文献类型：期刊文献

中文题名：聚三唑涂层改性及其性能研究

英文题名：Modification of Polytriazole Coatings and Investigations on Their Performances

作者：舒达[1];万里强[1];李圆梦[1];朱帅帅[1];黄发荣[1]

机构：[1]华东理工大学特种功能高分子材料及相关技术教育部重点实验室,上海200237

年份：2019

卷号：32

期号：2

起止页码：246

中文期刊名：功能高分子学报

外文期刊名：Journal of Functional Polymers

收录：CSTPCD;;北大核心:【北大核心2017】；CSCD:【CSCD_E2019_2020】；

基金：中央高校基本科研业务费专项资金资助(222201717001)

语种：中文

中文关键词：改性PTA涂层;热性能;力学性能;耐盐雾性能;防腐蚀性能

外文关键词：modified polytriazole coating;thermal property;mechanical property;salt spray resistance;corrosion resistance

摘要：合成了第三单体双酚A二炔丙基醚(BPA)和叠氮化双酚A二缩水甘油醚(DGEBA-N_3),采用BPA和DGEBA-N_3对聚三唑(PTA)涂层进行改性,分别得到改性涂层B-PTA和D-PTA。利用差示扫描量热法、傅里叶红外光谱、动态力学热分析和热重分析对B-PTA和D-PTA的固化行为、热性能进行考察,同时考察了它们在25℃时的力学性能和防腐蚀性能。结果表明:与涂层PTA相比,B-PTA和D-PTA的玻璃化转变温度降低,热稳定性基本不变;剪切强度、附着力、抗冲击性和柔韧性均有所提高,硬度基本不变;涂层B-PTA的防腐蚀性能在盐雾箱、10%(质量分数,余同)H_2SO_4溶液和5%NaCl溶液中均有所增强,在10%NaOH溶液中减弱;涂层D-PTA在盐雾箱、10%H_2SO_4溶液、10%NaOH溶液和5%NaCl溶液中防腐蚀性能均提高。
The third monomer dipropargyl bisphenol A(BPA)and bisphenol A bisazide(DGEBA-N3)were synthesized,and were used to modify the polytriazole PTA coatings,ultimately leading to modified coatings of B-PTA and D-PTA.The curing process and thermal properties of the coatings of B-PTA and D-PTA were studied by differential scanning calorimetry(DSC),FT-IR,dynamic mechanical thermal analyses(DMA),and thermogravimetric analysis(TGA).Meanwhile,mechanical properties and anti-corrosion performance were investigated at 25℃.The results showed that the glass transition temperature(Tg)of the coatings of B-PTA and D-PTA was reduced,and the thermal stability(Td5)was basically unchanged in comparison with the coatings of PTA.The shear strength,adhesive force,impact resistance and flexibility were increased,while the hardness was basically unchanged.Moreover,corrosion resistance of the coatings of B-PTA was improved in salt spray box,10%H2SO4 solution and 5%NaCl solution,and reduced in 10%NaOH solution;and corrosion resistance of the coatings of D-PTA was improved in salt spray box,10%H2SO4 solution,5%NaCl solution and 10%NaOH solution.