Effect of biobased fillers nature on biodeterioration of hybrid polyethylene composites by mold fungi

The paper is devoted to investigation of deterioration of natural fillers and polyethylene composites on their basis (polyethylene/filler=70/30) due to the action of mold fungi. The fillers chemical composition, dimensional parameters and biodegradability have been analyzed as factors exert a consid...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2017-06, Vol.213 (1), p.12011
Main Authors: Mastalygina, E E, Popov, A A, Pantyukhov, P V
Format: Article
Language:English
Subjects:
Additives
Biodegradability
Biofouling
Chemical composition
Composite materials
Fillers
Flax
Fungi
Keratin
Mold
Polyethylene
Polyethylenes
Polymer matrix composites
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Summary:The paper is devoted to investigation of deterioration of natural fillers and polyethylene composites on their basis (polyethylene/filler=70/30) due to the action of mold fungi. The fillers chemical composition, dimensional parameters and biodegradability have been analyzed as factors exert a considerable impact on composite materials biodeterioration. It has been found that the principal factor determining the biodeterioration of polyethylene/filler composites by mold fungi is chemical composition of a filler and, in turn, its biodegradability. The excess of holocellulose content over lignin content and high protein content in a filler are able to induce biofouling of the polymeric composite materials. The presence of soluble and easy hydrolysed fraction in a filler increases its availability in a polymeric matrix. According to the study results, most effective natural fillers as additives stimulating polyethylene composites biodegradability are milled straw of seed flax and hydrolyzed keratin of bird's feather.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/213/1/012011