文献类型：期刊文献

英文题名：Mussel-inspired codepositing interconnected polypyrrole nanohybrids onto cellulose nanofiber networks for fabricating flexible conductive biobased composites

作者：Wang, Zhong[1,2] Zhao, Shujun[1,2] Huang, Anmin[3] Zhang, Shifeng[1,2] Li, Jianzhang[1]

第一作者：Wang, Zhong

通信作者：Zhang, SF[1]

机构：[1]Beijing Forestry Univ, MOE Key Lab Wooden Mat Sci & Applicat, Beijing 100083, Peoples R China;[2]Beijing Forestry Univ, Beijing Key Lab Wood Sci & Engn, Beijing 100083, Peoples R China;[3]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China

年份：2019

卷号：205

起止页码：72-82

外文期刊名：CARBOHYDRATE POLYMERS

收录：;EI(收录号：20184205956236);Scopus(收录号：2-s2.0-85054819016);WOS:【SCI-EXPANDED(收录号:WOS:000450093200008)】；

基金：This work was financially supported by the National Key Research and Development Program of China (2017YFD0601205), the National Natural Science Foundation of China (Project 51779005/E090301) and the Fundamental Research Funds for the Central Universities (NO. 2016ZCQ01).

语种：英文

外文关键词：Cellulose nanofibers; Polypyrrole; Plant-derived protein; Mussel-inspired interfacial strategy; Interconnected network; Flexible conductive composites

摘要：The exploitation of an efficient strategy for preparing flexible green conductive composites with an interconnected filler network is of great scientific and technical interest. Herein, a high-performance interconnected cellulose nanofiber (CNF) template functionalized tannic acid (TA)/polypyrrole (PPy) nanohybrid network (TPy@CNF) is fabricated by a green mussel-inspired co-modification approach. The network offers high electrical conductivity to prepare flexible, plant-derived soy protein isolate (SPI) composites. The mussel-inspired interface design demonstrates versatile functions of a reactive adhesion layer to construct a multiple-bond-regulated interconnected TPy@CNF conducive polymer network architecture without the need for harsh conditions and toxic reagents. This well-defined conducing TA/PPy-encapsulated CNF network is of great benefit in achieving strong synergistic interactions by enhancing electrical conductivity, reducing junction contact resistance, and ensuring efficient load transfer during bending. When integrating 7.5 wt% TPy@CNF, the prepared SPI composites deliver significantly enhanced conductivity of 0.078 S m(-1) along with superior mechanical robustness (improved tensile strength and toughness) and excellent structural stability. This interconnected network design strategy can provide a green yet feasible approach for elaborate construction of CNF/conducting polymers in advanced energy-storage technologies.