文献类型：期刊文献

中文题名：薄木-PE复合层积装饰板的制备与性能优化

英文题名：Preparation and properties optimization of veneer-PE laminated decorative panels

作者：刘琼瑶[1] 屈熙[1] 刘小倩[1] 方露[1] 常亮[2]

第一作者：刘琼瑶

机构：[1]南京林业大学家居与工业设计学院,江苏南京210037;[2]中国林业科学研究院木材工业研究所,北京100091

年份：2025

卷号：42

期号：2

起止页码：393-401

中文期刊名：浙江农林大学学报

外文期刊名：Journal of Zhejiang A&F University

收录：;北大核心:【北大核心2023】；

基金：国家木竹产业技术创新战略联盟科研计划项目(TIAWBI2023-04)。

语种：中文

中文关键词：聚乙烯膜;重组装饰薄木;响应面法;浸渍剥离长度;顺纹抗拉强度

外文关键词：polyethylene film;reconstituted decorative veneer;Response Surface Methodology;impregnation peeling length;tensile strength along the grain

分类号：S781

摘要：【目的】以热固性树脂浸渍纸高压装饰层积板(HPL)的层压复合结构为基础,开展薄木-聚乙烯(PE)薄膜复合层积装饰板(WDL)制备工艺的研究,为制备性能优异的无醛复合装饰板提供理论依据。【方法】以PE和重组装饰薄木为原材料,采取顺纹组坯的方式热压复合,制备5层结构的薄木-PE复合层积装饰板,并采用响应面法Box-Behnken模型优化装饰板的热压工艺参数。【结果】热压温度、热压时间对层积装饰板的浸渍剥离性能有显著影响,而热压压力对其浸渍剥离性能没有显著影响。随着热压温度和热压时间的增加,浸渍剥离长度逐渐减小。热压温度和时间、热压时间和压力对装饰板的浸渍剥离性能有显著交互作用。薄木-PE复合层积装饰板的顺纹抗拉强度主要由重组装饰薄木自身的强度和厚度决定,但在热压过程中热压温度也会影响薄木-PE复合层积装饰板的顺纹抗拉强度。结合实际生产,热压温度为160℃、热压时间为109 s、热压压力为1 MPa时,得到的浸渍剥离长度实际值达到0 mm,顺纹抗拉强度达38.2MPa。【结论】本研究制备了新型薄木-PE复合层积装饰板,无游离甲醛释放,其耐水性达到了GB/T 17657—2022《人造板及饰面人造板理化性能试验方法》中Ⅱ类浸渍剥离性能测试要求,可满足普通室内装修领域的需求,且后期饰面过程中无需再次添加胶黏剂,是HPL的升级产品。
[Objective]This study aims to prepare wooden decorative laminates-sheets made from polyethylene film(WDL)based on the laminated composite structure of high-pressure decorative laminates made from thermosetting resins impregnated sheets(HPL),which provides a theoretical basis for the preparation of aldehyde-free composite decorative panels with excellent performance.[Method]Polyethylene film and reconstituted decorative veneer were used as raw materials,and the five-layer structural WDL were prepared by hot pressing in the way of smooth-grain grouping.Box-Behnken Response Surface Analysis was used to study the impact of hot-pressing factors on the impregnation peeling performance and tensile strength of the smooth grain and to optimize the process parameters for the preparation of decorative panels.[Result]The impregnation peeling performance of WDL was affected greatly by hot-pressing temperature and hot-pressing time,while hot-pressing pressure had no significant effect on the impregnation peeling performance.The peeling length gradually decreased with the increase of hot-pressing temperature and hot-pressing time.Hot-pressing temperature and time,hot-pressing time and pressure also had significant interaction effects on the impregnation peeling performance of WDL.The tensile strength along the grain of WDL was mainly determined by the strength and thickness of the reconstituted decorative veneer,and the hot-pressing temperature also affected the tensile strength of WDL.Low temperature could result in inadequate cementation of the reconstituted decorative veneer and PE,and high temperature could lead to degradation of the hemicellulose in the veneer,all of which adversely affect the tensile strength along the grain of WDL.When the hot-pressing temperature was 160℃,the hot-pressing time was 109 s,and the hot-pressing pressure was 1 MPa,the impregnation peeling length of the decorative boards under these conditions reached 0 mm,and the tensile strength of the smooth grain reached 38.2 MPa,which was close to the prediction results of the optimization model.[Conclusion]A new type of veneer-PE laminated decorative panels is prepared,which has no formaldehyde release,and its water resistance meets the requirements of the TypeⅡimmersion peel test according to GB/T 17657-2022.It can meet the needs of general interior decoration field,and there is no need to add adhesive again in the post-finishing process,which is an upgraded product of HPL.