Toughening of Polypropylene-Ethylene Copolymer with Nanosized CaCO&lt;sub&gt;3&lt;/sub&gt; and Styrene-Butadiene-Styrene

Chen, Jian Feng; Wang, Guo Quan; Zeng, Xiao Fei; Zhao, Hong Ying

doi:10.4028/3-908451-30-2.1451

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“…The cross-linked ethylene–propylene copolymer (EPC) has attracted great attention due to its transparency and excellent mechanical and thermal properties [ 26 , 27 ]. To the authors’ best knowledge, there has been no report on the influence of SiO 2 on the physical performance of the EPC matrix, and only a few examples of research on the improvement of the nanocomposites based on EPC [ 28 , 29 , 30 ]. In this study, the mechanical, morphological, and thermal properties of EPC elastomer reinforced with silica (SiO 2 ) nanoparticles have been studied.…”

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confidence: 99%

The Role of Interfacial Interactions on the Functional Properties of Ethylene–Propylene Copolymer Containing SiO2 Nanoparticles

et al. 2020

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In this paper, the mechanical properties, thermal stability, and transparency of ethylene–propylene copolymer (EPC) elastomer modified with various weight percentages (1, 3, and 5 wt.%) of SiO2 nanofillers have been studied. The nanocomposites were prepared via a simple melt mixing method. The morphological results revealed that the nanofillers were uniformly dispersed in the elastomer, where a low concentration of SiO2 (1 wt.%) had been added into the elastomer. The FTIR showed that there are interfacial interactions between EPC matrix and silanol groups of SiO2 nanoparticles. Moreover, by the addition of 1 wt.% of SiO2 in the EPC, the tensile strength and elongation at break of EPC increased by about 38% and 27%, respectively. Finally, all samples were optically transparent, and the transparency of the nanocomposites reduced by increasing the content of SiO2 nanoparticles.

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