Abstract: The present invention relates to a graphene ink composition including charged chemically modified graphene, a graphene flake, a binder and a solvent, wherein an absolute value of the zeta potential of the charged chemically modified graphene is 25 mV or more.
Type:
Grant
Filed:
May 14, 2019
Date of Patent:
August 29, 2023
Assignee:
UDUCK Advanced Materials
Inventors:
Myeong Gi Kim, Seongmin Chin, Sung Min Hong
Abstract: The present invention relates to a conductive paste composition for manufacturing a conductive film formed by dispersing conductive particles in a polymer resin, the conductive paste composition including: conductive metal particles, a polymer fiber, a polymer resin, and an auxiliary additive, wherein the polymer fiber is coated with a first graphene on a surface thereof.
Abstract: A composite sheet for shielding electromagnetic and radiating heat includes: a first layer formed of metal; and a second layer that is a graphene layer formed on one surface of the first layer and including charged chemically modified graphene such that thermal conductivity and electromagnetic shielding ability are improved while securing economic efficiency by using the second layer including the charged chemically modified graphene and the graphene flakes.
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