Effects of nano and micro reinforcements on the viscoelastic behavior and thermal stability of silicone rubber

IF 2.7 Q2 Chemistry

Chemical Data Collections Pub Date : 2025-07-30 DOI:10.1016/j.cdc.2025.101201

Ehsan kianfar , Mazin Abdulhussein Beden , Ali shiaa Dagher , Seyed Mohammad Faghih

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引用次数: 0

Abstract

Carbon fiber, polypropylene fibers, TiO₂ nanoparticles, and SiO₂ nanoparticles were added to various RTV-4125 silicone rubber matrix composites in this research. Plain RTV-4125 silicone rubber was also used as a reference. The impacts of thermal stability and viscoelastic characteristics of additives on the silicone rubber were examined using TGA analyses. The degradation rates were found to be connected to the following samples: SR, SR/TiO₂, SR/SiO₂, SR/PP, and SR/C, in order of performance in TGA analysis, which was carried out within the temperature range of 25 to 700 °C. It was via this examination that the samples' maximum degradation temperatures (Tmax1 and Tmax2) and rates were determined. There was also measurement of the storage modulus and loss modulus. The optical and electron microscopy of the samples were studied to evaluate the morphology and structure, and Fourier Transform Infrared Spectroscopy to assess the functional groups and bonds within the structures. The findings show that adding additives to silicone rubber makes it more thermally stable, and that throughout a broad temperature range, the composite samples viscoelastic behavior is temperature independent.

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纳米和微增强剂对硅橡胶粘弹性和热稳定性的影响

在RTV-4125硅橡胶基复合材料中分别添加碳纤维、聚丙烯纤维、TiO2纳米粒子和SiO2纳米粒子。以普通RTV-4125硅橡胶为参考材料。采用热重分析方法考察了添加剂对硅橡胶热稳定性和粘弹性的影响。在25 ~ 700℃的温度范围内，降解速率依次与以下样品有关：SR、SR/TiO2、SR/SiO2、SR/PP和SR/C。通过这种检测，确定了样品的最大降解温度（Tmax1和Tmax2）和速率。还测量了存储模量和损耗模量。通过光学显微镜和电子显微镜对样品的形貌和结构进行了评价，并用傅里叶变换红外光谱对结构中的官能团和键进行了评价。研究结果表明，在硅橡胶中添加添加剂使其更热稳定，并且在很宽的温度范围内，复合样品的粘弹性行为与温度无关。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chemical Data Collections Chemistry-Chemistry (all)

CiteScore

6.10

自引率

0.00%

发文量

169

审稿时长

24 days

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