JP6641464B2 - 3dプリンティング用組成物 - Google Patents
3dプリンティング用組成物 Download PDFInfo
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- JP6641464B2 JP6641464B2 JP2018515273A JP2018515273A JP6641464B2 JP 6641464 B2 JP6641464 B2 JP 6641464B2 JP 2018515273 A JP2018515273 A JP 2018515273A JP 2018515273 A JP2018515273 A JP 2018515273A JP 6641464 B2 JP6641464 B2 JP 6641464B2
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
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Description
本出願は、2015年09月25日に出願された大韓民国特許出願第10−2015−0136969号に基づく優先権の利益を主張し、該当韓国特許出願の文献に開示されたすべての内容は本明細書の一部として組み入れるものとする。
本出願は、3Dプリンティング用組成物、これを利用した3Dプリンティング方法及びこれを含む立体形状に関する。
磁性体粒子として軟磁性体(Soft Type)であるFeOFe2O3粒子(Multi−Magnetic Domains、平均粒径約100nm:Field Emission Scanning Electron Microscopeで測定(DLS利用))の表面に、セラミック粒子としてSiO2(粒径約10nm)を10nmの厚さで表面処理した構造のナノ磁性体複合体1g、約1〜3μmの粒径を有するアルミナ粒子10g、ジルコニウム粒子2g、シリカ粒子5g、ケイ酸ナトリウム(sodium silicate)4.5g、水14g及び熱酸発生剤(TAG2678)0.2gを含むシリカゾルゲル溶液組成物を製造した。
ケイ酸ナトリウムの代わりにオルトケイ酸テトラエチル(Tetraethyl orthosilicate)を6g添加したこと以外は、実施例1と同一の方法で組成物を製造し、パターンまたは立体形状を形成した。
ケイ酸ナトリウムの代わりにメタケイ酸ナトリウムを5g添加したこと以外は、実施例1と同一の方法で組成物を製造し、パターンまたは立体形状を形成した。
熱酸発生剤の代わりに熱塩基発生剤としてアムモニウム塩誘導体を添加したこと以外は、実施例1と同一の方法で組成物を製造し、パターンまたは立体形状を形成した。
熱酸発生剤の代わりに熱塩基発生剤としてアムモニウム塩誘導体を添加したこと以外は、実施例2と同一の方法で組成物を製造し、パターンまたは立体形状を形成した。
磁性体粒子として強磁性体(Hard Type)であるFeOFe2O3粒子(Single−Magnetic Domain、平均粒径約100nm)を使用したこと以外は、実施例1と同一の方法で組成物を製造し、パターンまたは立体形状を形成した。
組成物の硬化後、硬化物が冷却された後に覆したときに流れるか否かを確認した後、金属スパチュラにより硬化物の押され程度を確認することで硬化を確認した。前記で流れ性があって硬化物が押される場合、硬化されなかったことを確認し得る。
Claims (23)
- セラミック粒子及び2以上の磁区を有し、外部磁場のないときは磁区が不規則に配列されて外部磁場により磁化される磁性体粒子を含み、
磁性体粒子がセラミック粒子を取り囲むか、セラミック粒子が磁性体粒子を取り囲んで磁性体複合体を形成し、
第2セラミック粒子をさらに含む3Dプリンティング用組成物。 - 磁性体複合体及び第2セラミック粒子は、各々1〜20重量部及び20〜95重量部の割合で含まれる請求項1に記載の3Dプリンティング用組成物。
- セラミック粒子は、シリコン(Si)、アルミニウム(Al)、チタン(Ti)及びジルコニウム(Zr)からなる群より選択された1以上の酸化物、窒化物または炭化物を含む請求項1または2に記載の3Dプリンティング用組成物。
- セラミック粒子の平均粒径は、0.1μm〜5μmの範囲内にある請求項1から3のいずれか一項に記載の3Dプリンティング用組成物。
- 磁性体粒子は、保磁力が1〜200kOeの範囲内にある請求項1から4のいずれか一項に記載の3Dプリンティング用組成物。
- 磁性体粒子は、25℃で飽和磁化値が20〜150emu/gの範囲内にある請求項1から5のいずれか一項に記載の3Dプリンティング用組成物。
- 磁性体粒子の平均粒径は、20〜300nmの範囲内にある請求項1から6のいずれか一項に記載の3Dプリンティング用組成物。
- 磁区の平均サイズは、10〜50nmの範囲内にある請求項1から7のいずれか一項に記載の3Dプリンティング用組成物。
- Mは、Fe、Mn、Mg、Ca、Zn、Cu、Co、Sr、Si、Ni、Ba、Cs、K、Ra、Rb、Be、Li、Y、Bまたはこれらの酸化物である請求項9に記載の3Dプリンティング用組成物。
- 磁性体粒子は、化学式1の化合物の混合物または化学式1の化合物に無機物がドーピングされた化合物を含む請求項9または10に記載の3Dプリンティング用組成物。
- 磁性体粒子は、磁性転換によって振動する請求項1から11のいずれか一項に記載の3Dプリンティング用組成物。
- 熱硬化性樹脂をさらに含む請求項1から12のいずれか一項に記載の3Dプリンティング用組成物。
- 熱硬化性樹脂は、少なくとも一つ以上の熱硬化性官能基を含む請求項13に記載の3Dプリンティング用組成物。
- 熱硬化剤をさらに含む請求項1から14のいずれか一項に記載の3Dプリンティング用組成物。
- 水系またはアルコール上で溶解可能な樹脂をさらに含む請求項1から15のいずれか一項に記載の3Dプリンティング用組成物。
- 熱酸発生剤または熱塩基発生剤をさらに含む請求項1から16のいずれか一項に記載の3Dプリンティング用組成物。
- 請求項1から17のいずれか一項に記載の3Dプリンティング用組成物を塗布して立体形状を形成する段階と、
磁場の印加により磁性体粒子から生じた熱を利用して前記3Dプリンティング用組成物を硬化する段階と、を含む3Dプリンティング方法。 - 塗布された組成物に磁場を印加する段階をさらに含む請求項18に記載の3Dプリンティング方法。
- 磁場を印加する段階は、100kHz〜1GHzの周波数で50A〜500Aの電流で20秒〜60分間磁場をかける請求項19に記載の3Dプリンティング方法。
- 磁場を印加する段階は、少なくとも2段階以上のマルチプロファイル方式を含む請求項19に記載の3Dプリンティング方法。
- マルチプロファイル方式は、100kHz〜1GHzの周波数で、10A〜80Aの電流で20秒〜10分間磁場を印加する第1段階、80A〜130Aの電流で20秒〜10分間磁場を印加する第2段階及び150A〜500Aの電流で5秒〜5分間磁場を印加する第3段階を含む請求項21に記載の3Dプリンティング方法。
- 請求項1から17のいずれか一項に記載の3Dプリンティング用組成物の硬化物を含む立体形状。
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US10892075B2 (en) * | 2015-09-25 | 2021-01-12 | Lg Chem, Ltd. | Composition for 3D printing |
EP3354684B1 (en) * | 2015-09-25 | 2021-11-17 | LG Chem, Ltd. | Composition for 3d printing |
EP3412715B1 (en) * | 2016-02-05 | 2023-05-24 | Lg Chem, Ltd. | Composition for 3d printing |
WO2018084666A1 (ko) * | 2016-11-04 | 2018-05-11 | 주식회사 엘지화학 | 열경화성 조성물 |
US20190084194A1 (en) * | 2017-03-15 | 2019-03-21 | John P. Keady | Structure formation using electromagnetic fields |
EP3747940A4 (en) | 2018-02-02 | 2021-03-24 | Lg Chem, Ltd. | HARDENABLE COMPOSITION |
US20190333696A1 (en) * | 2018-04-27 | 2019-10-31 | GM Global Technology Operations LLC | Near net shape manufacturing of magnets with photosensitive slurry |
US20220331865A1 (en) * | 2019-11-08 | 2022-10-20 | Hewlett-Packard Development Company, L.P. | Three-dimensional printing with supportive coating agents |
EP3875185A1 (de) * | 2020-03-05 | 2021-09-08 | Evonik Operations GmbH | Selective superparamagnetic sintering und eine dafür geeignete tinte |
US20230260687A1 (en) * | 2022-02-14 | 2023-08-17 | General Electric Company | Dual phase soft magnetic particle combinations, components and manufacturing methods |
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CN107614244B (zh) * | 2015-05-07 | 2020-01-17 | 株式会社Lg化学 | 3d打印机 |
US10892075B2 (en) * | 2015-09-25 | 2021-01-12 | Lg Chem, Ltd. | Composition for 3D printing |
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EP3354376B1 (en) | 2021-04-07 |
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US11476019B2 (en) | 2022-10-18 |
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