1、Preparation and characterization of polyurethane composite modified
To develop a bonding material suitable for colored anti-skid road surfaces, this study prepared a composite modified epoxy resin by modifying epoxy resin with polyurethane, nano-SiO2, and diluent 669.
2、Self
In this work, a self-healable and highly stretchable epoxy resin system with high heal efficiency is designed and prepared by the composite of UPy-modified epoxy resin and UPy-terminated supramolecular polymers.
3、Research on Properties of Silicone
Based on this, the paper selects bisphenol, an epoxy acrylate, as the matrix and uses chemical grafting to study the heat resistance, mechanical properties, and micromorphology of the modified epoxy resin.
Polyimide
In this study, a series of polyimide-modified epoxy resin composite films (NPMFs) was developed and applied as protective coatings. The polyimide-modified epoxy resin was designed through cross-linking reactions between epoxy resin and polyimide, forming the film material.
Eco
To address these issues, in this study, we reported a facile and green approach for preparing epoxy-terminated polyurethane (EPU)-modified epoxy resins with different EPU contents. It was found that the toughness of the epoxy resin was significantly improved after the addition of EPU.
Development of waterborne epoxy
Water-based coating has gained much attention globally due to environmental issues. This work aims to develop a waterborne epoxy coating incorporated with modified natural rubber (NR) latex for...
Properties of polyurethane
With polyurethane modification of diglycidyl-4, 5-epoxycyclohexane-1, 2-dicarboxylate (TDE-85), tetrahydrocannabinol glycidyl phthalate (711) and phenol-based epoxy propane (E-51), three...
Optimizing dielectric, mechanical, and thermal properties of epoxy
This study introduces three molecular modifications to epoxy resin systems using facile synthesis procedures, including modifiers with bulky groups and crosslinking potential to reduce the dielectric constant while enhancing mechanical and thermal reliability, along with deep traps to increase breakdown strength.
Research for Epoxy Modified Polyurethane Resin Technology
The epoxy modified polyurethane resin can be prepared under the catalyst action of isocyanate monomer and linear thermoplastic polyurethane elastomer and bisphenola epoxy resin.
Eco
To address these issues, in this study, we reported a facile and green approach for preparing epoxy-terminated polyurethane (EPU)-modified epoxy resins with different EPU contents. It was found that the toughness of the epoxy resin was significantly improved after the addition of EPU.
Among the myriad materials in modern industry, epoxy resin stands out due to its exceptional mechanical properties, electrical insulation, and chemical stability. It is not only a critical matrix for coatings, adhesives, and composites but also an indispensable material in electronic encapsulation, medical devices, and aerospace applications. These superior characteristics enable epoxy resin to play a pivotal role in numerous high-tech fields. further enhancing its performance to meet increasingly stringent application requirements has become a goal pursued by researchers and enterprises. In this context, the study of modified epoxy resin materials is particularly significant.
The development of modified epoxy resin materials aims to improve their inherent properties by adding specific modifying components, such as enhancing thermal resistance, strengthening mechanical properties, and reducing water absorption. Common modification methods include filling modification, blending modification, nano-modification, and functionalized modification.
Filling Modification involves incorporating inorganic or organic fillers to enhance the mechanical strength and thermal stability of epoxy resin. For example, carbon black can significantly improve the tensile strength and flexural modulus of epoxy resin, while glass fibers increase its hardness and wear resistance. Although these fillers effectively improve performance, they also increase the material's density and cost. optimizing filler utilization without sacrificing too much performance is a key challenge in filling modification research.
Blending Modification combines epoxy resin with another high-performance polymer to achieve better overall properties. For instance, blending polyetheretherketone (PEEK) with epoxy resin retains the high toughness of epoxy resin while imparting excellent thermal and chemical resistance. This approach leverages the advantages of both materials, enabling complementary and optimized performance.
Nano-Modification introduces nanoparticles to enhance epoxy resin properties. Nanoparticles possess unique surface and volume effects that alter the microstructure and interfacial properties of epoxy resin. For example, incorporating graphene nanoplatelets significantly improves thermal conductivity, tensile strength, and compressive strength. Nano-modification unlocks unprecedented potential for performance enhancement in epoxy resin.
Functionalized Modification endows epoxy resin with new functionalities tailored to specific applications. By introducing photoinitiators, thermochromic materials, or bioactive molecules, epoxy resin can be engineered into smart materials or self-healing materials. These modified materials exhibit special responsiveness and behavior under specific conditions, revolutionizing fields like electronics and smart wearable devices.
The research and application of modified epoxy resin materials demonstrate the boundless possibilities of materials science. With continuous advancements in new material technologies, we can confidently expect future modified epoxy resin materials to become more diverse and intelligent, bringing greater surprises and convenience to human society. In this process, researchers and enterprises must continually explore and innovate to drive the development of modified epoxy resin technologies and meet growing application demands.
