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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 黃鼎偉(Ding-Wei Huang) | |
dc.contributor.author | Kuei-Ta Cheng | en |
dc.contributor.author | 程奎達 | zh_TW |
dc.date.accessioned | 2021-05-17T09:16:36Z | - |
dc.date.available | 2012-08-15 | |
dc.date.available | 2021-05-17T09:16:36Z | - |
dc.date.copyright | 2012-08-15 | |
dc.date.issued | 2012 | |
dc.date.submitted | 2012-08-01 | |
dc.identifier.citation | [1] George Odian, Principles of polymerization, Fourth Edition, Wiley-Interscience, 2004.
[2] B. D. Fairbanks, M. P. Schwartz, C. N. Bowman, and K. S. Anseth, “Photoinitiated polymerization of PEG-diacrylate with lithium phenyl-2,4,6-trimethylbenzoylphosphinate: polymerization rate and cytocompatibility,” Biomaterials 30, 6702‒6707, 2009. [3] J.-P. Fouassier, Photoinitiation, polymerization, and photocuring: Fundamentals and Applications, Munich:Carl Hanser Verlag, 1995. [4] G. Terrones and A. J. Pearlstein, “Effects of Optical Attenuation and Consumption of a Photobleaching Initiator on Local Initiation Rates in Photopolymerizations,” Macromolecules 34, 3195‒3204, 2001. [5] G. Terrones and A. J. Pearlstein, “Effects of Kinetics and Optical Attenuation on the Completeness,Uniformity, and Dynamics of Monomer Conversion in Free-Radical Photopolymerizations,” Macromolecules 34, 8894‒8906, 2001. [6] G. Terrones and A. J. Pearlstein, “Nonuniformity of Chain-Length Distributions in Photopolymerized Layers,” Macromolecules 36, 6346‒6358, 2003. [7] S. R. Seshadri, “Effects of absorption on the spreading of a laser beam,” Opt.Lett. 29, 1179‒1181, 2004. [8] H. Wang, J.-H. Ryu, K.-S. Lee, C. H. Tan, L. Jin, S. Li, C.-H. Hong, Y.-H. Cho, and S. Liu, “Active packing method for blue light-emitting diodes with photosensitive polymerization: formation of self-focusing encapsulates,” Opt. Express 16, 3680‒3685, 2008. [9] L. Musanje, B.W. Darvell, “Curing-light attenuation in filled-resin restorative materials,” Dental Materials 22, 804‒817, 2006. [10] Antheunis Versluis, Daranee Tantbirojn, William H. Douglas ,“Distribution of transient properties during polymerization of a light-initiated restorative composite,” Dental Materials 20, 543‒553, 2004. [11] Kou Fujita, Takuji Ikemi, Norihiro Nishiyama ,“Effects of particle size of silica filler on polymerization conversion in a light-curing resin composite,” Dental Materials 27, 1079‒1085, 2011. [12] Nazanin Emami, Mikael Sjodahl, Karl-Johan M. Soderholm ,“How filler properties, filler fraction, sample thickness and light source affect light attenuation in particulate filled resin composites,” Dental Materials 21, 721‒730, 2005. [13] G.B. dos Santos, R.V. Monte Alto, H.R. Sampaio Filho, E.M. da Silva, C.E. Fellows,“Light transmission on dental resin composites,” Dental Materials 24, 571‒576, 2008. [14] M. E. Khosroshahi, M. Atai, M. S. Nourbakhsh ,“Photopolymerization of dental resin as restorative material using an argon laser,” Lasers Medicine Science 23, 399‒406, 2008. [15] Katsunari Okamoto, Fundamentals of Optical Waveguides, Academic Press, 2000. [16] http://en.wikipedia.org/wiki/File:GaussianBeamWaist.svg [17] James J. Diamond, Jonathan M. Smith ,“Photochemistry In Strongly Absorbing Media,” J. Phys. Chem.92, 4922‒4938, 1988. [18] W. Geurtsen, G. Leyhausen, “Chemical-Biological Interactions of the Resin Monomer Triethyleneglycoldimethacrylate (TEGDMA),” Journal of Dental Research 80, 2046‒2050, 2001. [19] C. Hays, E. G. Kendall, “An analysis of Knoop Microhardness,” Metallography 6, 275‒282, 1973. [20] R. Devi, S. C. Murugavel,“Synthesis, Spectral, and Thermal Characterization of Photoreactive Epoxy Resin Containing Cycloalkanone Moiety in the Main Chain,” Journal of Applied Polymer Science 124, 58‒66, 2012. [21] Carola Esposito Corcione, Mariaenrica Frigione,“Factors influencing photo curing kinetics of novel UV-cured siloxane-modified acrylic coatings: Oxygen inhibition and composition,” Thermochimica Acta 534, 21‒27, 2012. [22] Maciej Podgorski,“Structure–property relationship in new photo-cured methacrylate-based dental resins” Dental Materials 28, 398‒409, 2012. [23] Wei Zhang, HuaNan Dong, Tao Zhang , JinBao Guo, Jie Wei, “The Effect of Monomer Structures on Photopolymerization Kinetics and Volume Shrinkage Behavior for Plasma Display Panel Barrier Rib,” Journal of Applied Polymer Science 125, 77‒87, 2012. [24] J. L. Ferracane, E. H. Greener, “The effect of resin formulation on the degree of conversion and mechanical properties of dental restorative resins ,” Journal of Biomedical Materials Research 20, 121‒131, 1986. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/6704 | - |
dc.description.abstract | 在了解光照厚層光敏感樹脂高分子聚合反應的動力方程式後,發現高分子聚合速率是光照強度、光起始劑濃度和吸收率的函式,光照強度分佈對樹脂固化的形狀影響很大,本篇論文我們利用解數個動力學耦合方程式來模擬高分子材料固化的過程,光照材料固化隨時間空間變化的情況都可以模擬出來;以往牙齒修復使用的光源接近發散的平面光束,光入射光敏感樹脂時受到表面或淺層材料吸收,使光照強度在進入深層或底層材料已大幅衰減,造成表面或淺層材料固化反應較劇烈,深層或底層材料固化反應較緩慢,光敏感樹脂表面與底層固化不均勻的現象,我們利用聚焦高斯光束來彌補光照強度被表面或淺層材料吸收所造成的衰減,設計在光照圓柱中心處表面初始光照強度與底層初始光照強度相同,在適當選取高斯光束的參數,像是光照強度、光束腰寬、波前曲率半徑等,可以使樹脂固化在深度方向較為均勻,而且只要知道單體分子固化門檻值(單體分子濃度降為初始濃度的多少百分比)、鏈聚合反應的傳播和終止反應常數,我們推導簡便的公式可以精確估算樹脂固化的時間;這些研究結果對於醫學及工業之厚層光照高分子固化應用有幫助。 | zh_TW |
dc.description.abstract | The kinetics of photopolymerization of thick photosensitive resins illuminated by a focused Gaussian beam was studied theoretically. The polymerization rate is a function of the absorbance and concentration of the photoinitiator. Meanwhile, the light intensity distribution may also have strong effects on the shape of the polymerized resins. In this thesis, several kinetic coupling equations are solved to simulate the curing process of polymerization. The temporal and spatial photopolymerization process could be simulated quantitatively. In the past, the light source used in the dental restorations was close to the diverged plane wave. The incident light will be absorbed by surface or shallow materials, and light intensity in the deep materials attenuates rapidly. Therefore, we get an uneven polymerized resins which have non-ideal biological functions. We use a focused Gaussian beam to compensate for the light intensity attenuation caused by absorption of the surface or shallow materials, and we make the initial light intensity on the surface the same as the initial light intensity on the bottom. With a proper control of the characteristics of a focused Gaussian beam such as the light intensity, focusing distance, and beam waist, a nearly uniform polymerized resins can be achieved. As long as we know the polymerization threshold value (the concentration of monomers reduced to a specific percentage of the initial concentration), the propagation constant and the termination constant of radical chain polymerization, we could estimate quantitatively the completion time of polymerized resins by a simple equation. The theoretical results would be useful for designing the light sources for the medical and industrial applications using thick photopolymers. | en |
dc.description.provenance | Made available in DSpace on 2021-05-17T09:16:36Z (GMT). No. of bitstreams: 1 ntu-101-R98941004-1.pdf: 4165583 bytes, checksum: a98f7791261c7f37ce5a26d46db15071 (MD5) Previous issue date: 2012 | en |
dc.description.tableofcontents | 口試委員會審定書 #
誌謝 ...................................................................................................................................i 中文摘要 .......................................................................................................................... ii ABSTRACT .................................................................................................................... iii 目錄 .................................................................................................................................iv 圖目錄 ..............................................................................................................................vi 表目錄 ........................................................................................................................... viii 第 1 章 緒論………………………………………………………………………1 1.1 雷射…………………………………………………………………………1 1.2 光照高分子聚合反應(Photopolymerization)[1]…………………………..2 1.3 研究動機……………………………………………………………………2 第 2 章 背景知識…………………………………………………………………5 2.1 高斯光束(Gaussian Beam)………………………………………………...5 2.2 模擬工具……………………………………………………………………7 2.2.1 光束傳播法(Beam Propagation Method,BPM)[15] ..................... 8 2.2.2 有限差分法(Finite Difference Method,FDM)[15] ....................... 9 2.2.3 透明邊界法則(Transparent boundary conditions,TBC)[15] ...... 11 2.3 光聚合反應的原理(Principles of Photopolymerization)[1]……………11 2.3.1 自由基鏈聚合反應(Radical Chain Polymerization)[1] ................ 12 第 3 章 文獻回顧………………………………………………………………..16 3.1 在光照高分子聚合系統中光強度衰減和光起始劑消耗之數學模型推導及分析[4]…………………………………………………………………..16 3.2 在光照高分子聚合層之單體分子轉換分佈不均勻性(Nonuniformity of Monomers Conversion Distribution in Photopolymerized Layers)[5]……19 第 4 章 設計光源使光照高分子材料均勻固化………………………………..23 4.1 光照聚合物的固化反應方程式…………………………………………23 v 4.2 用聚焦光源固定照射高分子材料,分析其與平面光照射的固化情況…27 4.3 入射聚焦光源使高分子材料均勻固化之高斯光束設計方法…………35 4.4 估計使用適度聚焦高斯光束作光源照射高分子材料固化所需時間…40 4.5 聚焦高斯光束與平面光修復牙齒效果比較…..………….……………...42 第 5 章 結論與未來展望……………………………………………………......45 參考文獻……………………………………………………………………………….46 | |
dc.language.iso | zh-TW | |
dc.title | 雷射固化光聚合高分子之動力學研究 | zh_TW |
dc.title | Kinetics of Photopolymerization for Laser Cured Resins | en |
dc.type | Thesis | |
dc.date.schoolyear | 100-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 魏培坤(Pei-Kuen Wei),林晃巖(Hoang-Yan Lin) | |
dc.subject.keyword | 光照高分子固化,光敏感樹脂,牙齒修復, | zh_TW |
dc.subject.keyword | photopolymerization,laser cured resins,dental restoration, | en |
dc.relation.page | 48 | |
dc.rights.note | 同意授權(全球公開) | |
dc.date.accepted | 2012-08-01 | |
dc.contributor.author-college | 電機資訊學院 | zh_TW |
dc.contributor.author-dept | 光電工程學研究所 | zh_TW |
顯示於系所單位: | 光電工程學研究所 |
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