RheologicalProperties and Foaming Performance of PPC/Nano-SiO2 Systems

doi:10.19491/j.issn.1001-9278.2016.10.003

China Plastics ›› 2016, Vol. 30 ›› Issue (10): 14-19 .DOI: 10.19491/j.issn.1001-9278.2016.10.003

RheologicalProperties and Foaming Performance of PPC/Nano-SiO₂ Systems

Received:2016-07-11 Revised:2016-08-24 Online:2016-10-26 Published:2016-10-26

Abstract

Abstract: The compounding systems based on propylene carbonate(PPC) and silica nanoparticles (nano-SiO2) were fabricated by usinga co-rotating twin-screw extruder, and their rheological properties werecharacterized by dynamic rheometer. The batch foaming process was conducted toinvestigate the effect of nano-SiO2 content on the rheological andfoaming properties of PPC/nano-SiO2 systems. The results indicatedthat a percolated network was formed at a nano-SiO2 content of 5phr, which led to the finest cell diameter of 9.65μm, the highestcell density of 2.37×10^9cells/cm3, the narrowest distribution of cell diameter, and the mostuniform cell structure.

Key words: propylene carbonate, silicon nanoparticle, rheological behavior, foaming

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RheologicalProperties and Foaming Performance of PPC/Nano-SiO₂ Systems

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