Curved Film Microstructure Arrays Fabricated via Mechanical Stretching

We report on curved film microstructure arrays fabricated through polydimethylsiloxane (PDMS) film buckling induced by mechanical stretching. In the process of the microstructure preparation, a PDMA film is glued on a bidirectionally prestretched PDMS sheet that has a square distributed hole array o...

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Autores principales:	Qiushu Zhang, Bei Peng, Mengqi Chu, Pan Wen, Song Wang, Jintao Xu
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	microstructure arrays film buckling mechanical stretching PDMS Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/ef43848355a24ad8babacdcfbbe8f4ef
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spelling	oai:doaj.org-article:ef43848355a24ad8babacdcfbbe8f4ef2021-11-25T18:22:46ZCurved Film Microstructure Arrays Fabricated via Mechanical Stretching10.3390/mi121112812072-666Xhttps://doaj.org/article/ef43848355a24ad8babacdcfbbe8f4ef2021-10-01T00:00:00Zhttps://www.mdpi.com/2072-666X/12/11/1281https://doaj.org/toc/2072-666XWe report on curved film microstructure arrays fabricated through polydimethylsiloxane (PDMS) film buckling induced by mechanical stretching. In the process of the microstructure preparation, a PDMA film is glued on a bidirectionally prestretched PDMS sheet that has a square distributed hole array on its surface. After releasing the prestrain, the film microstructure array is created spontaneously. The fabricated microstructures possess a spherical surface and demonstrate very good uniformity. The film microstructure arrays can serve as microlens arrays with a focal length of 1010 μm. The microstructure formation mechanism is investigated via theoretical analysis and numerical simulation. The simulation results agree well with the experimental results. The prestrain applied by mechanical stretching during the fabrication has an important effect on the shape of the resulting film microstructures. The microstructure geometry can be easily tuned through controlling the applied prestrain.Qiushu ZhangBei PengMengqi ChuPan WenSong WangJintao XuMDPI AGarticlemicrostructure arraysfilm bucklingmechanical stretchingPDMSMechanical engineering and machineryTJ1-1570ENMicromachines, Vol 12, Iss 1281, p 1281 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	microstructure arrays film buckling mechanical stretching PDMS Mechanical engineering and machinery TJ1-1570
spellingShingle	microstructure arrays film buckling mechanical stretching PDMS Mechanical engineering and machinery TJ1-1570 Qiushu Zhang Bei Peng Mengqi Chu Pan Wen Song Wang Jintao Xu Curved Film Microstructure Arrays Fabricated via Mechanical Stretching
description	We report on curved film microstructure arrays fabricated through polydimethylsiloxane (PDMS) film buckling induced by mechanical stretching. In the process of the microstructure preparation, a PDMA film is glued on a bidirectionally prestretched PDMS sheet that has a square distributed hole array on its surface. After releasing the prestrain, the film microstructure array is created spontaneously. The fabricated microstructures possess a spherical surface and demonstrate very good uniformity. The film microstructure arrays can serve as microlens arrays with a focal length of 1010 μm. The microstructure formation mechanism is investigated via theoretical analysis and numerical simulation. The simulation results agree well with the experimental results. The prestrain applied by mechanical stretching during the fabrication has an important effect on the shape of the resulting film microstructures. The microstructure geometry can be easily tuned through controlling the applied prestrain.
format	article
author	Qiushu Zhang Bei Peng Mengqi Chu Pan Wen Song Wang Jintao Xu
author_facet	Qiushu Zhang Bei Peng Mengqi Chu Pan Wen Song Wang Jintao Xu
author_sort	Qiushu Zhang
title	Curved Film Microstructure Arrays Fabricated via Mechanical Stretching
title_short	Curved Film Microstructure Arrays Fabricated via Mechanical Stretching
title_full	Curved Film Microstructure Arrays Fabricated via Mechanical Stretching
title_fullStr	Curved Film Microstructure Arrays Fabricated via Mechanical Stretching
title_full_unstemmed	Curved Film Microstructure Arrays Fabricated via Mechanical Stretching
title_sort	curved film microstructure arrays fabricated via mechanical stretching
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/ef43848355a24ad8babacdcfbbe8f4ef
work_keys_str_mv	AT qiushuzhang curvedfilmmicrostructurearraysfabricatedviamechanicalstretching AT beipeng curvedfilmmicrostructurearraysfabricatedviamechanicalstretching AT mengqichu curvedfilmmicrostructurearraysfabricatedviamechanicalstretching AT panwen curvedfilmmicrostructurearraysfabricatedviamechanicalstretching AT songwang curvedfilmmicrostructurearraysfabricatedviamechanicalstretching AT jintaoxu curvedfilmmicrostructurearraysfabricatedviamechanicalstretching
_version_	1718411293805772800

Curved Film Microstructure Arrays Fabricated via Mechanical Stretching

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