无溶剂水性聚氨酯人造革粘合剂的制备与研究  

Synthesis And Properties of Solvent-free Water-Polyurethane For Synthetic Leather Adhesive

作　　者：陈炜[1] 徐弋 刘翔[1] 陈新[1] 

机构地区：[1]丽水学院,浙江丽水323000 [2]浙江耐和实业有限公司,浙江丽水323000

出　　处：《广州化工》2014年第2期50-53,共4页GuangZhou Chemical Industry

基　　金：丽水市科技计划项目(项目编号:20120307);浙江省大学生科技创新活动计划暨新苗人才计划(项目编号:2013R429022)

摘　　要：采用一步法制备出无溶剂水性聚氨酯,对比了软段种类、软段分子量以及亲水扩链剂对无溶剂水性聚氨酯的乳液粒径、粘度、稳定性的影响;并将无溶剂水性聚氨酯用于人造革粘合涂层,对粘合涂层的剥离强度、耐水值、耐增塑剂值以及耐碱值进行检测,结果显示:采用PBA-2000为软段、DMBA为亲水基团一步法制备的无溶剂水性聚氨酯作为人造革粘合剂时综合性能最好;其剥离强度为21.3 N·25 mm-1,耐水值为87%,耐增塑剂值为69%,耐碱值为78%。One - pot reaction was used in the preparation of a series of solvent - free waterborne polyurethane. The influence of soft segment, the molecular weight of soft segment and hydrophilic chain extender to viscosity, the average size of emulsoid particle and stability was compared. The solvent - free waterborne polyurethane were applied on synthetic leather adhesive coating. The peel strength, the anti - water penetration force and the anti - plasticizer penetration force and the anti - alkali penetration force were studied, the results showed that the overall performance of solvent - free waterborne polyurethane with PBA -2000 as the soft segment and DMBA as hydrophilic radical was best, The peel strength was 21.3 N . 25 mm^-1, the anti -water penetration force was 87%, the anti -plasticizer penetration force was 69%, the anti - alkali penetration force was 78%.

关 键 词：无溶剂 水性聚氨酯 粘合剂 人造革 

分 类 号：TQ322[化学工程—合成树脂塑料工业]