摘要
通过脂肪酸法,选用亚油酸、邻苯二甲酸酐、间苯二甲酸、三羟甲基丙烷、二羟甲基丙酸和顺丁烯二酸酐化亚麻油合成水性醇酸树脂,用环氧树脂对其进行改性,制备出室温双重固化的环氧改性水性醇酸树脂,然后中和后加催干剂和有机胺固化。分析了顺丁烯二酸酐化亚麻油的用量、环氧树脂的种类和用量、催干剂和固化剂对产物性能的影响,从而确定了顺酐油的用量在12%～16%,环氧树脂E-20用量在15%～20%,催干剂为复合型,固化剂为三乙烯四胺,制得的环氧改性水性醇酸树脂清漆表干2 h,实干12 h,铅笔硬度达H,附着力为1级,稳定性好,耐盐雾性佳。
The waterborne alkyd resin was synthesized by fatty acid method, using linoleic acid, phthalic anhydride, isophthalic acid, trimethylolpropane, dihydroxy methyl-propionic acid and maleic anhydride linseed oil as the main materials and modified by epoxy resin to prepare dually ambient-curable epoxy modified waterborne alkyd resin, drier and organic amine were added to cure after its neutralization. The factors that affect the performance of the resin were studied, such as the dosage of maleic anhydride linseed oil, the types and dosage of epoxy resin, the types drier and curing agent. The optimal conditions were determined as follows： the dosage of maleic anhydride linseed oil was 12%- 16%, epoxy resin E-20 was 15%- 20%, the drying agent was a compound type, triethylenetetramine was chosen as curing agent. The properties of epoxy modified waterborne alkyd resin were as follows： table dry was 2 h, hard work was 12 h, the level of pencil hardness was H, the level of adhesion was 1, it had good performance of stability and salt spray resistance.
出处
《现代涂料与涂装》
CAS
2017年第1期12-16,共5页
Modern Paint & Finishing
关键词
环氧
水性醇酸树脂
室温固化
epoxy
water-borne alkyd resin
ambient-curable
作者简介
李欢（1990-），女，硕士研究生，主要研究方向为工业重防腐涂料的制备。E—mail：15071238569@163．com
