Supercritical CO2 Assisted TiO2 Preparation to Improve the UV Resistance Properties of Cotton Fiber
文献类型： 外文期刊
作者： Ye, Sihong 1 ; Sun, Hui 1 ; Wu, Juan 1 ; Wan, Lingzhong 1 ; Ni, Ying 1 ; Wang, Rui 1 ; Xiang, Zhouyang 2 ; Deng, Xiaonan 1 ;
作者机构： 1.Cotton Res Inst Anhui Acad Agr Sci, Hefei 230009, Peoples R China
2.South China Univ Technol, State Key Lab Pulp & Paper Engn, Guangzhou 510640, Peoples R China
关键词： cotton fiber; TiO2; supercritical carbon dioxide; UV resistance
期刊名称：POLYMERS （ 影响因子：4.967； 五年影响因子：5.063 ）
ISSN：
年卷期： 2022 年 14 卷 24 期
页码：
收录情况： SCI
摘要： Cotton fiber is favored by people because of its good moisture absorption, heat preservation, soft feel, comfortable wearing and other excellent performance. In recent years, due to the destruction of the ozone layer, the intensity of ultraviolet radiation at ground level has increased. Cotton fiber will degrade under long time ultraviolet irradiation, which limits the outdoor application of cotton fiber. In this study, titanium dioxide (TiO2) particles were prepared on the surface of cotton fibers with the help of supercritical carbon dioxide (SCCO2) to improve the UV resistance of cotton fibers. The effects of SCCO2 treatment on the morphology, surface composition, thermal stability, photostability and mechanical properties of TiO2 were studied by Fourier transform infrared spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, thermogravimetric analysis, UV-VIS spectroscopy, and single fiber test. The results showed that TiO2 particles were generated on the fiber surface, which reduced the photo-degradation rate of cotton fiber. This is because TiO2 can absorb UV rays and reduce the absorption of UV rays by the cotton fiber itself. The synthesis process of SCCO2 is simple and environmentally friendly, which provides a promising technology for the synthesis of metal nitrogen dioxide on natural plant fibers.
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