以磺化三聚氰胺和尿素为单体，在酸催化下，合成磺化三聚氰胺尿素甲醛树脂。
With sulfonated melamine and urea as monomers and acids as catalysts, the synthesis of sulfonated melamine urea formaldehyde resin is carried out.
同时，尿素甲醛的树脂用于制造中密度板(MDO)，这是一种混凝土和夹板的组合体，通常用于混凝土模具中。
Meanwhile, the resin of urea and formaldehyde is used for medium-density overlay (MDO), a combination of concrete and plywood, used in concrete moulds.
含胺基或氨基树脂是尿素或三聚氰胺和甲醛烷基化反应产品。
An amine or amino resin is the alkylated reaction product of urea or melamine and formaldehyde.
研究了树脂合成过程中原材料纯度、尿素和甲醛的摩尔比、反应温度以及反应时间等对粘度和固含量等性能的影响。
Effects of purity of raw materials, molar ratio of urea and formaldehyde, reaction temperatures and reaction time on the properties of urea-formaldehyde resin adhesive were studied.
三聚氰胺、尿素与甲醛经羟甲基化、醚化反应，生成甲醚化六羟甲基三聚氰胺和甲醚化羟甲基脲复合树脂胶。
Melamine, urea and formaldehyde underwent hydroxymethylation and etherification to yield a composed resin glue of methyl-etherified hexahydroxy methylmelamine and methyl-etherified hydroxymethylurea.
苯酚、苯基苯酚、尿素与甲醛的反应产物进一步与糖醇缩聚生成新型铸造用改性酚醛树脂粘结剂。
A new type of phenolic resin adhesive for casting was prepared by condensation polymerization of furfuryl alcohol and the reaction product between phenol, phenylphenol, urea and formaldehyde.
脲醛树脂由尿素、甲醛、二醛和一种或多种稳定剂、改性剂，按照弱碱-弱酸-弱碱的路线反应而得。
The urea-formaldehyde resin is formed by the reaction of urea, formaldehyde, aldehyde, one or more stabilizers and modifier according to the route of weak base-weak acid-weak base.
本文探讨了缩聚前甲醛与尿素的摩尔比对脲醛树脂性能的影响，并提出树脂生产的最佳反应摩尔比。
This paper approaches the effect of molar ratio of formaldehyde to urea before polycondensation on properties of UF-Resin and puts forward the best reaction of molar ratio in the resin production.
本文介绍尿素-三聚氰胺-甲醛共缩聚合成机理、树脂性能、以及制备工艺对其性能的影响。
The mechanisms of co-condensation, the properties and performance of MUF resin are described in this paper.
通过分批加入尿素的方法，将尿素、甲醛、阻燃剂P800和硼砂反应制备阻燃脲醛树脂。
The fire-retardant urea-formaldehyde resins were synthesized with urea and formaldehyde and P800 and borax.
本文探讨了在实验室条件下利用工业用36 ％甲醛和含氮46％ 农用尿素合成脲醛树脂包埋昆虫标本的方法。
The urea-formaldehyde resin was made from industrial 36% formalin and 46% N carbamide in the laboratory. The urea-formaldehyde resin was used to imbed the insect specimens.
用热机械分析（TMA）方法研究了三聚氰胺-尿素-甲醛树脂固化初期胶层粘度的变化。
Viscosity change of melamine urea formaldehyde glue line was investigated with a thermo mechanical analyzer (TMA) used as a parallel plates rheometer.
用热机械分析（TMA）方法研究了三聚氰胺-尿素-甲醛树脂固化初期胶层粘度的变化。
Viscosity change of melamine urea formaldehyde glue line was investigated with a thermo mechanical analyzer (TMA) used as a parallel plates rheometer.
应用推荐