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Open AccessArticle

Composite Films of Polydimethylsiloxane and Micro-Graphite with Tunable Optical Transmittance

Engineering Research Center of Optical Instruments and Systems, Ministry of Education and Shanghai Key Laboratory of Modern Optical Systems, University of Shanghai for Science and Technology, Shanghai 200093, China
Author to whom correspondence should be addressed.
Appl. Sci. 2019, 9(12), 2402;
Received: 24 May 2019 / Revised: 10 June 2019 / Accepted: 10 June 2019 / Published: 13 June 2019
(This article belongs to the Special Issue Synthesis, Characterization and Application of Hybrid Composites)
In this paper we introduce a polydimethylsiloxane (PDMS) composite fabricated using a simple production process and demonstrate the optical transmittance properties of this composite in the 300–1000 nm wavelength region. We control the material’s transmittance by varying the microcrystalline graphite powder concentration or the composite film’s thickness. In addition, we tailor the specimens into various trapezoidal shapes and load these specimens by mechanically stretching them in the direction perpendicular to both their base lines and their top lines. The advantage of this method is that a wide range of transmittance properties can be obtained for a given specimen. Furthermore, samples with different trapezoidal shapes have different transmittance tuning capabilities. View Full-Text
Keywords: composite; polymer; crystalline graphite powder; transmittance property composite; polymer; crystalline graphite powder; transmittance property
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Wang, Q.; Sheng, B.; Wu, H.; Huang, Y.; Zhang, D.; Zhuang, S. Composite Films of Polydimethylsiloxane and Micro-Graphite with Tunable Optical Transmittance. Appl. Sci. 2019, 9, 2402.

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