臺灣博碩士論文加值系統

本研究以壓克力單體 BA (n-butyl acrylate)、i-BMA (isobutyl methacrylate)、AA (acrylic acid)、HEMA (2-hydroxyethyl methacrylate) 為主單體，以 BPO (benzoyl peroxide) 為起始劑，採溶劑型自由基聚合法合成壓克力系無規共聚物，用於改善 OPP (oriental polypropylene) 薄膜印刷適性。
將壓克力高分子塗佈於 OPP 膜，經 UV 印刷後以 3M #600 與 Nitton ＃31B 檢測油墨附著力，由表面張力儀量測塗膜表面的極性與非極性分佈，得到油墨附著性與塗層極性比例有關聯，但影響油墨附著力主要為塗層表面的黏著力與硬度，由 DSC 量測壓克力高分子塗層的 Tg 點，得到高 Tg 點的壓克力薄膜其黏著力較低、塗層越硬、與測試膠帶的吸引力較小越不易由 OPP 薄膜層脫落。
利用合成的共聚物做為 OPP膜的表面處理劑，經 UV 印刷後依 ISO規範進行百格測試，油墨附著力最好的塗層可達 ISO等級:1 等同ASTM 等級: 4B 。

We had successfully synthesized acrylic random copolymer of poly (n-butyl acrylate-co-isobutyl methacrylate-co-acrylic acid-co- 2-hydroxyethyl methacrylate) via solvent based free radical polymerization for improving the printability of OPP (oriental polypropylene) film.
After coating the acrylic polymer on OPP film and printing with UV curing ink, we test the printing anchorage by pressure sensitive tape of 3M # 600 and Nitton # 31B. By the surface energy test, we can determine that the printability was associated with the polarity ratio, but the impact of the anchorage is mainly dominated by the adhesion and hardness of the coating surface.
From the measurement of Tg point, the harder the coating and the less attractive of the polymer, the ink and the polymer has better anchorage to OPP film.
The synthetic copolymers are used as an OPP surface treatment agent and printed with UV curing ink, then tested by Cross-Cut Method according to ISO specifications. We have gotten the best printing anchorage up to ISO Grade: 1. (Equivalent to ASTM Grade: 4B.)

摘 要 i
ABSTRACT ii
誌 謝 iv
目 錄 v
表目錄 vii
圖目錄 viii
第一章 緒論 1
1.1 前言 1
1.2 研究目的 2
第二章 文獻回顧 3
2.1丙烯酸高分子合成[1-5] 3
2.1.1自由基聚合 3
2.1.2丙烯酸酯樹酯 5
2.2高分子材料 7
2.2.1影響玻璃轉移溫度Tg的自由體積理論[42-43] 8
2.2.2共聚體的Tg (Flory-Fox equation) [44-48] 12
2.2.3高分子交聯 12
2.3 PP與PE的表面改質[19-32] 13
2.4 UV印刷原理[6-14] 15
2.4.1感光性高分子 15
2.4.2光化學 15
2.4.3 UV光固化材料的基本組成[15] 17
2.5表面張力 17
2.5.1 接觸角[33-41] 17
2.5.2 接觸角的測定方法 18
2.5.3 影像分析法 18
2.5.4 表面能計算[16] 19
2.5.5 Owens-Wendt-Rabel-Kaelble (OWRK) Method[16] 22
第三章 實驗方法 23
3.1實驗藥品 23
3.2儀器介紹 24
3.2.1.實驗器材 24
3.2.2.測試儀器 26
3.3實驗製備與實驗方法 29
3.3.1丙烯酸共聚高分子合成方法 29
3.3.2丙烯酸共聚高分子黏度測試方法 29
3.3.3丙烯酸共聚高分子固形份測試方法 29
3.3.4高溫保持力 30
3.3.5表面處理劑配置與塗佈 30
3.3.6 T型剝離力測試方法 30
3.3.7 UV油墨印刷 30
3.3.8油墨牢度測試方法 31
3.3.8.1 簡易測試法 31
3.3.8.2百格測試方法 31
第四章 結果與討論 32
4.1樣品分析 32
4.1.1凝膠透析層析儀分析(GPC) 32
4.1.2熱示差掃描熱量分析儀分析(DSC) 34
4.1.3動態熱機械分析(DMA) 36
4.1.4高溫保持力測試結果 38
4.1.5丙烯酸共聚高分子表面能分析 38
4.1.5.1 接觸角測試值 38
4.1.5.2表面能極性值計算 39
4.1.6傅立葉轉換紅外線光譜儀分析(FT-IR) 40
4.2表面處理劑的性質對印刷性的影響 43
4.2.1表面處理劑油墨印刷性牢度測試結果 43
4.2.2丙烯酸共聚高分子架橋與印刷性的關係 47
4.2.3丙烯酸共聚高分子極性與印刷性的關係 49
4.2.4丙烯酸共聚高分子膜硬度與印刷牢度的關係 49
4.2.5 T型剝離力測試結果 49
第五章 結論 51
參考文獻 52

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