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首页> 外文期刊>Journal of Vinyl & Additive Technology >Effect of modified single-wall carbon nanotubes on mechanical and morphological properties of thermoplastic elastomer nanocomposites based on (polyamide 6)/(acrylonitrile butadiene rubber)
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Effect of modified single-wall carbon nanotubes on mechanical and morphological properties of thermoplastic elastomer nanocomposites based on (polyamide 6)/(acrylonitrile butadiene rubber)

机译：改性单壁碳纳米管对基于（聚酰胺6）/（丙烯腈丁二烯橡胶）的热塑性弹性体纳米复合材料的力学和形态学性能的影响

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Thermoplastic elastomer nanocomposites based on acrylonitrile butadiene rubber (NBR) and polyamide 6 (PA6), with acid functionalized single-wall carbon nanotubes (SWNT), were prepared via a direct melt-mixing process in an internal mixer. The influence of SWNT content (0, 0.5, 1, 1.5) on morphological properties of PA6/NBR with different ratios (80/20, 70/30, 60/40) were then investigated. Characterization of nanocomposites was conducted by using transmission electron microscopy, scanning electron microscopy, differential scanning calorimetry, and mechanical properties. Scanning electron microscopy micrographs proved the droplet-matrix blend morphology in which the size of NBR droplets decreased as the SWNT loading increased, suggesting dispersion of SWNT in the PA6 phase. It was further proved by transmission electron microscopy images, showing homogenous dispersion of SWNT in the PA6 phase. Differential scanning calorimetry results showed a slightly reduced percentage of crystallinity in samples containing SWNT. The mechanical properties of nanocomposites indicated an enhancement in tensile strength, modulus, and hardness on increasing SWNT content. J. VINYL ADDIT. TECHNOL., 22:336-341, 2016. (c) 2014 Society of Plastics Engineers
机译：在内部混合器中，通过直接熔融混合工艺，制备了基于丙烯腈丁二烯橡胶（NBR）和聚酰胺6（PA6）的热塑性弹性体纳米复合材料，以及酸官能化的单壁碳纳米管（SWNT）。然后研究了SWNT含量（0、0.5、1、1.5）对不同比例（80 / 20、70 / 30、60 / 40）的PA6 / NBR的形态性能的影响。纳米复合材料的表征是通过使用透射电子显微镜，扫描电子显微镜，差示扫描量热法和机械性能进行的。扫描电子显微镜显微照片证实了液滴-基质共混物形态，其中NBR液滴的尺寸随着SWNT载荷的增加而减小，表明SWNT在PA6相中的分散。通过透射电子显微镜图像进一步证实，显示SWNT在PA6相中的均匀分散。差示扫描量热法结果表明，含有SWNT的样品中结晶度的百分比略有降低。纳米复合材料的机械性能表明，随着SWNT含量的增加，拉伸强度，模量和硬度都有所提高。 J.乙烯基添加物。 TECHNOL。，22：336-341，2016.（c）2014年塑料工程师学会

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