English  |  正體中文  |  简体中文  |  Items with full text/Total items : 16335/24215 (67%)
Visitors : 11035714      Online Users : 99
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version
    高師機構典藏 NKNUIR > 理學院 > 化學系 > 博碩士論文 >  Item 987654321/4827
    Please use this identifier to cite or link to this item: http://ir.nknu.edu.tw/ir/handle/987654321/4827


    題名: WPU/DAD/clay 有機/無機奈米複合材料的合成與其物性之研究
    Synthesis And Properties of WPU/DAD/clay Organic/Inorganic Nanocomposite Materies
    Authors: 陳惠萍
    Hui-Ping Chen
    貢獻者: 鄭寶樹
    Pao-Swu Cheng
    Keywords: 水性聚胺基甲酸酯;黏土;抗靜電;奈米複合材料
    waterborne polyurethane;clay;anti-electrostatic;nanocomposites
    Date: 2009-09-03
    Issue Date: 2010-09-06 14:18:49 (UTC+8)
    Abstract: 本實驗主要在探討水性聚胺基甲酸酯奈米複合材料作為耐熱及抗靜電光學薄膜之製備與性能研究。首先以DAD作為偶合劑,將黏土進行有機化改質,以紅外線光譜儀(FT-IR)鑑定化學鍵結情形,合成WPU/DAD/clay複合光學薄膜。再利用TGA、DSC、Photo-UV 光譜儀進行耐熱性、透光性、表面電阻與薄膜結構檢測分析。
    利用FT-IR檢測聚胺基甲酸酯與DAD/clay反應過程中的鍵結變化;TEM來觀察奈米複合材料的表面結構形態。根據TGA測定結果,在加入DAD/clay後,其熱裂解溫度較?的聚胺基甲酸酯提升約9.37℃~36.21℃,利用UV-visible光譜儀分析檢測在可見光區呈現優異之光穿透性。在抗靜電物性方面,合成出的聚胺基甲酸酯/DAD/黏土光學薄膜表層塗佈有機抗靜電劑,Saftomer ST-2000H,後其表面電阻較純的聚胺基甲酸酯者有大幅降低之趨勢,其值從4.07×1013Ω/cm2降至8.29×107Ω/cm2,已達到一般抗靜電耐米複合材料的標準。
    The main objective of this research is to study and develop the synthetic methods of highly heat resistant and anti-electrostatic WPU nano-composite materials. Firstly, DAD is used as a coupling agent to perform organic modification of clay and identify chemical linkage status with FT-IR. The nanocomposites were spin-coated with the spin coator at room temperature to form an optical thin film. The thermal properties, the surface resistance and light transparency were measured and discussed.
    The crosslinking reactions between pure waterborne polyurethane and DAD/clay is investigated by FT-IR. The morphology structure of the nano-composites is observed with TEM. According to the results of TGA, the thermal decomposition temperatures (Td) of these nano-composites are 9.37℃~36.21℃ higher than that of pure waterborne polyurethane . The excellent transparencies of these thin films in visible light regions are detected by UV-visible spectrometer. On the aspect of anti-electrostatic property, the surface resistances of the WPU/DAD/clay thin films which was coated with organic anti-electrostatic reagent, Saftomer ST-2000H, is highly decreased from 4.07×1013Ω/cm2 to 8.29×107Ω/cm2. They have reached the standard scales of anti-electrostatic nanocomposites.
    Appears in Collections:[化學系] 博碩士論文
    [化學系] 鄭寶樹

    Files in This Item:

    File Description SizeFormat
    index.html0KbHTML702View/Open


    All items in NKNUIR are protected by copyright, with all rights reserved.


    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback