JP7408624B2 - 遊離cno基を有する溶融性ポリマーを含有する材料を適用する方法 - Google Patents
遊離cno基を有する溶融性ポリマーを含有する材料を適用する方法 Download PDFInfo
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- 150000002910 rare earth metals Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 229920013730 reactive polymer Polymers 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 229920006126 semicrystalline polymer Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000002411 thermogravimetry Methods 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 229920006345 thermoplastic polyamide Polymers 0.000 description 1
- 150000003573 thiols Chemical class 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- RUELTTOHQODFPA-UHFFFAOYSA-N toluene 2,6-diisocyanate Chemical compound CC1=C(N=C=O)C=CC=C1N=C=O RUELTTOHQODFPA-UHFFFAOYSA-N 0.000 description 1
- 150000004072 triols Chemical class 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
- 150000003673 urethanes Chemical class 0.000 description 1
- 229920006163 vinyl copolymer Polymers 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/06—Polyurethanes from polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/118—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4236—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups
- C08G18/4238—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups derived from dicarboxylic acids and dialcohols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
- C08G18/4808—Mixtures of two or more polyetherdiols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6633—Compounds of group C08G18/42
- C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/664—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/721—Two or more polyisocyanates not provided for in one single group C08G18/73 - C08G18/80
- C08G18/722—Combination of two or more aliphatic and/or cycloaliphatic polyisocyanates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/73—Polyisocyanates or polyisothiocyanates acyclic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
- C08G18/751—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring
- C08G18/752—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
- C08G18/753—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group
- C08G18/755—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/007—Hardness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2170/00—Compositions for adhesives
- C08G2170/20—Compositions for hot melt adhesives
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Polyurethanes Or Polyureas (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Paints Or Removers (AREA)
Description
a)95~3重量%の、第1のポリイソシアネートと60000未満の分子量を有するエチレン性不飽和モノマーのポリマーとの反応生成物であって、前記ポリマーが活性水素基を有し;エチレン、酢酸ビニルおよび少なくとも1つの第1級水酸基を有するエチレン性不飽和モノマーのコポリマーではない反応生成物;
b)5~90重量%の、ポリエステルジオール、ポリエステルトリオール、ポリエステルポリオール、芳香族ポリオールおよびそれらの混合物の群からの少なくとも1つのポリオールと、第1のポリイソシアネートと同じであっても異なっていてもよい少なくとも1つの第2のポリイソシアネートとから調製される遊離イソシアネート基を有する少なくとも1つのポリウレタンプレポリマー;および
c)0~40重量%の、触媒、粘着付与剤、可塑剤、充填剤、顔料、安定剤、接着促進剤、レオロジー向上剤およびそれらの混合物の群からの少なくとも1つの添加剤、
ここで、a)、b)およびc)の合計は100重量%である。
I)物品の第1の選択された断面に対応する、構造材料の層が得られるように、少なくとも部分的に溶融した構造材料のフィラメントをキャリアに適用すること;
II)物品のさらなる選択された断面に対応し、事前に適用された層に結合される、構造材料のさらなる層が得られるように、少なくとも部分的に溶融した構造材料のフィラメントを、上記構造材料の事前に適用された層に適用すること;
III)物品が形成されるまでステップII)を繰り返すこと;
ここで、少なくともステップII)およびIII)はチャンバー内で行われ、構造材料は可融性ポリマーを含む。可融性ポリマーは、溶融範囲(DSC、示差走査熱量測定;加熱速度5K/分での第2加熱)が>20℃から<100℃であり、複素粘度|η*|(100℃、せん断速度1/sのプレート/プレート振動せん断粘度計を用いた溶融物の粘度測定により測定)の大きさが>10Pasから<1000000Pasであり、チャンバー内温度は<50℃である。
- 第1の基材に吐出要素の吐出開口部から可融性ポリマーを含む少なくとも部分的に溶融した材料のフィラメントを適用すること
を含み、
前記可融性ポリマーが以下の特性:
- ≧35℃から≦150℃(好ましくは≧40℃から≦130℃、より好ましくは≧45℃から≦120℃)の範囲内の融点(DSC、示差走査熱量測定;加熱速度5℃/分での第2の加熱);
- ≧-70℃から≦110℃(好ましくは≧-50℃から≦50℃、より好ましくは≧-48℃から≦20℃)の範囲内のガラス転移温度(DIN EN ISO 6721-1:2011に対する動的機械的分析、DMA)
を有しており、
ここで、前記フィラメントは、適用工程中において、≦20分(好ましくは≧1秒から≦10分、より好ましくは≧1秒から≦5分、さらに好ましくは≧1秒から≦2分、特に好ましくは≧1秒から≦30秒)の間、前記可融性ポリマーの融点より≧100℃(好ましくは≧120℃、より好ましくは≧180℃、非常に好ましくは≧200℃)高い適用温度を有しており、
前記可融性ポリマーを含む材料中に依然として遊離NCO基が存在している。
A1) 融点より20℃高い温度で≧1・104Pa、好ましくは≧5・104Pa、より好ましくは≧1・105Pa、最も好ましくは≧2・105Paの貯蔵弾性率G’(周波数1/sでのISO 6721-10に対するプレート/プレート振動粘度計);
A2) 融点より20℃高い温度への予備加熱と、その後の1℃/分の冷却速度での冷却により、融点より10℃低い温度で≦1・107Pa、好ましくは≦5・106Pa、より好ましくは≦1・106Paの貯蔵弾性率G’(周波数1/sでのISO 6721-10に対するプレート/プレート振動粘度計);
A3) 適用工程時に到達する最高適用温度での可融性ポリマーの貯蔵弾性率G’(周波数1/sでのISO 6721-10に対するプレート/プレート振動粘度計)は、可融性ポリマーの融点より20℃高い温度での貯蔵弾性率G’(周波数1/sでのISO 6721-10に対するプレート/プレート振動粘度計)の≧10分の1(好ましくは≧30分の1、最も好ましくは≧100分の1)である、
A4) 特性A1)~A3)のうちの少なくとも2つ
1.EP0192946A1に記載される末端ヒドロキシル基を有する実質的に直鎖状のポリエステルポリウレタンであって、
a)600を超える分子量のポリエステルジオール、および任意に
b)鎖延長剤としての62~600g/molの分子量範囲のジオールと、
c)脂肪族ジイソシアネートと
の反応によって調製され、
成分a)およびb)のヒドロキシル基と成分c)のイソシアネート基の当量比が1:0.9~1:0.999であることを観察し、ここで、成分a)は、少なくとも80重量%の範囲の、(i)アジピン酸および(ii)1,4-ジヒドロキシブタンと1,6-ジヒドロキシヘキサンの、ジオールのモル比が4:1~1:4である、混合物に基づく4000~6000の分子量範囲のポリエステルジオールからなる。
I)物品の第1の選択された断面に対応する、材料の層を得るために、少なくとも部分的に溶融した材料のフィラメントをキャリアに適用すること;
II)物品のさらなる選択された断面に対応し、事前に適用された層に結合される、材料のさらなる層を得るために、少なくとも部分的に溶融した材料のフィラメントを材料の事前に適用された層に適用すること;
III)物品が形成されるまで工程II)を繰り返すこと。
Dispercoll(登録商標)U 54、アニオン性高分子量ポリウレタン分散液は、Covestro Deutschland AGから供給され、得られたままで使用した。Dispercoll(登録商標)U 54は、熱活性化可能な接着剤の製造のための原料である。
Tamol(登録商標)NN 4501(水中45%)保護コロイド;製造業者:BASF AG,67056 Ludwigshafen
Borchigel(登録商標)ALA;増粘剤;製造業者:Borchers GmbH,D-40765 Monheim.
Lucramul 1820 Liquid、非イオン性乳化剤、製造業者:Levaco Chemicals,D-51368 Leverkusen
適切なパラメーターの測定のために以下に詳述される方法は、例の伝導および評価のために使用され、そしてまた、一般的に、本発明に従う関連パラメーターの測定のための方法である。
架橋剤分散液の調製:
100gの脱イオン水、0.5gの乳化剤、3.1gの失活アミン、10gの増粘剤、0.7gの保護コロイドおよび67gのDesmodur(登録商標)Z 2589を最初に入れ、15分以内で2000rpmにて溶解ディスクと混合して、均一な懸濁液を得る。
架橋剤分散液の調製:
100gの脱イオン水、0.5gの乳化剤、3.1gの失活アミン、10gの増粘剤、0.7gの保護コロイドおよび67gのDesmodur(登録商標)Z 2589を最初に入れ、15分以内で2000rpmにて溶解ディスクと混合して、均一な懸濁液を得る。
1000gの水性ポリウレタン分散液Dispercoll(登録商標)U 54(水中50%)を31.3gのDispercoll(登録商標)BL XP 2514と混合し、実験室用撹拌機(Heidolph Instruments GmbH & CO.KG製)で3分間撹拌した。その後、混合物を直ちに-18℃で24時間、次いで23℃で24時間保存した。続いて、存在する粗粒混合物を濾過し、粒状残渣を4mmふるいに通してふるい分けし、空気循環乾燥キャビネット中で23℃にて72時間乾燥させた。得られたものは、<2%の残留水分含量を有する白色粗粒粉末であった。続いて、これを、2軸スクリュー押出機(Micro Compounder、DSM Xplore製)中、100℃、滞留時間<5分、40rpmで、直径3mmのオリフィスノズルに通して処理して、直径約3mmのストランドを得た。得られたストランドをFDMプリンター(X400CE、German RepRap製)で加工し、次のプロセス条件で3mmストランドの加工用に修正した:構造空間温度=23℃、押出ノズル直径=0.8mm、押出機温度=260℃、押出速度=70mm/s。ノズルの加熱領域の体積は約0.2mlであり、その結果、適用工程時の溶融材料の平均滞留時間は約6秒となる。
1000gの水性ポリウレタン分散液Dispercoll(登録商標)U 54(水中50%)を65.5gのDispercoll(登録商標)BL XP 2514と混合し、実験室用撹拌機(Heidolph Instruments GmbH & CO.KG製)で3分間撹拌した。その後、混合物を直ちに-18℃で24時間、次いで23℃で24時間保存した。続いて、存在する粗粒混合物を濾過し、粒状残渣を4mmふるいに通してふるい分けし、空気循環乾燥キャビネット中で23℃にて72時間乾燥させた。得られたものは、<2%の残留水分含量を有する白色粗粒粉末であった。続いて、これを、2軸スクリュー押出機(Micro Compounder、DSM Xplore製)中、100℃、滞留時間<5分、40rpmで、直径3mmのオリフィスノズルに通して処理して、直径約3mmのストランドを得た。得られたストランドをFDMプリンター(X400CE、German RepRap製)で加工し、次のプロセス条件で3mmストランドの加工用に修正した:構造空間温度=23℃、押出ノズル直径=0.8mm、押出機温度=260℃、押出速度=70mm/s。ノズルの加熱領域の体積は約0.2mlであり、その結果、適用工程時の溶融材料の平均滞留時間は約6秒となる。
1000gの水性ポリウレタン分散液Dispercoll(登録商標)U 54(水中50%)を-12℃で36時間、次いで23℃で24時間保存した。続いて、存在する粗粒混合物を濾過し、粒子状残渣を4mmのふるいに通してふるい分けし、空気循環乾燥キャビネット中で30℃にて48時間乾燥した。得られたものは、<2%の残留水分含量を有する白色粗粒粉末であった。続いて、これを、2軸スクリュー押出機(Micro Compounder、DSM Xplore製)中、100℃、滞留時間<5分、40rpmで、直径3mmのオリフィスノズルに通して処理して、直径約3mmのストランドを得た。得られたストランドをFDMプリンター(X400CE、German RepRap製)で加工し、次のプロセス条件で3mmストランドの加工用に修正した:構造空間温度=23℃、押出ノズル直径=0.8mm、押出機温度=260℃、押出速度=70mm/s。ノズルの加熱領域の体積は約0.2mlであり、その結果、適用工程時の溶融材料の平均滞留時間は約6秒となる。
Claims (15)
- 可融性ポリマーを含む材料を第1の基材に適用する方法であって、以下の工程:
- 吐出要素の吐出開口部から可融性ポリマーを含む少なくとも部分的に溶融した材料のフィラメントを第1の基材に適用すること
を含み、
前記可融性ポリマーが以下の特性:
- ≧35℃から≦150℃の範囲内の融点(DSC、示差走査熱量測定;加熱速度5℃/分での第2の加熱);
- ≧-70℃から≦110℃の範囲内のガラス転移温度(DIN EN ISO 6721-1:2011に対する動的機械的分析、DMA)
を有しており、
ここで、前記フィラメントは、前記フィラメントを前記第1の基材に適用する適用工程中において、≦20分の間、前記可融性ポリマーの融点より≧100℃高い適用温度を有しており、
前記可融性ポリマーを含む材料中に依然として遊離NCO基が存在する
ことを特徴とする方法。 - 前記可融性ポリマーを含む材料中の遊離NCO基の含有量が、可融性ポリマーを含む前記材料の総重量に基づいて、≧0.1重量%から≦10重量%の範囲内(DIN EN ISO 11909に対する滴定測定)であることを特徴とする、請求項1に記載の方法。
- 前記可融性ポリマーを含む材料中の遊離NCO基の≧60mol%から≦100mol%が末端NCO基の形態であることを特徴とする、請求項1または2に記載の方法。
- 前記可融性ポリマーが、以下の特性:
A1) 前記融点より20℃高い温度で≧1・104Paの貯蔵弾性率G’(周波数1/sでのISO 6721-10に対するプレート/プレート振動粘度計);
A2) 前記融点より20℃高い温度への予備加熱と、その後の1℃/分の冷却速度での冷却により、融点より10℃低い温度で≦1・107Paの貯蔵弾性率G’(周波数1/sでのISO 6721-10に対するプレート/プレート振動粘度計);
A3) 適用工程時に到達する最高適用温度での前記可融性ポリマーの貯蔵弾性率G’(周波数1/sでのISO 6721-10に対するプレート/プレート振動粘度計)は、前記可融性ポリマーの融点より20℃高い温度での貯蔵弾性率G’(周波数1/sでのISO 6721-10に対するプレート/プレート振動粘度計)の≧10分の1である、
A4) 特性A1)~A3)のうちの少なくとも2つ
の少なくとも一つを有することを特徴とする、請求項1~3のいずれかに記載の方法。 - 前記可融性ポリマーを含む材料中のNCO基が、≧340g/molから≦10,000g/molの平均分子量Mn(ポリスチレン標準および溶離剤としてのN,N-ジメチルアセトアミドに対するゲル浸透クロマトグラフィーによって決定される)を有する別個の成分中に存在することを特徴とする、請求項1または4のいずれかに記載の方法。
- 前記可融性ポリマーを含む材料中にゼレビチノフ活性水素原子を有する遊離基も存在することを特徴とする、請求項1~5のいずれかに記載の方法。
- 前記フィラメントが、≧20mm/sの速度で前記第1の基材に適用されることを特徴とする、請求項1~6のいずれかに記載の方法。
- 前記可融性ポリマーが、≦1時間の期間に到達した最高適用温度での貯蔵後、貯蔵弾性率G’(周波数1/sでのDIN EN ISO 6721-1:2011に対する動的機械的分析、DMA)が2倍を超えるか、または貯蔵弾性率G’(周波数1/sでのDIN EN ISO 6721-1:2011に対する動的機械的分析、DMA)が、開始値の半分未満の値に低下するように選択されることを特徴とする、請求項1~7のいずれかに記載の方法。
- 前記材料の適用の前に、それを≦40℃の温度から≦5分以内に最高適用温度まで加熱することを特徴とする、請求項1~8のいずれかに記載の方法。
- 吐出オリフィスを有する前記吐出要素が、前記第1の基材と接触して、前記第1の基材上を一定圧力で走行することを特徴とする、請求項1~9のいずれかに記載の方法。
- 前記材料が、≧0.001barの圧力で前記第1の基材に適用されることを特徴とする、請求項1~10のいずれかに記載の方法。
- 前記可融性ポリマーが、ポリイソシアネート成分とポリオール成分との反応から得られるポリウレタンを含み、前記ポリオール成分が、≧25℃の流動点(ASTM D5985)を有するポリエステルポリオールを含むことを特徴とする、請求項1~11のいずれかに記載の方法。
- 前記可融性ポリマーは、その融点より20℃高く加熱し、4℃/分の冷却速度で20℃に冷却した後、≧1分間の25℃から40℃までの温度間隔の範囲内で、貯蔵弾性率G’(周波数1/sでのISO 6721-10に対するプレート/プレート振動粘度計によりそれぞれの温度で測定)が≧100kPaから≦10MPaであり、そして、20℃に冷却し、20℃で120分間保存した後、貯蔵弾性率G’(周波数1/sでのISO 6721-10に対するプレート/プレート振動粘度計により20℃で測定)が≧20MPaであることを特徴とする、請求項1~12のいずれかに記載の方法。
- 適用される前記材料が第2の基材と接触されることを特徴とする、請求項1~13のいずれかに記載の方法。
- 前記方法が、可融性ポリマーを含む前記材料から物品を製造する方法を含み、前記方法が、以下の工程:
I)前記物品の第1の選択された断面に対応する、前記材料の層を得るために、前記少なくとも部分的に溶融した材料のフィラメントをキャリアに適用すること;
II)前記物品のさらなる選択された断面に対応し、事前に適用された前記層に結合される、前記材料のさらなる層を得るために、前記少なくとも部分的に溶融した材料のフィラメントを前記材料の事前に適用された層に適用すること;
III)前記物品が形成されるまで工程II)を繰り返すこと
を含むことを特徴とする、請求項1~14のいずれかに記載の方法。
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