说明:双击或选中下面任意单词,将显示该词的音标、读音、翻译等;选中中文或多个词,将显示翻译。
您的位置:首页 -> 词典 -> 苯甲基化木材
1)  benzylated wood
苯甲基化木材
1.
A series of polyurethane resins were synthesized from benzylated wood solution obtained and the prepolymer of toluene diisocyanate(TDI) and trihydroxymethylpropane.
以二价酸酯与乙酸丁酯混合溶剂为液化试剂,将苯甲基化木材溶液化,得到的木材溶液与三羟甲基丙烷与甲苯二异氰酸酯的预聚物反应制备聚氨酯树脂。
2.
Polyurethane resin was synthesized by benzylated wood solution using mixture of dibasic esters(DBE) and n-butyl acetate as solvents with the adduct of toluene diisocyanate(TDI) and trihydroxymethyl propane,and then the resin was treated by different heating methods.
以二价酸酯[dibasicesters,DBE(己二酸、戊二酸、丁二酸的混合酯 ) ]与乙酸丁酯混合溶剂液化的苯甲基化木材溶液与三羟甲基丙烷甲苯二异氰酸酯预聚物为固化剂进行反应制备聚氨酯树脂。
3.
The benzylated wood was liquefied by u si ng tetrahydrofuran (THF) as solvent, and by means of gel permeation chromatograp hy analysis, the molecular weights and molecular weight distributions of liquefi ed pro-ducts obtained under different liquefaction conditions were studied.
在该实验条件下,苯甲基化木材的增重率是影响液化产品分子量及分子量分布的主要因素,且增重为142。
2)  Ethylated wood
乙基化木材
3)  benzylation
苯甲基化
1.
Study on the Modification of Bagasse by Benzylation;
甘蔗渣苯甲基化改性研究
2.
It can be seen from the SEM and X-ray figures that because of the benzylation, the wood’s crystal structure disappear.
结果表明:氯化苄改性木材的热软化点温度降为100℃左右;氯化苄改性杨木的微观形态发生了很大变化,木材原有的纤丝线状结构消失,苯甲基化木材细胞壁内部呈不规则的非结晶结构;木材经过氯化苄改性后,羟基被苄基取代,木材醚化效果明显。
4)  methylation of toluene
甲苯甲基化
5)  wood-phenol liquefaction
木材苯酚液化
1.
In order to widen the application of wood liquefaction products,to improve the added value of wood products,and to realize the highly effective uses of wood,on the basis of studying the characteristics of phenolated wood,the ideas of preparing carbon fiber from wood-phenol liquefaction products and its technical route were proposed.
为拓宽木材液化产物的应用领域,提高木材产品的附加值,实现木材的高效利用,在研究木材苯酚液化产物特性的基础上,提出了木材苯酚液化产物碳纤维材料的制备构思和工艺路线。
6)  wood liquefaction by phenol
木材苯酚液化物
补充资料:N-十二烷基-N,N-二甲基-苯甲基溴化铵
CAS:7281-04-1
分子式:C21H38BrN
分子质量:384.45
熔点:50-55℃

中文名称:N-十二烷基-N,N-二甲基-苯甲基溴化铵
苯扎溴铵;十二烷基二甲基苄基溴化铵
新洁而灭
溴化苄烷铵
N-十二烷基-N,N-二甲基苄基溴化铵

英文名称:Benzenemethanaminium, N-dodecyl-N,N-dimethyl-, bromide
N-Dodecyl-N,N-dimethylbenzenemethanaminium bromide
benzyldodecyldimethyl-ammoniu bromide
ammonyl Br 1244

性状描述:无色或淡黄色固体或胶体。易溶于水或乙醇,有芳香气,味极苦。强力振摇时,能产生大量泡沫。

生产方法:由十二醇-(1)为原料,经溴化生成1-溴代十二烷,再与N,N-二甲基苄胺成季铵盐,即得苯扎溴铵。1.溴化 以十二醇为原料,在氢溴酸、硫酸存在的条件下,可制得1-溴化十二烷。2.成季铵盐 溴代十二烷加二甲基苄胺,可得苯扎溴铵。

用途:该品为常用的阳离子表面活性剂,兼有杀菌和去垢效力,作用强而快,对金属制品无腐蚀作用,不污染衣服,性质稳定,易于保存,在医药上用作消毒防腐剂。该品毒性低,对组织无刺激性,无积累性毒性。

大鼠口服LD50为400mg/kg;鱼类LD50为15.0ppm。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条