JP2020522003A - 樹脂組成物、その信頼性評価方法、及びそれを含む色変換フィルム - Google Patents
樹脂組成物、その信頼性評価方法、及びそれを含む色変換フィルム Download PDFInfo
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- JP2020522003A JP2020522003A JP2019563796A JP2019563796A JP2020522003A JP 2020522003 A JP2020522003 A JP 2020522003A JP 2019563796 A JP2019563796 A JP 2019563796A JP 2019563796 A JP2019563796 A JP 2019563796A JP 2020522003 A JP2020522003 A JP 2020522003A
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Abstract
Description
本出願は、2017年5月19日に出願された大韓民国特許出願第10−2017−0062427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、その信頼性評価方法、及びそれを含む色変換フィルムに関する。
CE≦30wt%
CE≦30wt%
(1)樹脂組成物の製造
密閉可能な500mL反応容器に、ジメチルホルムアミド(DMF、Sigma Aldrich)74.5重量部、BODIPY−FL(Thermo Fisher)0.5重量部及びポリメチルメタアクリレート及びポリメタアクリル酸を5:5の重量割合で混合した混合物を25重量部で投入し、常温で約1時間の間撹拌して均一な樹脂組成物を製造した。
上記で製造された樹脂組成物を離型PETの離型面に塗布し、130℃のオーブンで3分間乾燥(5気圧)して、厚さ50μmの色変換層を含む色変換フィルムを製造した。製造されたフィルムに紫外線を窒素雰囲気下で2J/cm2照射(A領域基準100mW/cm2)したサンプルに対して物性を測定する。
実施例1で製造された樹脂組成物の濃度(固形分の含量)によって測定した前記樹脂組成物の相対粘度を測定した。前記測定された濃度による相対粘度をグラフで示したとき、前記グラフ勾配の変曲点での固形分の含量を測定した。粘度は、粘弾性測定器(Dynamic Hybrid Rheometer、DHR、TA Instruments)を用いて25℃で10S −1のせん断速度条件で測定し、0.8cP粘度を有する対照サンプルと前記測定された粘度を比較して相対粘度を計算した。その結果を図1に示した。図1を参照すると、Solvent Aは、実施例1において溶媒で用いられたジメチルホルムアミド(DMF)を示す。
(1)樹脂組成物の製造
密閉可能な500mL反応容器に、ジメチルホルムアミド(DMF、Sigma Aldrich)74.5重量部、BODIPY−FL(Thermo Fisher)0.5重量部及びポリメチルメタアクリレート及びポリメタアクリル酸を5:5の重量割合で混合した混合物を25重量部で投入し、常温で約1時間の間撹拌して均一な樹脂組成物を製造した。
上記で製造された樹脂組成物を離型PETの離型面に塗布し、130℃のオーブンで3分間乾燥(5気圧)して、厚さ50μmの色変換層を含む色変換フィルムを製造した。製造されたフィルムに紫外線を窒素雰囲気下で2J/cm2照射(A領域基準100mW/cm2)したサンプルに対して物性を測定する。
実施例2で製造された樹脂組成物の溶液を、図2に示したように、伸長粘度計であるCaBERを用いて緩和時間を測定した。25℃の温度で前記樹脂組成物を同軸であると共に垂直に配置された一対の円形プレートの間に封入した。上側のプレートを50msの時間で40mmの垂直に引き上げてそのまま維持した状態で、前記樹脂組成物が形成したフィラメントの直径をレーザーマイクロメーター(Laser micrometer)を用いてリアルタイムで測定した。前記結果を時間経過による直径変化グラフで示したとき、破断時間での勾配を測定し、上述した一般式2によって緩和時間(λ:Relaxation time)を測定した。前記緩和時間は、MATLABプログラムを用いて計算した。
ジメチルホルムアミド(DMF)の代わりにプロピレングリコールメチルエチルアセテート(PGME)を用いたこと以外は、実施例1と同一の方法で樹脂組成物及び色変換フィルムを製造した。
ジメチルホルムアミド(DMF)の代わりにテトロハイドロフラン(THF)を用いたこと以外は、実施例1と同一の方法で樹脂組成物及び色変換フィルムを製造した。
ジメチルホルムアミド(DMF)の代わりにプロピレングリコールメチルエチルアセテート(PGME)を用いたこと以外は、実施例1と同一の方法で樹脂組成物及び色変換フィルムを製造した。
ジメチルホルムアミド(DMF)の代わりにテトラヒドロフラン(THF)を用いたこと以外は、実施例1と同一の方法で樹脂組成物及び色変換フィルムを製造した。
Claims (10)
- 高分子樹脂及び有機蛍光体を含む樹脂組成物の信頼性評価方法であって、
前記樹脂組成物は、下記一般式1を満足するか又は一般式2による緩和時間(λ:Relaxation time)が20ms以上である、信頼性評価方法。
[一般式1]
CE≦30wt%
[一般式2]
上記一般式2において、D1は、伸長粘度計であるCaBERを用い、25℃の温度で前記樹脂組成物を同軸であると共に垂直に配置された一対の円形プレートの間に封入し、上側のプレートを50msの時間の間40mmの垂直に引き上げてそのまま維持した状態で、前記樹脂組成物が形成したフィラメントの初期直径を示し、D(t)は、破断時間(Breakup Time、t)での前記フィラメントの直径を示し、kは、比例定数を示す。 - 相対粘度は、0.8cPの粘度を有する溶媒と比較して測定し、前記溶媒の相対粘度は、1である、請求項1に記載の信頼性評価方法。
- 高分子樹脂は、熱硬化性樹脂又は熱可塑性樹脂である、請求項1または2に記載の信頼性評価方法。
- 有機蛍光体は、ポリアロマティックハイドロカーボン又はヘテロ環化合物誘導体を含む、請求項1から3のいずれか一項に記載の信頼性評価方法。
- 有機蛍光体は、高分子樹脂100重量部に対して、0.1〜10重量部で含まれる、請求項1から4のいずれか一項に記載の信頼性評価方法。
- 樹脂組成物は、溶媒をさらに含む、請求項1から5のいずれか一項に記載の信頼性評価方法。
- 前記溶媒は、例えば、トルエン、キシレン、アセトン、クロロホルム、各種アルコール系溶媒、MEK(メチルエチルケトン)、MIBK(メチルイソブチルケトン)、EA(酢酸エチル)、酢酸ブチル、DMF(ジメチルホルムアミド)、DMAc(ジメチルアセトアミド)、DMSO(ジメチルスルホキシド)、NMP(N−メチル−ピロリドン)、シクロヘキサノン(cyclohexanone)、PGMEA(プロピレングリコールメチルエチルアセテート)及びジオキサン(dioxane)からなる群より選択される1種又は2種以上を含む、請求項6に記載の信頼性評価方法。
- 高分子樹脂及び有機蛍光体を含み、下記一般式1を満足するか又は一般式2による緩和時間(λ:Relaxation time)が20ms以上である、樹脂組成物。
[一般式1]
CE≦30wt%
[一般式2]
上記一般式2において、D1は、伸長粘度計であるCaBERを用い、25℃の温度で前記樹脂組成物を同軸であると共に垂直に配置された一対の円形プレートの間に封入し、上側のプレートを50msの時間の間40mmの垂直に引き上げてそのまま維持した状態で、前記樹脂組成物が形成したフィラメントの初期直径を示し、D(t)は、破断時間(Breakup Time、t)での前記フィラメントの直径を示し、kは、比例定数を示す。 - 請求項8に記載の樹脂組成物を含む色変換層を有する、色変換フィルム。
- 色変換層の少なくとも一面に保護フィルム又はバリアフィルムをさらに含む、請求項9に記載の色変換フィルム。
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KR101590299B1 (ko) * | 2015-01-27 | 2016-02-01 | 주식회사 엘지화학 | 금속 착체 및 이를 포함하는 색변환 필름 |
TWI617659B (zh) | 2015-01-31 | 2018-03-11 | Lg 化學股份有限公司 | 色彩轉換膜、其製造方法、背光單元和顯示設備 |
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