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

2017 Global Conference on Polymer and Composite Materials

材料科学;化学

Mastalygina, E.E.^1,2 ; Popov, A.A.^1,2 ; Pantyukhov, P.V.^1,2

Department of Chemistry and Physics, Plekhanov Russian University of Economics, 36 Stremyanny Lane, Moscow

117997, Russia^1

Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 4 Kosygina Street, Moscow

119334, Russia^2

关键词: Biodeterioration;    Chemical compositions;    Dimensional parameters;    Polyethylene composites;    Polymeric composite materials;    Polymeric matrices;    Principal factors;    Protein contents;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/213/1/012011/pdf
DOI  :  10.1088/1757-899X/213/1/012011

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

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.