中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Robust, Fire-Safe, Monomer-Recovery, Highly Malleable Thermosets from Renewable Bioresources

文献类型:期刊论文

作者Yuan, Wangchao; Li, Qiong; Ma, Songqi; Wang, Sheng; Zhu, Jin; Wang, Binbo
刊名MACROMOLECULES
出版日期2018
卷号51期号:20页码:8001-8012
关键词Covalent Polymer Networks Epoxy-resin Flame-retardant Degradable Thermosets Full Recyclability Shape-memory Composites Vitrimers Bonds Metathesis
英文摘要Conventional thermosets are built by nonrenewable fossil resources and are arduous to be reprocessed, recycled, and reshaped due to their permanent covalent cross-linking, and their flammability makes them unsafe during use. Here, for the first time, we synthesized a novel Schiff base precursor from abundant and renewable lignin derivative vanillin and produced malleable thermosets (Schiff base covalent adaptable networks (CANs)) combining high performance, super-rapid reprocessability, excellent monomer recovery, and arbitrary permanent shape changeability as well as outstanding fire resistance. The Schiff base CANs exhibited high glass transition temperatures of similar to 178 degrees C, tensile strength of similar to 69 MPa, tensile modulus of similar to 1925 MPa, excellent flame retardancy with UL-94 V0 rating and V1 rating, and high LOI of similar to 30%. Meanwhile, three Schiff base CANs showed high malleability with the activation energy of the bond exchange of 49-81 kJ mol(-1) and could be reprocessed in 2-10 min at 180 degrees C. These Schiff base CANs provide a prime example to foster the development of advanced thermosetting materials from renewable bioresources.
学科主题Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
公开日期2018-12-04
源URL[http://ir.nimte.ac.cn/handle/174433/17117]  
专题2018专题
推荐引用方式
GB/T 7714
Yuan, Wangchao,Li, Qiong,Ma, Songqi,et al. Robust, Fire-Safe, Monomer-Recovery, Highly Malleable Thermosets from Renewable Bioresources[J]. MACROMOLECULES,2018,51(20):8001-8012.
APA Yuan, Wangchao,Li, Qiong,Ma, Songqi,Wang, Sheng,Zhu, Jin,&Wang, Binbo.(2018).Robust, Fire-Safe, Monomer-Recovery, Highly Malleable Thermosets from Renewable Bioresources.MACROMOLECULES,51(20),8001-8012.
MLA Yuan, Wangchao,et al."Robust, Fire-Safe, Monomer-Recovery, Highly Malleable Thermosets from Renewable Bioresources".MACROMOLECULES 51.20(2018):8001-8012.

入库方式: OAI收割

来源:宁波材料技术与工程研究所

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