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首页> 外文期刊>Journal of Macromolecular Science. Physics >Styrene Butadiene Rubber/Epoxidized Natural Rubber (SBR/ENR50) Nanocomposites Containing Nanoclay and Carbon Black as Fillers for Application in Tire-Tread Compounds
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Styrene Butadiene Rubber/Epoxidized Natural Rubber (SBR/ENR50) Nanocomposites Containing Nanoclay and Carbon Black as Fillers for Application in Tire-Tread Compounds

机译：含有纳米粘土和炭黑作为填料的苯乙烯丁二烯橡胶/环氧天然橡胶（SBR / ENR50）纳米复合材料，用于胎面胶

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摘要

Nanocomposite vulcunizates based on a SBR/ENR50 (50/50%wt) rubber blend containing nanoclay (5 or 10phr) with and without carbon black (CB 20phr) were prepared by melt blending in an internal mixer. The compound containing 35phr carbon black (only) was prepared as a reference sample. Microstructure of nanocomposite samples was investigated by using X-ray diffraction (XRD), melt rheo-mechanical spectroscopy (RMS), and scanning electron microscopy (SEM). The XRD patterns revealed that the distance between the clay layers were increased by adding CB to the nanocomposite samples; they caused better diffusion of chains between the layers and resulted in an intercalated structure. The RMS results also indicated the formation of the filler-filler networks. SEM images of fracture surfaces showed the presence of much roughness in the samples containing both nanoclay and CB compared to the other samples. The results obtained from application of the Flory-Rhener equation showed a high crosslink density for the sample with 10phr nanoclay and 20phr CB. Dynamic mechanical behavior, mechanical properties, and abrasion resistance of the nanocomposites were evaluated. The results indicated that the sample containing 10phr nanoclay and 20phr CB had an increased dynamic elastic modulus, reduced maximum loss factor (tan)(max),, and an improved tensile strength and abrasion resistance compared to the reference sample. Also, this sample showed the lowest maximum loss factor, at 50-60 degrees C, so it can be a candidate for tire-tread application.
机译：通过在内部混合器中熔融共混来制备基于SBR / ENR50（50/50％wt）橡胶共混物的纳米复合硫化橡胶，其中包含有和没有炭黑（CB 20phr）的纳米粘土（5或10phr）。制备仅含35phr炭黑的化合物作为参考样品。纳米复合材料样品的微观结构通过使用X射线衍射（XRD），熔体流变力学光谱（RMS）和扫描电子显微镜（SEM）进行了研究。 X射线衍射（XRD）图谱表明，通过在纳米复合材料中加入CB可以增加粘土层之间的距离;它们使链之间的链更好地扩散，并导致插入结构。 RMS结果还表明了填料-填料网络的形成。断裂表面的SEM图像显示，与其他样品相比，包含纳米粘土和CB的样品存在大量粗糙度。应用Flory-Rhener方程获得的结果表明，具有10phr纳米粘土和20phr CB的样品具有较高的交联密度。评估了纳米复合材料的动态力学行为，力学性能和耐磨性。结果表明，与参考样品相比，包含10phr纳米粘土和20phr CB的样品具有增加的动态弹性模量，降低的最大损耗因子（tan）（max），以及改善的拉伸强度和耐磨性。同样，该样品在50-60摄氏度时显示出最低的最大损耗因子，因此可以作为轮胎胎面应用的候选材料。

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