Influence of raw rubber and vulcanization system on performance of corn peeling roller
By changing the mass ratio of natural rubber(NR),cis-polybutadiene rubber(BR)and styrene-butadiene rubber(SBR),and changing the dosage of accelerator N-tert-butylbenzothiazole-2-sulphenamide(TBBS),the paper studied the variation pattern of mechanical properties,aging resistance and abrasion resistance of vulcanized rubber for corn peeling rollers.The experimental results show that when the fixed NR/BR/SBR mass ratio is 40/30/30,the mechanical properties and hot air aging performance of rubber materials are better,abrasion volume is smaller,and abrasion resistance is better.On this basis,fixed sulfur dosage of 1.75 parts,we continue to adjust the dosage of accelerator TBBS to explore the effect on the properties of vulcanized rubber.The results show that when the dosage of accelerator TBBS is 1.1 parts,the vulcanized rubber of NR/BR/SBR has excellent comprehensive performance,at the same time,abrasion resistance and hot air aging performance are the best.
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