1、Toward sustainable thermosets: Advances in toughening and degradation
Epoxy resins (EPs) are widely used thermosetting plastics with excellent mechanical and thermal properties. Due to their highly crosslinked network structure, EPs are relatively brittle and non-degradable. Enhancing toughness and degradability are important research topics of sustainable applications for EPs. This review presents a comprehensive analysis of toughening strategies and ...
2、Improving the toughness of thermosetting epoxy resins
In recent years, nanostructured thermosetting resins have been obtained through blending a block copolymer (BCP) with a fine structure with an epoxy resin.
3、Reprocessable and ultratough epoxy thermosetting plastic
Here we show epoxy thermosets with combined high toughness and reprocessability by innovating the chemistry of curing, a crosslinking process in polymers.
4、Advances in Toughening Modification Methods for Epoxy Resins: A
Through a detailed analysis of experimental studies, this paper highlights the effectiveness of various toughening strategies and suggests future research directions aimed at further optimizing epoxy resin toughening techniques for diverse industrial applications.
5、Epoxidized soybean oil modified using fatty acids as tougheners for
Abstract A series of bio‐rubber (BR) reactive tougheners for thermosetting epoxy resins was prepared by grafting renewable saturated fatty acids of different chain lengths (C6‐C14) onto epoxidized ...
A novel composite epoxy resin toughened by epoxy
In this study, EPTS (epoxy-terminated phenyl tris (dimethylsiloxy)silane) was firstly synthesized via the hydrosilylation reaction of phenyltri (dimethylsiloxy)silane and allyl glycidyl ether in one step. EPTS was then mixed and cured with E51 epoxy resin to obtain a composite epoxy resin.
Performance of high
The modified PI resin system exhibited good thermal stability, excellent heat resistance, and high toughness. The results indicated that the TPI/PI blends maintained the curing behavior and characteristics of the PI oligomer.
Toughening Thermosetting Resins with Modified Graphene Oxide
Thermosetting resins are highly crosslinked polymers that exhibit good chemical resistance, high thermal stability, and high modulus after curing.
Intrinsic toughened conductive thermosetting epoxy resins: utilizing
In this work, a uniquely intrinsic toughened thermosetting epoxy resin, namely EPU, was synthesized via integrating a conductive black (CB) and polyurethane system into the traditional thermosetting epoxy resins.
Practical Technology of Toughening Epoxy Resin (II): Modification
During the epoxy curing process, strong intermolecular forces are generated between SEP and epoxy resin, which further enhances the heat resistance of modified epoxy resins. Better insulation of epoxy resin are achieved by adding engineering plastics with fine insulation equipment.
In numerous fields of modern materials science, optimizing material properties has long been a research focus. Among them, thermosetting resins, due to their excellent physical and chemical properties, have been widely applied in industries such as aerospace, automotive manufacturing, electronics, and construction. thermosetting resins often suffer from insufficient toughness and poor heat resistance, which limit their use under extreme conditions. modifying thermosetting resins to enhance their toughness and thermal stability has become an urgent problem to address.
Research on modified thermosetting toughened resins primarily revolves around improving the resin’s toughness through chemical or physical methods and enhancing its stability in high-temperature environments. These studies not only advance materials science but also enable technological progress in related industries.
Chemical Approaches From a chemical perspective, researchers introduce highly reactive monomers, such as epoxy resins and phenolic resins, into thermosetting resins to create composites with higher elastomer content. These elastomers form microcracks during the curing process, thereby improving the material’s toughness. By adjusting the types and ratios of monomers, the mechanical properties of the material can be precisely tailored to meet specific application requirements.
Physical Approaches Physical modification is another critical pathway. For instance, adding nano-fillers like carbon nanotubes or graphene significantly enhances the material’s mechanical performance and heat resistance. These nano-fillers disperse effectively within the resin matrix, forming a three-dimensional network structure that strengthens toughness and fracture resistance. Additionally, they improve thermal stability, reducing the risk of degradation at high temperatures.
Innovative Strategies Beyond traditional methods, novel modification strategies are emerging. For example, incorporating organosilicon compounds introduces flexible chains into the resin, boosting toughness. Using ionic liquids as curing agents also effectively improves both toughness and thermal resistance.
Practical Applications Modified thermosetting toughened resins demonstrate immense potential in real-world use. In aerospace, they are employed in aircraft structural components to withstand high-speed flight and extreme environmental impacts. In automotive manufacturing, these resins reinforce engine parts and vehicle frames, enhancing safety and longevity.
Challenges and Future Prospects Despite significant progress, challenges remain. Achieving quality control and cost-effectiveness in large-scale production, improving environmental performance, and adapting to diverse application demands require further innovation. Overcoming these hurdles will expand the use of modified thermosetting resins in broader fields.
research on modified thermosetting toughened resins is both challenging and opportunity-rich. Through continuous technological innovation and practical exploration, these materials are poised to play a vital role in more domains, contributing significantly to human advancement.
