Effects of fatty acid modified epoxy resin on long-chain epoxy and its physical properties

IF 2.702 Q1 Materials Science
Hye Jin Kim, Manseok Yoon, Bongkuk Seo, Choong-Sun Lim
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引用次数: 0

Abstract

The tendency of epoxy resins to form three-dimensional structures can make them brittle, which restricts their use in various applications even if they have great mechanical properties. Due to the expansion of epoxy resin application to electric automotives and aerospace as carbon fiber resistance plastics (CRFPs), it is desirable to synthesize epoxy resins that is more impact resistant. Herein, the synthesis of flexible epoxy resin FMER-F and FMER-J is reported. These epoxy resins were based on bisphenol F and J diglycidy ether. The dimeric fatty acid modified epoxy resins (FMERs) were synthesized by reacting acid anhydride modified epoxy resins (AMERs) with dimeric fatty acids. To obtain thermosetting epoxy polymers, the epoxy resin was mixed with a curing agent and an accelerator and, subsequently, it was cured at a high temperature. The mechanical properties of various epoxy polymers were analyzed to evaluate the change in the performance of the materials. The flexural strength of the composition with 10 parts per hundred resin (phr) of FMER-F increased by 21%. The impact strength of the composition with 30 phr of FMER-J increased by 27%. FMERs were found to be used as toughening agents in epoxy resins and composites because of their ability to enhance mechanical properties.

Abstract Image

脂肪酸改性环氧树脂对长链环氧树脂的影响及其物理性能
环氧树脂形成三维结构的倾向会使其变脆,这限制了它们在各种应用中的使用,即使它们具有很好的机械性能。随着环氧树脂作为抗碳纤维塑料(CRFPs)在电动汽车和航空航天领域的应用日益扩大,人们希望合成更耐冲击的环氧树脂。本文报道了柔性环氧树脂FMER-F和FMER-J的合成。这些环氧树脂是基于双酚F和J二水解醚。采用酸酐改性环氧树脂(AMERs)与二聚体脂肪酸反应,合成了二聚体脂肪酸改性环氧树脂(FMERs)。为了获得热固性环氧聚合物,将环氧树脂与固化剂和促进剂混合,然后在高温下固化。分析了各种环氧聚合物的力学性能,评价了材料性能的变化。含10份/百树脂(phr)的FMER-F组合物的抗弯强度提高了21%。30phr的FMER-J复合材料的冲击强度提高了27%。FMERs因其能提高机械性能而被用作环氧树脂和复合材料的增韧剂。
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来源期刊
CiteScore
5.20
自引率
0.00%
发文量
0
审稿时长
1.8 months
期刊介绍: Part A: Polymer Chemistry is devoted to studies in fundamental organic polymer chemistry and physical organic chemistry. This includes all related topics (such as organic, bioorganic, bioinorganic and biological chemistry of monomers, polymers, oligomers and model compounds, inorganic and organometallic chemistry for catalysts, mechanistic studies, supramolecular chemistry aspects relevant to polymer...
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