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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/90617
標題: | 高親水性薄膜於智慧衣物傳感器 Highly Hydrophilic Thin Films for Wearable E-textile Sensor |
作者: | 莊凱文 Kai-Wen Chuang |
指導教授: | 廖英志 Ying-Chih Liao |
關鍵字: | 智慧衣物,汗水感測,水凝膠,親水薄膜,電化學, Smart textile,Sweat sensing,Hydrogel,Hydrophilic thin film,Electrochemistry, |
出版年 : | 2023 |
學位: | 碩士 |
摘要: | 智慧衣物是近年來炙手可熱的研究主題之一,其應用涵蓋範圍極廣,從發光顯示技術、電熱衣以及本實驗研究的穿戴式汗水感測衣物。智慧衣物主要是將電子元件與織物進行整合,然而目前汗水感測智慧衣物的整合技術往往受限於不耐水洗、汗水與電極的接觸穩定性、電極與晶片的連接方式,降低其量產的可能性。
本文將提出一款新型電子元件與織物的整合方式,將感測電極塗布至價格低廉、高可撓性的聚對苯二甲酸乙二酯 (polyethylene terephthalate, PET)基板上,藉由特殊設計之電極圖案及改質分析氯化鈉之濃度與流量。而為了增進汗水的訊號穩定性,本文在PET片上塗布一層高親水性CNC之薄膜,降低電極與織布中的親疏水性差異,進而提升汗水與電極的潤濕性及訊號穩定性。然而CNC薄膜極易溶於水,在碰到汗水後PET便會失去其親水性,因此我們在電極上製備一具有親水、吸水性質的Polyacrylic acid/CNC (PAA/CNC)的光固化水膠薄膜,以此提升電極表面的親水性及薄膜貼覆性,以此強化CNC與PET片的貼合牢固性使親水薄膜能夠擁有長期潤濕穩定性,最終此方法可以製作出高親水性薄膜。在汗水感測的應用上,以指插電極來感測汗水中的鈉濃度及汗水流量,並且驗證PAA/CNC親水薄膜可以有效改善電極與織布的親疏水性差異,同時可以提升汗水流量感測靈敏度,最後再將此汗水感測整合系統與無線傳輸晶片連接並且進行無線感測,驗證其應用可行性。 Smart textile has been a very popular issue for these years because its applications cover a wide range from light-emitting display technology, electric heating clothes to wearable sweat-sensing device, which is discussed in this research. Smart textile is fabricated by integrating electronic components with fabrics. However, the current sweat-sensing smart clothing is often limited by contact stability between sweat and electrodes, the inability to wash and the connection between chips and electrodes, which reduce the mass production possibility. This research proposes a new method of integrating electric components and fabrics. The sensing electrodes are coated on the low-cost, highly flexible polyethylene terephthalate (PET) substrate and patterned in specially designed shapes to analyze flowrate and sweat elements (glucose and sodium). To improve the signal stability of sweat sensing, this research coats a layer of hydrophilic CNC films on the electrodes to reduce the hydrophilicity difference and enhance the wettability between electrodes and fabrics. However, CNC film is very soluble in water, so PET will lose its hydrophilicity after contacting sweat. Hence, a photocurable hydrogel thin film of Polyacrylic acid/CNC (PAA/CNC) with hydrophilic and water-absorbing properties is fabricated to improve the hydrophilicity and film adhesion on the electrode surface. This method can produce highly hydrophilic and enhance the wettability between fabric and electrode. In the application of sweat sensing, interdigitated electrodes are used to sense the sodium concentration and sweat flow in sweat, and it is verified that the PAA/CNC hydrophilic film can effectively improve the difference in hydrophilicity between the electrode and the fabric and improve the sensitivity of sweat flow sensing. Finally, connect the sweat sensing integrated system with the wireless transmission chip and perform wireless sensing to verify its application feasibility. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/90617 |
DOI: | 10.6342/NTU202302250 |
全文授權: | 未授權 |
顯示於系所單位: | 化學工程學系 |
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ntu-111-2.pdf 目前未授權公開取用 | 4.59 MB | Adobe PDF |
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