Department of Industrial Engineering, University of Salerno, Fisciano (SA), Italy.
J Colloid Interface Sci. 2013 Apr 15;396:47-52. doi: 10.1016/j.jcis.2013.01.006. Epub 2013 Jan 24.
A simple and scalable deposition process was developed to prepare polylactic acid (PLA) coatings with enhanced water barrier properties for food packaging applications. This method based on electrostatic interactions between the positively charged layers of layered double hydroxides (LDHs) modified with ionic liquids (ILs) and the negatively charged plasma treated polylactic acid leads to homogeneous, stable, and highly durable coatings. Deposition of the LDH coatings increases the surface hydrophobicity of the neat PLA, which results to a decrease in water permeability by about 35%.
一种简单且可扩展的沉积工艺被开发出来，用于制备具有增强的水阻隔性能的聚乳酸（PLA）涂层，以应用于食品包装。该方法基于带正电荷的层状双氢氧化物（LDHs）层与经离子液体（ILs）改性后的带正电荷的层之间的静电相互作用，以及带负电荷的等离子体处理的聚乳酸之间的静电相互作用，从而得到均匀、稳定且高度耐用的涂层。LDH 涂层的沉积增加了纯 PLA 的表面疏水性，导致水渗透率降低约 35%。
