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Citation: YANG Fan-Wen, DAI Li-Zong, ZHAO Yao-Ming, GAO Qian-Fei. Morphological Structure and Dynamic Rheology of PC/UHMWPE Blends Compatibilized with HDPE-g-GMA[J]. Chinese Journal of Applied Chemistry, ;2004, 21(12): 1310-1314. shu

Morphological Structure and Dynamic Rheology of PC/UHMWPE Blends Compatibilized with HDPE-g-GMA

1.
a College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005;
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b Institute of Materials, South China University of Technology, Ministry of Education Key Laboratory of Polymer Processing Engineering, Guangzhou;
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c Post-doctor Workstation of Jinjiang, Jinjiang

Corresponding author: DAI Li-Zong,
Received Date: 28 January 2004
Available Online: 10 May 2004

Morphological structures of PC/UHMWPE blends were observed by SEM and their dynamic rheology was studied with a dynamic rheometer. The relationship between the morphological structure and the dynamic rheology behavior of the blends is discussed. The size distribution of the dispersion domains of compatibilized blends(PC content was maintained at 100 g) was uniform when the mass ratio of UHMWPE to compatibilizer HDPE-g-GMA was 1:1.5 and UHMWPE content was less than 4 g. However, the size of the dispersion domains increased when the UHMWPE content was greater than 4 g. The complex moduli of the blends decreased with the increase of shear frequency, and their tan δ first increased, then decreased. The blend containing 4 g UHMWPE and 6 g compatibilizer had the maximal modulus, uniform distribution of dispersion domains and the loss peak shifted to 2 Hz.
- polycarbonate,
- ultrahigh molecular weight polyethylene,
- blend,
- compatibilization,
- dynamic rheology
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