氬氣電漿表面改質對編織超高分子量聚乙烯纖維布剝離強度影響之研究

Effects of Surface Modification by Argon Plasma on Peel Strength of Woven Type Ultra High Molecular Weight Polyethylene

林聖凱(Sheng-kai Lin)

指導教授 ： 黃繼遠

大同大學/工程學院/材料工程學系所/碩士(2009年)

摘要

本研究探討氬氣電漿表面改質對編織超高分子量聚乙烯 (UHMWPE) 纖維布之剝離強度影響之研究。編織超高分子量聚乙烯纖維布經過電漿處理後，表面產生自由基 (Free Radicals)，自由基經過曝氣轉變為過氧化物 (Peroxide) ，過氧化物濃度以 1,1-dipphenyl-2-picrylhydrazyl (DPPH∙) 方法計算。超高分子量聚乙烯纖維布表面形態與可濕性各別使用電子顯微鏡 (SEM) 和靜態接觸角(Static Contact Angle)分析。由PR-IR光譜鑑別膠黏劑的特徵官能基和其對應變化。超高分子量聚乙烯纖維布黏著強度由T型剝離實驗方法量測，實驗結果發現，出現高T型剝離強度的最佳化電漿處理條件為40W 4min，自由基量為1.27×10-9 mol/mm2；電漿處理的超高分子量聚乙烯纖維布，具有親水性(Hydrophilic)並且誘發錨定(Anchors)效應，膠黏劑3M 1099具有丁二烯(butadiene)，此官能基與電漿處理超高分子量聚乙烯纖維表面的自由基反應，化學鍵結顯著增加電漿處理超高分子量聚乙烯纖維與膠黏劑的黏著強度。由SEM照片可知，破裂表面出現很多細纖維，T型剝離實驗過程中，伴隨細纖維剝離可提高剝離強度。經過電漿表面改質後，超高分子量聚乙烯纖維布與膠黏劑3M 4475的剝離強度由1.17 增加至 2.26 kgf/in，超高分子量聚乙烯纖維布與膠黏劑3M 1099的剝離強度由2.58 增加至 4.39 kgf/in。

關鍵字

電漿 ； 剝離 ； 超高分子量聚乙烯 ； 自由基

並列摘要

In the investigation, effects of surface modification by argon plasma on peel strength of woven type ultra high molecular weight polyethylene (UHMWPE) were studied. After plasma treated, the free radicals were generated on woven type UHMWPE surface and then converted to peroxide offer exposed to air. The concentration of peroxides were estimated by the 1,1-dipphenyl-2-picrylhydrazyl (DPPH) method. The surface morphology and the wettability of woven type UHMWPE were analyzed by scanning electron microscope (SEM) and static contact angle measurement, respectively. Identify the functional groups of the adhesive and their relative change was proved by IR to match PR. The adhesion strength of woven type UHMWPE was measured by T-peel testing method. From the results, the optimum free radical content for offering high T-peel strength was 1.27×10-9 mol/mm2 at 40 W plasma-treated for 4 min. The plasma treated woven type UHMWPE possessed the hydrophilic property and introduced the number of anchors. The adhesive 3M 1099 possessed butadiene. As it reacted with the free radicals that formed on the surface of PUHMWPE fiber, the chemical bonding significantly increased in the adhesion strength between PUHMWPE fiber and adhesive. SEM photographs shows that the surface of possessed many fibrils. This fibrils peel mechanism can offer peel strength as T-peel testing. As Surface modification by plasma treatment, the peel strength of UHMWPE fiber with adhesive 3M 4475 was increased from 1.17 to 2.26 kgf/in and the peel strength of UHMWPE fiber with adhesive 3M 1099 was increased from 2.58 to 4.39 kgf/in, respectively.

並列關鍵字

UHMWPE ； Peel ； Free Radicals ； Plasma

參考文獻

[1] Y. Cohen, D. M. Rein & L. Vaykhansky, Comp. Sci. ＆ Technol., 57, 1149 (1997).

[3] T. Ogawa, H. Mukai, S. Osawa, J. Appl. Polym. Sci., 79, 1162 (2001).

[4] I. Ahmad1 and R. J. Young, Malaysian Journal of Chemistry, 6, 91 (2004).

[5] B. A. Cheeseman, T. A. Bogetti, Composite Structures, 61, 161 (2003).

[6] J. T. Yeh, S. C. Lin, C. W. Tu, K. H. Hsie, F. C. Chang, J. Mater. Sci., 43, 4892 (2008).