JP7279919B2 - 光学的立体造形用組成物、並びに立体造形物、及びその製造方法 - Google Patents
光学的立体造形用組成物、並びに立体造形物、及びその製造方法 Download PDFInfo
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- JP7279919B2 JP7279919B2 JP2018241327A JP2018241327A JP7279919B2 JP 7279919 B2 JP7279919 B2 JP 7279919B2 JP 2018241327 A JP2018241327 A JP 2018241327A JP 2018241327 A JP2018241327 A JP 2018241327A JP 7279919 B2 JP7279919 B2 JP 7279919B2
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- B33Y70/00—Materials specially adapted for additive manufacturing
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
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- C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/10—Esters
- C08F222/1006—Esters of polyhydric alcohols or polyhydric phenols
- C08F222/104—Esters of polyhydric alcohols or polyhydric phenols of tetraalcohols, e.g. pentaerythritol tetra(meth)acrylate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/10—Esters
- C08F222/1006—Esters of polyhydric alcohols or polyhydric phenols
- C08F222/106—Esters of polycondensation macromers
- C08F222/1065—Esters of polycondensation macromers of alcohol terminated (poly)urethanes, e.g. urethane(meth)acrylates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
- C08F290/06—Polymers provided for in subclass C08G
- C08F290/067—Polyurethanes; Polyureas
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
-
- 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
- B33Y80/00—Products made by additive manufacturing
Description
タン(メタ)アクリレートの含有量は、成分(A)ラジカル重合性化合物中に5~40質量%の範囲であり、好ましくは10~30質量%の範囲である。成分(A2)の含有量が5質量%未満の場合は、柔軟性と強靭性(破断強度)が不十分となる。含有量が40質量%を超える場合は、立体造形物とした際に引張り強さがなくなる。
ことができる。
実施例1~6及び比較例1~9の光学的立体造形用組成物を、以下の手順で調整した。表1に示す組成の質量部に従って全ての成分を、撹拌容器に仕込み、20~40℃で2時間撹拌して液体組成物を得た。この液体組成物を、10ミクロンフイルターバッグ(PO-10-PO3A-503、Xinxiang D.King industry社製)でろ過して異物を除去し、一晩放置後に脱気して透明な液体組成物を得た。なお、調整した光学的立体造形用組成物の各々を数ml取って台の上に配置し、イソプロピルアルコールをかけると、いずれも容易に洗い流すことができた。
・KAYARAD R-604:成分(A1)のジオキサングリコールジアクリレート、粘度200~400mPa・s(25℃)、酸価<1.0、日本化薬社製
・NKオリゴUA-122P:成分(A2)のポリエステル系ウレタンアクリレート、粘度45000mPa・s(40℃)、分子量1100、新中村化学社製
・NKオリゴUA-160TM:成分(A3)のポリエーテル系ウレタンアクリレート、粘度2500mPa・s(40℃)、分子量1600、新中村化学社製
・アロニックスM-306:成分(A4)のラジカル重合性化合物であるペンタエリスリトールトリ及びテトラアクリレートの混合物(トリ体65~70%)、粘度400~650mPa・s/25℃、東亜合成社製
・ライトアクリレート4EG-A:成分(A4)のラジカル重合性化合物であるPEG400#ジアクリレート(エチレンオイサイド4モル付加物)、粘度10~12mPa・s/25℃、共栄社化学社製
・イルガキュアー907:成分(B)の光重合開始剤である2-メチル-1-(4-メチルチオフェニル)-2-モルホリノプロパン-1-オン、BASF社製
・カレンズMTNR1:成分(C)の増感剤である1,3,5-トリス(3-メルカプトブチリルオキシエチル)-1,3,5-トリアジン-2,4,6-(1H,3H,5H)-トリオン、昭和電工社製
光学的立体造形用組成物の硬化時間を評価するために、以下の手順でサンプルを製作した。実施例1の光学的立体造形用組成物を手製のポリエチレン製長方形型(幅約10mm×長さ100mm×、深さ5mm)に1mm液膜になるように流し込み、3kw高圧水銀等(波長365nm、距離1m)で、5秒間、10秒間、15秒間、20秒間、25秒間、30秒間、各々照射し、評価サンプルAを得た。実施例2~12及び比較例1~4の光学的立体造形用組成物についても、同様にして評価サンプルAを得た。
光学的立体造形用組成物の硬化時間を評価するために、以下の手順でサンプルを製作した。実施例1の光学的立体造形用組成物を手製のポリエチレン製長方形型(幅約10mm×長さ100mm×、深さ5mm)に1mm液膜になるように流し込み、3kw高圧水銀灯(波長365nm、距離1m)で20秒間照射し、これを合計4回繰り返して厚さ約4mmの平面板(幅約10mm×長さ100mm)を作成した。さらに平面板を30分間再照射し、光学的立体造形物である評価サンプルBを得た。実施例2~12及び比較例1~4の光学的立体造形用組成物についても、同様にして評価サンプルBを得た。
1.光学的立体造形用組成物の硬化時間の評価
評価サンプルAを用いて、照謝時間の短いサンプルからその表面状態を観察し、表面のタックが無い評価サンプルAに係る照射時間を硬化時間とした。なお、「表面のタックの有無」は、評価サンプルAをオーブンに入れて35℃で30分間処理し、室温(25℃)まで冷却した後、評価サンプルAの表面にポリエステルフイルムを手で押し当て、ポリエステルフイルムが簡単に剥がれなければタック有りとし、剥がれればタック無しとして判断した。評価サンプルAの硬化時間を表2に示した。
評価サンプルBを用いて、平面板の層(側面)を日本電子JSM-5600型走査電子顕微鏡(加速電圧7kv、倍率200倍)で観察した。評価の基準は、層間の隙間が存在する場合は(「×」)、層間の隙間がない場合は(「〇」)、とした。結果を表2に示した。
評価サンプルBの平面板を平台に置いて、その端部が平台から浮いた距離を測定する。判定の基準は、浮いた距離2mm以上の場合は(「×」)、浮いた距離2mm以下で浮いている場合は(「△」)、浮いた距離0mmつまり浮いていない場合は(「〇」)、とした。結果を表2に示した。
評価サンプルBの平面板について、ISO527-1に準拠して、以下の測定条件で引張り強度及び伸度を測定した。伸度は、破断時の最大の伸び率として測定した。結果を表2に示した。
測定装置:インストロン社製3366型万能試験機
引張速度(クロスヘッド速度):5mm/分
測定環境:温度25℃、湿度45%RH
標点間距離:80mm
評価サンプルBの平面板の3点曲げ試験を、ISO527-1に準拠して、以下の測定条件で行い、曲げ強度及び曲げ弾性率を測定した。結果を表2に示した。
測定装置:インストロン社製3366型万能試験機
試験条件:3点曲げ試験治具 圧子半径5mm
支点間距離64mm
負荷速度(クロスヘッド速度)2mm/分
測定環境:温度25℃、湿度45%RH
評価サンプルBについて、以下の測定条件で裸落下試験を行い、割れの有無を目視で観察し、落下割れ観察をした。結果を表2に示した。
落下床面:大理石床タイル
落下高さ:3m
サンプルの重さ:14.5g
サンプルの落下角度:大理石床タイル面に対して60度
判定の基準は、サンプル5つを落下させて、ヒビを含めた割れサンプル個数を記録した。
評価サンプルBの端部10mmを万力で挟んで固定した。評価サンプルBの片方の端部をペンチで挟み、往復10回左右に折り曲げた。試験後、折り曲げた部位の外観を目視で観察する。判定の基準は、〇:変化なし、△:白く変色、▲:ひび割れ、×:割れた、とした。
Claims (3)
- (A)ラジカル重合性化合物として、
(A1)ジオキサン(メタ)アクリレートのラジカル重合性化合物と、
(A2)2官能ポリエステル系ウレタン(メタ)アクリレートのラジカル重合性化合物と、
(A3)2官能ポリエーテル系ウレタン(メタ)アクリレートのラジカル重合性化合物と、
(A4)前記(A1)、前記(A2)及び前記(A3)以外のラジカル重合性化合物と、
(B)光重合開始剤と、
(C)増感剤と
を少なくとも含む光学的立体造形用組成物であって、
前記(A)ラジカル重合性化合物中に、
前記(A1)のラジカル重合性化合物が2~40質量%、
前記(A2)のラジカル重合性化合物が5~40質量%、
前記(A3)のラジカル重合性化合物が5~40質量%、
前記(A4)のラジカル重合性化合物が20~87質量%であり、
前記(A)ラジカル重合性化合物100重量部に対して、
前記(B)の光重合開始剤が0.1~5質量部、
前記(C)の増感剤が0.1~5質量部である、光学的立体造形用組成物。 - 請求項1に記載の光学的立体造形用組成物に、活性エネルギー線を照射して硬化させる工程を含む、立体造形物の製造方法。
- 請求項1に記載の光学的立体造形用組成物の硬化物を含む立体造形物。
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EP19904936.2A EP3904414B1 (en) | 2018-12-25 | 2019-01-21 | Composition for optical three-dimensional shaping, three-dimensionally shaped article, and method for producing same |
US16/972,438 US11840015B2 (en) | 2018-12-25 | 2019-01-21 | Composition for optical three-dimensional shaping, three-dimensionally shaped article, and method for producing same |
PCT/JP2019/001720 WO2020136919A1 (ja) | 2018-12-25 | 2019-01-21 | 光学的立体造形用組成物、並びに立体造形物、及びその製造方法 |
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