KR102327600B1 - 융합 필라멘트 제작된 부품의 향상된 비드간 확산성 결합을 위한 cnt 충전 중합체 복합물의 마이크로파-유도 국부적 가열 - Google Patents
융합 필라멘트 제작된 부품의 향상된 비드간 확산성 결합을 위한 cnt 충전 중합체 복합물의 마이크로파-유도 국부적 가열 Download PDFInfo
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- KR102327600B1 KR102327600B1 KR1020167020477A KR20167020477A KR102327600B1 KR 102327600 B1 KR102327600 B1 KR 102327600B1 KR 1020167020477 A KR1020167020477 A KR 1020167020477A KR 20167020477 A KR20167020477 A KR 20167020477A KR 102327600 B1 KR102327600 B1 KR 102327600B1
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- microwave
- carbon nanotubes
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- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/202—Conductive
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- B—PERFORMING OPERATIONS; TRANSPORTING
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Abstract
Description
도 1a는 중합체 필라멘트 외부를 분무 증착에 의해 탄소 나노튜브로 코팅하기 위한 공정을 예시한다.
도 1b는 도 1a에 예시된 분무 증착 공정을 보여주는 사진이다.
도 2는 중합체 필라멘트 외부를 딥 코팅에 의해 탄소 나노튜브로 코팅하기 위한 대안적인 공정을 보여주는 사진이다.
도 3은 탄소 나노튜브/PLA-코팅된 필라멘트의 사진이다.
도 4는 (도 1에 도시된 분무 증착 후) 코팅된 중합체 필라멘트가 마이크로파 가열에 노출되는 공정을 예시한다.
도 5는 (도 1에 도시된 바와 같이) 분무 증착에 의해 부분적으로 코팅된 후 (도 4에 도시된 바와 같이) 마이크로파 가열에 노출된 중합체 필라멘트의 사진이다.
도 6은 마이크로파에 노출되는 크로스햇치 스택 배치로 배열된 중합체 필라멘트 (도 1에 도시된 바와 같이 분무 증착 후)를 예시한다.
도 7은 (도 1에 도시된 바와 같이) 분무 증착에 의해 중합체 필라멘트를 코팅하고 배열한 후 코팅된 중합체 필라멘트의 크로스햇치 스택을 (도 6에 도시된 바와 같이) 마이크로파에 노출시킴으로써 제조된 마이크로파-융합된 크로스햇치 스택의 사진이다. 이러한 도 7에서 확대된 부분은 마이크로파-융합된 크로스햇치 스택 (701)의 광학 현미경 이미지이다.
도 8은 유사하게 제조된 3D 프린팅된 물체 (물체 (801) 및 물체 (1102))의 2 사진이다. 물체 (801)는 순수 ABS 프린터 필라멘트로의 적층 가공 공정에 의해 제조되었다. 물체 (1102)는 마이크로파 조사로 인쇄 후 처리되는, 탄소 나노튜브 코팅된 ABS 프린터 필라멘트로의 동일한 적층 가공 공정에 의해 제조된다.
도 9는 프린팅 공정에 통합된 CNT의 존재 (902) 및 부재 (901) 하의 인장성 도그본 샘플의 사진이다.
도 10은 프린팅 공정에 통합된 CNT의 존재 (1002) 및 부재 (1001) 하의 압축 평가 샘플의 사진이다. 이미지는 압축 평가 후의 샘플 및 샘플에 가해진 CNT 및 마이크로파 처리로의 압축 강도의 차이를 보여준다.
도 11은 탄소 나노튜브의 분산액으로 코팅된 중합체 필라멘트의 단면도의 SEM이다.
도 12는 무작위로 배향된 다중벽 탄소 나노튜브를 보여주는 도 11 (추가로 확대됨)의 코팅된 중합체 필라멘트의 SEM이다.
도 13은 본 발명의 구체예에 의해 제조된 3D 프린팅된 물체 (상면에서 볼 때)의 SEM이다 (마이크로파에 의해 조사된 후).
도 14는 무작위로 배향된 다중벽 탄소 나노튜브를 보여주는 도 13의 3D 프린팅된 물체 (상면에서 보고 추가로 확대됨)의 SEM이다.
도 15는 도 7의 3D 프린팅된 물체의 단면의 SEM이다.
도 16a는 다중-벽 탄소 나노튜브 코팅된 PLA 필라멘트의 다발의 사진이다. 도 16b는 마이크로파 노출 시 도 16a의 다발의 온도 프로파일의 전방 관측 적외선 (FLIR 카메라)으로부터의 이미지이다.
도 17은 PLA 필름에서 DC 전도도 (1701) 및 AC 전도도 (1702) 대 다중벽 로딩을 반영하는 그래프이다.
도 18은 0.1 wt%로 로딩된 PLA/다중벽 탄소 나노튜브 샘플의 전방 관측 적외선 (FLIR 카메라)으로부터의 이미지이다.
도 19는 0.5 wt%로 로딩된 PLA/다중벽 탄소 나노튜브 샘플의 FLIR 카메라로부터의 이미지이다.
도 20a는 1.0 wt%로 로딩된 PLA/다중벽 탄소 나노튜브 샘플의 FLIR 카메라로부터의 이미지이다. 도 20b는 도 20a의 이미지의 확대된 도면이다. 도 20c는 균일 중합체 나노복합물에서 1.0 wt%의 CNT 로딩의 함수로서 부피 손실 밀도 (열로서 소멸된 전력에 대략적으로 비례함)의 ANSYS 시뮬레이션이다.
도 21a는 2.5 wt%로 로딩된 PLA/다중벽 탄소 나노튜브 샘플의 FLIR 카메라로부터의 이미지이다. 도 21b는 도 21a의 이미지의 확대된 도면이다. 도 21c는 균일 중합체 나노복합물에서 2.5 wt%의 CNT 로딩의 함수로서 부피 손실 밀도의 ANSYS 시뮬레이션이다.
도 22a는 5 wt%로 로딩된 PLA/다중벽 탄소 나노튜브 샘플의 FLIR 카메라로부터의 이미지이다. 도 22b는 도 22a의 이미지의 확대된 도면이다. 도 22c는 균일 중합체 나노복합물에서 5 wt%의 CNT 로딩의 함수로서 부피 손실 밀도의 ANSYS 시뮬레이션이다.
도 23a는 10 wt%로 로딩된 PLA/다중벽 탄소 나노튜브 샘플의 FLIR 카메라로부터의 이미지이다. 도 23b는 도 23a의 이미지의 확대된 도면이다. 도 23c는 균일 중합체 나노복합물에서 10 wt%의 CNT 로딩의 함수로서 부피 손실 밀도의 ANSYS 시뮬레이션이다.
도 24는 PLA/다중벽 탄소 나노튜브 샘플 (0.1 wt%, 0.5 wt%, 1 wt%, 2.5 wt%, 5 wt%, 및 10 wt%로 로딩됨)의 최대 온도 대 시간의 그래프이다.
도 25a는 순수 PLA 및 PLA/다중벽 탄소 나노튜브 (10 wt%)에 대한 DSC 곡선의 그래프이다.
도 25b는 순수 PLA 및 PLA/다중벽 탄소 나노튜브 (10 wt%)에 대한 DSC 서모그램의 그래프이다.
도 25c는 순수 PLA 및 PLA/다중벽 탄소 나노튜브 (10 wt%)에 대한 일정 압력에서의 열 용량 대 온도를 보여주는 그래프이다.
도 26은 일정한 유전 상수를 갖는 직각 도파관에서 시뮬레이션된 손실 유전체의 고정된 유전 상수에 대한 손실 탄젠트 대 표준화된 마이크로파 흡수된 전력의 시뮬레이션된 결과를 보여주는 그래프이다.
도 27은 CNT를 나타내는 얇은 전도성 쉘로 코팅된 PLA 필라멘트 다발에서 전계 강도를 보여준다.
도 28은 마이크로파 강화된 CNT/중합체 필름 부착에 대한 박리 평가의 개략도를 예시한다.
도 29는 본 발명의 구체예의 공정을 예시하며, 여기에서 원 위치의 마이크로파 도포구는 마이크로파 에너지를 압출 지점에 가하여 중합체의 국소화된 가열 및 용접을 조정한다.
Claims (36)
- 중합체 복합물로서,
표면에 코팅이 형성된 가융성(fusible) 중합체 필라멘트를 포함하고, 상기 코팅이 중합체 매트릭스에 분산된 전기 전도성 나노물질의 전기 전도성 투과(percolated) 네트워크를 포함하며, 상기 가융성 중합체는 라디오파 흡수를 통해 전기 전도성 나노물질에 의해 생성된 국부적인 열에 의해 가융성인, 중합체 복합물. - 제 1항에 있어서, 중합체 필라멘트가 스티렌(ABS), 폴리카르보네이트(PC), 폴리락트산(PLA), 폴리에틸렌(PE), PC/ABS, 폴리페닐설폰(PPSU), 폴리아미드(나일론), 폴리스티렌(PS), 폴리에테르이미드, 폴리에테르 에테르 케톤(PEEK), 폴리테트라플루오로에틸렌(PTFE), 및 이들의 조합물로 구성된 군으로부터 선택된 하나 이상의 중합체를 포함하는 중합체 복합물.
- 삭제
- 제 1항에 있어서, 전기 전도성 나노물질이 탄소 나노튜브를 포함하는 중합체 복합물.
- 제 4항에 있어서, 탄소 나노튜브가 다중 벽 탄소 나노튜브인 중합체 복합물.
- 제 1항에 있어서, 코팅이 100 nm 내지 0.5 mm의 두께를 갖는 중합체 복합물.
- 제 1항에 있어서, 코팅이 3 wt% 내지 10 wt%의 탄소 나노튜브를 포함하는 중합체 복합물.
- 제 1항에 있어서, 코팅이 전기 전도성 나노물질의 전기 전도성 투과 네트워크를 형성하기에 충분한 wt%의 탄소 나노튜브를 갖는 중합체 복합물.
- 제 1항에 있어서, 중합체 필라멘트가 용적을 갖고 전기 전도성 나노물질이 상기 용적 전반에 걸쳐 존재하는 중합체 복합물.
- 중합체 복합물로서,
표면에 코팅이 형성된 가융성 중합체 필라멘트를 포함하고, 상기 코팅이 중합체 매트릭스에 분산된 전기 전도성 나노물질을 포함하며, 상기 전기 전도성 나노물질이 코팅에서 사전결정된 온도 프로파일을 생성하도록 선택된 라디오파를 흡수할 때 중합체 필라멘트의 코팅의 계면에서 인접한 중합체 필라멘트에 대한 융합을 제공하는 중합체 필라멘트의 임계 유전체 손실 탄젠트(threshold dielectric loss tangent)를 제공하기에 충분한 농도로 제공된 전기 전도성 나노물질을 포함하는 중합체 복합물. - 제 10항에 있어서, 임계 유전체 손실 탄젠트가 상기 라디오파에 의해 전기 전도성 나노물질에 유도된 전류를 최대화시키는 중합체 복합물.
- 제 10항에 있어서, 코팅이 계면에서 요망되는 결합 강도를 나타내도록 전기 전도성 나노물질의 농도가 조정되는 중합체 복합물.
- 제 10항에 있어서, 코팅이 융합시 계면을 가로질러 계면간에 분산되는 중합체 사슬을 포함하는 중합체 복합물.
- 제 10항에 있어서, 중합체 필라멘트가 스티렌(ABS), 폴리카르보네이트(PC), 폴리락트산(PLA), 폴리에틸렌(PE), PC/ABS, 폴리페닐설폰(PPSU), 폴리아미드(나일론), 폴리스티렌(PS), 폴리에테르이미드, 폴리에테르 에테르 케톤(PEEK), 폴리테트라플루오로에틸렌(PTFE), 및 이들의 조합물로 구성된 군으로부터 선택된 하나 이상의 중합체를 포함하는 중합체 복합물.
- 삭제
- 제 10항에 있어서, 전기 전도성 나노물질이 탄소 나노튜브를 포함하는 중합체 복합물.
- 제 10항에 있어서, 코팅이 전기 전도성 나노물질의 전기 전도성 투과 네트워크를 형성하기에 충분한 wt%의 탄소 나노튜브를 갖는 중합체 복합물.
- 제 10항에 있어서, 중합체 필라멘트가 용적을 갖고 전기 전도성 나노물질이 상기 용적 전반에 걸쳐 존재하는 중합체 복합물.
- 3차원 물체로서,
연속 층으로 배열된 복수의 중합체 필라멘트를 포함하고, 중합체 필라멘트가 중합체 매트릭스에 분산된 전기 전도성 나노물질의 전기 전도성 투과 네트워크를 포함하는 코팅을 포함하고 중합체 필라멘트의 코팅은 함께 융합되는 3차원 물체. - 제 19항에 있어서, 중합체 필라멘트가 스티렌(ABS), 폴리카르보네이트(PC), 폴리락트산(PLA), 폴리에틸렌(PE), PC/ABS, 폴리페닐설폰(PPSU), 폴리아미드(나일론), 폴리스티렌(PS), 폴리에테르이미드, 폴리에테르 에테르 케톤(PEEK), 폴리테트라플루오로에틸렌(PTFE), 및 이들의 조합물로 구성된 군으로부터 선택된 하나 이상의 중합체를 포함하는 3차원 물체.
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- 제 19항에 있어서, 전기 전도성 나노물질이 탄소 나노튜브를 포함하는 3차원 물체.
- 제 19항에 있어서, 코팅이 전기 전도성 나노물질의 전기 전도성 투과 네트워크를 형성하기에 충분한 wt%의 탄소 나노튜브를 갖는 3차원 물체.
- 제 19항에 있어서, 중합체 필라멘트가 용적을 갖고 전기 전도성 나노물질이 상기 용적 전반에 걸쳐 존재하는 3차원 물체.
- 제 1항에 있어서, 코팅이 3D 프린팅 동안 압출 시 유지되는 중합체 복합물.
- 제 10항에 있어서, 코팅이 3D 프린팅 동안 압출 시 유지되는 중합체 복합물.
- 제 19항에 있어서, 복수의 중합체 필라멘트가 3D 프린팅 압출에 의해 배열되는 3차원 물체.
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| ES3031759T3 (en) | 2025-07-11 |
| US20200009850A1 (en) | 2020-01-09 |
| JP6563953B2 (ja) | 2019-08-28 |
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| EP3086914B1 (en) | 2025-03-26 |
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| CA3168102A1 (en) | 2015-09-03 |
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| KR102437634B1 (ko) | 2022-08-26 |
| JP2022024061A (ja) | 2022-02-08 |
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| CA2935221C (en) | 2022-10-04 |
| JP2019202548A (ja) | 2019-11-28 |
| US10414147B2 (en) | 2019-09-17 |
| EP3086914A2 (en) | 2016-11-02 |
| US20160325491A1 (en) | 2016-11-10 |
| KR20210136184A (ko) | 2021-11-16 |
| CA2935221A1 (en) | 2015-09-03 |
| WO2015130401A2 (en) | 2015-09-03 |
| WO2015147939A1 (en) | 2015-10-01 |
| JP7031878B2 (ja) | 2022-03-08 |
| WO2015130401A9 (en) | 2015-12-10 |
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