Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/3367
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dc.contributor.advisor吳震裕zh_TW
dc.contributor.authorho, sen-shiangen_US
dc.contributor.author何森祥zh_TW
dc.date2005zh_TW
dc.date.accessioned2014-06-06T05:31:49Z-
dc.date.available2014-06-06T05:31:49Z-
dc.identifier.urihttp://hdl.handle.net/11455/3367-
dc.description.abstractThe application of ATH is limited by the lower decomposition temperatures(200~210℃). It decomposes gradually with the loss of water acting as flame suppressant. This proposal is aimed to organic modify ATH surface by surfactant and stearic acid and through its hydroxyl groups reacted with Tetraethylorthosilicate and Amionpropyl triethyoxysilane compounds by condensation reaction. High thermally stable silicone compounds will be utilized to impart a coating layer on ATH to improve the thermal decomposition temperatures. Also, the dispersion of modified ATH will be evaluated with respect to the dispersion of ATH in polypropylene (PP) matrix. In the experiment of ATH absorb surfactant, find the ATH with the absorbing of cation surfactant is greater than anion surfactant. The ATH with stearic acid treatment, the analysis of contact angle is increased from 71.7o to 105.4o, represented the organic degree of the ATH. The samples were prepared by melt blending method. To prepare PP/ATH composites, the content of ATH varied from 10、30、60wt%. According to the result of TGA at 95 wt%, as the ATH increase in PP matrix, the decomposition temperature decreases. The value of LOI is proportional to the content of ATH. Dynamic mechanical analysis data shows the addition of aluminum trihydroxide enhances the storage modulus from 5.63 E8 Pa to 7.15 E8 Pa~1.90 E9 Pa measured at 30℃.zh_TW
dc.description.abstract含水之氫氧化鋁由於分解溫度較低,因此限制其應用加工之溫度範圍較低,約在200℃~210℃時開始釋出水分。本研究即針對氫氧化鋁之表面進行改質,利用界面劑及硬酯酸與氫氧化鋁吸附來做親油化的改質;並以矽酸乙酯( TEOS )或胺基矽氧烷偶合劑( APS )改質氫氧化鋁表面,利用表面之氫氧基與矽烷縮合,將耐熱性較高之矽化合物包覆於氫氧化物表面,以提高其耐熱性,並進一步探討在表面改質後,其在聚丙烯基材中之分散性。 在氫氧化鋁與界面劑吸附實驗中;發現氫氧化鋁對陰離子界面活性劑的吸附量大於陽離子界面活性劑;在硬酯酸改質氫氧化鋁方面,由接觸角分析可得知經改質過後的氫氧化鋁從71.70增加至1050,代表了其親油化程度的增加;以TEOS及APS改質氫氧化鋁表面,並使其耐熱溫度提升3~8℃。 本研究以熔融混練法製程,添加10、30、60wt%三種不含量的氫氧化鋁來製備聚丙烯/氫氧化鋁複材;由TGA的結果發現隨著氫氧化鋁含量的增加於聚丙烯中,於TG%=95時,其熱分解溫度皆有所下降;LOI值隨著氫氧化鋁含量的增加而上升,代表了添加氫氧化鋁有助於阻燃性質的提升;DMA分析發現,添加氫氧化鋁於聚丙烯之複材,於30℃下之儲存模數由5.63 E8 Pa上升至7.15 E8 Pa~1.90 E9 Pa,提升了26.9~237.47%。zh_TW
dc.description.tableofcontents目錄 中文摘要………………………………………………………………Ⅰ 英文摘要………………………………………………………………Ⅱ 目錄……………………………………………………………………Ⅲ 表目錄…………………………………………………………………Ⅴ 圖目錄………………………………………………………………....Ⅵ 一、緒論 1.1 前言……………………………………………………………….1 1.2 氫氧化鋁之構造與種類介紹…………………………………….2 1.3 聚丙烯/ 氫氧化鋁複合材料之介紹……………………………..3 1.4 研究動機與目的………………………………………………….4 二、文獻回顧與研究方法 2.1 氫氧化鋁的應用與表面改質…………………………………….5 2.2 氫氧化鋁表面改質相關文獻…………………………………….7 2.3 聚丙烯與氫氧化鋁複材相關文獻……………………………...11 2.4 研究架構與流程圖……………………………………………...16 三、實驗 3.1 實驗項目………………………………………………………...18 3.2 實驗材料………………………………………………………...19 3.3 實驗儀器………………………………………………………...20 3.4 實驗步驟………………………………………………………...22 四、結果與討論 4.1 氫氧化鋁表面形態分析………………………………………...27 4.2 氫氧化鋁等電位點的測定……………………………………...27 4.3 氫氧化鋁吸附陽離子與陰離子界面劑之分析………………...28 4.4 氫氧化鋁吸附硬酯酸之分析………………...…………………29 4.5 氫氧化鋁吸附PP-g-MA之分析……………………………….31 4.6 氫氧化鋁處理APS、TEOS 之分析……………………………32 4.7氫氧化鋁以core shell 法包覆二氧化矽..………………………32 4.8 聚丙烯/ 氫氧化鋁複合材料之製備與物性分析………………33 4.8.1 熱重損失分析( TGA ) ……………………………………...34 4.8.2 限氧指數分析( LOI ) ………………………………………35 4.8.3 動態機械分析( DMA ) …………………………………….36 4.8.4 低溫斷裂面分析( SEM ) …………………………………..38 五、結論……………………………………………………………….40 六、參考文獻…………………………………………………………41 附錄……………………………………………………………………...84zh_TW
dc.language.isoen_USzh_TW
dc.publisher化學工程學系zh_TW
dc.subject氫氧化鋁zh_TW
dc.subject表面改質zh_TW
dc.subject分散性zh_TW
dc.subject熱穩定性zh_TW
dc.titlePreparation and Physical Properties of Polypropylene/Aluminum trihydroxide compositesen_US
dc.title聚丙烯/氫氧化鋁複合材料之製備與物性分析zh_TW
dc.typeThesis and Dissertationzh_TW
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.openairetypeThesis and Dissertation-
item.cerifentitytypePublications-
item.fulltextno fulltext-
item.languageiso639-1en_US-
item.grantfulltextnone-
Appears in Collections:化學工程學系所
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