JP2022011688A - 樹脂組成物及びその硬化物 - Google Patents
樹脂組成物及びその硬化物 Download PDFInfo
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- JP2022011688A JP2022011688A JP2020112994A JP2020112994A JP2022011688A JP 2022011688 A JP2022011688 A JP 2022011688A JP 2020112994 A JP2020112994 A JP 2020112994A JP 2020112994 A JP2020112994 A JP 2020112994A JP 2022011688 A JP2022011688 A JP 2022011688A
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- Prior art keywords
- epoxy resin
- resin composition
- resin
- cured product
- epoxy
- Prior art date
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- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 23
- 230000001588 bifunctional effect Effects 0.000 claims abstract description 9
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 3
- 239000004593 Epoxy Substances 0.000 claims description 9
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 2
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- HDPBBNNDDQOWPJ-UHFFFAOYSA-N 4-[1,2,2-tris(4-hydroxyphenyl)ethyl]phenol Chemical compound C1=CC(O)=CC=C1C(C=1C=CC(O)=CC=1)C(C=1C=CC(O)=CC=1)C1=CC=C(O)C=C1 HDPBBNNDDQOWPJ-UHFFFAOYSA-N 0.000 description 2
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Abstract
Description
(但し、Rは独立して水素原子(H)または炭素数1~6のアルキル基であり、n=0~20の数を表し、n=0の比率がGPC面積%で15%以下である。)
(式中、Xは直接結合、-O-、-S-、-SO2-、-CO-、または二価の炭素数1~12の炭化水素基を示し、Gはグリシジル基を示し、mは0または1の数を示す。)
100mLの共栓付フラスコに約6mg/eqの試料を精秤し、無水酢酸/ピリジン=3/1(容量比)で混合した試薬を3mL加え、冷却管を付け、ホットプレートで5分間加熱還流させ、5分間の放冷の後、1mLの水を加える。その液を、0.5mol/LのKOH/MeOH溶液で電位差滴定する事で算出した。
電位差滴定装置を用い、溶媒としてメチルエチルケトンを使用し、臭素化テトラエチルアンモニウム酢酸溶液を加え、電位差滴定装置にて0.1mol/L過塩素酸-酢酸溶液を用いて測定した。
示差走査熱量分析装置(エスアイアイ・ナノテクノロジー株式会社製 EXSTAR6000 DSC/6200)により、昇温速度5℃/分の条件で、DSCピーク温度を求めた。すなわち、このDSCピーク温度を樹脂の融点とした。
BROOKFIELD製、CAP2000H型回転粘度計を用いて、150℃にて測定した。
JIS-K-2207に従い環球法にて測定した。
本体(東ソー株式会社製、HLC-8220GPC)にカラム(東ソー株式会社製、TSKgelG4000HXL、TSKgelG3000HXL、TSKgelG2000HXL)を直列に備えたものを使用し、カラム温度は40℃にした。また、溶離液にはテトラヒドロフラン(THF)を使用し、1mL/分の流速とし、検出器は示差屈折率検出器を使用した。測定試料はサンプル0.1gを10mLのTHFに溶解し、マイクロフィルターで濾過したものを50μL使用した。データ処理は、東ソー株式会社製GPC-8020モデルIIバージョン6.00を使用した。
熱機械測定装置(エスアイアイ・ナノテクノロジー株式会社製 EXSTAR6000TMA/6100)により、昇温速度10℃/分の条件でTgを求めた。
熱伝導率は、NETZSCH製LFA447型熱伝導率計を用いて非定常熱線法により測定した。
ディーンスターク管を取り付けたフラスコに、カテコール300.0g、純度85%のパラホルムアルデヒド28.9g、ジエチレングリコールジメチルエーテル263.1gを仕込み、窒素気流下、攪拌しながら100℃程度まで昇温して溶解させた。次にp-トルエンスルホン酸0.33gを加えて160℃まで昇温し、脱水させながら6時間反応させて、多価ヒドロキシ樹脂を生成させた。ジエチレングリコールジメチルエーテルと未反応のカテコールを180℃、10Torrで1時間かけて留去し、メチルイソブチルケトンを加えた後、中和、水洗、濾過を行い、次にメチルイソブチルケトンを減圧留去し、多価ヒドロキシ樹脂251.2gを得た。この多価ヒドロキシ樹脂AのOH当量は78g/eq.、軟化点は110℃、溶融粘度は3.2Pa・sであり、カテコールモノマーの含有量はGPC面積%で3.5%であった。数平均分子量は461であった。
ディーンスターク管を取り付けたフラスコに、カテコール300.0g、純度85%のパラホルムアルデヒド28.9g、トルエン263.1gを仕込み、窒素気流下、攪拌しながら100℃程度まで昇温して溶解させた。次にp-トルエンスルホン酸0.33gを加えて110℃まで昇温し、脱水させながら6時間反応させて、多価ヒドロキシ樹脂を生成させた。中和、水洗、濾過を行い、次にトルエンを減圧留去し、多価ヒドロキシ樹脂297.3gを得た。この多価ヒドロキシ樹脂BのOH当量は70g/eq.、軟化点は40℃、溶融粘度は0.07Pa・sであり、カテコールモノマーの含有量はGPC面積%で35.0%であった。数平均分子量は339であった。
ディーンスターク管を取り付けたフラスコに、レゾルシン300.0g、純度85%のパラホルムアルデヒド28.9g、トルエン263.1gを仕込み、窒素気流下、攪拌しながら100℃程度まで昇温して溶解させた。次にp-トルエンスルホン酸0.33gを加えて110℃まで昇温し、脱水させながら6時間反応させて、多価ヒドロキシ樹脂を生成させた。中和、水洗、濾過を行い、次にトルエンを減圧留去し、多価ヒドロキシ樹脂295.1gを得た。この多価ヒドロキシ樹脂CのOH当量は70g/eq.、軟化点は42℃、溶融粘度は0.10Pa・sであり、レゾルシンモノマーの含有量はGPC面積%で35.0%であった。数平均分子量は325であった。
ヒドロキノン50.0g、4,4’-ジヒドロキシビフェニル100.0gをエピクロルヒドリン1000g、ジエチレングリコールジメチルエーテル150gに溶解し、60℃にて48%水酸化ナトリウムを16.5g加え1時間攪拌した。その後、減圧下(約130Torr)、48%水酸化ナトリウム水溶液148.8gを3時間かけて滴下した。この間、生成する水はエピクロルヒドリンとの共沸により系外に除き、留出したエピクロルヒドリンは系内に戻した。滴下終了後、さらに1時間反応を継続して脱水後、エピクロルヒドリンを留去し、メチルイソブチルケトン600gを加えた後、水洗により塩を除いた。その後、85℃にて48%水酸化ナトリウムを13.5g添加して1時間攪拌し、温水200mLで水洗した。その後、分液により水を除去後、メチルイソブチルケトンを減圧留去し、白色結晶状の変性エポキシ樹脂(エポキシ樹脂A)224gを得た。エポキシ当量は138であり、加水分解性塩素は320ppm、キャピラリー法による融点は10
4℃から141℃であり、150℃での粘度は3.4mPa・sであった
エポキシ樹脂成分として、合成例4のエポキシ樹脂(エポキシ樹脂A)、4,4’-ジヒドロキシジフェニルエーテルのエポキシ化物(エポキシ樹脂B:日鉄ケミカル&マテリアル(株)製、YSLV-80DE163g/eq.)、ビフェニル系エポキシ樹脂(エポキシ樹脂C:ジャパンエポキシレジン製、YX-4000H、エポキシ当量188g/eq.)、又はビスフェノールA型エポキシ樹脂(エポキシ樹脂D:日鉄ケミカル&マテリアル(株)製、YD-128、エポキシ当量190g/eq.)を使用し、硬化剤として、合成例1の多価ヒドロキシ樹脂A(硬化剤A)、合成例2の多価ヒドロキシ樹脂B(硬化剤B)、合成例3の多価ヒドロキシ樹脂C(硬化剤C)、ハイドロキノン(硬化剤D)、またはフェノールノボラック樹脂(硬化剤E:水酸基当量105、軟化点67℃)を使用した。また、硬化促進剤としてトリフェニルホスフィンを使用し、表1に示す配合でエポキシ樹脂組成物を得た。表中の数値は配合における重量部を示す。このエポキシ樹脂組成物を用いて175℃にて成形し、175℃にて5時間ポストキュアを行い、硬化物試験片を得た後、各種物性測定に供した。
Claims (4)
- (B)エポキシ樹脂成分が、エポキシ当量200g/eq.以下である請求項1に記載のエポキシ樹脂組成物。
- 請求項1~3に記載のいずれかのエポキシ樹脂組成物を硬化させたことを特徴とするエポキシ樹脂硬化物。
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