Surface Modification of Epoxy Resins with Amino Groups

1、Functionalized epoxy resins for enhanced interface properties and

Covalent and noncovalent modifications are the two main techniques for functionalizing epoxy resins. The addition of hydroxyl (‒OH), amino (‒NH2), or carboxyl (‒COOH) groups through covalent functionalization to the ERs enhances their reactivity, adhesion, and solubility of epoxy resins.

Functionalized epoxy resins for enhanced interface properties and

2、Surface Modification of Epoxy Resins with Amino Groups

Surface modification of epoxy resins with amino groups effectively improves surface hardness, wear resistance, corrosion resistance, and adhesion. With ongoing research and technological advancements, amino-modified epoxy surfaces are poised for expanded applications in high-performance industries.

3、Enhancement of barrier and corrosion protection properties of epoxy

This enhancement is attributed to the surface modifications of nano-silica, which possess abundant hydroxyl and amino groups capable of reacting with the reactive groups in epoxidized eucommia ulmoides gum and epoxy resin.

4、Preparation and Anticorrosive Performance of Waterborne Epoxy Resin

In this work, we report a simple, scalable, and inexpensive approach for the preparation of a novel amino-functionalized GO that is modified by 2,5-diaminobenzenesulfonic acid (DGO), and we use it as a functional filler for a waterborne epoxy resin coating to improve its anticorrosive performance.

Preparation and Anticorrosive Performance of Waterborne Epoxy Resin

Surface modification of an epoxy resin with polyamines and polydopamine

This paper describes the influence of polydopamine and polyamine surface modifications of an etched epoxy cresol novolak (ECN) resin on the initial electroless copper deposition.

Investigation of the chemical changes and mechanism of the epoxy

It is generally agreed that the epoxy groups in epoxy resin react with amino groups to form new C–N and hydroxyl groups during the curing reaction process. However, detailed information...

Amino Resin Modification of Epoxy Resins

Amino resin modification of epoxy resins represents a cutting-edge material enhancement technique. By integrating amino resins, epoxy resins gain superior mechanical, thermal, and chemical properties, enabling diverse applications in electronics, automotive, and aerospace industries.

Effects of Surface Modification with Amino Terminated

The surface of epoxy coating was changed from hydrophilic to hydrophobic property due primarily to a phase separation tendency between epoxy and modifier by the modification. The phase separation tendency is more appreciable when modified by ATP with higher molecular weight ATP at higher content.

Modification of epoxy resin by silane

The main objective of this investigation was to modify an epoxy resin with an amino functional tri-alkoxysilane and to assess the effect of the modification on the various properties of the resin and cured castings.

Modification of epoxy resins with functional silanes, polysiloxanes

Epoxy resins are very important and widely used thermosetting polymers that find many practical applications. Very often their properties can be effectively modified by an addition of reactive silanes, polysiloxanes, silsesquioxanes, silica, montmorillonite, and other fillers.

Research Progress on Surface Modification of Epoxy Resins with Amino Groups

Abstract: With the advancement of industrial technology, epoxy resins (EP) have been widely utilized in composite materials due to their excellent mechanical properties, electrical insulation, and chemical stability. surface treatment of epoxy resins remains a critical limitation to their broader application. This paper reviews recent progress in surface modification of epoxy resins via amino group introduction, including modification methods, effects, and potential applications.

Keywords: Epoxy resin; Surface modification; Amino groups; Research progress

1. Introduction Epoxy resin is a high-performance thermosetting polymer known for its superior mechanical strength, electrical insulation, and chemical resistance. its low surface hardness and poor wear resistance have restricted its use in high-performance materials. Surface modification of epoxy resins, particularly through the introduction of amino functional groups, has emerged as an effective strategy. Amino groups enhance surface hardness, wear resistance, corrosion resistance, and adhesion while preserving the inherent advantages of epoxy resins.

2. Methods for Amino Group Surface Modification of Epoxy Resins 2.1 Chemical Grafting Chemical grafting involves covalently bonding amino-containing monomers or oligomers (e.g., 3-aminopropyltrimethoxysilane [APTES] or 3-aminopropyltriethoxysilane) onto epoxy molecular chains. This method allows precise control over amino group content and distribution, enabling tailored surface properties.

2.2 Physical Vapor Deposition (PVD) PVD deposits amino-containing compounds onto the epoxy surface under high pressure and elevated temperatures. While simple to operate, this method may require significant energy input and risks uneven amino layer formation.

2.3 Plasma-Enhanced Chemical Vapor Deposition (PECVD) PECVD introduces amino groups onto the epoxy surface via plasma-induced reactions. This approach enables precise control over amino group density and distribution without high-temperature processing, preserving the epoxy’s integrity.

2.4 Laser Ablation Laser ablation uses focused light to evaporate and deposit amino-containing precursors onto the epoxy surface. This technique allows precise control of layer thickness and density but requires specialized equipment.

3. Effects of Amino Group Surface Modification 3.1 Enhanced Surface Hardness Amino groups form hydrogen bonds with epoxy chains, strengthening intermolecular interactions and significantly improving surface hardness.

3.2 Improved Wear Resistance The presence of amino groups reduces surface friction coefficients, enhancing wear resistance and minimizing scratch formation.

3.3 Increased Corrosion Resistance Amino groups improve chemical stability, enabling the modified surface to withstand harsh environmental conditions.

3.4 Optimized Adhesion Performance Amino groups facilitate chemical bonding with other materials, enhancing adhesion strength between the epoxy surface and substrates.

4. Application Prospectives of Amino-Modified Epoxy Surfaces 4.1 Electronic Packaging In electronics, amino-modified epoxy substrates exhibit improved adhesion to chips and moisture resistance, prolonging device lifespan.

4.2 Aerospace Engineering For aerospace structures, amino-modified epoxy demonstrates enhanced wear and corrosion resistance, meeting extreme environmental demands.

4.3 Automotive Manufacturing As adhesives in cars, amino-modified epoxy shows superior bonding durability and performance, benefiting automotive assembly.