Biodegradability and Mechanical Properties of Poly(vinyl alcohol)-Based Blend Plastics Prepared Through Extrusion Method

被引：17
|
作者：
Kopcilova, Martina [1 ]
Hubackova, Jitka [1 ]
Ruzicka, Jan [1 ,2 ]
Dvorackova, Marie [1 ]
Julinova, Marketa [1 ,2 ]
Koutny, Marek [1 ,2 ]
Tomalova, Miroslava [1 ]
Alexy, Pavol [3 ]
Bugaj, Peter [3 ]
Filip, Jaroslav [1 ]
机构：
[1] Tomas Bata Univ Zlin, Dept Environm Engn, Fac Technol, TGM Sq 275, Zlin 76272, Czech Republic
[2] Ctr Polymer Syst, Zlin 76001, Czech Republic
[3] Slovak Univ Technol Bratislava, Dept Plast & Rubber, Inst Polymer Mat, Bratislava 81237 1, Slovakia
来源：
JOURNAL OF POLYMERS AND THE ENVIRONMENT | 2013年 / 21卷 / 01期
关键词：
Poly(vinyl alcohol); Xanthan; Gellan; Biodegradation; POLYVINYL-ALCOHOL; GUM-POLY(VINYL ALCOHOL); MICROSPHERES; HYDROGELS; DELIVERY; RELEASE; GELLAN; FILMS;
D O I：
10.1007/s10924-012-0520-8
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Plastic blend materials consisting of poly(vinyl alcohol), glycerol and xanthan or gellan were prepared through laboratory extrusion. Their base mechanical properties were compared with the properties of poly(vinyl alcohol) foil and their biodegradability in soil, compost and both activated and anaerobic sludge were assessed. In samples with lower polysaccharide content (10-21 %w/w) the tensile strength of 15-20 MPa was found; the elongation at break of all blends was relatively close to the parameter of poly(vinyl alcohol) foil. The biodegradability levels of the blends tested corresponded to the content of natural components, and the mineralization of the samples with the highest carbohydrate proportion (42 %) reached 50-78 %, depending on the type of the environment. Complete biodegradation of all samples occurred in activated sludge.
引用
收藏
页码：88 / 94
页数：7
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