JP2017526766A - 織物−エラストマー結合のための方法 - Google Patents
織物−エラストマー結合のための方法 Download PDFInfo
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Abstract
Description
1)織物(大きさ〜20×19cm)を、接着テープによって印刷紙上に固定する。
2)ステップ1の試料を、コーター上に固定する。ワイヤロッドを選択する。ロッドを固定し、接着剤を保持するのに十分な空間を残す。
3)十分な接着剤を、テープで被覆された領域上に適用する。
4)モーターを始動し、接着剤を素早く適用する。
5)ワイヤロッドを取り外し、それを素早く洗浄する。試料を取り出し、それをフード内に〜5分間置き、その後、80〜120℃の加熱炉内に2分間移動させる。
6)試料を取り出し、それをフード内に置き、室温まで冷却させる。
7)コーティング重量(15〜20gsm)を試験し、試料を集める。
1)POEシートは、積層前に調製されるものとする。
2)ホットプレスを所望される温度(例えば、120℃)、圧力(例えば、500kg)に設定する。PETパッドを、プレスの下部プラテン上に置く。設定温度でプラテンを閉じる。
3)POEシート(15×15cm)を、織物の下塗りした側の上部に置く。積層後の容易な取り外しのために、積層の開始部分のうちの1つにおいて、シートと織物との間に紙テープを挿入する。
4)プレスを開け、POE//織物をパッド上に置く。POEシートをアルミニウム箔で被覆して、POEがプラテンに固着するのを防ぐ。プレスを素早く閉じる。
5)時間測定を開始し、設定時間(30〜60秒)にプレスを開ける。
6)試料を取り出し、箔側を実験台表面に対して下にして、それを室温で冷却させる。
7)箔を取り除き、試料を集める。
・織物:この研究において使用される織物は、典型的な市販の黒色PET織物である。
・POEシート:POEシートは、INFUSETMとVERSIFYTMとのブレンドである、Dow製品XUS57551(0.87g/cc、3.35MFR)から作製される。
・水性分散液1−1:分散液のベース樹脂は、無水マレイン酸(MAH)変性エチレン−酢酸ビニル(EVA)コポリマーであるFUSABOND C250であり、分散液の界面活性剤パッケージは、DMEA中和エチレン−アクリル酸(EAA)コポリマーである。分散液1−1の平均粒径は約550nmであり、固体含有量は50.0重量%であり、粘度は約380cpsである。
・水性分散液1−2:分散液のベース樹脂は、16.6〜20.6%のスチレン含有量を有するスチレンエチレンブテンスチレン(SEBS)ブロックコポリマーであるKRATON G1643であり、分散液の界面活性剤パッケージは、DMEA中和エチレン−アクリル酸(EAA)コポリマーである。分散液1−2の平均粒径は約960nmであり、固体含有量は50.0重量%であり、粘度は約295cpsである。
・水性分散液2:水性ロジン分散液が粘着付与剤分散液として使用され、分散液の界面活性剤パッケージは、DMEA中和エチレン−アクリル酸(EAA)コポリマーである。分散液2の平均粒径は約550nmであり、固体含有量は50.0重量%であり、粘度は約580cpsである。
注記:上述の水性分散液の全ては、Dowの機械分散技術を使用して生成される。
1)接着剤配合
上述のFUSABOND C250分散液(水性分散液1−1)またはSEBS(水性分散液1−2)と、ロジン分散液(水性分散液2)とを、設計した質量比で、撹拌下、コールドブレンドした。コーティング及び積層試験前に、平均粒径に関してブレンドの安定性を試験し、この試験の目的は相分離の問題が存在しないことを確実にすることであった。
上述のプロセスに従って、調製した接着剤で織物をコーティングし、その後、水の蒸発及びフィルム形成の目的のために、コーティングされた織物を120℃の炉内に3分間置いた。その後、115℃の圧縮成形機を使用して、4kNの圧縮力で、コーティングされた織物をPOEシートとともに積層した。
PET織物に積層されたPOEの試料を、3cm×15cmの矩形試料に切断し、180度剥離試験によって、300mm/分のクロスヘッド速度でInstronを使用して、剥離強度を測定した。平均負荷(kgf)を記録し、平均剥離強度(Kgf/3cm)を計算した。
ロジン分散液は、ROSIN GLYCEROL ESTER202の商品名で販売される水性ロジンエステルガムであった。
水性FUSABOND C250/ロジン分散液(固体質量比、50/50)ブレンド、固体含有量45.0重量%。
水性KRATON G1643/ロジン分散液(固体質量比、50/50)ブレンド、固体含有量45.0重量%。
45.0重量%の固体含有量を有する水性FUSABOND C250分散液。
45.0重量%の固体含有を有する水性KRATON G1643分散液。
45.0重量%の固体含有量を有する水性ロジン分散液。
表1は、異なる接着剤を使用することによって調製された積層試料の結合強度を示す。空試料(間にいかなる接着剤もなしで、POEシートを織物に直接積層した。)の結合強度も示す。
・表1から、実施例が、剥離強度要求を満たすことのできる2.0Kgf/3cmを超える剥離強度を示すが、比較例が、性能要求を満たさなかったことが観察される。
・SEBSまたはEVA−g−MAH分散液とロジン分散液とのブレンドが、コーティングプロセス中の織物構造への良好な浸透を有し、乾燥プロセスの後、ホットメルト接着剤としての役割を果たすと考えられる。ロジンは、ベース樹脂に対する効果的な粘着付与剤であり得、予想外の相乗効果が接着を強化する。
本発明の実施例(SEBSまたはEVA−g−MAH分散液とロジン分散液とのブレンド)は、環境的利点を含む、性能及び費用の良好なバランスを提供する。
Claims (8)
- 織物をポリオレフィンエラストマーに結合させるための方法であって、前記織物に、(a)10〜90重量%の熱可塑性ポリマーの水性分散液、及び(b)90〜10重量%のロジンの水性分散液を適用することを含み、パーセンテージが、熱可塑性ポリマー及びロジンの総乾燥重量に基づく、方法。
- 前記織物に、30〜70重量%の熱可塑性ポリマーの水性分散液、及び(b)70〜30重量%のロジンの水性分散液を適用することを含む、請求項1に記載の方法。
- 前記熱可塑性ポリマーが、C2−C8脂肪族アルファ−オレフィンのホモポリマーもしくはコポリマー、アルファ−オレフィンの官能化ホモポリマーもしくはコポリマー、C2−C8(好ましくはC2−C4)脂肪族アルファ−オレフィンとスチレンとのコポリマー、ポリウレタン、エポキシ、またはこれらの組み合わせである、請求項2に記載の方法。
- 前記ロジンが、ロジンエステル樹脂、非水素化脂肪族C5樹脂、水素化脂肪族C5樹脂、芳香族変性C5樹脂、テルペン樹脂、水素化C9樹脂、またはこれらの組み合わせである、請求項3に記載の方法。
- 前記ポリオレフィンエラストマーが、少なくとも50重量%のオレフィンモノマーの重合単位を含む、請求項4に記載の方法。
- 前記織物が、少なくとも50重量%のポリアミドまたはポリエステル繊維を含む、請求項5に記載の方法。
- 前記熱可塑性ポリマーが、スチレン−エチレン−ブテン−スチレンブロックコポリマーまたは無水マレイン酸−変性エチレン−酢酸ビニルコポリマーである、請求項6に記載の方法。
- 前記ロジンが、ロジンエステル樹脂、非水素化脂肪族C5樹脂、水素化脂肪族C5樹脂、芳香族変性C5樹脂、テルペン樹脂、水素化C9樹脂、またはこれらの組み合わせである、請求項7に記載の方法。
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EP3169739A4 (en) | 2018-02-21 |
KR20170032343A (ko) | 2017-03-22 |
ES2765523T3 (es) | 2020-06-09 |
CN106536659B (zh) | 2020-11-06 |
US20170217142A1 (en) | 2017-08-03 |
BR112017000241A2 (pt) | 2018-01-16 |
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