JP2022544819A - 樹脂組成物 - Google Patents
樹脂組成物 Download PDFInfo
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- JP2022544819A JP2022544819A JP2022510837A JP2022510837A JP2022544819A JP 2022544819 A JP2022544819 A JP 2022544819A JP 2022510837 A JP2022510837 A JP 2022510837A JP 2022510837 A JP2022510837 A JP 2022510837A JP 2022544819 A JP2022544819 A JP 2022544819A
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Abstract
Description
25≦D50A/D50C≦300
V<t2/td×Q
真円度=4πA/P2
樹脂層(樹脂組成物の硬化物の層)の熱伝導率は、ISO 22007-2規格に基づいてホットディスク(Hot-Disk)方式により測定した。具体的には、実施例及び比較例によって製造された主剤組成物及び硬化剤組成物の混合物である樹脂組成物を約7mm程度の厚さのモールドに位置させて、Hot Disk装置を用いてthrough plane方向に熱伝導率を測定した。前記規格(ISO 22007-2)に規定されたように、Hot Disk装置は、ニッケル線が二重スパイラル構造になっているセンサーが加熱されつつ温度の変化(電気抵抗の変化)を測定して熱伝導率を確認できる装置であり、このような規格によって熱伝導率を測定した。
樹脂組成物の負荷値(kgf)は、2つのカートリッジ2、2a、2b及び一つのスタティックミキサー5を図2のように連結させた装置1を用いて測定した。
本明細書でいうフィラーの平均粒径は、フィラーのD50粒径であり、これはISO-13320規格に準拠してMarvern社のMASTERSIZER3000装置により測定した粒径である。測定時に溶媒としては、エタノール(Ethanol)を用いた。溶媒内に分散されたフィラーによって入射されたレーザーが散乱されることになり、前記散乱されるレーザーの強度と方向性の値は、フィラーのサイズによって異なる。これを、Mie理論を用いて分析することにより、D50粒径を求めることができる。前記分析を通じて分散されたフィラーと同じ体積を持つ球の直径への換算により分布図を求め、それにより分布図の中間値であるD50値を求めて粒径を評価しうる。
3次元粒子であるフィラーの球形度(sphericity)は、粒子の表面積(S)とその粒子と同じ体積を持つ球の表面積(S’)の割合(S'/S)で定義され、実際の粒子に対しては、通常、真円度(circularity)の平均値となる。
真円度=4πA/P2
樹脂組成物は、下記のような材料を用いて2液型で製造した。
フィラー成分として、平均粒径が約120μmの第1のアルミナフィラー(球状、球形度0.95以上)、平均粒径が約20μmの第2のアルミナフィラー(球状、球形度0.95以上)及び平均粒径が約1μmの第3のアルミナフィラー(非球状、球形度0.9未満)を4:3:3(第1のアルミナフィラー:第2のアルミナフィラー:第3のアルミナフィラー)の重量割合で混合したものを用いたことを除いては、実施例1と同様に主剤及び硬化剤組成物を製造した。
フィラー成分として、平均粒径が約75μmの第1のアルミナフィラー(球状、球形度0.95以上)、平均粒径が約20μmの第2のアルミナフィラー(球状、球形度0.95以上)及び平均粒径が約0.5μmの第3のアルミナフィラー(非球状、球形度0.9未満)を4:3:3(第1のアルミナフィラー:第2のアルミナフィラー:第3のアルミナフィラー)の重量割合で混合したものを用いたことを除いては、実施例1と同様に主剤及び硬化剤組成物を製造した。
フィラー成分として、平均粒径が約65μmの第1のアルミナフィラー(球状、球形度0.95以上)、平均粒径が約20μmの第2のアルミナフィラー(球状、球形度0.95以上)及び平均粒径が約1μmの第3のアルミナフィラー(非球状、球形度0.9未満)を4:3:3(第1のアルミナフィラー:第2のアルミナフィラー:第3のアルミナフィラー)の重量割合で混合したものを用いたことを除いては、実施例1と同様に主剤及び硬化剤組成物を製造した。
フィラー成分として、平均粒径が約120μmの第1のアルミナフィラー(球形、球形度0.95以上)、平均粒径が約20μmの第2のアルミナフィラー(球状、球形度0.95以上)及び平均粒径が約0.5μmの第3のアルミナフィラー(非球状、球形度0.9未満)を4:3:3(第1のアルミナフィラー:第2のアルミナフィラー:第3のアルミナフィラー)の重量割合で混合したものを用いたことを除いては、実施例1と同様に主剤及び硬化剤組成物を製造した。
フィラー成分として、平均粒径が約70μmの第1のアルミナフィラー(球状、球形度0.95以上)、平均粒径が約20μmの第2のアルミナフィラー(球状、球形度0.95以上)及び平均粒径が約2μmの第3のアルミナフィラー(非球状、球形度0.9未満)を4:3:3(第1のアルミナフィラー:第2のアルミナフィラー:第3のアルミナフィラー)の重量割合で混合したものを用いたことを除いては、実施例1と同様に主剤及び硬化剤組成物を製造した。
フィラー成分として、平均粒径が約70μmの第1のアルミナフィラー(球状、球形度0.95以上)、平均粒径が約20μmの第2のアルミナフィラー(球状、球形度0.95以上)及び平均粒径が約2μmの第3のアルミナフィラー(非球状、球形度0.9未満)を4:3:3(第1のアルミナフィラー:第2のアルミナフィラー:第3のアルミナフィラー)の重量割合で混合したものを用いたことを除いては、実施例1と同様に主剤及び硬化剤組成物を製造した。
フィラー成分として、平均粒径が約40μmの第1のアルミナフィラー、平均粒径が約20μmの第2のアルミナフィラー及び平均粒径が約2μmの第3のアルミナフィラーを4:3:3(第1のアルミナフィラー:第2のアルミナフィラー:第3のアルミナフィラー)の重量割合で混合したものを用いたことを除いては、実施例1と同様に主剤及び硬化剤組成物を製造した。
比較例2のフィラー成分を使用するが、前記フィラー成分が主剤及び硬化剤組成物が混合された樹脂組成物100重量部のうち約88.6重量部が存在するように前記フィラー成分の量を調節し、このようなフィラー成分を同じ重量に2等分して主剤及び硬化剤組成物にそれぞれ配合したことを除いては、実施例1と同様に主剤及び硬化剤組成物を製造した。
フィラー成分として、平均粒径が約70μmの第1のアルミナフィラー(球状、球形度0.9以上)、平均粒径が約20μmの第2のアルミナフィラー(球状、球形度0.9以上)及び平均粒径が約2μmの第3のアルミナフィラー(球状、球形度0.9以上)を4:3:3(第1のアルミナフィラー:第2のアルミナフィラー:第3のアルミナフィラー)の重量割合で混合したものを用いた。前記フィラー成分において最小平均粒径(D50C)に対して最大平均粒径(D50A)の割合(D50A/D50C)は、35である。前記フィラー成分は、アルファ相を前記フィラー成分の全重量を100重量%とするとき、約35重量%含む。
2、2a、2b:カートリッジ
3、3a、3b:加圧手段
4、4a、4b:第1の吐出部
5:ミキサー
6、6a、6b:収容部
7:第2の吐出部
10:モジュールケース
10a:下部板
10b:側壁
10c:上部板
20、40:バッテリーセル
30:注入装置
20:注入口
Claims (14)
- 樹脂成分及びフィラー成分を含み、
前記フィラー成分は、平均粒径が互いに異なる2種以上のフィラーを含み、
負荷値が35kgf未満で、硬化後の熱伝導率が3.0W/mK以上である、樹脂組成物。 - 下記一般式1を満たす、請求項1に記載の樹脂組成物。
[一般式1]
25≦D50A/D50C≦300
一般式1においてD50Aは、フィラー成分内のフィラーの最大平均粒径であり、D50Cは、フィラー成分内のフィラーの最小平均粒径である。 - フィラー成分の最大平均粒径(D50A)が、60μm~200μmの範囲内である、請求項2に記載の樹脂組成物。
- フィラー成分の最小平均粒径(D50C)が、0.2μm~5μmの範囲内である、請求項2に記載の樹脂組成物。
- フィラー成分は、互いに平均粒径が異なる3種のフィラーを含む、請求項1に記載の樹脂組成物。
- フィラー成分は、平均粒径が60μm~120μmの範囲内である第1のフィラー、平均粒径が5μm超過40μm以下である第2のフィラー、及び平均粒径が0.2μm~5μmの範囲内である第3のフィラーを含む、請求項1に記載の樹脂組成物。
- フィラー成分を91重量%以下で含む、請求項1に記載の樹脂組成物。
- フィラー成分は、球状フィラーを30重量%以上含む、請求項1に記載の樹脂組成物。
- フィラー成分は、アルファ相(α-Phase)フィラーを90重量%以下で含む、請求項1に記載の樹脂組成物。
- フィラー成分は、フィラーとして、フューム・ド・シリカ、クレー、炭酸カルシウム(CaCO3)、酸化アルミニウム(Al2O3)、窒化アルミニウム(AlN)、窒化ホウ素(BN)、窒化ケイ素(Si3N4)、炭化ケイ素(SiC)、酸化ベリリウム(BeO)、酸化亜鉛(ZnO)、水酸化アルミニウム(Al(OH)3)、ベーマイト(Boehmite)、酸化マグネシウム(MgO)、水酸化マグネシウム(Mg(OH)2)または炭素フィラーを含む、請求項1に記載の樹脂組成物。
- 樹脂成分は、ポリオール、イソシアネート化合物、ウレタン樹脂、アクリル樹脂、エポキシ樹脂、オレフィン樹脂またはシリコーン樹脂である、請求項1に記載の樹脂組成物。
- 上部板、下部板及び側壁を有し、前記上部板、下部板及び側壁によって内部空間が形成されているモジュールケースと、
前記モジュールケースの内部空間に存在する複数のバッテリーセルと、
請求項1から11のいずれか一項 に記載の樹脂組成物の硬化物であり、前記複数のバッテリーセル及び下部板または側壁のうち少なくとも一つと接触する樹脂層と、を含む、バッテリーモジュール。 - 互いに電気的に連結されている、請求項12に記載のバッテリーモジュールを2つ以上含む、バッテリーパック。
- 請求項12に記載のバッテリーモジュール又は請求項13に記載のバッテリーパックを含む、自動車。
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