为阐明浸渍胶膜纸饰面对刨花板性能的影响,本文以进口与国产两种刨花板为研究对象,采用相同热压工艺对其进行三聚氰胺浸渍胶膜纸双面压贴处理,参照GB/T17657-2022《人造板及饰面人造板理化性能试验方法》对饰面前后主要的理化性能进行检测分析.结果表明:饰面后两种刨花板的吸水厚度膨胀率显著降低,饰面刨花板的静曲强度、弹性模量、表面胶合强度、内胶合强度和握螺钉力等较饰面前均有不同程度的提升.此外,两种刨花板饰面后甲醛释放量显著降低,分别下降73.4%和58.0%.浸渍胶膜纸饰面不仅可以提高刨花板的物理力学性能,同时还能降低甲醛的释放,饰面处理对拓展刨花板高附加值利用具有重要意义.
To clarify the effect of impregnated decorative paper on the property of particleboard,this paper focuses imported and domestic of particleboard.The same hot pressing process is used for double-sided pressing treatment of melamine impregnated film paper.Referring to GB/T 17657-2022 Test Methods of Evaluating the Properties of Wood-based Panels and Surface Decorated Wood-based panels,the physical and chemical properties of particleboard before and after surface decorated are tested and analyzed.The results showed that the water absorption thickness expansion rate of the two types of particle boards significantly decreased after surface decorated;The bending strength,modulus of elasticity,and screw holding capability of particleboard after surface decorated have all been improved to varying degrees.In addition,the formaldehyde release was significantly reduced by 73.4%and 58.0%after surface decorated.Impregnated decorative paper can not only improve the physical and mechanical properties of particleboard,but also reduce the release of formaldehyde,which is of great significance for expanding the high value-added application range of particleboard.