异氰酸

In this paper ,we introduced the preparation of UV-curable waterborne urethaneacrylate ,also the affecting factors of soft segment , isocyanate and the content of ionic chain extender are discussed.

本文介绍了UV固化聚氨酯丙烯酸分散体的制备和性能；讨论了软段分子量，异氰酸酯种类，和亲水基团含量等对性能的影响。

It shows that isocyanate distributes mainly on the cellulose surface.

最后论文利用DSC、FTIR和ESCA等研究了异氰酸酯与不同含水率纤维素的反应规律。

In this paper, the dependence of the yields, intrinsic viscosity and their distribution as well as thermal stability of the terpolymers on the reaction conditions and isocyanate content were described.

并考察了反应条件，异氰酸酯加入量对共聚产率及共聚物的特性粘数、分子量分布及热稳定性的影响。

The curing reaction of cationic polyacry-lates with blocked isocyanate s and amino resin was studied.

合成了阳离子型聚丙烯酸酯树脂，并分别用封闭型异氰酸酯及氨基树脂对其交联固化。

Flexible polyurethanes are usually blown up using introduced carbon dioxide or carbon dioxide generated by the reaction between water and isocyanate.

灵活的聚氨酯通常炸毁使用被介绍的二氧化碳或二氧化碳由反应引起在水和异氰酸盐之间。

This was an economical method to prepare isoproturon in high yield and good purity, avoiding the shortcoming of the isocyanate mute.

避免了异氰酸酯路线的种种缺点，具有收率高、含量高、成本低的特点。

The Company produced for each grade polyester molecular structure, molecular weight, and the disproportion of the response of isocyanate and other aspects of performance for the full study, various brands of products have corresponding polyester counterparts to ensure that the products are Excellent physical and chemical properties, while in the production process are of excellent performance.

本公司生产的每牌号聚酯分子结构，分子量，歧化度以及与异氰酸酯的反应性能性等方面都进行了充分的研究，各类制品都有相应牌号的聚酯对应，以保证制品有优异的物理及化学性能，同时在生产过程中有优异工艺性能。

There have been situations when large amounts of pollutants, combined with particular meteorological conditions, have led to large numbers of directly attributable deaths: for example, in Bhopal, India, in December 1984, a release of methyl isocyanate from a pesticide plant killed about 2500 people.

这样的情况经常发生。在特殊气象条件下的大量污染物直接导致了死亡。例如，1984年12月，在印度，植物杀虫剂释放出来的甲基异氰酸盐导致了2500多人的死亡。

Applying MDI ,thc bond strength of plywood achieve national standard when the moisture content of Populus simoniicarr and Liquidambar formosana Hancemoisture are 12% and 20%.With same material and technics ,bond strength of parallel lay-up is higher than upright lay-up.

而当采用异氰酸酯做胶粘剂时，杨木胶合板的含水率在12%，枫木胶合板在含水率20%时达到国家标准要求；⑤材料和工艺相同时，顺纹组坯时的胶合强度高于垂直纹理组坯时的胶合强度。

The bond strength of plywood using MUF resin in which content of melamine was beyond 3% did not satisfy to the requirement of type Ⅱ plywood (0.7 MPa).

7MPa的标准。在树脂固化时，加入 1 %的异氰酸酯类固化剂可以在提高胶合性能的同时降低甲醛释放量。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。