䓝烷二胺基环氧vitrimer的制备及其性能研究
Preparation of dianediamine-based self-catalyzed self-healing epoxy vitrimer
[目的]热固性材料具有质量轻、力学性能强、耐腐蚀性好等优点,广泛应用于航空航天、交通运输、医疗等领域,但是,以化石资源为原料制备的热固性环氧树脂具有永久三维交联结构,一旦加工成型便难以降解、回收以及再加工,造成了资源浪费及环境污染等问题。本研究利用松节油衍生物䓝烷二胺为原料,制备了生物基可回收环氧vitrimer。[方法]以樟脑酸为原料制备了环氧化樟脑酸(EDCA),并与䓝烷二胺(MDA)固化制备了具有无催化、自修复性能的EDCA-MDA vit…查看全部>>
[Objective]Thermoset materials have the advantages of light weight,strong mechanical properties,good corrosion resistance,etc.,and are widely used in aerospace,transportation,medical and other fields.However,thermoset epoxy resins prepared from fossil resources have a permanent three-dimensional cross-linking structure,and are difficult to be degraded,recycled,and reprocessed once they are processed and molded,which results in a waste of resources and enviro…查看全部>>
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