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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 李世光 | |
| dc.contributor.author | Yao-Hsin Chou | en |
| dc.contributor.author | 周曜新 | zh_TW |
| dc.date.accessioned | 2021-06-17T06:22:57Z | - |
| dc.date.available | 2020-08-20 | |
| dc.date.copyright | 2018-08-20 | |
| dc.date.issued | 2018 | |
| dc.date.submitted | 2018-08-17 | |
| dc.identifier.citation | [1] Han, X. and L.P. Naeher, A review of traffic-related air pollution exposure assessment studies in the developing world. Environment International, 2006. 32(1): p. 106-120.
[2] Wang, H., et al., Long-term monitoring and source apportionment of PM2.5/PM10 in Beijing, China. Journal of Environmental Sciences, 2008. 20(11): p. 1323-1327. [3] W.H. Organization. The top 10 causes of death. 2018; Available: http://www.who.int/mediacentre/factsheets/fs310/en/. [4] W.H. Organization. 9 out of 10 people worldwide breathe polluted air, but more countries are taking action. 2018; Available: http://www.who.int/airpollution/en/. [5] M. Brauer. Poor air quality kills 5.5 million worldwide annually. 2018; Available: http://www.healthdata.org/. [6] 中華民國衛生福利部. 106年國人死因統計結果. 2018; Available: https://www.mohw.gov.tw/cp-16-41794-1.html. [7] Pope III, C.A., et al., Lung cancer, cardiopulmonary mortality, and long-term exposure to fine particulate air pollution. Jama, 2002. 287(9): p. 1132-1141. [8] 交通部中央氣象局. 台灣氣候統計相對濕度月平均. 2011; Available: https://www.cwb.gov.tw. [9] Y. Corporation. Problems with Static Electricity. 2006; Available: https://japan.yupo.com/english/printinfo/trouble/3.html. [10] Nguyen, V. and R. Yang, Effect of humidity and pressure on the triboelectric nanogenerator. Nano Energy, 2013. 2(5): p. 604-608. [11] Fong, E.-M. and W.-Y. Chung, A Hygroscopic Sensor Electrode for Fast Stabilized Non-Contact ECG Signal Acquisition. Sensors (Basel, Switzerland), 2015. 15(8): p. 19237-19250. [12] Motyl, E. and B. Lowkis, Effect of air humidity on charge decay and lifetime of PP electret nonwovens. Fibres and Textiles in Eastern Europe, 2006. 14(5): p. 59. [13] Ikezaki, K., et al., Charge stability of TPX film electrets. Journal of electrostatics, 1995. 35(1): p. 41-46. [14] Łowkis, B. and E. Motyl, Electret properties of polypropylene fabrics. Journal of electrostatics, 2001. 51: p. 232-238. [15] Yang, S., et al., Aerosol penetration properties of an electret filter with submicron aerosols with various operating factors. J Environ Sci Health A Tox Hazard Subst Environ Eng, 2007. 42(1): p. 51-7. [16] Ackley, M., Degradation of electrostatic filters at elevated temperature and humidity. Vol. 1. 1982. [17] Xu, B., et al., Investigation of air humidity affecting filtration efficiency and pressure drop of vehicle cabin air filters. Aerosol and Air Quality Research, 2014. 14(3): p. 1066-1073. [18] Contal, P., et al., Clogging of fibre filters by submicron droplets. Phenomena and influence of operating conditions. Journal of Aerosol Science, 2004. 35(2): p. 263-278. [19] Huang, S.-H., et al., Penetration of 4.5nm to aerosol particles through fibrous filters. Journal of Aerosol Science, 2007. 38(7): p. 719-727. [20] Liu, C., et al., Transparent air filter for high-efficiency PM2.5 capture. Nat Commun, 2015. 6: p. 6205. [21] Hinds, W.C., Aerosol Technology: Properties, Behavior, and Measurement of Airborne Particles. 1998: Wiley. [22] GeoDict. Filtration. 2018; Available: https://www.geodict.com/. [23] S.L. Brosseau and R.B. Ann. N95 Respirators and Surgical Masks. 2009; Available: https://blogs.cdc.gov/niosh-science-blog/2009/10/14/n95/. [24] Chang, Y.-L. Research and Development of Piezoelectret Surface Charge Water-washed Recoverable Mechanism. Master thesis. Institute of Applied Mechanics, NTU. 2016 [25] C. Sun. Mechanical or Electret Filters? 2008; Available: http://www.inda.org/SPEAKERS/archives/intc08_49_exec.pdf. [26] T.N.I.f.O.S.a. Health. NIOSH Guide to the Selection and Use of Particulate Respirators. 1996; Available: https://www.cdc.gov/niosh/docs/96-101/default.html. [27] C.I. Air. PulsePleat Filters. 2016; Available: http://www.clarcorindustrialair.com/. [28] P. Corporation. Ultipor® GF Series Filter Cartridges for Ink Jet Ink Formulation. 2017; Available: https://shop.pall.com/us/en/. [29] Carl. Air Purifier Technologies: HEPA Filter. 2011; Available: http://air-purifier-reviewsite.com/featured/air-purifier-technologies-hepa-filter/. [30] Ku, B.K. and A.D. Maynard, Generation and investigation of airborne silver nanoparticles with specific size and morphology by homogeneous nucleation, coagulation and sintering. Journal of Aerosol Science, 2006. 37(4): p. 452-470. [31] Fuchs, N.A., et al., The Mechanics of Aerosols. Physics Today, 1965. 18(4): p. 73-73. [32] Greenspan, L., Humidity fixed points of binary saturated aqueous solutions. Journal of research of the national bureau of standards, 1977. 81(1): p. 89-96. [33] Young, J.F., Humidity control in the laboratory using salt solutions—a review. Journal of Applied Chemistry, 1967. 17(9): p. 241-245. [34] Gupta, D., et al., Hygroscopic behavior of NaCl–MgCl<sub>2</sub> mixture particles as nascent sea-spray aerosol surrogates and observation of efflorescence during humidification. Atmospheric Chemistry and Physics, 2015. 15(19): p. 11273-11290. [35] Jennings, S.G., The mean free path in air. Journal of Aerosol Science, 1988. 19(2): p. 159-166. [36] K.N. World. KNH-康乃馨PM2.5 Z摺口罩. 2018; Available: https://www.knhtour.com/index.php?option=com_content&view=article&id=73&Itemid=122&lang=zh-TW. [37] M. Company. 3M™ 淨呼吸™ 專業級捲筒式靜電空氣濾網 9809-R. 2018; Available: https://www.3m.com.tw/3M/zh_TW/company-tw/. [38] T.A. Polymers. Cyclic Olefin Copolymer (COC). 2011; Available: http://www.topas.com/sites/default/files/files/TOPAS_Brochure_E_2014_06%281%29.pdf. [39] Lamonte, R.R. and D. McNally, Cyclic olefin copolymers. Advanced Materials and Processes, 2001. 159(3): p. 33-36. [40] Sessler, G., G. Yang, and W. Hatke. Electret properties of cycloolefin copolymers. in Electrical Insulation and Dielectric Phenomena, 1997. IEEE 1997 Annual Report., Conference on. 1997. IEEE. [41] Rogulska, M., A. Kultys, and J. Lubczak, New thermoplastic polyurethane elastomers based on aliphatic–aromatic chain extenders with different content of sulfur atoms. Journal of Thermal Analysis and Calorimetry, 2015. 121(1): p. 397-410. [42] Perfectex. TPU (Thermoplastic Polyurethane). 2018; Available: http://www.perfectex.com/thermoplastic.html. [43] A. Polymers. Introduction to Thermoplastic Polyurethane (TPU) Bridging the Gap between Rubber and Plastic. 2018; Available: https://www.amcopolymers.com/news/introduction-to-thermoplastic-polyurethane-tpu-bridging-the-gap-between-rubber-and-plastic. [44] O.-. SpecialChem. Complete Guide on Thermoplastic Polyurethanes (TPU). 2018; Available:https://omnexus.specialchem.com/selection-guide/thermoplastic-polyurethanes-tpu. [45] Mărieş, G., G. Bandur, and G. Rusu, Influence of Processing Temperature on Some Mechanical-Physical Properties of Thermoplastic Polyurethane Desmopan KA 8377 Used for Injection Moulding of Performance Sport Products. Bull. Politehnica, 2008. 53: p. 131-134. [46] Techné. TPU - Thermoplastic polyurethane. 2018; Available: https://www.techne.fr/uk/expertise/materials/tpu. [47] Schmidt, H. and M. Mennig, Wet coating technologies for glass. INM, Institut für Neue Materialien, Saarbrücken, Germany, 2000. 11. [48] Giacometti, J.A. and O.N. Oliveira, Corona charging of polymers. IEEE Transactions on Electrical Insulation, 1992. 27(5): p. 924-943. [49] Jones, J., et al., A simple analytic alternative to Warburg's law. Journal of Physics D: Applied Physics, 1990. 23(5): p. 542. [50] Goldman, A., et al. Current distributions on the plane for point-plane negative coronas in air, nitrogen and oxygen. in Proc. 9th Int. Conf. On Gas Disch. And their Appl., Venezia, Italy. 1988. [51] Grassi, W. and D. Testi, Induction of waves on a horizontal water film by an impinging corona wind. IEEE Transactions on Dielectrics and Electrical Insulation, 2009. 16(2). [52] Ahn, Y.C., et al., Development of high efficiency nanofilters made of nanofibers. Current Applied Physics, 2006. 6(6): p. 1030-1035. [53] Wang, S.C. and R.C. Flagan, Scanning Electrical Mobility Spectrometer. Aerosol Science and Technology, 1990. 13(2): p. 230-240. [54] 吳栢森. The measurement accuracy of nanoparticle and submicron particle number distributions by the Engine Exhaust Mobility Particle Sizer. Master thesis. National Chiao Tung University, NTCU. 2012 [55] TSI. Series 3080 Electrostatic Classifiers Operation and Service Manual 2009; Available:http://cires1.colorado.edu/jimenezgroup/Manuals/SMPS_3080_manual.pdf. [56] TSI. Ultrafine Condensation Particle Counter Model 3776. 2007; Available: http://tsi.com/uploadedFiles/Product_Information/Literature/Spec_Sheets/3776_2980345.pdf. [57] I. P. Herman, Physics of the Human Body. Columbia University, New York: Springer Verlag, 2016. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/72092 | - |
| dc.description.abstract | 隨著近年來空氣污染的議題越來越嚴重，因空污所引起的疾病，如：缺血性心臟病、慢性阻塞肺病、呼吸道感染、心血管疾病、中風、癌症等，皆佔據全球十大死因半數以上；因此如何有效的防止吸入污染物或懸浮微粒PM2.5，已成為世界各國主要研究的目標之一。
針對各種市售濾材的過濾機制中，尤以靜電過濾(Electrostatic attraction)在微粒粒徑為100至400 nm間擁有較高的過濾效率，因此在過濾方面，靜電式濾材擁有非常高的重要性與眾多的應用及研究；然而，對於潮濕的環境，空氣中的水氣易使靜電式濾材的表面電位加快流失，導致其壽命縮短、過濾效率不佳等影響。另外，在高油霧濃度的環境中，靜電濾材則易因吸附油性顆粒而影響其過濾效果，使過濾效能快速喪失，導致過濾失效等問題。 為了改善靜電濾材於潮濕環境中及高油霧濃度環境中使用上的限制，並提升靜電的保持能力與過濾效能，我們積極開發擁有良好水氣阻隔特性之環烯烴共聚物(Cyclic Olefin Copolymer, COC)與疏油性佳的綠色材料，熱塑性聚氨酯(Thermoplastic Polyurethane, TPU)，以低壓降不織布為基底製成防潮塗層濾材與疏油塗層濾材，將其包覆於市售靜電濾材兩側後，除了一般環境與環控環境下之表面電位觀測，為了即時測試高濕環境的過濾效率，本研究設計一可環控系統夾具分別進行環控表面電位觀測、環控過濾效率測試以及油霧過濾效率的測試實驗，並且證實了在高濕度環境下，靜電濾材的表面電位與過濾效率皆有迅速下降的趨勢；但在具有本研究所研製之防潮濾材的防護下，將能有效防止濕度所帶來的影響，且能進一步增加靜電濾材的帶電能力與過濾效率並延長其使用壽命；油霧過濾的部分，我們透過低壓降之疏油濾材疊層放置於靜電濾材前，使油霧先被疏油濾材攔截，比無防護時的靜電濾材較不易快速吸油，達到提升使用受命、過濾效率與過濾膜品質的效果。 | zh_TW |
| dc.description.abstract | With the increasing air pollution problem in recent years, diseases related by air pollution has become one of the leading cause worldwide, such as ischemic heart disease, chronic obstructive pulmonary disease, respiratory infections, cardiovascular diseases, stroke, cancer, etc., most of them are top ten causes of death in the world. Therefore, how to effectively prevent inhalation of pollutants or PM2.5 has become the one of the main research field in the world.
Among the five filtration mechanism, electrostatic attraction has the higher filtration efficiency in the particle size ranging from 100 nm to 400 nm than other mechanisms. However, the moisture in the air tends to cause the loss of the surface potential, especially in humid environment, resulting in shorter life time and lower filtration efficiency. In addition, in an environment containing high concentration of oil mist, the filter material is liable to be masked by the adsorption of oil particles, leading to a rapid lost of electrostatic charges and loss of filtration efficiency. In order to improve the dilemma of electrostatic filter used in environments with a high humidity or a high concentration of oil mist, a cyclic olefin copolymer (COC) masking filter for moisture resistance and thermoplastic polyurethane (TPU) masking filter for oil mist resistance are developed. These masking filters have a low pressure drop and can be place in front of commercial electrostatic filters to maintain the life time of electrostatic filters and performance. Experimental results confirm that the surface potential and the filtration efficiency can be reduced in high humidity environment. By masking commercial electrostatic filters with developed COC moisture masing filter, the influence of humidity can be minimized, and the filtration efficiency and charging capacity of the electrostatic filter can be increased. On the other hand, using the TPU oil mist masking filter, majority of oil mist can first be intercepted by the oleophobic filter that being placed in front of the electrostatic filter. Finally, we experimentally verified that the lifetime, the filtration efficiency and the quality of the masked electrostatic filter can be enhanced. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-17T06:22:57Z (GMT). No. of bitstreams: 1 ntu-107-R05543061-1.pdf: 8983112 bytes, checksum: 3d894b4cdbe0cf7c76985c5ff4789a95 (MD5) Previous issue date: 2018 | en |
| dc.description.tableofcontents | 口試委員會審定書 i
誌謝 ii 中文摘要 iii ABSTRACT iv 目錄 v 圖目錄 vii 表目錄 xii 第1章 緒論 1 1.1 研究背景與動機 1 1.2 文獻回顧 3 1.2.1 高濕度環境對於靜電濾材的影響 3 1.2.2 油霧對於靜電濾材的影響 8 1.3 論文架構 11 第2章 濾材與過濾原理 12 2.1 濾材的種類 12 2.2 基本過濾機制(Deposition Mechanisms) 14 2.3 過濾效率(Filtration efficiency, E) 16 2.3.1 穿透率(Penetration, P) 16 2.3.2 單纖維理論(Single fiber efficiency, EΣ) 17 2.4 過濾膜品質(Filter Quality, qF) 19 2.4.1 壓降(Pressure drop, Δp) 19 2.4.2 粒徑大小(Particle size) 20 2.4.3 填充密度(Packing density, α) 21 2.5 過濾微粒性質 22 2.5.1 膠結(Coagulation) 22 2.5.2 凝結(Condensation) 26 2.6 其他影響因素 28 第3章 防護層材料 30 3.1 環烯烴共聚物(Cyclic Olefin Copolymer, COC) 30 3.2 熱塑性聚氨酯(Thermoplastic Polyurethane, TPU) 34 第4章 實驗方法與系統架設 36 4.1 防護層製備 36 4.1.1 浸塗法(Dip-coating) 36 4.1.2 電暈充電(Corona charging) 37 4.2 表面電位觀測方法 39 4.3 過濾效率量測方法與系統設計 41 4.3.1 環控過濾效率量測實驗方法 45 4.3.2 油霧負載穿透率量測實驗方法 45 第5章 實驗結果與討論 47 5.1 表面電位實驗結果與分析 53 5.1.1 商用靜電濾材於一般環境8小時之表面電位連續觀察分析 53 5.1.2 商用靜電濾材於一般環境20天之表面電位連續觀察分析 54 5.1.3 3M濾材於不同控制濕度環境之表面電位連續觀察分析 56 5.2 過濾效率實驗結果與分析 58 5.2.1 商用靜電濾材環控過濾效率量測與分析 59 5.2.2 商用靜電濾材長時間環控過濾效率量測與分析 62 5.2.3 商用靜電濾材負載油霧過濾效率量測與分析 64 第6章 結論與未來展望 72 6.1 結論 72 6.2 未來展望 72 參考文獻 73 | |
| dc.language.iso | zh-TW | |
| dc.subject | 熱塑性聚氨酯 | zh_TW |
| dc.subject | 環烯烴共聚物 | zh_TW |
| dc.subject | 過濾效率 | zh_TW |
| dc.subject | 濕度 | zh_TW |
| dc.subject | 表面電位 | zh_TW |
| dc.subject | 靜電濾材 | zh_TW |
| dc.subject | 油霧過濾 | zh_TW |
| dc.subject | cyclic olefin copolymer filter | en |
| dc.subject | Electrostatic filter | en |
| dc.subject | humidity | en |
| dc.subject | Oil mist filtration | en |
| dc.subject | Surface potential | en |
| dc.subject | Filtration efficiency | en |
| dc.subject | PM2.5 | en |
| dc.subject | thermoplastic polyurethane filter | en |
| dc.title | 可應用於靜電濾材保值之烯烴共聚物防水濾材及熱塑性聚氨酯防油濾材之開發 | zh_TW |
| dc.title | Development of Moisture-proof Cyclic Olefin Copolymer and Oil-proof Thermoplastic Polyurethane Masking Filters for the Application of Electrostatic Filter | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 106-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.coadvisor | 許聿翔,吳光鐘 | |
| dc.contributor.oralexamcommittee | 廖英志,黃盛修 | |
| dc.subject.keyword | 靜電濾材,濕度,油霧過濾,表面電位,過濾效率,環烯烴共聚物,熱塑性聚氨酯, | zh_TW |
| dc.subject.keyword | PM2.5,Electrostatic filter,humidity,Oil mist filtration,Surface potential,Filtration efficiency,cyclic olefin copolymer filter,thermoplastic polyurethane filter, | en |
| dc.relation.page | 75 | |
| dc.identifier.doi | 10.6342/NTU201803672 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2018-08-18 | |
| dc.contributor.author-college | 工學院 | zh_TW |
| dc.contributor.author-dept | 應用力學研究所 | zh_TW |
| 顯示於系所單位： | 應用力學研究所 | |
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