浸渍胶膜纸覆贴超薄纤维板工艺对其表面胶合强度的影响  

Effect of Pressing Process of Impregnated Paper on Surface Bonding Strength of Ultra-Thin Fiberboard

作　　者：卢泽潭 魏明[1] 刘亮先 闵德秀 李坚[1] 肖少良 LU Zetan;WEI Ming;LIU Liangxian;MIN Dexiu;LI Jian;XIAO Shaoliang(Engineering Research Center of Advanced Wooden Materials,Ministry of Education,Northeast Forestry University,Harbin 150040,Heilongjiang,China;Shandong Xingang Enterprise Group Co.,Ltd.,Linyi 276000,Shandong,China)

机构地区：[1]东北林业大学木质新型材料教育部工程研究中心,黑龙江哈尔滨150040 [2]山东新港企业集团有限公司,山东临沂276000

出　　处：《木材科学与技术》2024年第6期15-22,31,共9页Chinese Journal of Wood Science and Technology

基　　金：2023年山东省重大创新工程项目“特种木质新材料制造关键技术”(ZQTYB240700001);“十四五”重点研发计划课题任务“绿色超薄木质复合材料制造关键技术”(2023YFD2201404);“超薄纤维板在人造板基材贴面工艺技术的研究”(HKF230700010);泰山产业领军人才工程专项经费资助。

摘　　要：超薄纤维板是近年来开发的一种高精深加工和高附加值的木质新材料,具有厚度薄、密度高和表面质量平整光洁的特点,已经广泛应用于饰面材料领域。为了探究三聚氰胺浸渍胶膜纸覆贴超薄纤维板(简称饰面板)的关键参数及表面胶合性能机制,设置L16(45)正交试验探讨热压温度、时间和压力工艺因素,以及单因素试验分析超薄纤维板砂光工艺、初始含水率对饰面板表面胶合强度的影响。结果表明,饰面板的表面胶合强度主要受热压温度的影响,试验优化条件(热压时间10 s、温度205℃、压力2.7 MPa)下,表面胶合强度达到最大值1.95 MPa。采用180目砂光带处理超薄纤维板的表面胶合强度比未砂光的能提高1.5倍;超薄纤维板的初始含水率在8%左右时,表面胶合强度最佳。同时,扫描电镜(SEM)、接触角结果表明超薄纤维板在砂光处理后表面更加粗糙,初始含水率在8%左右时亲水性更强,有利于超薄纤维板与三聚氰胺浸渍胶膜纸形成更强的机械互锁作用和界面润湿作用。The ultra-thin fiberboard,a novel wood material made with high precision,advanced processing,and high added value,has emerged in recent years.This material features a thin thickness,high density,and a smooth surface,making it widely applicable in the decorative materials industry.To investigate the critical parameters and the underlying mechanism of surface bonding performance for melamine-impregnated film paper-coated ultra-thin fiberboard,an L16(45)orthogonal test was conducted to examine the effects of hot-pressing temperature,time,and pressure.Additionally,single-factor tests were employed to analyze the impact of the sanding process and the initial moisture content of the ultrathin fiberboard on the surface bonding strength of the melamine-impregnated film paper-coated ultra-thin fiberboard.The results indicated that the surface bonding strength was primarily affected by the hotpressing temperature.Under the optimal conditions(hot pressing time:10 seconds,temperature:205°C,pressure:2.7 MPa),the surface bonding strength reached its maximum value of 1.95 MPa.The surface bonding strength of ultra-thin fiberboard with 180-mesh sanding was 1.5 times higher than that without sanding.When the initial moisture content of the ultra-thin fiberboard was approximately 8%,the surface bonding strength was optimal.Furthermore,SEM and contact angle analysis revealed that sanding treatment increased surface roughness,while an initial moisture content of approximately 8%enhanced hydrophilicity,facilitating stronger mechanical interlocking and interfacial wetting between the ultra-thin fiberboard and the melamine-impregnated film paper.

关 键 词：超薄纤维板 热压工艺 砂光工艺 初始含水率 浸渍胶膜纸 表面胶合强度 

分 类 号：TS653.6[轻工技术与工程]