Characterization and application of methylcellulose and potato starch blended films in controlled release of urea
-
Keshak Babu
and
Vinod Kumar Saxena
Abstract
Biodegradable blended films from methylcellulose (MC) and potato starch (PST) have been developed by the casting process. In the present work the influences of concentrations of MC and PST on rheological properties, swelling, mechanical properties such as tensile strength, percentage elongation at break and water vapor transmission rate (WVTR) of the prepared blended films have been studied. Fourier transform infrared (FTIR) analysis of pure MC, PST, their mixture and the mixture with glutaraldehyde and urea was performed to investigate the interactions in blended films. The blended films of MC and PST showed an increase in tensile strength due to the cross linking reactions of the amylopectin molecule of PST in the physical gel state. The change of percentage elongation at break increased with MC concentration and the opposite trend was found in the case of the WVTR due to the network structure of the blended films. The blended films showed a large improvement in the abovementioned properties compared with each single component, due to the interaction formed between hydroxyl groups of PST and the methoxy groups of MC. Experiments were also conducted to investigate the controlled urea release through blended films and the kinetics of the process. Interesting results were found with the prepared MC and PST blended films.
Acknowledgments
The authors gratefully acknowledge the financial assistance provided by the Department of Chemical Technology, Sant Longowal Institute of Engineering and Technology, Sangrur, India. The authors also acknowledge the Department of Chemical and Petroleum Engineering, Indian School of Mines, Dhanbad, India, due to a required facility for preparation of the manuscript. Thanks are also extended to all individuals associated with the project.
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©2015 by De Gruyter
Articles in the same Issue
- Frontmatter
- Review
- Oligomers with structural elements of imidazolidinetrione obtained from oxamic acid and oxamide: polyurethane foams modified by structural elements of imidazolidinetrione
- Original articles
- Group contribution modeling of viscosity during urethane reaction
- Peroxide vulcanization of natural rubber. Part II: effect of peroxides and co-agents
- Evaluation of long-term stability and degradation on polycarbonate based plastic glass
- Designing, characterization, and thermal behavior of triazine-based dendrimers
- Processing and characterization of electrospun trans-polyisoprene nanofibers
- Effect of electric field on gas-assisted melt differential electrospinning with hollow disc electrode
- Physicochemical characteristics of poly(piperazine-amide) TFC nanofiltration membrane prepared at various reaction times and its relation to the performance
- Characterization and application of methylcellulose and potato starch blended films in controlled release of urea
- The interaction of sodium carboxymethylcellulose with gelatin in the absence and presence of NaCl, CaCl2 and glucose
Articles in the same Issue
- Frontmatter
- Review
- Oligomers with structural elements of imidazolidinetrione obtained from oxamic acid and oxamide: polyurethane foams modified by structural elements of imidazolidinetrione
- Original articles
- Group contribution modeling of viscosity during urethane reaction
- Peroxide vulcanization of natural rubber. Part II: effect of peroxides and co-agents
- Evaluation of long-term stability and degradation on polycarbonate based plastic glass
- Designing, characterization, and thermal behavior of triazine-based dendrimers
- Processing and characterization of electrospun trans-polyisoprene nanofibers
- Effect of electric field on gas-assisted melt differential electrospinning with hollow disc electrode
- Physicochemical characteristics of poly(piperazine-amide) TFC nanofiltration membrane prepared at various reaction times and its relation to the performance
- Characterization and application of methylcellulose and potato starch blended films in controlled release of urea
- The interaction of sodium carboxymethylcellulose with gelatin in the absence and presence of NaCl, CaCl2 and glucose
