JP2021524404A - 熱絶縁材料及びその方法 - Google Patents
熱絶縁材料及びその方法 Download PDFInfo
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- JP2021524404A JP2021524404A JP2021503904A JP2021503904A JP2021524404A JP 2021524404 A JP2021524404 A JP 2021524404A JP 2021503904 A JP2021503904 A JP 2021503904A JP 2021503904 A JP2021503904 A JP 2021503904A JP 2021524404 A JP2021524404 A JP 2021524404A
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- core layer
- fibers
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- woven
- insulating material
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- B—PERFORMING OPERATIONS; TRANSPORTING
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Abstract
Description
本明細書で使用される場合、
「周囲条件」は、25℃かつ圧力101.3kPaであることを意味する。
図1に、一実施形態による未封止の断熱材を示し、以降では参照数字100で示す。未封止の断熱材100は、一対のスクリム102、102の間に配置された不織布コア層101を含む。図示のように、スクリム102、102は、直径方向に対向しており、各スクリム102は、不織布コア層101にわたって延びており、不織布コア層101に直接接触している。
不織布コア層は、複数の非溶融性ポリマー繊維で構成される。これらは、どんな温度でも液体にならないポリマーから作製された繊維である。場合によっては、これらのポリマーは、空気の存在下で加熱されると、最初に酸化するため、溶融しない。非溶融性ポリマー繊維は、炭素繊維、炭素繊維前駆体、又はこれらの組み合わせを含むことができる。
任意選択で、不織布コア層は、複数の酸化ポリアクリロニトリル繊維と、これとブレンドされた、強化繊維として知られる複数の二次繊維との両方を含む。強化繊維は、不織布コア層の後続の溶融処理を可能にするのに十分に低い溶融温度を有するバインダー繊維を含んでもよい。バインダー繊維は一般に、ポリマーであり、均一な組成を有してもよく、又は2種以上の成分を含有してもよい。いくつかの実施形態では、バインダー繊維は、繊維の軸に沿って延び、かつ、円筒状シェルポリマーによって取り囲まれている、コアポリマーで構成される2成分繊維である。シェルポリマーは、コアポリマーの溶融温度よりも低い溶融温度を有することができる。
不織布コア層は、任意選択で、断熱材の縁部シールを可能にするバインダーを含む。バインダーは、スクリム及び/又は不織布コア層上に配置することができる。バインダーの存在により、バインダーの少なくとも一部を溶融することによって、スクリムの周縁部を縁部シールすることが可能になる。
図1〜図3で参照されるスクリムは特に限定されておらず、織布又は不織布のいずれかである任意の種類のオープンメッシュ構造を含むことができる。
提供される断熱材は、バッチ法及び連続法を含む様々な方法で作製することができる。
不織布コア層の両主表面上に配置された1つ以上のスクリムと、を備える多層断熱材であって、1つ以上のスクリム内に不織布コア層を実質的に封入するために、1つ以上のスクリムの周縁部が、縁部シールされている、又は縁部シールが可能であるのいずれかである、多層断熱材。
スクリムの周縁部を縁部シールして、スクリム内に不織布コア層を実質的に封入することと、を含む方法。
表面基本重量測定:不織布ウェブの一部分を30.5cm×30.5cm(12インチ×12インチ)に切断して、重量を測定した。その一部分の重量(グラム単位)を表面積(0.0929m2)で除して表面基本重量を求め、g/m2(「gsm」)単位で報告した。
50mmの切断長さの80%(重量%)のOPAN 2、及び20%(重量%)のTREVIRA 276短繊維を、これらの繊維をSantex AG製のWave−Makerシステムに通過させてカーディングし、150gsmのコアウェブを形成した。コアウェブの厚さを6mmに維持しながら、試料を150℃でオーブン活性化して高温ポリエステル繊維を溶融し、OPAN繊維を結合させた。この試料に火炎試験を施し、その結果を表2に表した。
50mmの切断長さの80%(重量%)のOPAN 2、及び20%(重量%)のTREVIRA 276短繊維を、これらの繊維をSantex AG製のWave−Makerシステムに通過させてカーディングし、150gsmのコアウェブを形成した。このコアウェブを、75ニードル/列の23列のニードルボードアレイを有するDilo Needle Loom,Model DI−Loom OD−1 6(Eberbach,Germany)に搬送した。これらの列は、パターンをランダム化するためにわずかにオフセットされている。ニードルは、Foster 20 3−22−1.5Bのニードルであった。アレイは、機械方向において深さ約17.8センチ(7インチ)、かつ、公称幅61cm(24インチ)であり、ニードルの間隔は、約7.6mm(0.30インチ)であった。ニードルボードを91ストローク/分で動作させてウェブを交絡させ、約5.1mm(0.20インチ)の厚さまで圧縮した。この試料に火炎試験を施し、その結果を表2に表した。
50mmの切断長さの80%(重量で)のOPAN 1、及び20%(重量で)のTREVIRA 270短繊維を、これらの繊維をSantex AG製のWave−Makerシステムに通過させてカーディングし、100gsm、8mmのコアウェブを形成した。コアウェブの厚さを8mmに維持しながら、試料をDespatch(Minneapolis,MN)製のDesptach乾燥オーブンを用いて250℃でオーブン活性化して、高温ポリエステル繊維を溶融し、OPAN繊維を結合させた。この試料に火炎試験を施し、その結果を表2に表した。
50mmの切断長さの80%(重量で)のOPAN 1、及び20%(重量で)のTREVIRA 270短繊維を、これらの繊維をSantex AG製のWave−Makerシステムに通過させてカーディングし、100gsm、8mmのウェブを形成した。次いで、ウェブを、Dilo Needle Loom、Model DI−LOOM OD−1 6によってニードルタックした。この試料に火炎試験を施し、その結果を表2に表した。
FR PET Scrimを、調製例1から製作したコアウェブの両側に配置した。コアウェブを、手作業でのニードルタックによりキルティングにした。これらの試料に火炎試験を施し、その結果を表2に表した。
FR PET Scrimを、調製例3及び4から製作したコアウェブ試料の両側に配置した。コアウェブを、手作業でのニードルタックによりキルティングにした。これらの試料に火炎試験を施し、その結果を表2に表した。
接着剤を有するFR PET Scrimを、調製例3及び4から製作したコアウェブ試料の両側に配置した。コアウェブを、手作業でのニードルタックによりキルティングにした。これらの試料に火炎試験を施し、その結果を表2に表した。
実施例1及び2で製作した試料を使用して、2つの10.2cm×17.8cm(4インチ×7インチ)のアルミニウムプレートの間にウェブを配置することによって、PHI Model 0238−Hホットプレスを用いて縁部を封止した。ウェブの縁部を150℃(302°F)かつ2.7MPaで2.5分間ホットプレスして、0.6mmの厚さにした。これらの試料に火炎試験を施し、その結果を表2に表した。
調製例3及び4からのコアウェブを、MS(Manufacturers Supplies Co.)(Springfield,NH)製Atom SE231プレス及びナイフカッターを使用して、27.9cm×27.9 cm(11インチ×11インチ)の正方形にダイカットした。接着剤を有する2つのFR PET Scrimを、30.5cm×30.5cm(12インチ×12インチの正方形)にダイカットした。次いで、FR PET Scrimを、このスクリムの1.3cm(0.5インチ)が4辺全ての上でコアウェブに重なり、接着剤層がコアに面した状態で、コアウェブの上下に積層した。次いで、この試料の縁部を、PHI Model 0238−Hホットプレスでホットプレスし、変更されたスクリムサイズ(27.9 cm×27.9cm(11インチ×11インチ))に一致するアルミニウムプレート同士の間にこの試料を配置することによって封止した。ウェブの縁部を140℃(280°F)かつ2.7MPaで2.5分間ホットプレスして、0.2mmの厚さにした。これらの試料に火炎試験を施し、その結果を表2に表した。
実施例3及び4で製作した試料の縁部を、固形分が10%のTHV配合物に浸漬した。この配合物は、固形分が50%のTHV340z1部を水4部と混合して10%の固形分を作ることによって作製した。次いで、この試料を、150℃のDespatch(Minneapolis,MN)製Despatch乾燥オーブン内に3分間配置して、乾燥させた。これらの試料に火炎試験を施し、その結果を表2に表した。
ECOSS Inc(Tampa,FL)から(Amazon.comを通じて)入手した粉末スプレーガンを使用して、固形分が5%のTHV 340Zのコーティングを調製例3で製作したコアウェブの頂部及び底部に噴霧した。この配合物は、固形分が50%のTHV340Z1部を水9部と混合して5%の固形分を作ることによって作製した。この試料を、150℃のDespatch(Minneapolis,MN)製Despatch乾燥オーブン内に5分間配置して、乾燥させた。この試料に火炎試験を施し、その結果を表2に表した。
ECOSS Inc(Tampa,FL)から(Amazon.comを通じて)入手した粉末スプレーガンを使用して、固形分が5%のB−15Jのコーティングを調製例3で製作したコアウェブの頂部及び底部に噴霧した。この配合物は、固形分が50%のB−15J1部を水9部と混合して5%の固形分を作ることによって作製した。この試料を、150℃のDespatch(Minneapolis,MN)製Despatch乾燥オーブン内に3分間配置して、乾燥させた。この試料に火炎試験を施し、その結果を表2に表した。
調製例3によってコアウェブを製作した。FlackTek Inc(Landrum,SC)製のDAC150スピードミキサーを用いて、5%のB−15Jを、10%のAP420と混合して、300gsmの混合物(5%のB15及び10%のAP420を有する)を製作した。ECOSS Inc(Tampa)から(Amazon.comを通じて)入手した粉末スプレーガンを使用して、混合物をコアウェブの頂部及び底部に噴霧して、表面を得た。2つのFR PET Scrimをコアウェブの頂部層及び底部層上に配置した。この試料を、150℃のDespatch(Minneapolis,MN)製Despatch乾燥オーブン内に5分間配置して、乾燥させた。次いで、ウェブを進めさせ、Dilo Needle Loom、Model DI−LOOM OD−1 6でニードルタックした。PHI Model 0238−Hホットプレスを用いて、2つの10.2cm×17.8cm(4インチ×7インチ)のアルミニウムプレートの間にウェブを配置することによって、縁部を封止した。ウェブの縁部を171℃(340°F)かつ2.7MPaで2.5分間ホットプレスして、0.6mmの厚さにした。この試料に火炎試験を施し、その結果を表2に表した。
調製例3によってコアウェブを製作した。FlackTek Inc(Landrum,SC)製のDAC150スピードミキサーを用いて、5%のB−15Jを、10%のAP420と混合して、300gsmの混合物(5%のB15及び10%のAP420を有する)を製作した。ECOSS Inc(Tampa)から(Amazon.comを通じて)入手した粉末スプレーガンを使用して、混合物をコアウェブの頂部及び底部に噴霧して、表面を得た。2つのWhite PET Scrimを、コアウェブの頂部及び底部上のコーティングを覆うようにニップロールすることによって適用した。この試料を、150℃のDespatch(Minneapolis,MN)製Despatch乾燥オーブン内に5分間配置して、乾燥させた。次いで、ウェブを進めさせ、Dilo Needle Loom、Model DI−LOOM OD−1 6でニードルタックした。PHI Model 0238−Hホットプレスを用いて、2つの10.2cm×17.8cm(4インチ×7インチ)のアルミニウムプレートの間にウェブを配置することによって、縁部を封止した。ウェブの縁部を171℃(340°F)かつ2.7MPaで2.5分間ホットプレスして、0.4mmの厚さにした。ウェブの縁部を171℃(340°F)かつ10.8MPaで2.5分間ホットプレスして、0.4mmの厚さにした。この試料に火炎試験を施し、その結果を表2に表した。
調製例3によってコアウェブを製作した。2つのWhite PET Scrimを各コアウェブの頂部層及び底部層上に配置した。表3に表した配合物を、調製例5によって製作したFR PET Scrim上にスプレーコーティングした。ECOSS Inc(Tampa,FL)から(Amazon.comを通じて)入手した粉末スプレーガンを使用してコーティングを適用した。処方は、FlackTek Inc(Landrum,SC)製のDAC150速度ミキサーで混合した。実施例21、22、及び24においてのみ、PHI Model 0238−Hホットプレスを用いて、2つの10.2cm×17.8cm(4インチ×7インチ)のアルミニウムプレートの間にウェブを配置することによって、縁部を封止した。ウェブの縁部を171℃(340°F)かつ2.7MPaで2.5分間ホットプレスして、0.4mmの厚さにした。別の方法として、White PET Scrimをコアウェブにクリップした。これらの試料に火炎試験を施し、その結果を表2に表した。
Claims (15)
- 非溶融性の耐炎性ポリマー繊維を含む不織布コア層と、
前記不織布コア層の両主表面上に配置された1つ以上のスクリムとを備える多層断熱材であって、
前記1つ以上のスクリム内に前記不織布コア層を実質的に封入するために、前記1つ以上のスクリムの周縁部が、縁部シールされている、又は縁部シールが可能であるのいずれかである、多層断熱材。 - 前記非溶融性のポリマー繊維は、炭素繊維、炭素繊維前駆体、又はこれらの組み合わせを含む、請求項1に記載の多層断熱材。
- 前記スクリム及び/又は前記不織布コア層上に配置されたバインダーを更に含み、
前記周縁部は、前記バインダーの少なくとも一部を溶融することによって縁部シールされている、又は縁部シール可能であるのいずれかである、請求項1又は2に記載の多層断熱材。 - 前記バインダーは、前記1つ以上のスクリム及び/又は前記不織布コア層上に配置されたコーティングによって提供される、請求項3に記載の多層断熱材。
- 前記コーティングは、ポリマーラテックスを含む、請求項4に記載の多層断熱材。
- 前記コーティングは、難燃性添加剤を更に含む、請求項4又は5に記載の多層断熱材。
- 前記難燃性添加剤は、ポリリン酸アンモニウムを含む、請求項6に記載の多層断熱材。
- 前記不織布コア層は、強化繊維を更に含み、前記強化繊維の各々は、100℃〜300℃の溶融温度を有するポリマーからなる外面を有する、請求項1〜7のいずれか一項に記載の多層断熱材。
- 各スクリムは、耐炎性ポリエステル繊維を含む、請求項1〜8のいずれか一項に記載の多層断熱材。
- 前記周縁部は、前記不織布コア層及び前記1つ以上のスクリムの両方を含む、請求項1〜9のいずれか一項に記載の多層断熱材。
- 前記周縁部が前記スクリムを含むが前記不織布コア層を含まないように、前記1つ以上のスクリムは、前記不織布コア層を越えて延びている、請求項1〜10のいずれか一項に記載の多層断熱材。
- 請求項1〜11のいずれか一項に記載の前記多層断熱材を含む、電気自動車用の電池アセンブリ。
- 非溶融性の耐炎性ポリマー繊維を含む不織布コア層を含有した多層断熱材の製造方法であって、
前記不織布コア層の各主表面に沿ってスクリムを提供することと、
前記スクリムの周縁部を縁部シールして、前記スクリム内に前記不織布コア層を実質的に封入することと、
を含む方法。 - 各スクリムは、耐炎性ポリエステル繊維を含む、請求項13に記載の方法。
- 前記周縁部を縁部シールすることは、
前記スクリム及び/又は前記不織布コア層上にバインダーを提供することと、
熱を加えて前記周縁部に沿って前記バインダーを溶融させることと、
を含む、請求項13又は14に記載の方法。
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EP3826845A4 (en) | 2022-03-09 |
KR20210019104A (ko) | 2021-02-19 |
CN112585008B (zh) | 2023-08-08 |
CN112585008A (zh) | 2021-03-30 |
US20210197520A1 (en) | 2021-07-01 |
US11235552B2 (en) | 2022-02-01 |
WO2020019114A1 (en) | 2020-01-30 |
JP7115721B2 (ja) | 2022-08-09 |
KR20220060561A (ko) | 2022-05-11 |
EP3826845A1 (en) | 2021-06-02 |
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