The Effect of Plasticizer on Mechanical Properties and Chemical Structure of Chitosan-Starch Film Composites
| Main Authors: | Suseno, Natalia, Savitri, Emma , L., Andrew |
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| Format: | BookSection PeerReviewed application/pdf |
| Terbitan: |
Department of Chemical Engineering Institut Teknologi Sepuluh Nopember (ITS) Surabaya, Indonesia
, 2012
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| Subjects: | |
| Online Access: |
http://repository.ubaya.ac.id/29791/1/The%20Effect%20of%20Plasticizer%20on%20Mechanical_2012.pdf http://repository.ubaya.ac.id/29791/ |
Daftar Isi:
- Plasticizer is an additive for plastic to improve its elasticity and flexibility. In this experiment, the composites based on chitosan-starch were synthesized at different weight ratios (7/3; 8/2; 9/1; 10/0) by using 12.28 – 24.24% volume of glycerol as plasticizer. This paper studies the influence of plasticizer on mechanical and chemical properties of chitosan-starch plastic film. The films were observed on the aspect of mechanical characteristic (tensile strength, elongation at break), and % swelling. The mechanical characteristic of the film were characterized by autograph and swelling test. The alteration of chemical structure was studied by FTIR. The results showed the higher of chitosan-starch ratio increased the tensile strengh and the elasticity of film but decreased in % swelling. Otherwise, the addition of plasticizer increased the elasticity of film and % swelling. These results suggested that these two film forming components were an interaction existed, a greater intensity was observed and the amino group band of chitosan molecule in the FTIR spectrum shifted from 1601 cm−1 in the chitosan film to 1590 cm−1 in composite films.