Study on Themal and Rheological Properties of POM

Zhi Hong Guo; Zhen Xi Wen; Qing Yan Xu; Yuan Tian; Gao Qiu; Yi Min Wang

doi:10.4028/www.scientific.net/AMR.487.192

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 487Study on Themal and Rheological Properties of POM

Study on Themal and Rheological Properties of POM

Abstract:

Polyoxymethylene is a linear polymer with excellent performance due to its chemical structure and high crystallinity. The thermal and rheological properties of POM are investigated in this paper. Experimental results indicate that the melting point and decomposition temperature of POM are about 162 °C and 266 °C respectively. POM melt is a non-Newtonian fluid, the apparent viscosity gradually decreased with the increase of shear rate, showing a typical shear-thinning behavior. Non-Newtonian index increased from 0.53 to 0.61 as the melt temperature increased from 190 °C to 230 °C. The flow activation energy of POM melt is between 11.36 and 24.90 kJ/mol within the shear rate range of 90~2500s -1.

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Periodical:

Advanced Materials Research (Volume 487)

Pages:

192-197

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.487.192

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Online since:

March 2012

Authors:

Zhi Hong Guo, Zhen Xi Wen, Qing Yan Xu, Yuan Tian, Gao Qiu, Yi Min Wang

Keywords:

Flow Activation Energy, Melt Spinning, Non-Newtonian Index, POM, Rheological Property

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