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材料工程  2013 

长期储存后橡胶材料湿热老化分析

DOI: 10.3969/j.issn.1001-4381.2013.07.017, PP. 87-91

Keywords: 橡胶,湿热,老化

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Abstract:

对选择典型的丁腈橡胶、氟橡胶和氟硅橡胶材料先开展1.5年储存期老化实验,再进行0,5,10,20天和60天的湿热老化实验研究。分别对选取的三种典型橡胶材料在实验前后的外观、增重率、邵氏A硬度、拉伸强度、拉断伸长率和拉断永久变形等性能的对比分析。得出结论三种典型橡胶材料中,湿热环境对储存后的丁腈橡胶影响较小;氟橡胶的吸湿量较大,但没有对材料的硬度和拉伸性能产生明显的老化影响,氟硅橡胶在储存期后就已经出现明显老化迹象,湿热环境会加快氟硅橡胶的老化过程。

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