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填充剂类型,热力学性能和RTV泡的老化之间的关系

Xavier M Torres¹, John R Stockdale¹, Adam Pacheco¹

¹C-CDE: Chemical Diagnostics and Engineering Group, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.

|July 30, 2025

概括

一个优化的热处理防止机械性能退化在老化的室温化 (RTV) 泡. 添加碳纳米纤维等填充剂可以增强热力学性能,提高工业应用的材料性能.

科学领域:

材料科学材料科学材料科学
聚合物化学聚合物化学

背景情况:

室温化 (RTV) 泡在压力负荷下降解,原因是不完全固化和反应性物种.
这种老化过程导致机械性能随着时间的推移而恶化.

研究的目的:

为RTV泡开发一个优化的热后固化方法,以提高长期稳定性.
研究各种填充剂对RTV泡的热力学性能的影响.

主要方法:

在压力负荷下老化的RTV泡上应用了优化的热处理.
填充剂的研究:藻土,化和碳纳米纤维 (CNF).
热力学特性 (抗拉强度,抗撕裂强度,导热性) 和质行为的分析.

主要成果:

经热处理的泡在负载下三个月后没有出现压缩,这证实了有效的固化和稳定.
填充剂显著提高了拉伸强度,撕裂强度和导热性.
碳纳米纤维 (CNFs) 是最有效的填充剂,其最佳度极限为2.5 wt.%.

结论:

拟议的热处理有效地防止了压缩,并提高了RTV泡的耐用性.
纳入填充剂,特别是CNF,可以显著提高RTV泡的热力学性能,以满足苛刻的应用.

关键词:

在PDMS中使用PDMS.碳纳米纤维的碳纳米纤维藻土是二氧化土的土壤.烟雾化的二氧化.在室温下化泡.锡催化剂的催化剂

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