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Sequential Detection of Superoxide Anion and Hydrogen Polysulfides under Hypoxic Stress via a Spectral-Response-Separated Fluorescent Probe Functioned with a Nitrobenzene Derivative

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  • Key Words:橡胶;玻璃化转变温度;低温回缩温度;低温脆性温度

  • Abstract:选用具有极性差异的天然橡胶（NR）、丁腈橡胶（NBR）为基体胶，分别添加等量的微米碳球（CMSs）、二氧化硅气凝胶（SA）、碳纳米管（CNTs）、纳米碳球（CNOs），使用差示扫描量热仪（DSC）、低温回缩试验仪、低温脆性试验机对不同种类填料填充硫化胶低温性能进行表征，3种测试仪器表征的低温性能分别是玻璃化转变温度（Tg），低温回缩10%对应温度（TR10）以及脆性温度（Tb）。结果表明，填料种类对极性胶NBR的Tg、Tb影响较大，对非极性胶NR的Tg、Tb影响较小。除SA因其独特的隔热性能影响外，其他填料填充后试样的Tg和填料与基体胶相互作用趋势相同。CMSs填充到NR和NBR基体后可改善试样的Tb。填料种类的变化对NR、NBR的TR10几乎无影响。

  • Volume:v.46;No.212

  • Issue:01

  • Translation or Not:no

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