异氰酸

  • 网络Isocyanate;MDI;isocyanic acid;HNCO
异氰酸异氰酸
  1. 聚脲弹性体是一种由异氰酸根预聚物和氨基化合物反应得到的具有脲键的高分子聚合物。

    Polyurea elastomer is a polymer which is made by the reaction between isocyanate prepolymers and amino compounds .

  2. 本论文利用异氰酸硅烷和含有苯环结构的芳香胺类化合物以及不含苯环结构的氨基戊醇化合物合成了五种有机-无机杂化功能材料。

    Five kinds of organic-inorganic hybrid functional materials were prepared from isocyanate silane and aromatic amine compounds with benzene ring or amino amyl alcohol compound without benzene ring .

  3. 固体~(13)cNMR研究呋喃醇和呋喃醇与三-(2-羟乙基)-异氰酸尿酯缩聚磺化反应

    Solid-State ~ ( 13 ) C NMR Studies on the Condensation and Sulfonation of Furfuryl Alcohol and Tris ( 2-hydroxyethyl ) isocyanurate

  4. 多亚甲基多苯基多胺是多苯基甲烷多异氰酸脂(MDI)的中间体。

    Polymethylene polyphenyl polyamine is an intermediate product of polymethylene polyphenyl polyisocyanate ( MDI ) .

  5. 聚氨酯漆固化剂、聚氨酯胶粘剂:游离甲苯二异氰酸脂(TDI)。

    PU paint firming agent , PU Jiaozhanji : floating toluene two different cyanic acid resin ( TDI ) .

  6. 方法:在特定的环境和温度条件下,对PET编织纤维进行表面水解、异氰酸根反应、羧基接枝三步法的化学改性。

    METHOD : At particular temperatures in a given environment modification of biological characteristics were carried out by three steps which were surface hydrolyzation , isocyanic acid reaction and hydroxyl introduction .

  7. 方法:采用2,4-二异氰酸甲苯酯(TDI)为致敏原,对豚鼠行鼻内给药建立鼻超敏反应;

    Method : 2,4-Toluene Diisocyanate ( TDI ) selected for antigen , which was used in nose to establish guinea-pig allergic rhinitis ;

  8. 本课题组前期研究已经证实VEGF在职业哮喘诱发因素甲苯二异氰酸盐(TDI),屋尘螨以及过氧化氢等能够导致HBE通透性增高的过程中发挥重要作用。

    Our previous studies have proved that VEGF plays an important role in occupational toluene diisocyanate ( TDI ) induced permeability of AEC .

  9. 1,6-六亚甲基二异氰酸脂(HDI)是一种用途广泛的化工材料,具有巨大的潜在市场,我国严重依赖进口。

    1,6-Hexamethylenediisocyanate ( HDI ) is an extensive use of chemical material , has huge potential market . Our country relies heavily on imports .

  10. 通过自由基共聚合得到丙烯酸树脂,然后用甲基丙烯酸异氰酸乙酯(MOI)对其改性,合成了既带有N,N二甲胺基,又带有乙烯基的紫外光固化阴极电泳漆基体树脂。

    Acrylic resin containing N , N-dimethyl amino group and vinyl group applicable for UV-curable and cathodic electrophoretic paint was synthesized via radical polymerization of acrylic monomers followed by modification with methacrylic oxyethyl isocyanate ( MOI ) .

  11. 近年来二苯甲烷二异氰酸酯(MDI)和二异氰酸甲苯(TDI)在国内生产情况欠佳,仍需大量进口。

    The domestic situation of the production of MDI and TDI has not been good for recent years , so that much of which has to be imported from abroad .

  12. 主要研究了不同水泥添加量对异氰酸脂(MDI)、脲醛树脂(UF)稻草碎料板性能的影响,尤其是对板材吸水厚度膨胀率的影响。

    The influence of different added quantity concrete on the properties of the straw-particleboard made with MDI resin or UF resin was mainly studied , especially to the influence on TS of the board .

  13. 在180℃以上,DCB还将分解成酚和异氰酸,酚进一步与DCB反应生成碳酸二酯和氨;

    It decomposes to isocyanic acid and phenol which will further more react with DCB to produce dicarbonate and ammonia when temperature is up 180 ℃ .

  14. 低价钛引起的异氰酸苯酯的反应

    The reaction of phenyl isocyanate induced by low-valent titanium

  15. 二价碘酸盐及其复盐的研究二碘化钐和异氰酸苯酯的作用

    An investigation of divalent iodates and their complex salts

  16. 雷酸盐基本上不同于异氰酸盐和异氰三聚物的盐。

    The salts of fulminic acid differ basically isocyanic acid and its trimers .

  17. 蓖麻油基聚氨酯灌封胶的固化行为研究(Ⅱ)固化过程中异氰酸根含量变化和热量变化

    Studies on Curing Behavior of Castor Oil-based Polyurethane (ⅱ) & NCO Content and Heat Changes during Curing

  18. 硫代异氰酸苯酯;

    Isothiocyanic Acid Phenyl Ester ;

  19. 异氰酸与甲醛环加成反应机理的从头算研究-催化效应

    Ab initio studies on the mechanism of the cycloaddition reaction between isocyanic acid and formaldehyde catalytic effect

  20. 用甲苯二异氰酸酯和聚醚多元醇合成了聚氨酯预聚体,并讨论了异氰酸根含量、反应温度、催化剂用量对预聚体质量的影响。

    The influences of the isocyanate content 、 reaction temperature and catalyst amount were discussed on prepolymer performance .

  21. 用二异氰酸甲苯酯滴鼻建立常年性变应性鼻炎模型的光镜及电镜观察

    Establishment of perennial allergic rhinitis model in rat with toluene-2,4-iso-cyanate ( tdi ): light and electron microscopical evaluation

  22. 工人当天上班前后的肺功能观察结果表明,钒化合物无类似二异氰酸甲苯对肺功能有即时影响的作用。

    Unlike TDI , the prompt effect on lung function by comparing the pre-and post-shift values was not observed .

  23. 对二异氰酸和三元醇反应体系的研究表明,体系的粘度由温度、反应程度或重均分子量等决定;

    The results show that the viscosity is predominated by temperature , reaction extent or weight average molecular weight .

  24. 用异氰酸甲酯与适当的酸类反应,合成了一系列的取代苯基N-甲氨基甲酸酯类化合物。

    A series of substituted phenyl N-methyl carbamates were synthesized by the reaction of methyl isocyanate and the appropriate phenols .

  25. 异氰酸根封端的聚氨酯离子聚合物与乙酸木质素交联合成了一种水凝胶。

    Hydrogels were synthesized by the crosslinking between acetic acid lignin and isocyanate ( NCO ) terminated polyurethane ionomers ( IPUI ) .

  26. 讨论了异氰酸根含量、催化剂用量,以及树脂和固化剂配比对产品性能的影响。

    The effects of isocyano-content , the amount of catalyst and the proportion of resin to curing agent on the product properties were discussed .

  27. 该成果同时也为其他涂料用固化剂中异氰酸酯游离单体的脱除及非涂料行业同类产品异氰酸单体的脱除开辟了一条新路。

    The results also open a new path for the removal of other coatings with curing agent in isocyanate monomer and the removal of isocyanate monomer of non-paint industry .

  28. 介绍用光气和对硝基苯胺在乙酸乙酯溶剂中反应来制备对硝基异氰酸苯酯的方法,并讨论了其最佳工艺条件。

    The article is about how to use phosgene and p-nitrophenylamine to react in acetic ether 's liquefier to produce p-nitro-phenyl isocyanate , Its best technological condition have been discussed .

  29. 此机理同样能合理解释二苯脲和二萘硫脲的GC/MS谱图中只出现异氰酸苯酯和异硫氰酸萘酯分子离子峰的现象。

    This mechanism can also reasonably explain the fact that only molecular ionic peak of phenyl iso-thiocyanate and naphthyl iso-thiocyanate was presented in the GC / MS spectra of diphenylurea and diphenyl thiourea .

  30. 研究了异氰酸根指数、不同固液比的竹废料液化产物、水分含量、催化剂用量及硅油用量对聚氨酯泡沫性能的影响。

    The effects of isocyanate index , LB with different bamboo / solvent ratio , water content , catalyst amount , and silicone amount on the mechanical properties of LB-PU foams were determined .