Insulating composition for substrate, and prepreg and substrate using the same

摘要

The present invention relates to an insulating composition for a substrate including a soluble liquid crystal thermosetting oligomer, a metal alkoxide, a graphene oxide, and a short fiber, and an insulating material and a substrate using the same. The insulating composition in accordance with the present invention can effectively reduce the coefficient of thermal expansion by the addition of the metal alkoxide and the graphene oxide. Therefore, it is possible to provide a substrate material with greatly increased strength and rigidity by the addition of the short fiber as well as to manufacture a substrate with improved thermal stability by using the insulating composition in accordance with the present invention as an insulating material of the substrate to minimize dimensional deformation due to heat.

主权项

1. An insulating composition for a substrate comprising:
a soluble liquid crystal thermosetting oligomer; a metal alkoxide; a graphene oxide; and a short fiber, wherein the soluble liquid crystal thermosetting oligomer is a compound represented by the following chemical formula 1, where R1 and R2 are CH3 or H, and at least one of the R1 and the R2 is CH3, Ar1 is a divalent aromatic organic group with a molecular weight of less than 5,000, which comprises one or more structural units selected from the group consisting of ester, amide, ester amide, ester imide, and ether imide, and the Ar1 comprises one or more structural units selected from the group represented by the following chemical formula 2, where Ar2, Ar4, Ar5, and Ar6 are divalent aromatic organic groups and comprise one or more structural units selected from the group represented by the following chemical formula 3, Ara is a tetravalent aromatic organic group and comprises one or more structural units selected from the group represented by the following chemical formula 4, and n and m are integers from 1 to 100