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材料工程  2013 

约束条件下天然橡胶硫化胶疲劳现象分析

DOI: 10.3969/j.issn.1001-4381.2013.07.008

Keywords: 天然橡胶,剪切疲劳,疲劳

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Abstract:

通过凝胶色谱分析、衰减全反射傅里叶红外光谱分析及气相色谱-质谱联用分析等手段,对天然橡胶硫化胶在约束条件下剪切疲劳的产物进行了研究。结果表明,在一维受压状态下,剪切疲劳过程中橡胶分子链首先主要发生力断裂现象,进而发生氧老化作用,同时疲劳过程中部分低分子量降解产物和游离态填料会向应力集中的部位迁移集聚。

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