Effect of Supercritical Carbon Dioxide on the Mechanical Properties and the Morphology of PPO/POE Blends

Abstract:

Blending PPO and POE-g-MAH assisted by SCCO2 has been investigated. The in-line rheological behavior of PPO and POE-g-MAH containing SCCO2 were studied with the slit die and self made in line rheological testing system. The effect of SCCO2 on the reduction of shear viscosity of PPO is more obvious than that of POE-g-MAH. The shear viscosity of PPO reduced 36.7% with addition 4wt% CO2. Morphology of blends was inspected by SEM. The sizes of POE-g-MAH disperse phase decreased with the contents of CO2 increasing. As a result, the impact strength of blend is improved from 43.5KJ/m2 to 100.9KJ/m2 due to introduce 4wt% SCCO2 for PPO/POE-g-MAH (85/15) blends.

• Periodical: Advanced Materials Research (Volumes 562-564)
• Pages: 19-22
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.562-564.19
• Online since: August 2012
• Authors: Chun Ling Xin, Bao Rui Yan, Ya Dong He, Fen Dong
• Keywords: Blend, Mechanical Property, Morpholoy, Polyphenylene Oxide, Supercritical Carbon Dioxide

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