Preparation of Starch/Phenolic Prepolymer Copolycondensation Adhesive

被引：0
|
作者：
Zuo Y. [1 ]
Tu R. [1 ]
Li P. [1 ]
Zhou Y. [1 ]
Wu Y. [1 ]
机构：
[1] College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha
来源：
Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering | 2020年 / 36卷 / 01期
关键词：
Adhesive; Copolycondensation; Gluing performance; Oxidative grafting; Phenol-formaldehyde oligomers; Starch;
D O I：
10.16865/j.cnki.1000-7555.2019.0326
中图分类号：
学科分类号：
摘要：
Corn starch was oxidized with sodium hypochlorite and grafted with polyvinyl alcohol. And then the copolycondensation was carried out with the phenolic prepolymer to prepared starch/ phenol-formaldehyde oligomers (S/PFO) copolycondensation adhesive. The effects of starch/ phenol-formaldehyde oligomers ratio, copolymerization temperature and copolymerization time on the solid content, viscosity, curing time, dry bonding strength and wet bonding strength of S/PFO copolymerization adhesive were discussed. The results show that the S/PFO copolycondensation adhesive has the best comprehensive properties when the starch/phenol-formaldehyde oligomers ratio is 15/120, the copolymerization temperature is 90℃ and the copolymerization time is 2.0 h. The curing properties and bonding interface of S/PFO copolycondensation adhesive were characterized by simultaneous thermal analysis and scanning electron microscopy. Compared with phenolic resin adhesive, the curing temperature and curing enthalpy of S/PFO copolycondensation adhesive are decreased, which could effectively reduce the production energy consumption. S/PFO copolycondensation adhesive fills the pores of wood surface evenly, forming a thin and continuous film, which is beneficial to improve the bonding strength and water resistance. © 2020, Editorial Board of Polymer Materials Science & Engineering. All right reserved.
引用
收藏
页码：134 / 140
页数：6
相关论文
共 17 条
  • [1] Gao Z.Z., Sun W.S., Preparation of modified cornstarch adhesive for bonding wood, Scientia Silvae Sinicae, 45, 7, pp. 106-110, (2009)
  • [2] Johansson E., Lundstrom L., Norgren M., Et al., Adsorptionbehavior and adhesive properties of biopolyelectrolyte multilayers formed from cationic and anionic starch, Biomacromolecules, 10, pp. 1768-1776, (2009)
  • [3] Qiao Z., Gu J., Zuo Y., Et al., The effect of carboxymethyl cellulose addition on the properties of starch-based wood adhesive, BioResources, 9, pp. 6117-6129, (2014)
  • [4] Nie Y., Tian X., Liu Y., Et al., Research on starch-g-polyvinylacetate and epoxy resin-modified corn starch adhesive, Polym. Compos., 34, pp. 77-87, (2013)
  • [5] Zhang Y., Ding L., Gu J., Et al., Preparation and properties of astarch-based wood adhesive with high bonding strength and water resistance, Carbohydr. Polym., 115, pp. 32-37, (2015)
  • [6] Wang Z.J., Gu Z.B., Hong Y., Et al., Bonding strength and water resistance of starch-based wood adhesive improved by silica nanoparticles, Carbohydr. Polym., 86, pp. 72-76, (2011)
  • [7] Zhou Q., Guo J.N., Zhang J.J., Et al., Study on synthesis of crosslink and graft double modified wood adhesives based on starch, Packaging Engineering, 32, 11, pp. 17-20, (2011)
  • [8] Wang Z., Li Z., Gu Z., Et al., Preparation, characterization and properties of starch-based wood adhesive, Carbohydr. Polym., 88, pp. 699-706, (2012)
  • [9] Sun Y.D., Chen Q.F., Lu S.S., Et al., Recent progress in modification of starch, Materials Review, 30, 21, pp. 68-74, (2016)
  • [10] Shi J.Y., Wen M.Y., Li X.Y., Et al., Research progress of biomass-based formaldehyde-free adhesives, Journal of Forestry Engineering, 3, 2, pp. 1-10, (2018)
12