JP2014513734A - 帯電防止被覆としてのイオン性フルオロポリマーの使用 - Google Patents
帯電防止被覆としてのイオン性フルオロポリマーの使用 Download PDFInfo
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Abstract
Description
a)2つの基材、例えば2つの微小孔性膜、若しくは1つの微小孔性膜及び1つの布地層の間の中間層、又は
b)基材上に多重被覆した層の一部分、例えば2つの他の被覆の間の1つの層、又は最も外側の表面における上塗りを形成してもよい。
電荷減衰時間(CDT)は、DIN EN 1149―3に従って測定した。
表面抵抗は、ASTM D257に従い、正方形の配置を有する2本の平行電極の間で測定した。非導電性ポリマー基材の表面抵抗は、湿度の変化に応答して急速に変化する可能性があるため、環境要因の制御は重要である。試験結果の正確な報告は、表面抵抗測定の前及び間の、試料の温度及び湿度を含む。
ガーレー数[s]は、ASTM D726―58に従い、ガーレーデンソメーターを使用して決定した。1.215kN/m2の水の圧力損失において、100立方センチメートルの空気が6.54cm2の試験サンプルを通過する秒数における時間であるガーレー数について結果を報告する。
フラジール数[cfm]は、ASTM D737に従い、透気性試験器III FX 3300(TEXTEST AG)を使用して決定した。
MFPは、PMI(PorousMaterials社)製キャピラリーフローポロメーター CFP 1500 AEXLSを使用して測定した。膜を、Silwick(表面張力20mN/m)で完全に濡らした。完全に濡らしたサンプルをサンプルチャンバー内に置いた。チャンバーを密閉し、サンプルの後方のチャンバー内に、最大の直径の孔内にある流体の毛細管現象を克服するのに十分な圧力の値まで、気体を流した。これがバブルポイント圧力である。圧力は小さな増加量において更に増加し、結果として、孔に流体がなくなるまで測定される流れとなる。適用した圧力の範囲は、0〜8.5bar(850kPa)であった。平均流量孔径以外に、最大及び最小孔径を検出した。
本明細書において報告する基材の膜厚の測定について、ハイデンハイン厚み試験機を使用して測定を行った。顕微鏡画像は、サンプルを金でスパッタし、LEO 1450 VPで撮影した。断面を調製し、厚みを測定した。
GORE(登録商標)高屈曲性ケーブルをエナジーチェーンに固定し、室温における回転屈曲試験において、1,000,000サイクル屈曲させた。
トラバース経路:1.30m
速度:30サイクル/min
曲げ半径:60mm
表面抵抗を試験の前後で測定した。
IEC(国際電気標準会議)―68―2―30湿熱に従い、湿度試験を、温度範囲25℃〜55℃、及び相対湿度92〜98%において、合計6サイクル行った。乾燥熱試験を、IEC 68―2―2に従い、110℃で7日間行った。
以下の例は、帯電防止被覆を形成するための、水素型のイオン性フルオロポリマーの利点を説明する。
水/アルコール中の、より短い側鎖を有する新規な市販のイオノマー分散が良好に機能し、膜上の帯電防止表面の特性を達成した。
他のePTFE膜(単位面積当たりの質量54.8g/m2、フラジール0.35、表面抵抗1012Ω/□超)を、30秒間、例2の溶液で被覆した。被覆量は、165℃で5分間乾燥させた後、2.1g/m2であった。1.80x107Ω/□の被覆した膜の表面抵抗が、相対湿度65%、及び21℃において測定された。
50gのAquivionTM水性イオノマー分散D83―20B(Solvay Solexis)を、16℃において、絶えず撹拌しながら、450gのエタノールと混合した(測定された固体2.0質量%)。
他のePTFE膜(単位面積当たりの質量54.8g/m2、フラジール0.35、表面抵抗1012Ω/□超)を、30秒間、例4の溶液で被覆した。被覆量は、165℃で5分間乾燥させた後、5.82g/m2であった。2.633x107Ω/□の表面抵抗が、相対湿度65%、及び21℃において測定された。
非透気性Flemion F950(FSS―1、AGC)フィルム(厚み28μm)の、21℃、及び相対湿度55%において測定した表面抵抗は、3.60x105Ω/□であった。
以下の例は、帯電防止被覆を形成するための、部分的に水素型(総数の50%)のイオン性フルオロポリマーの性能を説明する。
W.L.GORE社からの、高屈曲、及び厳しい環境のためのフラットケーブル(外部層PTFE、GORE(登録商標)高屈曲性ケーブル)を、超音波浴内で前処理した。乾燥後、表面をメチルエチルケトンで更に洗浄した。
例8の手順に従い、高屈曲、及び厳しい環境のためのフラットケーブルの構成GSC―06―25743―00 AWM 21090(W.L.GORE社)を、Flemion F950(FSS―1、AGC)溶液で処理した。表1に示す結果は、被覆したフラットケーブルの構成において、20℃、及び相対湿度33%において測定した表面抵抗を表す。
Claims (15)
- 非導電性基材上に帯電防止被覆を形成するための、水素型のイオン性フルオロポリマーの使用。
- 被覆した基材が104〜1011Ω/□の表面抵抗を有する、請求項1に記載した使用。
- 被覆していない基材の表面抵抗が、帯電防止被覆によって少なくとも1/102に減少した、請求項1又は2のいずれか一項に記載した使用。
- 被覆した基材が、相対湿度20パーセントにおいて、2秒未満の電荷減衰時間を有する、請求項1〜3のいずれか一項に記載した使用。
- 基材上の被覆の被覆量が、0.1g/m2〜10g/m2である、請求項1〜4のいずれか一項に記載した使用。
- 基材がポリマー基材である、請求項1〜5のいずれか一項に記載した使用。
- ポリマー基材がフルオロポリマーである、請求項6に記載した使用。
- フルオロポリマーがポリテトラフルオロエチレン(PTFE)である、請求項7に記載した使用。
- 基材が多孔性である、請求項1〜8のいずれか一項に記載した使用。
- PTFEが延伸PTFEである、請求項8に記載した使用。
- 被覆した基材が透気性である(ガーレー数100秒未満)、請求項9又は10のいずれか一項に記載した使用。
- イオン性フルオロポリマーの当量が500〜2,000g/molである、請求項1〜11のいずれか一項に記載した使用。
- 被覆した基材が衣服、布地構造、ラミネート、フィルタ要素、換気要素、センサ、診断装置、保護囲い、又は分離要素中に存在する、請求項1〜12のいずれか一項に記載した使用。
- 最外部の非導電性層を含むケーブルであって、非導電性層の上に水素型のイオン性フルオロポリマーを含む被覆を有する、ケーブル。
- ケーブルがフラットケーブルである、請求項14に記載したケーブル。
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EP11002150.8A EP2500393B1 (en) | 2011-03-15 | 2011-03-15 | Use of an ionic fluoropolymer as antistatic coating |
PCT/EP2012/001118 WO2012123103A1 (en) | 2011-03-15 | 2012-03-13 | Use of an ionic fluoropolymer as antistatic coating |
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EP3384327B1 (en) | 2015-12-04 | 2023-09-20 | Essilor International | Antistatic film and lamination thereof |
US20210071039A1 (en) * | 2018-01-22 | 2021-03-11 | W. L. Gore & Associates Gmbh | Compositions for forming antistatic coatings and articles coated with the compositions |
CN114026963A (zh) * | 2019-05-23 | 2022-02-08 | 恩特格里斯公司 | 静电放电缓和管 |
WO2021091312A1 (ko) * | 2019-11-07 | 2021-05-14 | 엘에스전선 주식회사 | 케이블류 보호장치용 슬리브 및 이를 포함하는 케이블류 보호장치 |
CN113793962B (zh) * | 2021-08-11 | 2023-09-19 | 广州市乐基智能科技有限公司 | 一种燃料电池粘结剂及其制备方法、应用 |
CN113956694A (zh) * | 2021-09-26 | 2022-01-21 | 齐耐润工业设备(上海)有限公司 | 一种特氟龙涂层及其制备方法 |
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JP5873111B2 (ja) | 2016-03-01 |
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