1、Research progress on modification of phenolic resin

In recent years, more and more researchers have focused on the discussion of the properties of modified phenolic resins and gradually ignored the research on the synthesis processes that can affect the molecular structure and properties of phenolic resins.

2、Preparation of reactive phenolphthalein poly (aryl ether ketone) for

Compared with the pure epoxy system, the impact strength is improved by 82% when the resin additive amount is 5 PHR, and the toughening effect is better than that of the PEK-C system without reactive groups. Meanwhile, the modulus and thermal properties of the blended system were not reduced.

3、A comprehensive review on modified phenolic resin composites for

Current research on PR modification emphasizes both physical methods, including filler enhancement and fiber reinforcement, and chemical methods, such as copolymerization, grafting, and cross-linking.

Research progress on modification of phenolic resin

This review covers the synthesis processes used to prepare chemically modified phenolic resins and classifies and summarizes them. The types of modifiers, the timing in adding modifiers, and the advantages and disadvantages of different synthesis processes are considered.

A comprehensive review on modified phenolic resin

Current research on PR modification emphasizes both physical methods, including filler enhancement and fiber reinforcement, and chemical methods, such as copolymerization, grafting, and cross‐linking.

Fundamentals of Phenolic Resin Modification

Looking ahead, research on phenolic resin modification will continue to evolve. With ongoing innovations in material technologies, future modified phenolic resins are expected to deliver even greater performance and versatility.

Research on the Modification Process of Ester

This article primarily inves-tigates the modification of phenolic resin using bisphenol A, cashew phenol, and tannic acid as substitutes for phenol to address these issues. It explores the effects of various types and quantities of modifiers on the tensile strength and other properties of sand cores.

Research Progress on Modification of Phenolic Resins

Methods for Modifying Phenolic Resins To address the drawbacks of phenolic resins, researchers have developed multiple modification strategies. Blend modification is a prevalent approach, involving the combination of phenolic resins with other resins or fillers to improve performance.

Development in the Modification of Phenolic Resin by Renewable

Herein this review is studied to be made concerning the replacement of phenol and aldehyde compounds in the phenolic resin. Cardanol is a phenol-based by-product having an unsaturated alkyl...

Toughing modification dopment and the application status of phenolic resin

Abstract: In this review, the research progress of toughing modification of phenolic resin in China is introduced, including chemical reaction and physical blending.

In the field of materials science, polymer-based composites have become a research hotspot due to their excellent comprehensive properties. Phenolic resin, as a traditional thermosetting resin, is widely used in electronics, aerospace, and automotive industries due to its good heat resistance and electrical insulation. its brittleness and processing difficulties limit its application in broader fields. To expand the application range of phenolic resin and improve its comprehensive performance, researchers have developed various modification methods, among which polyetherketone (PEK) modification is representative. This article explores the research progress of PEK-modified phenolic resin and its significance in practical applications.

I. Principles and Advantages of PEK Modification

PEK is a high-performance engineering plastic with excellent mechanical properties, chemical resistance, and high-temperature resistance, while maintaining good processability. By blending or grafting, PEK can combine with phenolic resin to form new composite materials. The introduction of PEK not only enhances the mechanical strength, thermal stability, and electrical insulation of phenolic resin but also improves its processability and flame retardancy.

II. Preparation Methods of PEK-Modified Phenolic Resin

1. Blending Method: A certain proportion of PEK and phenolic resin are mixed using melt blending or solution blending to prepare composites. This method is simple to operate but may affect the mechanical properties and thermal stability of the composites.

2. Grafting Method: Initiators are used to trigger chemical reactions between PEK and phenolic resin, achieving the grafting of PEK molecular chains onto phenolic resin chains. This method effectively improves the mechanical and processing properties of composites but involves complex processes and higher costs.

3. Surface Modification Method: Physical or chemical treatments are applied to the surface of phenolic resin to enhance interfacial compatibility with PEK, thereby improving the overall performance of the composites.

III. Application Fields of PEK-Modified Phenolic Resin

1. Aerospace: PEK-modified phenolic resin can be used to manufacture high-performance composite components such as aircraft structural parts and spacecraft shells, which require high strength, stiffness, and fatigue resistance.

2. Automotive Industry: In automotive manufacturing, PEK-modified phenolic resin can be employed for engine parts, transmission system components, etc., to improve fuel efficiency and reduce emissions.

3. Electronics and Electrical Engineering: PEK-modified phenolic resin is suitable for producing electronic components like circuit boards and cable sheaths, leveraging its superior electrical insulation and high-temperature resistance.

4. Energy Sector: In wind power, solar panels, and other fields, PEK-modified phenolic resin can be used to manufacture lightweight and efficient support structures and connectors, enhancing energy conversion efficiency.

The research and application of PEK-modified phenolic resin demonstrate an innovative material design concept. By combining phenolic resin with PEK, a series of high-performance, low-cost novel composite materials can be developed. These materials hold broad application prospects in aerospace, automotive manufacturing, electronics, and energy sectors. In the future, with continuous advancements in PEK modification technology and cost reduction, more composite products based on PEK-modified phenolic resin are expected to emerge, driving innovation and transformation across industries.