林业工程学报2025，Vol.10Issue(3)：94-104,11.DOI:10.13360/j.issn.2096-1359.202404011
生物基超支化聚硅氧烷的制备及其增韧阻燃MF浸渍纸的研究
Preparation of biobased hyperbranched polysiloxane and study on toughening and flame-retardant melamine-formaldehyde-impregnated paper
摘要
Abstract
As the market for wood-based panels continues to grow,impregnated paper,an important surface decoration material for furniture,wooden flooring,building panels,etc.,has gradually expanded its application in the decoration and construction industries.Among these,melamine-formaldehyde(MF)resin-impregnated paper dominates the market due to its excellent adhesion properties and water resistance,making it a subject of significant research interest.However,the inherent brittleness and poor flame retardancy of conventional MF resins used for impregnation present notable challenges.When substrate materials undergo dimensional changes due to moisture absorption or desorption,MF-impregnated paper is prone to cracking.Additionally,the flammability of MF resin considerably reduces the lifespan and safety of MF-impregnated paper,which restricts its broader application in industries that demand high durability and safety standards.To address these issues,this study focused on the modification of MF resin by synthesizing a novel bio-based hyperbranched polysiloxane(CS@HBPSi)using 3-aminopropyltriethoxysilane,cardanol glycidyl ether,and tannic acid as the primary raw materials.The modified resin was used to impregnate paper,which was then combined with particleboards through a hot-pressing process to fabricate MF/CS@HBPSi-impregnated decorative panels.This study aimed to explore the effects of incorporating CS@HBPSi on the performance of MF resin,MF-impregnated paper,and the final decorative panels.The experimental results revealed that the MF/CS@HBPSi-modified resin exhibited enhanced thermal stability compared to unmodified MF resin.The elongation at break of MF/CS@HBPSi-impregnated paper increased by 124％,indicating superior tensile toughness.Moreover,the flame retardancy of MF/CS@HBPSi-impregnated paper significantly improved,with the limiting oxygen index(LOI)reaching 31.9％and achieving a B1 rating in flame retardant tests(GB/T 2406.3-2022).The cigarette burn resistance also increased to Grade 4.Additionally,the curing temperature of the MF/CS@HBPSi-modified resin was reduced,and the curing time was shortened to half that of the unmodified resin.Furthermore,the abrasion resistance of the MF/CS@HBPSi-impregnated paper panels improved by 25％.The incorporation of bio-based hyperbranched polysiloxane not only enhanced the mechanical and flame-retardant properties of MF-impregnated paper but also improved its decorative functionality.These findings offer valuable insights and open new pathways for the development of advanced materials in the construction industry.关键词
浸渍纸/MF树脂/超支化聚硅氧烷/韧性/阻燃Key words
impregnated paper/MF resin/hyperbranched polysiloxane/toughness/flame retardancy分类
化学化工引用本文复制引用
陈玉连,姜何,胡家俊,郭玺,张彦娟,孙伟圣,张一..生物基超支化聚硅氧烷的制备及其增韧阻燃MF浸渍纸的研究[J].林业工程学报,2025,10(3):94-104,11.基金项目
浙江省自然科学基金(LQ23C160008) （LQ23C160008）
国家自然科学基金(32301678) （32301678）
浙江农林大学科研发展基金(123-203402000101). （123-203402000101）
