Nanoimprinting of Flexible Polycarbonate Sheets with a Flexible Polymer Mold and Application to Superhydrophobic Surfaces

Chia Ching Liang, Chun Hung Lin, Tsung Chieh Cheng, Jiann Shieh, Hsi Ho Lin

研究成果: Article

19 引文 (Scopus)

摘要

This study demonstrates a reliable process for the direct nanoimprinting of a flexible polycarbonate (PC) sheet using a perfluoropolyether (PFPE) mold. PC is a commonly used flexible substrate with optical transparency, low thermal expansion coefficient, high mechanical strength, and excellent deformation resistivity. The imprint performances of PFPE, hard/soft-polydimethylsiloxane, and silicon molds are compared. Given that the heating temperature is near the glass transition temperature (≈153 °C) of PC, only PFPE mold can be fully patterned into PC substrate with viable integrity. The mechanical property and gas permeability of the materials are investigated to determine the mechanism of the flexible PFPE mold, which performs better than a rigid silicon mold. Nanoimprint process using a PFPE mold is performed at 153 °C and 5 bars. The lower imprint temperature or imprint pressure of the proposed process compared with those from previous studies is favorable in nanoimprinting. Finally, nanoroughness-on-nanopillar hierarchical surfaces, which possess superhydrophobic slippery characteristics superior to those of nanoroughness-only surfaces, are obtained by treating PC nanopillar arrays imprinted by PFPE mold with C4F8 plasma.

原文English
文章編號1500030
期刊Advanced Materials Interfaces
2
發行號7
DOIs
出版狀態Published - 2015 五月 1

指紋

Polycarbonates
Polymers
Silicon
Gas permeability
Molds
Substrates
Polydimethylsiloxane
Transparency
Strength of materials
Thermal expansion
Plasmas
Heating
Mechanical properties
Temperature

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering

引用此文

@article{5ee54260903d42c7a93a3647d421c4de,
title = "Nanoimprinting of Flexible Polycarbonate Sheets with a Flexible Polymer Mold and Application to Superhydrophobic Surfaces",
abstract = "This study demonstrates a reliable process for the direct nanoimprinting of a flexible polycarbonate (PC) sheet using a perfluoropolyether (PFPE) mold. PC is a commonly used flexible substrate with optical transparency, low thermal expansion coefficient, high mechanical strength, and excellent deformation resistivity. The imprint performances of PFPE, hard/soft-polydimethylsiloxane, and silicon molds are compared. Given that the heating temperature is near the glass transition temperature (≈153 °C) of PC, only PFPE mold can be fully patterned into PC substrate with viable integrity. The mechanical property and gas permeability of the materials are investigated to determine the mechanism of the flexible PFPE mold, which performs better than a rigid silicon mold. Nanoimprint process using a PFPE mold is performed at 153 °C and 5 bars. The lower imprint temperature or imprint pressure of the proposed process compared with those from previous studies is favorable in nanoimprinting. Finally, nanoroughness-on-nanopillar hierarchical surfaces, which possess superhydrophobic slippery characteristics superior to those of nanoroughness-only surfaces, are obtained by treating PC nanopillar arrays imprinted by PFPE mold with C4F8 plasma.",
author = "Liang, {Chia Ching} and Lin, {Chun Hung} and Cheng, {Tsung Chieh} and Jiann Shieh and Lin, {Hsi Ho}",
year = "2015",
month = "5",
day = "1",
doi = "10.1002/admi.201500030",
language = "English",
volume = "2",
journal = "Advanced Materials Interfaces",
issn = "2196-7350",
publisher = "John Wiley and Sons Ltd",
number = "7",

}

Nanoimprinting of Flexible Polycarbonate Sheets with a Flexible Polymer Mold and Application to Superhydrophobic Surfaces. / Liang, Chia Ching; Lin, Chun Hung; Cheng, Tsung Chieh; Shieh, Jiann; Lin, Hsi Ho.

於: Advanced Materials Interfaces, 卷 2, 編號 7, 1500030, 01.05.2015.

研究成果: Article

TY - JOUR

T1 - Nanoimprinting of Flexible Polycarbonate Sheets with a Flexible Polymer Mold and Application to Superhydrophobic Surfaces

AU - Liang, Chia Ching

AU - Lin, Chun Hung

AU - Cheng, Tsung Chieh

AU - Shieh, Jiann

AU - Lin, Hsi Ho

PY - 2015/5/1

Y1 - 2015/5/1

N2 - This study demonstrates a reliable process for the direct nanoimprinting of a flexible polycarbonate (PC) sheet using a perfluoropolyether (PFPE) mold. PC is a commonly used flexible substrate with optical transparency, low thermal expansion coefficient, high mechanical strength, and excellent deformation resistivity. The imprint performances of PFPE, hard/soft-polydimethylsiloxane, and silicon molds are compared. Given that the heating temperature is near the glass transition temperature (≈153 °C) of PC, only PFPE mold can be fully patterned into PC substrate with viable integrity. The mechanical property and gas permeability of the materials are investigated to determine the mechanism of the flexible PFPE mold, which performs better than a rigid silicon mold. Nanoimprint process using a PFPE mold is performed at 153 °C and 5 bars. The lower imprint temperature or imprint pressure of the proposed process compared with those from previous studies is favorable in nanoimprinting. Finally, nanoroughness-on-nanopillar hierarchical surfaces, which possess superhydrophobic slippery characteristics superior to those of nanoroughness-only surfaces, are obtained by treating PC nanopillar arrays imprinted by PFPE mold with C4F8 plasma.

AB - This study demonstrates a reliable process for the direct nanoimprinting of a flexible polycarbonate (PC) sheet using a perfluoropolyether (PFPE) mold. PC is a commonly used flexible substrate with optical transparency, low thermal expansion coefficient, high mechanical strength, and excellent deformation resistivity. The imprint performances of PFPE, hard/soft-polydimethylsiloxane, and silicon molds are compared. Given that the heating temperature is near the glass transition temperature (≈153 °C) of PC, only PFPE mold can be fully patterned into PC substrate with viable integrity. The mechanical property and gas permeability of the materials are investigated to determine the mechanism of the flexible PFPE mold, which performs better than a rigid silicon mold. Nanoimprint process using a PFPE mold is performed at 153 °C and 5 bars. The lower imprint temperature or imprint pressure of the proposed process compared with those from previous studies is favorable in nanoimprinting. Finally, nanoroughness-on-nanopillar hierarchical surfaces, which possess superhydrophobic slippery characteristics superior to those of nanoroughness-only surfaces, are obtained by treating PC nanopillar arrays imprinted by PFPE mold with C4F8 plasma.

UR - http://www.scopus.com/inward/record.url?scp=84938651564&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84938651564&partnerID=8YFLogxK

U2 - 10.1002/admi.201500030

DO - 10.1002/admi.201500030

M3 - Article

AN - SCOPUS:84938651564

VL - 2

JO - Advanced Materials Interfaces

JF - Advanced Materials Interfaces

SN - 2196-7350

IS - 7

M1 - 1500030

ER -