Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/3461
DC FieldValueLanguage
dc.contributor.advisor戴憲弘zh_TW
dc.contributor.advisorJiangjen Linen_US
dc.contributor.advisor林江珍zh_TW
dc.contributor.author陳慶鴻zh_TW
dc.contributor.authorChen, Chinghung -en_US
dc.date2003zh_TW
dc.date.accessioned2014-06-06T05:31:59Z-
dc.date.available2014-06-06T05:31:59Z-
dc.identifier.urihttp://hdl.handle.net/11455/3461-
dc.description.abstractWater dispersible polyisocyanates (WDPI), or so called “hardeners”, can be used for enhancing physical properties of waterborne polyurethanes(WBPU) through crosslinking and structural interactions. The object of this research has attempted to correlate the composition variations in WDPI with the adhesive performances of WBPU. This research has synthesized a number of urea and biuret types WDPIs by reacting low percentages of commercially available, highly ethoxylated polyether mono- and di-amines (Jeffamine) with 1,6-hexamethylene diisocyanate trimer (HDI Trimer). The new urea and biuret derivatives synthesized were then added to WBPU to test their adhesive performances. We have found that low viscosity biuret-based WDPI are particularly effective in enhancing the green strength of WBPU in adhesive testings. In yet another research, a few percent of completely defoliated Montmorillonite have been added to WBPU and investigated the possible enhancement of WBPU's physical properties. Except for slight changes in elevation in modulus of the resulting nanocomposite, there were no great enhancement of mechanical properties found. It seems that the defoliated Montmorillonite has not being stabilized in the WBPU solution. More formulation change in WBPU seems needed in this effort.en_US
dc.description.abstract水分散型多元異氰酸鹽中的高活性異氰酸鹽官能基,能和任何帶有活性氫的結構反應。因此應用在水性樹酯的交聯時,可以大幅提昇機械性質、耐熱性質及接著性質,尤其是水性聚胺酯接著劑。瞭解水分散型多元異氰酸鹽的化學設計與結構間的關係是本研究的主要目標。 本研究中藉由添加少量的聚乙烯醚一元胺與二元胺和1,6-己二異氰酸鹽三聚體反應合成一系列的脲素與縮二脲水分散型多元異氰酸鹽。將此合成的脲素與縮二脲水分散型多元異氰酸鹽添加3%至水性聚胺酯,以接著拉力及接著後耐熱拉力作為應用測試。測試結果發現,縮二脲水分散型多元異氰酸鹽應用在水性聚胺酯的接著拉力測試時,在高分子機械強度上有明顯的增強,尤其在初期強度有明顯之提升。 在另一個研究中藉由摻混少量的分散型蒙脫土至水性聚胺酯,以拉伸測試作為應用測試。測試結果發現,除了平均模數有稍微增強外,在水性聚胺酯的機械性質上並無明顯提升。這似乎表示分散型蒙脫土並非以穩定狀態存在於水性聚胺酯溶液中。若想要提升摻混分散型蒙脫土之水性聚胺酯的機械性質,就必須從水性聚胺酯的合成配方上再進一步著手。zh_TW
dc.description.tableofcontents摘要 I Abstract II 目錄 III 圖目錄 V 表目錄 VII 第一章 緒論 1 第二章 水分散型多元異氰酸鹽的簡介 3 2-1 水性PU的外交聯作用 3 2-2 水分散型多元異氰酸鹽在水性PU接著劑的應用 7 2-3 水分散型多元異氰酸鹽的種類及合成 8 第三章 合成水分散型多元異氰酸鹽及水性PU的材料 12 3-1 水分散型多元異氰酸鹽 12 3-1-1 多元異氰酸鹽類 12 3-1-2 聚多元胺類 12 3-1-3 觸媒及觸媒抑制劑 13 3-1-4 水分散型多元異氰酸鹽商品 13 3-2 水性PU製作時的藥品 14 3-2-1 二異氰酸鹽類 14 3-2-2 聚二元醇 14 3-2-3 親水性短鏈二元醇 14 3-2-4 溶劑 14 3-2-5 中和劑 15 3-2-6 鏈延長劑 15 第四章 合成水分散型多元異氰酸鹽的原料及成品分析方法 16 4-1 異氰酸鹽NCO%值的分析 16 4-2 水份分析 20 4-3 紅外線光譜分析 21 4-4 分子量分析 22 4-5 粒徑分析 22 4-6 黏度分析 22 4-7 拉伸力測試 23 4-8 接著力測試及接著後耐熱測試 23 第五章 合成水分散型多元異氰酸鹽 25 5-1 一元胺親水基型多元異氰酸鹽的合成 25 5-2 二元胺親水基型多元異氰酸鹽的合成 28 5-3 一元胺/二元胺混合親水基型多元異氰酸鹽的合成 30 第六章 合成水性PU 41 6-1 合成方式 41 6-2 實驗配方及製程 41 6-3 基礎配方的合成實驗 43 6-4 摻混蒙脫土的合成實驗 45 第七章 應用結果與討論 48 7-1 水分散型多元異氰酸鹽接著力與耐熱接著測試 48 7-1-1 一元胺親水基型多元異氰酸鹽 49 7-1-2 二元胺親水基型多元異氰酸鹽 55 7-1-3 一元胺/二元胺混合親水基型多元異氰酸鹽 58 7-2 水性PU拉伸測試 61 第八章 結論 69 參考文獻 71zh_TW
dc.language.isoen_USzh_TW
dc.publisher化學工程學系zh_TW
dc.subjectisocyanateen_US
dc.subject異氰酸鹽zh_TW
dc.subjectwaterborne polyurethanesen_US
dc.subjectureaen_US
dc.subjectbiureten_US
dc.subjectMontmorilloniteen_US
dc.subject水性聚胺酯zh_TW
dc.subjectzh_TW
dc.subjectzh_TW
dc.subject縮二脲zh_TW
dc.subject蒙脫土zh_TW
dc.titleStudy on Urea-Biuret Based Water-dispersible Polyisocyanatesen_US
dc.title脲素與縮二脲水分散型多元異氰酸鹽之研究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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