UNLABELLED Dairy proteins are amenable to structural modifications induced by high temperature, shear, and moisture; in particular, whey proteins can change conformation to new unfolded states. The change in protein state is a basis for creating new foods. The dairy products, nonfat dried milk (NDM), whey protein concentrate (WPC), and whey protein isolate (WPI) were modified using a twin-screw...

Micromechanic theory of fatigue crack initiation by Lin and his associates is reviewed. Intrusions and extrusions have been observed in fatigue specimens. An initial stress field favorable for the growth of extrusion or intrusion can be produced by arrays of dislocation dipoles as shown by Lin (1969). These dipoles cause an initial tensile strain giving an elongation which is called the static ...

Accepted: 12/10/2014 Abstract Extrusion is a thermodynamic process which combines several unit operations including mixing, cooking, kneading, shearing, shaping and forming. The principles of operation are similar in all types: raw materials are fed into the extruder barrel and the screw(s) then convey the food along it. Further down the barrel, smaller flights restrict the volume and increase ...

In the present study, how side-feeding of NiCF during twin-screw extrusion processing influences fiber aspect ratio and thermal, mechanical, electrical, electromagnetic properties nickel-coated carbon (NiCF)-reinforced polyamide 6 (PA6) composites was explored. For this, length distribution, thermal stability, heat deflection temperature, dynamic mechanical property, tensile, flexural, electric...

In this study unfunctionalized expanded graphite (EG) was incorporated into poly(ether ether ketone) (PEEK) using twin-screw extrusion and injection moulding to manufacture cost-effective PEEK/EG composites for mass production of high-performance antistatic materials. Direct current electrical conductivity, morphology, rheological thermal properties the were investigated. At an EG loading 5 vol...