并进行了形貌、接触角和吸油性能测试。结果表明,实验制备的多孔PDMS具有明显的三维孔洞结构,且表现出优良的疏水亲油性能和吸油能力。对不同的有机液体,多孔PDMS能够吸收达自身重量5~44倍的有机物,其中对氯仿的吸收能力最强。此外,多孔PDMS在重复使用20次后仍能保持稳定的吸油能力,表明其可循环利用,具有良好的应用前景。Porous polydimethylsiloxane（PDMS）with hydrophobic and lipophilic property was fabricated by template method from sugar particles and PDMS prepolymer.The morphology,water contact angle and oil absorbent ability of the obtained PDMS were measured.It was indicated that the obtained PDMS structures had obvious 3D porous morphology,good hydrophobicity and oil absorbent capacity.The porous PDMS has absorbent capacities of 5~44times of their own weight for different organic solvent.Particularly,the PDMS shows the maximum absorbent capacity to chloroform.Moreover,the absorption capacity of the porous PDMS did not deteriorate after it was reused for 20 times,so the porous PDMS has excellent recyclability for future application.

关 键 词：聚二甲基硅氧烷 模板法 疏水亲油 油水分离 

分 类 号：O634.41[理学—高分子化学]