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首页> 外文期刊>Journal of Applied Polymer Science >Effects of interfacial adhesion on properties of polypropylene/Wollastonite composites
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Effects of interfacial adhesion on properties of polypropylene/Wollastonite composites

机译：界面粘合对聚丙烯/硅灰石复合材料性能的影响

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Wollastonite reinforced polypropylene (PP/CaSiO3) composites were prepared by melt extrusion. A silane coupling agent and a maleic anhydride grafted PP (PP-g-MA) were used to increase the interfacial adhesion between the filler and the matrix. The increased adhesion observed by scanning electron microscopy (SEM) resulted in improved mechanical properties. A model was applied to describe the relationship between the interfacial adhesion and tensile properties of PP/CaSiO3 composites. There is stronger interfacial adhesion between silane-treated CaSiO3 and polymer matrix containing PP-g-MA as a modifier. Results of dynamic mechanical thermal analysis (DMTA) showed that stronger interfacial adhesion led to higher storage modulus. The influence of CaSiO3 particles on the crystallization of PP was studied by using differential scanning calorimetry (DSC). The introduction of CaSiO3 particles does not affect the crystallization temperature and crystallinity of PP matrix significantly. (c) 2007 Wiley Periodicals, Inc.
机译：通过熔融挤出制备硅灰石增强聚丙烯（PP / CaSiO3）复合材料。使用硅烷偶联剂和马来酸酐接枝的PP（PP-g-MA）来提高填料与基体之间的界面粘合力。通过扫描电子显微镜（SEM）观察到的增加的粘附力导致改善的机械性能。应用模型描述了PP / CaSiO3复合材料的界面粘合性与拉伸性能之间的关系。硅烷处理的CaSiO3与以PP-g-MA为改性剂的聚合物基质之间的界面粘合力更强。动态机械热分析（DMTA）的结果表明，较强的界面粘合性导致较高的储能模量。用差示扫描量热法（DSC）研究了CaSiO3颗粒对PP结晶的影响。 CaSiO3颗粒的引入不会显着影响PP基体的结晶温度和结晶度。 （c）2007年Wiley Periodicals，Inc.

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