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真强必胜: 金币+1, 谢谢 2013-12-16 18:03:04
zb6824785: 金币+20, 翻译EPI+1, ★★★★★最佳答案 2013-12-18 11:42:10

Studies of the impact of carbon black varieties to properties of NR / trans 1,4 - polyisoprene (TPI) alloy rubber showed that with the increasing size of carbon black particle , NR / TPI alloy rubber scorch time prolonged and the degree of crosslinking declined . N330 of NR / TPI alloy rubber filled with carbon black
has better overall physical properties. With the increasing of carbon black particle size,The loss modulus of the NR / TPI alloy rubber decreased .As the specific surface area of carbon black became larger and temperatures below 0 ℃,the loss factor value (tan δ) of NR / TPI alloy rubber decreased. When the temperature is higher than 0 ℃, NR / TPI alloy rubber (tan δ) value increased. NR / TPI alloy rubber filled with carbon black N990 has a lower dynamic heat build-up.With the specific surface area of carbon black decreased, the interaction between the carbon black and the rubber and aggregates weakened.

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