KR102539484B1 - 고굴곡강도를 가지는 3d 프린트용 세라믹 슬러리 조성물 - Google Patents
고굴곡강도를 가지는 3d 프린트용 세라믹 슬러리 조성물 Download PDFInfo
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- KR102539484B1 KR102539484B1 KR1020200129682A KR20200129682A KR102539484B1 KR 102539484 B1 KR102539484 B1 KR 102539484B1 KR 1020200129682 A KR1020200129682 A KR 1020200129682A KR 20200129682 A KR20200129682 A KR 20200129682A KR 102539484 B1 KR102539484 B1 KR 102539484B1
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- ceramic
- ceramic slurry
- photocurable
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- MDDUHVRJJAFRAU-YZNNVMRBSA-N tert-butyl-[(1r,3s,5z)-3-[tert-butyl(dimethyl)silyl]oxy-5-(2-diphenylphosphorylethylidene)-4-methylidenecyclohexyl]oxy-dimethylsilane Chemical compound C1[C@@H](O[Si](C)(C)C(C)(C)C)C[C@H](O[Si](C)(C)C(C)(C)C)C(=C)\C1=C/CP(=O)(C=1C=CC=CC=1)C1=CC=CC=C1 MDDUHVRJJAFRAU-YZNNVMRBSA-N 0.000 description 1
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Abstract
Description
도 2는 본 발명의 일실시예에 따른 조성물이 사용되는 SLA/DLP 방식의 3D 프린트를 개략적으로 도시한 것이다.
제조예1 | 제조예2 | 제조예3 | 제조예4 | 제조예5 | 제조예6 | 제조예7 | |
3mol%이트리아 안정화 지르코니아 |
85 | 75 | 60 | 50 | 50 | ||
8mol%이트리아 안정화 지르코니아 |
75 | ||||||
알루미나 | 75 | 25 | |||||
실리카 | 25 | ||||||
장파장 개시제: omnirad 819(Bis(2,4,6-trimethylbenzoyl)-phenylphosphineoxide) | 0.2 | 0.3 | 0.5 | 0.3 | 0.3 | 0.3 | 0.3 |
THFA (Tetrahydrofufuryl Acrylate 1관능 모노머) |
8.8 | 14.8 | 23.6 | 14.8 | 14.8 | 14.8 | 14.8 |
우레탄 아크릴레이트 | 3.5 | 5.8 | 9.3 | 5.8 | 5.8 | 5.8 | 5.8 |
인산변성 아크릴레이트 | 1.5 | 2.5 | 4 | 2.5 | 2.5 | 2.5 | 2.5 |
분산제 | 1.0 | 1.6 | 2.6 | 1.6 | 1.6 | 1.6 | 1.6 |
굴곡강도(MPa) | 780 | 510 | 230 | 170 | 340 | 390 | 240 |
제조예2 | 제조예8 | 제조예9 | 제조예10 | 제조예11 | |
3mol%이트리아 안정화 지르코니아 |
75 | 75 | 75 | 75 | 75 |
장파장 개시제: omnirad 819 |
0.3 | 0.02 | 1.0 | 1.5 | |
단파장 개시제: omnirad 184 (1-hydroxycyclohexyl phenyl ketone) |
0.3 | 1.5 | |||
THFA | 14.8 | 15.08 | 14.1 | 14.8 | 14.8 |
우레탄 아크릴레이트 | 5.8 | 5.8 | 5.8 | 5.8 | 5.8 |
인산변성 아크릴레이트 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 |
분산제 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 |
10㎛ 적층시 경화도 | OK | OK | OK | OK | OK |
50㎛ 적층시 경화도 | OK | OK | OK | 미경화 | OK |
굴곡강도(MPa) | 510 | 220 | 360 | 270 | 350 |
제조예2 | 제조예12 | 제조예13 | 제조예14 | |
3mol%이트리아 안정화 지르코니아 |
75 | 75 | 75 | 75 |
omnirad 819 | 0.3 | 0.3 | 0.3 | 0.3 |
THFA (Tetrahydrofufuryl Acrylate 1관능 모노머) | 14.8 | |||
HDDA (1,6 Hexanediol diacrylate 2관능 모노머) | 14.8 | |||
TMPTA (Tetrahydrofufuryl Acrylate 3관능 모노머) | 14.8 | |||
DPHA (Tetrahydrofufuryl Acrylate 6관능 모노머) | 14.8 | |||
우레탄 아크릴레이트 | 5.8 | 5.8 | 5.8 | 5.8 |
인산변성 아크릴레이트 | 2.5 | 2.5 | 2.5 | 2.5 |
분산제 | 1.6 | 1.6 | 1.6 | 1.6 |
굴곡강도(MPa) | 510 | 320 | 110 | 60 |
제조예2 | 제조예15 | 제조예16 | 제조예17 | 제조예19 | |
3mol%이트리아 안정화 지르코니아 |
75 | 75 | 75 | 75 | 75 |
omnirad 819 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
THFA | 14.8 | 14.8 | 14.8 | 14.8 | 14.8 |
우레탄 아크릴레이트 | 5.8 | 5.8 | 5.8 | 3.3 | 8.3 |
인산변성 아크릴레이트 | 2.5 | ||||
카르복실산 변성 아크릴레이트 | 2.5 | 2.5 | |||
에폭시 아크릴레이트 | 2.5 | 2.5 | |||
분산제 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 |
플랫폼 접착력 | OK | OK | OK | OK | NG |
굴곡강도(MPa) | 510 | 540 | 500 | 570 | - |
제조예20 | 제조예21 | 제조예22 | 제조예23 | 제조예24 | 제조예25 | 제조예26 | |
3mol%이트리아 안정화 지르코니아 |
80 | 80 | 80 | 80 | 80 | 80 | 80 |
omnirad 819 | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 |
THFA | 12.75 | 12.75 | 12.75 | 12.75 | 12.75 | 12.75 | 12.75 |
우레탄 아크릴레이트 | 3.7 | 3.7 | 3.2 | 3.2 | 2.7 | 2.2 | |
인산변성 아크릴레이트 | 1.5 | 2.0 | 2.6 | ||||
카르복실산 변성 아크릴레이트 | 1.5 | 2.0 | 2.6 | ||||
에폭시 아크릴레이트 | 2.5 | 3.0 | |||||
분산제 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 |
플랫폼 접착력 | NG | NG | OK | OK | NG | OK | OK |
굴곡강도(MPa) | - | - | 610 | 600 | 580 | 650 |
120: 수조부
130: 광조사부
131: 광원
132: 반사판
Claims (17)
- 세라믹 분말, 광경화성 바인더, 분산제 및 광경화 개시제를 포함하고,
상기 광경화성 바인더는 광경화성 모노머 및 광경화성 올리고머의 혼합물이며, 관능기(functional group)를 2개 이하로 포함하고,
상기 광경화성 올리고머는 산성기를 포함한 올리고머를 포함하되,
상기 산성기를 포함한 올리고머는 상기 광경화성 바인더를 기준으로 8.5wt% 이상 100wt% 미만인 세라믹 슬러리 조성물. - 제 1 항에 있어서,
상기 세라믹 분말은 수산화인회석(Hydroxy Apatite, HA), 알루미나(Alumina), 지르코니아(Zirconia), 실리카(Silica) 및 이들의 혼합물로 이루어지는 군에서 선택되는 1종 이상을 포함하는 세라믹 슬러리 조성물. - 제 1 항에 있어서,
상기 세라믹 분말은 세라믹 분말 전체 조성을 기준으로, 2 내지 8 mol%의 이트리아(Y)로 안정화시킨 것인 세라믹 슬러리 조성물. - 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 제 1 항에 있어서,
상기 광경화성 바인더는 조성물 전체 중량을 기준으로 10 내지 40 wt%인 세라믹 슬러리 조성물. - 제 1 항에 있어서,
상기 분산제는 산성 그룹을 가지는 공중합체 화합물 및 인산기 및 아민기를 가지는 폴리에스테르/폴리에테르(polyester/polyether)계 화합물로 이루어지는 군에서 선택되는 1종 이상인 세라믹 슬러리 조성물. - 제 1 항에 있어서,
상기 분산제는 조성물 전체 중량을 기준으로 1 내지 5 wt%인 세라믹 슬러리 조성물. - 제 1 항에 있어서,
상기 슬러리 조성물이 레이어(layer) 당 15 ㎛이하 두께의 박막을 적층하기 위한 것인 경우, 광경화 개시제는 360 ㎚ 미만의 파장을 가지는 단파장 개시제, 중파장 개시제 또는 이들의 혼합물 중 선택되는 1종 이상을 포함하는 세라믹 슬러리 조성물. - 제 1 항에 있어서,
상기 슬러리 조성물이 레이어(layer) 당 15 ㎛초과 두께의 박막을 적층하기 위한 것인 경우, 광경화 개시제는 360 ㎚ 이상의 파장을 가지는 장파장 개시제를 포함하는 세라믹 슬러리 조성물. - 제 1 항에 있어서,
상기 광경화 개시제는 조성물 전체 중량을 기준으로 0.01 내지 1 wt%인 세라믹 슬러리 조성물. - 제 1 항의 세라믹 슬러리 조성물을 이용하여 제조된 세라믹 소결체로써,
상기 세라믹 소결체는 상기 세라믹 슬러리 조성물을 광경화 하여 생성된 경화체를 탈지 및 소결 처리함으로써 생성되고,
상기 세라믹 소결체의 굴곡강도는 200 내지 1,000 MPa 범위 내인 세라믹 소결체. - 제 1 항의 세라믹 슬러리 조성물을 이용하여 제조된 3D 프린터 출력물.
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