1、Advances in Toughening Modification Methods for Epoxy Resins: A
Following the systematic exposition of conventional experimental development and testing methodologies, this study provides a comprehensive synthesis of computational modeling techniques and machine learning applications in epoxy resin development and performance prediction.
2、Thermomechanical analyses and ANN modeling of novel epoxy adhesives
We synthesized epoxy adhesives with different CSR particles ratios (1.25, 2.5, and 3.75 phr) and zinc oxide nanoparticles (1, 2, and 5 phr) using mechanical stirring and ultrasonication (a...
3、改性环氧树脂_百度百科
改性环氧树脂用液体端羧基丁腈橡胶 (CTBN)增韧：一般添加量为10 %，其中CTBN的丙烯腈含量在18-30%较好，其中还可并用30%的二氧化硅，以避免加入CTBN后的强度降低。
Phase morphology modulation of silicone
In this study, phase control of silicones in modified epoxy resins was achieved by modulating the curing process, and a series of silicone-modified epoxy resins with different phase sizes were prepared.
EULG&RPSRVLWHV
epoxy resins. The CSR/SiO2-modified samples exhibited significantly higher E’ compared to the pure epoxy resin, with C6-Si-E demonstrating the maximum value. This is mainly because the interaction between SiO2 and epoxy resins could be more effectively embedded in the crosslinked curing epoxy resin network system, limiting the chain segment ...
Synergy between Phenoxy and CSR Tougheners on the Fracture
In this work, we study the effect of the synergistic combination of two different kinds of toughening agents on the performance of a highly cross-linked epoxy resin and the corresponding structural composites.
Effect of Core–Shell Rubber Nanoparticles on the Mechanical
The aim of the research was to estimate the effect of core–shell rubber (CSR) nanoparticles on the tensile properties, fracture toughness, and glass transition temperature of the epoxy and epoxy-based carbon fiber reinforced polymer (CFRP).
A novel photocurable modified epoxy resin for high heat resistance
The epoxy resin modified with DMPA has better polarity than those traditional epoxy resins. Moreover, the rich amount of hydroxyl groups gives more reactive reaction sites, so that modified epoxy resins with different functions can be easily prepared.
A novel photocurable modified epoxy resin for high heat
In this paper, in order to further improve the heat resistance of UV-curing epoxy cresol novolac (EOCN), 2,2-bis (hydroxymethyl)propionic acid (DMPA) was firstly introduced to open epoxy groups in EOCN and then the hydroxyl groups reacted with acryloyl chloride to make sure the resin has sufficient UV-curing double bonds.
我院复合材料学科方向在《Polymer Composites》发表最新
本文针对环氧树脂断裂韧性低的缺点，选择了碳纳米纤维(CNF)和纳米二氧化硅(SiO2)两种纳米填料，纳米级填料可以很好地分散在环氧树脂中，然后在基体中传递和分散应力，从而增强增韧。
In modern industrial and construction fields, the performance of materials directly impacts the quality and safety of engineering projects. Epoxy resins have become preferred materials in numerous domains due to their exceptional adhesion properties, mechanical strength, and excellent electrical insulation. traditional epoxy resins often suffer from limitations such as insufficient heat resistance and poor resistance to chemical corrosion. To address these issues, researchers have developed modified epoxy resin CSJR-2 through a series of improvements, offering superior comprehensive performance.
The development of CSJR-2 originated from the need to expand the application range of traditional epoxy resins and the urgent demand for enhanced performance. Under high-temperature environments, conventional epoxy resins tend to soften or crack, restricting their use in aerospace, automotive manufacturing, and other fields. Additionally, exposure to chemicals like acids and alkalis can degrade epoxy resins, compromising structural safety. developing a modified epoxy resin capable of maintaining stability under extreme conditions is critical.
The preparation of CSJR-2 involves multiple steps. First, high-performance phenolic resin is selected as the base material due to its chemical stability and ability to enhance mechanical strength. Next, nano-silica powder, carbon fibers, or glass fibers are incorporated as fillers to improve thermal stability and fatigue resistance. Coupling agents are then used to optimize interfacial interactions between fillers and the resin, boosting overall composite performance. Finally, curing agents are added to adjust the cross-linking density of the epoxy resin, ensuring the final product meets specific requirements.
The key characteristics of CSJR-2 include:
- High-temperature resistance: Maintains physical integrity at temperatures up to 200°C.
- Corrosion resistance: Effectively withstands exposure to acids, alkalis, and other chemicals, extending material lifespan.
- Electrical insulation: Suitable for electronic packaging and insulating coatings.
- Processing versatility: Exhibits good machining performance and paintability, facilitating post-processing and assembly.
CSJR-2 has diverse applications:
- Aerospace: Used for bonding and protective coatings in aircraft engine components to enhance heat and corrosion resistance.
- Automotive manufacturing: Employed in body structure adhesives and sealants to ensure stability under complex conditions.
- Electronics: Functions as encapsulation material for electronic components, preventing moisture and contaminant intrusion.
- Construction: Serves as a high-performance adhesive and coating to improve durability and aesthetics.
Despite its advantages, CSJR-2 faces challenges such as improving environmental sustainability, reducing production costs, and expanding market adoption.
As an innovative material, CSJR-2 has significantly benefited modern industries and construction. With ongoing technological advancements, future developments in modified epoxy resins are expected to provide even stronger support for various sectors.
