Effects of Tackifying Resins on Rheological Properties of SBR
Zhu Hong (Beijing Research and Design institute of Rubber industry)
A study has been made of the effects of p-tert-butyl phenol-formaldehyde resin and ptert-octyl phenol-formaldehyde resin on the rheological and physical properties of SBR as well as on the power consumption for mixing. The result shows that by the addition of the resins the stock becomes one with reduced apparent viscosity, lowered apparent shear stress, improved flow behavior, better extrudate appearance and decreased mixing power consumption, and with the increase of the resin amount, the effect is more outstanding ; a lower resin concentration gives no adverse effect on the properties of the vulcanisate and a resin concentration over 10 phr will result in a phenomenon of serious sticking-to-mill.
【CateGory Index】： TQ333.1