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首页> 外文期刊>Journal of Applied Polymer Science >Interfacial interactions and properties of cellular structured polyurethane nanocomposite based on carbonaceous nano-fillers
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Interfacial interactions and properties of cellular structured polyurethane nanocomposite based on carbonaceous nano-fillers

机译：基于碳质纳米填料的细胞结构聚氨酯纳米复合材料的界面相互作用及性能

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In this article, we have studied the effect of carbonaceous nanofillers viz. fullerenol (0D), carboxylated multi-wall carbon nanotube (MWCNT, 1D), hydroxylated graphene (2D) and combination of carboxylated CNT and hydroxylated graphene as 3D in thermoplastic polyurethane on the tensile properties of the fabricated cellular structures. The concentration of nano-fillers was varied as 0.1, 1, and 5 wt%. Tensile properties of the nanocomposite cellular structures were measured as per ASTM D882 at 20 degrees C (below glass transition temperature,T-g) and 40 degrees C (aboveT(g)). The results have shown that the tensile strength was found to increase by 200%-300% and the tensile modulus was found to increase by 150%-300% for 2D and 3D nano-fillers while significantly poor results were observed for 0D. However, the test data tensile strength and modulus showed marginal increase at 20 degrees C and marginally low at 40 degrees C for 1D filler. The interfacial adhesion was calculated by using experimental tensile data and the predictive models. The interfacial adhesion parameter (B-sigma) calculated using Pukanszky equation was found significantly higher value for 2D (B-sigma 20= 195.8) and 3D (B-sigma 20= 192.0) fillers while poor adhesion was observed for 0D (B-sigma 20= -81.6) fillers. The developed cellular structured materials were also evaluated by attenuated total reflection Fourier transform IR spectra, differential scanning calorimetry, X-ray diffraction, scanning electron microscope, and transmission electron microscope.
机译：在这篇文章中，我们研究了含碳纳米填料的效果，即。富勒烯醇（0D）、羧基化多壁碳纳米管（MWCNT，1D）、羟基化石墨烯（2D）以及羧基化CNT和羟基化石墨烯作为3D在热塑性聚氨酯中的组合对所制备的多孔结构的拉伸性能的影响。纳米填料的浓度变化为0.1、1和5 wt%。纳米复合多孔结构的拉伸性能根据ASTM D882在20摄氏度（低于玻璃化转变温度T-g）和40摄氏度（高于T（g））下进行测量。结果表明，2D和3D纳米填料的拉伸强度增加了200%-300%，拉伸模量增加了150%-300%，而0D的结果明显较差。然而，试验数据表明，1D填料的抗拉强度和模量在20℃时略有增加，在40℃时略有降低。利用实验拉伸数据和预测模型计算了界面结合力。使用Pukanszky方程计算的界面粘附参数（B-sigma）发现2D（B-sigma 20=195.8）和3D（B-sigma 20=192.0）填料的值显著较高，而0D（B-sigma 20=-81.6）填料的粘附性较差。通过衰减全反射傅里叶变换红外光谱、差示扫描量热法、X射线衍射、扫描电子显微镜和透射电子显微镜对所制备的多孔结构材料进行了评价。

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