Composite films prepared from agricultural by-products

0470716 - ÚMCH 2018 RIV GB eng J - Journal Article
Šimkovic, I. - Kelnar, Ivan - Mendichi, R. - Bertok, T. - Filip, J.
Composite films prepared from agricultural by-products.
Carbohydrate Polymers. Roč. 156, 20 January (2017), s. 77-85. ISSN 0144-8617. E-ISSN 1879-1344
Institutional support: RVO:61389013
Keywords : sugar beet residue * bagasse * holocellulose
OECD category: Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics
Impact factor: 5.158, year: 2017

In our study we used holocelluloses from sugar beet and bagasse for film preparation. Films from sugar beet holocellulose have better mechanical properties than from bagasse holocellulose. By subsequent carboxymethylation of bagasse holocellulose, films with better properties were produced. Specimens prepared from combined sugar beet and bagasse carboxymethylated holocellulose had the best mechanical properties. The results could be explained by the ratios of cellulose, arabinan, polygalacturonan and xylan content in individual films, based on the elemental analysis data. The use of microwaves to prepare holocellulose film speed up the process, but negatively affected the mechanical properties. Lignin content of the sugar beet holocellulose and bagasse samples was low and did not affect the mechanical properties. Both types of agricultural by-products could be used for preparation of composite film with high strength and stiffness suitable for broad range of applications.
Permanent Link: http://hdl.handle.net/11104/0270660