DBD plasma assisted atomic layer deposition alumina barrier layer on self-degradation polylactic acid film surface

作     者：Haiying WEI Hongge GUO Meili ZHOU Lei YUE Qiang CHEN 魏海英;郭红革;周美丽;岳蕾;陈强

作者机构：Beijing Institute of Graphic Communication Qi Lu University of Technology Institute of Shandong Art Shandong Communication & Media College 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2019年第21卷第1期

页      面：72-78页

核心收录：

学科分类：08[工学] 0827[工学-核科学与技术] 

基　　金：supported by National Natural Science Foundation of China (Nos. 11775028, 11505013) Beijing Municipal National Science Foundation (Nos. 4162024, KM201510015009) the Collaborative Innovation Center of Green Printing & Publishing Technology (No. 20160113) 

主　　题：DBD PA-ALD PLA Al2O3 

摘      要：In this work, the plastic of polylatic acid(PLA) film is coated by alumina(Al_2O_3)through dielectric barrier discharge plasma assisted atomic layer deposition(DBD PA-ALD) for the proposal of the barrier property enhancement. The influence of ALD Al_2O_3 thickness on properties of barrier, mechanical, optical and degradation is investigated in detail. It is obtained that the growth rate of Al_2O_3 in DBD PA-ALD is as quick as 0.12 nm/cycle. After coated～40 nm Al_2O_3, the water vapor transmission rate of PLA is reduced by two orders of ***, it is noticed that the tension strength of the coated film is improved slightly,whereas the light transmission rate is decreased with the increase of Al_2O_3 thickness. The degradation test shows that Al_2O_3 coating almost does not affect the self-degradation rate of PLA film.