文献类型：期刊文献

英文题名：Improvement of the Performance of Plantation Wood by Grafting Water-Soluble Vinyl Monomers onto Cell Walls

作者：Qiu, Hongbo[1,2] Yang, Sheng[3] Han, Yanming[2] Shen, Xiaoshuang[2] Fan, Donbin[2] Li, Gaiyun[1,3] Chu, Fuxiang[3]

第一作者：Qiu, Hongbo

通信作者：Li, GY[1];Li, GY[2];Chu, FX[2]

机构：[1]Chinese Acad Forestry, Res Inst Forestry New Technol, 1 Dongxiaofu Xiangshan Rd, Beijing 100091, Peoples R China;[2]Chinese Acad Forestry, Res Inst Wood Ind, Key Lab Wood Sci & Technol Natl Forestry & Grassl, 1 Dongxiaofu Xiangshan Rd, Beijing 100091, Peoples R China;[3]Chinese Acad Forestry, Res Inst Wood Ind, Hunan Collaborat Innovat Ctr Effect Utilizing Woo, 1 Dongxiaofu Xiangshan Rd, Beijing 100091, Peoples R China

年份：2018

卷号：6

期号：11

起止页码：14450-14459

外文期刊名：ACS SUSTAINABLE CHEMISTRY & ENGINEERING

收录：;EI(收录号：20184406022378);Scopus(收录号：2-s2.0-85055679654);WOS:【SCI-EXPANDED(收录号:WOS:000449577200093)】；

基金：The authors are very grateful for financial support from the National Key Research and Development Program of China (2017YFD0600203).

语种：英文

外文关键词：Water-soluble vinyl monomers; Grafting; Cell walls; Plantation wood

摘要：The accomplishment of lightweight reinforcement of wood through an environmentally friendly approach has been seen as a tough nut to crack for a long time. In this study, a novel method inserting water-soluble vinyl monomers into wood cell walls followed by in situ polymerization was proposed. The distributions of the modifiers in the wood cell walls and the graft mechanism between water-soluble vinyl monomers and wood cell wall components were thoroughly investigated. Results indicated that the water-soluble vinyl monomers could effectively permeate into the wood cell walls and connected with the hydroxyl groups of the lignin and polysaccharides via covalent bonds. The lumen of the wood remained unfilled during the modification process, and just a 40% weight gain was achieved. However, a 68.37% antiswelling efficiency was achieved after a water-soluble vinyl monomer treatment under the optimized condition (when 20 wt % of NMA was coadded). The modulus of rupture and modulus of elasticity of the corresponding material increased 20.2% and 38.0%, respectively, compared with those of the untreated one.