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首页> 外文期刊>Journal of Applied Polymer Science >Water-based poly(2-ethylhexyl acrylate-itaconic acid) removable adhesives with frost resistance for digital inkjet printing
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Water-based poly(2-ethylhexyl acrylate-itaconic acid) removable adhesives with frost resistance for digital inkjet printing

机译：水性聚（2-乙基己基丙烯酸酯 - 衣康酸）可去除粘合剂，具有霜冻的数字喷墨印刷

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摘要

Adhesives are nonmetallic materials used to bond each layer in many applications for its flexibility. For digital inkjet printing, the requirements of adhesives performance are demanding as they must be able to adhere well to adherend, be removable without leaving adhesive residue, or even causing any damage. Water-based polyacrylates have been widely used for backing adhesive layer in application of digital inkjet printing, due to their various advantages. While the application has been limited on account of the weak frost resistance of common polyacrylates, which could not be used directly under low temperature storage. To improve the weak frost resistance, water-based poly(2-ethylhexyl acrylate-itaconic acid) was synthesized. Itaconic acid (ITA) could be greatly beneficial to improve the frost resistance. The polyacrylates could still be used directly, even after being frozen below at -18 degrees C for 16 hr. The adhesion properties of polyacrylates could also be enhanced by moderate ITA. The results show that the optimal amount of ITA was 2 mass%. The overall properties of the resulting polyacrylates with the 180 degrees peel strength of 2.73 N/25 mm, the tack of 23 #, and the shear holding power of more than 24 hr are suitable for practical applications on removable adhesives for digital inkjet printing.
机译：粘合剂是一种非金属材料，由于其灵活性，在许多应用中用于粘合每一层。对于数字喷墨打印，对粘合剂性能的要求很高，因为它们必须能够很好地粘附在被粘物上，能够在不留下粘合剂残留物的情况下移除，甚至不会造成任何损坏。水基聚丙烯酸酯由于其各种优点，在数码喷墨打印应用中被广泛用作底胶层。但由于普通聚丙烯酸酯抗冻性差，不能在低温储存条件下直接使用，其应用受到限制。为了提高抗冻性，合成了水性聚丙烯酸-2-乙基己酯-衣康酸。衣康酸（ITA）对提高抗冻性非常有益。聚丙烯酸酯仍然可以直接使用，即使在-18摄氏度以下冷冻16小时。适量的ITA也能提高聚丙烯酸酯的粘接性能。结果表明，ITA的最佳用量为2质量%。所得聚丙烯酸酯的180度剥离强度为2.73 N/25 mm，粘性为23#，剪切保持力超过24小时，其整体性能适用于数字喷墨打印用可拆卸粘合剂的实际应用。

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