JP7258982B2 - 熱硬化性樹脂材料、プリプレグ及び金属基板 - Google Patents
熱硬化性樹脂材料、プリプレグ及び金属基板 Download PDFInfo
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Description
本発明に係る樹脂組成物は、10~30重量%のポリフェニレンエーテル樹脂と、40~60重量%のシアネート樹脂と、20~40重量%のビスマレイミド樹脂とを含む。前記比率で前記成分を添加することにより、本発明に係る樹脂組成物は、良好な耐熱性及び誘電特性を有すると共に、所望のガラス転移温度及び剥離強度を満たすことができる。
熱硬化性樹脂材料の総重量を100重量%として、無機フィラーの添加量は、40~70重量%である。無機フィラーの添加により、樹脂組成物の粘度を低減させ、樹脂組成物の機械強度を向上させ、且つ熱硬化性樹脂材料の誘電特性及び誘電正接を低減させることができる。
樹脂組成物の総重量100重量部に対して、難燃剤の添加量は、5~15重量部である。難燃剤の添加により、熱硬化性樹脂材料の難燃性を向上させることができる。例えば、難燃剤は、リン系難燃剤又は臭素系難燃剤であってもよい。また、リン系難燃剤として、リン酸エステル系(sulphosuccinic acid ester)、ホスファゼン系(phosphazene)、ポリリン酸アンモニウム系、ポリリン酸メラミン系(melamine polyphosphate)、シアヌル酸メラミン(melamine cyanurate)又はそれらの組み合わせであってもよいが、本発明はこれに制限されるものではない。例えば、臭素系難燃剤として、エチレンビス(テトラブロモフタルイミド)(ethylene bistetrabromophthalimide)、テトラデカブロモジフェノキシベンゼン(tetradecabromodiphenoxy benzene)、デカブロモジフェノキシオキシド(decabromo diphenoxy oxide)又はそれらの組み合わせであってもよいが、本発明はこれに制限されるものではない。
樹脂組成物の総重量100重量部に対して、硬化剤の添加量は、0.05~1.5重量部であり、硬化開始剤の添加量は、0.05~1.5重量部である。硬化剤及び硬化開始剤の添加により、熱硬化性樹脂材料の硬化を促進させることができる。
本発明の有利な効果として、本発明に係る熱硬化性樹脂材料、プリプレグ及び金属基板は、「前記無機フィラーは、表面改質を行うことにより、アクリル基及びビニール基の中の少なくとも1つを含む」又は「熱硬化性樹脂材料は、シランカップリング剤を含み、前記シランカップリング剤は、メタクリルシラン及びアクリルシランの中の少なく1つを含む」といった技術特徴により、金属基板の耐熱性及び誘電特性を向上させることができる。
10…基材層
20…金属層
Claims (12)
- 樹脂組成物及び改質された無機フィラーを含み、
前記樹脂組成物は、
10~30重量%のポリフェニレンエーテル樹脂と、
40~60重量%のシアネート樹脂と、
20~40重量%のビスマレイミド樹脂とを含み、
前記改質された無機フィラーは、表面改質を行うことにより、アクリル基、メタクリレート基及びビニール基の中の少なくとも1つを含み、
前記ビスマレイミド樹脂の構造は、下式(I)で表され、
前記改質された無機フィラーは、二酸化ケイ素、又は二酸化ケイ素とルチル型二酸化チタンである二酸化チタンとの組み合わせを含み、
前記ポリフェニレンエーテル樹脂は、少なくとも1つの改質基を有し、前記改質基は、ビニール基、スチレン基及びメタクリレート基からなる群から選択され、
前記シアネート樹脂は、平均個数が2つ以上であるシアネート基を含む、ことを特徴とする熱硬化性樹脂材料。 - 前記熱硬化性樹脂材料の総重量を100重量%として、前記改質された無機フィラーの添加量は、40~70重量%である、請求項1に記載の熱硬化性樹脂材料。
- R1及びR3はメチル基であり、R2及びR4はエチル基である、請求項1に記載の熱硬化性樹脂材料。
- 樹脂組成物、未改質の無機フィラー、及びシランカップリング剤を含み、
前記シランカップリング剤は、メタクリルシラン及びアクリルシランの中の少なく1つを含み、
前記樹脂組成物は、
10~30重量%のポリフェニレンエーテル樹脂と、
40~60重量%のシアネート樹脂と、
20~40重量%のビスマレイミド樹脂とを含み、
前記ビスマレイミド樹脂の構造は、下式(I)で表され、
前記未改質の無機フィラーは、二酸化ケイ素、又は二酸化ケイ素とルチル型二酸化チタンである二酸化チタンとの組み合わせを含み、
前記ポリフェニレンエーテル樹脂は、少なくとも1つの改質基を有し、前記改質基は、ビニール基、スチレン基及びメタクリレート基からなる群から選択され、
前記シアネート樹脂は、平均個数が2つ以上であるシアネート基を含む、ことを特徴とする熱硬化性樹脂材料。 - 前記熱硬化性樹脂材料の総重量を100重量%として、前記未改質の無機フィラーの添加量は、40~70重量%である、請求項4に記載の熱硬化性樹脂材料。
- R1及びR3はメチル基であり、R2及びR4はエチル基である、請求項4に記載の熱硬化性樹脂材料。
- 補強材料に請求項1~6のいずれか一項に記載の熱硬化性樹脂材料を含浸させて形成された、ことを特徴とするプリプレグ。
- 基材層と、前記基材層に設けられた金属層とを備え、
前記基材層は、請求項7に記載のプリプレグで製造された、ことを特徴とする金属基板。 - ガラス転移温度は、250~280℃である、請求項8に記載の金属基板。
- 比誘電率は、3.35~3.80である、請求項8に記載の金属基板。
- 誘電正接は、0.0044以下である、請求項8に記載の金属基板。
- 剥離強度は、5.0~6.0lb/inである、請求項8に記載の金属基板。
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- 2021-08-13 CN CN202110934360.9A patent/CN115537023A/zh active Pending
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