2000 Volume 28 Issue 4 Pages 177-182
PVC has fine mechanical properties, but it also shows poor impact strength in low temperature region. We have succeeded in designing new PVC materials grafted to acrylic rubber particles aiming at strengthening surface bonding, dispersing particle homogeneously and achieving high speed elastic deformation of the particles on the basis of the Craze theory. The acrylic graft PVC gives high impact energy absorption. We have discovered the correlation among the surface of molding products and flow properties of melting resin, relaxation modulus, shear stress on the die wall, adhesion and slip-stick behavior, and consequently stabilized processing.
