1、脲醛树脂_百度百科

脲醛树脂（UF），又称尿素甲醛树脂，是尿素与甲醛在催化剂（碱性或酸性催化剂）作用下缩聚成初期脲醛树脂，然后再在固化剂或助剂作用下形成不溶、不熔的末期 热固性树脂。 [1]固化后的脲醛树脂颜色比 酚醛树脂 浅，呈半透明状，耐弱酸、弱碱，绝缘性能好，耐磨性极佳，价格便宜，它是胶粘剂中用量最大的品种，特别是在木材加工业各种人造板的制造中，脲醛树脂及其改性产品占胶粘剂总用量的90%左右。 然而，脲醛树脂遇强酸、强碱易分解，耐候性较差，初粘差、收缩大、脆性大、不耐水、易老化，用脲醛树脂生产的人造板在制造和使用过程中存在着甲醛释放的问题，因此必须对其进行改性。 [2] 脲醛树脂，又称尿素甲醛树脂，简称UF，平均分子量约10000。

2、羟基磷灰石改性脲醛树脂的热固化动力学,Journal of Thermal

In this study, hydroxyapatite (HA) was surface modified with silane coupling agent. The modified HA was named HA-APTES, and its structure was analyzed. Hydroxyapatite modified urea-formaldehyde resin (HUF) were prepared by adding different amounts of HA-APTES in the synthesis process.

3、Modified graphene as potential additive for urea formaldehyde (UF

Results have demonstrated that the addition of alkylamine to a UF resin can reduce formaldehyde emissions from particleboard and MD, Fowever, physical and mechanical properties of the produced boards were adversely affected.

Ureido Hyperbranched Polymer Modified Urea

In this work, hyperbranched polyurea (UPA 6N) is first synthesized by a simple method without any solvent. UPA 6N is then added into industrial UF resin in different proportions as additives to manufacture particleboard and test its related properties.

Modified Urea Formaldehyde Resin

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Semi

Research advancement in urea-formaldehyde resin with low formaldehyde content used in domestic wood ... Study on mechanism and preparation of green urea-formaldehyde resin

Progress on Urea Formaldehyde Resin Adhesives Modified

By adding nanomaterials to the UF resin adhesive, the nanoparticles can physically or chemically interact with the UF resin, thereby modifying and improving the resin. This article summarizes the methods for modifying UF resin adhesives by nanomaterials.

Recent developments in the performance of micro/nanoparticle

Formaldehyde emission (FE) in UF resins-bonded wood panel products is one of the main drawbacks of UFs resins. The increasing demand for eco-friendly products requires a compelling drive towards the promotion of nano-particles science.

The thermal curing and degradation properties of urea–formaldehyde

In this paper, Myrica esculenta extract (MET) was used to modify the urea–formaldehyde (UF) resin. The optimal amount of MET is determined by considering the basic properties of the resins and the bonding strength and formaldehyde emission of the plywood.

Urea Formaldehyde Resins

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In modern materials science, modified urea-formaldehyde (UF) resins have garnered significant attention as high-performance synthetic polymers due to their unique properties and broad applications. As a key city in eastern China, Changzhou has taken a leading role in the research and application of modified UF resins. This article explores the characteristics, application fields, and future potential of Changzhou-modified UF resins.

I. Characteristics of Changzhou-Modified UF Resins

Changzhou-modified UF resins are high-performance polymers derived from urea-formaldehyde through chemical modifications. While retaining the core advantages of traditional UF resins—such as strong adhesion, chemical resistance, and excellent electrical insulation—these modified resins offer enhanced properties through advanced formulations:

1. High Thermal Resistance Modified UF resins exhibit improved heat stability, maintaining performance at elevated temperatures. This enables their use in high-temperature environments, such as automotive engine components and aerospace material processing.

2. Enhanced Mechanical Strength By incorporating specific fillers or reinforcing agents, the mechanical strength of modified UF resins is significantly increased. This makes them suitable for structural parts, composites, and load-bearing applications.

3. Superior Electrical Insulation These resins maintain low dielectric constants and minimal dielectric loss under high-frequency conditions, positioning them as critical materials in electronic devices, power equipment, and insulation systems.

II. Application Fields of Changzhou-Modified UF Resins

Owing to their exceptional properties, Changzhou-modified UF resins are widely used across diverse industries:

1. Electronics and Electrical Industry They serve as key materials for circuit boards, electronic components, and insulation materials, ensuring stability and safety in electronic devices.

2. Automotive Industry Applied in engine parts, automotive components, and body materials, their high strength and thermal resistance ensure reliable performance under harsh conditions.

3. Aerospace Sector Used in aircraft structural components and aviation equipment, their thermal stability and mechanical robustness make them ideal for aerospace applications.

4. Construction Industry Employed in building materials and decorative finishes, their chemical resistance and electrical insulation enhance durability and safety in construction.

III. Future Development Potential of Changzhou-Modified UF Resins

Driven by technological advancements and market demands, Changzhou-modified UF resins hold significant growth potential:

1. Technological Innovation Continuous R&D can yield resins with specialized properties to meet evolving high-performance material needs.

2. Industrial Chain Integration Strengthening upstream and downstream collaborations will improve production efficiency, reduce costs, and enhance global competitiveness.

3. International Market Expansion Increased international cooperation and exchange can facilitate the entry of Changzhou-modified UF resins into global markets, solidifying their competitive edge.

As a high-performance synthetic polymer, Changzhou-modified UF resins shine in materials science due to their unique properties and versatile applications. With ongoing technological progress and expanding markets, these resins are poised to play an increasingly vital role across industries, contributing significantly to socio-economic development.