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Materials 2018, 11(1), 41; doi:10.3390/ma11010041

Natural Rubber/Dendrimer Modified Montmorillonite Nanocomposites: Mechanical and Flame-Retardant Properties

College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
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Received: 21 October 2017 / Revised: 20 December 2017 / Accepted: 26 December 2017 / Published: 28 December 2017
(This article belongs to the Section Structure Analysis and Characterization)
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Abstract

A series of flame-retardant nanocomposites were established based on compounding of natural rubber (NR) and dendrimer modified flame-retardant organic montmorillonite (FR-DOMt). The merits of these nanocomposites were focused on their better mechanical and flame-retardant properties. X-ray diffractometer (XRD) together with scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analysis revealed that exfoliation, intercalation, or aggregation status in the NRmatrix can be achieved by addition of different amounts of FR-DOMt. The sound effects of blend ratio of FR-DOMt on mechanical, thermal stability, and flame-retardant (FR) properties of NR were studied. The NR/FR-DOMt-20 composite possessed the highest tensile strength, and this resulted from complicated interactions between layered silicates and elastomers. In addition, with loading of 20 phr of FR-DOMt, the flammability parameters of NR, such as heat release rate (HRR), smoke evolution area (SEA), and carbon monoxide (CO) concentration, were obviously reduced from cone calorimeter analysis. View Full-Text
Keywords: FR-DOMt; natural rubber (NR); nanocomposite; structure; properties FR-DOMt; natural rubber (NR); nanocomposite; structure; properties
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Zhang, C.; Wang, J. Natural Rubber/Dendrimer Modified Montmorillonite Nanocomposites: Mechanical and Flame-Retardant Properties. Materials 2018, 11, 41.

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