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    SELF HEALING SILICA BASED DIELECTRIC INK FOR PRINTED ELECTRONIC APPLICATIONS
    1.
    发明申请
    SELF HEALING SILICA BASED DIELECTRIC INK FOR PRINTED ELECTRONIC APPLICATIONS 审中-公开
    用于印刷电子应用的自加热二氧化硅基电介质墨水

    公开(公告)号：WO2015087350A1

    公开(公告)日：2015-06-18

    申请号：PCT/IN2014/000766

    申请日：2014-12-10

    Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH

    Inventor： SURENDRAN, Kuzhichalil Peethambharan ,  SEBASTIAN, Mailadil Thomas ,  VARGHESE, Jobin

    IPC: C09D11/00 ,  C04B18/14 ,  C04B41/00 ,  C04B41/50 ,  C09D11/322

    CPC classification number: C09D11/037 ,  C09D11/033 ,  C09D11/06 ,  C09D11/106 ,  H05K1/024 ,  H05K1/028

    Abstract: The present invention relates to self healing silica based dielectric ink for printed electronic applications. Novel self healing silica based dielectric ink screen printable on flexible substrates is indigenously developed for printed electronic applications. The silica ink consist of solvent system (Xylene/Ethanol), a filler (55 - 65 wt. % of SiO2 with respect to solvent system), a dispersant (0.8 - 1.2 wt. % of natural fish oil with respect to filler) and a binder (4 - 6 wt. % of Polyvinyl Butyral with respect to filler). The colloidal ink comprises of silica as the major filler with suitable organic vehicles. The present invention of silica ink is advantageous over water based dielectric inks in terms of faster curing time. Thixotropic behavior of the colloidal silica ink is optimized based on screen printing technique. Solvent mixture, natural dispersant, polymer binder etc. played a key role in controlling the colloidal stability of the ink. The microstructure and surface roughness of printed dielectric silica ink on Mylar film was investigated. The radio and microwave dielectric properties are also investigated for the optimized silica ink. The best dielectric properties, fast curing and printability of the developed silica ink make it a suitable candidate for dye-sensitized solar cell applications also.

    Abstract translation: 本发明涉及用于印刷电子应用的自愈二氧化硅基电介质油墨。 基于柔性基板上印刷的新型自愈二氧化硅基电介质油墨丝网为印刷电子应用而自主研发。 二氧化硅油墨由溶剂系统（二甲苯/乙醇），填料（相对于溶剂系统为55-65重量％的SiO 2），分散剂（相对于填料为0.8-1.2重量％的天然鱼油）和 粘合剂（相对于填料为4-6重量％的聚乙烯醇缩丁醛）。 胶体油墨包括二氧化硅作为主要填料和合适的有机载体。 在更快的固化时间方面，二氧化硅墨水的本发明相对于水基电介质油墨是有利的。 基于丝网印刷技术，胶体二氧化硅墨水的触变性能得到了优化。 溶剂混合物，天然分散剂，聚合物粘合剂等在控制油墨的胶体稳定性方面起关键作用。 研究了印刷电介质二氧化硅墨在Mylar薄膜上的微观结构和表面粗糙度。 还研究了优化的二氧化硅墨水的无线电和微波介电性能。 开发的二氧化硅墨水的最佳介电性能，快速固化和可印刷性使其成为染料敏化太阳能电池应用的合适的候选者。

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