摘要
以正硅酸乙酯 (TEOS) ,甲基丙烯酸甲酯 (MMA)为主要原料 ,甲基丙烯酸 β 羟丙酯为活性单体 ,溶胶 凝胶法制备PMMA/ SiO2 杂化准凝胶 ,并以其为填充物对PP进行复合改性。采用FT IR、XRD、SEM、PLM等对材料的结构进行分析 ,同时对其力学性能进行测试 ,研究了复合材料力学性能与组成、结构间的关系。研究发现 ,PMMA/ SiO2 杂化材料能诱导PP基体中 β晶型的生成 ,并使PP球晶细化。PP SiO2 杂化复合材料 (PSH)中SiO2 含量为 2 %(wt)时 ,缺口冲击强度较纯PP提高 81 %。
Tetraethoxysilane (TEOS), methyl methacrylate (MMA) and 2-hydroxy propyl methacrylate (HPMA) were used to prepare SiO 2/PMMA hybrid quasi-gels by sol-gel method. The hybrid quasi-gels were used to modify PP as filler. FT-IR、XRD、SEM and PLM were employed to study the structure of PP/SiO 2 hybrid nanocomposites and the relationships among property, structure and composition of these composites were studied at the same time. The results show that PMMA/SiO 2 hybrid quasi-gel can induce PP to form β crystal and minimize the spherulite size in PP. When the content of SiO 2 in PP/SiO 2 hybrid nanocomposite (PSH) is 2%(wt), the toughness strength is increased by 81% than pure PP.
出处
《高分子通报》
CAS
CSCD
2005年第2期93-96,共4页
Polymer Bulletin
基金
国家自然科学基金 (2 0 1 74 0 0 7)
