PTT/蒙脱土复合材料非等温结晶行为的研究  

Study on Nonisothermal Crystallization Behavior of Poly(trimethylene terephthalate)/Montmorillonite Composite

作　　者：李学锋[1] 王立岩[1] 王柏桐 李继新[1] 杨旭 

机构地区：[1]沈阳工业大学石油化工学院,辽宁辽阳111003 [2]沈阳市名门教育培训机构,辽宁沈阳110031 [3]辽阳石化分公司,辽宁辽阳111003

出　　处：《合成纤维》2009年第1期24-28,共5页Synthetic Fiber in China

摘　　要：采用差示扫描量热仪对熔融共混制备的聚对苯二甲酸丙二醇酯(PTT)/蒙脱土(MMT)复合材料非等温结晶行为进行了测试分析。研究结果表明:在相同的降温速率时,随着MMT含量的增加,PTT/MMT复合材料的结晶峰温向高温方向移动,结晶峰变窄,半结晶期也缩短;随着降温速率的增大,PTT/MMT复合材料的结晶峰温向低温方向移动,半结晶期变短。采用Ozawa法处理了PTT/MMT复合材料的非等温结晶过程,结果表明:MMT的加入改变了PTT的成核机理,加快了PTT的结晶速率。The nonisothermal crystallization behavior of poly （trimethylene terephthalate）（PTT） / Montemorilonite （MMT） composite prepared by melt blending was tested and analyzed by differential scanning calorimetry. The results indicated that at the same cooling rate, the erystalline peak temperature of PTT/MMT composite changed toward the direction of higher temperature, the crystalline peak became narrower,the half crystalline time became shorter with the increasement of MMT content; the crystalline peak temperature of PTT/MMT composite changed toward lower temperature and the half crystalline time became shorter with the increasement of the cooling rate. The nonisothermal crystallization process of PTT / MMT composite was dealt with Ozawa method, and the results indicated that the addition of MMT changed the nucleation mechanism of PTT and increased the crystalline rate of PTT.

关 键 词：聚对苯二甲酸丙二醇酯 蒙脱土 复合材料 非等温结晶 

分 类 号：TB332[一般工业技术—材料科学与工程]