Chemical degradation of carbon fiber reinforced bismaleimide resin composites to recover carbon fiber and nitrogen doped carbon materials

被引：34

作者：

Wang, Yuqi ^{[1
,2
,3
]}

Li, Jinlong ^{[1
,2
,3
]}

Zhou, Xianxian ^{[4
]}

Wang, Te ^{[5
]}

Zhao, Qi ^{[1
,2
,3
]}

Zhang, Hui ^{[1
,2
,3
]}

Wang, Yingxiong ^{[1
,2
,3
]}

Hou, Xianglin ^{[1
,2
,3
]}

机构：

[1] Chinese Acad Sci, Shanxi Engn Res Ctr Biorefinery, Inst Coal Chem, Taiyuan 030001, Peoples R China

[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China

[3] Chinese Acad Sci, Inst Coal Chem, CAS Key Lab Carbon Mat, Taiyuan 030001, Peoples R China

[4] Taiyuan Univ Technol, Coll Chem & Chem Engn, 79 West Yingze Ave, Taiyuan 030024, Peoples R China

[5] Xi An Jiao Tong Univ, Sch Chem Engn & Technol, 28 Xianning West Rd, Xian 710049, Peoples R China

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2020年 / 199卷

基金：

中国国家自然科学基金;

关键词：

Chemical degradation; Carbon fiber; Bismaleimide resin; Nitrogen doped carbon material; Aerobic oxidation; CURED EPOXY-RESIN; DECOMPOSITION;

D O I：

10.1016/j.compscitech.2020.108342

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

Carbon fiber reinforced bismaleimide resin (CF/BMI) composites were recycled by chemical methods. The degradation of bismaleimide (BMI) resin was achieved in subcritical acetic acid. The C-N bonds of BMI resin were selectively cleaved by Ca(NO3)(2). The results show that NO3- presents strong oxidizing ability in subcritical acetic acid and Ca(2+)was beneficial to the oxidation of NO3-. The carbon fibers can be totally reclaimed from CF/BMI composites. The degradation products of BMI resin were partly carbonized due to the strong oxidation and high reaction temperature. However, the degradation products can be used to produce nitrogen doped carbon materials. The nitrogen doped carbon materials were used to catalyze the aerobic oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-diformylfuran (DFF). The work developed a promising strategy for the full-component recycling of waste CF/BMI composites.

引用

页数：8

共 23 条

[11] Insight into the role of potassium hydroxide for accelerating the degradation of anhydride-cured epoxy resin in subcritical methanol [J].