화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.83, 90-99, March, 2020
DOI10.1016/j.jiec.2019.11.017  Export Citation
Mutual intercropping-inspired co-silanization to graft well-oriented organosilane as adhesion promotion nanolayer for flexible conductors
Yi-Hsuan Chen1, Yi-Hsiang Lai1, Ping-Heng Wu1, Li-Syuan Chen1, Yung-Sen Lin2, and Chih-Ming Chen1, 3, †
  • 1Department of Chemical Engineering, National Chung Hsing University, 145 Xingda Rd., South Dist., Taichung 402, Taiwan
  • 2Department of Chemical Engineering, Feng Chia University, 100 Wenhwa Rd., Seatwen, Taichung 40724, Taiwan
  • 3Innovation and Development Center of Sustainable Agriculture (IDCSA), National Chung Hsing University, Taichung 402, Taiwan
E-mail:
Surface metallization of polymer substrate and film adhesion are crucial to the development of flexible electronics. This study demonstrates the co-silanization engineering on the polyimide (PI) film by mutual intercropping of two organosilane molecules to improve their grafting orientability and enhance the adsorbability toward the PI substrate and loaded metal atoms. The mutual intercropping-inspired cosilanization engineering is implemented by using 3-[(trimethylsilyl)ethynyl]pyridine (TEP) as a supporting organosilane to spatially confine the grafting orientation of the supported aminosilane, 3- [2-(2-aminoethylamino)ethylamino]propyl-trimethoxysilane (ETAS), leading to the formation of a welloriented organosilane composite nanolayer as adhesion promotion layer for flexible conductors. The flexible Cu conductor electrolessly deposited on the PI film by co-silanization shows improved adhesion strength (0.9 kgf/cm) compared to those based on mono-silanization (0.51 kgf/cm) and sputtered Ta/Cu (0.4 kgf/cm). Superior deformability (bendability) was also achieved for the co-silanized Cu/PI sample by retaining good electrical property after bending cycle up to 1000.
Keywords:Mutual intercropping;Co-silanization;Polymer metallization;Adhesion;Supporting organosilane
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