JP2022527885A - 樹脂組成物 - Google Patents
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Abstract
Description
本出願は、2019年3月27日に出願された大韓民国特許出願第10-2019-0035031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、樹脂組成物、その製造方法及び用途に関する。
実施例で適用された粒子(FR-119L)の粒度分布は、レーザー分析方式で評価した。測定装備としては、粒度分布測定器(PSA)(Model Mastersizer 300、Malvem Instruments LTD)を適用して標準方式で評価した。前記方式はレーザーを用い、入射されたレーザーは粒子により散乱、透過及び吸収されるが、このうち散乱される光中には、回折(diffraction)、屈折(refraction)及び反射(reflection)される光が存在する。場合によっては、吸収された光の一部が他の波長の光に放出される場合もある。このような現象は、同時に複合的に発生するが、前記測定装備を用いた標準方式では、前記光散乱の程度を検出し、これを通じて粒度分布を測定する。測定方式には、粒子を溶媒に分散させて測定する湿式方式と粉末状態で測定する乾式方式があるが、本出願では湿式方式を適用した。溶媒としては、エタノールを適用し、分散濃度は、大略1~5重量%の範囲内にした。
実施例で適用された粒子(FR-119L)と直径が1mmであるジルコニアビードをエタノールに分散させた後、200RPMの速度でシェイキング(shaking)してミリングした。ミリングは、20時間の間行い、混合時には、ジルコニアビーズの全体体積が難燃剤の全体体積に比べて1/3程度のレベルになるように混合した。前記ミリング後に、エタノールで洗浄(washing)してジルコニアビードを分離した後、上述した方式と同一の方式で前記粒子の粒度分布を測定した。
樹脂組成物の粘度は、HBタイプの粘度計を用いて測定することができる。上記でHBタイプの粘度計でせん断速度(Shear rate)を0.01/sから10.0/sまで変化させながら測定する。特に他に規定しない限り、粘度数値は、2.5/sのせん断速度での数値であり、揺変性指数は、0.1/s地点と1.0/s地点での粘度の割合である。
樹脂組成物の製造時に適用した成分の具体的な内容は、下記に整理し、これを用いて樹脂組成物を製造する方式は、次の通りであり、下記製造方法で混合は、Planetary mixerで行った。また、下記製造方式で硬化性樹脂は、合計3回に分けて分割投入されるが、最終的に樹脂組成物に存在する硬化性樹脂の量を100重量部としたときに、1次、2次及び3次硬化性樹脂の投入時に投入される重量割合は、大略50~55:25:25~20(1次:2次:3次)である。また、下記でアルミナフィラーは、全体硬化性樹脂成分100重量部に対して大略900重量部で混合し、このとき、平均粒径(D50)が大略2μm、20μm及び40μmであるアルミナフィラーの重量割合は、大略3:3:4程度(2μm:20μm:40μm)になるようにした。
Claims (15)
- 硬化性樹脂又は前記樹脂に対する硬化剤;及び粒子を含み、
前記粒子は、粒径が1mmであるジルコニウムビーズで20時間ミリング後にD50粒径の変化率が-95%~-80%の範囲内である、樹脂組成物。 - 粒子は、粒径が1mmであるジルコニウムビーズで20時間ミリングした後にD10粒径の変化率が-85%~-70%の範囲内である、請求項1に記載の樹脂組成物。
- 粒子は、粒径が1mmであるジルコニウムビーズで20時間ミリングした後にD90粒径の変化率が-95%~-80%の範囲内である、請求項1に記載の樹脂組成物。
- 硬化性樹脂は、ポリオール化合物であり、硬化剤は、イソシアネート化合物である、請求項1から3のいずれか一項に記載の樹脂組成物。
- 粒子は、D50粒径が1~10μmの範囲内である、請求項1に記載の樹脂組成物。
- 粒子は、D50粒径とD90粒径の割合(D90/D50)が1.5~5の範囲内である、請求項5に記載の樹脂組成物。
- 粒子は、D50粒径とD10粒径の割合(D50/D10)が3.5~6の範囲内である、請求項5に記載の樹脂組成物。
- 熱伝導性フィラーをさらに含む、請求項1から7のいずれか一項に記載の樹脂組成物。
- 揺変性指数(thixotropic index)値は、1~4である、請求項1から8のいずれか一項に記載の樹脂組成物。
- 硬化性樹脂;前記樹脂に対する硬化剤;及び粒子を含み、
前記粒子は、粒径が1mmであるジルコニウムビーズで20時間ミリングした後にD50粒径の変化率が-95%~-80%の範囲内である、樹脂組成物。 - 硬化性樹脂又は前記樹脂に対する硬化剤;及び粒子を混合するステップを含み、
前記粒子は、粒径が1mmであるジルコニウムビーズで20時間ミリングした後にD50粒径の変化率が-95%~-80%の範囲内である、樹脂組成物の製造方法。 - 前記硬化性樹脂又は前記樹脂に対する硬化剤;前記粒子及び熱伝導性フィラーの混合物を形成する第1ステップ;及び
前記第1ステップの混合物を前記第1ステップの熱伝導性フィラーより大きい平均粒径を有する熱伝導性フィラーと混合する第2ステップを含む、請求項11に記載の樹脂組成物の製造方法。 - 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り内部空間が形成されているモジュールケース;
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セル;及び
請求項1から10のいずれか一項に記載の樹脂組成物を含み、前記複数のバッテリセル及び下部板又は側壁と接する樹脂層を含む、バッテリモジュール。 - 互いに電気的に連結されている請求項13に記載のバッテリモジュールを2個以上含む、バッテリパック。
- 請求項14に記載のバッテリパックを含む、自動車。
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