摘要
针对普通丁苯吡胶乳应用于聚酯纤维中其粘接力由于高温而下降的现象,选用羧基作为第4单体对丁苯吡胶乳进行改性.考察了羧基单体用量及表面羧基含量对胶乳性能的影响,详细研究了各相关因素对胶乳表面羧基含量的影响.结果表明:当聚合温度为75℃,体系的pH值为2时,以衣康酸为羧基单体,用量7.5%为聚合条件的优化组合.加入羧基单体使得胶乳耐热粘结力从7.3kg/cm增至16.6kg/cm;机械稳定性测试,其凝聚物质量浓度从0.060g/dL降至0.015g/dL胶乳.
Carboxylic groups used as the forth monomer were selected in synthesizing carboxylic butadiene-styrene-vinylpyridine latex in this research to finish the phenomena that the heat-resistance adhesion strength drops when conventional butadiene-styrene-vinylpyridine were applied in polyester cord in high temperature situation. The relation between properties of CPSBRL and the content of surface bond acid and carboxylic monomer ratio were investigated. Meanwhile, the direction of the distribution of carboxylic group effected by the relative factors was studied in detail. The results indicate that the optimized polymerization condition is that 7.5% IA monomer was selected with the temperature of 75 ℃ and pH value of 2. The heat-resistance adhesion strength of latex was increased from 7.3 kg/cm to 16.6 kg/cm while the amount of deposit which was the symbol of mechanical stability decreased from 0.060 to 0.015 g/dL by adding carboxylic monomer.
出处
《江南大学学报（自然科学版）》
CAS
2004年第5期521-524,共4页
Joural of Jiangnan University (Natural Science Edition)
关键词
羧基丁苯吡胶乳
羧基单体
表面羧基含量
耐热粘接力
机械稳定性
CPSBRL
carboxylic monomer
the content of surface bond acid
heat-resistance adhesion
mechanical stability
