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The ethylene-vinyl alcohol copolymerEVOH-nano-SiO2 composites were prepared by melt blending with different processing technologiesmelt blending technology and film-blowing technology and blown to film. The structure of the EVOH-nano-SiO2 composites was analyzed through polarizing microscope POM and differential scanning calorimetry DSC. The mechanical properties, barrier properties and transparency of the composites were characterized. The results showed that: different film-blowing processes can change the ordered structure and crystalline form of the EVOH-SiO2 nanocomposites film, different blending technologies have a great effect on the structure of the composites and different processing technologies have a great effect on the properties of EVOH and EVOH-nano-SiO2 nano-composites film.

KEYWORDS

EVOH; nano-SiO2; processing technology; barrier properties

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Autor: Yiwu Liu, Yuejun Liu, Shanshan Wei

Fuente: http://www.scirp.org/



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