Fully bio-based reprocessable thermosetting resins based on epoxidized vegetable oils cured with itaconic acid

编号 020036403

推送时间 20221010

研究领域 林产化工 

年份 2022 

类型 期刊 

语种 英语

标题 Fully bio-based reprocessable thermosetting resins based on epoxidized vegetable oils cured with itaconic acid

来源期刊 Industrial Crops and Products

期 第364期

发表时间 20221001

关键词 Reprocessable;  Fully biobased Epoxy Thermosets;  Curing;  Thermomechanical properties; 

摘要 Nowadays, biomass-derived monomers production and thermosets' recyclability are the two main efforts in the development of sustainable thermosetting epoxy resins to replace fossil derivatives and mitigate landfill build-up and ecological impact. Here, we propose a simple step and benign synthesis strategy by using the itaconic acid (IA) and two epoxidized vegetable oils (EVOs), linseed and soybean, in order to obtain fully bio-based materials with high carbon bio-content. The reactivity of these formulations, together with the properties of obtained thermosets were investigated and compared with that of DGEBA/IA homologous system. The EVOs/IA reactive mixtures show high reactivity, tested by differential scanning calorimetry (DSC) and Fourier-transformed infrared spectroscopy (FT-IR) while the obtained resins display good mechanical properties, high thermal stability as well as resistance to solvents. Due to the transesterification reaction in the polyester-based networks, recycling abilities tested both mechanically and chemically were proven. The fully reprocessed bio-based thermosets displayed almost unchanged thermomechanical properties and chemical structure combined with a simple and green chemical processing.

服务人员 尚玮姣

服务院士 宋湛谦

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