Dynamic Viscoelasticity of Poly(ether Ester) Containing Zinc

Jing Guo; Cheng Nv Hu; Wen Fei Huang

doi:10.4028/www.scientific.net/AMR.197-198.1263

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Dynamic Viscoelasticity of Poly(ether Ester) Containing Zinc

Abstract:

Hexanedioic acid, PEG6000 and zinc oxide (ZnO) was chosen as raw materials,and tetrabutyl titanate as catalyst to synthesize the poly(ether ester) containing zinc (PEEM). PEEM and Diphenyl-methane-diisocyanate (MDI) as chain extender was added into polycaprolactam whose molecular weight is about 4000 for synthesizing poly (ether ester amide) containing zinc (PEEAM). The rheological behavior of PEEAM was investigated by an advanced rheometric expansion system (ARES). Dynamic rheometer was used to measure the structures and properties of PEEAM. The dynamic rheological test indicated that the complex modulus (G*), the dynamic storage modulus (G”) and loss modulus (G’) of the PEEAM increase with the frequency (ω) increasing; the complex viscosity (η*) decreases linearly with the ω increasing, and decreases slightly with the temperature increasing, which indicates obvious flow behavior of pseudoplastic fluid. The Cole-Cole curves are convex, in the low frequency zone, the real number viscosity at 260°C is smaller than the real number viscosity at 230°C. The loss tangent (tan δ) presents a miximum with the increase of ω.