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、改性树脂_化工百科
改性树脂是一种经过化学改性处理的树脂材料，具有特定的性质和用途。 下面是关于改性树脂的性质、用途、制法和一些安全信息的介绍： - 改性树脂具有较优异的物理性质和化学稳定性，可以满足特定的需求。 - 常见的改性树脂可以提供良好的耐久性、抗化学腐蚀性能、耐高温性以及力学性能的改进。 - 改性树脂还可以通过调整其溶解度、粘度、硬度和弹性等性质来满足不同的应用要求。 - 改性树脂广泛应用于涂料、胶黏剂、塑料、纤维等领域。 - 涂料中的改性树脂可以提供优异的附着性、耐候性、抗刮擦性和耐化学腐蚀性。 - 在胶黏剂中，改性树脂可提供高粘接强度、耐化学腐蚀性和优异的耐热性能。 - 在塑料领域，改性树脂可以改善塑料的机械性能、热稳定性和可加工 …
3、Advances in Toughening Modification Methods for Epoxy Resins: A
Toughening epoxy resins with flexible chain segments involves incorporating various flexible chains into the cured system through molecular design strategies, either by modifying the curing agent or directly altering the epoxy resin.
4、Additives and modifiers for epoxy resins
In this chapter each of the main types of modifying material will be discussed with examples given of the most common types that have been employed together with the potential benefits they impart.
A comprehensive review on modified phenolic resin composites for
Phenolic resin (PR), renowned for its strong adhesive properties, superior heat resistance, and excellent chemical stability, finds extensive applications in industries, such as electronics, coatings, and textiles.
Advances in Toughening Modification Methods for Epoxy Resins: A
This work provides a comprehensive review of the recent advancements in the toughening modification methods for epoxy resins. The study explores a variety of approaches, including the incorporation of liquid rubbers, core–shell rubber particles, ...
Polymer/Resin Modifier
Polymer/resin modifiers are substances added to improve the functions and properties of resins. For example, they confer hydrophilic or hydrophobic properties on the resin, prevent deterioration or oxidation, and improve mechanical properties.
Synthesis and Modifications of Epoxy Resins and Their
It begins with the enhancement in epoxy monomer properties such as mechanical, thermal, adhesive, barrier and etc by addition of flexible polymer and elastomers. It also explains the role of...
Natural Fillers as Potential Modifying Agents for Epoxy Composition: A
Epoxy resins are repeatedly used in exacting applications due to their exquisite mechanical properties, thermal stability, scratch resistance, and chemical resistance. Moreover, epoxy materials also have really strong resistance to solvents, chemical attacks, and climatic aging.
Research status of mechanical modification of epoxy resin
Researchers worldwide are working on enhancing its mechanical properties, like toughness, through various techniques like adding nanomaterials like carbon nanotubes or silica, using toughening agents, and modifying its surface. By controlling these materials well, we can make epoxy composites stronger and more durable.
In modern industrial fields, resins are widely used in various materials due to their unique physical and chemical properties. due to inherent limitations such as heat resistance, mechanical strength, and chemical stability, the applications of resins often face certain restrictions. modifying resins has become an important research topic.
The primary goal of resin modification is to improve performance and expand application fields by altering the basic structure and chemical composition of the resin. Specifically, modified resins can enhance mechanical strength, improve heat resistance and chemical resistance, increase electrical insulation properties, and anti-aging performance. These improvements enable resins to better meet the demands of specific applications, thereby driving technological advancements and industrial development in related fields.
First, modified resins can enhance material mechanical strength. This is achieved by adding high-strength fillers or fibers. For example, incorporating carbon fibers or glass fibers into epoxy resin can improve its tensile strength and flexural strength, making it more suitable for manufacturing structural components and composite materials. Additionally, adjusting the interfacial interactions between the resin matrix and fillers or fibers can further optimize mechanical performance.
Second, modified resins can improve heat resistance. This is typically realized by introducing additives with higher thermal stability. For instance, adding aromatic polyamides or aromatic polyesters to polyimide resin can significantly raise its heat deflection temperature and thermal stability, enabling its use in high-temperature environments.
modified resins can enhance chemical corrosion resistance. This often involves using resin matrices with excellent corrosion resistance and adding corresponding anti-corrosion additives. For example, incorporating silane coupling agents into phenolic resin effectively improves its corrosion resistance in acidic environments.
Beyond these objectives, modified resins also serve other critical functions. For example, by adjusting the viscosity and rheological behavior of the resin, material processing performance can be controlled. Introducing special functional groups or surfactants can improve surface properties, such as enhancing wear resistance, self-lubrication, and anti-blocking characteristics.
In practice, there are numerous types of modified resins, each with specific modification methods and purposes. For example, adding organic tin compounds can improve the adhesive properties of epoxy resin; increasing crosslinking density can enhance the hardness and elasticity of polyurethane resin; and adding antioxidants can improve the heat resistance and anti-aging performance of polystyrene.
resin modification is a complex and meticulous task that requires comprehensive consideration of resin properties, application needs, and potential modification methods. Appropriate modifications can significantly enhance resin performance and application ranges, driving progress in related fields. In the future, with continuous advancements in new material technologies, research on resin modification will deepen and expand, contributing even more to human social progress and development.
