1、Research progress on modification of phenolic resin

With the widening of the application fields of phenolic resins, many types of modifiers have been used to modify the molecular structure of phenolic resins.

2、Research on the Modification Process of Ester

It involves selecting modifiers to partially or completely substitute the corre-sponding molar or mass ratios of raw materials in the preparation of modified phenolic resins.

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.

4、Modification Conditions of Phenolic Resins

The thermal and ablative performance of phenolic resins can be further improved by incorporating inorganic elements like boron to the phenolic resin structure. These modifications can also affect the structure and properties of char which is formed during ablation.

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.

Modification and Application of Phenolic Resins

Blending Modification: Mixing phenolic resin with other thermosetting resins (e.g., epoxy or polyimide) reduces costs and expands applications. Synergy between resins yields superior composite properties.

Research progress on modification of phenolic resin

In this paper,the heat resistant modification of phenolic resins and the application of the modified phenolic resins with high properties to friction resistant material were introduced.

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...

Research on the Modification Process of Ester

Abstract Phenolic resin presents several challenges, including low tensile strength, a high concentration of free aldehydes, and environmental pollution. This article primarily investigates the modification of phenolic resin using bisphenol A, cashew phenol, and tannic acid as substitutes for phenol to address these issues.

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.

In modern materials science, phenolic resin, as a high-performance thermosetting resin, is widely used in aerospace, automotive manufacturing, construction reinforcement, and other fields due to its excellent physical and chemical properties. precisely controlling the modification dosage of phenolic resin to optimize its performance has always been a focus of research for material scientists. This article explores the impact of modification dosage of phenolic resin on composite performance.

Phenolic resin is a thermosetting resin synthesized through condensation polymerization of phenolic compounds and aldehydes. It exhibits superior heat resistance, chemical resistance, electrical insulation, mechanical strength, and processing properties. As a result, it is extensively applied in various composites, such as glass fiber-reinforced plastic (GFRP) and carbon fiber-reinforced plastic (CFRP).

In composites, phenolic resin serves as the matrix, bearing loads and connecting reinforcing materials. selecting an appropriate modification dosage is critical to enhancing composite performance.

First, the effect of modification dosage on the mechanical properties of composites must be considered. Generally, increasing the modification dosage improves the tensile and compressive strength of composites. This is because higher dosages densify the resin matrix, enhancing load-bearing capacity. excessive dosages may reduce mechanical performance due to decreased resin fluidity, compromising material uniformity and continuity.

Second, modification dosage significantly affects thermal stability. While phenolic resin inherently offers good thermal stability, it decomposes at high temperatures, diminishing mechanical and electrical properties. Adjusting the modification dosage effectively controls the heat deflection temperature and heat weight loss rate, expanding the usable temperature range.

Additionally, modification dosage influences corrosion resistance and wear resistance. Although phenolic resin is chemically stable, it may corrode or wear under specific conditions. Incorporating anti-corrosion agents or wear-resistant additives through optimal dosing further improves these properties.

excessive modifiers can cause composite shrinkage and deformation, affecting dimensional accuracy and surface quality. Practical applications require experimental determination of appropriate dosages based on specific needs and conditions.

the modification dosage of phenolic resin multifacetedly impacts composite performance. Rational design and control enable tailored applications in aerospace, automotive, and construction sectors. Thus,深入研究酚醛树脂改性添加量对复合材料性能的影响（Deep research on the effect of phenolic resin modification dosage on composite performance）is vital for advancing materials science.