All Plant Oil Derived Epoxy Thermosets with Excellent Comprehensive Properties
All Plant Oil Derived Epoxy Thermosets with Excellent Comprehensive Properties
复制标题
具有优异综合性能的全植物油衍生环氧热固性材料
DOI：
10.1021/acs.macromol.7b01068
复制
发表时间：
2017-08-08
期刊：
影响因子：
5.5
通讯作者：
Zeng, Jian-Bing
中科院分区：
文献类型：
--
作者：
Jian, Xin-Yi;An, Xu-Pei;Zeng, Jian-Bing
环氧化植物油（EPO）热固性材料由于其短、脆、无定形的交联结构而表现出较差的性能。为了制备全生物基高性能EPO热固性材料，我们以蓖麻油衍生单体己二酸和十亚甲基二胺为原料合成端羧基聚酰胺1010 （NYL）低聚物，并利用NYL固化环氧大豆油（ESO），通过无催化剂固化法制备全植物油衍生环氧热固性材料。化学流变学研究表明，固化速率随NYL链长的增加而降低。随着NYL链长度的增加，环氧热固性树脂的交联密度降低，而结晶性增强，导致热固性树脂的抗拉强度、杨氏模量和断裂伸长率显著提高，与己二酸固化的ESO热固性树脂相比，这些参数分别提高了59倍、145倍和18倍。熔化温度和耐热性…
Epoxidized plant oil (EPO) thermosets usually exhibit poor performance due to the short, brittle, and amorphous cross-link structures. To fabricate fully biobased high performance EPO thermoset, we synthesized dicarboxyl-terminated polyamide1010 (NYL) oligomers from castor oil derived monomers, i.e., sebacic acid and decamethylene diamine, and used the NYL to cure epoxidized soybean oil (ESO) to fabricate all plant oil derived epoxy thermoset through a catalyst-free curing method. Chemorheological study indicated that the curing rate decreases with increasing NYL chain length. The cross-link density of the epoxy thermoset decreases while the crystallization enhances with increasing NYL chain length, which results in drastic enhancement in tensile strength, Young’s modulus, and elongation at break of the resultant thermosets, enabling those parameters to enhance by up to 59, 145, and 18 times, respectively, compared to sebacic acid cured ESO thermoset. The melting temperature and thus the heat resistance o...