Potential use of waste paper for the synthesis of cyanoethyl cellulose: A cleaner production approach towards sustainable environment management
| Autor: | Surendra S. Bisht, Sanjay Naithani, Vikas Rana, Gyanesh Joshi, Vinay K. Varshney |
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| Rok vydání: | 2017 |
| Předmět: |
Renewable Energy
Sustainability and the Environment Strategy and Management Pulp (paper) 02 engineering and technology 010501 environmental sciences engineering.material Degree of polymerization 021001 nanoscience & nanotechnology 01 natural sciences Industrial and Manufacturing Engineering chemistry.chemical_compound Crystallinity chemistry Sodium hydroxide engineering Organic chemistry Fourier transform infrared spectroscopy Solubility Acrylonitrile Cellulose 0210 nano-technology 0105 earth and related environmental sciences General Environmental Science |
| Zdroj: | Journal of Cleaner Production. 142:3759-3768 |
| ISSN: | 0959-6526 |
| DOI: | 10.1016/j.jclepro.2016.10.089 |
| Popis: | Recycling of waste paper was investigated with the aim of boosting the use of recycled materials and reducing the impact of waste paper on environment. Commercially important cyanoethyl cellulose product from waste paper was synthesized successfully through a cycle of chemical treatments. Waste paper was functionalized to cyanoethyl cellulose in an alkaline heterogeneous reaction environment with acrylonitrile under different reaction conditions with respect to degree of substitution. The variables studied were: Sodium Hydroxide and acrylonitrile concentration, reaction time and temperature for alkalization and cyanoethylation. All the cyanoethyl cellulose products were assessed for solubility, degree of polymerization and degree of crystallinity. The optimum conditions for cyanoethyl cellulose synthesis comprised of 8.34 M/anhydro glucose unit aqueous sodium hydroxide concentration, 30 °C alkalization temperature, 60 min alkalization time, 70 M/anhydro glucose unit acrylonitrile concentration, 60 min reaction time for cyanoethylation and 50 °C cyanoethylation reaction temperature. The optimized cyanoethyl cellulose product was characterized with fourier transform infrared spectroscopy, proton magnetic resonance spectroscopy, X-ray diffraction and scanning electron microscopy. This investigation helped to find the proper cleaner production approach towards sustainable environment management by synthesizing valuable cyanoethyl cellulose product and demonstrated that waste paper have the capacity to produce upgraded and high quality cyanoethyl cellulose for variety of applications. |
| Databáze: | OpenAIRE |
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