矽酮膠與塑膠材料接著強度的探討

Investigation of Adhesion between Silicone Adhesives and Plastic Materials

黃瑋柔(Wei-Jou Huang)

指導教授 ： 王賢達

國立臺北科技大學/工程學院/有機高分子研究所/碩士(2014年)

https://doi.org/10.6841/NTUT.2014.00689

摘要

本研究探討矽酮膠(接著劑)對塑膠材料的接著特性，使用兩種不同塑膠材料作為試片，分別厚度約0.05 mm的PET薄膜和厚度約0.7 mm的PP薄板，經不同電暈處理PET薄膜和PP薄板，接著塗佈相同厚度3種不同的矽酮膠作為接著劑分別為A、B和C，然後樣品放置於室溫及環境相對溼度50 ~ 60%之下5分鐘、10分鐘、20分鐘、30分鐘後，相同實驗條件的PET薄膜/接著劑和PP薄板/接著劑相互貼合施壓約10 kg力，並且放置24小時再測試PET薄膜/接著劑和PP薄板/接著劑的剝離強度。接著劑A的pH值約為10，B的pH值約為5，C的pH值約為3。實驗結果顯現3種矽酮膠的接著劑之中，接著劑A對經電暈處理PET薄膜和PP薄板具有最佳接著性，而接著劑C則是最差接著性；對未經電暈處理PP薄板3種矽酮膠，其剝離強度接近零，也就是毫無接著性。高剝離強度的樣品，其剝離界面發生在接著劑之間；而低剝離強度的樣品，其剝離界面發生於接著劑與塑膠材料的界面之間。

關鍵字

矽酮膠 ； 電暈 ； 剝離強度

並列摘要

This study examines the characteristics of adhesion for silicone adhesives to plastics. Two different types of plastics are used as test samples. They are polyethylene terephthalate (PET) film with a thickness of 0.05 mm and polypropylene (PP) sheet with a thickness of 0.7 mm. After corona discharge treatment (CDT) for PET films and PP sheets, those films and sheets are immediately coated with three different silicone adhesives, namely A, B, and C. The coated samples are placed by 5, 10, 20, and 30 minutes in the environment which is room temperature and relative humidity of 50 ~ 60%. The samples of the same plastics and adhesives are pressed together with 10 kg force and by 24 hrs in the previous environment. Those samples are used for the test of peel strength after 24 hrs. The pH values for silicone adhesives A, B, and C are 10, 5, and 3, respectively.
Experimental results indicate that among three silicone adhesives, adhesive A shows the best of adhesion for PET film and PP sheet treated by corona and adhesive C gives the worst of adhesion for PET film and PP sheet. The peel strength of PP sheets without CDT coated the three silicone adhesives is near zero. That means very poor adhesion for the three silicone adhesives to PP sheets without CDT. When a sample has a high peel strength, the place of peel for the sample normally occurs in adhesives. However, when a sample shows a low peel strength, a poor adhesion always happen at the interface between plastics and adhesives.

並列關鍵字

Silicon adhesives ； Corona ； Peel strength

參考文獻

[1] 吳文政編著，接著劑的原理，科學新天地，台北：龍騰文化事業股份有限公司，2006，第46-51頁。

[37] 王潔瑩，以氨氣及乙炔/氨氣電漿改質法提昇聚四氟乙烯膜面親水性之研究，碩士論文，中原大學化學工程學系，桃園，2004。

[6] 林志慧，兩液型壓克力結構膠之儲存安定性的探討，碩士論文，台北科技大學有機高分子研究所，台北，2009。

[17] J.J. Brikerman, “Experiments on peeling”, Journal of Applied Polymer Science, Volume. 11, Issue. 5, 1959, pp. 216-224.

[18] D. M. Brewis and D. Briggs, “Adhesion to polyethylene and polypropylene”, Polymer, Volume 22, Issue 1, 1981, pp. 7-16.