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主要研究了极性高聚物氯化聚乙烯和有机小分子双[(2-羟基-3-环已基-5-甲基)-苯基]甲烷(ZKF)混杂体系的粘弹性能。通过DMA分析,发现ZKF的加入使CPE/ZKF混杂材料的玻璃化转变温度升高,产生明显的抗增塑效果,同时阻尼因子tanδ值也随之增大。通过FTIR分析,发现CPE/ZKF混杂材料中ZKF和CPE之间存在氢键作用,并且随着ZKF加入比例的提高,ZKF和CPE之间的氢键作用量呈加强趋势。ZKF和CPE之间的氢键作用增强了CPE大分子之间的作用力,一方面使CPE/ZKF混杂材料的玻璃化转变温度提高,另一方面,CPE/ZKF混杂材料在玻璃化转变时所耗散的能量增加,提高了阻尼因子tanδ。通过DSC测试,发现CPE/ZKF混杂材料中CPE和ZKF具有良好的相容性,另外,通过DSC测定的Tg与DMA结果有相似的趋势,也验证了抗增塑作用的存在。通过合理控制CPE和ZKF之间的氢键作用来调整CPE/ZKF混杂材料的tanδ和Tg,为进一步开发此类高性能减振材料提供了新的思路。
The viscoelastic properties of a hybrid system of polar polymer chlorinated polyethylene and organic small molecule bis [(2-hydroxy-3-cyclohexyl-5-methyl) -phenyl] methane (ZKF) Through the DMA analysis, it was found that the addition of ZKF increased the glass transition temperature of the CPE / ZKF hybrid material, resulting in obvious anti plasticization effect, meanwhile the damping factor tan δ also increased. Through FTIR analysis, it was found that there was hydrogen bond between ZKF and CPE in CPE / ZKF hybrid materials. With the increase of ZKF addition ratio, the hydrogen bonding between ZKF and CPE tended to increase. The hydrogen bonding between ZKF and CPE enhances the interaction between CPE macromolecules. On the one hand, the glass transition temperature of CPE / ZKF hybrid materials increases. On the other hand, the CPE / ZKF hybrid materials Dissipative energy increases, increasing the damping factor tan δ. Through the DSC test, it was found that CPE and ZKF have good compatibility in CPE / ZKF hybrid materials. In addition, the Tg measured by DSC shows a similar trend with that of DMA, and the existence of anti-plasticization effect is also verified. By adjusting the hydrogen bonding between CPE and ZKF, the tan δ and Tg of CPE / ZKF hybrid materials can be adjusted properly, which provides a new idea for further development of such high performance vibration damping materials.