JP2019502806A - 複合粒状構築材料 - Google Patents
複合粒状構築材料 Download PDFInfo
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- JP2019502806A JP2019502806A JP2018536476A JP2018536476A JP2019502806A JP 2019502806 A JP2019502806 A JP 2019502806A JP 2018536476 A JP2018536476 A JP 2018536476A JP 2018536476 A JP2018536476 A JP 2018536476A JP 2019502806 A JP2019502806 A JP 2019502806A
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Abstract
Description
例1−複合粒状構築材料(マイカ付きナイロン)の調製
2:1未満の平均アスペクト比(例えば約1:1)と約50μmの平均粒径を有するナイロン粒子(フランス国コロンブのArkema社からのPA−12)が、最長アスペクト比に沿って約15μmから20μmと見積もられる平均粒径を有する約7.5重量%(全粒子含有量に基づく)のMagnapearl登録商標1000マイカ粒子(BASF社からの板状構造)と混合されて、均一な混合物とされた。これに対してm−クレゾールがポリマー膨潤性溶媒として、組成物の約1.5重量%まで滴下により添加された。ナイロン粒子は膨潤するようにされた。SEM下で観察したところ、ナイロン粒子の表面上に被覆されたマイカは、約20から35%と見積もられる表面積に存在していたことが判明した。幾つかのマイカ粒子はナイロン粒子と同程度の大きさであったことから、特にそれらの僅かな大粒子はナイロン粒子の表面に付着しなかった。
例2−複合粒状構築材料(マイカ付きナイロン)の調製
最長アスペクト比に沿って約3μmから5μmと見積もられる平均粒径を有するMagnapearl登録商標3000マイカ粒子(BASFから入手可能な板状構造)の混合物が、ポリマー膨潤性溶媒であるm−クレゾールと混合された。次いで、2:1未満の平均アスペクト比(例えば約1:1)と約50μmの平均粒径を有するナイロン粒子(フランス国コロンブのArkema社からのPA−12)が、マイカが約7.5重量%(全粒子含有量に基づく)で存在するようにして、溶媒/マイカ組成物と混合された。組成物の全重量を基礎として、添加された溶媒の濃度は約1.5重量%であった。マイカ粒子が表面に付着されうるように、ナイロン粒子は膨潤するようにされた。SEM下で観察したところ、マイカの幾らかがナイロン粒子の表面に被覆されていることが判明した。しかしながらマイカの幾らかはナイロン粒子の間で凝集していた。したがって幾らかの被覆は生じたが、幾らかの粒子はポリマー粒子上には被覆されなかった。この被覆方法は、例1および例3に記載した方法ほど有効ではなかったが、被覆粒子は依然として生成された。
例3−複合粒状構築材料(マイカ付きナイロン)の調製
2:1未満の平均アスペクト比(例えば約1:1)と約50μmの平均粒径を有するナイロン粒子(フランス国コロンブのArkema社からのPA−12)の混合物が、ポリマー膨潤性溶媒であるm−クレゾールと混合され、ポリマー膨潤性溶媒は約1.5重量%のm−クレゾールが存在するようになるまで(最終生成物の合計含有量に基づいて)、混合と交互になるよう滴下により添加された。次に最長アスペクト比に沿って約3μmから5μmと見積もられる平均粒径を有するMagnapearl登録商標3000マイカ粒子(板状構造)が、マイカが固形分含量に基づき約7.5重量%で存在するようにして、溶媒/ポリマー組成物と混合された。次いでナイロン粒子は膨潤するようにされた。SEM下で観察したところ、ナイロン粒子の表面上に被覆されたマイカは、約35から50%と見積もられる表面積に存在していたことが判明した。例1におけるナイロン粒子に対するマイカ粒子の適用方法、およびこの例では、マイカの適用または表面埋設に関して大体同等の成功がもたらされた。しかしながら、Magnapearl登録商標1000(例1のもの)はより大きな粒子を有していたことから(幾つかはナイロン粒子と同程度に大きい)、ナイロン粒子表面に埋設状態とならない幾つかの大粒子があった。したがって50μmのナイロン粒子を被覆するためには、Magnapearl登録商標3000マイカ粒子(一般的により小さく、本例において使用)がさらに良好に合致すると判定された。それゆえ幾つかの例においては、より大きなポリマー粒子(本例の50μm粒子と比較して)を使用した場合は、両者とも受け入れ可能ではあるが、表面上により多くのマイカ粒子を埋設し、一緒に分散されたままの大粒子をより少なくすることが目標であるならば、Magnapearl登録商標1000マイカ粒子の方が良好に作用するであろう。
例4−複合粒状構築材料(マイカ付きナイロン)の調製
2:1未満の平均アスペクト比(例えば約1:1)と約50μmの平均粒径を有するナイロン粒子(フランス国コロンブのArkema社からのPA−12)の均一な混合物が、最長アスペクト比に沿って約3μmから5μmの平均粒径を有する約5重量%のMagnapearl登録商標3000マイカ粒子(板状構造)と混合された。これに対して、約1.5重量%のm−クレゾールがポリマー膨潤性溶媒として添加された。ポリマーは膨潤により、その表面にマイカ粒子が付着することを許容した。例1において記載されたナイロン粒子に付着したマイカ粒子の表面積と比較して、より大きな表面積被覆を達成可能であるが、それは本例では、例1で使用された比較的大きなマイカ粒子に比べて、マイカ粒子が小さいからである。
例5−複合粒状構築材料(ガラス繊維付きナイロン)の調製
2:1未満の平均アスペクト比(例えば約1:1)と約50μmの平均粒径を有するナイロン粒子(フランス国コロンブのArkema社からのPA−12)の均一な混合物が、平均繊維長約20μmを有する約7.5重量%のガラス繊維(繊維構造)と混合された。これに対して、約1.5重量%のm−クレゾールがポリマー膨潤性溶媒として添加された。膨潤するナイロン粒子は、繊維が表面に付着または埋設状態となることを許容する。
例6−物性の比較
比較のために、二つの構築材料が調製された。最初の構築材料は、例4に記載したと同様にして調製し、二番目の構築材料は、例4のナイロンPA−12を使用したが、その表面にマイカを適用しなかった。両方の構築材料を使用し、以下の表2に示す可融性インクを用いて3Dオブジェクトを形成した。
Claims (15)
- 複合粒状構築材料であって:
10μmから150μmの平均粒径および2:1未満の平均アスペクト比を有する92重量%から99.5重量%のポリマー粒子;および
0.1μmから20μmの平均粒径および3:1から100:1の平均アスペクト比を有し、ポリマー粒子の表面に適用された、0.5重量%から8重量%の補強用粒子を含む、複合粒状構築材料。 - ポリマー粒子が、ナイロン、熱可塑性エラストマー、ウレタン、ポリカーボネート、ポリスチレン、ポリアセタール、ポリプロピレン、ポリエステル、ポリエーテルケトン、ポリアクリレート、ポリウレタン、エンジニアリングプラスチック、ポリエチレン、ポリエチレンテレフタレート、これらの非晶質ポリマー、これらのブレンド、またはこれらのコアシェル複合体を含む、請求項1の複合粒状構築材料。
- 補強用粒子がマイカ、タルク、またはガラスを含む、請求項1の複合粒状構築材料。
- 補強用粒子が細長い繊維構造を有する、請求項1の複合粒状構築材料。
- 補強用粒子が平坦な板状構造を有する、請求項1の複合粒状構築材料。
- 補強用粒子がポリマー粒子の表面より下側に実質的に存在しない、請求項1の複合粒状構築材料。
- ポリマー粒子の表面の10%から80%が補強用粒子の合計表面積によって覆われている、請求項1の複合粒状構築材料。
- 材料が、3D印刷用のパウダーベッド構築材料として使用するに適した自由流動性粒子を形成する形態である、請求項1の複合粒状構築材料。
- 複合粒状構築材料の作成方法であって:
10μmから150μmの平均粒径と2:1未満の平均アスペクト比を有するポリマー粒子を、0.1μmから20μmの平均粒径と3:1から100:1の平均アスペクト比を有する補強用粒子と、ポリマー膨潤性溶媒の存在下に混合し;そして
補強用粒子がポリマー粒子の表面に適用された状態となるようポリマー粒子の膨潤を許容し、複合粒状構築材料を形成することを含む方法。 - 複合粒状構築材料を洗浄および乾燥させて、92重量%から99.5重量%のポリマー粒子と、ポリマー粒子の表面に埋設された0.5重量%から8重量%の補強用粒子を含む、粒状組成物をもたらすことをさらに含む、請求項9の方法。
- 混合する工程が、最初にポリマー粒子と補強用粒子を混合し、次いで膨潤性溶媒を添加することを含む、請求項9の方法。
- 混合する工程が、最初に膨潤性溶媒と補強用粒子を混合し、次いでポリマー粒子を添加することを含む、請求項9の方法。
- 混合する工程が、最初にポリマー粒子と膨潤性溶媒を混合し、次いで補強用粒子を添加することを含む、請求項9の方法。
- 3D印刷用の材料セットであって:
10μmから150μmの平均粒径および2:1未満の平均アスペクト比を有する92重量%から99.5重量%のポリマー粒子;および
0.1μmから20μmの平均粒径および3:1から100:1の平均アスペクト比を有し、ポリマー粒子の表面に適用された、0.5重量%から8重量%の補強用粒子を含む、複合粒状構築材料;並びに
液体ビヒクル;および
液体ビヒクル中に分散しており、複合粒状構築材料と接触し電磁エネルギーを照射された場合に、エネルギー源から電磁エネルギーを受け取り、複合粒状構築材料と共に溶融するのに適した電磁放射線吸収性固体を含む可融性インク
を含む材料セット。 - 補強用粒子がポリマー粒子の表面より下側に実質的に存在せず、ポリマー粒子の表面の10%から80%が補強用粒子の合計表面積によって覆われている、請求項14の材料セット。
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BR112018013724A2 (pt) * | 2016-04-15 | 2018-12-11 | Hewlett Packard Development Co | materiais de construção de compósito particulado |
JP7099473B2 (ja) * | 2017-11-06 | 2022-07-12 | コニカミノルタ株式会社 | 樹脂組成物、およびこれを用いた立体造形物の製造方法 |
WO2019117015A1 (ja) * | 2017-12-13 | 2019-06-20 | コニカミノルタ株式会社 | 立体造形物の製造方法、およびそれに用いる粉末材料 |
JP7136186B2 (ja) * | 2018-03-09 | 2022-09-13 | コニカミノルタ株式会社 | 熱可塑性樹脂含有粒子の製造方法、立体造形用樹脂組成物、およびこれを用いた立体造形物の製造方法 |
US11548216B2 (en) | 2018-03-21 | 2023-01-10 | Hewlett-Packard Development Company, L.P. | Three-dimensional printing |
WO2019182577A1 (en) * | 2018-03-21 | 2019-09-26 | Hewlett-Packard Development Company, L.P. | Three-dimensional printing |
JP7305685B2 (ja) * | 2018-07-02 | 2023-07-10 | ビーエーエスエフ ソシエタス・ヨーロピア | 少なくとも1種の強化繊維を含有する焼結粉末粒子(sp)を製造する方法 |
US11833751B2 (en) * | 2019-06-10 | 2023-12-05 | Hewlett-Packard Development Company, L.P. | Three-dimensional printing |
WO2020251525A1 (en) * | 2019-06-10 | 2020-12-17 | Hewlett-Packard Development Company, L.P. | Three-dimensional printing |
JP2021146678A (ja) * | 2020-03-23 | 2021-09-27 | 株式会社リコー | 樹脂粉末、立体造形用樹脂粉末、立体造形物の製造方法、及び立体造形物の製造装置 |
CN112778835A (zh) * | 2020-12-31 | 2021-05-11 | 重庆宏图新材料科技有限公司 | 一种模内贴专用免处理表印磨砂哑光油及其制备方法 |
TWI835569B (zh) * | 2023-02-21 | 2024-03-11 | 國立臺灣科技大學 | 高分子複合顆粒材之製備方法、及利用該高分子複合顆粒材進行三維列印的方法 |
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US20230348741A1 (en) | 2023-11-02 |
US20210238430A1 (en) | 2021-08-05 |
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