丙烯酸系感壓膠用於光學薄膜配方 及其耐候表現之研究

The Recipe and Research of Durability Performance of Acrylic Pressure Sensitive Adhesive in the Optical thin film

劉慶良(Ching-Lieng Liu)

指導教授 ： 段葉芳

國立臺北科技大學/工程學院/化學工程研究所/碩士(2009年)

https://doi.org/10.6841/NTUT.2009.00051

摘要

本研究是使用一種包含丙烯酸丁酯(BA)與丙烯酸甲酯(MA)等單體所合成的丙烯酸系感壓膠，並添加環氧型與多異氰酸酯型的硬化劑進行交聯。主要探討不同的添加量對感壓膠使用在偏光片上時的耐久性、內聚力、黏著力和初使黏著力的表現。此外添加不同官能基的矽烷偶合劑 (A-174、A-187、A-1100)，探討其對感壓膠黏著力的影響。本研究同時使用了熱重分析儀以及熱機械分析儀來輔助分析不同交聯程度下感壓膠的裂解和蠕變性質。
實驗結果顯示，太高的交聯度將使偏光片易剝離，反之則會產生膠體發泡，恰當的硬化劑混合比率將得到優異的耐久性。添加硬化劑 (N,N,N,N-tetraglycidyl -m- xylene diamine) 對內聚力有較佳的提升效果；硬化劑 (Trimethylol propane tri- toluene diisocyanate) 則對玻璃有較好的密著性。使用的三種偶合劑中以A-174 (γ-甲基丙烯醯氧基丙基三甲基矽烷)為較佳。添加後不但有助於黏著力的提升且可維持感壓膠性質的不變。

關鍵字

感壓膠 ； 硬化劑 ； 偶合劑 ； 耐久性

並列摘要

The synthesis of this study is to use a kind of acrylic Pressure Sensitive Adhesive (PSA), which is by using Butyl Acrylate (BA) and Methyl Acrylate (MA) as monomers, and the cross-link reaction of acrylic PSA is added epoxy and isocyanate hardener. It is used to investigate the effects, such as the durability, cohesion, peeling force and tack performances of the polarization film while adding different hardener ratio. Besides, we investigate the influences of the peeling force of the PSA while adding the silane coupling agent of three kinds of different organic functional groups (A-174,A-187,A-1100).The properties of the degradation and creep behaviors with the variant cross-link density are analyzed by using TGA and TMA.

The experimental results show which is higher cross-link density will result in peeling of polarization film; on the other hand, the bubble is produced while the cross-link density is lower. That is, the proper hardener ratio is set, the excellent durability is obtained. For adding the hardener “N,N,N,N-tetraglycidyl-m-xylene diamine” within the PSA is good for cohesion; for adding the hardener “Trimethylol propane tritoluene diisocyanate” within the glass will raise the adhesion. While adding the A-174 (Gamma-Methcryloxypropyl trimethoxy silane) within PSA, it not only increases the peeling force but also keeps the property of PSA is invariant. It can be seen that the A-174 is the best one among these.

並列關鍵字

PSA ； hardener ； coupling agent ； durability

參考文獻

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