KR20220107663A - 다공체를 이용한 상전이물질 복합체 제조방법 - Google Patents
다공체를 이용한 상전이물질 복합체 제조방법 Download PDFInfo
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- KR20220107663A KR20220107663A KR1020210010550A KR20210010550A KR20220107663A KR 20220107663 A KR20220107663 A KR 20220107663A KR 1020210010550 A KR1020210010550 A KR 1020210010550A KR 20210010550 A KR20210010550 A KR 20210010550A KR 20220107663 A KR20220107663 A KR 20220107663A
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- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/02—Materials undergoing a change of physical state when used
- C09K5/06—Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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Abstract
또한, 본 발명의 다공체를 이용한 상전이물질 복합체 제조방법은 상전이할 공간을 충분히 확보할 수 있어 안정성이 우수하고, 고분자 첨가제로 사용 시 가공 전단력에 의해서도 파괴되지 않는 효과가 있다.
Description
도 2는 본 발명의 실시예 1에 따른 상전이물질 복합체의 DSC 측정 곡선 그래프이다.
도 3은 본 발명의 비교예 1에 따른 상전이물질 복합체의 DSC 측정 곡선 그래프이다.
도 4는 본 발명의 바람직한 일실시예에 따른 상전이물질 복합체의 외관 관측 이미지이다.
도 5는 본 발명의 바람직한 일실시예에 따른 상전이물질 복합체의 표면 상전이물질 잔유량 관측 이미지이다.
도 6은 본 발명의 비교예 1에 따른 따른 상전이물질 복합체의 표면 상전이물질 잔유량 관측 이미지이다.
실시예 1 | 실시예 2 | 실시예 3 | 실시예 4 | 비교예 1 | ||
다공체 (합성 실리카) |
100 | 100 | 100 | 100 | 100 | |
상전이물질 | 300 | 300 | 250 | 250 | 300 | |
슈퍼믹서 |
교반 속도 (rpm) |
200 | 400 | 200 | 300 | - |
교반 시간 (분) |
11 | 8 | 16 | 11 | - | |
교반 시간 (분) |
10 | |||||
감압 시간(분) | - | - | - | - | 45 | |
Sieve 분리 (분) |
- | - | - | - | 180 | |
고압 프레스 압력 범위 (kg/cm2) |
150 | 150 | 150 | 120 | 120 |
실시예 1 | 실시예 2 | 실시예 3 | 실시예 4 | 비교예 1 | |
상전이에너지(J/g) | 81.72 | 81.03 | 81.77 | 81.42 | 82.64 |
실시예 1 | 실시예 2 | 실시예 3 | 실시예 4 | 비교예 1 | |
외관 평가 | 복합체 표면에 상전이물질의 유출이 전혀 발견되지 않음 | 복합체 표면에 상전이물질의 유출이 전혀 발견되지 않음 | 복합체 표면에 상전이물질의 유출이 전혀 발견되지 않음 | 복합체 표면에 상전이물질의 유출이 전혀 발견되지 않음 | 복합체 표면에 상전이물질의 유출이 전혀 발견되지 않음 |
Claims (9)
- (1) 다공체에 대하여 상전이물질을 과량으로 첨가 및 교반하여 상기 상전이물질이 상기 다공체의 공극에 함침된 프리(pre)-상전이물질 복합체를 형성하는 단계;
(2) 고압 프레스를 통해 다공체의 공극에 미함침된 상전이물질을 제거하여 압착된 상전이물질 복합체의 집합체를 분리하는 단계 및
(3) 상기 압착된 상전이물질 복합체의 집합체를 분쇄하여 상전이물질 복합체를 수득하는 단계를 포함하며,
공정 전단계에 있어서 감압 공정을 수행하지 않는 상전이물질 복합체 제조방법.
- 제1항에 있어서,
상기 (1) 단계를 수행한 이후 별도의 감압 공정 내지 거름 공정을 수행하지 않는 것을 특징으로 하는 상전이 물질 복합체 제조방법.
- 제1항에 있어서,
상기 상전이물질은 녹는점이 15 ~ 45℃인 상전이물질을 사용하는 것을 특징으로 하는 상전이 물질 복합체 제조방법.
- 제1항에 있어서,
상기 다공체는 실리카, 제올라이트, 벤토나이트, 활성탄소, 알루미나, 탄화규소, 지르코니아 및 플라이애쉬로 이루어지는 군으로부터 선택되는 어느 하나 이상인 것을 특징으로 하는 상전이물질 복합체 제조방법.
- 제1항에 있어서,
상기 (1) 단계의 교반은 고속 교반으로 수행되며, 상기 고속 교반의 교반 속도는 200 ~ 1,000rpm인 것을 특징으로 하는 상전이 물질 복합체 제조방법.
- 제1항에 있어서,
상기 (1) 단계는 다공체 100 중량부에 대하여 상전이물질을 250 ~ 400 중량부로 첨가 및 교반하는 것을 특징으로 하는 상전이 물질 복합체 제조방법.
- 제1항에 있어서,
상기 (2) 단계의 고압 프레스는 100 ~ 180kg/cm2의 압력 범위 하에서 수행되는 것을 특징으로 하는 상전이 물질 복합체 제조방법.
- 제1항에 있어서,
상기 (3) 단계에서 분쇄 이후 코팅을 수행하고, 상기 코팅은 혼합에 의한 표면 코팅 및 스프레이 코팅으로 이루어진 군으로부터 선택되는 어느 하나로 수행되는 것을 특징으로 하는 상전이물질 복합체 제조방법.
- 제1항 내지 제8항 중 어느 한 항의 제조방법으로부터 제조된 상전이물질 복합체.
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