基於石墨烯改質膨脹型阻燃塗料和混能式微奈米發電機的分層可撓性自供電熱感測器

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謝沁嬈(Chin-Yau Shie) 查詢紙本館藏

畢業系所

機械工程學系

論文名稱

基於石墨烯改質膨脹型阻燃塗料和混能式微奈米發電機的分層可撓性自供電熱感測器
(Highly Flexible and Self-Powered Thermal Sensor (FSTS) Based on Integrated Hierarchical Structure of Graphene-Modified Intumescent Flame Retardant (GIFR) Coating with Hybridized Nanogenerator)

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至系統瀏覽論文 (2027-9-16以後開放)

摘要(中)

近年來，危及人類生命、經濟和環境的火災數量顯著增加。對於老舊建築，由於觸發火災警報所需的煙霧濃度閾值或紅外探測溫度較高，響應時間較長(超過100秒)，火災預警和預防效果並不理想。為了有效監測和預警火災，本研究提出了一種新型火災報警系統，結合了高度可撓的自供電熱感測器(FSTS)以及警示燈，FSTS具有阻燃性並且非常易於安裝。本文的新穎之處在於 FSTS 的層次結構：結合通過近場靜電紡織(NFES)工藝沉積的聚偏二氟乙烯-三氟乙烯(PVDF-TrFE)微/奈米纖維(MNF)和通過聚二甲基矽氧烷(PDMS)翻模製成的靜電摩擦層，及封裝的石墨烯改質膨脹型阻燃(GIFR)塗料。FSTS的電壓輸出達到11.8V，可以搭配橋式整流電路給電容充電；在室溫下，FSTS是電絕緣的，在火災中，高溫導致塗層炭化並膨脹，從電絕緣狀態轉變為導電狀態，連接到FSTS的警示燈將在短時間內(~3 秒)做出響應，達成火災預警。

摘要(英)

The number of fire events that risk human life, the economy, and the environment has significantly increased in recent years. Uncontrolled fires are one of the main causes of building collapse. For old structures, due to the high smoke concentration threshold or infrared detection temperature required to activate the fire detector, the response time is long (more than 100 s), and the fire warning and prevention effect are not ideal. For effective monitoring and early warning of fires, a novel fire alarm system was fabricated in this study. This system combines a highly flexible and self-powered thermal sensor (FSTS) as well as a commercial light emitting diode (LED). FSTS is fire retardant and very easy to install. The novelty of this paper is the hierarchical structure of FSTS. The structure integrates poly(vinylidenefluoride-co-trifluoroethylene) (PVDF-TrFE) micro/nano fibers (MNFs) deposited by Near-field electrospinning (NFES) process and an electrostatic friction layer by polydimethylsiloxane (PDMS) rolling over technology with a fully encapsulated graphene-modified intumescent flame retardant (GIFR) coating. It can be as a motion-induced energy harvester with a self-powered fire alarm system. The voltage output of FSTS reaches 11.8V, which can be easily matched with a bridge rectifier circuit to charge capacitors in daily life. The unique of FSTS is that at room temperature, FSTS is electrically insulating; however, it conducts electricity at high temperatures. In a fire, high temperatures cause the coating to char and expand transitioning from an electrically insulating state to a conducting state. In this way, warning lights connected to FSTS will respond within a short period (~3 s), alerting people immediately so that urgent action can be taken.

關鍵字(中)

★ 近場電紡織技術
★ 逐層堆疊多孔PVDF-TrFE微奈米纖維
★ 石墨烯改質膨脹型阻燃塗料
★ 高度可撓的自供電熱感測器

關鍵字(英)

★ Near-field electrospinning (NFES)
★ Poly(vinylidenefluoride-co-trifluoroethylene) (PVDF-TrFE)
★ Micro/nano fibers (MNFs)
★ Graphene-modified intumescent flame retardant coating (GIFR Coating)
★ Flexible self-powered thermal sensor (FSTS)

論文目次

摘要 I
Abstract II
致謝 IV
目錄 VI
圖表目錄 VIII
第一章緒論 1
1.1 前言 1
1.2 研究動機與目的 2
1.3 論文架構 3
第二章文獻回顧 5
2.1 壓電效應 5
2.1.1. 正壓電效應 (Direct Piezoelectric Effect) 6
2.1.2. 逆壓電效應 (Converse Piezoelectric Effect) 7
2.2 壓電材料 8
2.2.1. 壓電材料種類 8
2.2.2. 壓電材料操作模式 9
2.3 壓電聚合物 10
2.4 摩擦電效應 13
2.5 電紡織技術 15
2.5.1. 電紡織技術背景 15
2.5.2. 電紡織技術原理 16
2.6 奈米發電機 19
2.6.1. 壓電奈米發電機(Piezoelectric Nanogenerator) 19
2.6.2. 摩擦電奈米發電機(Triboelectric Nanogenerator) 20
2.7 膨脹型阻燃塗料 22
2.7.1. 膨脹機制 22
2.7.2. 阻燃機制 22
2.7.3. 奈米添加劑 23
2.8 石墨烯 24
2.9 聚二甲基矽氧烷(PDMS) 25
第三章基於石墨烯改質膨脹型阻燃塗料和混能式微奈米發電機的分層可撓性自供電熱感測器 26
3.1 導論 26
3.2 實驗方法及步驟 27
3.2.1 電紡絲製作方法及材料 27
3.2.2 膨脹型阻燃劑改質及製備 28
3.2.3 量測設備及應用 29
3.3 結果與討論 30
第四章結論 52
第五章未來展望 53
參考文獻 54
實驗儀器 59

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指導教授

傅尹坤(Yiin-Kuen Fuh)

審核日期

2022-9-22

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