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炭黑N660用量对溴化丁基橡胶动态力学性能的影响

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  • Key Words:溴化丁基橡胶;;炭黑;;橡胶加工分析仪;;储能模量;;损耗因子;;物理机械性能

  • Abstract:用橡胶加工分析仪(RPA)等研究了炭黑N 660填充量不同的溴化丁基橡胶(BIIR)的性能。结果表明,BIIR混炼胶的门尼黏度随炭黑填充量的增加而线性增大。炭黑填充量为40份(质量,下同)时填料网络明显。经过3次应变扫描发现,炭黑填充量为30份时BIIR混炼胶开始出现填料网络,且在RPA应变扫描时应变大于10%后填料网络几乎被完全破坏;损耗因子随炭黑填充量的增加而增大,应变依赖性增强。随RPA应变扫描温度的升高,BIIR混炼胶的储能模量下降,对应变的依赖性减弱,损耗因子增大。填充40份炭黑的BIIR硫化胶具有较高的拉伸强度和扯断伸长率。

  • Volume:v.40

  • Issue:01

  • Translation or Not:no

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