JP2009234249A - 超疎水性ポリマー加工物 - Google Patents
超疎水性ポリマー加工物 Download PDFInfo
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- Y10T428/00—Stock material or miscellaneous articles
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- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10T428/00—Stock material or miscellaneous articles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
【解決手段】超疎水性ポリマー加工物を作製するための一方法により、超疎水性ポリマー加工物を迅速かつ容易に製造することができ、超疎水性表面はテンプレートを用いて繰り返しインプリントすることができ、ゆえに、大きな面積にわたる超疎水性ポリマー加工物の大量生産を経済的に行うことができる。
【選択図】図1
Description
図1は、超疎水性ポリマー加工物を作製するための方法の例示的実施例の概略図である。図1に示したように、Alプレートをエッチングして、階層構造を有するアルミニウム・テンプレートを形成する。次いで、テンプレート上に配置されたポリマーに熱および圧力をかける。次いで、テンプレートからポリマー加工物を複製して、超疎水性ポリマー加工物を作製する。
超疎水性ポリマー加工物を作製するためのテンプレートとして、アルミニウム(Al)プレートを用いた。
エッチング液は、Al表面に露出した欠陥およびAl結晶の不完全な部分を最初に攻撃することによって、エッチングを行う。これにより、エッチング時間にかかわらず、ほとんど同様の構造を有するAl表面になるはずであるが、図3によって例示したように、Alの表面構造はエッチング時間によって変化する。エッチング時間の増加によってミクロン・サイズの構造がナノ・サイズの構造に変形される理由を判定するために、温度と構造変化との間の相関の分析を行った。
上述したように製造したAlテンプレートを用いて、熱および圧力を用いる方法により、約20分間、HDPEのポリマー複製を行った。HDPEの場合、約150℃でポリマー複製を行い、次いでこれを室温に冷却し、ストリッピング法(stripping method)によってテンプレートを複製物から取り除いた。
ポリマー加工物の表面に対する水滴の接触角を測定することによって、複製されたポリマー加工物の表面が超疎水性を呈するかどうかを確認した。Florian Exlらによる文献「Proceedings of the XIVth International Symposium on High Voltage Engineering、2005、D−47」に開示された方法を測定方法として使用した。図8および9は、それぞれのポリマー加工物に関して、9つの異なる点で測定した平均接触角を例示する。
超疎水性ポリマー加工物を実際に適用するために、ポリマー加工物の超疎水性は外部環境または混入物によって損傷しないように安定である必要がある。それゆえ、超疎水性ポリマー加工物が様々なpHを有する様々な溶媒および溶液中でその安定性を維持するかどうかを判定する実験を行った。
超疎水性表面は、それ自体によって混入物を除去することができる自浄効果を呈する。上述したように作製したポリマー加工物の表面が自浄効果を呈するかどうかを確認するために、HDPEポリマー加工物の表面上に活性炭を均一に置き、次いで注射器を用いて水滴を1滴ずつ表面上に滴下した。結果として、所定の角度(2°から5°)で傾けられたポリマー加工物の表面上で、活性炭は水滴によって除去された。上記手順をデジタル・カメラによって記録した。
Claims (14)
- 超疎水性ポリマー加工物であって、前記ポリマー加工物の表面上に形成されたミクロン・サイズのテラス構造および前記テラス構造内に形成されたナノ・サイズの繊維構造を含む超疎水性ポリマー加工物。
- 前記ポリマーが熱可塑性ポリマーである、請求項1に記載の超疎水性ポリマー加工物。
- 前記熱可塑性ポリマーが、ポリエチレンテレフタレート(PET)、ポリトリメチレンテレフタレート(PTT)、ポリブチレンテレフタレート(PBT)、およびポリエチレンナフタレート(PEN)を含めたポリエステル、ポリエチレン(PE)およびポリプロピレン(PP)を含めたポリアルキレン、ポリ塩化ビニル(PVC)を含めたビニルポリマー、ポリアミド、ポリアセタール、ポリメチルメタクリレート(PMMA)を含めたポリアクリレート、ポリカルボネート、ポリスチレン、ポリウレタン、アクリロニトリル−ブタジエン−スチレンコポリマー(ABS)、ハロゲン化ポリアルキレン、ポリアリーレンオキシド、ならびにポリアリーレンスルフィドからなる群から選択される、請求項2に記載の超疎水性ポリマー加工物。
- 化学的にエッチングされたテンプレートであって、
前記テンプレートの表面上に形成されたミクロン・サイズのテラス構造、および
前記テラス構造内に形成されたナノ・サイズの溝構造を含むテンプレート。 - 前記テンプレートが金属で形成される、請求項4に記載のテンプレート。
- 前記金属が、アルミニウム、スズ、チタン、鉄、銅、亜鉛、ニッケル、タングステン、およびそれらの合金からなる群から選択される、請求項5に記載のテンプレート。
- 前記テンプレートの表面上に形成された前記テラス構造および前記溝構造が、エッチング液によって化学的にエッチングされる、請求項4に記載のテンプレート。
- 前記エッチング液が、HNO3、H3PO4、H2SO4、H2CrO4、HCl、HF、NH4OH、NaOH、およびKOHからなる群から選択される少なくとも1種の溶液の混合物を含む、請求項7に記載のテンプレート。
- 前記テラス構造および前記溝構造の形成が、温度または時間を調節することによって制御される、請求項4に記載のテンプレート。
- 前記温度が0℃から100℃の範囲である、請求項9に記載のテンプレート。
- 前記時間が1秒から10分の範囲である、請求項9に記載のテンプレート。
- 前記テンプレートがプレート形状または円柱形状を有する、請求項4に記載のテンプレート。
- 超疎水性ポリマー加工物を作製するための方法であって、
化学エッチングによって、テンプレートの表面上にミクロン・サイズのテラス構造および前記テラス構造内にナノ・サイズの溝構造を形成する工程、
前記エッチングされたテンプレート上に配置されたポリマーに熱および圧力をかけて、前記エッチングされたテンプレートからポリマー加工物を複製する工程、および
前記複製されたポリマー加工物を前記テンプレートから取り外す工程を含む方法。 - 前記ミクロン・サイズのテラス構造および前記テラス構造内の前記ナノ・サイズの繊維構造が、超疎水性ポリマー加工物の表面上に形成される、請求項13に記載の方法。
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KR10-2008-0028188 | 2008-03-27 | ||
KR1020080028188A KR101033273B1 (ko) | 2008-03-27 | 2008-03-27 | 초소수성 폴리머 구조물의 제조 |
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JP2014079892A (ja) * | 2012-10-12 | 2014-05-08 | Dainippon Printing Co Ltd | 濡れ性制御素子及びその製造方法 |
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CN101879781B (zh) * | 2010-06-21 | 2012-11-21 | 浙江工业大学 | 以钢辊为模板制备聚合物超疏水表面的方法 |
CN103180060A (zh) * | 2010-10-28 | 2013-06-26 | 3M创新有限公司 | 超疏水性膜构造 |
CN102093697B (zh) * | 2010-12-15 | 2012-10-03 | 中国人民解放军国防科学技术大学 | 仿荷叶表面的超疏水薄膜及其制备方法 |
KR101233768B1 (ko) * | 2010-12-30 | 2013-02-15 | 포항공과대학교 산학협력단 | 나노 임프린트 몰드 제조방법, 이 방법에 의해 제조된 나노 임프린트 몰드를 이용한 발광다이오드 제조방법 및 이 방법에 의해 제조된 발광다이오드 |
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TWI481545B (zh) * | 2011-01-11 | 2015-04-21 | Univ Nat Cheng Kung | 超疏水性微結構 |
EP2681259A4 (en) * | 2011-02-28 | 2018-02-21 | Research Foundation Of The City University Of New York | Polymers having superhydrophobic surfaces |
US9556554B2 (en) | 2011-02-28 | 2017-01-31 | Research Foundation Of The City University Of New York | Flexible fabric having superhydrophobic surface |
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JP5666085B2 (ja) | 2015-02-12 |
JP5766823B2 (ja) | 2015-08-19 |
US8455084B2 (en) | 2013-06-04 |
US7887736B2 (en) | 2011-02-15 |
KR101033273B1 (ko) | 2011-05-09 |
US20090246473A1 (en) | 2009-10-01 |
DE102008057346A1 (de) | 2009-10-01 |
CN101544770B (zh) | 2013-01-02 |
JP2014073687A (ja) | 2014-04-24 |
US20110097534A1 (en) | 2011-04-28 |
CN101544770A (zh) | 2009-09-30 |
KR20090102922A (ko) | 2009-10-01 |
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