1、酚醛环氧树脂_百度百科

酚醛环氧树脂 phenolic epoxy resin 又称F型环氧树脂。 在酸性介质中苯酚与甲醛进行缩聚反应得到线型酚醛树脂，再与过量环氧丙烷在氢氧化钠存在下缩聚反应制得。 其环氧基含量高，黏度较大，固化后产物交联密度高，其纤维增强塑料具有良好的物理机械性能。

2、Synergistic crosslinking of phenolic

To address these challenges, we propose a catalyst-free approach to crosslink phenolic with epoxy, forming hybrid polymers with denser networks, reduced porosity, and enhanced thermal–mechanical properties. A systematic study examined the influence of phenolic-to-epoxy resin ratios on curing kinetics, mechanical properties, and thermal stability.

3、不同结构酚醛改性环氧树脂的力学性能及其对涂层摩擦磨损

摘要 为考察不同结构酚醛树脂改性环氧树脂的力学性能及对涂层摩擦磨损性能的影响，同时为设计高性能长寿命粘结固体润滑涂层提供理论支持，本文采用动态热机械性能测试（DMA）和V-block 摩擦磨损试验，分析改性环氧树脂（EP）/硼酚醛树脂（FBB）和环氧树脂（EP）/线性酚醛树脂（SG）交联密度与力学性能的关系，并考察不同交联密度树脂对涂层摩擦磨损性能的影响。...

4、Optimization of preparation techniques for high

In light of escalating global climate change concerns and the pressing need to address industries with high carbon emissions and pollution, enhancing the preparation of phenol-formaldehyde epoxy resins has emerged as a critical research focus.

5、Simultaneous reinforcement and toughness improvement of an epoxy

In this paper, a series of novel HBPSi was synthesized and then cured into an epoxy–phenolic network. The HBPSi and the network of the modified resin were fully characterized. Moreover, the mechanical and thermal properties of the modified epoxy resins were systematically investigated.

Thermal protection materials based on epoxy‐containing and phenyl

Epoxy-containing and phenyl-containing polyhedral oligomeric silsesquioxane (EP-POSS) and EP-POSS modified phenolic resin (PR) was prepared, and its mechanical, thermodynamic and ablative properties were characterized. The results show that EP-POSS can effectively improve the mechanical properties, thermal stability and ablative performance of PR.

Preparation and Properties of Phenolic Epoxy Modified

Phenolic epoxy resin (F51) was first reacted with silane coupling agent (3-aminopropyl)triethoxysilane (KH550) to form a silanized phenolic epoxy resin (SPER); then the SPER was copolymerized with ...

Phase morphology modulation of silicone

In this work, the modified epoxy resins with phase sizes of silicone varying from a homogeneous structure to 9.35 μm were obtained by regulating curing. The effect of silicone phase size on the mechanical, thermal and ablative properties of epoxy resins was also investigated.

Catalytic Pyrolysis of Waste Epoxy Resin over Phosphorus

Epoxy resin (ER) is difficult to degrade naturally and it poses significant environmental risks. In this study, walnut shell (WS) was used to prepare phosphorus-doped activated carbon (PAC), which was employed in ER catalytic pyrolysis aimed at phenolic compound production.

Mechanical Performances of Phenolic Modified Epoxy Resins at

Review of the article: Mechanical Performances of Phenolic Modified Epoxy Resins at Room and High Temperatures The topic of this research and output might be useful for the Coatings readers.

Epoxy-Phenolic Modified Resin

Epoxy-phenolic resin is a high-performance composite material formed by reacting phenolic resin as the base raw material with epoxy resin. It exhibits unique physical and chemical properties and holds broad application prospects in many fields. This article aims to introduce the preparation process, property characteristics, and application examples of epoxy-phenolic modified resin.

Preparation Process

1. Preparation of Phenolic Resin: Phenolic resin, the foundation of epoxy-phenolic modified resin, is typically synthesized through a condensation reaction between phenolic compounds and aldehydes under alkaline conditions. Strict control of temperature and reaction time is required to ensure resin quality.

2. Selection of Epoxy Resin: Epoxy resin is a critical component of epoxy-phenolic resin, and its type and structure directly affect the resin’s performance. Common epoxy resins include bisphenol A-type and bisphenol F-type, among which bisphenol A-type epoxy resin is widely used due to its excellent mechanical properties and chemical resistance.

3. Mixing and Reaction: Phenolic resin and epoxy resin are mixed in a specific ratio and reacted at a certain temperature. During this process, reactive groups in the epoxy resin chemically bond with hydroxyl groups in the phenolic resin, forming a cross-linked network structure.

4. Curing Treatment: After the reaction, the resin undergoes curing treatment to enhance its hardness, strength, and other properties. Curing can be achieved through heating, pressure application, or radiation.

Property Characteristics

Epoxy-phenolic modified resin has the following key features:

1. Excellent Mechanical Performance: Due to the presence of epoxy resin, it exhibits high strength and toughness, capable of withstanding significant external forces.

2. Good Heat Resistance and Electrical Insulation: The resin maintains stable thermal and electrical properties under high-temperature conditions, ensuring reliable electrical performance.

3. Strong Corrosion Resistance: Building on the inherent anticorrosion properties of phenolic resin, the combination with epoxy resin further enhances corrosion resistance.

4. Fair Processing Performance: The resin is easy to mold and bond, suitable for various processing methods.

Application Examples

Epoxy-phenolic modified resin is widely used in multiple fields:

1. Construction Industry: Used in concrete and mortar additives to improve compressive, flexural, and impact resistance of building materials.

2. Automotive Manufacturing: Applied in engine components and automotive parts to enhance vehicle performance and lifespan.

3. Aerospace: Employed in aircraft parts and rocket engine components to ensure stability and reliability in extreme environments.

4. Electronics and Electricals: Utilized in circuit boards, motors, and transformers to boost product performance and longevity.

5. Chemical Industry: Used to manufacture corrosion-resistant pipelines, valves, and storage tanks, meeting rigorous material requirements in chemical production.

as a high-performance material, epoxy-phenolic modified resin offers vast application potential. By continuously optimizing its preparation process and improving its properties, it is poised to play an even greater role in future developments.