JP7360511B2 - 熱可塑性樹脂エマルジョン、繊維集束用組成物、及びこれを用いた樹脂含浸繊維、成形品 - Google Patents
熱可塑性樹脂エマルジョン、繊維集束用組成物、及びこれを用いた樹脂含浸繊維、成形品 Download PDFInfo
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- JP7360511B2 JP7360511B2 JP2022104038A JP2022104038A JP7360511B2 JP 7360511 B2 JP7360511 B2 JP 7360511B2 JP 2022104038 A JP2022104038 A JP 2022104038A JP 2022104038 A JP2022104038 A JP 2022104038A JP 7360511 B2 JP7360511 B2 JP 7360511B2
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Description
[1]樹脂含浸繊維と熱可塑性樹脂とが複合化した繊維強化熱可塑性樹脂複合材料の製造において、複数の繊維を集束して前記樹脂含浸繊維を製造するための繊維集束用組成物に配合される熱可塑性樹脂エマルジョンであり、芳香族ビニル系単量体40~98.5重量%と、前記芳香族ビニル系単量体と共重合可能な他の単量体1.5~60重量%との共重合体を含有し、前記共重合体の平均粒子径が、70nm以上150nm以下である熱可塑性樹脂エマルジョン。
[2]上記[1]に記載の熱可塑性樹脂エマルジョンを含有する繊維集束用組成物。
[3]上記[2]に記載の繊繊維集束用組成物で集束された樹脂含浸繊維。
[4]上記[3]に記載の樹脂含浸繊維と熱可塑性樹脂からなる積層品を成形してなる成形品。
光子相関法による平均粒子径の測定によって行い、FPAR-1000(大塚電子製)を使用し、JIS Z8826に準拠した方法で測定した。
各実施例及び比較例で得られた試験片を用い、JIS K7074に準じて得られた曲げ応力-歪曲線図において、終点を5%歪とし、応力-歪曲線に囲まれた面積で求めた。単位:J
曲げ強度
各実施例及び比較例で得られた試験片を用い、JIS K7074に準じて曲げ強度を測定した。単位:MPa
<熱可塑性樹脂エマルジョン(1)>
耐圧性の重合反応機に、脱イオン水100部を添加した後、窒素置換を行った。スチレン88部、アクリロニトリル10部、t-ドデシルメルカプタン0.7部からなる単量体混合物A100部を準備し、これを単量体混合物A100重量%あたり5重量%の単量体混合物A-1と95重量%の単量体混合物A-2に分けた。
耐圧性の重合反応機に、脱イオン水120部を添加した後、窒素置換を行った。スチレン88部、アクリロニトリル10部、t-ドデシルメルカプタン0.8部からなる単量体混合物A100部を準備し、これを単量体混合物A100重量%あたり5重量%の単量体混合物A-1と95重量%の単量体混合物A-2に分けた。
耐圧性の重合反応機に、脱イオン水140部を添加した後、窒素置換を行った。スチレン88部、アクリロニトリル10部、t-ドデシルメルカプタン0.8部からなる単量体混合物A100部を準備し、これを単量体混合物A100重量%あたり5重量%の単量体混合物A-1と95重量%の単量体混合物A-2に分けた。
耐圧性の重合反応機に、脱イオン水190部を添加した後、窒素置換を行った。スチレン88部、アクリロニトリル10部、t-ドデシルメルカプタン0.8部からなる単量体混合物A100部を準備し、これを単量体混合物A100重量%あたり5重量%の単量体混合物A-1と95重量%の単量体混合物A-2に分けた。
耐圧性の重合反応機に、脱イオン水45部を添加した後、窒素置換を行った。スチレン88部、アクリロニトリル10部、t-ドデシルメルカプタン0.8部からなる単量体混合物A100部を準備し、これを単量体混合物A100重量%あたり5重量%の単量体混合物A-1と95重量%の単量体混合物A-2に分けた。
耐圧性の重合反応機に、脱イオン水45部を添加した後、窒素置換を行った。スチレン88部、アクリロニトリル10部、t-ドデシルメルカプタン0.8部からなる単量体混合物A100部を準備し、これを単量体混合物A100重量%あたり5重量%の単量体混合物A-1と95重量%の単量体混合物A-2に分けた。
布引装置を用いて、繊維集束用組成物(1)(固形分換算)を炭素繊維100重量部に対して付着量が15重量部となるように含浸させ、その後得られた連続樹脂含浸繊維を180℃に調整した乾燥炉内を1m/分の速さで3分間移動させることにより、水分を完全に除去し、最終の連続樹脂含浸繊維(1)を得た。
繊維集束用組成物(1)を繊維集束用組成物(2)~(6)に変更した以外は連続樹脂含浸繊維(1)と同じ製法で、連続樹脂含浸繊維(2)~(6)を得た。
<連続樹脂含浸繊維と熱可塑性樹脂からなる積層品の製造方法>
連続樹脂含浸繊維を20cm角のシートとなるように複数枚並列させた後、ポリアミド樹脂フィルム(東レフィルム加工株式会社製 レイファン(登録商標)N0 1401 厚み40μm)と炭素繊維含量が30重量%になるように交互に積層させ、設定温度250℃の圧縮成型機NF37型を用いて、圧力5MPaをかけた状態で余熱を5分間行った後、圧力15MPaをかけた状態で5分間熱プレス処理を行い、厚みが2mmの積層品を作製した。また、得られた積層品から幅15mm×長さ150mmの試験片を切り出し曲げ試験用試験片とした。
Claims (4)
- 樹脂含浸繊維と熱可塑性樹脂とが複合化した繊維強化熱可塑性樹脂複合材料の製造において、複数の繊維を集束して前記樹脂含浸繊維を製造するための繊維集束用組成物に配合される熱可塑性樹脂エマルジョンであり、
芳香族ビニル系単量体80~94重量%と、前記芳香族ビニル系単量体と共重合可能な他の単量体との共重合体を含有し、前記他の単量体は、シアン化ビニル系単量体5~15重量%と、エチレン系不飽和カルボン酸単量体1~5重量%とを含有し、
前記共重合体の平均粒子径が、70nm以上127nm以下であることを特徴とする熱可塑性樹脂エマルジョン。 - 請求項1に記載の熱可塑性樹脂エマルジョンを含有することを特徴とする繊維集束用組成物。
- 請求項2に記載の繊維集束用組成物で集束された樹脂含浸繊維。
- 請求項3に記載の樹脂含浸繊維からなる層と熱可塑性樹脂層を含む積層体を成形してなる成形品。
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Citations (2)
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JP2004176227A (ja) | 2002-11-28 | 2004-06-24 | Nippon A & L Kk | 繊維収束用水性組成物および炭素繊維ストランド |
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