THERMAL INTERFACE MATERIALS BY POLYMERIZATION INDUCED PHASE SEPARATION

    公开(公告)号:US20240360297A1

    公开(公告)日:2024-10-31

    申请号:US18285434

    申请日:2022-04-05

    CPC classification number: C08K13/02 C08K2201/01 C08K2201/011

    Abstract: Disclosed are thermal interface materials having phase separated domains and methods of preparing the same. Exemplary polymer resins solubilize/disperse thermally conductive filler particles in the uncured resin, and, during the cure, the resin may phase separate from the thermally conductive filler particles to form domains of cured resin and domains of conductive filler. Exemplary cured systems comprise: metallic nanoparticles or an aromatic carbon based material, a polyfunctional surfactant, and a crosslinked polymer network; wherein the cured system has domains enriched with the metallic nanoparticles or the aromatic carbon based material and domains enriched with the crosslinked polymer network, and wherein the polyfunctional surfactant is covalently bonded with the crosslinked polymer network. Exemplary methods for making a cured system comprise: applying a magnetic field to form domains enriched with the metallic nanoparticles and domains enriched with the crosslinked polymer network.

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