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المؤلفPonnamma D.
المؤلفRamachandran R.
المؤلفHussain S.
المؤلفRajaraman R.
المؤلفAmarendra G.
المؤلفVarughese K.T.
المؤلفThomas S.
تاريخ الإتاحة2022-05-31T19:01:11Z
تاريخ النشر2015
اسم المنشورComposites Part A: Applied Science and Manufacturing
المصدرScopus
المعرّفhttp://dx.doi.org/10.1016/j.compositesa.2015.06.023
معرّف المصادر الموحدhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84936953313&doi=http://dx.doi.org/10.1016%2fj.compositesa.2015.06.023&partnerID=40&md5=47cc19fdbb9fd94bc6f2935e394e93c7
معرّف المصادر الموحدhttp://hdl.handle.net/10576/31745
الملخصAbstract The microstructure, mechanical strength, dielectric properties, Doppler broadening measurements and positron life time studies of the composites containing multi walled carbon nanotubes (MWCNTs) and natural rubber (NR) are investigated. The uniform distribution of MWCNTs in the elastomer medium is studied by Raman spectroscopy and the electron microscopy images show the composite's internal microstructure. Free volume sizes and interstitial mesopore sizes of the nanocomposites are determined by positron annihilation lifetime spectroscopy (PALS). PALS investigates the influence of the nanotubes in regulating the interphase nanoscale character. Strong interfacial interaction causes an apparent reduction of the free-volume fraction of NR probably by depressing the formation of free-volume holes in the interfacial region. The mechanical percolation and percolation observed from the dielectric measurements are correlated with the life time values. It is established that the sub-nano level free volumes and nano level structure of the composites have significant roles in regulating the mechanical properties.
اللغةen
الناشرElsevier Ltd
الموضوعA. Nano-structures
A. Polymer-matrix composites (PMCs)
B. Electrical properties
D. Mechanical testing
العنوانFree-volume correlation with mechanical and dielectric properties of natural rubber/multi walled carbon nanotubes composites
النوعArticle
الصفحات164-171
رقم المجلد77
dc.accessType Abstract Only


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