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.
塑料工业中的苯酚、尿素、密胺、环氧树脂等各种塑料成型的颗粒。
Plastics industry — All kinds of plastic molding particles made from phenol, urea, melamine, and epoxy.
塑料工业中的苯酚、尿素、密胺、环氧树脂等各种塑料成型的颗粒。
Plastics industry - All kinds of plastic molding particles made from phenol, urea, melamine, and epoxy.
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.
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.
田间试验对比研究了树脂包衣尿素和普通尿素在灌漠土和风沙土两种土壤上种植玉米的肥料投入产出效益和产量差异。
The field experiments were carried out to investigate the effects of urea and resin coated urea on yield and economic benefit of corn planted in aeolian sandy soil and irrigated desert soil.
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.
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.
尿素即使在饱和浓度下，高吸水树脂仍保持在65%以上的吸水率。
When the concentration of urine was in saturation, however, the rate of absorbing water of the resin was stile more than 65%.
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.
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.
重点研究了多组分聚合物树脂包膜尿素的缓释特性及其与膜材料之间的关系。
The slow-release character of the polymer-coated urea and the correlation between the slow-release property and coating material were researched.
研制了一种适合“热进-热出”工艺的中温固化水溶性酚醛树脂，该酚醛树脂是在传统的水溶性酚醛树脂合成工艺的基础上，加入一定量的间苯二酚和尿素制成。
PF resin is modified by use of urea and resorcin to prepare a kind of mid-temperature water-soluble resin, which is suitable for "hot-hot process" in bamboo plywood production.
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.
分光光度法和数粒法测定不同释放天数的树脂包衣尿素溶出氮相关性均较好。
There are good correlated coefficient between the test by granular counted and the test by spectrophotometer.
分光光度法和数粒法测定不同释放天数的树脂包衣尿素溶出氮相关性均较好。
There are good correlated coefficient between the test by granular counted and the test by spectrophotometer.
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