JPWO2019163577A1 - 硬化性組成物及び繊維強化複合材料 - Google Patents
硬化性組成物及び繊維強化複合材料 Download PDFInfo
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- JPWO2019163577A1 JPWO2019163577A1 JP2019534985A JP2019534985A JPWO2019163577A1 JP WO2019163577 A1 JPWO2019163577 A1 JP WO2019163577A1 JP 2019534985 A JP2019534985 A JP 2019534985A JP 2019534985 A JP2019534985 A JP 2019534985A JP WO2019163577 A1 JPWO2019163577 A1 JP WO2019163577A1
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- epoxy resin
- curable composition
- fiber
- urethane
- mass
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- ANSXAPJVJOKRDJ-UHFFFAOYSA-N furo[3,4-f][2]benzofuran-1,3,5,7-tetrone Chemical compound C1=C2C(=O)OC(=O)C2=CC2=C1C(=O)OC2=O ANSXAPJVJOKRDJ-UHFFFAOYSA-N 0.000 description 1
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- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 1
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- 239000000314 lubricant Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
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- VYKXQOYUCMREIS-UHFFFAOYSA-N methylhexahydrophthalic anhydride Chemical compound C1CCCC2C(=O)OC(=O)C21C VYKXQOYUCMREIS-UHFFFAOYSA-N 0.000 description 1
- LATKICLYWYUXCN-UHFFFAOYSA-N naphthalene-1,3,6-tricarboxylic acid Chemical compound OC(=O)C1=CC(C(O)=O)=CC2=CC(C(=O)O)=CC=C21 LATKICLYWYUXCN-UHFFFAOYSA-N 0.000 description 1
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- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- DGTNSSLYPYDJGL-UHFFFAOYSA-N phenyl isocyanate Chemical compound O=C=NC1=CC=CC=C1 DGTNSSLYPYDJGL-UHFFFAOYSA-N 0.000 description 1
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
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- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 description 1
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- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
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- 239000002904 solvent Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 125000001174 sulfone group Chemical group 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- ADXGNEYLLLSOAR-UHFFFAOYSA-N tasosartan Chemical compound C12=NC(C)=NC(C)=C2CCC(=O)N1CC(C=C1)=CC=C1C1=CC=CC=C1C=1N=NNN=1 ADXGNEYLLLSOAR-UHFFFAOYSA-N 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- UFDHBDMSHIXOKF-UHFFFAOYSA-N tetrahydrophthalic acid Natural products OC(=O)C1=C(C(O)=O)CCCC1 UFDHBDMSHIXOKF-UHFFFAOYSA-N 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 125000000101 thioether group Chemical group 0.000 description 1
- 125000003396 thiol group Chemical group [H]S* 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
- NFMWFGXCDDYTEG-UHFFFAOYSA-N trimagnesium;diborate Chemical compound [Mg+2].[Mg+2].[Mg+2].[O-]B([O-])[O-].[O-]B([O-])[O-] NFMWFGXCDDYTEG-UHFFFAOYSA-N 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- AVWRKZWQTYIKIY-UHFFFAOYSA-N urea-1-carboxylic acid Chemical compound NC(=O)NC(O)=O AVWRKZWQTYIKIY-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- 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
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Abstract
Description
測定装置:東ソー株式会社製 HLC−8220GPC
カラム :東ソー株式会社製ガードカラム「HXL−L」
+東ソー株式会社製「TSK−GEL G2000HXL」
+東ソー株式会社製「TSK−GEL G2000HXL」
+東ソー株式会社製「TSK−GEL G3000HXL」
+東ソー株式会社製「TSK−GEL G4000HXL」
検出器 :RI(示差屈折計)
測定条件:カラム温度 40℃
溶媒 THF
流速 1.0ml/min
標準 :ポリスチレン標準試料にて検量線作成
試料 :樹脂固形分換算で0.1質量%のTHF溶液をマイクロフィルターでろ過したもの(注入量:200μl)
1.フラスコ内に水酸基含有エポキシ樹脂(a3)約100gと無水ジメチルホルムアルデヒド25mLを加え、溶解させた。
2.ジブチル錫ラウレート約30mgと、フェニルイソシアネート無水トルエン溶液(1mol/L)20mLを加え、フラスコを50℃の湯浴に漬けて60分間撹拌した。
3.ジブチルアミン無水トルエン溶液(2mol/L)20mLを加え、室温で30分撹拌した。
4.メチルセロソルブ30mL、ブロムクレゾールグリーン指示薬0.5mLを加え、過塩素酸メチルセロソルブ溶液(1mol/L)を用いて滴定した。同時にブランク測定も行った。
5.下記計算式にて水酸基含有エポキシ樹脂(a3)の水酸基当量を計算した。
(水酸基当量(g/当量))=1000×(水酸基含有エポキシ樹脂(a3)のサンプル量[g])/[(過塩素酸メチルセロソルブ溶液濃度[1mol/L])×{(水酸基含有エポキシ樹脂(a3)溶液の滴定量[mL])−(ブランクの滴定量[mL])}]
方法1:全ての反応原料を一括で仕込んで反応させる方法
方法2:前記ポリイソシアネート化合物(a1)、前記ポリエステルポリオール(a2)及び必要に応じて用いるその他のポリオール化合物を反応させてイソシアネート基含有中間体を得、次いで前記水酸基含有エポキシ樹脂(a3)を反応させる方法
方法3:前記ポリイソシアネート化合物(a1)と前記酸基含有エポキシ樹脂(a3)とを反応させてイソシアネート基含有中間体を得、次いで前記ポリエステルポリオール(a2)及び必要に応じて用いるその他のポリオール化合物を反応させる方法
方法4:前記ポリイソシアネート化合物(a1)、前記ポリエステルポリオール(a2)の一部乃至全部、前記水酸基含有エポキシ樹脂(a3)の一部乃至全部、及び必要に応じて用いるその他のポリオール化合物の一部乃至全部を反応させてイソシアネート基含有中間体を得、次いで、前記ポリエステルポリオール(a2)、前記水酸基含有エポキシ樹脂(a3)、前記その他のポリオール化合物の残りを反応させる方法
窒素導入管、冷却管、温度計および撹拌機をセットした4つ口フラスコに、イソホロンジイソシアネート29質量部を仕込み、80℃まで加熱した。次いで、ポリエステルジオール(エチレングリコールとアジピン酸とを反応原料とする。水酸基価55mgKOH/g、数平均分子量(Mn)2000)161質量部を加えた。その後、ウレタン化触媒(日東化成株式会社製「ネオスタンU−28」)0.1質量部を添加し、更に2時間反応させて、イソシアネート基含有量が2.1質量%である中間体(1)を得た。
次いで、ビスフェノールA型エポキシ樹脂(DIC株式会社製「エピクロン850−S」、エポキシ当量188g/当量、水酸基当量2900g/当量)342質量部を加え、80℃の温度条件下、イソシアネート基の消失を確認するまで反応させてウレタン変性エポキシ樹脂(A−1)を得た。ウレタン変性エポキシ樹脂(A−1)のエポキシ当量は293g/当量であった。
窒素導入管、冷却管、温度計および撹拌機をセットした4つ口フラスコに、トリレンジイソシアネート23質量部を仕込み、80℃まで加熱した。次いで、ポリエステルジオール(エチレングリコールとアジピン酸とを反応原料とする。水酸基価55mgKOH/g、数平均分子量(Mn)2000)156質量部を加えた。その後、ウレタン化触媒(日東化成株式会社製「ネオスタンU−28」)0.1質量部を添加し、更に2時間反応させて、イソシアネート基含有量が1.8質量%である中間体(2)を得た。
次いで、ビスフェノールA型エポキシ樹脂(DIC株式会社製「エピクロン850−S」、エポキシ当量188g/当量、水酸基当量2900g/当量)341質量部を加え、80℃の温度条件下、イソシアネート基の消失を確認するまで反応させてウレタン変性エポキシ樹脂(A−2)を得た。ウレタン変性エポキシ樹脂(A−2)のエポキシ当量は287g/当量であった。
窒素導入管、冷却管、温度計および撹拌機をセットした4つ口フラスコに、トリレンジイソシアネート24質量部を仕込み、80℃まで加熱した。次いで、1,4−ブタンジオール型エポキシ樹脂(ナガセケムテックス株式会社製「デナコールEX−214」、エポキシ当量137g/当量、水酸基当量1460g/当量)88.8質量部と、ポリエステルジオール(エチレングリコールとアジピン酸とを反応原料とする。水酸基価55mgKOH/g、数平均分子量(Mn)2000)165質量部を加えた。その後、ウレタン化触媒(日東化成株式会社製「ネオスタンU−28」)0.1質量部を添加し、更に2時間反応させて、イソシアネート基含有量が0.8質量%である中間体(3)を得た。
次いで、ビスフェノールA型エポキシ樹脂(DIC株式会社製「エピクロン850−S」、エポキシ当量188g/当量、水酸基当量2900g/当量)543質量部を加え、80℃の温度条件下、イソシアネート基の消失を確認するまで反応させてウレタン変性エポキシ樹脂(A−3)を得た。ウレタン変性エポキシ樹脂(A−3)のエポキシ当量は202g/当量であった。
窒素導入管、冷却管、温度計および撹拌機をセットした4つ口フラスコに、トリレンジイソシアネート23質量部を仕込み、80℃まで加熱した。次いで、ポリエステルジオール(ヘキサメチレングリコールとアジピン酸とを反応原料とする。水酸基価55mgKOH/g、数平均分子量(Mn)2000)159質量部加えた。その後、ウレタン化触媒(日東化成株式会社製「ネオスタンU−28」)0.1質量部を添加し、更に2時間反応させて、イソシアネート基含有量が1.8質量%である中間体(4)を得た。
窒素導入管、冷却管、温度計および撹拌機をセットした4つ口フラスコに、イソホロンジイソシアネート29質量部を仕込み、80℃まで加熱した。次いで、ポリエステルジオール(エチレングリコールとアジピン酸とを反応原料とする。水酸基価55mgKOH/g、数平均分子量(Mn)2000)161質量部を加えた。その後、ウレタン化触媒(日東化成株式会社製「ネオスタンU−28」)0.1質量部を添加し、更に2時間反応させて、イソシアネート基含有量が2.0質量%である中間体(1)を得た。
次いで、ビスフェノールA型エポキシ樹脂(DIC株式会社製「エピクロン850−S」、エポキシ当量188g/当量、水酸基当量2900g/当量)342質量部、1,4−ブタンジオール型エポキシ樹脂(ナガセケムテックス株式会社製「デナコールEX−214」、エポキシ当量137g/当量、水酸基当量1460g/当量)188質量部、トリメチロールプロパン型エポキシ樹脂(ナガセケムテックス株式会社製「デナコールEX−321」、エポキシ当量140g/当量、水酸基当量695g/当量)280質量部を加え、80℃の温度条件下、イソシアネート基の消失を確認するまで反応させてウレタン変性エポキシ樹脂(A−5)を得た。ウレタン変性エポキシ樹脂(A−5)のエポキシ当量は190g/当量であった。
下記表1に示す配合に従って各成分を配合し、均一に撹拌混合して、硬化性組成物を得た。該硬化性組成物について、下記の要領で各種評価試験を行った。結果を表1に示す。
・脂肪族ポリオール型エポキシ樹脂(C−1):ナガセケムテックス株式会社製「デナコールEX−214」、1,4−ブタンジオール型エポキシ樹脂、エポキシ当量137g/当量、
・脂肪族ポリオール型エポキシ樹脂(C−2):ナガセケムテックス株式会社製「デナコールEX−321」、トリメチロールプロパン型エポキシ樹脂、エポキシ基当量140g/当量
・ビスフェノールA型エポキシ樹脂:DIC株式会社製「EPICLON 850−S」エポキシ当量188g/当量
・酸無水物(B−1):無水メチルテトラヒドロフタル酸(DIC株式会社製「EPICLON B−570−H」)
・硬化促進剤:N,N−ジメチルベンジルアミン
フィラメントワインディング装置を用い、炭素繊維(東レ株式会社製、「T700SC−12,000」)に硬化性組成物を含浸させながら巻き取り、120℃で2時間、次いで140℃で2時間加熱硬化させ、繊維体積含有率(Vf)60%、厚さ2mmの繊維強化樹脂成形物を得た。この板を切断し、JIS K7161に準拠して引っ張り試験を実施した。
200mm×100mm×6mmの型枠に硬化性組成物を流し込み、120℃で2時間、次いで140℃で2時間加熱硬化させ、硬化物を得た。得られた硬化物について、ASTM D 5045に準拠し、KICの値を測定した。
Claims (11)
- ウレタン変性エポキシ樹脂(A)を主剤の必須成分とし、酸無水物(B)を硬化剤の必須成分とする硬化性組成物であって、前記ウレタン変性エポキシ樹脂(A)が、ポリイソシアネート化合物(a1)、ポリエステルポリオール(a2)及び水酸基含有エポキシ樹脂(a3)を必須の反応原料とする反応生成物であることを特徴とする硬化性組成物。
- 前記ポリエステルポリオール(a2)が、数平均分子量(Mn)500〜4,000のポリエステルジオールである請求項1記載の硬化性組成物。
- 前記ポリエステルポリオール(a2)のポリオール原料の80質量%以上が、炭素原子数2〜8の直鎖の脂肪族ジオール化合物である請求項1記載の硬化性組成物。
- 前記ポリイソシアネート化合物(a1)のイソシアネート基含有量が、35質量%以上である請求項1記載の硬化性組成物。
- 前記主剤が含有するエポキシ樹脂成分の総質量に対する前記ウレタン変性エポキシ樹脂(A)の割合が、30〜100質量%の範囲である請求項1記載の硬化性組成物。
- 前記主剤が、前記ウレタン変性エポキシ樹脂(A)の他、脂肪族エポキシ樹脂を含有する請求項1記載の硬化性組成物。
- 前記ウレタン変性エポキシ樹脂(A)と、前記脂肪族エポキシ樹脂との質量比[ウレタン変性エポキシ樹脂(A)/脂肪族エポキシ樹脂]が、30/70〜100/0の範囲である請求項6記載の硬化性組成物。
- 請求項1〜7の何れか1項記載の硬化性組成物の硬化物。
- 請求項1〜7の何れか1項記載の硬化性組成物と、強化繊維とを必須成分とする繊維強化複合材料。
- 請求項8記載の硬化物と強化繊維とを必須成分とする繊維強化樹脂成形品。
- 請求項9記載の繊維強化複合材料を熱硬化させる繊維強化樹脂成形品の製造方法。
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