Impregnated Paper-Based Decorative Laminates Prepared from Lignin-Substituted Phenolic Resins

作     者：Marion Thébault Ya Li Christopher Beuc Stephan Frömel-Frybort Edith-Martha Zikulnig-Rusch Larysa Kutuzova Andreas Kandelbauer 

作者机构：Kompetenzzentrum Holz(Wood K Plus)Altenberger Straße 69A-4040LinzAustria University of Life Sciences and Natural Resources(BOKU)Universitäts-und Forschungszentrum Tulln(UFT)TullnA-3430Austria Reutlingen UniversityLehr-und Forschungszentrum Process Analysis&Technology(PA&T)School of Applied ChemistryReutlingenD-72762Germany 

出 版 物：《Journal of Renewable Materials》 (可再生材料杂志（英文）)

年 卷 期：2020年第8卷第10期

页      面：1181-1198页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0706[理学-大气科学] 0805[工学-材料科学与工程（可授工学、理学学位）] 070303[理学-有机化学] 0703[理学-化学] 

基　　金：This work was carried out within the COMET program funded by the Austrian FFG project number 844608 

主　　题：Lignin phenol-formaldehyde resin(PF) decorative laminate impregnated paper 

摘      要：High Pressure Laminates(HPL)panels consist of stacks of self-gluing paper sheets soaked with phenol-formaldehyde(PF)*** important requirement for such PFs is that they must rapidly penetrate and saturate the paper *** substituting phenol with bio-based phenolic chemicals like lignin changes the physico-chemical properties of the resin and affects its ability to penetrate the *** this study,PF formulations containing different proportions of lignosulfonate and kraft lignin were used to prepare paper-based *** penetration of a Kraft paper sheet was characterized by a recently introduced,new device measuring the conductivity between both sides of the paper sheet after a drop of resin was placed on the surface and allowed to penetrate the *** main target value measured was the time required for a specific resin to completely penetrate the defined paper sample(“penetration time).This penetration time generally depends on the molecular weight distribution,the flow behavior and the polarity of the resin which in turn are dependent on the manufacturing conditions of the *** the present study,the influences of the three process factors:(1)type of lignin material used for substitution,(2)lignin modification by phenolation and(3)degree of phenol substitution on the penetration times of various lignin-phenolic hybrid impregnation resins were studied using a complete twolevel three-factorial experimental *** laminates made with the resins diluted in methanol were mechanically tested in terms of tensile and flexural strains,and their cross-sections were studied by light microscopy.