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- Water-based polyurethane (WPU) was synthesized from polyester, TDI and dimethylolpropionic acid (DMPA).The properties of aqueous polyurethane emulsion were discussed. 摘要由聚酯多元醇、2,4-甲苯二异氰酸酯、二羟甲基丙酸等合成了水性聚氨酯乳液，对乳液性能进行了研究；
- Waterborne polyurethane (WPU) emulsions were synthesized by step-growth addition polymerization from a polyether polylol, toluene diisocyanate, dimethylolpropionic acid. 摘要以甲苯二异氰酸酯、聚醚二元醇、二经甲基丙酸为主要原料通过逐步加成聚合合成水性聚氨酯(WPU)乳液。
- The high content aqueous fatty polyurethane emulsion for leather coating finish was synthesized with IPDI, butylene oxide polyether,1，4- butylene-glycol, dimethylolpropionic acid, acetone and triethylamine. 以IPDI、氢呋喃聚醚、，4-丁二醇、羟甲基丙酸、酮和三乙胺为原料合成了高含量水性脂肪族聚氨酯皮革涂饰剂乳液。
- The water-borne polyurethane (WPU) emulsion modified by epoxy resin was prepared using toluenediisocyanate (TDI), polyether (N220), dimethylolpropionic acid (DMPA), epoxy resin, hydroxypropyl acrylate (HPA) and so on. 摘要以甲苯二异氰酸酯(TDI-80)、聚醚二醇(N220)、二羟甲基丙酸(DMPA)、环氧树脂和丙烯酸羟丙酯(HPA)为主要原料，合成了环氧改性的水性聚氨酯乳液。
- The waterborne branched polyurethane(WBPU) was synthesized from toluene diisocyanates(TDI),TDB-2000,TMN-450,dimethylolpropionic acid(DMPA) and 1,4-butanediol(BDO) as raw materials under acetone reflux. 以甲苯二异氰酸酯(TD I)、聚氧化丙烯多元醇(TDB-2000和TM N-450)、双羟甲基丙酸(DM PA)和丁二醇(BDO)为原料,采用丙酮回流法合成了硬段质量分数为45%25的支化水性聚氨酯(W BPU),用FT-IR、1HNM R及DSC对所得产物进行表征。
- Dimethylolpropionic acid(DMPA) and dimethylolbutyric acid(DMBA) were introduced into polyurethanes(PU) latex as anionic internal emulsifiers and their effects on the properties of anionic polyurethane emulsion(APU) and latex film were invesigated. 分别选用二羟甲基丙酸(DMPA)和二羟甲基丁酸(DMBA)作为内乳化剂制备阴离子型聚氨酯乳液,测试研究了两种乳化剂对聚氨酯乳液各种性能的影响。
- Stable self-emulsified polyurethane-polysiloxane (PUSi) composite emulsions were prepared from 2,4-toluene diisocyanate (TDI),polypropylene glycol (PPG),polysiloxanediol (PSi),and dimethylolpropionic acid (DMPA). 用甲苯二异氰酸酯(TDI)、聚丙醚二醇(PPG)、二羟基聚硅氧烷(PSi)和二羟甲基丙酸(DMPA)合成了稳定的聚氨酯-聚硅氧烷(PUSi)自乳化复合乳液。
- Keywords anionic;self_emulsible;PU emulsion;dimethylolpropionic acid （DMPA）;dimethylolbutyric acid （DMBA）; 关键词阴离子;自乳化;聚氨酯乳液;二羟甲基丙酸;二羟甲基丁酸;
- He gave me a taste of his acid wit. 他让我尝到了他敏锐尖刻之机智的滋味。
- Acid irritates the stomach lining. 酸能刺激胃黏膜。
- Acid had pitted the surface of the silver. 酸把银器的表面腐蚀了。
- I am doing an experiment of neutralizing acid. 我在做一个中和酸的实验。
- Can Jones beat Smith? That's the acid test. 琼斯能击败史密斯吗？那是个严峻的考验。
- A salt or an ester of boric acid. 硼酸盐一种硼酸盐或硼酸酯
- She dropped acid in high school. 她高中时代服迷幻药。
- The metal is fretted with the acid. 金属被酸腐蚀。
- The chemical can behave as an acid. 这种化学制品能起酸的作用。
- The acid has eaten through the metal cover. 酸已把金属盖子蚀穿了。
- The worker's overalls were badly burned by acid. 这位工人的工作装被酸腐蚀得很厉害。
