JP7118496B2 - 複合材 - Google Patents
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Description
本出願は、2018年6月29日に出願された大韓民国特許出願第10-2018-0075961号に基づく優先権の利益を主張し、該当大韓民国特許出願の文献に開示されたすべての内容は本明細書の一部として組み込まれる。
本出願は、複合材に関する。
実施例又は比較例の材料の比透磁率は、Keysight社の16454A装備で測定し、1kHz~10MHzの領域をスキャンした。
適用された金属フォームの気孔分布は、電子式光学顕微鏡(SEM、JEOL、JSM-7610F)を用いて500倍の倍率で撮影したSEMイメージをImage analyzerで確認して気孔分布を計算した。
金属フォームとしては、鉄とニッケルの合金(Fe/Ni=20/80)で製造された気孔度が約75%レベルであり、厚さが約80μmである金属フォームを用いた。
実施例1で製造された金属フォームにシロキサン系列の樹脂(製造社:Dow Corning、製品名:Sylgard184)を塗布し、フィルムアプリケーターを用いて最終複合材の厚さが約100μm程度になるように過量の組成物を除去した。その後、前記材料を約120℃のオーブンで約1時間程度維持して硬化させて、フィルム形態の複合材を製造した。前記複合材の比透磁率は、200以上(100~300kHz)であった。
実施例1で得た金属フォームにアクリレート系列の樹脂(製造社:Aldrich、商品名:PMMA)を塗布し、フィルムアプリケーターを用いて最終複合材の厚さが約100μm程度になるように過量の組成物を除去した。その後、前記材料を約120℃のオーブンで約1時間程度維持して硬化させて、フィルム形態の複合材を製造した。
実施例1で得た金属フォームにポリプロピレン樹脂(製造社:Aldrich、商品名:Polypropylene)を塗布し、フィルムアプリケーターを用いて最終複合材の厚さが約100μm程度になるように過量の組成物を除去した。その後、前記材料を硬化させてフィルム形態の複合材を製造した。前記複合材の比透磁率は、190以上(100~300kHz)であった。
金属フォームとしては、鉄、ニッケル及びモリブデンの合金(Fe/Ni/Mo=15/80/5)粉末を用い、実施例1のような方式で製造した気孔度が約72%レベルであり、厚さが約80μmである金属フォームを用いた。前記金属フォームにエポキシ樹脂(製造社:国都化学、製品名:KSR177)を塗布し、フィルムアプリケーターを用いて最終複合材の厚さが約110μm程度になるように過量の組成物を除去した。その後、前記エポキシ樹脂が適用された金属フォームを実施例1と同一の条件で処理して、フィルム形態の複合材を製造した。前記複合材の比透磁率は、200以上(100~300kHz)であった。
金属フォームとしては、鉄、アルミニウム及びシリコンの合金(Fe/Al/Si=85/6/9)粉末を用い、実施例1のような方式で製造された気孔度が約70%レベルであり、厚さが約80μmである金属フォームを用いた。前記金属フォームにエポキシ樹脂(製造社:国都化学、製品名:KSR177)を塗布し、フィルムアプリケーターを用いて最終複合材の厚さが約100μm程度になるように過量の組成物を除去した。その後、前記エポキシ樹脂が適用された金属フォームを実施例1と同一の条件で処理して、フィルム形態の複合材を製造した。前記複合材の比透磁率は、150以上(100~300kHz)であった。図4は、実施例6の複合材の比透磁率グラフである。
金属フォームとしては、鉄、ケイ素及びホウ素の合金(Fe/Si/B=75/15/10)粉末を用い、実施例1のような方式で製造した気孔度が約67%レベルであり、厚さが約80μmである金属フォームを用いた。前記金属フォームにエポキシ樹脂(製造社:国都化学、製品名:KSR177)を塗布し、フィルムアプリケーターを用いて最終複合材の厚さが約120μm程度になるように過量の組成物を除去した。その後、前記エポキシ樹脂が適用された金属フォームを実施例1と同一の条件で処理して、フィルム形態の複合材を製造した。前記複合材の比透磁率は、120以上(100~300kHz)であった。
金属フォームとしては、鉄、ケイ素、ホウ素、ニオビウム及び銅の合金(Fe/Si/B/Nb/Cu=74/13/9/3/1)粉末を用い、実施例1のような方式で製造した気孔度が約61%レベルであり、厚さが約80μmである金属フォームを用いた。前記金属フォームにエポキシ樹脂(製造社:国都化学、製品名:KSR177)を塗布し、フィルムアプリケーターを用いて最終複合材の厚さが約100μm程度になるように過量の組成物を除去した。その後、前記エポキシ樹脂が適用された金属フォームを実施例1と同一の条件で処理して、フィルム形態の複合材を製造した。前記複合材の比透磁率は、170以上(100~300kHz)であった。
金属フォームとしては、銅粉末を用いて実施例1のような方式で製造した気孔度が約65%レベルであり、厚さが約80μmである金属フォームを用いた。前記金属フォームに実施例2で適用したシロキサン系列の樹脂を塗布し、フィルムアプリケーターを用いて最終複合材の厚さが約100μm程度になるように過量の組成物を除去した。その後、前記樹脂が適用された金属フォームを実施例2と同一の条件で処理して、フィルム形態の複合材を製造した。前記複合材の比透磁率は、50以下(100~300kHz)であった。
軟磁性金属フィラーとして、鉄、アルミニウム及びケイ素の合金(Fe/Al/Si=85/6/9)フィラーをポリプロピレン樹脂と混合した後、フィルムアプリケーターを用いて厚さが約120μm程度であるフィルム形態に成形し、硬化させることでフィルム形態の複合材を製造した。
Claims (14)
- 軟磁性金属成分の金属フォーム及び前記金属フォームの表面又は内部に存在する高分子成分を含み、
金属フォームの気孔度が50%以上である、複合材。 - フィルム形態である、請求項1に記載の複合材。
- 10μm~1cm範囲内の厚さ及び100kHz~300kHzで100以上の比透磁率を示す、請求項1又は2に記載の複合材。
- 金属フォームの気孔度が60%以上である、請求項1~3のいずれか一項に記載の複合材。
- 金属フォームの全体気孔のうち85%以上の気孔の気孔サイズが10μm以下である、請求項1~4のいずれか一項に記載の複合材。
- 金属フォームの全体気孔のうち65%以上の気孔の気孔サイズが5μm以下である、請求項1~5のいずれか一項に記載の複合材。
- 軟磁性金属成分がFe/Ni合金、Fe/Ni/Mo合金、Fe/Al/Si合金、Fe/Si/B合金、Fe/Si/Nb合金、Fe/Si/Cu合金又はFe/Si/B/Nb/Cu合金である、請求項1~6のいずれか一項に記載の複合材。
- 金属フォームの厚さ(MT)及び全体厚さ(T)の割合(T/MT)が1.01以上である、請求項1~7のいずれか一項に記載の複合材。
- 金属フォームの厚さ(MT)及び全体厚さ(T)の割合(T/MT)が2以下である、請求項1~8のいずれか一項に記載の複合材。
- 金属フォームは、厚さが10μm以上である、請求項1~9のいずれか一項に記載の複合材。
- 高分子成分は、金属フォームの表面で表面層を形成している、請求項1~10のいずれか一項に記載の複合材。
- 高分子成分は、アクリル樹脂、シリコン樹脂、エポキシ樹脂、オレフィン樹脂、ポリエステル樹脂、ポリアミド樹脂、ウレタン樹脂、アミノ樹脂及びフェノール樹脂からなる群より選択された一つ以上を含む、請求項1~11のいずれか一項に記載の複合材。
- 高分子成分の体積(PV)と金属フォームの体積(MV)の割合(MV/PV)は、10以下である、請求項1~12のいずれか一項に記載の複合材。
- 軟磁性金属成分の金属フォームの表面又は内部に硬化性高分子組成物が存在する状態で前記硬化性高分子組成物を硬化させるステップを含み、
前記金属フォームは、金属成分、分散剤、及びバインダーを含むスラリーを用いて形成されることができ、
前記スラリー中の前記金属成分の割合は、重量の基準で、30%~70%でよく、
前記バインダーは、アルキルセルロース、ポリアルキレンカーボネート、又はポリビニルアルコール系バインダーでよく、
前記分散剤はアルコールでよく、
前記バインダーは、金属成分100重量部に対して約1~30重量部の割合で前記スラリー中に含まれてよく、
前記分散剤は、前記バインダー100重量部に対して約200~700重量部の割合で前記スラリー中に含まれてよい、請求項1~13のいずれか一項に記載の複合材の製造方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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KR20180075961 | 2018-06-29 | ||
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JP2011036007A (ja) | 2009-07-31 | 2011-02-17 | Hitachi Ltd | 圧粉磁心成形体、およびその成形体を備えた回転電機 |
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KR200338459Y1 (ko) * | 2003-10-08 | 2004-01-16 | 한규호 | 안테나용 전자파차폐제 |
KR100721462B1 (ko) * | 2004-05-31 | 2007-05-23 | 주식회사 엘지화학 | 점착 방열시트 |
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JP2009272500A (ja) | 2008-05-08 | 2009-11-19 | Daido Steel Co Ltd | 磁性金属粉焼結シートの製造方法 |
JP2011036007A (ja) | 2009-07-31 | 2011-02-17 | Hitachi Ltd | 圧粉磁心成形体、およびその成形体を備えた回転電機 |
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