| POLYMERS AND POLYMER MATRIX COMPOSITES |
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| Rheological Properties of Polyethylene Terephthalate Melt Containing Carbon Black in Pressure-driven Flow |
| GUO Zengge1, ZHANG Bin2, JIANG Zhaohui1, JIA Zhao1, DING Zuowei1, CHENG Bowen2, LI Xin3
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1 Lutai School of Textile and Apparel,Shandong University of Technology,Zibo 255000,China
2 State Key Laboratory of Separation Membranes and Membrane Processes,Tianjin Polytechnic University,Tianjin 300387,China
3 State Key Laboratory of Biobased Fiber Manufacturing Technology,China Textile Academy,Beijing 100025,China |
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Abstract Rheological behavior of carbon black polyethylene terephthalate (PET) melt in pressure flow field was studied by capillary rheometer and reverse pressure chamber assembly, and was compared with that of ordinary PET. The results showed that with the increase of shear rate, the shear thinning behavior of carbon black-containing PET melt was more significant than that of ordinary PET. At the same temperature and shear rate, the shear viscosity of carbon black PET increased with the increase of pressure; at the same shear rate and pressure, the shear viscosity of carbon black PET melt decreased with the increase of temperature. The contribution of pressure increasing and temperature decreasing to shear viscosity was equivalent. At the same shear rate, the viscosity-temperature dependence of carbon black PET melt increased with the increase of pressure; at the same pressure, the viscosity-temperature dependence of carbon black PET melt decreased with the increase of shear rate. With the increase of temperature, the Δη of ordinary PET and carbon black-containing PET melt was reduced, and the spinnability was improved. When the temperature was between 290 ℃ and 295 ℃, the spinnability of ordinary PET and carbon black-containing PET melt was optimal.
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Published: 03 January 2020
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| About author:: Zengge Guo, Ph.D., lecturer, Lutai school of textile and apparel, Shandong University of Technology. He received a master's degree from Tianjin University of Technology in March 2012 and a doctor's degree from Tianjin University of Technology in October 2014. Since joining Lutai school of textile and apparel of Shandong University of Technology in November 2014, the main research direction is the modification of natural macromolecule materials, the structure and properties of modified fibers. |
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2020, Vol. 34 
