Akter Shilpi, Mahmud Md Faisal, Rahman A N M Masudur, Pritha Nadvi Mamun, Hasan Md Mahmudul, Ullah Md Hedayet, Kanon Md Rowshanuzzaman, Ahona Fayeeka Tasnim, Bristy Bebe Fatema
Department of Fabric Engineering, Faculty of Textile Engineering, Bangladesh University of Textiles (BUTEX), Dhaka 1208, Bangladesh.
Department of Materials, Faculty of Science & Engineering, University of Manchester, Manchester M13 9PL, U.K.
ACS Omega. 2024 Sep 20;9(39):41053-41066. doi: 10.1021/acsomega.4c06893. eCollection 2024 Oct 1.
Self-cleaning textiles have the potential to revolutionize the lives of people like military personnel and hikers who spend extended periods of time in the sun and have restricted access to washing facilities. This research aims to develop the self-cleaning capability of defense uniforms by utilizing air plasma treatment and applying TiO nanocoating. Following plasma treatment of differing durations (2, 4, 6, 8, and 10 min, respectively), a pad-dry cure method was employed to apply a TiO coating to each sample, while keeping other processing parameters constant. SEM, Fourier transform infrared spectroscopy, ultraviolet protection factor (UVPF), energy-dispersive X-rays, and a water contact angle test were performed in order to validate the air plasma-induced surface modification. There was a gradual escalation in the rate of TiO absorption with an extension of the plasma treatment duration. Afterward, the samples were stained with various organic and inorganic compounds, including oil, ink, soil, and coffee, and subsequently exposed to sunlight for a period of 6 h. The samples demonstrated an enhanced cleaning effectiveness with increasing quantities of TiO. The reflectance value and visual assessment of washed sample showed a reduced yet still present self-cleaning characteristic. The UVPF of the samples increased gradually as the duration of plasma treatment increased due to the UV absorption properties of TiO, as validated by measuring the band gap energy.
自清洁纺织品有潜力彻底改变军事人员和徒步旅行者等人群的生活，这些人长时间暴露在阳光下，且洗涤设施有限。本研究旨在通过利用空气等离子体处理和应用TiO纳米涂层来提高国防制服的自清洁能力。在进行不同时长（分别为2、4、6、8和10分钟）的等离子体处理后，采用浸轧烘干固化法对每个样品施加TiO涂层，同时保持其他加工参数不变。进行扫描电子显微镜（SEM）、傅里叶变换红外光谱、紫外线防护系数（UVPF）、能量色散X射线分析以及水接触角测试，以验证空气等离子体诱导的表面改性。随着等离子体处理时长的延长，TiO的吸收率逐渐上升。之后，用各种有机和无机化合物对样品进行染色，包括油、墨水、土壤和咖啡，随后将其暴露在阳光下6小时。随着TiO含量的增加，样品表现出更高的清洁效率。洗涤后样品的反射率值和视觉评估显示自清洁特性有所降低但仍然存在。由于TiO的紫外线吸收特性，通过测量带隙能量验证，随着等离子体处理时长的增加，样品的UVPF逐渐升高。
