Compression molding processed superhydrophobic CB/CeO2/PVDF/CF nanocomposites with highly robustness, reusability and multifunction
Compression molding processed superhydrophobic CB/CeO2/PVDF/CF nanocomposites with highly robustness, reusability and multifunction
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DOI：
10.1016/j.colsurfa.2020.124533
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发表时间：
2020-04
期刊：
影响因子：
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通讯作者：
Binrui Wu;Jiajie Lyu;Chaoyi Peng;Jun Liu;S. Xing;D. Jiang;S. Ju;M. Tiwari
中科院分区：
文献类型：
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作者：
Binrui Wu;Jiajie Lyu;Chaoyi Peng;Jun Liu;S. Xing;D. Jiang;S. Ju;M. Tiwari
仿生超疏水处理赋予表面独特的功能，如自清洁，防水，防冰，防污等，在这里，我们介绍了一种简单的方法来制造碳纤维基超疏水纳米复合材料。所开发的材料具有高的机械化学耐久性和导电性，在许多工程领域中应该找到有前途的应用。该纳米复合材料通过模塑工艺制造，由碳纤维（CF）、聚偏氟乙烯（PVDF）、炭黑（CB）和二氧化铈（CeO 2）纳米颗粒组成，其通常用于制造用于结构用途的碳纤维增强塑料（CFRP）。CFRP纳米复合材料具有超疏水性（水接触角为<$156 °，滑动角为<$5 °）、优异的结构性能（拉伸强度为<$109 MPa，拉伸模量为<$10 GPa）和电导率（<$6.8 S/cm）。该纳米复合材料保持优异的超疏水性，即使在200个循环的砂纸磨损，24小时的强碱和/或60分钟的强酸侵蚀。此外，超疏水性和机械性能都可以恢复后，纳米复合材料被切割成碎片或研磨成粉末，通过重新成型过程。这表明了良好的可重复使用性和回收利用开发材料的明显潜力。
Bioinspired superhydrophobic treatment imparts unique features to surfaces such as self-cleaning, water-proofing, anti-icing, anti-fouling, etc. Here we introduce a simple approach to manufacture carbon fiber based superhydrophobic nanocomposite materials. The developed materials had high mechanochemical durability and electrical conductivity which should find promising applications in many engineering fields. The nanocomposites were manufactured via molding process and comprised of carbon fiber (CF), poly(vinylidene fluoride) (PVDF), carbon black (CB) and cerium dioxide (CeO2) nanoparticles, which is typically applied to fabricate carbon fiber reinforced plastics (CFRP) for structural use. The CFRP nanocomposites show a number of excellent functionalities such as superhydrophobicity (water contact angle ∼156° and sliding angle ∼5°), excellent structural properties (tensile strength ∼ 109 MPa and tensile modulus ∼ 10 GPa) and electrical conductivity (∼6.8 S/cm). The nanocomposites maintain excellent superhydrophobicity even after 200 cycles of sand paper abrasion, 24 h of strong base and/or 60 min of strong acid erosion. Additionally, both the superhydrophobicity and mechanical properties can be recovered by re-molding process after the nanocomposites were cut into pieces or ground into powders. This demonstrates good reusability and clear potential for recycling of the developed materials.