文献类型：期刊文献

英文题名：Dialdehyde starch reinforced polyacrylate-polyethylene glycol resin for impregnated decorative paper with improved toughness and ultra-low formaldehyde emission

作者：Liu, Ru[1] Liang, Min[1] Xu, Jianfeng[1,2] Wang, Jin[1,3] Long, Ling[1,2] Ni, Yonghao[4]

第一作者：刘如

通信作者：Xu, JF[1];Ni, YH[2]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China;[2]Chinese Acad Forestry, Res Inst Forestry New Technol, Beijing 100091, Peoples R China;[3]Kingdecor Zhejiang Co Ltd, Quzhou 324000, Zhejiang, Peoples R China;[4]Univ New Brunswick, Dept Chem Engn, Fredericton, NB E3B 5A3, Canada

年份：2022

卷号：176

外文期刊名：INDUSTRIAL CROPS AND PRODUCTS

收录：;EI(收录号：20215011313470);Scopus(收录号：2-s2.0-85120829254);WOS:【SCI-EXPANDED(收录号:WOS:000736971600009)】；

基金：This work was supported by the project of the National Nonprofit Institute Research Grant of Chinese Academy of Forestry (NO. CAFYBB2020SY037).

语种：英文

外文关键词：Dialdehyde starch; Impregnation adhesives; Impregnated decorative paper; Toughness; Formaldehyde emission

摘要：To solve the problems of brittleness and formaldehyde emission of melamine-formaldehyde (MF) impregnated decorative paper, a polyacrylate-polyethylene glycol (PEG)-dialdehyde starch (DAS) was used to modify MF. The impregnation adhesive was characterized and the properties of impregnated decorative paper and laminated to plywood were tested. DAS showed better dispersion in the compound resin and higher reactivity with MF compared to the control. The MF can react with active aldehyde groups of DAS by Schiff base reaction and hydroxyl groups of polyacrylate, PEG, and DAS. Thus, the cross-linked structure was formed in the impregnated decorative paper interlayer. At mass ratio of polyacrylate-PEG-DAS:MF= 2:1, the abrasion value, surface bonding strength, fouling capacity of plywood was comparable to MF impregnated decorative paper bonded plywood, improved with crack resistance. In addition, the formaldehyde emission was sharply lowered down with ultra-low value of 0.03 mg/L, which was classified as F* ** * for very high JAS 234:2003 standard (<= 0.3 mg/L).