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Investigation on the modification to solvent-containing two-component polyurethane coating by carbon nanotubes

机译:碳纳米管改性含溶剂双组分聚氨酯涂料的研究

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摘要

Purpose The purpose of this paper is to investigate the effects of carbon nanotubes (CNTs) on the mechanical, thermal and colour properties of solvent-containing two-component polyurethane (PU) coating. Design/methodology/approach Fourier transform infrared spectroscopy and observation of dispersion stability were used to assess the effects of acid treatment on CNTs. The CNTs and PU composite coating was synthesised by in situ polymerisation and bending polymerisation, and the mechanical, thermal and colour appearance properties of coating were characterised. Findings It was found that desirable modifications to CNTs occurred after acid treatment; thus, mainly carboxylic acid groups were introduced onto the surface of CNTs. And the acid-treated CNTs could improve the mechanical and thermal properties of PU coating, and the properties of composite coating was improved more successfully by in situ polymerisation than by blending polymerisation. Practical implications The investigation established a method to synthesise CNTs and PU composite coating. The mechanical and thermal properties of PU coating could be improved by the inclusion of CNTs. Originality/value This study established a method to synthesise CNTs and PU composite coating by in situ polymerisation and blending polymerisation; the effects of CNTs on modifying mechanical, thermal and colour properties of PU coating were investigated and compared in detail.
机译:目的本文的目的是研究碳纳米管(CNT)对含溶剂的两组分聚氨酯(PU)涂层的机械,热学和颜色性能的影响。设计/方法/方法傅里叶变换红外光谱和分散稳定性的观察被用来评估酸处理对碳纳米管的影响。通过原位聚合和弯曲聚合合成了CNTs和PU复合涂层,并表征了涂层的机械,热学和颜色外观特性。结果发现,在酸处理之后,发生了对CNT的期望的修饰;因此,主要将羧酸基引入到CNT的表面上。酸处理的碳纳米管可以改善聚氨酯涂层的机械性能和热性能,并且通过原位聚合比通过共混聚合可以更成功地改善复合涂层的性能。实际意义该研究建立了一种合成碳纳米管和聚氨酯复合涂层的方法。可以通过包含CNT来改善PU涂层的机械和热性能。独创性/价值本研究建立了一种通过原位聚合和共混聚合合成碳纳米管和聚氨酯复合涂层的方法。研究并比较了碳纳米管对改性聚氨酯涂层机械,热学和颜色性能的影响。

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