Alhashmi Alamer Fahad, Beyari Rawan F
Department of Physics, Faculty of Applied Science, Umm AL-Qura University, Al Taif Road, Makkah 24382, Saudi Arabia.
Materials (Basel). 2023 Feb 20;16(4):1738. doi: 10.3390/ma16041738.
With the rapid growth of electronic textiles, there is a need for highly conductive fabrics containing fewer conductive materials, allowing them to maintain flexibility, low cost and light weight. Poly(3,4-ethylenedioxythiophene): polystyrene sulfonate (PEDOT:PSS), is one of the most promising conductive materials for the production of conductive fabrics due to its excellent properties such as solubility, relatively high conductivity, and market availability. Moreover, its electrical conductivity can be enhanced by polar solvents or acid treatment. The aim of this work was to fabricate conductive cotton fabrics with a small fixed amount of PEDOT:PSS and to investigate how titanium dioxide (TiO) nanoparticles affect the electrical, thermal and structural properties of PEDOT:PSS-coated cotton fabrics. The change in electrical conductivity of the nanocomposite fabric was then related to morphological analysis by scanning electron microscopy and X-ray diffraction. We found that the sheet resistance of the nanocomposite cotton fabric depends on the TiO concentration, with a minimum value of 2.68 Ω/□ at 2.92 wt% TiO. The effect of UV light on the sheet resistance of the nanocomposite cotton fabric was also investigated; we found that UV irradiation leads to an increase in conductivity at an irradiation time of 10 min, after which the conductivity decreases with increasing irradiation time. In addition, the electrical behavior of the nanocomposite cotton fabric as a function of temperature was investigated. The nanocomposite fabrics exhibited metallic behavior at high-TiO concentrations of 40.20 wt% and metallic semiconducting behavior at low and medium concentrations of 11.33 and 28.50 wt%, respectively. Interestingly, cotton fabrics coated with nanocomposite possessed excellent washing durability even after seven steam washes.
随着电子纺织品的迅速发展，需要含有较少导电材料的高导电织物，以使它们保持柔韧性、低成本和轻重量。聚（3,4-乙撑二氧噻吩）：聚苯乙烯磺酸盐（PEDOT:PSS）由于其优异的性能，如溶解性、相对较高的导电性和市场可得性，是生产导电织物最有前途的导电材料之一。此外，其导电性可通过极性溶剂或酸处理来提高。这项工作的目的是制备含有少量固定量PEDOT:PSS的导电棉织物，并研究二氧化钛（TiO）纳米颗粒如何影响PEDOT:PSS涂层棉织物的电学、热学和结构性能。然后将纳米复合织物的电导率变化与通过扫描电子显微镜和X射线衍射进行的形态分析相关联。我们发现纳米复合棉织物的表面电阻取决于TiO浓度，在TiO浓度为2.92 wt%时最小值为2.68Ω/□。还研究了紫外线对纳米复合棉织物表面电阻的影响；我们发现紫外线照射在照射时间为10分钟时导致电导率增加，之后电导率随着照射时间的增加而降低。此外，研究了纳米复合棉织物的电学行为随温度的变化。纳米复合织物在TiO高浓度为40.20 wt%时表现出金属行为，在低浓度和中等浓度分别为11.33和28.50 wt%时表现出金属半导体行为。有趣的是，即使经过七次蒸汽洗涤，涂覆有纳米复合材料的棉织物仍具有优异的洗涤耐久性。
