Felton Linda A
University of New Mexico, College of Pharmacy, Albuquerque, NM 87131, USA.
AAPS PharmSciTech. 2007 Dec 21;8(4):E112. doi: 10.1208/pt0804112.
Polymeric film coatings have been applied to solid substrates for decorative, protective, and functional purposes. Irrespective of the reasons for coating, certain properties of the polymer films may be determined as a method to evaluate coating formulations, substrate variables, and processing conditions. This article describes experimental techniques to assess various properties of both free and applied films, including water vapor and oxygen permeability, as well as thermal, mechanical, and adhesive characteristics. Methods to investigate interfacial interactions are also presented.
聚合物薄膜涂层已被应用于固体基材,以实现装饰、保护和功能目的。无论涂层的目的为何,聚合物薄膜的某些性能都可以作为评估涂料配方、基材变量和加工条件的一种方法来测定。本文介绍了评估自由薄膜和应用薄膜各种性能的实验技术,包括水蒸气和氧气渗透性,以及热性能、机械性能和粘附特性。还介绍了研究界面相互作用的方法。