Cardanol derived benzoxazine in combination with boron-doped graphene toward simultaneously improved toughening and flame retardant epoxy composites

Wenwen Guo, Xin Wang, Chandra Sekhar Reddy Gangireddy, Junling Wang, Ying Pan, Weiyi Xing, Lei Song, Yuan Hu

科研成果: 期刊稿件文章同行评审

130 引用 (Scopus)

摘要

A bio-based phosphorus-containing benzoxazine monomer (CBz) was successfully synthesized through the reaction between cardanol and DOPO-based diamine. In order to simultaneously improve the toughness and flame retardancy of epoxy resin (EP), various contents of CBz in combination with boron-doped graphene (BG) nanosheets were incorporated into EP to obtain boron-doped graphene/cardanol derived benzoxazine-epoxy composites (EP/CBz/BG). By comparison, cardanol derived benzoxazine-epoxy co-polymers (EP/CBz) were also fabricated. Results show that the addition of the as-prepared CBz into EP not only endowed EP with excellent flame retardancy, but also improved the glass transition temperature and impact strength. Specifically, the peak heat release rate of EP composite with 13 wt% CBz and 2 wt% BG decreased by 48% compared to that of neat EP, accompanying with an increase of impact strength by 22%. These favorable features of EP/CBz/BG composites are attributed to the unique structure of CBz and high resistance to thermal decomposition of BG.

源语言英语
页(从-至)13-23
页数11
期刊Composites Part A: Applied Science and Manufacturing
116
DOI
出版状态已出版 - 1月 2019
已对外发布

指纹

探究 'Cardanol derived benzoxazine in combination with boron-doped graphene toward simultaneously improved toughening and flame retardant epoxy composites' 的科研主题。它们共同构成独一无二的指纹。

引用此