异氰酸
- 与 异氰酸 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Examples of monomers which have on average not less than 3 cross-linking groups per molecule include for example tri, tetra, penta and hexa functional isocyanates, alcohols, amines, epoxys,acrylates, siloxanes and imines.
其中的单体平均不超过3交叉连接不到每分子团体有例子包括,例如三,四,五溴和六功能异氰酸酯,醇,胺,epoxys,丙烯酸酯,硅氧烷和亚胺。
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In the system droplets in microns are first formed by emulsifying an organic phase consisting of a core material (n- hexadecane) and an oil- soluble reactive monomer,toluene- 2,4- diisocyanate,in an aqueous phase.By adding water- soluble reactive monomer,diamine,monomers TDI and diamine react with each other at the interface of micelles to become a shell.
在含乳化剂的水溶液中,将溶有芯材正十六烷的有机相乳化成微米级油性液滴,随后加入的水溶性单体二胺与甲苯 2, 4-二异氰酸酯在胶束界面相互反应形成囊壁。
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In the reactions of IC with wood, the reaction rate significantly influenced by the tridimentional inerratic structure of cellulose, while wooden hydroxy has less effect.
在木材与异氰酸酯反应过程中,纤维素的立体规整性结构对于反应进行的快慢起主要作用,羟基的作用则相对较弱。
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A salt or ester of isocyanic acid .
异氰酸形成的一种盐或酯。
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Both IR analysis and TG analysis shows that carbon fiber surface has been grafted by isocyanic ester and caprolactam.
红外和热重分析都表明,碳纤维表面已接枝上异氰酸酯和己内酰胺。
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Isocyanic acid plays an important role in combustion and atmospheric chemistry. It is a potential agent for effectually eliminating nitrogen oxides in exhaust gas streams.
异氰酸在燃烧和大气化学中起着重要的作用,它可以从燃烧的废气中快速除去有毒的化合物。
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Keywords: methyl carbamate, isocyanic acid ester, polyurethane, green chemical technology, dimethyl carbonate
中文关键词:氨基甲酸甲酯;异氰酸酯;聚氨酯;绿色化工;碳酸二甲酯
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The reaction path of isocyanic acid with carbon-hydrogen radicals CH, CH_2 and CH_3 have been investigated by using UMP2 method at 6-311 g level. The geometries of the stationary points and the changes of molecular structure along the reaction path are discussed.
在UMP2/6-311计算水平上,计算并讨论了碳氢自由基和异氰酸发生氢转移反应位能面上驻点的结构和分子结构变化,并依据 UMP2的优化构型,进一步采用UQCISD方法对反应途径上的驻点进行了单点能量计算。
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This project quests for a new route for synthesizing polyurethane not only with mild reaction conditions but also without environmental pollution basing on the fact that virulent phosgene used in the industrial process to produce isocyanic acid ester has badly been polluting the environment at present. And this project belongs to the research in basic application science.
本项目基于目前工业生产异氰酸酯过程中采用剧毒光气对环境造成严重污染这一事实,探索出了一种反应条件温和、无环境污染的新的聚氨酯合成路线,属于应用基础研究。
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This project mainly exploratorily studied that polyurethane was produced via condensation reaction between polyhydroxylated compounds and methyl carbamate, which was firstly synthesized by dimethyl carbonate and amines. The process is a green route because it turns away the synthesis and the utilization of toxical isocyanic acid ester.
本项目主要探索性地研究了碳酸二甲酯和胺类化合物反应生成氨基甲酸甲酯,然后氨基甲酸甲酯再和多羟基化合物直接反应得到聚氨酯材料,从而避免了异氰酸酯的合成和使用。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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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。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力