NOVEL PREPARATION AND PROPERTIES OF NANOCOMPOSITEPOLYMER ELECTROLYTES
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摘要: 以含有纳米SiO2 的聚乙二醇二丙烯酸酯( PEGDA) 为单体, 加入液态电解质, 通过紫外光辐射固化制备了凝胶态纳米复合聚合物电解质(NCPE) 。含有纳米SiO2 的PEGDA 单体是以水性硅溶胶为原料, 通过一个溶剂交换过程制备的, 与此同时纳米SiO2 的表面通过加入甲基丙烯酰氧丙基三甲氧基硅烷(MAPTMS) 进行改性, 使其表面具有可以参与光固化的丙烯酸酯基团。与用不含纳米粒子的PEGDA 单体制备的凝胶态聚合物电解质相比, 纳米复合聚合物电解质的电导率更高, 尤其是电化学稳定性和界面稳定性有明显提高。
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关键词:
- 纳米复合聚合物电解质 /
- 纳米SiO2 /
- 聚乙二醇二丙烯酸酯( PEGDA) /
- 紫外光辐射固化 /
- 水性硅溶胶 /
- 凝胶态聚合物电解质
Abstract: The gel nanocomposite polymer elect rolyte (NCPE) was prepared by UV radiation curing based on poly(ethylene glycol) diacrylate ( PEGDA) monomer containing nanosize SiO2 in the presence of liquid elect rolyte. ThePEGDA monomer containing nanosize SiO2 was synthesized using aqueous colloidal silica as one of starting materialsthrough a solvent exchange process and the partial surface groups of SiO2 were modified into acrylic group during theprocedure by employing methacryloxypropyl t rimethoxysilane (MAPTMS) , which made the nanosize SiO2 havingthe UV-curable acrylate groups. Compared with the gel polymer elect rolyte based on PEGDA without nanosize filler , the ionic conductivity is higher and the improvement s in the elect rochemical stability and interfacial stability arenoticeable for the gel NCPE. -
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