导电纤维对防静电滤纸结构和性能的影响
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摘要
选择了较有代表性的两种导电纤维分别与玻璃纤维配抄过滤纸,探讨导电纤维对过滤纸的结构、防静电性能及过滤性能的影响。实验结果表明:在玻璃纤维滤纸中,配入8%碳纤维时可实现过滤纸的防静电性能,所抄造的过滤纸的表面电阻率为6.67×10~7 Ω、体积电阻率3.24×10~7Ω·m;过滤纸中的不锈钢纤维含量为35%时,表面电阻率为4.20×10~7 Ω、体积电阻率8.02×10~6 Ω·m,即可实现防静电性能。同时结果还表明,随着碳纤维配比的增加,所抄滤纸被赋予了防静电新功能的同时,其整体的结构和空气过滤性能基本保持不变;而随着不锈钢纤维配比的增加,所抄过滤纸的厚度逐渐下降,孔径增大,过滤阻力和过滤效率逐渐减小。
Two representative conductive fibers were selected to be matched with glass fiber to make filter paper, and the influence of conductive fiber on the structure, antistatic property and filtration performance of filter paper were discussed. The results show that the anti-static properties of the filter paper can be achieved when 8% carbon fiber is added to the glass fiber filter paper, the surface resistivity of the filter paper is 6.67×10~7 Ω and the volume resistivity is 3.24×10~7 Ω·m. When the content of the stainless steel fiber is 35%, the surface resistivity is 4.20×10~7 Ω, and the volume resistivity is 8.02×10~6 Ω·m, so that the antistatic property can be achieved. At the same time, the results also show that with the increase of carbon fiber ratio, the changes of structure and air filtration performance of the filter paper are not obvious; and as the ratio of stainless steel fiber increases, the thickness of the filter paper gradually decreases, the pore size increases, and the filtration resistance and filtration efficiency are gradually reduced.
Two representative conductive fibers were selected to be matched with glass fiber to make filter paper, and the influence of conductive fiber on the structure, antistatic property and filtration performance of filter paper were discussed. The results show that the anti-static properties of the filter paper can be achieved when 8% carbon fiber is added to the glass fiber filter paper, the surface resistivity of the filter paper is 6.67×10~7 Ω and the volume resistivity is 3.24×10~7 Ω·m. When the content of the stainless steel fiber is 35%, the surface resistivity is 4.20×10~7 Ω, and the volume resistivity is 8.02×10~6 Ω·m, so that the antistatic property can be achieved. At the same time, the results also show that with the increase of carbon fiber ratio, the changes of structure and air filtration performance of the filter paper are not obvious; and as the ratio of stainless steel fiber increases, the thickness of the filter paper gradually decreases, the pore size increases, and the filtration resistance and filtration efficiency are gradually reduced.
引文
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[3] SASAKI A,UCHIYAMA S,KAWASAKI M,et al.Varnish formation in the gas turbine oil systems[J].Journal of Astm International,2008,5(2):101419-101430.DOI:10.1520/JAI101419
[4] PHAIR B ,BENSCH L ,DUCHOWSKI J ,et al.Overcoming the electrostatic discharge in hydraulic,lubricating and fuel-filtration applications by incorporating novel synthetic filter media[J].A S L E Transactions,2009,48(3):343-351.DOI:10.1080/05698190591002195
[5] GB 12158-2006,防止静电事故通用导则[S].
[6] 倪广菊,张毅.不锈钢纤维性能及在纺织工业中的应用[J].中国纤检,2005(2):46-47.DOI:10.3969/j.issn.1671-4466.2005.02.018
[7] 钟林新,张美云,陈均志,等.碳纤维导电纸导电性能影响因素的研究[J].中国造纸,2008,27(4):1-4.DOI:10.3969/j.issn.0254-508X.2008.04.001
[8] 董艳晖,张美云,钟林新.炭黑/碳纤维复合导电纸性能的研究[J].造纸科学与技术,2008,27(5).DOI:10.3969/j.issn.1671-4571.2008.05.004
[9] ZHANG Z Q,YE Y H.Research on the anti-static and anti-radiation properties of fabrics containing stainless steel microfilament[J].Advanced Materials Research,2009,79-82:1667-1670.DOI:10.4028/www.scientific.net/amr.79-82.1667
[10] HSU W Y,HOLTJE W G,BARKLEY J R.Percolation phenomena in polymer/carbon composites[J].Journal of Materials Science Letters,1988,7(5):459-462.DOI:10.1007/BF01730688