THERMOPLASTIC RESIN COMPOSITION HAVING EXCELLENT HEAT RESISTANCE AND ELECTROMAGNETIC WAVE SHIELDING ABILITY, METHOD FOR MANUFACTURING SAME AND INJECTION-MOLDED ARTICLE MANUFACTURED THEREFROM

Title:

THERMOPLASTIC RESIN COMPOSITION HAVING EXCELLENT HEAT RESISTANCE AND ELECTROMAGNETIC WAVE SHIELDING ABILITY, METHOD FOR MANUFACTURING SAME AND INJECTION-MOLDED ARTICLE MANUFACTURED THEREFROM

Document Type and Number:

WIPO Patent Application WO/2020/145500

Kind Code:

A1

Abstract:

The present invention relates to a thermoplastic resin composition having excellent heat resistance and electromagnetic wave shielding ability, a method for manufacturing same, and an injection-molded article manufactured therefrom. More specifically, the present invention relates to a thermoplastic resin composition having excellent heat resistance and electromagnetic wave shielding ability, a method for manufacturing same, and an injection-molded article manufactured therefrom, the thermoplastic resin composition comprising: a) 100 parts by weight of a thermoplastic resin including 80% to 100% by weight of a base resin and 0% to 20% by weight of a reinforcing resin; b) 2 to 60 parts by weight of linear carbon fibers having an average diameter of 1 μm to 15 μm; c) 1 to 5 parts by weight of carbon nanofibrils having a BET specific surface area of 200-400 m2/g; d) 1 to 15 parts by weight of carbon nanoplates; and e) 1 to 25 parts by weight of metal powder. The present invention has excellent mechanical properties, such as impact strength, and also has excellent heat resistance and electromagnetic wave shielding ability, particularly high-frequency electromagnetic wave shielding efficiency, and thus can be used as automobile parts, and electric and electronic parts. Furthermore, the present invention has the effects of providing a thermoplastic resin composition which can be effectively used as a metal replacement material of aluminum and magnesium alloys, etc., a method for manufacturing same, and an injection-molded article manufactured therefrom.

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Inventors:

CHOI GI DAE (KR)
KIM YOUNGJOO (KR)
LEE EON SEOK (KR)
YUN CHANGHUN (KR)
KIM MINSU (KR)

Application Number:

PCT/KR2019/015571

Publication Date:

July 16, 2020

Filing Date:

November 14, 2019

Export Citation:

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Assignee:

LG CHEMICAL LTD (KR)

International Classes:

C08K3/04; B29B9/02; B29B9/10; B29C48/00; C08K3/08; C08K7/06; C08L101/00

Foreign References:

KR20150078458A	2015-07-08
KR101307378B1	2013-09-11
KR20170090040A	2017-08-07
KR20040078002A	2004-09-08
KR101248385B1	2013-04-02
KR20180076064A	2018-07-05
KR20130066973A	2013-06-21

Other References: