Preparation and properties of conductive Ni coated carbon fibers/rubber films
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摘要: 采用喷涂法制备了镍包碳纤维（CF@Ni）填充型柔性导电橡胶薄膜，探究了球形Ni粉颗粒对导电橡胶流动性及导电性的影响，研究了导电CF@Ni/橡胶薄膜的抗折叠性能以及薄膜与铝合金基体之间黏附强度。结果表明：以CF@Ni为主掺杂少量球形Ni的复合填料所制备的导电橡胶薄膜，电阻率在10-1 Ω·cm级别；且随Ni粉增加，其电阻率不发生显著变化，但液态导电CF@Ni/橡胶流动性明显提高；喷涂获得的薄膜在0.2 MPa压力经100次折叠周期后，其导电性无明显下降；喷涂薄膜与铝合金基体之间的黏附强度约为0.219 MPa。所制备的导电CF@Ni/橡胶薄膜具有良好的导电性和抗折叠性能，导电橡胶薄膜中CF@Ni起主要导电作用，球形Ni粉不影响薄膜导电性，但在喷涂过程中有"润滑"作用，提高了喷涂效率。Abstract: Conductive rubber films filled with Ni coated carbon fibers (CF@Ni) were prepared by means of spraying process. The effects of Ni powder particle on the conductivity and flowability of conductive rubber were explored. The anti-folding properties of the conductive CF@Ni/rubber film and the adhesion strength between the film and aluminum alloy substrate were studied. The research results show that the resistivity of CF@Ni/conductive film dope with a small amount of spherical Ni powder is about 10-1 Ω·cm; with the increase of Ni powder, the resistivity of film does not change significantly while the mobility increases significantly; there is no significant decrease in the conductivity of the films when they have experienced 100 fold cycles with pressure of 0.2 MPa. The adhesion strength between CF@Ni/rubber coating film and aluminum alloy substrate is about 0.22 MPa. The conductive CF@Ni/rubber films have good electrical conductivity and anti-folding properties. CF@Ni plays a leading role in the conduction process, while spherical Ni powder plays the role of ‘lubrication’, improving the efficiency of spraying.
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Keywords:
- conductive rubber film /
- Ni coated carbon fibers /
- spray /
- conductive /
- anti-floding /
- adhesion strength
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期刊类型引用(1)
1. 高沐，夏志东，陈婧晗，高园，王金淑. 拉伸应变下镍包碳纤维填充导电橡胶取向及电阻响应. 复合材料学报. 2019(12): 2756-2763 . 
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