1、Synthesis and properties of a nonionic water

In this study, we synthesized a B-A-B type epoxy compound with a long hydrophobic alkyl chain connected to the intermediate nitrogen atom, using ethylene glycol diglycidyl ether and 3,4-dimethoxyaniline as raw materials. Subsequently, the epoxy compound was sealed with triethylenetetramine.

2、Hydrophobization of fully bio

Three bio-based additives (hexanoic acid, resveratrol, and a cardanol-based epoxy resin) were studied aiming to enhance the hydrophobicity of the coatings. The curing reaction mechanisms have been extensively explored.

3、Fabrication of a nonionic self

Waterborne epoxy curing agent plays a key part in the waterborne epoxy resin coatings, directly affecting the physical and chemical properties of the coating film.

4、High‐Performance Epoxy Adhesives for Underwater Application

In this paper, we developed a novel epoxy resin (EP) underwater adhesive by incorporating hydrophobic-modified curing agents and hydrophobic fumed silica. The curing agents were formulated by blending phenolic amine 810 with polyamide 651 (PA651), ensuring a balanced combination to enhance the adhesive's performance.

5、Amino Terminated Polyoxypropylene As Curing Agent: Molecular Design

Amino terminated polyoxypropylene (ATPOP) represents a critical class of polyetheramine curing agents widely employed in epoxy resin formulations, offering unique combinations of flexibility, low-temperature curability, and hydrophobic characteristics. This polyether-based curing agent features primary amine end groups attached to a polyoxypropylene backbone, enabling ambient-temperature ...

Preliminary Results on Preparation and Performance of a Self

Water-based epoxy resin and water-based epoxy curing agent were the two essential components of a water-based epoxy system. The ultimate performance of the cured film was determined by their structure and the effectiveness of the curing process.

Effect of Curing Agent Type on Curing Reaction Kinetics of Epoxy Resin

In this paper, low molecular weight polyamides, aromatic amines and anhydrides were selected as three kinds of curing agents and their isothermal viscosity-time properties were studied to...

Curing reactions of epoxy powder coatings in perspectives of chemical

The properties of the cured products of epoxy powder coatings are dominated by the curing systems. This review discusses the types, reaction principles, characteristics of curing agents and accelerators that participate in the curing reaction with different epoxy resins.

The epoxy resin system: function and role of curing agents

Curing agents are critical components of aqueous epoxy resin systems. Unfortunately, its uses and applications are restricted because of its low emulsifying yields. Epoxy resins are frequently used in electrical devices, castings, packaging, adhesive, corrosion resistance, and dip coating.

Preliminary Results on Preparation and Performance of a Self

Water-based epoxy resin and water-based epoxy curing agent were the two essential components of a water-based epoxy system. The ultimate performance of the cured film was determined by their structure and the effectiveness of the curing process.

In modern industry, the selection and application of materials are critical, particularly for those required to withstand extreme environmental conditions such as high temperatures, humidity, or corrosive gases. The choice of curing agent is especially pivotal in such scenarios. Hydrophobic epoxy resin curing agents emerged against this backdrop, enhancing material weather resistance, mechanical strength, and chemical stability, enabling their widespread use across numerous fields.

Hydrophobic epoxy resin curing agents are specialized epoxy resins characterized by the incorporation of hydrophobic groups. These groups effectively repel water, significantly improving waterproof performance. This property has made hydrophobic epoxy curing agents indispensable in industries like architectural waterproofing, automotive manufacturing, and electronic encapsulation.

From a chemical composition perspective, hydrophobic epoxy curing agents typically consist of epoxy resin, hardener, catalyst, filler, and other additives. The epoxy resin serves as the base, providing essential physical and chemical properties post-curing. The hardener promotes cross-linking reactions between epoxy groups to form a three-dimensional network structure. Catalysts accelerate this process, while fillers enhance mechanical strength by filling gaps in the resin. Hydrophobic groups, are the key to imparting waterproof capabilities.

When selecting hydrophobic epoxy curing agents, several factors must be considered:

1. Substrate Type: Different substrates demand specific curing agents. For metal surfaces, adhesion-strong agents are preferred, while plastics or composites require formulations compatible with their matrices.

2. Environmental Conditions: Waterproof performance correlates with temperature and chemical resistance. Thus, the curing agent’s stability under these conditions must be evaluated.

3. Cost-Effectiveness: While high-performance curing agents may have higher upfront costs, their durability and reduced maintenance needs often yield long-term economic benefits.

4. Ease of Application: Depending on施工 efficiency (e.g., manual coating vs. mechanical spraying) and convenience, certain curing agents may be pre-mixed or tailored for specific methods.

5. Environmental Standards: Increasingly stringent eco-regulations necessitate curing agents that comply with green chemistry requirements.

A prominent automotive manufacturer illustrates this point: by adopting a specific hydrophobic epoxy curing agent, they enhanced vehicle waterproofing and corrosion resistance. This curing agent maintained stability under high temperatures, prolonging vehicle lifespan and improving safety in harsh weather when used in automotive coatings.

Beyond automotive applications, hydrophobic epoxy curing agents are widely employed in construction. Examples include roof waterproofing, basement moisture protection, and electronic device encapsulation—applications where preventing water infiltration safeguards structural integrity and product reliability.

hydrophobic epoxy curing agents have become indispensable in modern industry due to their unique waterproof properties and versatility. As technology advances and market demands evolve, these agents are poised to develop toward higher performance, multifunctionality, and environmental sustainability.