Summary
Published in Polymers & Polymer Composites 24(6): 387-394
The utilization of clays to enhance the water vapour barrier properties of polyethylene requires knowledge about factors associated with the constituents themselves. Hence, this paper presents combinations of two types of polyethylene and five different clays. Morphological, mechanical and thermal properties related to the water vapour permeability of clay/polyethylene composites were investigated. Although no evidence of clay exfoliation was observed according to morphological and spectral results, it was found that the enhanced water vapour barrier properties were linked to the clay aspect ratio, composites interface, polyethylene crystallinity and storage conditions. The best water vapour barrier properties were obtained by increasing polyethylene crystallinity with unmodified clay of high aspect ratio. Organoclays addition showed no improvement in barrier properties of polyethylene unless the interface was strongly compatibilized. Contrary to the results published elsewhere, clay addition brought about no mechanical improvements to polyethylene tested.
Sector(s):
Forests
Categorie(s):
Scientific Article
Theme(s):
Forestry Research, Forests, Seeds and Forest Seedlings Production
Author(s)
HU, Lei, Éric LECLAIR, Mado POULIN, Fabienne COLAS, Patrick BALDET and Pascal Y. VUILLAUME
Year of publication :
2016
Format :
PDF available upon request
How to get the publication :
Keywords :
polymère, argile, nano technologie, propriétés barrière, contenant, conservation des graines, production de semences et de plants, article scientifique de recherche forestière, HDPE, seeds and forest seedlings production, polymer, clay, nano technology, barrier properties, container, seed conservation
