Shear Thinning Behaviour Of The Low Density Polyethylene/ Thermoplastic Starch (LDPE/TPS)Blends

TPS is gelatinized polymer with high elastic behavior. It was shown that the power law exponent (n) can change over the wide range (0.19-0.92) for chemically cross-linking gels1,while it is lower for physically gels2. These properties of TPS is attributed to hydrogen bonding or the residual crystallinestructure that was not destroyed during gelatinization3,4. Therefore its elastic behaviour has very weak dependent on the shear rate or angular frequency. The aim of this study is to assess this important parameter for LDPE/TPS blend.