脲醛树脂；尿素树脂；脲醛尸
Raw material used as pesticides and disinfectant, phenolic resin, urea formaldehyde resin, vinylon, urotropine, pentaerythritol and dyes.
用作农药和消毒剂，制酚醛树脂、脲醛树脂、维纶、************、季戊四醇和染料等的原料。
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。
Based on the new requirement of the glue's better quality, we devoted ourselves in the research of the urea formaldehyde resin, and got a new method of preparing high standard urea formaldehyde resin.
本文基于林产工业的迅猛发展对胶粘剂的新要求，对脲醛树脂胶粘剂作了分析与实验之后，探讨出符合新要求的改性脲醛树脂产品生产合成工艺。
A new kind of grease was synthesized with octadecylamine, urea formaldehyde resin, bentonite and base oil under the condition of water as solvent.
以十八胺、 脲醛树脂、 膨润土、基础油为原料在水为溶剂条件下合成了一种新型润滑脂。
The improved urea formaldehyde resin in liquid form is injected into soil. Withe cross polymer solidification happening in the soil, the soil is strengthened .
将改性脲醛树酯以液态的形式掺入土中，使聚合物在土中进行交链固化，从而实现对土体的加固。
In this paper, synthesis of 1-propanol urea formaldehyde resin is stu***d and the reacting conditions are discussed. The effects and bin stability are good.
本文论述*********脲醛树脂的合成，并对合成条件进行了探讨，采用本法制备的产品，效果好、贮存稳定。
A modified urea formaldehyde resin plugging agent with low toxicity and high intensity was prepared in lab with formaldehyde and urea as main materials, polyvinyl alcohol(PVA)as modifier.
以甲醛和尿素为主要原料，聚乙烯醇（PVA）为改性剂，合成了一种毒性较小、强度较高、施工方便且不污染环境的改性脲醛树脂堵剂。
Gain Modified urea formaldehyde resin foam plastics by the carbonic acid hydrogen ammonia.
通过碳酸氢铵发泡法发泡制得开孔改性脲醛树脂泡沫塑料。
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 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。
A kind of modified starch adhesive can be made by mixing an amount of furancarbinol urea formaldehyde resin as modifier with starch adhesive as main adhesive content.
淀粉凝胶的力学性能因糖、无机盐、酸碱、单甘酯等的加入用来改善食品风味和口感的物质而发生变化。
Urea Formaldehyde Resin;
脲醛树脂；
To repair casing leaks in production and injection wells at Zhongyuan, a sealant based on commercial curable modified urea formaldehyde resin FYC is prepared.
研制了一种改性脲醛树脂基堵漏剂，用于封堵河南油田油水井的套损破漏。
In this paper, p-methyl phenyl sulphonylamine was used to modify urea formaldehyde resin with low molar ratio.
用对*********磺酰胺改性低克分子比的脲醛树脂。
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。
Macromolecule materials are added into urea formaldehyde resin to decrease its brittleness and contractility, and increase its water resistance.
在脲醛树酯中加入其它高分子材料，降低其脆性和收缩性，提高其耐水性。
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。
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。
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。
The curing process of urea-formaldehyde resin is to transform the linear resin into crosslinked one, by which give resin bonding strength.
脲醛树脂的固化是将线型可溶性树脂转化成不溶不熔体型结构并获得胶接强度的过程。
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。
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。
This paper aimed at the problem of moisture-resistance performance of finish foil, adopting melamine modified urea formaldehyde impregnated resin to make MUF.
本文采用三聚氰胺对脲醛树脂进行改性，合成三聚氰胺改性脲醛树脂（MUF），解决预油漆纸耐潮湿性的问题。
With application of nuclear magnetic resonance in structure researching of urea-formaldehyde resin, minor structural differences can be clearly distinguished.
在将核磁共振应用于脲醛树脂的结构研究之后，区分了结构上的细微差别。
High density door: The material is wooden fiber or other plant fiber, and the synthetic door is made by the applied urea-formaldehyde resin or other applicable adhesive.
高密度门：是以木质纤维或其他植物纤维为原料，施加脲醛树脂或其他适用的胶粘剂制成的人造板材门。
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。
尿素甲醛树脂（Urea Formaldehyde Resin, UF Resin） 是一种重要的热固性合成树脂，由尿素（Urea）和甲醛（Formaldehyde）通过缩聚反应制成。它属于氨基树脂家族，是木材加工业中应用最广泛的胶粘剂之一。其核心特性与应用如下：
化学组成与形成
尿素（NH₂CONH₂）与甲醛（HCHO）在酸性或碱性催化剂作用下发生加成反应，生成羟甲基脲，再进一步缩聚形成具有三维网状结构的高分子聚合物。该过程涉及多次羟甲基化和缩合反应，最终固化形成不溶不熔的固体。
主要特性
主要应用领域
安全与环保考量
甲醛释放是UF树脂的主要环境与健康问题。各国（如欧盟REACH法规、美国EPA标准、中国GB标准）均对人造板及其制品的甲醛释放量有严格限制。降低甲醛释放的方法包括：
发展与改性
为克服耐水性差和甲醛释放问题，UF树脂常被改性，如与三聚氰胺共聚制成三聚氰胺-尿素-甲醛树脂（MUF），可显著提高耐水性和降低甲醛释放。持续的研究致力于开发更低甲醛释放（E0级、超E0级）甚至无醛添加的替代品，但UF树脂因其成本低廉、工艺成熟、性能满足基本需求，仍是人造板工业的支柱胶种。
权威参考来源：
Urea Formaldehyde Resin（脲醛树脂）详细解释
定义与组成
Urea Formaldehyde Resin（简称UF树脂）是一种由尿素（Urea）和甲醛（Formaldehyde）通过缩聚反应合成的热固性高分子聚合物。其英文名称也写作“Urea-formaldehyde”或“Ureaformaldehyde”。
合成与特性
主要应用领域
注意事项
由于固化后可能缓慢释放甲醛，需控制生产工艺以减少残留，避免室内空气污染。
脲醛树脂因成本低、粘接性强被广泛应用，但环保性需通过改性技术（如降低甲醛释放）提升。如需更专业信息，可参考化工材料数据库或学术文献。
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