Abstract In this study, we used a low-speed melt extrusion technique to fabricate a thermally conductive Polybutylene Succinate (PBS) composite, filled with various loading fractions of raw and surface-treated Silicon Carbide (SiC). The successful functionalization of silicon oxynitrocarbide (SiC-SiONC) on the surface of the SiC particles was confirmed via Fourier transmission infrared and X-ray electron spectroscopy. Furthermore, field-emission scanning electron microscopy images revealed that the surface treatment yielded improved interfacial adhesion between the SiC fillers and the PBS matrix which in turn contributed to the enhancement of the thermal conductivity. For the composite with 40 wt% surface-treated SiC particles, we achieved a maximum thermal conductivity of 1.05 W m−1 K−1, which is 400% higher than that of the neat PBS. The thermal conductivity measured in this study was higher than the thermal conductivity estimated from different models. Moreover, the PBS composite exhibited excellent heat dissipation performance during thermal testing.

中文翻译：

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通过低速熔融挤出制备的填充有 Si-ONC 功能化碳化硅的导热聚丁二酸丁二醇酯复合材料

摘要 在这项研究中，我们使用低速熔体挤出技术制造了一种导热聚丁二酸丁二酯 (PBS) 复合材料，填充了各种负载分数的原始和表面处理碳化硅 (SiC)。通过傅里叶透射红外和 X 射线电子能谱证实了碳氧化硅 (SiC-SiONC) 在 SiC 颗粒表面的成功功能化。此外，场发射扫描电子显微镜图像显示，表面处理提高了 SiC 填料和 PBS 基体之间的界面附着力，这反过来又有助于提高热导率。对于含有 40 wt% 表面处理过的 SiC 颗粒的复合材料，我们实现了 1.05 W m-1 K-1 的最大热导率，比纯 PBS 的热导率高 400%。本研究中测量的热导率高于从不同模型估计的热导率。此外，PBS复合材料在热测试过程中表现出优异的散热性能。