公开(公告)号：US20210188648A1

公开(公告)日：2021-06-24

申请号：US16606297

申请日：2018-04-20

Applicant: AMOGREENTECH CO., LTD.

Inventor： Seung Jin CHOI

IPC: C01B32/225 ,  C01B32/205 ,  C08L87/00 ,  C08L57/00 ,  C08K3/04 ,  C09C3/10 ,  C08K9/04

Abstract: A graphite composition is provided. A graphite composition according to one embodiment of the present invention comprises: a graphite composite in which nanoparticles having a catecholamine layer on the surface thereof are fixed on graphite; and graphite of at least one of graphite flakes, spherical graphite, and expanded graphite. According to this, since the graphite composition has a high dispersibility in a substrate of a different material, a composite material thus realized exhibits a uniform heat dissipation performance and can prevent mechanical strength from deteriorating at a specific position. In addition, since the compatibility with the substrate of a different material is excellent and thus the interface property with the substrate is excellent, the realized composite material can exhibit a further improved heat dissipation performance and mechanical strength. Furthermore, it is very easy to form shapes during injection/extrusion molding in combination with a substrate, and molding into complicated shapes is also possible.

公开(公告)号：US20200283618A1

公开(公告)日：2020-09-10

申请号：US16764329

申请日：2018-11-15

Applicant: AMOGREENTECH CO., LTD.

Inventor： Seung Jin CHOI

IPC: C08L57/00 ,  C08L87/00

Abstract: Provided is a composition for producing a graphite-polymer composite. A composition for producing a graphite-polymer composite according to an embodiment of the present invention is prepared by comprising: a heat radiation filler comprising a non-insulating filler and an insulating filler, the non-insulating filler comprising a graphite composite including nanoparticles combined to a surface of graphite and a catechol amine layer; and a matrix forming component comprising a thermoplastic polymer compound. According to the present invention, the composition leads to an improvement in insulation property of a heat radiation member and a minimization in deterioration of heat radiation performance of the heat radiation member, so that the utilization of the composition can be improved in industries requiring both heat radiation characteristics and heat insulation performance. In addition, the composition is combined with a base material, and thus is easily modified through injection/extrusion or the like at the time of molding and can be modified into various shapes. The composite produced according to the present invention expresses excellent heat radiation performance, secures excellent mechanical strength, and has excellent lightweightness and excellent economic feasibility, and thus can be widely applied to various technical fields requiring heat radiation.