In this research study, a comprehensive effort has been made to functionalize silicon carbide particles using the acidic oxidation with nitric acid to obtain homogeneous stabilized distribution of activated SiC particles within a polymer matrix, and develop functionalized silicon carbide (f-SiC) particle reinforced polyvinyl alcohol (PVA) based cross-linked composite. After fabrication of functionalized silicon carbide (f-SiC) particle reinforced polyvinyl alcohol based cross-linked composite with varying f-SiC weight percentages of PVA (0%, 1%, 2%, 3%, and 4%) were placed to various investigations. Processed samples are initially examined based by the physical tests (water absorption tests), followed by mechanical test (tensile test) and then micro-structural tests (scanning electron microscopy). Lastly, thermal tests were also concluded which involved the dynamic mechanical, differential thermal and thermo gravimetric analysis. The cross-linked polyvinyl alcohol-based composite with 2 weight % of f-SiC content is observed to be the superlative of all the compositions under this research study that was confirmed by the mechanical and micro-structural tests. This composite material shows high storage modulus with visco-elastic behavior, therefore, the material can be utilized to diminish the transmission of noise, as a shock absorber and vibration isolator.

中文翻译：

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功能化碳化硅纳米粒子作为添加剂在交联 PVA 基复合材料中的作用，用于减振应用

在这项研究中，利用硝酸酸性氧化功能化碳化硅颗粒，以获得聚合物基体中活化 SiC 颗粒的均匀稳定分布，并开发功能化碳化硅 (f-SiC) 颗粒增强聚乙烯醇（PVA）基交联复合材料。在制造功能化碳化硅 (f-SiC) 颗粒增强聚乙烯醇基交联复合材料后，将不同 f-SiC 重量百分比的 PVA（0%、1%、2%、3% 和 4%）置于各种调查。处理后的样品首先通过物理测试（吸水率测试）进行检查，然后是机械测试（拉伸测试），然后是微观结构测试（扫描电子显微镜）。最后，热测试也包括动态机械、差热和热重分析。观察到 f-SiC 含量为 2 重量％的交联聚乙烯醇基复合材料是本研究中所有组合物的最高级，这已通过机械和微观结构测试得到证实。这种复合材料显示出具有粘弹性行为的高储能模量，因此，该材料可用作减振器和隔振器来减少噪音的传输。观察到 f-SiC 含量为 2 重量％的交联聚乙烯醇基复合材料是本研究中所有组合物的最高级，这已通过机械和微观结构测试得到证实。这种复合材料显示出具有粘弹性行为的高储能模量，因此，该材料可用作减振器和隔振器来减少噪音的传输。观察到 f-SiC 含量为 2 重量％的交联聚乙烯醇基复合材料是本研究中所有组合物的最高级，这已通过机械和微观结构测试得到证实。这种复合材料显示出具有粘弹性行为的高储能模量，因此，该材料可用作减振器和隔振器来减少噪音的传输。