Composites containing acetylated wheat B-starch for agriculture applications

Plant, Soil and Environment

Kotek J.¹  Kruliš Z.¹  Růžek L.¹  Šárka E.¹  Ekrt O.:¹  Hrušková K.¹  Voříšek K.¹  Koláček J.¹  Růžková M.¹ 

关键词: biodegradable plastic;    polycaprolactone;    ethylene vinyl acetate copolymer;    image analysis;    green waste compost;   

DOI  :  

学科分类：农业科学（综合）

来源: Czech Academy of Agricultural Sciences

【 摘 要 】

Native and acetylated B-starch was used in biodegradable films after blending with either poly-(ε-caprolactone) (PCL) or ethylene vinyl acetate copolymer (EVA). The following mechanical characteristics of prepared films were derived from the stress-strain curves: Young modulus, yield stress, stress-at-break and strain-at-break. Acetylation of starch molecules in the composites reduced the degradation rate in compost. Optical microscopy, combined with the image analysis system NIS-Elements completed with extended depth of focus (EDF) module, was used to study the PCL/starch and EVA/starch films surface morphology during composting. Parameters of the compost used for film exposition were measured.

【 授权许可】

Unknown