KR20160079195A - 전도성이 향상된 복합재 및 이의 제조방법 - Google Patents
전도성이 향상된 복합재 및 이의 제조방법 Download PDFInfo
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- KR20160079195A KR20160079195A KR1020140190166A KR20140190166A KR20160079195A KR 20160079195 A KR20160079195 A KR 20160079195A KR 1020140190166 A KR1020140190166 A KR 1020140190166A KR 20140190166 A KR20140190166 A KR 20140190166A KR 20160079195 A KR20160079195 A KR 20160079195A
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- composite material
- carbon nanotubes
- extruder
- thermoplastic polymer
- resin
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- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
- H01B1/24—Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon or silicon
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29B11/00—Making preforms
- B29B11/06—Making preforms by moulding the material
- B29B11/10—Extrusion moulding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
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Abstract
[수학식1]
-3x + 11 ≤ Log R ≤ -3x + 16
상기 식에서 x는 복합재에 있어서, 열가소성 고분자 100중량부에 대한 탄소나노튜브의 중량부이고, R은 상기 복합재의 표면저항값(ohm/sq)을 나타낸다.
본 발명에 따른 복합재는 고분자 자체의 우수한 열적 특성 및 물성은 그대로 유지하면서도 탄소나노튜브의 분산성이 향상되어 우수한 전도성을 나타낸다.
Description
인장강도(MPa) | 인장탄성율(GPa) | 굴곡탄성율(GPa) | 표면저항(ohm/sq.) | |
실시예1 | 62 | 2.3 | 2.7 | 1.0E+11 |
실시예2 | 62 | 2.5 | 2.7 | 1.0E+09 |
실시예3 | 64 | 2.7 | 2.8 | 1.0E+05 |
비교예1 | 61 | 2 | 2.5 | N/A |
비교예2 | 60 | 2.1 | 2.5 | N/A |
비교예3 | 61 | 2.3 | 2.6 | N/A |
비교예4 | 62 | 2.5 | 2.7 | 1.0E+11 |
비교예5 | 63 | 2.6 | 2.9 | 1.0E+07 |
Claims (13)
- 열가소성 고분자와 탄소나노튜브를 포함하며, 하기 관계식을 만족하는 전도성을 갖는 복합재:
[수학식1]
-3x + 11 ≤ Log R ≤ -3x + 16
상기 식에서 x는 복합재에 있어서, 열가소성 고분자 100중량부에 대한 탄소나노튜브의 중량부이고, R은 상기 복합재의 표면저항값(ohm/sq)을 나타낸다. - 제 1항에 있어서,
상기 탄소나노튜브의 함량이 상기 열가소성 고분자 100 중량부를 기준으로 0.5 내지 10 중량부인 복합재. - 열가소성 고분자 및 탄소나노튜브를 혼합하는 단계; 및
상기 혼합물을 스크류가 3개 이상인 다축 압출기로 용융 혼련 및 압출하는 단계;
를 포함하는 제1항의 복합재의 제조방법. - 제 3항에 있어서,
상기 압출기가 3 내지 32개의 스크류 축을 포함하는 다축 압출기인 복합재의 제조방법. - 제 3항에 있어서,
상기 압출기가 8 내지 20개의 스크류 축을 포함하는 다축 압출기인 복합재의 제조방법. - 제 3항에 있어서,
상기 복합재에서 탄소나노튜브의 함량이 상기 열가소성 고분자 100 중량부를 기준으로 0.5 내지 10 중량부로 포함되는 것인 복합재의 제조방법. - 제 3항에 있어서,
상기 압출기의 스크류 직경이 5 내지 50 mm인 복합재의 제조방법. - 제 3항에 있어서,
상기 압출기의 L/D가 30 내지 80인 복합재의 제조방법. - 제 3항에 있어서,
상기 탄소나노튜브의 평균 길이가 1㎛ 내지 1,000㎛이고, 순도가 85%이상인 복합재의 제조방법. - 제 3항에 있어서,
상기 열가소성 고분자는 용융지수가 0.5 내지 100 g/min인 것인 복합재의 제조방법. - 제 3항에 있어서,
상기 혼합물을 스크류 회전 속도 100 내지 1000 rpm 및 체류시간 20 내지 90 sec의 조건 하에서 용융 압출하는 것인 복합재의 제조방법. - 제 3항에 있어서,
상기 용융 혼련은 160 내지 500 ℃의 온도조건에서 실시되는 것인 복합재의 제조방법. - 제 3항 내지 제 12항 중 어느 한 항에 의한 제조방법에 의하여 제조된 복합재.
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WO2024005669A1 (ru) * | 2022-06-27 | 2024-01-04 | Общество С Ограниченной Ответственностью "Ампертекс" | Электропроводящее композитное волокно и способ его получения и применения |
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