Microfibril-reinforced composites from PE/PET blends: Effect of reinforcement size on oxygen permeability

被引：11

作者：

Shields, R. J. ^{[1
]}

Bhattacharyya, D. ^{[1
]}

Fakirov, S. ^{[1
]}

机构：

[1] Univ Auckland, Ctr Adv Composite Mat, Private Bag 92019, Auckland 1, New Zealand

来源：

ADVANCES IN COMPOSITE MATERIALS AND STRUCTURES, PTS 1 AND 2 | 2007年 / 334-335卷

关键词：

microfibril-reinforced composite; oxygen permeability;

D O I：

10.4028/www.scientific.net/KEM.334-335.249

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The objective of this study was to manufacture and investigate the properties of barrier films made from microfibril-reinforced polymer composites (MFCs) based on blends of linear low density polyethylene (PE) and poly(ethylene terephthalate) (PET). Blends containing 30 wt% of PET were prepared and extruded into strands. These were then subjected to cold drawing and compression moulded into thin films. The permeability of the films to oxygen gas was measured using a permeation test chamber and the effect of the draw ratio on the size of the reinforcing fibrils was also observed. Scanning electron microscope (SEM) revealed substantial differences in the structures of neat and MFC films. A model developed for predicting the permeability of filled polymer composite films was modified and compared to the test results. The draw ratios of the MFCs did not appear to have a significant effect on oxygen permeation, despite altering the dimensions of the reinforcing fibrils. The MFC films were found to be half as permeable as the neat polymer films.

引用

页码：249 / +

页数：2