聚丙烯及其复合材料的非等温结晶动力学研究  

Kinetics of Non-isothermal Crystallization for PP and its Compound Material

作　　者：段攀峰[1,2] 刘先龙[1,2] 白琪俊 伍玉娇[1,3] 

机构地区：[1]贵州大学材料与冶金学院,贵州贵阳550025 [2]贵州理工学院材料与冶金工程学院,贵州贵阳550003 [3]国家复合改性聚合物材料工程技术研究中心,贵州贵阳550014

出　　处：《上海塑料》2017年第1期11-17,共7页Shanghai Plastics

基　　金：黔科合人才团队(2015)4008号;贵州理工学院高层次人才科研启动项目(xjgc20131205)

摘　　要：利用差示扫描量热法(DSC)研究了聚丙烯(PP)及其复合材料的非等温结晶动力学行为,并采用Jeziorny法、Ozawa法和Mo法对数据进行动力学分析,通过Kissinger法和Takhor法求得迁移活化能。结果表明,利用Jeziorny方法与Mo方法研究样品的非等温结晶动力学较为理想,而Ozawa法则受到温度影响较大。利用Kissinger法和Takhor法研究表明,AO加入基体后,活化能由272.03kJ/mol降低至218.93kJ/mol,降低了19.5个百分点,而通过插层方法引入AO,活化能变化不大。Non-isothermal crystallization behavior of polypropylene （PP） and its compound material was studied by differential scanning calorimetry （DSC）, Jeziorny, Ozawa and Mo method were used to analyze the data of DSC, and activation energies of chain transfer have been calculated by Kissinger and Takhor method. The results show that Jeziorny and Mo method can describe non-isothermal crystallization process very well,but Ozawa, law is affected by temperature is larger. The results of Kissinger and Takhor method showed that the activation energy of AO was reduced from 272.03 kJ/mol to 218.93 kJ/mol, and reduced by 19.5 percentage points, while the activation energy of AO was not changed by intercalation method.

关 键 词：聚丙烯 复合材料 异相成核 非等温结晶 结晶动力学 

分 类 号：TB33[一般工业技术—材料科学与工程] TQ325.14[化学工程—合成树脂塑料工业]