摘要
摘要：以新型SPPG（磺酸盐聚醚二元醇）为亲水单体，PHPA（聚邻苯二甲酸酐己二醇酯）、HDI（六亚甲基二异氰酸酯）和EDA（乙二胺）为主要原料，采用丙酮法合成了固含量超过50％的芳香族聚酯型PUD（聚氨酯分散体）胶粘剂。研究结果表明：PUD胶膜柔软性较好，其邵A硬度为35～56、断裂伸长率大于2700％；随着R[即n（-NCO）/m（-0H）]值的不断增加，Pu（聚氨酯）的玻璃化转变温度（疋）逐渐升高；PUD胶膜的热稳定性良好，其起始分解温度为300℃、500℃时已基本分解完毕；PU胶膜的耐水性较佳，其吸水率为0．85％～2．10％。
With new SPPG（sulfonate polyether glycol） as hydrophilic monomer, PHPA （polyhexanediol phthalic anhydride）, HDI （hexamethylene ＇diisocyanate） and E DA （ethylenediamine） as main raw materials, an aromatic polyester PUD （polyurethane dispersion） adhesive with solid content more than 50% was synthesized by acetone method. The research results showed that the PUD film had the good flexibility because its Shao A hardness was 35-56, and its elongation at break was more than 2 700%. The glass transition temperature （Ts） of PU （polyurethane） was gradually increased with increasing R values or molar ratios of --NCO to --OH. The PUD film had the good thermal stability because its initial decomposition temperature was 300 ℃, and its decomposition was mainly finished at 500 ℃. The PUD film had the good water resistance because its water absorption was 0.85%-2.10%.
出处
《中国胶粘剂》
CAS
北大核心
2015年第4期27-31,共5页
China Adhesives
基金
广东省重大科技专项计划项目(2012A080105011)
关键词
胶粘剂
芳香族聚酯
聚氨酯
聚氨酯分散体
高固含量
热稳定性
耐水性
adhesive
aromatic polyester
polyurethane （PU）
polyurethane dispersion （PUD）
high solid content
thermal stability
water resistance
