Investigations of the improved performances of silicone rubber in the presence of black titanium,Polymer International

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Investigations of the improved performances of silicone rubber in the presence of black titanium
Polymer International ( IF 2.9 ) Pub Date : 2021-09-16 , DOI: 10.1002/pi.6297
Ning Zhang ₁ , Wenjun Jiang ₁

Affiliation

Silicone rubber (SR)/black titanium (BT) composites with high-temperature resistance and thermal conduction were prepared via an efficient and convenient blending method. The thermal stability and conductivity of these materials, as well as their properties were systematically investigated to determine the effects of BT. As tensile testing showed, the elongation retention rate of SR-10 described good antioxidation behavior with a value of 30% after aging at 250 °C for 360 h. Additionally, thermal stability was improved with the introduction of BT. The initial decomposition temperature and maximum degradation rate temperature increased by 200 and 23 °C, respectively, in air atmosphere. As is known, it is difficult for inorganic particles to be well dispersed in a polymeric matrix. However, as observed using scanning electron microscopy, BT displayed a good compatibility and dispersion in the SR matrix without any obvious agglomeration. Moreover, it was found that the addition of BT can further enhance the thermal conductivity of SR to 0.48 W m⁻¹ K⁻¹. © 2021 Society of Industrial Chemistry.

中文翻译：

黑钛存在下硅橡胶性能改进的研究

通过高效便捷的共混方法制备了耐高温导热的硅橡胶（SR）/黑钛（BT）复合材料。系统地研究了这些材料的热稳定性和电导率以及它们的性能，以确定 BT 的影响。拉伸试验表明，SR-10 的伸长率保持率表现出良好的抗氧化性能，在 250 °C 老化 360 小时后达到 30%。此外，随着 BT 的引入，热稳定性得到了改善。在空气气氛中，初始分解温度和最大降解速率温度分别增加了 200 和 23 ℃。众所周知，无机颗粒很难很好地分散在聚合物基质中。然而，正如使用扫描电子显微镜观察到的，BT在SR基质中表现出良好的相容性和分散性，没有任何明显的团聚现象。此外，发现添加BT可以进一步提高SR的导热系数至0.48 W m^-1 K ^-1。© 2021 工业化学学会。

更新日期：2021-09-16

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