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研究生:杜育昕
研究生(外文):Yu-Hsin Tu
論文名稱:聚氯乙烯接枝共聚物摻混聚胺酯之物理性質研究
論文名稱(外文):Physical Properties of Poly(vinyl chloride) Graft Copolymer and Polyurethane Blends
指導教授:顏銀昱王賢達王賢達引用關係
指導教授(外文):Ynh-Yue YenHsin-Ta Wang
口試委員:郭文正
口試委員(外文):Wen-Jeng Guo
口試日期:2016-06-24
學位類別:碩士
校院名稱:國立臺北科技大學
系所名稱:有機高分子研究所
學門:工程學門
學類:化學工程學類
論文種類:學術論文
畢業學年度:104
語文別:中文
中文關鍵詞:熱重分析動態機械分析共聚物聚胺酯聚氯乙烯
外文關鍵詞:TGADMACopolymerPUPVC
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本研究聚焦在新型聚氯乙烯接枝共聚物(PVC-C1800)摻混熱塑性聚胺酯之物理性質。以聚氯乙烯接枝聚氨酯共聚物取代一般聚氯乙烯,再混合不同比例的熱塑性聚胺酯,以達到較佳的機械性質,並研究其物理性能。
聚氯乙烯聚胺酯共聚物在常溫及低溫下較一般聚氯乙烯有更好的機械物性,不需要添加低溫塑化劑,就能夠在低溫的環境下仍然保持高抗衝擊強度。其具備更優越的材料混合加工特性及機械性質,相較於均勻氯乙烯單體所聚合的聚氯乙烯有更多的用途。本研究以台塑C-1800聚氯乙烯/聚胺酯共聚物混合不同比例的熱塑性聚胺酯進行多項分析及測試,藉以提升材料低溫機械性質。C-1800是以台塑S-80為基礎研發而成的複合材料,故對照組以台塑S80聚氯乙烯混合不同比例的熱塑性聚胺酯,配方使用固定量之30 phr的對苯二甲酸二辛酯塑化劑(DOTP)及4 phr的硬酯酸鈣鋅鹽型熱安定劑,進行交叉比對。
由實驗得到以下結論。TPU與PVC-S80及PVC-C1800皆有良好的相容性,並且TPU的添加有效降低材料Tg點、儲存模數(E’)及100%延伸率模數,且PVC-C1800複合材料較PVC-S80複合材料有較佳的柔軟度。在抗張強力分析中,PVC-S80複合材料較PVC-C1800擁有較佳的斷裂延伸率及100%延伸率模數。低溫衝擊數據證明了TPU的添加提升了兩種PVC複合材料的低溫抗衝擊性。
Poly(vinyl chloride) (PVC-S80) or polyurethane-grafted poly(vinyl chloride) (PVC-C1800) was blended with thermalplastic polyurethane (TPU), diethylhexyl terephthalate plasticizer and calcium (and zinc) stearate heat stabilizer by a rolling mill at 190°C for 10 min. After thoroughly mixing the composite speciments(PVC-S80/TPU or PVC-C1800/TPU) were obtained by pressing blends at 175°C for 10 min under a pressure of 1200 psi.
Thermogravimetric analysis (TGA) results showed that the polyurethane would assist the degradation of PVC. Both differential scanning calorimetry (DSC) and differential mechanical analyzer (DMA) data exhibited that the glass transition temperature (Tg) of the composite decreased with increase of TPU in either PVC-S80/TPU or PVC-C1800/TPU. The PVC-S80/TPU gave a higher value of Tg to the corresponding PVC-C1800/TPU indicating that the PVC-S80/TPU remained much of the characteristic of PVC.
The values of the tensile strength, modulus at 100% elongation and ultimate elongation at break for PVC-C1800 composite (C1) which is composed polyurethane –grafted PVC were higher than those of PVC-C1800/TPU samples. However, some of PVC-S80/TPU samples showed better above properties than the PVC-S80 composite (S1) which consists of PVC. This implies that the addition of TPU weakens the tensile properties of PVC-C1800 composites.
The low temperature fracture properties of both PVC-S80 and PVC-C1800 composite samples were about the same and the introduction of TPU into both composites improved the toughness of the materials.
摘 要 i
ABSTRACT iii
致 謝 v
目 錄 vi
表目錄 ix
圖目錄 xi
第一章 緒論 1
1.1 前言 1
1.2 研究動機與目的 2
1.3 研究方法 3
第二章 相關原理與文獻回顧 4
2.1 聚氯乙烯介紹 4
2.1.1 聚氯乙烯發展歷史 4
2.1.2 聚氯乙烯結構與性質 4
2.1.3氯乙烯聚合法 5
2.2 塑化劑介紹 10
2.2.1塑化劑簡介 10
2.2.2 塑化劑功能性 10
2.2.3 塑化劑種類 12
2.2.4 DOTP介紹 13
2.2.5 塑化理論 15
2.3複合材料混摻 18
2.3.1 TPU介紹 18
2.3.2 PVC/TPU共混材料 18
2.4 文獻回顧 19
2.4.1 PVC/TPU材料低溫性質 19
2.4.2 PVC/TPU材料機械特性 20
2.4.3 PVC/TPU材料之熱穩定性 22
2.4.4 TPU之塑化性能 23
2.4.5 PVC/TPU之Tg趨勢 25
第三章 實驗部分 26
3.1 實驗藥品 26
3.2 實驗儀器 29
3.3 聚氯乙烯複合材料 31
3.3.1實驗流程 31
3.3.2 PVC/PU材料製備 32
3.3.3混摻配方 33
3.4測試條件 35
3.4.1傅立葉轉換紅外線光譜儀 35
3.4.2熱重量分析儀 35
3.4.3微分示差掃描卡計 36
3.4.4動態機械分析儀 36
3.4.5萬用材料測試機 37
3.4.6低溫脆化測試機 38
第四章 結果與討論 40
4.1複合材料之FT-IR分析 40
4.2複合材料之熱分析 47
4.2.1 TGA分析 47
4.2.2 DSC分析 52
4.2.3 DMA分析 54
4.3複合材料之機械分析 59
4.3.1 抗張強力分析 59
4.3.2 低溫脆化分析 61
第五章 結論 62
參考文獻 63
附錄A 67
附錄B 76
附錄C 85
附錄D 93
附錄E 101
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