文献类型：期刊文献

英文题名：Renewable benzoxazine-based thermosets from cashew nut: Investigating the self-healing, shape memory, recyclability and antibacterial activity

作者：Bo, Caiying[1] Sha, Ye[2] Song, Fei[3] Zhang, Meng[1] Hu, Lihong[1] Jia, Puyou[1] Zhou, Yonghong[1]

第一作者：Bo, Caiying

通信作者：Jia, PY[1]

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Key Lab Biomass Energy & Mat, 16 Suojin North Rd, Nanjing 210042, Jiangsu, Peoples R China;[2]Nanjing Forestry Univ, Coll Sci, Dept Chem & Mat Sci, Nanjing, Peoples R China;[3]Nanjing Forestry Univ, Coll Chem Engn, Nanjing 210037, Peoples R China

年份：2022

卷号：341

外文期刊名：JOURNAL OF CLEANER PRODUCTION

收录：;EI(收录号：20220711648834);Scopus(收录号：2-s2.0-85124611738);WOS:【SCI-EXPANDED(收录号:WOS:000773638700005)】；

基金：Acknowledgements This work was sponsored by the National Natural Science Founda-tion of China (No. 31901256) and Jiangsu Key Laboratory for Biomass Energy and Materials (JSBEM-S-202006) .

语种：英文

外文关键词：Cardanol-based benzoxazine thermosets; Self-healing; Shape memory; Recyclability; Antibacterial activity

摘要：The preparation of sustainable bio-based polybenzoxazines with multifuctional applications is highly desirable but still challenging. Here, we propose a facile strategy to address this dilemma by introducing dioxaborolane bonds into the benzoxazine network. Renewable dynamic cardanol-based polybenzoxazine networks were prepared using the renewable waste material, cardanol (a byproduct of cashew nut processing), as the starting material and fabricated by incorporating dioxaborolane bonds. The dioxaborolane-containing cardanol-based benzoxazine thermosets (PCBOz-DBs) showed excellent reprocessability, self-healing property, shape memory behavior, and antibacterial activity. PCBOz-DBs have a controllable mechanical strength in a wide range between stretchability (elongation at break: over 587%) and stiffness (tensile strength: 5.88 MPa), as well as an excellent shape memory performance, by tailoring dioxaborolane bond content without catalyst. The polymer has a strong tissue-adhesive property and can firmly adhere to a variety of substrates, such as metal, plastic, and glass. PCBOzDBs showed inhibition rates of 95.61% and 99.98% against Escherichia coli and Staphylococcus aureus, respectively. Moreover, the distinct network makes PCBOz-DB recyclable over multiple times without compromising its property, showing significant and self-healing properties under relatively low temperature (100 ?) and short healing time (5 min). The prepared PCBOz-DB, which is reusable, recyclable, and renewable, can achieve the goal of cleaner production by using bio-renewable biomass and reducing petrochemical resources, production, and energy emissions.