文献类型：期刊文献

英文题名：Mussel-inspired polydopamine modification of bamboo flour for superior interfacial compatibility of bamboo plastic composites: influence of oxidant type

作者：Song, Wei[1,2,3] Zhang, Shuangbao[1] Fei, Benhua[2] Zhao, Rongjun[3]

第一作者：Song, Wei

通信作者：Song, W[1];Zhang, SB[1];Fei, BH[2];Zhao, RJ[3]

机构：[1]Beijing Forestry Univ, Beijing Key Lab Wood Sci & Engn, MOE Key Lab Wooden Mat Sci & Applicat, Beijing 100083, Peoples R China;[2]Int Ctr Bamboo & Rattan, Beijing Bamboo & Rattan Sci & Technol, Key Lab Natl Forestry & Grassland Adm, Beijing 100102, Peoples R China;[3]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China

年份：2021

卷号：28

期号：13

起止页码：8567-8580

外文期刊名：CELLULOSE

收录：;EI(收录号：20213010676335);Scopus(收录号：2-s2.0-85110989109);WOS:【SCI-EXPANDED(收录号:WOS:000675782600002)】；

基金：This work was supported by the Beijing Natural Science Foundation (6202024) and the Science & Technology Research and Development Program of Guizhou Forestry Administration for Rural Industrial Revolution and Characteristic Forestry Industry (GZMC-ZD20202112). The authors would like to express gratitude to Dr. Liqing Wei and Dr. Hui Li for their suggestions to improve the writing.

语种：英文

外文关键词：Bamboo flour; Surface modification; Bamboo plastic composite; Interfacial bonding; Polydopamine

摘要：Bamboo flour (BF) was modified with mussel-inspired polydopamine adhesive coatings to achieve better compatibility with high-density polyethylene (HDPE) in BF/HDPE composites. Polydopamine was synthesized from dopamine by using various oxidants, e.g., O-2, CuSO4, NaIO4, (NH4)(2)S2O8, and FeCl3. Modification improved physicochemical features of BF. The BF with O-2-oxidized polydopamine showed the largest increase in surface energy and thermal degradation peak temperature. The greatest increase in wettability, surface roughness, and specific surface area was observed for BF modified with (NH4)(2)S2O8-, CuSO4-, and NaIO4-oxidized polydopamine, respectively. Due to the enhanced BF-HDPE interaction, composites made from modified BF provided better physicomechanical properties in comparison to composites prepared with unmodified BF. The composites prepared with O-2-oxidized polydopamine presented the best internal adhesion, water resistance, mechanical properties, and the highest glass transition temperature. The highest heat distortion temperature and thermal degradation activation energy appeared in composites with NaIO4-oxidized polydopamine. Composites with (NH4)(2)S2O8-oxidized polydopamine possessed the highest melting peak temperature. Overall, O-2-oxidized polydopamine was considered the most suitable for compatibilizing composites BF/HDPE.