JP2022510632A - ホットメルト組成物から無機フィルター支持体を材料付加製造する方法及び得られる膜 - Google Patents
ホットメルト組成物から無機フィルター支持体を材料付加製造する方法及び得られる膜 Download PDFInfo
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- JP2022510632A JP2022510632A JP2021529776A JP2021529776A JP2022510632A JP 2022510632 A JP2022510632 A JP 2022510632A JP 2021529776 A JP2021529776 A JP 2021529776A JP 2021529776 A JP2021529776 A JP 2021529776A JP 2022510632 A JP2022510632 A JP 2022510632A
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Abstract
Description
・平均径が0.1μm~150μmの粒子の形態である第1の粉末固体無機相と、少なくとも1種のホットメルト重合体を含むマトリックスの形態である第2の相とを含む上記無機組成物を得る工程、
・上記無機組成物を上記3D印刷機の上記押出ヘッドに供給する工程であって、上記押出ヘッドは、上記無機組成物を押し出して上記ストリングを形成できる温度である、工程、
・上記水平プレート上の上記ストリングを用いて、上記3Dデジタルモデルに従って上記操作可能な三次元未処理構造体を構築する工程、
・この操作可能な三次元未処理構造体を熱処理炉に配置して、上記粉末固体無機相を形成する少なくとも1種の材料の溶融温度の0.5~1倍の温度で焼結操作を行う工程
からなる。
・固化装置を用いて上記ストリングの押出しとともに上記操作可能な三次元未処理構造体の固化を促進する。
・上記固化装置は、上記マトリックスに含まれる少なくとも1種のホットメルト重合体を固形化させる制御冷却装置である。
・上記操作可能な三次元未処理構造体は、支持手段を用いずに傾斜を有して形成される。
・上記粉末固体無機相は、1種以上の酸化物及び/又は炭化物及び/又は窒化物及び/又は金属を含み、好ましくは酸化チタン、酸化アルミニウム、酸化ジルコニウム、酸化マグネシウム、炭化ケイ素、チタン、及びステンレス鋼から選択され、特に酸化チタンである。
・上記粉末固体無機相の粒度、上記ホットメルト重合体の性質及び/又は割合、上記無機組成物の温度のうち少なくとも1つの特性により上記無機組成物のレオロジーを調整する。
・上記操作可能な三次元未処理構造体は、互いに分離可能な複数の三次元サブ構造体の形態で形成される。
・上記操作可能な三次元未処理構造体は、上記無機組成物ストリングを用いて形成された少なくとも1つの破壊可能なブリッジで互いに接続、保持された複数の三次元サブ構造体の形態で形成される。
・互いに固定して取り付けられた複数の押出ヘッドを移動させて、同時に複数の独立した三次元構造体をそれぞれ各押出ヘッドで構築する。
・上記無機組成物はフィラメント又はペレットの形態である。
・水銀圧入ポロシメトリー(上記ISO規格15901-1)。水銀を圧入し、印加した圧力で到達可能な気孔を充填する。その注入された水銀の体積が気孔容積に相当する。
・小角散乱。この技術は中性子線又はX線を用いるものであり、試料全体で平均化された物理量を入手できる。測定では、試料によって散乱された強度の角度分布を解析する。
・顕微鏡観察で得た2D画像の解析。
・X線トモグラフィで得た3D画像の解析。
・熱押出の場合、小円柱形
・圧縮の場合、小球状タブレット(ペレット)等
・液相を蒸発させる場合(乾燥「ケーキ」の粉砕)、小型の無定形ブロック
・3mm~約0.1μmの範囲の粒子の場合、レーザー光回折
・沈降/遠心分離
・0.5μm~2nmの範囲の粒子の場合、動的光散乱(DLS)
・顕微鏡観察で得た画像の解析
・小角X線回折
Claims (13)
- 固定された水平プレート(5)の上方に該水平プレートに対して空間を移動可能に取り付けられた少なくとも1つの押出ヘッド(6)を有する3D印刷機(I)を用いて、気孔率が10%~60%であり、平均孔径が0.5μm~50μmの範囲である少なくとも1つのモノリシック無機多孔質支持体(1)を製造する方法であって、上記3D印刷機によって、無機組成物(4)のストリング(7i,j)を堆積させることで、上記モノリシック無機多孔質支持体(1)を形成するための操作可能な三次元未処理構造体(2)を3Dデジタルモデル(M)から構築でき、上記方法は、
平均径が0.1μm~150μmの粒子の形態である第1の粉末固体無機相と、少なくとも1種のホットメルト重合体を含むマトリックスの形態である第2の相とを含む上記無機組成物(4)を得る工程、
上記無機組成物(4)を上記3D印刷機(I)の上記押出ヘッド(6)に供給する工程であって、上記押出ヘッド(6)は、上記無機組成物(4)を押し出して上記ストリング(7i,j)を形成できる温度である、工程、
上記水平プレート(5)上の上記ストリング(7i,j)を用いて、上記3Dデジタルモデル(M)に従って上記操作可能な三次元未処理構造体(2)を構築する工程、
この操作可能な三次元未処理構造体(2)を熱処理炉に配置して、上記粉末固体無機相を形成する少なくとも1種の材料の溶融温度の0.5~1倍の温度で焼結操作を行う工程
からなる方法。 - 固化装置(10)を用いて上記ストリング(9)の押出しとともに上記操作可能な三次元未処理構造体(2)の固化を促進する、請求項1に記載の方法。
- 上記固化装置(10)は、上記マトリックスに含まれる少なくとも1種のホットメルト重合体を固形化させる制御冷却装置である、請求項2に記載の方法。
- 上記操作可能な三次元未処理構造体(2)は、支持手段を用いずに傾斜を有して形成される、請求項2又は3に記載の方法。
- 上記粉末固体無機相は、1種以上の酸化物及び/又は炭化物及び/又は窒化物及び/又は金属を含み、好ましくは酸化チタン、酸化アルミニウム、酸化ジルコニウム、酸化マグネシウム、炭化ケイ素、チタン、及びステンレス鋼から選択され、特に酸化チタンである、請求項1~4のいずれか1項に記載の方法。
- 上記粉末固体無機相の粒度、上記ホットメルト重合体の性質及び/又は割合、上記無機組成物(4)の温度のうち少なくとも1つの特性により上記無機組成物(4)のレオロジーを調整する、請求項1~5のいずれか1項に記載の方法。
- 上記操作可能な三次元未処理構造体(2)は、互いに分離可能な複数の三次元サブ構造体(23、24)の形態であることを特徴とする請求項1~6のいずれか1項に記載の方法。
- 上記操作可能な三次元未処理構造体(2)は、上記ストリング(7i,j)を用いて形成された少なくとも1つの破壊可能なブリッジ(13)で互いに接続、保持された複数の三次元サブ構造体(23、24)の形態であることを特徴とする請求項1~7のいずれか1項に記載の方法。
- 上記無機組成物(4)はフィラメントの形態であることを特徴とする請求項1~8のいずれか1項に記載の方法。
- 上記無機組成物(4)はペレットの形態であることを特徴とする請求項1~8のいずれか1項に記載の方法。
- タンジェンシャル濾過膜を作製する方法であって、被処理流動媒体を循環させるための流路(11)が少なくとも1本配設されたモノリシック無機多孔質支持体(1)を請求項1~10のいずれか1項に従って製造する工程の後、上記流路(11)の壁部に少なくとも1層の分離層を形成する工程を含む方法。
- 破裂せずに少なくとも30バールの内圧に耐える、請求項1~10のいずれか1項に従って作製されたモノリシック無機多孔質支持体(1)。
- 破裂せずに少なくとも30バールの内圧に耐える、請求項11に従って作製されたタンジェンシャル濾過膜。
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FR1871952A FR3088831B1 (fr) | 2018-11-27 | 2018-11-27 | Procédé de fabrication par addition de matière de supports inorganiques de filtration à partir d’un filament thermofusible et membrane obtenue |
FR1871952 | 2018-11-27 | ||
PCT/FR2019/052808 WO2020109716A1 (fr) | 2018-11-27 | 2019-11-26 | Procede de fabrication par addition de matiere d'un support inorganique de filtration a partir d'une composition thermofusible et membrane obtenue |
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