脲醛樹脂；尿素樹脂；脲醛屍
Raw material used as pesticides and disinfectant, phenolic resin, urea formaldehyde resin, vinylon, urotropine, pentaerythritol and dyes.
用作農藥和消毒劑，制酚醛樹脂、脲醛樹脂、維綸、************、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為單體，在酸催化下， 合成磺化三聚氰胺尿素甲醛樹脂。
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.
本文基于林産工業的迅猛發展對膠粘劑的新要求，對脲醛樹脂膠粘劑作了分析與實驗之後，探讨出符合新要求的改性脲醛樹脂産品生産合成工藝。
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、 脲醛樹脂、 膨潤土、基礎油為原料在水為溶劑條件下合成了一種新型潤滑脂。
The improved urea formaldehyde resin in liquid form is injected into soil. Withe cross polymer solidification happening in the soil, the soil is strengthened .
将改性脲醛樹酯以液态的形式摻入土中，使聚合物在土中進行交鍊固化，從而實現對土體的加固。
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.
本文論述*********脲醛樹脂的合成，并對合成條件進行了探讨，采用本法制備的産品，效果好、貯存穩定。
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.
以甲醛和尿素為主要原料，聚乙烯醇（PVA）為改性劑，合成了一種毒性較小、強度較高、施工方便且不污染環境的改性脲醛樹脂堵劑。
Gain Modified urea formaldehyde resin foam plastics by the carbonic acid hydrogen ammonia.
通過碳酸氫铵發泡法發泡制得開孔改性脲醛樹脂泡沫塑料。
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.
此種新開發的脲醛樹脂，采用特定的先進合成工藝和加入兩種改性劑研制而成。
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.
對脲醛樹脂膠的貯存穩定性隨p H值的變化進行研究，以指導生産，提高産品的適用。
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.
澱粉凝膠的力學性能因糖、無機鹽、酸堿、單甘酯等的加入用來改善食品風味和口感的物質而發生變化。
Urea Formaldehyde Resin;
脲醛樹脂；
To repair casing leaks in production and injection wells at Zhongyuan, a sealant based on commercial curable modified urea formaldehyde resin FYC is prepared.
研制了一種改性脲醛樹脂基堵漏劑，用于封堵河南油田油水井的套損破漏。
In this paper, p-methyl phenyl sulphonylamine was used to modify urea formaldehyde resin with low molar ratio.
用對*********磺酰胺改性低克分子比的脲醛樹脂。
A novel method for producing urea formaldehyde resin with intensive viscidity, high solid content and low toxicity is introduced in this report.
介紹一種粘結強度大、固含量高、低毒環保型的脲醛樹脂粘合劑的合成方法。
Macromolecule materials are added into urea formaldehyde resin to decrease its brittleness and contractility, and increase its water resistance.
在脲醛樹酯中加入其它高分子材料，降低其脆性和收縮性，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.
在此基礎上，本文通過試驗研究，以氯氧鎂水泥的試塊強度和耐水性為指标，探讨脲醛樹脂對氯氧鎂水泥耐水性的影響。
The free formaldehyde of the urea formaldehyde resin adhesive agent is the main pollution source of artificial board.
尿醛樹脂膠粘劑中的遊離甲醛是人造闆中主要的污染源。
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.
作為木質複合材料基體而被廣泛使用的脲醛樹脂，其結構與性能之間的關系，一直是企業界所關注的焦點。
This artical presents the productive technology and formulae of urea-formaldehyde resin used in bamboo mould plate.
本文對竹膠闆模闆用脲醛樹脂膠的生産工藝和配方試驗研究做了介紹。
The curing process of urea-formaldehyde resin is to transform the linear resin into crosslinked one, by which give resin bonding strength.
脲醛樹脂的固化是将線型可溶性樹脂轉化成不溶不熔體型結構并獲得膠接強度的過程。
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.
介紹了適用于油田油井堵水用的改性脲醛樹脂的生産原理和工藝，以及生産中的關鍵因素對産品性能的影響。
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.
在低毒脲醛樹脂膠粘劑合成過程中加入澱粉或氧化澱粉，能有效地改善膠合闆闆坯的預壓性能和膠合闆的膠接強度。
This paper aimed at the problem of moisture-resistance performance of finish foil, adopting melamine modified urea formaldehyde impregnated resin to make MUF.
本文采用三聚氰胺對脲醛樹脂進行改性，合成三聚氰胺改性脲醛樹脂（MUF），解決預油漆紙耐潮濕性的問題。
With application of nuclear magnetic resonance in structure researching of urea-formaldehyde resin, minor structural differences can be clearly distinguished.
在将核磁共振應用于脲醛樹脂的結構研究之後，區分了結構上的細微差别。
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.
高密度門：是以木質纖維或其他植物纖維為原料，施加脲醛樹脂或其他適用的膠粘劑制成的人造闆材門。
A kind of modified low toxic urea-formaldehyde resin was synthesized.
經過大量試驗合成了一種低毒改性脲醛樹脂。
尿素甲醛樹脂（Urea Formaldehyde Resin, UF Resin） 是一種重要的熱固性合成樹脂，由尿素（Urea）和甲醛（Formaldehyde）通過縮聚反應制成。它屬于氨基樹脂家族，是木材加工業中應用最廣泛的膠粘劑之一。其核心特性與應用如下：
化學組成與形成
尿素（NH₂CONH₂）與甲醛（HCHO）在酸性或堿性催化劑作用下發生加成反應，生成羟甲基脲，再進一步縮聚形成具有三維網狀結構的高分子聚合物。該過程涉及多次羟甲基化和縮合反應，最終固化形成不溶不熔的固體。
主要特性
主要應用領域
安全與環保考量
甲醛釋放是UF樹脂的主要環境與健康問題。各國（如歐盟REACH法規、美國EPA标準、中國GB标準）均對人造闆及其制品的甲醛釋放量有嚴格限制。降低甲醛釋放的方法包括：
發展與改性
為克服耐水性差和甲醛釋放問題，UF樹脂常被改性，如與三聚氰胺共聚制成三聚氰胺-尿素-甲醛樹脂（MUF），可顯著提高耐水性和降低甲醛釋放。持續的研究緻力于開發更低甲醛釋放（E0級、超E0級）甚至無醛添加的替代品，但UF樹脂因其成本低廉、工藝成熟、性能滿足基本需求，仍是人造闆工業的支柱膠種。
權威參考來源：
Urea Formaldehyde Resin（脲醛樹脂）詳細解釋
定義與組成
Urea Formaldehyde Resin（簡稱UF樹脂）是一種由尿素（Urea）和甲醛（Formaldehyde）通過縮聚反應合成的熱固性高分子聚合物。其英文名稱也寫作“Urea-formaldehyde”或“Ureaformaldehyde”。
合成與特性
主要應用領域
注意事項
由于固化後可能緩慢釋放甲醛，需控制生産工藝以減少殘留，避免室内空氣污染。
脲醛樹脂因成本低、粘接性強被廣泛應用，但環保性需通過改性技術（如降低甲醛釋放）提升。如需更專業信息，可參考化工材料數據庫或學術文獻。
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