期刊
JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY
卷 50, 期 4, 页码 441-448出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/10601325.2013.768440
关键词
Polymer nanocomposite barriers; plastic barriers; elastomer barriers; polyblend barriers; applications
Nanocomposites are a new class of materials containing ultrafine phase dimensions of the order of nanometers. Due to the size features of the filler, they possess properties not shared by micro and macrocomposites. The dispersed nanofillers are able to form platelets which distributed in a polymer matrix form layers able to produce a tortuous path which works as a barrier structure for gases, water vapors, etc. A high tortuosity leads to higher barrier properties and to a lower permeability. This paper is a brief review of polymer nanocomposite barriers based on different groups of polymers such as plastomers, elastomers and polyblends. A short discussion on their applications in packaging industry, construction, coatings is also presented. Polymer nanocomposite barriers have a positive effect on the environment by reducing mainly packaging waste (metallic, made of glass, etc.) and allowing recycling.
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