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系統識別號 U0002-2208200713152300
中文論文名稱 ABS/BN導熱高分子複材之製備與性質研究
英文論文名稱 The preparation and properties of ABS/BN thermally conductive polymer composites
校院名稱 淡江大學
系所名稱(中) 化學工程與材料工程學系碩士班
系所名稱(英) Department of Chemical and Materials Engineering
學年度 95
學期 2
出版年 96
研究生中文姓名 蕭翔仁
研究生英文姓名 Hsiang-jen Hsiao
學號 693361320
學位類別 碩士
語文別 中文
口試日期 2007-07-31
論文頁數 98頁
口試委員 指導教授-林國庚
委員-賴森茂
委員-董崇民
中文關鍵字 丙烯腈-丁二烯-苯乙烯共聚物  氮化硼  熔融混練法  導熱度  導熱高分子  偶合劑 
英文關鍵字 Acrylon nitrile-Butadiene-Styrene copolymer  Boron Nitride  melt blending  thermal conductivity  thermal conductive polymer composites  coupling agent 
學科別分類
中文摘要 本研究目的於提高導熱高分子複材之導熱性,並且與成品之實用性間研究一最佳比例配方。
吾選擇ABS為基材,高導熱性的六方氮化硼(h-BN)為導熱添加劑,佐以偶合劑,以雙螺桿熔融混練法混練,以射出型式製備試片,測量其導熱度、流變性質、機械性質等複材性質。
ABS/BN複材之導熱度隨著BN含量增加而增加,尤其BN含量大於重量百分比20%之後導熱度大幅度提升,為添加量足夠形成導熱網路所致,添加偶合劑對於導熱度亦具影響,改善介面性質效果較佳之偶合劑提升導熱度之效果亦較佳;利用流變儀測試材料熔融狀態黏彈性值以及穩態減切黏度,複材之儲存模數以及黏度皆會隨著添加BN的量而增加;複材之衝擊強度,隨著BN含量增加衝擊強度大幅度下降,添加偶合劑則可提升其耐衝擊強度;拉伸模數與彎曲模數隨BN含量增加而升高,加入偶合劑則使複材之韌性提升;SEM則可以觀察BN在基材之中的分散情形,得知材料經添加偶合劑後,介面性質明顯改善,並以此證明材料機械性質之變化趨勢。
英文摘要 The goal of this study is to enhance thermal conductivity of polymer composite, and find the optimal polymer matrix/filler composition between product’s thermal conductivity and practicability. Thermally conductive ABS/BN composites were prepared by melt blending with twin screw extruder. All specimens were prepared by injection molding and thermal conductivity、rheological properties and mechanical properties were investigated.
Thermal conductivity of ABS/BN increased with BN content increased, an apparent increase of thermal conductivity when BN content is more than 20 wt. %, it’s believed that the BN content is sufficient to form conductive net-work. Thermal conductivity of ABS/BN composite treated with coupling agent is higher than un-treated one since the interfacial properties of composites treated with coupling agent were better.
Rheological properties were tested by plate to plate and capillary rheometer. Storage modulus and viscosity of composites was increased with BN content increased. Impact strength of composite decreased sharply with BN content increased, but a slightly improvement observed on composites treated with coupling agent. Tensile and flexural modulus increased with BN content increased. Composites treated with coupling agent were tougher than un-treated ones. Morphology of ABS/BN composites were investigated by SEM. The dispersion conditions of filler in polymer matrix with or without coupling agent offered direct evidence to the variations of composites mechanical properties.
論文目次 總目錄
中文摘要 Ⅰ
英文摘要 Ⅱ
目錄 Ⅲ
圖目錄 Ⅶ
表目錄 Ⅹ
目錄

第一章 緒論.............................................................................................1
1-1 前言..……………………..……………………………………………….1
1-2 導熱高分子..........…………..……………………………………………2
1-2-1 固體導熱機制.…………………………….………………………….2
1-2-2 導熱添加劑..………………………………………………………….3
1-3 研究動機………………………………………………………………….6
第二章 文獻回顧及研究背景..................................................................16
2-1 導熱模型…………………………………………………………………16
2-2 導熱高分子………………………………………………………………20
2-2-1 熱固型導熱高分子…………………………..………………………20
2-2-2 熱塑型導熱高分子……………………………..……………………22
2-3 偶合劑……………………………………………………………………25
2-3-1 偶合機制…………………………………………..…………………26
2-3-2 偶合劑的使用法…………………………………………………….29
2-4 高分子熔融流變行為……………………………………………………32
2-4-1 穩態剪切黏度……………………………………….........…………32
2-4-2 動態流變行為……………………………………….........…………34
2-4-3 線性黏彈性質……………………………………….........…………34
第三章 實驗部分....................................................................................43
3-1 實驗材料………………………………………………………………...43
3-2 實驗儀器………………………………………………………………...44
3-3 實驗與分析步驟........…………………………………………………...46
3-3-1 ABS/BN複材製作程序……….…..............................…………….46
3-3-2 ABS/BN/偶合劑複材製作程序……………...........................…….47
3-3-3 材料測試與分析……………………………………......…………...48
第四章 結果與討論.................................................................................57
4-1 拉伸試驗………………………………………………………………...57
4-2 彎曲實驗………………………………………………………………...69
4-3 耐衝擊實驗……………………..……………………………………….72
4-4導熱度測試……….………………………………………………………76
4-5 形態學研究………..……………………………………………...……..79
4-6 流變性質探討…………………………………………………….……..87
4-6-1 動態流變性質…………………………………………………..……87
4-6-2 穩態剪切黏度……………………………………………………..…88
第五章 結論...........................................................................................93
第六章 參考文獻…………………………………………………………….94

圖目錄
圖1-1 各種散熱裝置的應用圖...................................................................8
圖1-2 氮化硼與石墨分子層之構造圖..………………………………………9
圖1-3 氮化硼SEM圖………………………………………........................10
圖1-4 BN與其他物質之導熱度比較………..……………………………….11
圖2-1 簡單設定之導熱模型....................................................................36
圖2-2 各種預測複合材料之有效導熱度的模型比較圖...........................37
圖2-3 矽烷偶合劑偶合機制圖(1).......................................................38
圖2-4 矽烷偶合劑偶合機制圖(2).......................................................39
圖2-5 鈦系偶合劑偶合機制圖…………………………........................….40
圖2-6 添加劑分散在基材內以鈦系偶合劑改質機制圖……..…………….40
圖2-7 偶合劑使用方法圖………...............................…………………….41
圖3-1 ABS/BN複材混練、試片製作流程圖...........………………………....51
圖3-2 雙螺桿機台混練溫度速度簡圖……………………….............…….52
圖3-3 ABS/BN/偶合劑複材混練、試片製作流程圖....……………………..53
圖3-4 材料各種性質測試圖.............……………………………………….54
圖4-1 材料應力-應變圖…….……………………………………………….57
圖4-2 ABS/BN複材之楊氏模數圖………………………………………......64
圖4-3 ABS/BN複材之抗張強度圖………………………………….............64
圖4-4 ABS/BN複材之斷裂點延伸率圖....................................................65
圖4-5 BN含量5%時,添加不同比例之偶合劑複材之楊氏模數圖……….65
圖4-6 BN含量5%時,添加不同比例之偶合劑複材拉伸實驗圖.................66
圖4-7 BN含量5%時,添加不同比例之偶合劑複材拉伸實驗圖.................66
圖4-8 BN含量10%時,添加不同比例之偶合劑複材之楊氏模數圖............67
圖4-9 BN含量10%時,添加不同比例之偶合劑複材拉伸實驗圖...............68
圖4-10 BN含量10%時,添加不同比例之偶合劑複材拉伸實驗圖.............68
圖4-11 ABS/BN複材之抗折模數圖..........................................................71
圖4-12 BN含量10%時,添加不同比例之偶合劑複材之抗折模數圖..........71
圖4-13 ABS/BN複材之不同含量BN耐衝擊強度圖………………………..74
圖4-14 ABS/BN/偶合劑複材之不同含量偶合劑耐衝擊強度圖…………...74
圖4-15 ABS/BN複材導熱度圖.................................................................78
圖4-16 ABS/BN/偶合劑複材導熱度圖.....................................................78
圖4-17 ABS淬斷面SEM圖………………………………….......................81
圖4-18 氮化硼粉體SEM圖.....................................................................81
圖4-19 ABS/BN 5%淬斷面SEM圖……………………………..................82
圖4-20 ABS/BN 10%淬斷面SEM圖........................................................82
圖4-21 ABS/BN 30%淬斷面SEM圖........................................................83
圖4-22 ABS/BN 50%淬斷面SEM圖........................................................83
圖4-23 ABS/BN 10%/LICA 38 1phr淬斷面SEM圖..................................84
圖4-24 ABS/BN 10%/NZ 37 1phr淬斷面SEM圖.....................................84
圖4-25 ABS/BN 10%/LICA 38 1.5phr淬斷面SEM圖......................……85
圖4-26 ABS/BN 10%/NZ 37 1.5phr淬斷面SEM圖...........................……85
圖4-27 ABS/BN 30%/LICA 38 1.5phr淬斷面SEM圖........................……86
圖4-28 ABS/BN 30%/NZ 37 1.5phr淬斷面SEM圖...........................……86
圖4-29 不同含量之BN之振幅掃描圖…………………………………….90
圖4-30 BN含量為30%,添加兩種偶合劑之振幅掃描圖……………..…….90
圖4-31 不同含量之BN之頻率掃描圖……………………………...……….91
圖4-32 不同氮化硼含量之剪切速率對黏度掃描圖……………………….92
圖4-33 不同偶合劑含量之剪切速率對黏度掃描圖……………………….92

表目錄
表1-1 有機材料無機材料二者物性的比較…...........................................12
表1-2 導熱添加劑及高分子材料之導熱度...............................................13
表1-3 六方氮化硼之重要性質.................................................................14
表1-4 奇美高流動級 ABS物性表…………….…………………………….15
表2-1 矽烷與鈦酸酯偶合劑適用的添加劑...............................................42
表3-1 ABS/BN複材混練配方表……………………………............……….55
表3-2 ABS/BN 5%/偶合劑混練配方表...………………………...…………55
表3-3 ABS/BN 10%/偶合劑混練配方表...……………………........………56
表3-4 ABS/BN 30%/偶合劑混練配方表...……………………........………56
表4-1 ABS/BN複材楊氏模數計算結果....................................................60
表4-2 各比例經由計算後得之楊氏模數………………………………….61
表4-3 各比例經由計算後得之楊氏模數………………………………….61
表4-4 各比例經由計算後得之楊氏模數………………………………….61
表4-5 各比例經由計算後得之楊氏模數………………………………….61
表4-6 ABS/BN複材之拉伸實驗數據……………………………………….62
表4-7 ABS/BN 5%/偶合劑複材之拉伸實驗數據………………………….62
表4-8 ABS/BN 10%/偶合劑複材之拉伸實驗數據……………………….63
表4-9 ABS/BN 30%/偶合劑複材之拉伸實驗數據……………………….63
表4-10 ABS/BN複材之抗折模數數據表.…………………………………...70
表4-11 ABS/BN 5%/偶合劑複材之抗折模數數據表.……………………...70
表4-12 ABS/BN 10%/偶合劑複材之抗折模數數據表.…………………....70
表4-13 ABS/BN 30%/偶合劑複材之抗折模數數據表.…………………....70
表4-14 ABS/BN複材耐衝擊性數據……………………………………..…..73
表4-15 ABS/BN 5%/偶合劑複材耐衝擊性數據……………………………73
表4-16 ABS/BN 10%/偶合劑複材耐衝擊性數據…………………………..73
表4-17 ABS/BN 30%/偶合劑複材耐衝擊性數據…………………………..73
表4-18 ABS/BN/偶合劑複材導熱度測試數據……………………...………77
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