The degradation behaviors of optical cellulose triacetate films in alkali/acid solutions
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Jian’an Wang
Abstract
In this research, the degradation behaviors of ramie-based cellulose triacetate (CTA) films in alkali or acid solutions at room temperature were assessed. Moreover, the attenuated total reflection infrared (ATR-IR), physicochemical properties testing, scanning electron microscope (SEM), and thermogravimetric analysis/differential scanning calorimeter (TG/DSC) were employed to evaluate the detailed degradation process of the CTA films, which were treated by alkali or acidic aqueous solutions. The research results demonstrated that the dominant reaction of CTA films in NaOH solution with various concentrations is deacetylation. Intriguingly, the degradation behaviors of CTA films in HCl depend on the concentration of acid. The CTA films were almost immune to HCl with the concentration less than 1 mol L−1. However, films were degraded directly when the concentration of acid was higher than 1 mol L−1. This study provides a theoretical basis and further understanding for the treatment of dumped CTA films at room temperature.
Funding source: Projection of Training of Young Scholars
Award Identifier / Grant number: 2022BA004
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: The authors gratefully acknowledge the financial support from the Projection of Training of Young Scholars (2022BA004).
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Conflict of interest statement: The authors declare that they have no competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
References
1. He, Y., Ma, E., Xu, Z. Recycling indium from waste liquid crystal display panel by vacuum carbon-reduction. J. Hazard. Mater. 2014, 268, 185–190; https://doi.org/10.1016/j.jhazmat.2014.01.011.Search in Google Scholar PubMed
2. Yu, L., Moriguchi, Y., Nakatani, J., Zhang, Q., Li, F., He, W., Li, G. Environmental impact assessment on the recycling of waste LCD panels. ACS Sustain. Chem. Eng. 2019, 7, 6360–6368; https://doi.org/10.1021/acssuschemeng.9b00119.Search in Google Scholar
3. Liu, Z., Xu, Z., Huang, H., Li, B. A study of waste liquid crystal display generation in mainland China. Waste Manage. Res. 2016, 34, 58–66; https://doi.org/10.1177/0734242x15611736.Search in Google Scholar
4. Liang, X., Xie, R., Zhu, C., Chen, H., Shen, M., Li, Q., Du, B., Luo, D., Zeng, L. Comprehensive identification of liquid crystal monomers biphenyls, cyanobiphenyls, fluorinated biphenyls, and their analogues in waste LCD panels and the first estimate of their global release into the environment. Environ. Sci. Technol. 2021, 55, 12424–12436; https://doi.org/10.1021/acs.est.1c03901.Search in Google Scholar PubMed
5. Kang, W., Kim, J. C., Noh, J. H., Kim, D. W. Waste liquid-crystal display glass-directed fabrication of silicon particles for lithium-ion battery anodes. ACS Sustain. Chem. Eng. 2019, 7, 15329–15338; https://doi.org/10.1021/acssuschemeng.9b02654.Search in Google Scholar
6. Zhang, K., Wu, Y., Wang, W., Li, B., Zhang, Y., Zuo, T. Recycling indium from waste LCDs: a review. Resour. Conserv. Recy. 2015, 104, 276–290; https://doi.org/10.1016/j.resconrec.2015.07.015.Search in Google Scholar
7. Fan, X., Liu, Z., Lu, J., Liu, Z. T. Cellulose triacetate optical film preparation from ramie fiber. Ind. Eng. Chem. Res. 2009, 48, 6212–6215; https://doi.org/10.1021/ie801703x.Search in Google Scholar
8. Songsurang, K., Miyagawa, A., Manaf, M. E. A., Phulkerd, P., Nobukawa, S., Yamaguchi, M. Optical anisotropy in solution-cast film of cellulose triacetate. Cellulose 2013, 20, 83–96; https://doi.org/10.1007/s10570-012-9807-0.Search in Google Scholar
9. Yu, W., Yang, Q., Zou, Y., Wang, Y. Research status of cellulose triacetate in liquid crystal display. China Plast. Ind. 2017, 45, 13–16; https://doi.org/10.3969/j.issn.1005-5770.2017.04.004.Search in Google Scholar
10. Li, J., Gao, S., Duan, H., Liu, L. Recovery of valuable materials from waste liquid crystal display pane. Waste Manag. 2009, 29, 2033–2039; https://doi.org/10.1016/j.wasman.2008.12.013.Search in Google Scholar PubMed
11. Wang, R., Xu, Z. Pyrolysis characteristics and pyrolysis products separation for recycling organic materials from waste liquid crystal display panels. J. Hazard. Mater. 2016, 302, 45–56; https://doi.org/10.1016/j.jhazmat.2015.09.038.Search in Google Scholar PubMed
12. Zhang, L., Wu, B., Chen, Y., Xu, Z. Energy and valuable resource recovery from waste liquid crystal display panels by an environmental-friendly technological process: pyrolysis of liquid crystals and preparation of indium product. J. Clean. Prod. 2017, 162, 141–152; https://doi.org/10.1016/j.jclepro.2017.06.031.Search in Google Scholar
13. Chen, Y., Zhang, L., Xu, Z. Vacuum pyrolysis characteristics and kinetic analysis of liquid crystal from scrap liquid crystal display panels. J. Hazard. Mater. 2017, 327, 55–63; https://doi.org/10.1016/j.jhazmat.2016.12.026.Search in Google Scholar PubMed
14. Zhang, K., Li, B., Wu, Y., Wang, W., Li, R., Zhang, Y., Zuo, T. Recycling of indium from waste LCD: a promising non-crushing leaching with the aid of ultrasonic wave. Waste Manag. 2017, 64, 236–243; https://doi.org/10.1016/j.wasman.2017.03.031.Search in Google Scholar PubMed
15. Guan, J., Wang, S., Ren, H., Guo, Y., Yuan, H., Yan, X., Guo, J., Gu, W., Su, R., Liang, B., Gao, G., Zhou, Y., Xua, J., Guo, Z. Indium recovery from waste liquid crystal displays by polyvinyl chloride waste. RSC Adv. 2015, 5, 102836–102843; https://doi.org/10.1039/c5ra21871c.Search in Google Scholar
16. Buchanan, C. M., Gardner, R. M., Komarek, R. J. Aerobic biodegradation of cellulose acetate. J. Appl. Polym. Sci. 1993, 47, 1709–1719; https://doi.org/10.1002/app.1993.070471001.Search in Google Scholar
17. Rambaldi, D. C., Suryawanshi, C., Eng, C., Preusser, F. D. Effect of thermal and photochemical degradation strategies on the deterioration of cellulose diacetate. Polym. Degrad. Stab. 2014, 107, 237–245; https://doi.org/10.1016/j.polymdegradstab.2013.12.004.Search in Google Scholar
18. Yadav, N., Hakkarainen, M. Degradable or not? Cellulose acetate as a model for complicated interplay between structure, environment and degradation. Chemosphere 2021, 265, 128731; https://doi.org/10.1016/j.chemosphere.2020.128731.Search in Google Scholar PubMed
19. Leppänen, I., Vikman, M., Harlin, A., Orelma, H. Enzymatic degradation and pilot-scale composting of cellulose-based films with different chemical structures. J. Polym. Environ. 2020, 28, 458–470; https://doi.org/10.1007/s10924-019-01621-w.Search in Google Scholar
20. Zhang, W., Wang, D., Wang, S. Degradation properties of alkali-treated diacetate fiber. J. Cellulose Sci. Technol. 2008, 16, 45–49; https://doi.org/10.16561/j.cnki.xws.2008.01.005.Search in Google Scholar
21. Joly, F.-X., Coulis, M. Comparison of cellulose vs. plastic cigarette filter decomposition under distinct disposal environments. Waste Manag. 2018, 72, 349–353; https://doi.org/10.1016/j.wasman.2017.11.023.Search in Google Scholar PubMed
22. Quintana, R., Persenaire, O., Lemmouchi, Y., Sampson, J., Martin, S., Bonnaud, L., Dubois, P. Enhancement of cellulose acetate degradation under accelerated weathering by plasticization with eco-friendly plasticizers. Polym. Degrad. Stabili. 2013, 98, 1556–1562; https://doi.org/10.1016/j.polymdegradstab.2013.06.032.Search in Google Scholar
23. Haske-Cornelius, O., Pellis, A., Tegl, G., Wurz, S., Saake, B., Ludwig, R., Sebastian, A., Nyanhongo, G. S., Guebitz, G. M. Enzymatic systems for cellulose acetate degradation. Catalysts 2017, 7, 287; https://doi.org/10.3390/catal7100287.Search in Google Scholar
24. Rinaldi, R., Schuth, F. Acid hydrolysis of cellulose as the entry point into biorefinery schemes. ChemSusChem 2009, 2, 1096–1107; https://doi.org/10.1002/cssc.200900188.Search in Google Scholar PubMed
25. Vázquez, G., Alvarez, E., Varela, R., Cancela, A., Navaza, J. M. Density and viscosity of aqueous solutions of sodium dithionite, sodium hydroxide, sodium dithionite + sucrose, and sodium dithionite + sodium hydroxide + sucrose from 25 °C to 40 °C. J. Chem. Eng. Data 1996, 41, 244–248; https://doi.org/10.1021/je950243k.Search in Google Scholar
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Articles in the same Issue
- Frontmatter
- Material Properties
- The degradation behaviors of optical cellulose triacetate films in alkali/acid solutions
- Exploration of dielectric spectra of variously synthesized epoxy/ZnO nanocomposites
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Articles in the same Issue
- Frontmatter
- Material Properties
- The degradation behaviors of optical cellulose triacetate films in alkali/acid solutions
- Exploration of dielectric spectra of variously synthesized epoxy/ZnO nanocomposites
- Preparation and Assembly
- Preparation and evaluation of polyvinyl alcohol hydrogels with zinc oxide nanoparticles as a drug controlled release agent for a hydrophilic drug
- PVA-borax/g-C3N4 nanocomposite hydrogel with excellent mechanical property and self-healing efficiency
- Fabrication and characterization of microencapsulated dimethyl adipate phase change material with melamine-formaldehyde shell for cold thermal energy storage in coating
- Preparation and performance of “three-layer sandwich” composite loose nanofiltration membrane based on mussel bionic technology
- Engineering and Processing
- Electrospinning and electrospun based polyvinyl alcohol nanofibers utilized as filters and sensors in the real world
- Synergistic effect of GMA and TMPTA as co-agent to adjust the branching structure of PLLA during UV-induced reactive extrusion
