Dichroitic azo dyes play an important role in the color liquid crystal displays because of their characteristic structure and the ability of being chemical modified.
二向色性偶氮染料分子结构上的特性和可修饰性,使其在液晶彩色显示中得到重要的应用。
单词 | Azo Dye |
释义 |
Azo Dye
英语例句库
Dichroitic azo dyes play an important role in the color liquid crystal displays because of their characteristic structure and the ability of being chemical modified. 二向色性偶氮染料分子结构上的特性和可修饰性,使其在液晶彩色显示中得到重要的应用。 In order to overcome the disadvantage of low rubfastness of conventional pigment dyeing , a new type covering pigment with ultramicro azo dye as core and acrylate adhesive as shell was presented. 为克服常规涂料染色摩擦牢度低的弊病,作者提出采用以超微偶氮颜料为核,以丙烯酸酯类粘合剂为壳的新型颜料包覆体染色新的探索途径。
原声例句
TED-Ed(视频版) Here, the fabric is dipped into commercial bleaches and azo dyes, which make up the vivid coloring in about 70% of textiles. 在这里, 织物被浸入商业漂白剂和偶氮染料中,它们构成了大约 70% 纺织品的鲜艳色彩。
中文百科
偶氮化物 Azo compound(重定向自Azo Dye)
偶氮化合物是一类含氮有机化合物,通式为R-N=N-R',R/R'为有机基团,可以是芳基或烷基。N=N称为偶氮基。若R/R'都为氢,则成为二亚胺(HN=NH)。 以芳香族偶氮化合物最为稳定,也最为常用,π共轭体系的范围很大,有很多都是偶氮染料。它们大多是稳定的晶体,比较典型的如偶氮苯,主要以trans-异构体存在,但可以受光转变为cis-异构体。芳香族偶氮化合物由重氮盐和酚/芳香胺等活化的芳香环发生亲电取代反应(重氮偶合反应)制取。重氮盐在温度升高时会分解,故此类反应一般在0°C左右进行。肼衍生物(R-NH-NH-R')的氧化也会生成偶氮化合物。
英语百科
Azo compound 偶氮化物(重定向自Azo Dye)
![]() ![]() ![]() ![]() Azo compounds are compounds bearing the functional group R–N=N–R′, in which R and R′ can be either aryl or alkyl. IUPAC defines azo compounds as: "Derivatives of diazene (diimide), HN=NH, wherein both hydrogens are substituted by hydrocarbyl groups, e.g. PhN=NPh azobenzene or diphenyldiazene." The more stable derivatives contain two aryl groups. The N=N group is called an azo group. The name azo comes from azote, the French name for nitrogen that is derived from the Greek ἀ- (a-, "not") + ζωή (zōē, life). |
随便看 |
|
英汉网英语在线翻译词典收录了3779314条英语词汇在线翻译词条,基本涵盖了全部常用英语词汇的中英文双语翻译及用法,是英语学习的有利工具。