論文使用權限 Thesis access permission:自定論文開放時間 user define
開放時間 Available:
校內 Campus:永不公開 not available
校外 Off-campus:永不公開 not available
論文名稱 Title |
近場電紡之壓電纖維於智能貼片的製作 The fabrication of piezoelectric fibers using near-field electrospinning method for smart patch |
||
系所名稱 Department |
|||
畢業學年期 Year, semester |
語文別 Language |
||
學位類別 Degree |
頁數 Number of pages |
146 |
|
研究生 Author |
|||
指導教授 Advisor |
|||
召集委員 Convenor |
|||
口試委員 Advisory Committee |
|||
口試日期 Date of Exam |
2014-11-28 |
繳交日期 Date of Submission |
2014-12-22 |
關鍵字 Keywords |
近場靜電紡絲、壓電纖維、聚谷氨酸甲酯、聚偏氟乙烯 near-field electrospinning, piezoelectric fibers, PMLG, PVDF |
||
統計 Statistics |
本論文已被瀏覽 5678 次,被下載 0 次 The thesis/dissertation has been browsed 5678 times, has been downloaded 0 times. |
中文摘要 |
本論文研究以近場靜電紡絲技術(Near-field electrospinning)為基礎,由聚偏氟乙烯(Polyvinylidene fluoride, PVDF)與聚谷氨酸甲酯 [Poly(γ-methyl l-glutamate), PMLG] / PVDF複合溶液的重量百分比、黏度、電導度與接觸角相互關係中,使用最佳參數配合滾動收集設備製作出具有壓電特性之纖維。將製作出之壓電纖維結合指叉電極結構,施予高電場進行再極化處理,進而有效提升壓電纖維之機電轉換率。研究過程中利用PVDF與PMLG/PVDF複合壓電纖維貼附於撓性基板(聚對苯二甲酸乙二酯Polyethylene terephthalate,PET)指叉電極結構之上,該結構之間距為0.2~1 mm。實驗結果顯示 PVDF溶液在重量百分比18 wt%時,電導度為43.9 μs/cm,接觸角為31.25°,經電紡後可獲得0.97-4.1 μm壓電纖維;而PMLG/PVDF溶液在重量百分比30.69 wt%時,電導度為55.2 μs/cm情況,接觸角為54.47°,經電紡後可獲得7.11-17.3 μm壓電纖維。再施以1.6×107 V/m電場並分別加熱35°C與65°C進行再極化處理,再將此指叉電極結構施予一固定頻率(8 Hz)拍打並進行量測。研究發現PMLG/PVDF複合壓電纖維能產生0.191 V 開路電壓與720 nA 閉路電流;與PVDF相較之下做成的能源擷取裝置有1.2-1.8倍的提升,且相較於未再極化之傳統平行電極輸出的電壓與電流,擁有77%以上的轉換效率提升。雖然此材料比PVDF擁有較高的電性表現,但PMLG/PVDF複合壓電纖維具有脆性容易損壞,故本論文選用PVDF纖維作為後續的運用。最後使用放電加工製作0.2 mm的模具,以聚二甲基矽氧烷(PDMS)翻模而成的PDMS軟性結構以轉印方式塗佈銀膠,使PDMS上的指叉式電極結構具有導電性,鋪上PVDF纖維後封裝成智能貼片,此智能貼片相較於PET貼片擁有較好的電性輸出。最後將此利用陣列方式,針對行動不便與久臥於病床上的患者進行大面積感測。 |
Abstract |
This thesis is based on near-field electrospinning technique, from the interaction between solution weight percent, viscosity, electrical conductivity and contact angle of (Polyvinylidene fluoride, PVDF) and [Poly(γ-methyl l-glutamate), PMLG]/PVDF composite solution. Use the best parameters to produce the piezoelectric fibers by rolling collection device. The piezoelectric fibers are placed on the interdigitated electrode structure, and a high electric field is applied to re-polarization the sample that could enhance the electromechanical conversion rates of piezoelectric fibers significantly. PVDF and PMLG / PVDF piezoelectric composite fiber is pasted on flexible PET substrate with interdigitated electrode structure, and the gap of structure is between 0.2 mm and 1mm. The experimental result shows that while the weight percentage of PVDF solution is 18 wt%, conductivity is 43.9 μs/cm, contact angle is 31.25°; and piezoelectric fiber with 0.95-4.1μm diameter can be produced by electrospinning. While the weight percentage of PMLG/PVDF solution is 30.69%, conductivity is 55.2 μs/cm and conductivity is 54.47°, the diameter of piezoelectric fiber is 7.11-17.3 μm. A 1.6×107 V/m electric field is set to re-polarization the piezoelectric fibers at 35°C and 65°C respectively, and a vibration with fixed frequency (8 Hz) is given to structure. According to the measurement results, PMLG / PVDF piezoelectric composite fiber could produce 0.191 V open circuit voltage and 720 nA closed current; which is 1.2-1.8 times higher than the energy harvester made by PVDF, and the conversion rate is increased by 77% comparing with the un-polarization traditional parallel electrode. Although the electrical performance of PMLG/PVDF piezoelectric composite fiber is higher than PVDF piezoelectric fiber, the fiber made by PMLG/PVDF will break easily because of the brittleness of material, that’s the main reason we choose PVDF fiber for further application. Electrical discharge machining process is used to fabricate the mold with 0.2 mm gap, and silver plastic is transfer printed on the flexible PDMS structure, that makes interdigitated electrode structure have conductivity. PVDF fiber is placed on the interdigitated electrode structure and packaged as a smart patch, the electric output of smart patch is higher then the one on PET patch. The PVDF fiber smart patch is arranged in array as a wide area detector for patient who is unable to move freely. |
目次 Table of Contents |
目錄 第一章 緒論 1 1-1 前言 1 1-2 研究背景與動機 2 1-3 研究目的 4 第二章 文獻回顧 5 2-1壓電原理 5 2-1-1正壓電效應 7 2-1-2逆壓電效應 8 2-1-3極化處理 9 2-1-4壓電訊號 10 2-2 壓電操作模式 11 2-3壓電材料的種類 12 2-4 PVDF壓電材料之特性與相關研究 13 2-5 PMLG壓電材料之特性與相關研究 15 2-6靜電紡絲製程 17 2-7環境對電紡參數的影響 26 第三章 研究方法 28 3-1 PVDF&PMLG /PVDF先驅溶液調配流程 29 3-1-1相關材料準備 29 3-1-2調配先驅溶液 31 3-2近場靜電紡製程與原理 34 3-3近場靜電紡絲之設備 35 3-4能量擷取裝置製作與設計 39 3-4-1指叉式電極貼片 (PET)製作 40 3-4-2指叉式電極貼片 (PDMS智能貼片)製作 46 3-5實驗用儀器 55 第四章 結果與討論 65 4-1先驅溶液電導率量測 65 4-2先驅溶液黏度量測 67 4-3先驅溶液接觸角量測 69 4-4先驅溶液濃度與線徑之關係 71 4-5指叉式電極貼片 (PET)量測靜態阻抗 80 4-6壓電纖維再極化 (指叉式PET電極貼片) 82 4-7指叉式PET電極貼片電性量測 85 4-8固定頻率電壓、應變、電流量測分析 97 4-9 PVDF與PMLG/PVDF兩種電紡纖維之比較 102 4-10指叉式電極貼片之量測 (PDMS智能貼片) 105 4-11 ANSYS 109 4-12 PET指叉式電極貼片與PDMS智能貼片之比較 112 4-13 PDMS智能貼片可靠度測試 114 4-14脊髓損傷患者臀部受力與溫度檢測 118 第五章 結論及未來展望 121 5-1 結論 121 5-2未來展望 123 參考文獻 124 |
參考文獻 References |
[1] I. Patel, E. Siores, T. Shah, “Utilisation of smart polymers and ceramic based piezoelectric materials for scavenging wasted energy,” Sensors and Actuators A: Physical, vol. 159, pp. 213-218, 2010. [2] V. K. Thakur, M. F. Lin, E. J. Tan, P. S. Lee, “Green aqueous modification of fluoropolymers for energy storage applications,” Royal Society of Chemistry, pp.5951-5959, 2012. [3] M. Lee, C. Y. Chen, S. Wang, S. N. Cha, Y. J. Park, J. M. Kim, L. J. Chou, and Z. L. Wang, “A Hybrid Piezoelectric Structure for Wearable Nanogenerators,” Advanced materials, vol. 24, pp.1759-1764, 2012. [4] Z. L. Wang, “Energy harvesting for self-powered nanosystems,” Nano Research, vol. 1, pp. 1-8, 2008. [5] A. Ballato, “Piezoelectricity: history and new thrusts, ” in Ultrasonics Symposium, Proceedings, pp. 575-583, 1996. [6] 吳國光,張育誠,焦鴻文,“行動發電廠:淺談振動能源利用”,能源報導,2010年6月。 [7] S. W. Kim, “Piezoelectric Nanomaterial. Nanomaterial-Based Transparent Flexible power Generators: Harvesting Waste Energ,” THE 7th Korea-US Nano Workshop, 2010. [8] C. Chang, V.H. Tran, J. Wang, Y. Fuh and L.W. Lin, “Direct-write piezoelectric polymeric nanogenerator with high energy conversion efficiency,” Nano letters, vol. 10, pp. 726-731, 2010. [9] 吳朗,“電子陶瓷:壓電陶瓷”,全欣資訊圖書股份有限公司,1994年12月。 [10] R. Gregorio, “Determination of the α, β, and γ crystalline phases of poly (vinylidene fluoride) films prepared at different conditions, ” Journal of Applied Polymer Science, vol. 100, pp. 3272-3279, 2006. [11] J. F.Nye, “Physical Properties of Crystals,” Oxford, Clarend on Press, 1964. [12] H Kawai, “The Piezoelectricity of Poly (Vinylidene Fluoride),” Japanese Journal of Applied Physics, vol. 8, pp. 975-976, 1969. [13] W. A. Yee, M. Kotaki, Y. Liu and X. Lu, “Morphology, polymorphism behavior and molecular orientation of electrospun poly(vinylidene fluoride) fibers,” Polymer, vol. 48, pp. 512-521, 2007. [14] C.G. Duan, W.N. Mei, J.R. Hardy, S. Ducharme, J. Choi and P.A. Dowben, “Comparison of the theoretical and expe rimental band structure of poly(vinylidene fluoride),” Europhysics letters, vol. 61, pp. 81-87, 2003. [15] T.T. Wang, J.M. Herbert and A.M. Glass, “The applications of ferroelectric polymers,” Chapman & Hall, New York, 1988. [16] I.S. Elashmawi, E.M. Abdelrazek, H.M. Ragab and N.A. Hakeem, “Structural, optical and dielectric behavior of PVDF films filled with different concentrations of iodine,” Physica B: Condensed Matter, vol. 405, pp. 94-98, 2010. [17] J.M. Haa, H.O. Limb and N.J. Jo, “Actuation behaviorof cp actuator based on polypyrrole and PVDF,” Advanced Materials Research, vol. 29, pp. 363-366, 2007. [18] M. Neidhöfer, F. Beaume, L. Ibos, A. Bernès, and C. Lacabanne, “Structural evolution of PVDF during storage or annealing,” Polymer, vol. 45, pp. 1679-1688, 2004. [19] Y. Chen and C. Y. Shew, “Conformational behavior of polar polymer models under electric fields,” Chemical physics letters, vol. 378, pp. 142-147, 2003. [20] P. Sajkiewicz, A. Wasiak, and Z. Gocłowski, “Phase transitions during stretching of poly (vinylidene fluoride),” European polymer journal, vol. 35, pp. 423-429, 1999. [21] Y. Peng and P. Wu, “A two dimensional infrared correlation spectroscopic study on the structure changes of PVDF during the melting process, ” Tribology Letters, vol. 26, pp. 5295-5299, 2004. [22] Z. H. Liu, C. T. Pan, L. W. Lin, J. C. Huang and Z. Y. Ou, “Directwrite PVDF Nonwoven Fiber Fabric Energy Harvesters via the Hollow Cylindrical Nearfield Electrospinning Process,” Smart Materials and Structures, vol. 23, No. 2, 2014. [23] T. Jee, H. Lee, B. Mika and H. Liang, “Effect of microstructures of PVDF on surface adhesive forces,” Polymer, vol. 45, pp. 125-130, 2007. [24] R. Whatmore, “Pyroelectric devices and materials,” Reports on progress in physics, vol. 49, pp. 1335, 1986. [25] Y.C. Wang, and Y.W. Chen, “Application of piezoelectric PVDF film to the measurement of impulsive forces generated by cavitation bubble collapse near a solid boundary,” Experimental Thermal and Fluid Science, vol. 32, pp. 403-414, 2007. [26] D. Sun and J.K. Mills, “Control of a rotating cantilever beam using a torque actuator and a distributed piezoelectric polymer actuator,” Applied Acoustics, vol. 63, pp. 885-899, 2002. [27] H.S. Tzou and C.I. Tseng, “Distributed piezoelectric sensor/actuator design for dynamic measurement control of distributed parameter system: a piezoelectric finite element approach,” Journal of Sound and Vibration, vol. 138, pp. 17-34, 1990. [28] M.J. Tseng and W.Z. Wu, “Analytical and experimental investigation on vibration control of piezoelectric structures,” Structural Vibration and Acoustics, vol. 34, pp. 33-42, 1991. [29] Z. Li and P.M. Bainum, “Vibration control of flexible spacecraft integrating a momentum exchange controller and a distributed piezoelectric actuator,” Journal of Sound and Vibration, vol. 177, pp. 539-553, 1994. [30] S.F. Asokanthan and M. Gu, “Distributed control of flexible structure: theory and experiment,” Proceedings of Asia-Pacific Control Conference, pp.539-553, 1995. [31] D.J Spearritt and S.F. Asokanthan, “Torsional vibration control of a flexible beam using laminated PVDF actuators,” Journal of Sound and Vibration, vol. 193, pp.941-956, 1996 [32] J. Pu, X. Yan, Y. Jiang, C. Chang, and L. Lin, “Piezoelectric actuation of direct-write electrospun fibers,” Sensors and Actuators A: Physical, vol. 164, pp. 131-136, 2010. [33] A. G. Walton, J. Blackwell, In Biopolymers, Academic Press: New York pp.181, 1973 [34] Block, H. In Poly(γ-benzyl-L-glutamate) and other glutamic acid containing polymers; Gordon and Breach Science Publishers: New York 1983. [35] 陳啟仁,利用不同極性衍生物調控聚胜肽之二級結構,國立中山大學材料與光電科學系碩士論文,2011。 [36] L. Pauling and R. B. Corey, “Configurations of Polypeptide Chains with Favored Orientations Around Single Bonds,” Proc. Natl. Acad. Sci., vol. 37, pp. 729-740, 1951. [37] J. Kim, J. Park, S. Lee and D. Sohn, “Surface-Grafting of Polyglutamate on Si Wafer Using Micro Contact Printing,” Molecular Crystals and Liquid Crystals, vol. 464, pp. 211-216, 2007. [38] K. I. Minato, K. Ohkawa, H. Yamamoto, “Chain Conformations of Poly(γ-benzyl-L-glutamate) Pre and Post an Electrospinning Process,” Macromol Biosci, vol. 6, pp. 487-495, 2006. [39] D. Farrar , K. Ren , D. Cheng , S. Kim , W. Moon , W. L. Wilson , J. E. West , S. Michael Yu, “Permanent Polarity and Piezoelectricity of Electrospun α-Helical Poly(α-Amino Acid) Fibers,” Advanced Materials, vol. 23, pp. 3594-3598, 2011. [40] G. Taylor, “Electrically driven jets,” Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences, vol. 313, pp. 453-475, 1969. [41] G. Gong and J. Wu, “Novel Polyimide Materials Produced by Electrospinning,” Intech, pp. 128-140, 2012. [42] X.L. Rayleigh, “On the Equilibrium of Liquid Conducting Masses Charged with Electricity,” Philosophical Magazine Series, vol. 14, No. 87, pp. 184-186, 1882. [43] J.F. Cooley, “Apparatus for electrically dispersing fluids,” US Patent Specification, 692631, 1902. [44] A. Formhals, US Patent, No. 1975504, 1934. [45] P.K. Baumgarten, “Electrostatic Spinning of Acrylic Microfibers,” Journal of Colloid and Interface Science, vol. 36, pp. 71-79, 1971. [46] Z. Zhao, J. Li, X. Yuan, X. Li, Y. Zhang, and J. Sheng, “Preparation and properties of electrospun poly (vinylidene fluoride) membranes,” Journal of applied polymer science, vol. 97, pp. 466-474, 2005. [47] X. Ren and Y. Dzenis, “Novel continuous poly (vinylidene fluoride) nanofibers,” in Materials Research Society Symposium Proceedings, pp. 55, 2006. [48] C. Chang, V. K. Limkrailassiri, and L. Lin, “Continuous near-field electrospinning for large area deposition of orderly nanofiber patterns,” Applied Physics letters, vol. 93, 2008. [49] D. Sun, C. Chang, S. Li, and L. Lin, “Near-field electrospinning,” Nano letters, vol. 6, pp. 839-842, 2006. [50] C. Chang, Y.K. Fuh, L.W. Lin, “A direct-write piezoelectric PVDF nanogenerator,” IEEE solid-state sensors and microsystems conference, pp. 1485-1488, 2009. [51] X. Chen, S. Xu and N. Yao, “1.6 V Nanogenerator for mechanical energy harvesting using PZT nanofibers,” Nano Letters, vol. 10, pp. 2133-2137, 2010. [52] H.Y. Son, J.S. Park, M. Rezaei, J. Huang, J. Kim, Y.S. Nam and W.S. Kim, “Flexible Fibrous Piezo-electric Sensors on Printed Silver Electrodes,” Nanotechnology, vol. 13, pp. 709-713, 2014. [53] J. Chang, L.W. Lin, “Large array electrospun PVDF nanogenerators on a flexible substrate,” IEEE Transducer conference, Beijing, China, June 5-9, 2011. [54] M. Sergio, N. Manaresi, M. Tartagni, R. Guerrieri, and R. Canegallo, “A textile based capacitive pressure sensor,” in Sensors, 2002. Proceedings of IEEE, 2002, pp. 1625-1630. [55] H. K. Lee, S. I. Chang, S. J. Kim, K. S. Yun, E. Yoon, and K. H. Kim, “A modular expandable tactile sensor using flexible polymer,” in Micro Electro Mechanical Systems, 2005. MEMS 2005. 18th IEEE International Conference on, pp. 642-645, 2005. [56] H. K. Lee, S. I. Chang, and E. Yoon, “A flexible polymer tactile sensor: fabrication and modular expandability for large area deployment,” Microelectromechanical Systems, Journal of, vol. 15, pp. 1681-1686, 2006. [57] Yi Qi, Noah T. Jafferis, Kenneth Lyons, Jr., Christine M. Lee, Habib Ahmad, and Michael C. McAlpine, “Piezoelectric Ribbons Printed onto Rubber for Flexible Energy Conversion”, Nano Letters, 2010. [58] M. Lee , C. Y. Chen , S. Wang , S. N. Cha , Y. J. Park , J. M. Kim , L. J. Chou , and Z. L. Wang, “A Hybrid Piezoelectric Structure for Wearable Nanogenerators,” Advanced Materials, pp. 1759-1764, 2012. [59] P. Slobodian, P. Riha, R. Benlikaya, P. Svoboda, and D. Petras, “A Flexible Multifunctional Sensor Based on Carbon Nanotube/Polyurethane Composite,” IEEE Sensors Council, vol. 13, pp. 4045-4048, 2013. [60] H. Yu, T. Huang, M. Lu, M. Mao, Q. Zhang and H. Wang, “Enhanced power output of an electrospun PVDF/MWCNTs-based nanogenerator by tuning its conductivity”, Nanotechnology, vol. 24, 2013. [61] S. Rafiei, S. maghsoodloo, M. Saberi, S. Lotfi, V. Motaghitalab, B. Noroozi and A. K. Haghi, “New horizons in modeling and simulation of electrospun nanofibers: A detailed review”, Cellulose Chemistry and Technology, vol. 48, pp. 401-424, 2014. [62] Z. H. Liu, C. T. Pan*, C. Y. Su, L. W. Lin, Y. J. Chen, J. S. Tsai, “A flexible sensing device based on a PVDF/MWCNT composite nanofiber array with an interdigital electrode”, Sensors & Actuators: A. Physical, vol. 211, pp.78-88, 2014. [63] X. Zong, K. Kim, D. Fang, S. Ran, B. S. Hsiao and B. Chu, “Structure and process relationship of electrospun bioabsorbable nanofiber membranes”, Polymer, vol. 43, pp. 4403-4412, 2002. [64] S. L. Shenoy, W. D. Bates, H. L. Frisch, and G. E. Wnek, “Role of chain entanglements on fiber formation during electrospinning of polymer solutions: good solvent, non-specific polymer–polymer interaction limit,” Polymer, vol. 46, pp. 3372-3384, 2005. [65] C. J. Buchko, L. C. Chen, Y. Shen, and D. C. Martin, “Processing and microstructural characterization of porous biocompatible protein polymer thin films,” Polymer, vol. 40, pp. 7397-7407, 1999. [66] “ANSYS User’s Manual”, Swanson Analysis System, Huston, Rev5.0, vol. 3, Element. |
電子全文 Fulltext |
本電子全文僅授權使用者為學術研究之目的,進行個人非營利性質之檢索、閱讀、列印。請遵守中華民國著作權法之相關規定,切勿任意重製、散佈、改作、轉貼、播送,以免觸法。 論文使用權限 Thesis access permission:自定論文開放時間 user define 開放時間 Available: 校內 Campus:永不公開 not available 校外 Off-campus:永不公開 not available 您的 IP(校外) 位址是 54.226.222.183 論文開放下載的時間是 校外不公開 Your IP address is 54.226.222.183 This thesis will be available to you on Indicate off-campus access is not available. |
紙本論文 Printed copies |
紙本論文的公開資訊在102學年度以後相對較為完整。如果需要查詢101學年度以前的紙本論文公開資訊,請聯繫圖資處紙本論文服務櫃台。如有不便之處敬請見諒。 開放時間 available 永不公開 not available |
QR Code |