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- Aqueous PUA dispersion based on aromatic isocyanate was prepared with blocked prepolymer.The blocking agent with enol keto stucture( BAEK) .diethyl malonate( DEM) , was used to prepare the dispersion. 采用具有烯醇结构的封端剂,用反应活性较高的芳香族异氰酸酯制备了聚氨酯-丙烯酸酯(PUA)水分散液。
- The results show that amine content increases with ageing time and polyurethanes based on aromatic isocyanate has much better ageing resistance than ones based on aliphatic isocyanate. 芳香族异氰酸酯制成的聚氨酯比脂肪族异氰酸酯的耐老化性能好得多。
- The deblocking studies of blocked isocyanates reveal that the aromatic isocyanates undergo deblocking easily compared to aliphatic isocyanates. 对封闭异氰酸酯的反块效应的研究表明,芳香异氰酸酯进行反块容易脂肪族异氰酸酯相比。
- A series of aromatic isocyanates were synthesized by adding dropwise corresponding arylamines into the solution of bis(trichloromethyl) carbonate (BTC) and refluxing. 将伯芳胺或其溶液滴加到双(三氯甲基)碳酸酯溶液中,经回流反应合成了相应的芳基异氰酸酯。
- The blocking reaction of N-methylaniline with aromatic isocyanates and aromatic polyisocyanates occur faster when compared to the aliphatic isocyanates. 对N封闭反应与芳香族异氰酸酯和芳香族聚异氰酸酯甲基苯胺发生得更快相比,脂肪族异氰酸酯。
- From the areas of the selection of raw materials,UV shield and coupling agent,the characteristics of aromatic isocyanates type WPU coatings using in PVC gloves were discussed. 简述了国内PVC手套用水性聚氨酯(WPU)涂饰剂的现状,重点从原料的选择、紫外光屏蔽剂和偶联剂等几方面讨论了自制PVC手套用芳香族异氰酸酯WPU涂饰剂的特点。
- The drink was mixed with aromatic spices. 饮料中带有香料。
- Aromatic herbs are often used in cooking. 芳草常用於烹调。
- aromatic isocyanate 芳香族异氰酸酯
- Test Method for Polyurethane Raw Materials: Determination of the Isocyanate Content of Aromatic Isocyanates 聚氨酯原材料的试验方法:芳香族异氰酸酯中异氰酸酯含量的测定
- It has an agreeable aromatic smell. 它有一种好闻的香味。
- The hard, aromatic seed of this tree, used as a spice when grated or ground. 肉豆蔻种子这种树硬而带香味的种子,磨碎或碾碎后作香料用
- I was fascinated by the aromatic smell of roses. 我被玫瑰的香气陶醉了。
- Old World genus of frequently aromatic herbs. 一般芬芳的草本旧大陆的属。
- A series of terminated isocyanate oligomers (TIO) were synthesized from poly(ethylene glycol), aromatic diisocyanate, ethanol, isopropanol and phenol. 合成了一系列由聚乙二醇、芳香族二异氰酸酯以及乙醇、异丙醇、苯酚组成的封闭型异氰酸酯齐聚物(TIO);
- They are synthesized by the reaction of a polyester polyol, or polyether polyol, with an aromatic or aliphatic isocyanate. 他们由一种聚酯多羟基化合物或聚醚多羟基化合物与另一种芳香或脂肪族异氰酸盐的反应而合成。
- Cantrell and Cochrane's Ginger Ale (Aromatic). 坎特雷尔与科克伦姜麦酒(加了香料的)。
- Direct R&D of "isocyanate chlorosulfonyl" project in 2002. 2002年负责“氯磺酰异氰酸酯”项目的研发工作。
- Pyran is not aromatic, but the phrylium ion is. 吡喃不是芳香的,但眬英嗡离子是。
- And experiments proved that the reaction rules of isocyan... 实验证明室温下异氰酸酯与水的反应可以使用准二级方程描述。