苯酚胺类催化剂HP-30对PU硬泡结构与性能的影响  

Research on the effect of phenol amine catalyst HP-30 to the structure and property of PU rigid foams

作　　者：蒋文俊[1,2,3] 姚其胜 范仲勇[2] 侯一斌 陆企亭 

机构地区：[1]上海康达化工新材料股份有限公司,上海201201 [2]复旦大学材料科学系,上海200433 [3]上海胶粘剂工程技术研究中心,上海201201

出　　处：《功能材料》2013年第16期2333-2337,共5页Journal of Functional Materials

基　　金：浦东新区科技发展基金资助项目(298.10X-11);上海市科学技术委员会资助项目(11DZ2283500)

摘　　要：选用聚醚多元醇GR-835G、多亚甲基多苯基多异氰酸酯PM-200作为主要原料,苯酚胺类催化剂HP-30作为三聚催化剂,H2O作为发泡剂,成功制备出具有高压缩性能的且表观密度为60kg/m3的PU硬泡。结果表明,HP-30不仅能起到催化作用,还能些许程度地起到发泡剂的作用。随着HP-30用量的增加,发泡体系的乳白时间、上升时间及凝胶时间均不断缩短,泡沫体的表观密度则呈先增大后减小再增大的趋势;若此时需得到相同表观密度的泡沫体,可适当改变发泡剂H2O的用量,且6%(质量分数)以内H2O量的变化对发泡时间及体系粘度几乎无影响。HP-30用量的增加,有助于改善60g/m3泡沫体的压缩性能,且当HP-30的用量为13pphp时,泡沫体的压缩强度与压缩模量分别能达0.772和30.0MPa。此外,还探讨了HP-30的作用机理。In this work, the 60kg/m3 PU rigid foam with high compression performance has been successfully prepared with polyether polyol GR-835G and polymethylene polyphenylisocyanate PM-200 as main raw materi- als, phenol amine catalyst HP-30 as the catalyst,and H2O as the blowing agent. The results show that, HP-30 can play important roles as not only the trimerization catalyst, but also the blowing agent. The cream time, rise time and gel time of the foaming systems, become shorter with more HP-30, while the apparent densities of the foams have a trend with bigger then smaller, and bigger finally. The HzO dosages need be changed for maintai- ning the same apparent density with the increase of the HP-30 dosages. However, there was almost no effect to the foaming time and the voscosity of the foaming system with H2O dosage changed under 6wt%. The com- pression properties of 60kg/m3 foams can be improved with the HP-30 dosages increased. When the HP-30 dos- age is 13pphp, the compressive strength and compressive modulus of the PU rigid foam are 0. 772MPa, 30.0 MPa, respectively. In addition, the possible mechanism of HP-30 has also been disscussed.

关 键 词：PU硬泡 苯酚胺类催化剂 H2O 催化 发泡时间 压缩性能 

分 类 号：O631.5[理学—高分子化学]