Preparation of starch-based polyurethane films and their mechanical properties
β Scribed by Dae-Hyun Kim; Oh-Jin Kwon; Seong-Ryul Yang; Jong-Shin Park
- Publisher
- The Korean Fiber Society
- Year
- 2007
- Tongue
- English
- Weight
- 613 KB
- Volume
- 8
- Category
- Article
- ISSN
- 1229-9197
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Plastic formulations containing up to 40% starch were prepared and blown into thin films using extrusion methods. Extruded films were evaluated for their biodegradability by exposing them to a consortium of starch degrading bacteria in the laboratory for 45 days and in the 'La Silla' river located i
## Abstract The tensile strengths and elongations of starch films prepared from various unmodified and modified starches were measured. These properties were improved by addition of urea and polyvinyl alcohol to the starch paste. The results obtained were as follows. The heating temperature great