A facile in situ method to fabricate transparent, flexible polyvinyl alcohol/ZnO film for UV-shielding
Over exposure of UV light could cause serious damages to human being, such as DNA damage, skin aging and cancer, cataract and so on. Hence, there is an urgent need to develop optically transparent materials as windows, glasses and protection film etc. to filter UV light. In the present study, a homo...
| Main Authors: | , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/144235 |
| _version_ | 1811693933319684096 |
|---|---|
| author | Zhao, Zhitong Mao, Anran Gao, Weiwei Bai, Hao |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Zhao, Zhitong Mao, Anran Gao, Weiwei Bai, Hao |
| author_sort | Zhao, Zhitong |
| collection | NTU |
| description | Over exposure of UV light could cause serious damages to human being, such as DNA damage, skin aging and cancer, cataract and so on. Hence, there is an urgent need to develop optically transparent materials as windows, glasses and protection film etc. to filter UV light. In the present study, a homogeneous polyvinyl alcohol (PVA)/zinc oxide (ZnO) film was fabricated via a facile in situ method by controlling the reaction of Zn2+ with OH- ions and the dehydration process of Zn(OH)42- throughout PVA hydrogel matrix. The obtained PVA/ZnO film can absorb over 99% of UV light at wavelength region between 200 and 350 nm, and its optical transparency in the visible region was similar to that of neat PVA film (87–90%). In addition, this hybrid film was flexible (~5% strain at fracture) with excellent tensile strength (130–140 MPa), and able to be easily modulated onto various substrates as UV-protection film. Overall, this facile, low cost in situ fabrication method with environment-friendly nature could be applicable to various hydrogel systems for developing novel transparent UV-shielding nanocomposites with desired properties. |
| first_indexed | 2024-10-01T06:59:33Z |
| format | Journal Article |
| id | ntu-10356/144235 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:59:33Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1442352020-10-22T01:35:45Z A facile in situ method to fabricate transparent, flexible polyvinyl alcohol/ZnO film for UV-shielding Zhao, Zhitong Mao, Anran Gao, Weiwei Bai, Hao School of Materials Science and Engineering Engineering::Materials PVA/ZnO Film UV-shielding Over exposure of UV light could cause serious damages to human being, such as DNA damage, skin aging and cancer, cataract and so on. Hence, there is an urgent need to develop optically transparent materials as windows, glasses and protection film etc. to filter UV light. In the present study, a homogeneous polyvinyl alcohol (PVA)/zinc oxide (ZnO) film was fabricated via a facile in situ method by controlling the reaction of Zn2+ with OH- ions and the dehydration process of Zn(OH)42- throughout PVA hydrogel matrix. The obtained PVA/ZnO film can absorb over 99% of UV light at wavelength region between 200 and 350 nm, and its optical transparency in the visible region was similar to that of neat PVA film (87–90%). In addition, this hybrid film was flexible (~5% strain at fracture) with excellent tensile strength (130–140 MPa), and able to be easily modulated onto various substrates as UV-protection film. Overall, this facile, low cost in situ fabrication method with environment-friendly nature could be applicable to various hydrogel systems for developing novel transparent UV-shielding nanocomposites with desired properties. 2020-10-22T01:33:50Z 2020-10-22T01:33:50Z 2018 Journal Article Zhao, Z., Mao, A., Gao, W., & Bai, H. (2018). A facile in situ method to fabricate transparent, flexible polyvinyl alcohol/ZnO film for UV-shielding. Composites Communications, 10, 157-162. doi: 10.1016/j.coco.2018.09.009. 2452-2139 https://hdl.handle.net/10356/144235 10.1016/j.coco.2018.09.009 10 157 162 en Composites Communications © 2018 Elsevier Ltd. All rights reserved. |
| spellingShingle | Engineering::Materials PVA/ZnO Film UV-shielding Zhao, Zhitong Mao, Anran Gao, Weiwei Bai, Hao A facile in situ method to fabricate transparent, flexible polyvinyl alcohol/ZnO film for UV-shielding |
| title | A facile in situ method to fabricate transparent, flexible polyvinyl alcohol/ZnO film for UV-shielding |
| title_full | A facile in situ method to fabricate transparent, flexible polyvinyl alcohol/ZnO film for UV-shielding |
| title_fullStr | A facile in situ method to fabricate transparent, flexible polyvinyl alcohol/ZnO film for UV-shielding |
| title_full_unstemmed | A facile in situ method to fabricate transparent, flexible polyvinyl alcohol/ZnO film for UV-shielding |
| title_short | A facile in situ method to fabricate transparent, flexible polyvinyl alcohol/ZnO film for UV-shielding |
| title_sort | facile in situ method to fabricate transparent flexible polyvinyl alcohol zno film for uv shielding |
| topic | Engineering::Materials PVA/ZnO Film UV-shielding |
| url | https://hdl.handle.net/10356/144235 |
| work_keys_str_mv | AT zhaozhitong afacileinsitumethodtofabricatetransparentflexiblepolyvinylalcoholznofilmforuvshielding AT maoanran afacileinsitumethodtofabricatetransparentflexiblepolyvinylalcoholznofilmforuvshielding AT gaoweiwei afacileinsitumethodtofabricatetransparentflexiblepolyvinylalcoholznofilmforuvshielding AT baihao afacileinsitumethodtofabricatetransparentflexiblepolyvinylalcoholznofilmforuvshielding AT zhaozhitong facileinsitumethodtofabricatetransparentflexiblepolyvinylalcoholznofilmforuvshielding AT maoanran facileinsitumethodtofabricatetransparentflexiblepolyvinylalcoholznofilmforuvshielding AT gaoweiwei facileinsitumethodtofabricatetransparentflexiblepolyvinylalcoholznofilmforuvshielding AT baihao facileinsitumethodtofabricatetransparentflexiblepolyvinylalcoholznofilmforuvshielding |