聚苯乙烯-丙烯酸复合粒子/乙二醇体系的流变性能研究  

Study on rheological property for polystyrene & acrylic acid composite particle/ethylene glycol system

作　　者：宋凯杰[1] 万红敬[1] 黄红军[1] 王晓梅[1] 

机构地区：[1]军械工程学院理化教研室,石家庄050003

出　　处：《化工新型材料》2017年第11期143-146,共4页New Chemical Materials

基　　金：国家自然科学基金(51103178)

摘　　要：通过无皂乳液聚合法制备了聚苯乙烯-丙烯酸(PS-AA)纳米粒子,产物粒子呈球状,且具有核壳结构;通过高能球磨法将其分散在乙二醇中,得到一种新型有机高分子体系的剪切增稠液(STF),分别采用动态流变仪和扩散波谱仪(Diffusing Wave Spectroscopy,DWS)对其机械流变性能和微流变性能进行了测试,经对比分析,双层论证了体系剪切增稠的特性。The polystyrene acrylic acid（PS-AA）nanoparticles were prepared by soap free emulsion polymerization（PS-AA）.The produced nanoparticles was spherical and had the core-shell structure.The experiment used high-energy ball milling method,the nanoparticles were dispersed in ethylene glycol,and got a new organic polymer shear thickening fluid（STF）.Using dynamic rheometer and diffusing wave spectroscopy（DWS）respectively,the mechanical rheological properties and micro rheology of shear thickening fluid were tested.The characteristics of double shear thickening system was demonstrated.

关 键 词：剪切增稠 扩散波谱仪 流变性能 

分 类 号：O631.2[理学—高分子化学]