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Non-yellowish and heat-resistant adhesive for a transparent heat sinking film
Journal of Industrial and Engineering Chemistry ( IF 6.1 ) Pub Date : 2021-07-30 , DOI: 10.1016/j.jiec.2021.07.036
Hyewon Ryu 1 , Hyesu Choi 1 , Joo hwan Shin 1 , Healeen Hong 1 , Byeonghak Park 1 , Eun Gyeong Lee 1 , Tae-il Kim 1
Affiliation  

The development of optical communication techniques and optical components is rapidly progressing in the era of high-speed information communication. In this area, many studies have been carried out to investigate highly transparent optical adhesives. UV-curing adhesives, which rely on irradiating ultraviolet rays, are a major candidate for use in this field. However, they suffer from thermal degradation and discoloration due to long-term UV irradiation. Thus, in this study, we present a transparent adhesive by replacing the photo-initiator to improve the yellowish discoloration phenomenon, which affects aging and low surface quality. By replacing 2-benzyl-2-(dimethylamino)-4′-mopholinobutyrophenone, which causes yellow changes due to a red-shift and donation electron groups, with α -hydroxycyclohexylphenyl ketone, this approach was successful to improve the yellowish discoloration problem. By taking advantage of the excellent thermal and mechanical stabilities in addition to resistance to long-term UV irradiation, a transparent heat dissipation film formed by grid-patterned boron nitride nanosheets was manufactured by a transfer printing method. The film can be utilized as a major component in electrical and optical films which require thermal resistivity and optical transparency.



中文翻译:

透明散热膜用不泛黄耐热胶粘剂

光通信技术和光器件的发展在高速信息通信时代飞速发展。在这方面,已经进行了许多研究来研究高度透明的光学粘合剂。依靠照射紫外线的紫外线固化粘合剂是该领域的主要候选产品。然而,由于长期紫外线照射,它们会遭受热降解和变色。因此,在本研究中,我们提出了一种透明粘合剂,通过替代光引发剂来改善泛黄现象,这种现象会影响老化和低表面质量。通过用α-羟基环己基苯基酮代替2-苄基-2-(二甲氨基)-4'-mopholinobutyrophenone,由于红移和供体电子基团引起黄色变化,这种方法成功地改善了泛黄变色问题。利用其优异的热稳定性和机械稳定性以及耐长期紫外线照射,通过转移印刷方法制造了由网格图案氮化硼纳米片形成的透明散热膜。该薄膜可用作需要耐热性和光学透明性的电气和光学薄膜的主要成分。

更新日期:2021-09-04
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