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Mechanical spectroscopy in carbon nanotube reinforced ABS

机译:碳纳米管增强ABS中的机械光谱

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Mechanical spectroscopy has been used to qualify possible improvements of the mechanical properties of acrylonitrile-butadiene-styrene-carbon nanotubes (ABS-CNTs) composites. The properties of ABS matrix are first investigated. Two relaxations that mark the glass transition of the polybutadiene and the styrene-acrylonitrile (SAN) phases of the polymer are identified. Composite samples with ABS matrix and CNT reinforcement were processed by blending and injection molding. The carbon nanotube additions are 3 wt%, 7 wt% and 15 wt%. The SAN glass transition evidenced by a mechanical loss peak is broadened by the presence of CNT and it is slightly shifted towards higher temperatures. Carbon nanotubes contribute to delay the modulus drop that characterizes the SAN phase glass transition.
机译:机械光谱学已被用于鉴定丙烯腈-丁二烯-苯乙烯-碳纳米管(ABS-CNT)复合材料的机械性能的可能改进。首先研究了ABS基体的性质。确定了两个标记聚丁二烯的玻璃化转变和聚合物的苯乙烯-丙烯腈(SAN)相的弛豫。具有ABS基体和CNT增强材料的复合材料样品通过混合和注塑成型加工。碳纳米管的添加量为3重量%,7重量%和15重量%。由机械损耗峰证明的SAN玻璃化转变因CNT的存在而扩大,并且向较高温度略微转移。碳纳米管有助于延缓表征SAN相玻璃化转变的模量下降。

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