关键词: 塑膜, 装饰薄木, 塑膜增强柔性装饰薄木, 卷曲变形, 影响因素

Abstract: [Objective] In order to control the curl deformation and solve the key industrial production technical problems of the new type waterproof plastic membrane enhanced flexible decorative veneer,this study adopts different kinds of decorative veneers to glue with plastic film by hot pressing under different conditions,and with the curl radius of curvature for the characterization of indicators,so as to explore the influence factors of crimped and control mechanism of the plastic film enhanced decorative veneer,and to provide theoretical basis and practical support for the manufacturing and using of the flexible decorative veneer.[Method] Using red oak as experimental material,the paper studied the influences of the hot-pressing temperature,thickness ratio of plastic film and moisture content of decorative veneer on the curl deformation of the plastic film enhanced decorative veneer.And using red oak,rosewood,teak and northeast China ash as materials,the curl deformation of different kinds of decorative veneer species was also studied in this research.[Result] The results show that the effect of hot-pressing temperature is remarkable.The more the hot-pressing temperature increased,the greater the curvature radius of deformation is.With the increase of the thickness of the decorative veneer and the decrease of the thickness of plastic film,the curly curvature radius increase.Therefore,considering the veneer facing production,it is advisable to choose the plastic film thickness of 0.3 mm.The moisture content has miner influence on curl,while the decorative veneer sliced with the big density and compact microstructure wood,can be relatively small with the curling deformation.[Conclusion] The thermal pressure temperature has a significant influence on the curl deformation of the plastic film enhanced flexible decorative veneer.In actual production,it should be considered to reduce the thermal pressure temperature as much as possible to increase the radius of curvature and reduce the crimping deformation.The thickness of the decorative veneer and plastic film has a great influence on the crimped deformation,and the thickness selection should be combined with the specific situation of production,in general,the thicker the thickness of the decorative veneer is and the thinner the thickness of the plastic film is,the smaller the curl will be.This paper provides an important idea for controlling the curling deformation of the double layer thin composite material.

Key words: plastic film, decorative veneer, plastic film enhanced flexible decorative veneer, crimp property, influence factors