氯化聚乙烯的含氯量与性能关系的研究

Studies of the Relationship between the Content of Chlorine in CPE and Properties of Magnetic Strip

通过元素分析和DSC测定研究了CPE的含氯量对其玻璃化转变温度、内聚能密度和溶解度参数、以及CPE/磁粉复合材料性能的影响。结果表明,含氯量越高的CPE其玻璃化转变温度也越高;与分子链间作用力有关的内聚能密度和溶解度参数也越大;而CPE/磁粉复合材料的拉伸强度和伸长率则较低,硬度较高。

The effect of the content of chlorine in CPE on its glassy change temperature, cohesive energy density, solubility parameter and the physical-mechanical properties of CPE/magnetic powder composite was studied by elementary analysis and DSC. The results showed that the higher the chlorinity, the higher the Tg temperature of CPE, as well as the cohesive energy density and solubility parameter that had relation to intermolecular force; the tensile strength and elongation of the composite remained unchanged, but the hardness was higher.