JP5588570B2 - ポリウレタン水分散体、及びそれから得られるフィルム成形体、手袋 - Google Patents
ポリウレタン水分散体、及びそれから得られるフィルム成形体、手袋 Download PDFInfo
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- JP5588570B2 JP5588570B2 JP2013558861A JP2013558861A JP5588570B2 JP 5588570 B2 JP5588570 B2 JP 5588570B2 JP 2013558861 A JP2013558861 A JP 2013558861A JP 2013558861 A JP2013558861 A JP 2013558861A JP 5588570 B2 JP5588570 B2 JP 5588570B2
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- Prior art keywords
- component
- polyurethane
- water dispersion
- polyurethane water
- film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004814 polyurethane Substances 0.000 title claims description 90
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- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 38
- 230000015271 coagulation Effects 0.000 claims description 38
- 238000005345 coagulation Methods 0.000 claims description 38
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims description 30
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- -1 diol compound Chemical class 0.000 claims description 15
- 239000004970 Chain extender Substances 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 11
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- 239000007788 liquid Substances 0.000 claims description 11
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- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000005058 Isophorone diisocyanate Substances 0.000 claims description 7
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- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 6
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- 150000005846 sugar alcohols Polymers 0.000 claims description 5
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- HIFVAOIJYDXIJG-UHFFFAOYSA-N benzylbenzene;isocyanic acid Chemical class N=C=O.N=C=O.C=1C=CC=CC=1CC1=CC=CC=C1 HIFVAOIJYDXIJG-UHFFFAOYSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 description 42
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- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 description 16
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- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 7
- DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 7
- 238000000465 moulding Methods 0.000 description 7
- 229920005906 polyester polyol Polymers 0.000 description 7
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 6
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 6
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 6
- 238000004945 emulsification Methods 0.000 description 6
- PSGAAPLEWMOORI-PEINSRQWSA-N medroxyprogesterone acetate Chemical compound C([C@@]12C)CC(=O)C=C1[C@@H](C)C[C@@H]1[C@@H]2CC[C@]2(C)[C@@](OC(C)=O)(C(C)=O)CC[C@H]21 PSGAAPLEWMOORI-PEINSRQWSA-N 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
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- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 4
- 239000004721 Polyphenylene oxide Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 125000003277 amino group Chemical group 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 239000000701 coagulant Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 229910052571 earthenware Inorganic materials 0.000 description 4
- 239000000839 emulsion Substances 0.000 description 4
- 238000009472 formulation Methods 0.000 description 4
- 239000004417 polycarbonate Substances 0.000 description 4
- 229920000515 polycarbonate Polymers 0.000 description 4
- 229920000570 polyether Polymers 0.000 description 4
- 229920001223 polyethylene glycol Polymers 0.000 description 4
- SXFJDZNJHVPHPH-UHFFFAOYSA-N 3-methylpentane-1,5-diol Chemical compound OCCC(C)CCO SXFJDZNJHVPHPH-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 3
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- SJRJJKPEHAURKC-UHFFFAOYSA-N N-Methylmorpholine Chemical compound CN1CCOCC1 SJRJJKPEHAURKC-UHFFFAOYSA-N 0.000 description 3
- 239000002202 Polyethylene glycol Substances 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000001361 adipic acid Substances 0.000 description 3
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- 235000019437 butane-1,3-diol Nutrition 0.000 description 3
- 239000001110 calcium chloride Substances 0.000 description 3
- 229910001628 calcium chloride Inorganic materials 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- KORSJDCBLAPZEQ-UHFFFAOYSA-N dicyclohexylmethane-4,4'-diisocyanate Chemical compound C1CC(N=C=O)CCC1CC1CCC(N=C=O)CC1 KORSJDCBLAPZEQ-UHFFFAOYSA-N 0.000 description 3
- 125000005442 diisocyanate group Chemical group 0.000 description 3
- 150000002009 diols Chemical class 0.000 description 3
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 3
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- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 3
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- 108010000222 polyserine Proteins 0.000 description 3
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- YPFDHNVEDLHUCE-UHFFFAOYSA-N 1,3-propanediol Substances OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 description 2
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Classifications
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- 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
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- C08G18/0823—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups containing carboxylate salt groups or groups forming them
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/44—Polycarbonates
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- 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
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- C08G18/4837—Polyethers containing oxyethylene units and other oxyalkylene units
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- 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
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- 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
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- C08G18/758—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing two or more cycloaliphatic rings
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- C—CHEMISTRY; METALLURGY
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Description
〔1〕 ジフェニルメタンジイソシアネート(a1)と脂環式ジイソシアネート(a2)とからなるポリイソシアネート(A)、エチレンオキシドとテトラヒドロフランのランダム共重合体(B)、数平均分子量が1000〜5000であるポリオール(C)、数平均分子量が400以下である多価アルコール系鎖延長剤(D)及びカルボキシル基を有するジオール化合物(E)を反応させて得られるイソシアネート基末端プレポリマーを中和し、得られた中和物を水中に分散させた後、アミン系鎖延長剤(F)を用いて鎖延長反応させて得られる、凝固液と併用して得られるフィルム成形体用ポリウレタン水分散体。
〔2〕 成分(a1)と成分(a2)のモル比が、(a1)/(a2)=20/80〜80/20である、前記〔1〕記載のポリウレタン水分散体。
〔3〕 成分(a2)が水素添加ジフェニルメタンジイソシアネート及びイソホロンジイソシアネートから選択される少なくとも1種である、前記〔2〕記載のポリウレタン水分散体。
〔4〕 成分(B)の数平均分子量が800〜4000であり、エチレンオキシド単位(EO)とテトラヒドロフラン単位(THF)のモル比がEO/THF=80/20〜10/90である、前記〔1〕〜〔3〕のいずれか記載のポリウレタン水分散体。
〔5〕 ポリウレタン水分散体中のポリウレタンに対して、EO含有量が2.8重量%以上である、前記〔4〕記載のポリウレタン水分散体。
〔6〕 EO含有量が2.8〜14重量%である、前記〔5〕記載のポリウレタン水分散体。
〔7〕 成分(a1)中における2,4’−ジフェニルメタンジイソシアネート(2,4’−MDI)の含有量が40重量%以上である、前記〔4〕記載のポリウレタン水分散体。
〔8〕 2,4’−MDIの含有量が70重量%以上である、前記〔7〕記載のポリウレタン水分散体。
〔9〕 前記〔1〕〜〔8〕のいずれかに記載のポリウレタン水分散体、及び凝固液を併用して得られるフィルム成形体。
〔10〕 前記〔1〕〜〔8〕のいずれかに記載のポリウレタン水分散体、及び凝固液を併用して得られる手袋。
成分(A):ポリイソシアネート
・ジフェニルメタンジイソシアネート(成分(a1))
(商品名「ミリオネートMT」、日本ポリウレタン工業社製、4,4’-MDIが99.5%以上で残りが2,4’-MDI、以下本製品と他の成分(a1)の製品とを特に区別する必要のない場合は「MDI」と略記する。本製品と他の成分(a1)の製品とを区別する必要がある場合は、商品名をそのまま記載する。)
(商品名「ルプラネートMI」、BASF INOAC ポリウレタン社、4,4’-MDI:2,4’-MDI=50%:50%)
(商品名「ミリオネートNM100」、日本ポリウレタン工業社製、4,4’-MDI:2,4’-MDI=5〜15%:95〜85%)
・脂環式ジイソシアネート(成分(a2))
(水素添加ジフェニルメタンジイソシアネート(商品名「デスモジュールW」、住化バイエルウレタン社製、以下「H12MDI」と略記))
(イソホロンジイソシアネート(商品名「デスモジュールI」、住化バイエルウレタン社製、以下「IPDI」と略記))
・商品名「ポリセリンDC3000E」、モル比(EO/THF)=50/50、数平均分子量3100、日油社製、以下「DC3000」と略記)
・商品名「ポリセリンDC1800E」、モル比(EO/THF)=50/50、数平均分子量1800、日油社製、以下「DC1800」と略記)
・商品名「ポリセリンDC1100E」、モル比(EO/THF)=65/35、数平均分子量1050、日油社製、以下「DC1100」と略記)
・ポリヘキサメチレンカーボネートジオール(商品名「UH−300」、数平均分子量3000、宇部興産社製、以下「UH300」と略記)
・ポリテトラメチレングリコール(商品名「PTG−2900」、数平均分子量2900、保土谷化学工業社製、以下「PTG2900」と略記)
・ポリエチレングリコール(商品名「PEG2000」、数平均分子量2000、日油社製、以下「PEG2000」と略記)
・ポリエステルポリオール(商品名「HOKOKUOL HT−300」、1,4−ブタンジオールとアジピン酸を縮合重合して得られるポリエステルポリオール、数平均分子量3000、豊国製油社製、以下「HT300」と略記)
・ポリエステルポリオール(商品名「ニッポラン4042」、1,4−ブタンジオール、エチレングリコールとアジピン酸を縮合重合して得られるポリエステルポリオール、数平均分子量2000、日本ポリウレタン社製)
・1,4−ブタンジオール
・2,2−ジメチロールプロピオン酸(以下、「DMPA」と略記)
・2,2−ジメチロールブタン酸(以下、「DMBA」と略記)
・30% 6水和ピペラジン
・水
・中和剤:トリエチルアミン
・溶剤:N−メチルピロリドン(NMP)、メチルエチルケトン(MEK)
・触媒:ジオクチル錫ジラウレート
評価項目として、ゲル化性能、ゲル化強度および造膜性能がある。
(ゲル化性能)
10%濃度の硝酸カルシウム水溶液に、縦180mm×横70mmの陶器製の板(以下、「陶器板」と略記)を、該陶器板が縦方向に100mm浸漬するように、5mm/secの速度で浸漬し、次いで10mm/secの速度で陶器板を引上げた後、これを100℃のオーブン内で加熱乾燥させた。この工程により、硝酸カルシウム水容液に浸漬された陶器板部分(縦100mm×横70mm)には、硝酸カルシウム層が形成される。続いて、55℃±5℃に冷ました陶器板を、該陶器板に形成された前記硝酸カルシウム層全体を浸漬させるため、縦方向の100mmが浸漬するまで、5mm/secの速度で、ポリウレタン水分散体に浸漬し、30秒間静止した後に10mm/secの速度で引き上げた。この一連の工程で、陶器板の表面には、塩凝固によってゲル化したポリウレタン水分散体のゲル皮膜が形成される。
続いて、上記陶器板のうち、硝酸カルシウム水溶液、ポリウレタン水分散体のいずれにも浸漬された短手側部分を上向きにし、23±2℃の室内に1分間静置させ、ゲル皮膜の外観を目視で観察し、以下の基準でゲル化性能を評価した。
◎:皮膜に割れが生じない(良好)。
○:皮膜に1mm未満の割れが1〜2つ発生したが、1mm以上の割れは発生しない(やや良)。
×:ゲル皮膜に1mm未満の割れが3つ以上発生したか、または1mm以上の割れが1つ以上発生した(不良)。
*上記基準のうち、◎と○は実用性を有すると評価される。
ゲル化性能の評価時に陶器板から皮膜を剥離し、指で皮膜を引張り、以下の基準でゲル化強度(ゲル皮膜の皮膜強度の状態)を評価した。
◎:皮膜を形成し、皮膜にゴム弾性(伸縮性)がある(良好)。
○:皮膜を形成し、皮膜に伸びがある(やや良)。
×:皮膜を形成するが、皮膜に伸びがない、又は、皮膜を形成しない(不良)。
*上記基準のうち、◎と○は実用性を有すると評価される。
上記「(ゲル化性能)」の評価に用いた、ゲル皮膜が形成された陶器板を、120℃のオーブン内で30分間加熱乾燥させた時の皮膜の状態を目視で観察し、以下の基準で造膜性能を評価した。
◎:皮膜に割れが生じない(良好)。
○:皮膜に1mm未満の割れが1〜2つ発生したが、1mm以上の割れは発生しない(やや良)。
×:皮膜に1mm未満の割れが3つ以上発生したか、または1mm以上の割れが1つ以上発生した(不良)。
*上記基準のうち、◎と○は実用性を有すると評価される。
上記「(造膜性能)」の評価時に用いた乾燥皮膜(ゲル皮膜を乾燥させた皮膜(以下、「乾燥皮膜」と略記)、厚み:100μm)から、JIS3号ダンベルを用いて試験片を切り出し、LLOYD社の引張試験機LR−5Kを用い、チャック間隔60mm、標線20mm、引張速度500mm/分、温度23±2℃で、JIS K6251に準拠して評価した。
試験片が100%伸びた時の引張荷重を測定し、下記式によって引張強度を求めた。
100%モジュラス(MPa)=F100%/A
ただし、F100%は100%伸び時の引張荷重(N)、Aは試験片の断面積(mm2)である。
100%モジュラスの判断基準は以下のとおりである。
◎:4.0MPa未満(良好)
○:4.0MPa以上、7.0MPa未満(やや良)
×:7.0MPa以上(不良)
*上記基準のうち、◎と○は実用性を有すると評価される。
上記「(造膜性能)」の評価時に用いた乾燥皮膜(厚み:100μm)から、JIS3号ダンベルを用いて試験片を切り出し、エチルアルコール70%水(23℃±2℃)に30分間浸漬させた後に取り出した。取り出した試験片を軽く拭いてから90秒後に、JIS K−6301に従い、破断強度試験を行い、以下の基準で耐エタノール水性能を評価した。
◎:破断強度が10MPa以上(良好)
○:破断強度が4MPa以上、10MPa未満(やや良)
×:破断強度が4MPa未満(不良)
*上記基準のうち、◎と○は実用性を有すると評価される。
JIS L 1099A−1法(塩化カルシウム法)に準じ、上記「(造膜性能)」の評価時に用いた乾燥皮膜(厚み:100μm)の透湿度を測定し、以下の基準で透湿性を評価した。
◎:800 g/m2−24hrs 以上
○:550 g/m2-24hrs 以上、800 g/m2-24hrs 未満
×:550 g/m2-24hrs 未満
*上記基準のうち、◎と○は実用性を有すると評価される。
(ポリウレタン水分散体No.1の製造)
反応器に、DC3000(成分(B)) 24.9部、UH300(成分(C))158.4部、ジオクチル錫ジラウレート0.01部を仕込み、十分撹拌溶解し、MDI(成分(A)) 25.2部、H12MDI(成分(A))26.4部を加えて85℃で3時間反応させた。次に、60℃まで冷却した後、DMPA(成分(E))5.0部、1,4−ブタンジオール(成分(D))5.2部、NMP 61.3部、MEK 188.7部を加え、十分撹拌溶解し、ジオクチル錫ジラウレート0.04部を加え、80℃で8時間反応させ、イソシアネート値(固形分に対する残存イソシアネート基の重量含有量)が0.8%のプレポリマーを得た。このプレポリマーを50℃まで冷却し、トリエチルアミン 3.8部を加えて中和し、次いで水470.8部を加えて転相乳化した。この乳化分散液に30% 6水和ピペラジン(成分(F))18.9部(残存イソシアネート基に対してアミン基として100当量%)を加えて乳化分散した。得られた乳化液を脱溶剤することにより、不揮発分25%、pH7.3のポリウレタン水分散体No.1を得た。
表1に示す原材料、配合処方を用いてポリウレタン水分散体No.1と同様の方法でポリウレタン水分散体No.2〜No.9を製造した。
上記の結果から、ゲル化強度と耐エタノール水性能をともに実用性を有するものとするには、ポリオールとして成分(B)と成分(C)を併用することが必要であると考えられる。
(ポリウレタン水分散体No.10の製造)
反応器に、DC3000(成分(B)) 12.8部、UH−300(成分(C))170.9部、ジオクチル錫 ジラウレート0.01部を仕込み、十分撹拌溶解し、MDI(成分(A)) 33.6部、H12MDI(成分(A))17.6部を加えて85℃で3時間反応させた。次に、60℃まで冷却した後、DMPA(成分(E))5.0部、1,4−ブタンジオール(成分(D))5.3部、NMP 61.3部、MEK 188.7部を加え、十分撹拌溶解し、ジオクチル錫ジラウレート0.04部を加え、80℃で8時間反応させ、イソシアネート値(固形分に対する残存イソシアネート基の重量含有量)が0.8%のプレポリマーを得た。このプレポリマーを、50℃まで冷却し、トリエチルアミン 3.7部を加えて中和し、次いで水470.9部を加えて転相乳化した。この乳化分散液に30% 6水和ピペラジン(成分(F))19.1部(残存イソシアネート基に対してアミン基として100当量%)を加えて乳化分散した。得られた乳化液を脱溶剤することにより、不揮発分25%、pH7.3のポリウレタン水分散体No.10を得た。
表3に示す原材料、配合処方を用いてポリウレタン水分散体No.10と同様の方法でポリウレタン水分散体No.11〜No.18を製造した。
成分(A)としてMDIのみを用いたNo.15は、そもそもポリウレタン水分散体が製造できず、成分(A)としてH12MDIとIPDIのいずれか一方を用いたNo.16,No.18では、ゲル化強度は実用性を有すると評価されたが、耐エタノール水性能が実用性を有しないと評価された。
一方、成分(A)としてMDIとH12MDIを併用したNo.10〜14、成分(A)としてMDIとIPDIを併用したNo.17では、ゲル化強度と耐エタノール性能がともに実用性を有すると評価された。
(ポリウレタン水分散体No.19の製造)
反応器に、DC3000(成分(B)) 12.8部、UH−300(成分(C))170.6部、ジオクチル錫ジラウレート0.01部を仕込み、十分撹拌溶解し、MDI(成分(A)) 25.2部、H12MDI(成分(A))26.4部を加えて85℃で3時間反応させた。次に、60℃まで冷却した後、DMPA(成分(E))5.0部、1,4−ブタンジオール(成分(D))5.2部、NMP 61.3部、MEK 188.7部を加え、十分撹拌溶解し、ジオクチル錫ジラウレート0.04部を加え、80℃で8時間反応させ、イソシアネート値(固形分に対する残存イソシアネート基の重量含有量)が0.8%のプレポリマーを得た。このプレポリマーを、50℃まで冷却し、トリエチルアミン 3.8部を加えて中和し、次いで水470.9部を加えて転相乳化した。この乳化分散液に30% 6水和ピペラジン(成分(F))19.5部(残存イソシアネート基に対してアミン基として100当量%)を加えて乳化分散した。得られた乳化液を脱溶剤することにより、不揮発分25%、pH7.3のポリウレタン水分散体No.19を得た。
表5に示す原材料、配合処方を用いてポリウレタン水分散体No.19と同様の方法でポリウレタン水分散体No.20〜No.27を製造した。
表6から、EO含有量がおよそ2.8重量%以上になると、透湿性が実用性を有すると評価され、さらにEO含有量が増加するほど透湿性が向上する傾向にあった。
また、耐エタノール水性能は、通常は実用性を有すると評価されるが、EO含有量が増え過ぎて14重量%を超えると、実用性を有しなくなることが分かった。
(ポリウレタン水分散体No.28の製造)
反応器に、DC3000(成分(B))12.9部、UH−300(成分(C))180.2部、ジオクチル錫ジラウレート0.01部を仕込み、十分攪拌溶解し、ルプラネートMI(成分(A))29.0部、H12MDI(成分(A))15.4部を加えて85℃で3時間反応させた。次に、60℃まで冷却した後、DMPA(成分(E))5.0部、1,4−ブタンジオール(成分(D))3.0部、NMP 61.4部、MEK 313.6部を加え、十分攪拌溶解し、ジオクチル錫ジラウレート0.04部を加え、80℃で8時間反応させ、イソシアネート値(固形分に対する残存イソシアネート基の重量含有量)が0.9%のプレポリマーを得た。このプレポリマーを、50℃まで冷却し、トリエチルアミン 3.7部を加えて中和し、次いで水474.7部を加えて転相乳化した。この乳化分散液に30% 6水和ピペラジン(成分(F))20.5部(残存イソシアネート基に対してアミン基として100当量%)を加えて乳化分散した。得られた乳化液を脱溶剤することにより、不揮発分25%、pH7.3のポリウレタン水分散体No.28を得た。
表7に示す原材料、配合処方を用いてポリウレタン水分散体No.28と同様の方法でポリウレタン水分散体No.29とNo.30を製造した。
Claims (9)
- ジフェニルメタンジイソシアネート(a1)と脂環式ジイソシアネート(a2)とからなるポリイソシアネート(A)、
エチレンオキシドとテトラヒドロフランのランダム共重合体(B)、
数平均分子量が1000〜5000であるポリオール(C)、
数平均分子量が400以下である多価アルコール系鎖延長剤(D)及びカルボキシル基を有するジオール化合物(E)を反応させて得られるイソシアネート基末端プレポリマーを中和し、得られた中和物を水中に分散させた後、アミン系鎖延長剤(F)を用いて鎖延長反応させて得られ、
ポリウレタン水分散体中のポリウレタンに対して、エチレンオキシド単位(EO)の含有量が14重量%以下である、
凝固液と併用して得られるフィルム成形体用ポリウレタン水分散体。 - 成分(a1)と成分(a2)のモル比が、(a1)/(a2)=20/80〜80/20である、請求項1記載のポリウレタン水分散体。
- 成分(a2)が水素添加ジフェニルメタンジイソシアネート及びイソホロンジイソシアネートから選択される少なくとも1種である、請求項2記載のポリウレタン水分散体。
- 成分(B)の数平均分子量が800〜4000であり、エチレンオキシド単位(EO)とテトラヒドロフラン単位(THF)のモル比がEO/THF=80/20〜10/90である、請求項1〜3のいずれか記載のポリウレタン水分散体。
- ポリウレタン水分散体中のポリウレタンに対して、EO含有量が2.8重量%以上である、請求項4記載のポリウレタン水分散体。
- 成分(a1)中における2,4’−ジフェニルメタンジイソシアネート(2,4’−MDI)の含有量が40重量%以上である、請求項4記載のポリウレタン水分散体。
- 2,4’−MDIの含有量が70重量%以上である、請求項6記載のポリウレタン水分散体。
- 請求項1〜7のいずれかに記載のポリウレタン水分散体、及び凝固液を併用して得られるフィルム成形体。
- 請求項1〜7のいずれかに記載のポリウレタン水分散体、及び凝固液を併用して得られる手袋。
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| JP6267943B2 (ja) * | 2013-11-22 | 2018-01-24 | トーヨーポリマー株式会社 | ポリウレタン水分散体、及びそれから得られるフィルム成形体、手袋 |
| CN104497701B (zh) * | 2014-12-29 | 2017-06-16 | 安徽安利合成革股份有限公司 | 一种高物性环保水性印字料的制备方法及使用方法 |
| JP6631218B2 (ja) * | 2015-12-09 | 2020-01-15 | Dic株式会社 | 凝固物の製造方法 |
| KR101818751B1 (ko) | 2016-06-30 | 2018-01-15 | (주)네오켐스 | 장갑코팅용 폴리우레탄 수계 분산액, 이의 제조방법 및 이로 구현된 코팅장갑 |
| CN109937219B (zh) * | 2016-12-12 | 2022-06-28 | Dic株式会社 | 水性聚氨酯树脂组合物和合成皮革 |
| JP7086992B2 (ja) * | 2017-05-11 | 2022-06-20 | ダウ グローバル テクノロジーズ エルエルシー | 水性ポリウレタン分散接着剤組成物 |
| CN107964104B (zh) * | 2017-10-31 | 2021-05-11 | 上海华峰新材料研发科技有限公司 | 无溶剂水性聚氨酯分散体及其制备方法和应用 |
| CN110423459A (zh) * | 2019-07-31 | 2019-11-08 | 上海深禾聚合物材料有限公司 | 零dmf浸胶手套水性pu胶的制备方法 |
| JP2021091750A (ja) * | 2019-12-06 | 2021-06-17 | Dic株式会社 | 水性樹脂組成物、フィルム及び医療用貼付材 |
| CN115594813A (zh) * | 2022-08-19 | 2023-01-13 | 南京优迪新材料科技有限公司(Cn) | 水性聚氨酯分散体及一次性手套 |
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| US20140235786A1 (en) | 2014-08-21 |
| EP2746310B1 (en) | 2015-08-19 |
| EP2746310A4 (en) | 2014-10-22 |
| JPWO2013176257A1 (ja) | 2016-01-14 |
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| US9163161B2 (en) | 2015-10-20 |
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