JPWO2014157099A1 - 繊維強化複合材料の製造方法 - Google Patents
繊維強化複合材料の製造方法 Download PDFInfo
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- JPWO2014157099A1 JPWO2014157099A1 JP2015508495A JP2015508495A JPWO2014157099A1 JP WO2014157099 A1 JPWO2014157099 A1 JP WO2014157099A1 JP 2015508495 A JP2015508495 A JP 2015508495A JP 2015508495 A JP2015508495 A JP 2015508495A JP WO2014157099 A1 JPWO2014157099 A1 JP WO2014157099A1
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- polyamide
- reinforced composite
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- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
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- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 150000003222 pyridines Chemical class 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 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
- 229920002545 silicone oil Polymers 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 150000003510 tertiary aliphatic amines Chemical class 0.000 description 1
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- 229920001187 thermosetting polymer Polymers 0.000 description 1
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- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 description 1
- KOWVWXQNQNCRRS-UHFFFAOYSA-N tris(2,4-dimethylphenyl) phosphate Chemical compound CC1=CC(C)=CC=C1OP(=O)(OC=1C(=CC(C)=CC=1)C)OC1=CC=C(C)C=C1C KOWVWXQNQNCRRS-UHFFFAOYSA-N 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 125000005023 xylyl group Chemical group 0.000 description 1
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Abstract
Description
[式(A−1)中、R5は、炭素数1〜12の鎖状アルキル基、炭素数3〜8の環状アルキル基、炭素数6〜14のアリール基、又は炭素数1〜12の鎖状アルキル基若しくはハロゲンで置換されたアリール基を示す。結合手には水素原子が結合されていてもよい。]
[式(C−1)中、R1、R2、R3及びR4は水素原子又は炭化水素基を示し、R1、R2、R3又はR4が炭化水素基である場合、それらは炭素数1〜4の直鎖若しくは分岐のアルキル基である、又は、隣り合うR1及びR2若しくは隣り合うR3及びR4が結合して炭素数6〜10の置換若しくは無置換の芳香環又は炭素数6〜10の置換若しくは無置換の脂環構造を形成しており、xは、0又は1を示す。]
各実施例、比較例について、表1及び2に示す割合で原料を加熱混合し、粒子を含有しない第1の樹脂組成物(表中の「第1」の組成)と、粒子を含有する第2の樹脂組成物(表中の「第2」の組成)を得た。なお、ここで用いた原料は以下に示す通りである。
F−a(ビスフェノールF−アニリン型、四国化成工業(株)製)
P−a(フェノール−アニリン型、四国化成工業(株)製)
(B)成分:エポキシ樹脂
「セロキサイド」(登録商標)2021P((株)ダイセル製)
(C)成分:硬化剤
BPF(9,9−ビス(4−ヒドロキシフェニル)フルオレン、大阪ガスケミカル製)
BPC(1,1−ビス(4−ヒドロキシフェニル)シクロヘキサン、シグマ・アルドリッチ社製)
TDP(ビス(4−ヒドロキシフェニル)スルフィド、東京化成工業(株)製)
(D)成分:ポリアミド樹脂粒子
PA12(ポリアミド12、平均粒子径20μm、ダイセル・エボニック製)
PA1010(ポリアミド1010、平均粒子径20μm、ダイセル・エボニック製)
PA11(ポリアミド11、平均粒子径25μm、アルケマ製)
(E)成分:
YP−70(フェノキシ樹脂YP−70、新日鉄住金化学(株)製)
得られた第1及び第2の樹脂組成物をそれぞれ離型紙上に70〜100℃で塗布し、18g/m2の第1の樹脂フィルム及び25g/m2の第2の樹脂フィルムを得た。得られた第1の樹脂フィルムを、一方向に引き揃えた炭素繊維の上下から供給して繊維間に含浸し、炭素繊維層を形成した。続いて、第2の樹脂フィルムを炭素繊維層の上下からラミネートして表面層を形成し、プリプレグを作製した。このプリプレグの単位面積当たりの炭素繊維量は150g/m2であり、炭素繊維層及び表面層中の合計の樹脂組成物量(マトリックス樹脂量)は86g/m2であった。
上記(D)成分であるポリアミド樹脂粒子を、示差熱量計(DSC)を用いて、25℃から10℃/分の速度で昇温し、得られた吸熱ピークのトップをポリアミド樹脂粒子の融点とした。結果を表3に示す。また、例として、PA12、PA1010及びPA11のDSCチャートを図6に示す。図6中、(a)がPA12のDSCチャートであり、(b)がPA1010(2)のDSCチャートであり、(c)がPA11のDSCチャートである。
得られた第2の樹脂組成物を、示差熱量計(DSC)を用いて、25℃から10℃/分の速度で昇温し、得られた吸熱ピークのトップを第2の樹脂組成物中でのポリアミド樹脂粒子の融点(M1)とした。結果を表1に示す。また、一例として、実施例2、5及び7の第2の樹脂組成物のDSCチャートを図7に示す。なお、実施例7は、実施例5と同様のDSCチャートが得られた。図7中、(a)が実施例2の第2の樹脂組成物のDSCチャートであり、(b)が実施例5の第2の樹脂組成物のDSCチャートであり、(c)が実施例7の第2の樹脂組成物のDSCチャートである。
得られた第2の樹脂組成物を、180℃のオーブン中で2時間硬化して樹脂硬化物を得た。得られた硬化物を、示差熱量計(DSC)を用いて、JIS K7121(1987)に基づいて求めた中間点温度をガラス転移温度として測定した。結果を表1及び2に示す。
得られた第2の樹脂組成物を、180℃の温度で2時間硬化させ、厚さ2mmの樹脂硬化物を得た。この樹脂硬化物をJIS J 7171に従い曲げ弾性率測定を行った。結果を表1に示す。
得られたプリプレグを、[+45°/0°/−45°/90°]4s構成で、擬似等方的に32プライ積層し、オートクレーブにて、圧力0.6MPa、室温から2℃/分で表1及び2に示す温度まで昇温した後、同温で表1及び2に示す時間保持する第1ステップを行った。続いて、圧力0.6MPa、室温から2℃/分で180℃まで昇温した後、同温で2時間加熱硬化し、CFRPを得た。比較例1及び2については、圧力0.6MPa、室温から2℃/分で180℃まで昇温した後、同温で2時間加熱硬化し、CFRPを得た。
繊維強化複合材料中の任意の炭素繊維が伸びる方向に直交する面で繊維強化複合材料を切断したときの切断面を顕微鏡観察(500倍)により分析し、500μm×100μmの範囲について画像解析を行うことでポリアミド粒子の分布を観察することにより、炭素繊維層間の1つの樹脂硬化物に含まれるポリアミド樹脂の含有量C1と、1つの炭素繊維層内に含まれるポリアミド樹脂の含有量C2とを算出した。この測定を、異なる炭素繊維層及び樹脂硬化物の組み合わせとなる任意の5箇所について行い、C1及びC2の5箇所の平均値を用いて、1プリプレグ当たりのC1の容量割合{C1/(C1+C2)}×100を求めた。結果を表1に示す。
Claims (3)
- 強化繊維と、前記強化繊維の繊維間に含浸された、(A)ベンゾオキサジン樹脂、(B)エポキシ樹脂、及び、(C)分子中に2個以上のフェノール性水酸基を有する硬化剤を含有する樹脂組成物と、を含む強化繊維層と、前記強化繊維層の少なくとも一方の表面上に設けられた、(A)ベンゾオキサジン樹脂、(B)エポキシ樹脂、(C)分子中に2個以上のフェノール性水酸基を有する硬化剤、及び、(D)平均粒子径が5〜50μmであり、融点が175〜210℃であるポリアミド樹脂粒子を含有する表面層と、を備えるプリプレグを複数積層し、
前記表面層を構成する組成中で測定される前記ポリアミド樹脂粒子の融点をM1℃としたときに、120℃以上M1℃未満の温度で加熱する第1ステップと、
第1ステップの後にM1℃以上の温度で加熱して樹脂硬化する第2ステップと、
を備える、繊維強化複合材料の製造方法。 - 前記表面層は、前記(A)成分と前記(B)成分との合計を100質量部としたときに、前記(A)成分を65〜80質量部、前記(B)成分を20〜35質量部、前記(C)成分を5〜20質量部、及び前記(D)成分を15〜45質量部含有する、請求項1に記載の繊維強化複合材料の製造方法。
- 前記(D)成分が、ポリアミド12樹脂粒子、ポリアミド1010樹脂粒子又はポリアミド11樹脂粒子を含む、請求項1又は2に記載の繊維強化複合材料の製造方法。
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JP2007016121A (ja) * | 2005-07-07 | 2007-01-25 | Toray Ind Inc | 複合材料用プリプレグおよび複合材料 |
JP2010525101A (ja) * | 2007-04-17 | 2010-07-22 | ヘクセル コーポレイション | 熱可塑性粒子のブレンドを含む複合材料 |
JP2009286895A (ja) * | 2008-05-29 | 2009-12-10 | Mitsubishi Rayon Co Ltd | プリプレグおよび繊維強化複合材料の成形方法 |
WO2010092723A1 (ja) * | 2009-02-12 | 2010-08-19 | 新日本石油株式会社 | ベンゾオキサジン樹脂組成物 |
JP2012036347A (ja) * | 2010-08-11 | 2012-02-23 | Jx Nippon Oil & Energy Corp | ベンゾオキサジン樹脂組成物及び繊維強化複合材料 |
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EP2980133A4 (en) | 2016-11-23 |
US20160083541A1 (en) | 2016-03-24 |
KR20150135270A (ko) | 2015-12-02 |
CN105102513A (zh) | 2015-11-25 |
JP6278950B2 (ja) | 2018-02-14 |
WO2014157099A1 (ja) | 2014-10-02 |
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