TDI改性梳状有机硅聚醚复合材料的制备及导电性能  

Study on synthesis and electrochemical property of TDI modified comb silicone polyether conductive composites

作　　者：冷翠婷[1] 李小瑞[1] 费贵强 王海花[1] 

机构地区：[1]陕西科技大学教育部轻化工助剂化学与技术重点实验室,西安710021

出　　处：《化工新型材料》2013年第6期24-26,38,共4页New Chemical Materials

基　　金：国家自然科学基金(50973057);陕西省教育厅专项项目(2010JK433);陕西科技大学学科人才培养计划项目(XSG2010014)

摘　　要：采用原位吸附聚合法,使吡咯单体在有机硅聚氨酯(TESO)乳胶表面吸附聚合制备了导电复合材料,研究了投料比、投料顺序及反应条件等对有机硅聚氨酯导电性能的影响。结果证明:吡咯用量12.5%,FeCl3、蒽醌-2-磺酸钠与吡咯摩尔比为2.2∶2.5∶1,投料顺序为TESO-吡咯-蒽醌-2-磺酸钠-FeCl3,反应温度0℃,pH=3,制备的复合材料导电效果最佳。TESO乳胶中的Si与导电聚吡咯具有协同效果,利于聚吡咯与TESO形成互通网络结构,在TESO乳胶表面或界面处形成连续核壳型导电聚合物膜层。Pyrrole was polymerized into silicone polyurethane （TESO） foam by in-situ adsorption polymerization process in order to manufacture conductive silicone polyurethane. The effects of different preparative conditions including feeding ratios and feeding sequences, reaction conditions and silicone on conductivity of the composite were studied in detail. The optimum preparative conditions were that mass ratio of monomer to TESO was 12.5%0,molar ratio of ferric chloride and anthraquinone-2-sulfonate（AQS） to pyrrole was 2.2 ： 2. 5 ., feeding sequencewas TESO-pyrrole^AQS-FeC13, reaction temperature was 0C （ice bath） and pH=3. Under these conditions the Si and polypyrrole in HESO latex had best conduc rive properties, and had more cooperativity to form interworking network structure. A continuous core-shell type conductive polymers was formed in the HESO latex surface or at the interface.

关 键 词：有机硅聚氨酯 聚吡咯 原位吸附聚合 导电性能 

分 类 号：TB332[一般工业技术—材料科学与工程]