聚乙二醇作致孔剂对聚氨酯微孔膜通透性能的影响  

Influence of Polyethylene Glycol Porogen on Permeability of Polyurethane Microporous Films

作　　者：张玉洲[1] 王全杰[1,2] 杨旸[3] 郭继波[3] 刘雪华[3] 

机构地区：[1]陕西科技大学资源与环境学院,陕西西安710021 [2]国家制革技术研究推广中心,烟台264003 [3]烟台大学,山东烟台264005

出　　处：《中国皮革》2011年第13期43-47,共5页China Leather

基　　金：山东省科技攻关项目(2008GG10003020);陕西科技大学研究生创新基金资助

摘　　要：探讨了3种不同分子质量的聚乙二醇用量,对聚氨酯微孔膜透湿性和力学性能的影响。通过对聚氨酯微孔膜的透湿性能、力学性能、吸湿性能、孔隙率以及扫描电镜等表征手段的分析,结果表明:聚乙二醇分子质量为1000、加入量为3%时,透湿量和孔隙率都最高,分别为1407.38g·mm·m-2·24h-1和7.55%;加入量为2.5%时,聚氨酯微孔膜的透湿量和拉伸强度都比较高。The dosage of three different molecular weight polyethylene glycols which affected the moisture permeability and mechanical properties of polyurethane microporous films was studied based on the former research. The moisture permeability, mechanical properties of polyurethane microporous films, hygroscopic property, porosity were determined and SEM was used for analysis. The results indicate that the optimum condition is as follows ： the dosage of polyethylene glycol is 3%, the molecular weight of polyethylene glycol is 1000. ,The moisture permeability and the porosity of polyurethane microporous film are highest, which are I 407.38g · mm · m^-2 · 24h ^-1 and 7.55% respectively. And when the dosage of polyethylene glycol is 2.5%, the moisture permeability and tensile strength of polyurethane microporous film are both high.

关 键 词：聚氨酯微孔膜 聚乙二醇 通透性能 湿法成膜 

分 类 号：TS565[轻工技术与工程—皮革化学与工程]