High stiffness polymer composite with tunable transparency

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dc.contributor.author Owuor, Peter Samora
dc.contributor.author Chaudhary, Varun
dc.contributor.author Woellner, Cristiano F.
dc.contributor.author Sharma, V.
dc.contributor.author Ramanujan, R.V.
dc.contributor.author Stender, Anthony S.
dc.contributor.author Soto, Matias
dc.contributor.author Ozden, Sehmus
dc.contributor.author Barrera, Enrique V.
dc.contributor.author Vajtai, Robert
dc.contributor.author Galvao, Douglas S.
dc.contributor.author Lou, Jun
dc.contributor.author Tiwary, Chandra Sekhar
dc.contributor.author Ajayan, Pulickel M.
dc.date.accessioned 2018-01-30T11:28:17Z
dc.date.available 2018-01-30T11:28:17Z
dc.date.issued 2018-01
dc.identifier.citation Owuor, Peter Samora; Chaudhary, Varun; Woellner, Cristiano F.; Sharma, V.; Ramanujan, R.V.; Stender, Anthony S.; Soto, Matias; Ozden, Sehmus; Barrera, Enrique V.; Vajtai, Robert; Galvao, Douglas S.; Lou, Jun; Tiwary, Chandra Sekhar and Ajayan, Pulickel M., "High stiffness polymer composite with tunable transparency", Materials Today, DOI: 10.1016/j.mattod.2017.12.004, Jan. 2018. en_US
dc.identifier.issn 13697021
dc.identifier.uri https://doi.org/10.1016/j.mattod.2017.12.004
dc.identifier.uri http://repository.iitgn.ac.in/handle/123456789/3392
dc.description.abstract Biological materials are multifunctional performing more than one function in a perfect synergy. These materials are built from fairly simple and limited components at ambient conditions. Such judicious designs have proven elusive for synthetic materials. Here, we demonstrate a multifunctional phase change (pc) composite from simple building blocks, which exhibits high stiffness and optical transmittance control. We show an increase of more than one order of magnitude in stiffness when we embed paraffin wax spheres into an elastomer matrix, polydimethylsiloxane (PDMS) in a dynamic compression test. High stiffness is mainly influenced by presence of microcrystals within the wax. We further show fast temperature-controlled optical switching of the composite for an unlimited number of cycles without any noticeable mechanical degradation. Through experimental and finite element method, we show high energy absorption capability of pc-composite. Based on these properties, the pc-composite could be used as an effective coating on glasses for cars and windows. This simple approach to multi-functionality is exciting and could pave way for designs of other multifunctional materials at the macro-scale.
dc.description.statementofresponsibility by Peter Samora Owuor, Varun Chaudhary, Cristiano F. Woellner, V Sharma, R.V. Ramanujan, Anthony S. Stender, Matias Soto, Sehmus Ozden, Enrique V. Barrera, Robert Vajtai and Douglas S. Galvao
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.title High stiffness polymer composite with tunable transparency en_US
dc.type Article en_US
dc.relation.journal Materials Today


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