KR101715466B1 - 탄소계 복합재의 제조 방법 및 이를 이용하여 제조된 탄소계 복합재 - Google Patents
탄소계 복합재의 제조 방법 및 이를 이용하여 제조된 탄소계 복합재 Download PDFInfo
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- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
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- C01B31/02—
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/158—Carbon nanotubes
- C01B32/168—After-treatment
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- C01B31/022—
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/05—Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
- H05K9/0088—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising a plurality of shielding layers; combining different shielding material structure
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2202/00—Structure or properties of carbon nanotubes
- C01B2202/06—Multi-walled nanotubes
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2202/00—Structure or properties of carbon nanotubes
- C01B2202/20—Nanotubes characterized by their properties
- C01B2202/36—Diameter
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
Description
도 2a 및 도 2b는 본 발명의 실시예에 따라 탄소 나노튜브와 탄소 마이크로코일의 중량 비율에 따른 전자파 차폐 효과를 예시한 도면,
도 3은 본 발명의 실시예에 따른 탄소계 복합재 샘플들의 제조 시 사용되는 탄소 마이크로코일의 증착 반응 조건을 예시한 도면,
도 4는 본 발명의 실시예에 따른 탄소계 복합재 샘플들의 조성 비율을 예시한 도면,
도 5는 본 발명의 실시예에 따라 탄소 마이크로코일이 성장된 기판 표면을 예시한 도면,
도 6은 본 발명의 실시예에 따른 탄소계 복합재 샘플들의 단면 조직을 예시한 도면,
도 7은 본 발명의 실시예에 따른 탄소계 복합재 샘플들에서 코팅수에 대응하는 코팅층의 두께를 예시한 도면,
도 8은 본 발명의 실시예에 따른 탄소계 복합재 샘플들에서 코팅수에 대응하는 체적 저항률을 예시한 도면,
도 9a 및 도 9b는 본 발명의 실시예에 따른 탄소계 복합재 샘플들에서 측정 주파수에 대응하는 전자파 차폐 효과를 예시한 도면.
Claims (14)
- 고분자 화합물에 희석제를 첨가하여 희석액을 수득하는 단계와,
상기 희석액에 탄소 나노튜브와 탄소 마이크로코일을 혼합하는 단계와,
상기 혼합하는 단계 이후에 초음파 처리를 통해 상기 고분자 화합물에 상기 탄소 나노튜브 및 탄소 마이크로코일을 분산시켜 탄소계 복합재를 제조하는 단계를 포함하며,
상기 탄소계 복합재는, 상기 탄소 나노튜브를 통해 2.5 GHz 미만의 주파수 대역에서 반사계 차폐 메커니즘에 따라 전자파를 차폐하고, 상기 탄소 마이크로코일을 통해 2.5 GHz를 초과하는 주파수 대역에서 흡수계 차폐 메커니즘에 따라 상기 전자파를 차폐하고,
상기 탄소 나노튜브 및 탄소 마이크로코일은, (0.5-1.5) : (0.5-1.5)의 중량 비율로 혼합되는 탄소계 복합재의 제조 방법.
- 삭제
- 제 1 항에 있어서,
상기 수득하는 단계 및 혼합하는 단계는, 30-40 중량%의 상기 고분자 화합물에 55-60 중량%의 상기 희석제를 첨가하고, 상기 희석액에 1-5 중량%의 상기 탄소 마이크로코일과 1-5 중량%의 상기 탄소 나노튜브를 혼합하는 탄소계 복합재의 제조 방법.
- 삭제
- 제 3 항에 있어서,
상기 고분자 화합물은, 60000-70000 범위의 분자량을 갖는 탄소계 복합재의 제조 방법.
- 제 3 항에 있어서,
상기 고분자 화합물은, 290-310 K에서 70000-90000 cps의 점도를 갖는 탄소계 복합재의 제조 방법.
- 제 3 항에 있어서,
상기 고분자 화합물은, 폴리우레탄(PU), 폴리에틸렌(PE), 폴리아세탈(POM), 폴리메틸메타크릴레이트(PMMA), 폴리아크릴(PA), 폴리카보네이트(PC), 폴리프로필렌(PP), 폴리에틸렌테레프탈레이트(PET), 폴리스티렌(PS) 중 선택된 어느 하나를 이용하고,
상기 희석제는 디메틸포름아미드(DMF), 메틸알콜(MeOH), 에틸알콜(EtOH), 프로필알콜(PA), 아이소프로필알콜(IPA), 부탄올(PA), 에틸렌글라이콜(EG), 에틸아세테이트(EA), 아세톤(Acetone), 톨루엔 중 선택된 어느 하나를 이용하는 탄소계 복합재의 제조 방법.
- 제 3 항에 있어서,
상기 탄소 나노튜브는, 5-20 nm 직경의 다중벽 형태를 갖는 탄소계 복합재의 제조 방법.
- 제 1 항에 있어서,
상기 탄소계 복합재는, 페이스트 형태로 수득되는 탄소계 복합재의 제조 방법.
- 제 9 항에 있어서,
상기 탄소계 복합재를 제조하는 단계는, 400-600 W와 10-30 kHz의 공정 조건에서 온(on)과 오프(off)를 반복하는 상기 초음파 처리를 100-140 분의 시간 조건에 따라 수행하는 탄소계 복합재의 제조 방법.
- 제 1 항에 있어서,
상기 탄소 마이크로코일은, 아세틸렌(C2H2) 및 수소(H2)를 원료 가스로 하고, 육불화황(SF6)을 첨가 가스로 하여 증착되되, 상기 아세틸렌은 450-550 sccm의 유속 조건, 상기 수소는 20-50 sccm의 유속 조건, 상기 육불화황은 20-50 sccm의 유속 조건으로 주입되어 기판에 증착되는 탄소계 복합재의 제조 방법.
- 제 11 항에 있어서,
상기 탄소 마이크로코일은, 상기 아세틸렌 및 수소를 80-90 분의 주입 시간 조건으로, 상기 육불화황을 2-10 분의 주입 시간 조건으로 증착되는 탄소계 복합재의 제조 방법.
- 제 12 항에 있어서,
상기 탄소 마이크로코일은, 90-110 Torr의 전체 압력 조건, 80-90 분의 전체 증착 시간 조건 및 700-800 ℃의 기판 온도 조건에서 증착되는 탄소계 복합재의 제조 방법.
- 제 1 항, 제 3 항, 제 5 항 내지 제 13 항 중 어느 한 항에 따른 탄소계 복합재의 제조 방법을 이용하여 제조되며, 고분자 화합물에 탄소 나노튜브 및 탄소 마이크로코일을 형성한 탄소계 복합재.
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KR101105473B1 (ko) | 2010-01-18 | 2012-01-13 | 인제대학교 산학협력단 | 신규한 구조의 탄소계 나노복합체 및 이의 제조방법 |
KR101308183B1 (ko) | 2011-08-19 | 2013-09-12 | 숭실대학교산학협력단 | 전도성 고분자 복합체 및 이의 성형방법 |
KR101388468B1 (ko) * | 2012-08-28 | 2014-04-23 | 신라대학교 산학협력단 | 육불화황 가스의 주입변수 변화를 통한 기하구조가 제어된 탄소코일의 제조방법 |
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