Jie Xu1,3, Jiayao Yang1, Peng Lin2, Xiaohuan Liu1,*, Jinjie Zhang1, Shenyuan Fu1,*, Yuxun Tang2,*
Journal of Renewable Materials, Vol.7, No.12, pp. 1333-1346, 2019, DOI:10.32604/jrm.2019.07905
Abstract It is essential to design economic and efficient tougheners to prepare
high-performance epoxy resin; however, this has remained a huge challenge.
Herein, an eco-friendly, low-cost, and facile-fabricated bio-based hyperbranched
toughener, carboxylic acid-functionalized tannic acid (CATA), was successfully
prepared and applicated to the preparation of solvent-free epoxy resins. The
mechanical performance, morphology, structural characterization, and thermal
characterization of toughened epoxy resin system were studied. The toughened
epoxy resin system with only 1.0wt% CATA reached the highest impact strength,
111% higher than the neat epoxy resin system. Notably, the tensile strength and
elongation at break of toughened More >
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