1、Synthesis and application of epoxy resins: A review
The final properties of cured epoxy resins are affected by the type of epoxy resin, curing agent, and curing process. This paper aims to review the synthesis, curing process, and application of epoxy resins.
2、Chemistry and Types of Epoxy Resins
Epoxy resins are a class of versatile, thermosetting polymers that have gained significant attention due to their exceptional properties and diverse applications. This chapter explores the chemistry and types of epoxy resins, highlighting their synthesis, curing...
3、Hydrogenated epoxy resin
A method for dispersing and stabilizing a carboxy- functionalized butadiene-styrene block copolymer in an epoxy resin is provided comprising the steps of: (a) dispersing from about 5 to about 30 weight percent of a carboxy-functionalized...
Epoxy Resin Synthesis, Performance and Application Research
In this study, the adhesion and dissociation between epoxy resin and molecules containing Si atoms were analyzed. The analysis, conducted in contact with the solid surface of silicon, utilized quantum chemical calculations based on a molecular model.
Synthesis and Characterizations of New Epoxy Resins and its composites
Epoxy resins belong to the most important thermosetting polymers with good properties and the blended nanocomposites are widely used materials in modern industry.
Analysis of Preparation and Properties on Shape Memory Hydrogenated
The shape memory hydrogenated epoxy resin (SM-HEP) is prepared using hydrogenated bisphenol A epoxy resin (AL-3040), polypropylene glycol diglycidylether diacrylate (JH-230), and isophorone diamine (IPDA). The formulations of the SM-HEP-AM are obtained by the linearly fitted method.
Epoxy Resins Technology Handbook (Synthesis, Epoxy Resin Adhesives
Epoxy is a term used to denote both the basic components and the cured end products of epoxy resins, as well as a colloquial name for the epoxide functional group.
基于动态受阻脲键氢化环氧树脂的介电性能与可修复性能
通过改变氢化环氧与仲胺的摩尔比,调节材料的交联密度及动态键含量,研究其对材料机械性能、介电绝缘性能以及修复性能的影响规律。 试验结果表明,含有动态受阻脲键的氢化环氧树脂的击穿场强和直流体积电阻率与咪唑固化环氧树脂相当;更高的交联密度有利于改善材料的机械性能与绝缘性能;更高的脲键含量可通过增加偶极矩提高材料的介电常数。 动态受阻脲键在一定的热刺激环境下可进行动态的解离和缔合实现对材料机械损伤的修复,更高的动态键含量可促进链段的再次键合能力,进而提高材料对损伤的修复能力。
氢化双酚A型环氧树脂的固化动力学
Abstract: The hydrogenated bisphenol A epoxy resin (HBPA-EP) with an epoxy value of 0.45 was prepared by the reaction of hydrogenated bisphenol A and epichlorohydrin, and was cured with...
Epoxy resins: Synthesis, structure, and properties
Different synthetic routes have emerged so far for the production of epoxy resins. They are gifted with exceptional qualities like good heat resistance and mechanical properties and high electrical resistance, chemical resistance, and adhesion strength.
Synthetic hydrogenated epoxy resins are extremely important materials in modern industry, offering outstanding physical and chemical properties that enable their widespread application across various fields. This article delves into the fundamental principles, preparation methods, and applications of synthetic hydrogenated epoxy resins.
I. Basic Principles of Synthetic Hydrogenated Epoxy Resins
Synthetic hydrogenated epoxy resins are high-molecular-weight compounds containing epoxy groups and hydroxyl groups. Their structures can be modified through chemical reactions to meet specific application requirements. The synthesis process primarily involves three steps:
- Synthesis of epoxy compounds: Bisphenol A epoxy resin is commonly used as the raw material.
- Hydroxylation reaction: Appropriate hydroxyl-containing compounds are added to react with the epoxy groups.
- Hydrogenation reaction: A catalyst is introduced to replace hydroxyl groups with hydrogen atoms, forming functionalized hydrogenated epoxy resins.
II. Preparation Methods
The preparation methods for synthetic hydrogenated epoxy resins vary and can be tailored to specific needs. One common approach involves using bisphenol A epoxy resin as the base material. Styrene (a compound with double bonds) is added for pre-polymerization, followed by hydroxylation with hydroxyl-containing compounds. Finally, a hydrogenation catalyst is applied to achieve the target product.
Alternatively, liquid epoxy resins can serve as raw materials. Liquid compounds with double bonds (e.g., acrylic acid) are used for pre-polymerization, followed by hydroxylation and hydrogenation steps.
Other variations include pre-polymerization with alcohols, ketones, or other compounds, subsequent hydroxylation, and hydrogenation to produce the final resin.
III. Application Fields
Due to their excellent properties, synthetic hydrogenated epoxy resins are widely used in diverse industries:
- Coatings: They provide strong adhesion, wear resistance, and chemical resistance, suitable for automotive, marine, and construction coatings.
- Electronics: Used in high-performance electronic encapsulants, such as circuit board adhesives and chip protective layers.
- Aerospace: Employed in high-temperature, high-strength materials, including satellite antenna supports and aircraft engine components.
- Plastics: Utilized in manufacturing high-strength, high-toughness plastic alloys, such as automotive bumpers and sports equipment.
synthetic hydrogenated epoxy resins are versatile, high-performance materials with broad application prospects. By understanding their synthesis principles, preparation methods, and applications, their potential can be fully leveraged to meet modern societal demands. With technological advancements, innovative applications are expected to emerge, further benefiting human progress.
