1、Biobased epoxy resins obtained from resorcinol epoxy monomer and
DGER is obtained by diglycidylation of resorcinol, an aromatic diol synthesized by fermentation of glucose or catechin. The curing process of DGER in the presence of various anhydrides as hardeners and several imidazole initiators is studied.
2、Epoxy Resin from Renewable Phenols and Furfuraldehyde and Resorcinol: A
The adhesive samples include resorcinol-based phenolic epoxy resin with phenalkamine (RP), resorcinol-based phenolic epoxy resin with low viscous phenalkamine (RPL), resorcinol-based phenolic epoxy resin with polyamide (RPA), and resorcinol-based phenolic epoxy resin with triethylrnrtetramine (RT).
3、Resorcinol
Synthesis of fully eco-friendly thermosets based on renewable resorcinol diglycidyl ether (RE) hardenered with different biobased diamines having aliphatic, cyclic, or aromatic backbones were prepared.
4、Ionic Liquid
Used as a glue for more than 70 years, resorcinol-fromaldehyde resins (RFs) are inexpensive organic polymers synthesized by condensation between formaldéhyde and resorcinol.
Epoxy–resorcinol resin composite protects against corrosion and
A Chinese research team has introduced a novel composite coating system that combines epoxy resin (EP) with resorcinol–formaldehyde resin (RF). The aim was to address persistent challenges of corrosion and microbial fouling on ships and marine installations.
Dual UV
This study has developed novel fully bio-based resorcinol epoxy resin–diatomite composites by a green two-stage process based on the living character of the cationic polymerization.
Synthesis and Characterization of Fiber
In our present study, we have synthesized resorcinol-based diglycidyl ether, that is, a resorcinol-based epoxy resin, and further acrylated to the resorcinol epoxy acrylate oligomer.
Resorcinol–formaldehyde resin combining epoxy resin as composite
In this work, a bifunctional composite coating combining epoxy resin (EP) and RF filler was successfully synthesized and applied for the anti-corrosion and anti-biofouling resistance of Q235 carbon steel.
Renewable resources based on tetrafunctional epoxy resin: synthesis
A modified tetrafunctional phenolic epoxy resin was synthesized by utilizing furfuraldehyde with partial substitution of 50% renewable alternatives such as cardanol and resorcinol. It represents a novel approach by the synthesis of conventional phenol and replacing toxic substances such as formaldehyde.
Ionic Liquid‐Modified Resorcinol Formaldehyde Resins: Synthesis and
Used as a glue for more than 70 years, resorcinol‐fromaldehyde resins (RFs) are inexpensive organic polymers synthesized by condensation between formaldéhyde and resorcinol.
Epoxy resin, a thermosetting polymer primarily composed of bisphenol A, is widely utilized in electronics, construction, and automotive industries due to its excellent mechanical properties, electrical insulation, and chemical stability. its brittleness, poor temperature resistance, and challenging processing characteristics restrict its application in broader fields. To address these limitations, resorcinol (commonly known as BHT, though this abbreviation typically refers to butylated hydroxytoluene; here, it likely denotes resorcinol as a modifier) has been introduced into epoxy systems to enhance their comprehensive performance.
The research and development of resorcinol-modified epoxy resins aim to improve heat resistance, mechanical strength, and toughness while maintaining or enhancing the inherent electrical insulation properties. This modification strategy not only expands the application scope of epoxy resins but also advances material science innovation.
Mechanism of Resorcinol Introduction Resorcinol modifies epoxy resins through physical or chemical interactions with hydroxyl groups in the matrix. Physical methods include mechanical mixing or ultrasonic treatment, while chemical approaches involve using resorcinol as a cross-linker or curing accelerator. These modifications reduce thermal decomposition risks, enhance thermal stability, and improve mechanical strength and impact resistance.
Performance Optimization Optimizing resorcinol-modified epoxy resins involves multiple strategies:
- Adjusting Resorcinol Content/Type: Precise control over heat resistance, mechanical strength, and electrical insulation.
- Resin Formulation Modifications: Altering monomer ratios, incorporating functional fillers, or integrating nanocomposites to boost overall performance.
- Processing Parameters: Curing temperature and time significantly influence the final properties.
Applications Resorcinol-modified epoxy resins exhibit notable advantages in practical use:
- Electronic Packaging: High heat resistance and electrical insulation make it ideal for encapsulation materials.
- Aerospace: Lightweight yet high-strength properties enhance composite structural reliability.
- Wear/Corrosion Protection: Superior wear resistance and corrosion resistance suit it for wear-resistant coatings and anti-corrosion paints.
Challenges Despite its benefits, resorcinol-modified epoxy resin remains costly due to the high price of resorcinol and strict process controls required for effective modification. Reducing production costs and improving cost-efficiency are critical future research focuses.
Future Prospects With advancements in material science and growing market demands, resorcinol-modified epoxy resins and their derivatives hold vast potential. By refining formulations, optimizing manufacturing processes, and leveraging cutting-edge materials technology, high-performance, cost-effective epoxy products could emerge, offering reliable solutions across industries.
