1、Facile construction of hydrophobically modified epoxy coatings with

The results show that the hydrophobicity of epoxy coating is greatly improved after fluoridation modification of amine curing agent, and the greater the amount ratio fluorinated TiO2 nanoparticles to epoxy resin, the higher hydrophobicity of the modified coating.

2、Hydrophobic Surface Modification of Epoxy Resin Using an Atmospheric

In this work, the treatment of a typical insulating materials epoxy resin for improving surface hydrophobicity using an atmospheric pressure plasma jet (APPJ) in Ar/trimethyl silane (TMS) is...

3、Influence of surface hydrophobicity of epoxy resin coatings

First, this work reported a novel method for surface hydrophobic modification of bisphenol-A Epoxy (EP) resin by adding hydrophilic diethanolamine (DEA) or hydrophobic polymethylhydrosiloxane (PMHS).

4、Hydrophobic Waterborne Epoxy Coating Modified by Low Concentrations of

Fluorinated (meth) acrylate oligomer modified epoxy resin (PHFBMA-DGEBA) and polyether-modified epoxy resin (MPEG-DGEBA) were successfully synthesized and used as reactive modifier and emulsifier for epoxy resins, respectively. GPC, FTIR and 1 H NMR were employed to verify the synthesis.

Enhancement of Moisture‐Resistant Performance of Epoxy Resins via

The introduction of long and flexible polyether chains in epoxy resins is an effective method to improve their toughness. However, using the hydrophilicity/hydrophobicity of polyether chains to tune their moisture resistance has been overlooked currently.

Enhancing bond properties between epoxy resins and cementitious

In summary, a novel approach to enhance the bond properties between epoxy and cement-based materials was proposed in this study: surface hydrophobic modification of the substrate by sprayed silane emulsion prior to grouting with epoxy resin.

Reinforced Superhydrophobic Anti

Then, different content of fluorine-modified SiC (F–SiC) nanoparticles were added to the epoxy resin (EP) matrix to prepare composite coating samples. The results showed that the surface of SiC was modified by FAS to show superhydrophobicity, and the dispersion in EP was significantly improved.

Robust superhydrophobic silicone/epoxy functional coating with

Herein, a double-layer coating strategy consisting of the amino fluorine–silicone resin/epoxy resin (AFSR/EP) system is created. The system features a high hardness and transparent hydrophobic interface adhesive layer through the amine–epoxy “click” chemical reaction.

Influence of Moisture Invasion on the Deterioration of Epoxy Resin

One is to modify the chemical structure of the epoxy resin to reduce its hydrophilicity, including increasing the crosslinking degree of the epoxy resin and using different types of monomers; the other method is to add other substances, such as functional fillers, modifiers, etc.

Hydrophobic surface modification of epoxy resin using an

In this work, the treatment of a typical insulating materials epoxy resin for improving surface hydrophobicity using an atmospheric pressure plasma jet (APPJ) in Ar/trimethyl silane (TMS) is conducted.

In the field of modern materials science, epoxy resins are widely used in industries such as electronics, electrical engineering, and construction due to their excellent mechanical properties, electrical insulation, and chemical stability. their inherent hydrophilic nature makes them susceptible to hydrolysis in humid environments, leading to degraded physical performance and even structural damage. To address this, hydrophobic modification has emerged as an effective strategy, garnering significant attention. This paper explores the necessity, methods, and practical effects of hydrophobic modification of epoxy resins.

I. Necessity of Hydrophobic Modification of Epoxy Resins

1. Expanding Material Application Range: Hydrophobic modification significantly enhances the durability of epoxy resins in extreme humidity environments, broadening their applicability in high-moisture settings, such as marine engineering and underground pipeline networks.
2. Improving Comprehensive Performance: Beyond water resistance, hydrophobic modification can also enhance properties like UV resistance and aging resistance, thereby strengthening the overall performance of the material.
3. Driving Innovation in New Materials: With growing demand for high-performance materials, hydrophobic modification provides a new development direction for epoxy resins, fostering research and application of advanced materials.

II. Methods of Hydrophobic Modification

1. Surface Coating Method: Applying hydrophobic materials, such as polytetrafluoroethylene (PTFE) or nano-silica particles treated with silane coupling agents, onto the epoxy resin surface creates a hydrophobic layer. While simple to implement, this method may require periodic maintenance due to potential instability of the coating.
2. Graft Copolymerization: Chemically grafting hydrophobic groups, such as polyethylene glycol (PEG) or polyacrylic acid (PAA), onto the epoxy molecular chains achieves long-term stable hydrophobicity. Though effective, this approach is complex and costly.
3. Crosslinking Network Method: Introducing crosslinking agents to form a three-dimensional network structure within the epoxy matrix improves water resistance. strict control of crosslinking conditions is essential to avoid compromising other properties.

III. Practical Effects of Hydrophobic Modification

1. Enhanced Water Resistance: Modified epoxy resins exhibit substantially lower water absorption in humid environments, significantly prolonging service life.
2. Improved Comprehensive Performance: Hydrophobic modification also boosts UV resistance and anti-aging properties, enhancing reliability for outdoor applications.
3. Accelerating Material Innovation: This modification strategy opens new research avenues, promoting the development of next-generation high-performance materials.

Hydrophobic modification is a vital approach to improving the water resistance of epoxy resins. By selecting appropriate methods, it is possible to retain the material’s advantages while expanding its application scope to meet demanding requirements. In the future, ongoing technological advancements will likely unlock even broader prospects for hydrophobic modification of epoxy resins.