Rheological Properties of Slurry of Foam Cushion Packaging Based on Fiber and Starch

Abstract

The rheological behavior of slurry of foam cushion packaging based on fiber and starch was analyzed using digital viscosity meter. Meanwhile the response relationship of viscosity to time, shear rate to shear stress, and viscosity to temperature were also measured. The results showed that the slurry is a kind of non-newtonian fluid with the character of shear thinning. With the increasing of shear rate, apparent viscosity of system keeps in decreasing till the steady state finally. With temperature rising, plastic viscosity and yield strength of slurry will be smaller susceptibly. At last, Casson-Model was chose for the matching of plastic viscosity and yield strength.

Warpage of injection-molded automotive B pillar trim fabricated with ramie fiber-reinforced polypropylene composites

“…This is because the melt temperature will vary with the fiber addition. 24 Packing pressure in Table 2 was given by the percentage of the default value of injection pressure.…”