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Development and Characteristics of a New Insulator between Turns of Superconducting Coil  

박영욱 (경상대 대학원 고분자공학과)
이동성 (경상대 대학원 고분자공학과)
이정원 (경상대 대학원 전기공학과)
곽동순 (경상대 대학원 전기공학과)
김상현 (경상대 대학원 전기공학과)
Publication Information
Progress in Superconductivity and Cryogenics / v.4, no.1, 2002 , pp. 26-29 More about this Journal
Abstract
Polyimide-epoxysilane (coupling agent) composites were reacted with oligomeric PDMS, a condensation product of difunctional silane, by a sol-gel process and were then dried into films. And then, the surface, mechanical, and electric properties were measured. The study showed that PDMS existed in the polymide matrix by the use of FT-IR. In the mechanical properties, the maximum elongation and toughness was increased in the polyimide with silane-groups. But the maximum tensile strength was slightly decreased. And the intensive dispersion of the silane-groups on the surface of polyimide was ascertained through XPS measurement. In the electric properties. AC break down voltage was increased by increasing the amount of difunctional silane. This experiment showed that PDMS added polyimide had better mechanical and electric properties than classical materials.
Keywords
Insulator; Superconducting Coil; Polyimide; Sol-gel process;
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