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首页> 外文期刊>Journal of Applied Polymer Science >Effect of Different Nanoparticles on Thermal, Mechanical and Dynamic Mechanical Properties of Hydrogenated Nitrile Butadiene Rubber Nanocomposites
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Effect of Different Nanoparticles on Thermal, Mechanical and Dynamic Mechanical Properties of Hydrogenated Nitrile Butadiene Rubber Nanocomposites

机译：不同纳米颗粒对氢化丁腈橡胶纳米复合材料热力学和动态力学性能的影响

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摘要

Organically modified and unmodified montmorillonite clays (Cloisite NA, Cloisite 30B and Cloisite 15A), sepiolite (Pangel B20) and nanosilica (Aerosil 300) were incorporated into hydrogenated nitrile rubber (HNBR) matrix by solution process in order to study the effect of these nanofillers on thermal, mechanical and dynamic mechanical properties of HNBR. It was found that on addition of only 4 phr of nanofiller to neat HNBR, the temperature at which maximum degradation took place (T-max) increased by 4 to 16 degrees C, while the modulus at 100% elongation and the tensile strength were enhanced by almost 40-60% and 100-300% respectively, depending upon nature of the nanofiller. It was further observed that T-max was the highest in the case of nanosilica-based nanocomposite with 4 phr of filler loading. The increment of storage modulus was highest for sepiolite-HNBR and Cloisite 30B-HNBR nanocomposites at 25 degrees C, while the modulus at 100% elongation was found maximum for sepiolite-HNBR nanocomposite at the same loading. A similar trend was observed in the case of another grade of HNBR having similar ACN content, but different diene level. The results were explained by x-ray diffraction, transmission electron microscopy, and atomic force microscopy studies. The above results were further explained with the help of thermodynamics. Effect of different filler loadings (2, 4, 6, 8, and 16 phr) on the properties of HNBR nanocomposites was further investigated. Both thermal as well as mechanical properties were found to be highest at 8 phr of filler loading.
机译：通过溶液法将有机改性和未改性的蒙脱土（Cloisite NA，Cloisite 30B和Cloisite 15A），海泡石（Pangel B20）和纳米二氧化硅（Aerosil 300）掺入氢化丁腈橡胶（HNBR）基质中，以研究这些纳米填料的作用丁腈橡胶的热，机械和动态力学性能发现仅向纯HNBR中添加4 phr纳米填料，发生最大降解的温度（T-max）升高4至16摄氏度，而100％伸长率下的模量和拉伸强度得到提高取决于纳米填料的性质，分别分别降低了约40-60％和100-300％。进一步观察到，在填充量为4phr的基于纳米二氧化硅的纳米复合材料的情况下，T-max最高。海泡石-HNBR和Cloisite 30B-HNBR纳米复合材料的储能模量增量在25摄氏度时最高，而海泡石-HNBR纳米复合材料在相同载荷下的100％伸长率模量最大。在另一种HNBR具有相似的ACN含量但二烯含量不同的情况下，观察到了类似的趋势。通过X射线衍射，透射电子显微镜和原子力显微镜研究来解释结果。借助热力学进一步解释了以上结果。进一步研究了不同填充量（2、4、6、8和16 phr）对HNBR纳米复合材料性能的影响。发现在8 phr的填料载荷下，热性能和机械性能均最高。

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