Surface modification strategies for multicomponent polymer systems. 2. Study of the interfacial tension and morphology of linear low-density polyethylene-poly(vinyl chloride) blends

摘要

The breaking thread method was used to measure the interfacial tension between linear low- density polyethylene and poly(vinyl chloride) (PVC). The thermal sensitivity of PVC renders this type of study extremely difficult. By choosing a low molecular weight of the PVC that showed Newtonian plateau behavior at low shear rates, using an appropriate temperature, and Substantially reducing the thread thickness to accelerate the experiment, the breakup is Constrained to occur before severe thermal degradation.