高成膜强度阴离子聚氨酯水乳液的研制与生产  

Preparation of Anion PU Emulsion Featuring Higher Film Strength

作　　者：郑玉 于春 丛宏林 

机构地区：[1]烟台万华合成革集团科技公司,264002

出　　处：《聚氨酯工业》1997年第2期27-29,共3页Polyurethane Industry

摘　　要：讨论了影响阴离于聚氨酯水乳液生产和物理性能的几个因素，得出以下结论：合成工艺为预聚、中和、乳化、扩链、NCO／OH值1．3至1．8，羧基含量≥1．6％和交联剂用量1．5％至2．5％时，可以制备稳定的和具有较高膜强度的聚氨酯水乳液。Several factors effecting the physical properties and production of anion PU aquoemulsion are discussed, PU aquo-emulsions with storing stability and higher strength was prepared by properly processes of prepolymerizing, neutralizing, emulsifing and chain-extending. In this preparation,NCO/OH ratio is 1. 3~ 1. 8, carboxyl content is 1. 6% or more and amount of crosslinking agent is 1. 5 % ~2. 5 % .

关 键 词：聚氨酯水乳液 阴离子 强度 乳液聚合 成膜 

分 类 号：TQ323.806[化学工程—合成树脂塑料工业]