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TABLE 2.1. TYPICAL TIRE TREAD RECIPES Natural ingredient Rubber Synthetic Function Smoked sheet 100 elastomer Styrene-butadiene/oil elastomer-extender masterbatch 103.1 masterbatch cis-polybutadiene 25 ecial purpose elastomer Oil soluble sulfonic acid 2.0 5.0 processing aid Stearic acid 2.5 .0 accelerator-activator Zinc oxide 3.5 3.0 accelerator-activator Phenyl-beta-naphthy lamine 2.0 2.0 antioxidant Substituted N, N-p-pheny lene- 4.0 4.0 antiozonant Microcrystalline wax 1.0 1.0 processing aid and finish Mixed process oil 5.0 70 softener HAF carbon black reinforcing filler ISAF carbon black 65 reinforcing filler Sulfur 2.5 vulcanizing agent Substituted benzothiazole-2 sulfenamide 0.5 1.5 accelerator N-nitr osodiphenylamine 05 retarder Total weight 173.5 2204 Specific gravity 1.12 1.13 Parts per hundred parts of rubber, by weight Source: Morton, M.(ed ) Rubber Technology. 2nd ed. New York: Van Nostrand Reinhold, 1973: p 20
Source: Morton, M. (ed.) Rubber Technology. 2nd ed. New York: Van Nostrand Reinhold, 1973: p.20
Kerimid High-Temperature Thermoset Resins Kinetics: (daldn)=Exp(E/ RT)(1-a) =(1/H0)(aH/d) a=(daid )dr Freeman-Carroll Analysis E log a=log Z+ +nlo a 2.303RT Dif Ifference form △loga=△logZ+ E 2303R(7/n4log(1-c Finite Element Analysis t +uvu=-Vp+ v(oVu) Ac+uVTI-o+v(vu) +uvC-R+V(DVu) ot
