The abamectin microcapsules were prepared by in-situ polymerization process in this work, with melamine-formaldehyde resin and urea-formaldehyde resin as wall materials respectively.
采用原位聚合法，分别使用脲醛树脂和蜜胺树脂两种囊壁材料对生物农药-阿维菌素进行了微胶囊包覆。
The three main adhesives for artificial plate are urea-formaldehyde resin adhesive, phenolic-formaldehyde resin adhesive and melamine-formaldehyde resin adhensive.
人造板工业使用的三大胶是脲醛树脂胶、酚醛树脂胶和三聚氰胺-甲醛树脂胶。
The storing stability of urea formaldehyde resin adhesive with the change of PH value is researched in attempt to guide the production and imporove the application for products.
对脲醛树脂胶的贮存稳定性随p H值的变化进行研究，以指导生产，提高产品的适用。
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.
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。
As a matrix of wood composite, urea-formaldehyde resin has been used extensively, and the relationship between its structure and performance is also one focus for enterprises.
作为木质复合材料基体而被广泛使用的脲醛树脂，其结构与性能之间的关系，一直是企业界所关注的焦点。
This artical presents the productive technology and formulae of urea-formaldehyde resin used in bamboo mould plate.
本文对竹胶板模板用脲醛树脂胶的生产工艺和配方试验研究做了介绍。
Base on this, the influence of urea formaldehyde resin on the water resistance of MOC was investigated through an experimental study with strength and water-resistance as evaluation indexes.
在此基础上，本文通过试验研究，以氯氧镁水泥的试块强度和耐水性为指标，探讨脲醛树脂对氯氧镁水泥耐水性的影响。
Production theory and processes of modified urea-formaldehyde resin used in oil well water shutoff and some influence on product performance resulted by main factor in the production are introduced.
介绍了适用于油田油井堵水用的改性脲醛树脂的生产原理和工艺，以及生产中的关键因素对产品性能的影响。
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.
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。
With sulfonated melamine and urea as monomers and acids as catalysts, the synthesis of sulfonated melamine urea formaldehyde resin is carried out.
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。
The water resistant low formaldehyde content urea-formaldehyde resin was prepared by adding hydrophobic resin and formaldehyde collecting agent.
采用加入疏水性树脂和甲醛捕捉剂的方法对脲醛树脂进行了改性。
The free formaldehyde of the urea formaldehyde resin adhesive agent is the main pollution source of artificial board.
尿醛树脂胶粘剂中的游离甲醛是人造板中主要的污染源。
Adding amylum or oxidized amylum in the synthesis process of low toxic urea-formaldehyde resin can improve pre-press capability and bonding strength of plywood.
在低毒脲醛树脂胶粘剂合成过程中加入淀粉或氧化淀粉，能有效地改善胶合板板坯的预压性能和胶合板的胶接强度。
The effect of modified hide glue agent on the bonding property of urea-formaldehyde resin was studied to improve the application performance of UF resin.
研究了化学改性皮胶加入脲醛（UF）树脂对胶合性能的影响，旨在提高普通脲醛树脂应用性能。
The effect of ethanol, urea-formaldehyde resin, melamine and flame retardant of resistance to water and fire was studied.
研究了乙醇、脲醛树脂、三聚氰胺和阻燃剂对涂料耐水、阻燃性能的影响。
The theoretical researches on urea-formaldehyde resin and its practice in wood industry were reviewed in detail.
对脲醛树脂的理论研究及其在木材工业中的实际应用进行了较全面的概括和评述。
A kind of modified low toxic urea-formaldehyde resin was synthesized.
经过大量试验合成了一种低毒改性脲醛树脂。
This paper describes intensity property of joined timber with urea-formaldehyde resin.
本文描述了脲醛树脂胶指接材的强度性能。
Two parts were included in this study, Microencapsulation of rose perfume with urea-formaldehyde resin wall were prepared by in-situ method in the first part.
本文研究工作分为两部分，第一部分是用原位聚合法以脲醛树脂为壁材制备缓释型香精微胶囊。
Based on the experimental Studies, a new kind of expansion anti-fire coating was manufactured, which is made mainly of cheaper urea-formaldehyde resin.
在实验研究基础上，提出以廉价的脲醛树脂为基料，辅以相关助剂制取膨胀型防火涂料的新方法。
Objedtive: To explore the technological conditions about preparing for microcapsules with an urea-formaldehyde resin as wall and with cypermethrin as core material.
目的：探讨以脲醛树脂为壁材，以氯氰菊酯为囊芯物制备聚脲微胶囊的工艺条件。
The formulation and production process of this coatings were given, and factors influencing the film properties, such as level of urea - formaldehyde resin and acid curing catalyst were discussed.
介绍了该涂料的配方和配制工艺。讨论了脲醛树脂用量和酸固化催化剂对涂膜性能的影响。
Meanwhile, the mechanical properties of plant fiber cement-based composite materials have been effectively improved through treating the surface of plant fiber by urea-formaldehyde resin.
同时采用脲醛树脂对植物纤维进行表面处理，有效地改善了复合材料的物理性能。
Microcapsules of pendimethalin with a urea-formaldehyde resin wall were prepared by an in-situ condensation polymerization reaction in aqueous medium.
研究了分散、乳化条件及成囊工艺对以脲醛树脂为壁材制备二甲戊乐灵微胶囊状态的影响。
A novel method for producing urea formaldehyde resin with intensive viscidity, high solid content and low toxicity is introduced in this report.
介绍一种粘结强度大、固含量高、低毒环保型的脲醛树脂粘合剂的合成方法。
The new urea formaldehyde resin for plywood was developed, by using a specifically designed, advanced synthesis process with two modifiers added in its final stage.
此种新开发的脲醛树脂，采用特定的先进合成工艺和加入两种改性剂研制而成。
The amount of formaldehyde emission of plywood was declined obviously by using modified urea-formaldehyde resin adhesive.
使用改性脲醛胶粘剂可以明显降低人造板的甲醛释放量；
The water solubility of urea-formaldehyde resin is evaluated by the stability of resin solution and the water diluted solution.
通过树脂液及水稀释液的稳定性来研究脲醛树脂的水溶性。
For the production of non-wood based panel, wood based panel, and furniture used urea-formaldehyde resin with the E0 class, E1 class formaldehyde released.
用于生产甲醛释放量为E 0级、E1级人造板、木地板、家具用脲醛树脂生产。
For the production of non-wood based panel, wood based panel, and furniture used urea-formaldehyde resin with the E0 class, E1 class formaldehyde released.
用于生产甲醛释放量为E 0级、E1级人造板、木地板、家具用脲醛树脂生产。
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