Studies on it's Practical Application to Auto Pneumatic Tyre and Manufacture of CBR (Part 2.) On the Blend of Diene Rubber and SBR

CBR의 제조(製造) 및 이를 자동차(自動車) tyre에 활용(活用)하는데 관(關)한 연구(硏究) (제2보(第二報)) Diene rubber와 SBR와의 blend에 관(關)하여

  • Lee, Hyan-O (Department of Chemical Engineering Inha Institute of Technology) ;
  • Lee, Young-Kil (Department of Chemical Engineering Inha Institute of Technology)
  • 이현오 (인하공과대학 화학공학과) ;
  • 이영길 (인하공과대학 화학공학과)
  • Published : 1971.12.31


We have studied the blending effects of Diene 33R and styrenebutadiene rubber at various blending ratios of 100/0, 70/30, 50/50, 30/70, 0/100, and of carbon black HAF and ISAF at various compounding ratios of 55 PHR, 65 PHR, 75 PHR for tyre tread rubber. As the results, it was found that ; 1. For tyre tread rubber, when the blending ratio, Diene NF 35R/SBR 1778, indicated 30/70, the physical properties we examined were most excellent. 2. Excellent result was obtained in case of carbon black compounding ratio of 65 PHR. The compounding of ISAF made better result than that of HAF for abrasion quantity, tearing strength, and tensile strength. 3. Heat buildup obtained from compounding carbon black HAF indicated low temperature than that from compounding carbon black ISAF. As the compounding amount of carbon black increased, the heat buildup improved. And as the blending amount of Diene NF 35R decreased, the heat buildup dropped. 4. Carbon black was more efficient to SBR than to Diene Rubber. 5. It is a shortage that elongation revealed low price.