期刊
POLYMER
卷 51, 期 13, 页码 2918-2926出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2010.02.014
关键词
Polypropylene nanocomposites; Permeability; Silica nanospheres
资金
- CONICYT [FONDAP 11980002, AT24090014]
In this contribution the permeation behaviour of polypropylene composites containing silica nanospheres of different diameters is reported. The composite materials were produced by melt compounding polypropylene with silica nanospheres, with diameters ranging from 12 to 150 nm, produced using standard sol-gel methods. The permeability of O-2, N-2 and H2O through the materials was tested. The results indicate that the addition of nanospheres with diameters of >= 30 nm results in an increase in the O-2 and N-2 permeability and is directly proportional to the nanosphere diameter. In the case of the water vapour transmission rate, it was found that there is also an increase, but the effect is inversely related with the nanospheres diameter. Incorporation of spheres with a diameter of 12 nm produces a decrease in the permeability of polypropylene composites in all instances, due to its formation of aggregates in composites. (C) 2010 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据