The melt rheological behaviors of the PET/E-HDP(for short of Easily Hydrolyzed and Easily Dyed Polyester) blending systems at different blending ratios were investigated by the capillary rheometer. The E-HDP is derive...The melt rheological behaviors of the PET/E-HDP(for short of Easily Hydrolyzed and Easily Dyed Polyester) blending systems at different blending ratios were investigated by the capillary rheometer. The E-HDP is derived from polyethylene terephathalate (PET) modified through copolycondensation with sulfonate moiety, (sodiosulfo) isophthalate (Na-SIP) and iso-phthalic acid(IPA). The results showed that the apparent viscosity and non-Newtonian index of the PET/E-HDP blend system had the non-linearity change with the change of the blend ratio of PET/E-HDP. The anomaly of the viscous flow activation energy change was founded as the mass fraction of E-HDP was about 40% in the blend system,suggesting the presence of reversible crosslinked structure formed by strong polar tangling points and the phase separation owing to poor compatibility between the PET and展开更多
文摘The melt rheological behaviors of the PET/E-HDP(for short of Easily Hydrolyzed and Easily Dyed Polyester) blending systems at different blending ratios were investigated by the capillary rheometer. The E-HDP is derived from polyethylene terephathalate (PET) modified through copolycondensation with sulfonate moiety, (sodiosulfo) isophthalate (Na-SIP) and iso-phthalic acid(IPA). The results showed that the apparent viscosity and non-Newtonian index of the PET/E-HDP blend system had the non-linearity change with the change of the blend ratio of PET/E-HDP. The anomaly of the viscous flow activation energy change was founded as the mass fraction of E-HDP was about 40% in the blend system,suggesting the presence of reversible crosslinked structure formed by strong polar tangling points and the phase separation owing to poor compatibility between the PET and
