文献类型：期刊文献

英文题名：Improvement in Wood Bonding Strength of Poly (Vinyl Acetate-Butyl Acrylate) Emulsion by Controlling the Amount of Redox Initiator

作者：Zhang, Yun[1] Pang, Bo[1] Yang, Sen[1] Fang, Wei[1] Yang, Sheng[2] Yuan, Tong-Qi[1] Sun, Run-Cang[1]

第一作者：Zhang, Yun

通信作者：Yuan, TQ[1]

机构：[1]Beijing Forestry Univ, Beijing Key Lab Lignocellulos Chem, 35 Tsinghua East Rd, Beijing 100083, Peoples R China;[2]Chinese Acad Forestry, Res Inst Wood Ind, 1 Dong Xiao Fu,Xiang Shan Rd, Beijing 100091, Peoples R China

年份：2018

卷号：11

期号：1

外文期刊名：MATERIALS

收录：;EI(收录号：20180304646565);Scopus(收录号：2-s2.0-85040312150);WOS:【SCI-EXPANDED(收录号:WOS:000427764000089)】；

基金：We are grateful for the financial support of this research from the Fundamental Research Funds for the Central Universities (2015ZCQ-CL-02), the National Natural Science Foundation of China (31430092, 31670587).

语种：英文

外文关键词：poly (vinyl acetate-butyl acrylate); redox initiator; emulsion polymerization; core-shell structure

摘要：Polyvinyl acetate emulsion adhesive has been widely used due to its good bonding performance and environmentally friendly properties. Indeed, the bonding performance can be further improved by copolymerizing with other monomers. In this study, the effect of the adjunction of redox initiator (hydrogen peroxide-tartaric acid, H2O2-TA) on the properties of the poly (vinyl acetate-butyl acrylate) (P (VAc-BA)) emulsion adhesive was investigated. With increasing dosage, the reaction became more complete and the obtained film was more compact, as identified via SEM. The core-shell structure of the emulsion particles was confirmed via TEM. Results indicate that while the initiator content increased from 0.5 to 1.0%, a clearer core-shell structure was obtained and the bonding strength of the plywood improved from 2.34 to 2.97 MPa. With the further incorporation of H2O2-TA (i.e., 1.5%), the bonding performance deteriorated. The optimum wood bonding strength (2.97 MPa) of the prepared P (VAc-BA) emulsion adhesive was even better than that (2.55 MPa) of a commercial PVAc emulsion adhesive, suggesting its potential application for the wood industry.