梯度界面层对PP/nano-CaCO_3共混体系相容性与结晶形态的研究  

Study of Gradiet Interface Layer on Crystal Forms and Compatibility of PP/nano-CaCO_3 Blends

作　　者：李清江[1] LI Qing-jiang(Department of Mechanical and Electrical Engineering, Zunyi College of Vocational Technology, Zunyi 563000, Guizhou, Chin)

机构地区：[1]遵义职业技术学院机电工程系,贵州遵义563000

出　　处：《合成材料老化与应用》2017年第5期60-64,共5页Synthetic Materials Aging and Application

摘　　要：通过DSC、XRD分析和SEM观察,研究了梯度界面层对PP/nano-Ca CO_3共混体系相容性及结晶形态影响,并与单一界面层处理的纳米CaCO_3粒子进行比较,结果表明:引入梯度界面层后,改善了共混体系的相容性,增加了界面粘接力,使分散相CaCO_3的尺寸减少,分布趋向更均匀,β晶诱导效应增强,结晶温度朝高温方向移动明显,增加了12.3%。By scanning electron microscopy （ SEM） observation,differential scanning calorimetry （ DSC） and X-ray diffraction （ XRD） analysis,the gradient boundary layer effect on compatibility and crystallization behavior of PP/nano-CaCO3 blends were studied, and CaCO3 nanoparticles with a single interface treatment were com-pared. Results show that：adding gradient interface layer later,the compatibility of blends was improved,increasing the interfacial adhesion,dispersed CaCO3 size reduction,distribution more uniform,theβcrystal induction effect en-hancement,crystallization temperature in high-temperature direction significantly,increased by 12. 3%.

关 键 词：梯度界面层 PP/nano-CaCO3共混体系 相容性 结晶形态 Β晶 

分 类 号：TQ325.4[化学工程—合成树脂塑料工业]