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讨论了用二羟甲基丙酸制备阴离子聚氨酯乳液，二羟甲基丙酸的量，反应程度，扩链剂的用量对乳液的稳定性、粒径大小和分布及粒子形态的影响。
The effects of the amount of dimethylolpropionic acid, the degree of reaction and the amount of chain extender on the stability, particle size, distribution and particle morphology of the anionic polyurethane emulsion prepared with dimethylolpropionic acid were discussed.