文献类型：期刊文献

中文题名：等离子体改性提高塑膜增强柚木柔性薄木的胶合性能机理

英文题名：Reinforced Mechanism of Adhesion Properties of Polyethylene Film Enhanced Teak Decorative Veneer by Plasma Modification

作者：彭晓瑞[1] 张占宽[1]

第一作者：彭晓瑞

机构：[1]中国林业科学研究院木材工业研究所

年份：2018

卷号：46

期号：6

起止页码：89-96

中文期刊名：东北林业大学学报

外文期刊名：Journal of Northeast Forestry University

收录：CSTPCD;;北大核心:【北大核心2017】；CSCD:【CSCD_E2017_2018】；

基金："十三五"国家重点研发计划课题(2016YFD0600702)

语种：中文

中文关键词：等离子体;聚乙烯膜;柚木装饰薄木;剥离强度;表面润湿性;元素(基团);微观结构

外文关键词：Plasma;Polyethylene film;Teak decorative veneer;Peel strength;Surface wettability;Chemical composition;Microscopic structure

分类号：TS653

摘要：为解决塑膜与柚木薄木高温热压复合后界面结合差的问题,采用等离子体改性预处理法提高两者的界面结合特性。通过对等离子体改性前后塑膜与装饰薄木表面润湿性、元素(基团)变化、微观结构变化及复合后剥离强度等的测试分析,研究等离子体改性提高塑膜增强柚木柔性装饰薄木胶合性能机理。结果表明:经等离子体处理后的聚乙烯薄膜表面n(O)∶n(C)增加达11.72倍,极性基团生成活跃是两者界面结合性能提高的最主要原因。同时等离子体处理对两者表面的有效物理刻蚀,可使材料表面粗糙度和自由能增大,接触角降低,润湿性改善,也是有效提高胶合强度的重要原因。等离子体处理塑膜和柚木装饰薄木最优处理功率均为3 kW,处理速度为3 m·min^(-1),其他接触角增幅最大分别达26.02%和36.96%,自由能也明显增大,两者复合剥离强度最优可达0.49k N/m。
To solve the problem of poor bonding interface of the composite plastic film and teak decorative veneer after high temperature hot pressing, we used the low temperature plasma in the plastic film and teak flexible decorative veneer, respectively, before hot pressing, and studied the performance mechanism of the plasma modification to improve the bonding force of the plastic membrane enhanced teak flexible decorative veneer through the static contact angle, XPS and SEM test analysis for the surface wettability of both before and after plasma treatment, the changes of surface element （group） content and the microstructure. The main reason for the improvement of the interface bonding between the LDPE film and decorative veneer interfaces is that the LDPE film surface can generate a lot of polar groups for the amount of O/C ratio can increase by 11.72 time. Plasma treatment can effectively and physically etch the surface of polyethylene film and teak decorative veneer, the surface roughness is increased, the contact angle is decreased, the freedom is increased and the surface wettability is improved. The optimal processing power of the plastic film and teak decorative veneer are both 3 kW, and the processing speed is 3 m·min ^-1 . The largest rise in contact angle of plastic film and teak veneer was 26.02% and 36.96%, respectively, and the surface free energy can be also increased obviously with the peel strength of 0.49 kN/m.