文献类型：期刊文献

英文题名：Waterborne Lignin-Based Epoxy Resin: A Green and Effective Chemical Cross-Linker to Form Soy Protein-Based Wood Adhesive with High Performance

作者：Huo, Meiyu[1,2] Yang, Zhaozhe[1,3,4] Jin, Can[1,3,4] Huo, Shuping[1,3,4] Wu, Guomin[1,3,4] Liu, Guifeng[1,3,4] Kong, Zhenwu[1,3,4]

第一作者：Huo, Meiyu

通信作者：Liu, GF[1];Liu, GF[2];Liu, GF[3]

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Nanjing 210042, Peoples R China;[2]Nanjing Forestry Univ, Jiangsu Coinnovat Ctr Effcient Proc & Utilizat For, Nanjing 210037, Peoples R China;[3]Natl Forestry & Grassland Adm, Key Lab Chem Engn Forest Prod, Nanjing 210042, Peoples R China;[4]Natl Engn Res Ctr Low Carbon Proc & Utilizat Fores, Nanjing 210042, Peoples R China

年份：2024

卷号：6

期号：7

起止页码：4078-4088

外文期刊名：ACS APPLIED POLYMER MATERIALS

收录：;EI(收录号：20241515868525);Scopus(收录号：2-s2.0-85189546065);WOS:【SCI-EXPANDED(收录号:WOS:001196610700001)】；

基金：This work was supported by the National Natural Science Foundation of China (32271815).

语种：英文

外文关键词：soybean protein; lignin; epoxy resin; wood adhesive; plywood

摘要：Waterborne lignin-based epoxy resin emulsions (WLEPs) bearing poly(ethylene glycols) (PEGs) as hydrophilic and soft segments were successfully prepared without using any solvent, and then the WLEPs were cured with polyamide (PA) and the soybean protein isolate (SPI) to form wood adhesives SPI/WLEP/PA with good bonding performance and water resistance. The WLEPs were uniformly dispersed in the SPI matrix, and the multiple interactions between WLEP, PA, and SPI resulted in a more stable and compact cross-linked network, which was conducive to enhancing the cohesion strength, water tolerance, and thermal stabilities of the SPI-based adhesives. In comparison to the pristine SPI adhesive, the dry and hot water (63 degrees C for 3 h) shear strengths of the plywood formulated with SPI/WLEP/PA (WLEP: 16 wt %) remarkably increased by 137% (3.94 MPa) and 134% (0.75 MPa), respectively, satisfying the demand of interior-use plywood type II. Especially, when the WLEP loading reached 21 wt %, the plywood demonstrated outstanding boiling water strength of 0.77 MPa, higher than the China national standard requirement for exterior-grade plywood type I (>= 0.70 MPa). These results suggested that the WLEPs could serve as a green and effective cross-linker to give SPI-based wood adhesives with high water tolerance and bonding performance.