KR101323303B1 - 다공성 복합화합물 및 그 제조방법, 다공성 복합화합물을 함유한 시멘트 조성물 - Google Patents
다공성 복합화합물 및 그 제조방법, 다공성 복합화합물을 함유한 시멘트 조성물 Download PDFInfo
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Abstract
Description
도 2는 본 발명의 일 실시예에 따른 다공성 복합화합물을 SEM(Scanning electron microscope, Hitachi S-4700) 및 TEM(Transmission electron microscope, JEM 2000 FXII, JEOL)으로 촬영한 사진이다.
도 3은 본 발명의 일 실시예에 따른 다공성 복합화합물과 비교예의 결정상을 결정상을 X-선 회절패턴으로 분석하여 나타낸 그래프이다.
도 4는 비교예와 본 발명의 일 실시예에 따른 다공성 복합화합물의 기압에 따른 흡착된 질소량을 측정한 결과를 나타낸 그래프이다.
도 5는 본 발명의 일 실시예에 따른 다공성 복합화합물과 비교예의 아세트알데히드 분해 활성을 측정한 결과를 나타낸 그래프이다.
도 6은 본 발명의 일 실시예에 따른 다공성 복합화합물을 함유한 단열재를 가열한 후 온도 변화를 촬영한 사진이다.
도 7은 NOx 제거 시험 평가 장치를 개략적으로 도시한 도면이다.
도 8은 본 발명의 일 실시예에 따른 다공성 복합화합물이 NOx를 제거한 결과를 나타낸 도이다.
도 9는 비교예가 NOx를 제거한 결과를 나타낸 도이다.
도 10은 본 발명의 일 실시예에 따른 콘크리트가 NOx를 제거한 결과를 나타낸 도이다.
| 성분 | 비교예 | 실시예1 | ||
| 중량% | 원자% | 중량% | 원자% | |
| C K | 16.0 | 25.5 | 17.7 | 25.7 |
| O K | 52.0 | 61.8 | 47.7 | 52.5 |
| Na K | - | - | 0.2 | 0.1 |
| Si K | - | - | 34.2 | 21.6 |
| S K | - | - | - | - |
| Ti K | 32.0 | 12.7 | 0.2 | 0.1 |
| 총 합계 | 100.0 | 100.0 | 100.0 | 100.0 |
| 표면적m2/g | 평균 세공크기(nm) | |
| 비교예 | 55 | 8 |
| 실시예 1 | 408 | 4 |
| 실시예 2 | 406 | 4 |
| 실시예 3 | 350 | 4 |
| 실시예 4 | 141 | 4 |
| 전환율 | 광효율 | |||
| 분말(ISO 22197-1, 10W/m2) | NO | NOx | NO | NOx |
| 비교예 | -41.43 | -14.02 | 0.593 | 0.200 |
| 실시예 1 | -51.22 | -21.55 | 0.732 | 0.308 |
| 전환율 | 광효율 | ||||
| NO | NOx | NO | NOx | ||
| 시멘트 조성물(4.2W/m2) | 1사이클 | -12.18 | -1.29 | 0.428 | 0.046 |
| 2사이클 | -11.22 | -3.27 | 0.393 | 0.116 | |
Claims (20)
- (a)금속산화물에 물유리(Na2SiO3), 포타슘실리케이트, 칼슘실리케이트 및 실리카 졸 중 어느 하나를 혼합하여 졸상의 금속산화물의 혼합물을 제조하는 단계;
(b)상기 금속산화물의 혼합물에 산도가 pH 1~10인 산용액을 첨가하여 겔화시켜 금속산화물겔을 형성하는 단계;
(c)상기 금속산화물겔을 표면 개질시키는 단계;
(d)상기 금속산화물겔을 건조시켜 상기 금속산화물 주위에 실리카 에어로겔이 피복된 다공성 복합화합물을 형성하는 단계; 및
(e)상기 다공성 복합화합물을 소성하는 단계;를 포함하는 다공성 복합화합물의 제조방법. - 제 1항에 있어서, 상기 (d) 단계에서 형성되는 다공성 복합화합물은 3차원 그물구조를 갖는 것을 특징으로 하는 다공성 복합화합물의 제조방법.
- 제 1항에 있어서, 상기 금속산화물은 광촉매 활성을 갖는 산화물인 것을 특징으로 하는 다공성 복합화합물의 제조방법.
- 제 3항에 있어서, 상기 금속산화물은 이산화티탄(TiO2)인 것을 특징으로 하는 다공성 복합화합물의 제조방법.
- 제 1항에 있어서, 상기 (a)단계에서 상기 금속 산화물과 상기 물유리, 포타슘실리케이트, 칼슘실리케이트 및 실리카 졸 중 어느 하나는, 상기 금속산화물과 상기 물유리, 포타슘실리케이트, 칼슘실리케이트 및 실리카 졸 중 어느 하나에 함유되는 실리카의 중량비가 0.01~10:1을 가지도록 혼합되는 것을 특징으로 하는 다공성 복합화합물의 제조방법.
- 제 1항에 있어서, 상기 (a)단계에서 상기 금속산화물를 개질제로 처리하는 단계를 더 포함하는 다공성 복합화합물의 제조방법.
- 삭제
- 제 1항에 있어서, 상기 (c)단계의 표면개질은 상기 금속산화물겔을 유기용매에 넣고 유기실란을 첨가하여 이루어지는 것인 다공성 복합화합물의 제조방법.
- 제 8항에 있어서, 상기 유기실란은 트리메틸클로로실란, 헥사메틸디실라잔, 메틸트리메톡시실란 및 트리메틸에톡시실란으로 이루어진 군에서 선택되는 것인 다공성 복합화합물의 제조방법.
- 제 1항에 있어서, 상기 (d)단계의 금속산화물겔의 건조는 60~200℃에서 행하여지는 것인 다공성 복합화합물의 제조방법.
- 제 1항에 있어서, 상기 (e) 단계는, 소성 온도를 조절하여 상기 다공성 복합화합물의 친수성과 소수성을 조절하는 단계를 더 포함하는 것을 특징으로 하는 다공성 복합화합물 제조 방법.
- 제11항에 있어서, 상기 다공성 화합물은 소수성을 갖는 것을 특징으로 하는 다공성 복합화합물의 제조방법.
- 제1항 내지 제6항 및 제8항 내지 제12항 중 어느 한 항에 기재된 제조방법으로 제조되는 다공성 복합화합물.
- 제 13항에 있어서, 상기 다공성 복합화합물은 기공율이 80~99%인 다공성 복합화합물.
- 제 13항에 있어서, 상기 다공성 화합물은 비표면적이 300~1,000m2/g인 다공성 복합화합물.
- 다공성 복합화합물을 함유하는 시멘트 조성물로서,
상기 다공성 복합화합물은 제13항에 기재된 다공성 복합화합물인 것을 특징으로 하는 시멘트 조성물. - 제 16항에 있어서, 상기 다공성 복합화합물은 상기 시멘트 조성물 총 중량에 대해 0.1~10중량%로 함유되는 것을 특징으로 하는 시멘트 조성물.
- 제 16항에 있어서, 상기 다공성 복합화합물은 표면 소수성을 갖는 것을 특징으로 하는 시멘트 조성물.
- 다공성 복합 화합물을 함유하는 시멘트 조성물을 사용하여 제조되는 콘크리트 구조물로,
상기 다공성 복합 화합물은 제 13항에 기재된 다공성 복합 화합물인 것을 특징으로 하는 콘크리트 구조물. - 다공성 복합 화합물을 함유하는 시멘트 조성물을 사용하여 제조되는 인터록킹 블록으로,
상기 다공성 복합 화합물은 제 13항에 기재된 다공성 복합 화합물인 것을 특징으로 하는 인터록킹 블록.
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| PCT/KR2012/002462 WO2013118940A1 (en) | 2012-02-08 | 2012-04-02 | Porous composite, preparation method thereof, and cement composition containing porous composite |
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| WO2016195379A1 (ko) * | 2015-06-01 | 2016-12-08 | 주식회사 엘지화학 | 금속산화물-실리카 복합 에어로겔의 제조방법 및 이를 이용하여 제조된 금속산화물-실리카 복합 에어로겔 |
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| US10941043B2 (en) | 2015-06-01 | 2021-03-09 | Lg Chem, Ltd. | Method of preparing metal oxide-silica composite aerogel and metal oxide-silica composite aerogel prepared by using the same |
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| KR102137840B1 (ko) | 2019-11-29 | 2020-07-28 | 한국건설기술연구원 | 화재저항성능과 단열성능이 개선된 나노포러스실리카-기반 시멘트 마감재 및 그 제조 방법 |
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