JP6943951B2 - 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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- JP6943951B2 JP6943951B2 JP2019512628A JP2019512628A JP6943951B2 JP 6943951 B2 JP6943951 B2 JP 6943951B2 JP 2019512628 A JP2019512628 A JP 2019512628A JP 2019512628 A JP2019512628 A JP 2019512628A JP 6943951 B2 JP6943951 B2 JP 6943951B2
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Images
Classifications
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- C08K3/20—Oxides; Hydroxides
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- C—CHEMISTRY; METALLURGY
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
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Description
本出願は、2016年11月21日付韓国特許出願第10−2016−0155255号に基づいた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含まれる。
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およびこれを含む立体形状に関するものである。
MXaOb
磁性体粒子(Fe2O3粒子、Multi−Magnetic Domains、平均粒径約100nm:Field Emission Scanning Electron Microscopeで測定(DLS利用))0.2gを希釈した塩酸を通じて処理し、前記磁性体粒子の表面に反応基を活性化させて表面に正電荷を形成する。ポリアクリル酸水溶液に前記酸処理した磁性体粒子を分散させて約120W超音波で15分間処理する。表面がアミン基で置換されたガラス気泡粒子(平均粒径約18μm)0.3gと前記磁性体粒子を前記水溶液上で反応させて、前記ガラス気泡粒子の表面に磁性体粒子が包み込むように磁性体粒子−ガラス気泡粒子複合体を製造する。
磁性体粒子として、MnOFe2O3粒子(Multi−Magnetic Domains、平均粒径約100nm:Field Emission Scanning Electron Microscopeで測定(DLS利用))を使用したことを除いては実施例1と同じ方法で3Dプリンティング用組成物を製造し、立体形状を形成させた。
磁性体粒子として、強磁性体 (Hard Type)のFe2O3粒子(Single−Magnetic Domain、平均粒径約100nm)、ビスフェノール系エポキシ樹脂および硬化剤をそれぞれ5:95:5の重量比率で混合して樹脂組成物を製造した。
常温で乾燥した磁性体粒子を振動試片磁力計(SQUID−Vibrating Sample Magnetometer、韓国基礎科学支援研究院測定)に入れて外部磁場を±1teslaでのH−Sカーブ(VSMカーブ)を利用して保磁力および飽和磁化値Msを測定した。
実施例および比較例で製造した立体形状に対して磁場の印加直後にサーモカプラーを差し込んで立体形状内部の温度を確認する。
実施例および比較例で組成物を硬化した後、冷却後裏返した時に硬化物が流れるかどうかを確認した後、金属スパチュラで硬化物の押圧の程度を確認して硬化を確認した。前記において、流れ性があって硬化物が押される場合、硬化していないということを確認することができる。
実施例1で製造した磁性体複合体および比較例1での磁性体粒子を、それぞれPDMS(ポリジメチルシロキサン)内で分散させた時、分散直後、30分後および2時間後を観察したのであり、その結果をそれぞれ左側から順に(分散直後、30分後、2時間後)図1に図示した。図1において、左側の瓶が比較例1による結果であり、右側の瓶が実施例1による結果である。図1のように、比較例1による磁性体粒子の場合、明確に相分離が起きることを確認することができた。
Claims (17)
- 2以上の磁区を有し、外部磁場がない時は磁区が不規則に配列され、外部交流磁場によって磁化される磁性体粒子と、前記磁性体粒子に結合した気体含有粒子と、を含み、気体含有粒子の密度は、0.01g/cm 3 〜1.02g/cm 3 である、3Dプリンティング用組成物。
- 磁性体粒子が気体含有粒子を包み込むか、気体含有粒子が磁性体粒子を包み込んで磁性体複合体を形成している、請求項1に記載の3Dプリンティング用組成物。
- 磁性体粒子は純鉄、酸化鉄、フェライト、鉄合金、コバルト合金、ニッケル合金またはマンガン合金を含む、請求項1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に記載の3Dプリンティング用組成物。
- 磁区の平均大きさは、10〜50nmの範囲内にある、請求項1に記載の3Dプリンティング用組成物。
- 気体含有粒子は、中空型の粒子である、請求項1に記載の3Dプリンティング用組成物。
- 気体含有粒子は、無機物、有機物または有機−無機複合物を含む、請求項1に記載の3Dプリンティング用組成物。
- 気体含有粒子の平均大きさは、10nm〜100μmの範囲内である、請求項1に記載の3Dプリンティング用組成物。
- 気体含有粒子は、磁性体粒子100重量部に対して80〜200重量部で含まれる、請求項1に記載の3Dプリンティング用組成物。
- 分散剤をさらに含む、請求項1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に記載の3Dプリンティング用組成物。
- 磁性体粒子が磁性体クラスタを形成する、請求項1に記載の3Dプリンティング用組成物。
- 磁性体粒子は、磁化反転によって振動する、請求項1に記載の3Dプリンティング用組成物。
- 請求項1に記載された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を含む、3Dプリンティング方法。
- 請求項1に記載された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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CN104959594B (zh) * | 2015-07-10 | 2017-02-22 | 北京科技大学 | 一种3d打印用高固相低粘度磁性合金粉的制备方法 |
KR102202909B1 (ko) * | 2016-11-21 | 2021-01-14 | 주식회사 엘지화학 | 3d 프린팅용 조성물 |
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JP2021191639A (ja) * | 2016-11-21 | 2021-12-16 | エルジー・ケム・リミテッド | 3dプリンティング用組成物 |
JP7262878B2 (ja) | 2016-11-21 | 2023-04-24 | エルジー・ケム・リミテッド | 3dプリンティング用組成物 |
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JP2021191639A (ja) | 2021-12-16 |
EP3543287A2 (en) | 2019-09-25 |
US11232891B2 (en) | 2022-01-25 |
KR102202909B1 (ko) | 2021-01-14 |
CN109715720B (zh) | 2021-05-25 |
JP2019536890A (ja) | 2019-12-19 |
US20190318857A1 (en) | 2019-10-17 |
EP3543287A4 (en) | 2020-03-04 |
KR20180057080A (ko) | 2018-05-30 |
EP3543287B1 (en) | 2020-12-30 |
JP7262878B2 (ja) | 2023-04-24 |
WO2018093230A2 (ko) | 2018-05-24 |
CN109715720A (zh) | 2019-05-03 |
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