Rheological, Mechanical, and Thermal Properties of Silane Grafted Layered Double Hydroxide/Epoxy Composites
IR@CMERI: CSIR- Central Mechanical Engineering Research Institute (CMERI), Durgapur
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| Title |
Rheological, Mechanical, and Thermal Properties of Silane Grafted Layered Double Hydroxide/Epoxy Composites
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| Creator |
Chhetri, Suman
Adak, Nitai Chandra Samanta, Pranab Murmu, Naresh Chandra Kuila, Tapas |
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| Subject |
Analysis of composite material structures
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| Description |
Judicious surface design of a nanofiller is pertinent to exploit its reinforcing competency in polymer composites. Herein, sodium dodecyl sulfate intercalated layered double hydroxide (LDH) was functionalized using 3-aminopropyltriethoxysilane (APTES), which was then dispersed in the epoxy matrix. The grafting of APTES on the LDH surface was confirmed by Fourier transform infrared spectroscopy, X-ray diffraction, and thermogravimetric analysis. The robustness of the interface reflected the significant improvement of ∼104 and 90% in flexural strength and modulus at 0.25 wt % loading, while the tensile strength and Young̀s modulus were found to increase by ∼44 and 50.8%, respectively. The tangible improvement in interfacial interaction due to the functionlization was further reflected in the enhanced storage modulus and glass transition temperature, Tg, by ∼36% and ∼6 °C, respectively, at 0.25 wt % loading. A rheological study confirmed the Newtonian behavior of the composites in the shear rate range of 0.1–100 s–1.
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| Publisher |
ACS
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| Date |
2018
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| Type |
Article
PeerReviewed |
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| Identifier |
Chhetri, Suman and Adak, Nitai Chandra and Samanta, Pranab and Murmu, Naresh Chandra and Kuila, Tapas (2018) Rheological, Mechanical, and Thermal Properties of Silane Grafted Layered Double Hydroxide/Epoxy Composites. Industrial & Engineering Chemistry Research, 57 (26). pp. 8729-8739.
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| Relation |
http://cmeri.csircentral.net/576/
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