基于聚乙烯木塑复合材的水披覆转印法装饰

Decoration Technology with the Water Transfer Printing for Polyethylene Wood Plastic Composite Material

为提高水披覆转印法装饰的聚乙烯(PE)木塑复合材表面装饰效果和附着力,从分析水披覆转印膜正反面的接触角、润湿速率入手,结合等离子体处理手段,探究了处理时间、表面张力、附着力等因素对转印效果的影响,得出基于PE木塑复合材的水披覆转印法装饰最佳工艺过程及参数。结果表明:正面润湿速率较小而反面润湿速率较大的转印膜转印效果较佳;等离子体处理时间为15 min最佳,PE木塑基材表面和底漆面的表面张力分别提高至48、46 mN·m^(-1),木塑表面的漆膜附着力可达0级;经转印膜装饰后的PE木塑表面带有实木纹理,色泽饱满,明显改善了装饰性和实用性。

To improve the surface decoration and adhesion of PE wood plastic composite material, the water transfer printing technology was used to decorate the surface of PE. Contact angle and wetting rate of the printing film were applied to study the effect of plasma treated time, surface tension and adhesion on the transfer printing effect. The optimum technological process and parameters based on PE wood plastic composite material of the water transfer printing technology were figured out. The transfer printing effect was better when the wetting rate was lower on the obverse side and bigger on the reverse side. The best plasma treated time was 15 min. The surface tension of PE wood plastic composite based material and primer were increased to 48 and 46 mN · m-1, respectively, and the adhesion reached a level 0. The surface of PE wood plastic transferred by printing film was with wood grain, bright color and luster, and the decoration and practicality were significantly improved.