臺灣博碩士論文加值系統

本研究因玻璃纖維尼龍66(GFNY66)廣泛用於汽車水箱材料使用，但水箱抗凍劑為乙二醇（EG）水溶液，會使GFNY66發生降解，而導致機械性能大大降低，造成水箱的破損。
因此本實驗使用雙螺桿押出機共混加入不同比例尼龍6,12並固定玻璃纖維的含量，製成5種不同比例PA66/612+GF，利用其PA612具有較優異的的耐化學性、吸水率低、尺寸穩定性優於短鏈尼龍樹脂（例如PA6，PA66）、優異的耐衝擊性和柔韌性等特性，結合短鍊尼龍與長鍊尼龍的特點，降低因耐乙二醇水溶液引起的醇解。
從NY66在80°C的EG水溶液中浸入不同時間間隔的物性實驗、DSC、ATR-IR光譜來探討其五種樣品的差異性。

Glass fiber nylon 66 (GFNY66) is widely used in automotive water tank materials, but the antifreeze agent of water tank is ethylene glycol (EG) aqueous solution, which can cause the degradation of GFNY66, resulting in a significant reduction in mechanical properties and induce damage to the water tank.
Therefore, this study uses a twin-screw extruder to blend different proportions of nylon 6,12 with constant content of glass fiber to make 5 different proportions of nylon 66/612/GF. The use of nylon 612 in the preparation of water tank allow it to own excellent chemical resistance and water absorption. Low, dimensional stability is usually better than short-chain nylon resins (such as PA6, PA66) , and with excellent impact resistance and flexibility, combining the characteristics of short-chain nylon with long-chain nylon, it can effectively retard the hydrolysis of water tank in the alcohol solution.
To explore the difference of the mentioned five types of samples from NY66, they are dipped in EG aqueous solution in different time interval at 80°C and other physical properties were characterized by, DSC, ATR-IR.

目錄
摘要 i
Abstract ii
致謝 iv
目錄 v
表目錄 (Table) vii
圖目錄 (Figure) ix
第一章 緒論 1
1-1前言 1
1-2 尼龍(聚醯胺族)簡介 1
1-3 研究目的 3
第二章 文獻回顧 5
2-1 尼龍性質與特性 5
2-1-1 尼龍66簡介 5
2-1-2 尼龍612簡介 5
2-1-3 尼龍66的改性 6
2-1-3-1 改性研究 6
2-1-3-2 共聚改性 7
2-1-3-3 共混改性 8
2-1-3-4 填充改性 9
2-2 玻璃纖維 10
2-3 水解(醇解作用) 11
第三章 實驗 14
3-1 實驗流程圖 14
3-2 合成材料 15
3-3 實驗裝置圖 16
3-4 儀器設備 17
3-5實驗步驟 18
3-5-1 尼龍66/612玻璃纖維複合材料的製備 19
3-5-2 射出機步驟 19
3-5-3 實驗樣品命名 19
3-5-4 FTIR(ATR) 20
3-5-5 DSC 20
3-5-6 萬能拉伸試驗機 20
3-5-7 衝擊試驗機 20
3-5-8 熱變形溫度儀 20
第四章 結果與討論 21
4-1 FTIR(ATR) 21
4-2以DSC熔點與結晶溫度探討均勻度 21
4-3 熱變形溫度、衝擊強度測試(IZOD IMPACT STRENGTH TEST)、抗張強度
測試(TENSILE STRENGTH)探討 23
4-4 浸泡80°C乙二醇水溶液(50 %)後探討 24
4-4-1 不同比例尼龍66/612吸水率差異 24
4-4-2 FTIR(ATR) 24
4-3-2 DSC熔點與結晶溫度探討 24
4-4-4 熱變形溫度、衝擊強度測試(Izod impact strength test)、抗張
強度測試(Tensile strength)探討 25
第五章 結論 49
第六章 參考文獻 51

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