碳纳米管/聚丙烯/聚碳酸酯导电纳米复合薄膜：制备和表征,Journal of Applied Polymer Science

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碳纳米管/聚丙烯/聚碳酸酯导电纳米复合薄膜：制备和表征
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2021-06-22 , DOI: 10.1002/app.51276
Ting-Ting Li, Xiaoyang Zhang, Yanting Wang, Fei Sun, Jiawen Xu, Ching-Wen Lou, Jia-Horng Lin

在本研究中，通过物理共混和热压方法将 PP（聚丙烯）/PC（聚碳酸酯）（1:1）和碳纳米管（CNT）复合制备了 CNT/PP/PC 导电复合薄膜。接下来，进行傅里叶变换红外光谱、热重分析、差示扫描量热法和水接触角测量，以表征 CNT/PP/PC 导电薄膜的性能。结果表明，添加CNT的PP/PC复合膜内部没有发生化学反应。含3wt%的CNT复合膜和对照膜均未在220℃内热分解。水接触角从对照膜的 88.5° 增加到含有 3 wt% CNT 的复合膜的 110.99°。这表明该薄膜具有良好的热稳定性和疏水性。得到CNT含量为3wt%时的渗流阈值，此时CNT/PP/PC复合膜的最佳导电率为5.53S/m。为了提高薄膜的拉伸性能，薄膜中加入了少量聚氨酯（TPU），TPU含量为6.7%时，最大拉伸强度为24.91 Mpa。该研究可为柔性电子器件的实际应用提供策略。

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Carbon nanotube/polypropylene/polycarbonate conductive nanocomposite films: Preparation and characterization

In this study, CNT/PP/PC conductive composite films were prepared by compounding PP (polypropylene)/PC (polycarbonate) (1:1) and carbon nanotubes (CNT) using a physical blending and hot pressing method. Next, Fourier transform infrared spectroscopy, thermogravimetric analysis, differential scanning calorimetry, and water contact angle measurement are conducted in order to characterize the properties of CNT/PP/PC conductive films. The results showed there is no chemical reaction inside the PP/PC composite film with the addition of CNT. Neither the CNT composite film containing 3 wt% nor the control film decomposed thermally within 220°C. The water contact angle increased from 88.5° for the control film to 110.99° for the composite film containing 3 wt% CNT. This indicates that the film has good thermal stability and hydrophobic properties. The percolation threshold was obtained when the content of CNT was 3 wt%, and the best conductivity of the CNT/PP/PC composite film was 5.53 S/m at this time. In order to improve the tensile properties of the film, a small amount of polyurethane (TPU) was added to the film, and the maximum tensile strength was 24.91 Mpa when the content of TPU was 6.7%. This study can provide a strategy for the practical application of flexible electronic devices.

更新日期：2021-08-12

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