KR20190125094A - 나노섬유웹 압정전용량 센서 및 이의 제조방법 - Google Patents
나노섬유웹 압정전용량 센서 및 이의 제조방법 Download PDFInfo
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- KR20190125094A KR20190125094A KR1020180049392A KR20180049392A KR20190125094A KR 20190125094 A KR20190125094 A KR 20190125094A KR 1020180049392 A KR1020180049392 A KR 1020180049392A KR 20180049392 A KR20180049392 A KR 20180049392A KR 20190125094 A KR20190125094 A KR 20190125094A
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- Prior art keywords
- nanofiber web
- methylimidazolium
- dimethylimidazolium
- capacitive sensor
- tack
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- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 8
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- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 5
- KIWBPDUYBMNFTB-UHFFFAOYSA-N Ethyl hydrogen sulfate Chemical compound CCOS(O)(=O)=O KIWBPDUYBMNFTB-UHFFFAOYSA-N 0.000 claims description 5
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 claims description 5
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- 150000001768 cations Chemical class 0.000 claims description 5
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 claims description 5
- JZMJDSHXVKJFKW-UHFFFAOYSA-M methyl sulfate(1-) Chemical compound COS([O-])(=O)=O JZMJDSHXVKJFKW-UHFFFAOYSA-M 0.000 claims description 5
- ITMCEJHCFYSIIV-UHFFFAOYSA-M triflate Chemical compound [O-]S(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-M 0.000 claims description 5
- KMXPUIKCGHDWFM-UHFFFAOYSA-N 1,3-dimethylimidazol-1-ium Chemical compound C[N+]1=CN(C=C1)C.C[N+]1=CN(C=C1)C KMXPUIKCGHDWFM-UHFFFAOYSA-N 0.000 claims description 4
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- ZXMGHDIOOHOAAE-UHFFFAOYSA-N 1,1,1-trifluoro-n-(trifluoromethylsulfonyl)methanesulfonamide Chemical compound FC(F)(F)S(=O)(=O)NS(=O)(=O)C(F)(F)F ZXMGHDIOOHOAAE-UHFFFAOYSA-N 0.000 claims description 3
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- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 3
- 229940116423 propylene glycol diacetate Drugs 0.000 claims description 3
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 2
- FKJOLAWWPCHHMF-UHFFFAOYSA-N C(C)[N+]1=CN(C=C1)C.C(C)[N+]1=CN(C=C1)C Chemical compound C(C)[N+]1=CN(C=C1)C.C(C)[N+]1=CN(C=C1)C FKJOLAWWPCHHMF-UHFFFAOYSA-N 0.000 claims 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims 2
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- NJMWOUFKYKNWDW-UHFFFAOYSA-N 1-ethyl-3-methylimidazolium Chemical compound CCN1C=C[N+](C)=C1 NJMWOUFKYKNWDW-UHFFFAOYSA-N 0.000 description 8
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- XUAXVBUVQVRIIQ-UHFFFAOYSA-N 1-butyl-2,3-dimethylimidazol-3-ium Chemical compound CCCCN1C=C[N+](C)=C1C XUAXVBUVQVRIIQ-UHFFFAOYSA-N 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/14—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/06—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances
- H01B1/12—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances organic substances
- H01B1/122—Ionic conductors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
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Abstract
Description
도 2는 본 발명의 일 실시예에 따른 나노섬유웹 압정전용량 센서의 입체도를 도시한 것이다.
도 3은 본 발명의 다른 실시예에 따른 나노섬유웹 압정전용량 센서의 제조 방법에 관한 흐름도이다.
도 4는 본 발명의 다른 실시예에 따른 나노섬유웹 압정전용량 센서의 제조 방법 중 나노섬유웹 준비 단계를 세분화한 흐름도이다.
도 5는 본 발명의 다른 실시예에 따른 나노섬유웹 압정전용량 센서의 제조 방법 중 전기방사 공정 장치에 관하여 도시한 것이다.
도 6a는 본 발명의 비교예 5에 따른 나노섬유웹 표면의 전계 방출 주사 전자 현미경(field emission scanning electron microscopy, FE-SEM) 이미지를 도시한 것이다.
도 6b는 본 발명의 실시예 1에 따른 나노섬유웹 표면의 전계 방출 주사 전자 현미경 이미지를 도시한 것이다.
도 7a 내지 도 7d는 본 발명의 실시예 1 및 비교예 1 내지 비교예 3에 따른 나노섬유웹 압정전용량 센서의 20 사이클 동안의 주기적인 힘 인가에 따른 시간 대 커패시턴스 곡선을 도시한 그래프이다.
도 8a 내지 도 8d는 본 발명의 실시예 1 및 비교예 1 내지 비교예 3에 따른 나노섬유웹 압정전용량 센서의 커패시턴스-압력 히스테리시스 곡선을 도시한 그래프이다.
도 9a 내지 도 9d는 본 발명의 실시예 1 내지 실시예 3 및 비교예 1에 따른 나노섬유웹 압정전용량 센서에서, 이온성 액체의 첨가량 변화에 따른 커패시턴스-압력 히스테리시스 곡선을 도시한 그래프이다.
도 10a는 본 발명의 실시예 1 및 비교예 1 내지 비교예 3에 대한 히스테리시스(%) 및 커패시턴스 변화(ΔC)를 도시한 그래프이다.
도 10b는 본 발명의 실시예 1 내지 실시예 3 및 비교예 1에 대하여, 이온성 액체의 첨가량 변화에 따른 히스테리시스(%) 및 커패시턴스 변화(ΔC)를 도시한 그래프이다.
도 11a 내지 도 11d는 실시예 1 및 비교예 1 내지 비교예 3에 따른 나노섬유웹 압정전용량 센서의 크리프(creep) 특성을 도시한 그래프이다.
도 12a 내지 도 12d는 실시예 1 및 비교예 1 내지 비교예 3에 따른 일정 커패시턴스에서의 응력완화을 시간 대 압력 곡선으로 도시한 것이다.
120: 하부전극 121: 하부전극 전극연결부
130: 상부전극 131: 상부전극 전극연결부
140: 샌드위치 구조체 150: 절연층
200: 전기방사 공정 장치 210: 시린지펌프
220: 니들 230: 회전형 실린더 콜렉터 및 접지
240: 전원
Claims (15)
- 하부전극, 상기 하부전극 상에 형성되는 공극(void)을 포함하는 나노섬유웹 및 상기 나노섬유웹(nano-fiber web) 상에 형성되는 상부전극을 포함하는 샌드위치 구조체; 및
상기 샌드위치 구조체의 외부에 형성되어 상기 샌드위치 구조체를 캡슐화 하는 절연층
을 포함하고,
상기 나노섬유웹 내에 이온성 액체(ionic liquid)가 함유되어 있는 것을 특징으로 하는 나노섬유웹 압정전용량(piezocapacitive) 센서.
- 제1항에 있어서,
상기 전극은 금속 포일 페이퍼(foil paper), 전도성 섬유 직-편물(conductive fabric) 및 탄성 전도체 중 적어도 하나로 형성되는 것을 특징으로 하는 나노섬유웹 압정전용량 센서.
- 제1항에 있어서,
상기 절연층은 탄성 절연층 및 접착성 절연층 중 적어도 하나로 형성되고,
상기 탄성 절연층 및 접착성 절연층은 절연 페이퍼, 절연 필름 및 절연 섬유 중 적어도 하나로 형성되는 것을 특징으로 하는 나노섬유웹 압정전용량 센서.
- 제1항에 있어서,
상기 나노섬유웹 압정전용량 센서는, 상기 전극과 전기적으로 연결된 구조의 전극 연결부를 포함하고,
상기 전극 연결부는 상기 절연층의 외부로 연장되어 있는 것을 특징으로 하는 나노섬유웹 압정전용량 센서.
- 제1항에 있어서,
상기 폴리머는 폴리우레탄(polyurethane), 폴리에스테르-폴리우레탄 공중합체(polyester-polyurethane) 및 폴리에테르-폴리우레탄 공중합체(polyether-polyurethane) 중 적어도 하나를 포함하는 것을 특징으로 하는 나노섬유웹 압정전용량 센서.
- 제1항에 있어서,
상기 이온성 액체는 1-메틸-3-메틸이미다졸리움(1-Methyl-3-methylimidazolium), 1-에틸-3-메틸이미다졸리움(1-Ethyl-3-methylimidazolium), 1-프로필-3-메틸이미다졸리움(1-Propyl-3-methylimidazolium), 1-부틸-3-메틸이미다졸리움(1-Butyl-3-methylimidazolium), 1-헥실-3-메틸이미다졸리움(1-Hexyl-3-methylimidazolium), 1-메틸-2,3-디메틸이미다졸리움(1-Methyl-2,3-dimethylimidazolium), 1-에틸-2,3-디메틸이미다졸리움(1-Ethyl-2,3-dimethylimidazolium), 1-프로필-2,3-메틸이미다졸리움(1-Propyl-2,3-dimethylimidazolium), 1-부틸-2,3-디메틸이미다졸리움(1-Butyl-2,3-dimethylimidazolium), 1-헥실-2,3-디메틸이미다졸리움(1-Hexyl-2,3-dimethylimidazolium) 중 하나의 양이온과, 비스 (트리풀루오르메틸슬포닐)이미드 (Bis(trifluoromethylsulfonyl)imide), 헥사플로오르포스페이트 (Hexafluorophospate), 메틸슬페이트(Methyl sulfate), 에틸슬페이트(Ethyl sulfate), 테트라플로오르보레이트 (Tetrafluoroborate), 트리플로오르메탄슬페이트 (Trifluoromethanesulfonate), 아오다이드(Iodide), 브로마이드(Bromide), 클로라이드 (Chloride)중 하나의 음이온의 조합으로 만들어지는 이온성 액체 중 적어도 하나를 포함하는 것을 특징으로 하는 나노섬유웹 압정전용량 센서.
- 제1항에 있어서,
상기 나노섬유웹 압정전용량 센서는 0.1% 내지 5% 범위의 커패시턴스-압력 히스테리시스(capacitance-pressure hysteresis)를 갖는 것을 특징으로 하는 나노섬유웹 압정전용량 센서.
- 나노섬유웹을 준비하는 단계;
상기 나노섬유웹의 상부와 하부에 각각 상부전극과 하부전극을 부착하여 샌드위치 구조체를 형성하는 단계;
상기 샌드위치 구조체의 외부에 절연층을 부착하여 캡슐화 하는 단계;
를 포함하는 나노섬유웹 압정전용량 센서 제조 방법.
- 제8항에 있어서,
상기 나노섬유웹을 준비하는 단계는,
제1 용매에 폴리머를 넣고 용해하는 제1 폴리머 용액 제조 단계;
상기 제1 폴리머 용액에 제2 용매를 첨가하는 제2 폴리머 용액 제조 단계;
상기 제2 폴리머 용액에 이온성 액체를 첨가하는 제3 폴리머 용액 제조 단계; 및
상기 제3 폴리머 용액을 전기방사 하여 나노섬유웹을 형성하는 단계를 포함하는 나노섬유웹 압정전용량 센서 제조 방법.
- 제8항에 있어서,
상기 제1 용매는 N,N-디메틸아세트아미드(N,N-dimethylacetamide,DMAc), N,N-디메틸포름아미드(N,N-dimethylformamide, DMF), N-메틸피롤리디논(N-methylpyrrolidinone, NMP) 및 디메틸술폭사이드(dimethyl sulfoxide, DMSO) 중 적어도 하나인 것을 특징으로 하는 나노섬유웹 압정전용량 센서 제조 방법.
- 제8항에 있어서,
상기 제2 용매는 아세톤(acetone), 메틸에틸케톤(methyl ethyl ketone), 메탄올, 에탄올, 프로판올, 부탄올, t-부틸알코올(t-butyl alcohol), 이소프로필알코올(isopropylalcohol, iPA, 2-propanol), 벤질알코올(benzyl alcohol), 테트라히드로푸란(tetrahydrofuran, THF), 에틸아세테이트(ethyl acetate), 부틸아세테이트(butyl acetate), 프로필렌글리콜디아세테이트(propylene glycol diacetate), 프로필렌글리콜메틸에테르아세테이트(propylene glycol methyl ether acetate, PGMEA), 아세토니트릴(acetonitrile), 클로로포름(chloroform), 디클로로메탄(dichloromethane), 트리플루오로아세토나이트릴 (trifluoroacetonitrile), 에틸렌글리콜(ethylene glycol), 피리딘(pyridine) 및 피롤리딘(pyrrolidine) 중 적어도 하나 이상인 것을 특징으로 하는 나노섬유웹 압정전용량 센서 제조 방법.
- 제8항에 있어서,
상기 제2 용매는 상기 전기방사 시 용매의 휘발성을 및 전기방사 안정성을 증가시키는 것을 특징으로 하는 나노섬유웹 압정전용량 센서 제조 방법.
- 제8항에 있어서,
상기 폴리머는 폴리우레탄(polyurethane), 폴리에스테르-폴리우레탄 공중합체(polyester-polyurethane) 및 폴리에테르-폴리우레탄 공중합체(polyether-polyurethane) 중 적어도 하나를 포함하는 것을 특징으로 하는 나노섬유웹 압정전용량 센서 제조 방법.
- 제8항에 있어서,
상기 이온성 액체는 1-메틸-3-메틸이미다졸리움(1-Methyl-3-methylimidazolium), 1-에틸-3-메틸이미다졸리움(1-Ethyl-3-methylimidazolium), 1-프로필-3-메틸이미다졸리움(1-Propyl-3-methylimidazolium), 1-부틸-3-메틸이미다졸리움(1-Butyl-3-methylimidazolium), 1-헥실-3-메틸이미다졸리움(1-Hexyl-3-methylimidazolium), 1-메틸-2,3-디메틸이미다졸리움(1-Methyl-2,3-dimethylimidazolium), 1-에틸-2,3-디메틸이미다졸리움(1-Ethyl-2,3-dimethylimidazolium), 1-프로필-2,3-메틸이미다졸리움(1-Propyl-2,3-dimethylimidazolium), 1-부틸-2,3-디메틸이미다졸리움(1-Butyl-2,3-dimethylimidazolium), 1-헥실-2,3-디메틸이미다졸리움(1-Hexyl-2,3-dimethylimidazolium) 중 하나의 양이온과, 비스 (트리풀루오르메틸슬포닐)이미드 (Bis(trifluoromethylsulfonyl)imide), 헥사플로오르포스페이트 (Hexafluorophospate), 메틸슬페이트(Methyl sulfate), 에틸슬페이트(Ethyl sulfate), 테트라플로오르보레이트 (Tetrafluoroborate), 트리플로오르메탄슬페이트 (Trifluoromethanesulfonate), 아오다이드(Iodide), 브로마이드(Bromide), 클로라이드 (Chloride)중 하나의 음이온의 조합으로 만들어지는 이온성 액체 중 적어도 하나를 포함하는 것을 특징으로 하는 나노섬유웹 압정전용량 센서 제조 방법.
- 제8항 또는 제9항에 있어서,
상기 이온성 액체는 상기 폴리머의 중량 대비 0.1 중량% phr 내지 5.0 중량% phr 이내인 것을 특징으로 하는 나노섬유웹 압정전용량 센서 제조 방법.
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