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Study on the Properties of Multi-Extruded Recycled PE and PP

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Abstract:

This paper mainly describes the changes of properties of low density polyethylene and polypropylene after multiple processing. Melt flow index (MFI) analysis, thermal gravimetric analysis (TGA) ,differential scanning calorimeter (DSC) and mechanical properties measurements were used to characterize the thermal stabilities, processability, mechanical properties of virgin and recycled PE and PP. The results indicated that MFI of PE decreased with increasing the number of processing cycles whereas the opposite trend applies to PP. The thermal degradation temperature of the 6th extrudates decreased slightly in comparison with virgin ones. An amorphous region of recycled PE was observed by DSC. The mechanical properties of extruded materials were also affected due to the thermal mechanical degradation.

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Info:

Periodical:

Advanced Materials Research (Volume 1003)

Pages:

96-99

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1003.96

Citation:

Cite this paper

Online since:

July 2014

Authors:

Lu Sun, Xiong Yan Zhao*, Zhan Ying Sun

Keywords:

Polyethylene, Polypropylene (PP), Processing History, Property

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* - Corresponding Author

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