摘要
不同羧基含量及ＮＣＯ／ＯＨ 比的阴离子聚氨酯乳液由二羟甲基丁酸（ＤＭＢＡ） 或二羟甲基丙酸（ＤＭＰＡ）、聚合物多元醇和扩链剂与甲苯二异氰酸酯（ＴＤＩ）反应，中和乳化制备。在此基础上，比较了ＤＭＢＡ 和ＤＭＰＡ 体系聚氨酯乳液的物理性能及胶膜的机械性能等，结果显示ＤＭＢＡ有其显著的特点。
Anionic PU dispersions with different COOH contents and NCO/OH rations were synthesised from polyols,toluene diisocyanate (TDI).dimethylolbutyric acid (DMBA) or dimethylolpropionic acid (DMPA)and chain extenders. Physical and mechanical properties of the PU dispersions have been compared in this paper. The results show the advantages by using DMBA versus DMPA in the parperation of anionic PU dispersion.
出处
《皮革化工》
1999年第5期19-22,共4页
Leather Chemicals
关键词
聚氨酯乳液
制革
涂饰剂
DMBA
DMPA
anionic
self_emulsible
PU emulsion
dimethylolpropionic acid (DMPA)
dimethylolbutyric acid (DMBA)
