By intercalating chain extender, the self emulsifying anionic waterborne polyurethane emulsions which have the block structure have been prepared. 通过自乳化聚合引入低分子扩链剂制得具有嵌段结构的阴离子型水性聚氨酯乳液。
The effects of different chain extenders and different contents on polyurethane emulsions from polyether and polyester have been studied. 研究了不同扩链剂及其用量对聚醚型和聚酯型聚氨酯乳液的影响。
