云母粒径对芳纶云母纸基绝缘材料性能的影响
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摘要
以两种不同产地云母为原料,分别对其粒径、形貌、化学结构、结晶性能、热稳定性等表征分析,并制备出芳纶云母纸,研究云母粒径对纸张力学性能及绝缘性能的影响.结果表明,不同产地云母原料及其粒径对芳纶云母纸的性能具有较大影响,云母鳞片物相较纯,结晶度高,径厚比较大,剥片完整,有利于提高芳纶云母纸力学性能及绝缘性能,而不同粒径云母粉相较于云母鳞片来说其纯度较低,剥片程度低,碎片化严重,会降低芳纶云母纸性能.此外,随着粒径的降低,云母层片状结构受破坏进而产生细碎化,块状细颗粒增多,填充在纤维间阻碍芳纶纤维间的结合,导致芳纶云母纸力学性能及绝缘性能的下降.
The particle size,morphology,chemical structure,crystallization property and thermal stability of mica from two different producing areas were characterized and analyzed respectively.The aramid mica paper was then prepared by using them,and the effect of mica particle size on the mechanical and dielectric properties of the paper were studied.The results show that mica raw materials and their particle size in different producing areas have a great influence on the performance of aramid mica paper,The scale of mica is relatively pure,with high crystallinity,larger diameter and thickness,and complete shedding,which is helpful to improve the mechanical and dielectric properties of aramid mica paper,while compared with the scales of mica,different particle sizes of mica powder have lower purity,lower degree of shredding and serious fragmentation,which will reduce the properties of aramid mica paper.In addition,with the decrease of the particle size,the mica sheet structure is damaged and further fragmentation occurs.The massive fine particles increase,which impedes the binding between the fibers and impedes the bonding between the aramid fibers,resulting in a decrease in mechanical dielectric properties of the aramid mica paper.
The particle size,morphology,chemical structure,crystallization property and thermal stability of mica from two different producing areas were characterized and analyzed respectively.The aramid mica paper was then prepared by using them,and the effect of mica particle size on the mechanical and dielectric properties of the paper were studied.The results show that mica raw materials and their particle size in different producing areas have a great influence on the performance of aramid mica paper,The scale of mica is relatively pure,with high crystallinity,larger diameter and thickness,and complete shedding,which is helpful to improve the mechanical and dielectric properties of aramid mica paper,while compared with the scales of mica,different particle sizes of mica powder have lower purity,lower degree of shredding and serious fragmentation,which will reduce the properties of aramid mica paper.In addition,with the decrease of the particle size,the mica sheet structure is damaged and further fragmentation occurs.The massive fine particles increase,which impedes the binding between the fibers and impedes the bonding between the aramid fibers,resulting in a decrease in mechanical dielectric properties of the aramid mica paper.
引文
[1]Cui X,Zhu G,Liu W.Synthesis,characterization and enhanced properties of polyimide/mica hybrid films[J].Plastics Rubber&Composites,2016,46(1):35-41.
[2]Mo H,Wang G,Liu F,et al.The influence of the interface between mica and epoxy matrix on properties of epoxybased dielectric materials with high thermal conductivity and low dielectric loss[J].RSC Advances,2016,86(6):83 163-83 174.
[3]Wang L,Liu Y,Liu G.Hydrophobic coating of mica by piranha solution activation,silanization grafting,and copolymerization with acrylate monomers[J].Journal of Applied Polymer Science,2017,134(25):1-9.
[4]Li Y M,Deng C,Wang Y Z.A novel high-temperature-resistant polymeric material for cables and insulated wires via the ceramization of mica-based ceramifiable EVA composites[J].Composites Science&Technology,2016,132:116-122.
[5]杜钜根.云母绝缘材料的发展[J].绝缘材料通讯,1990(2):37-40.
[6]李元章.云母绝缘材料的发展及新产品开发情况[J].电工材料,2001(1):32-34.
[7]梁茂芝,张桂林.电气绝缘材料的性能与发展方向[J].电气制造,2007(8):46-47.
[8]程亮,钱玉鹏,朱瀛波.我国云母纸生产现状分析及发展建议[J].矿产保护与利用,2009(6):47-51.
[9]黄鸿.云母纸的生产工艺及应用[J].中华纸业,2004,25(11):29-31.
[10]管兆杰,黄慧洁,康骏.国内电机绝缘材料和工艺及绝缘结构现状及分析[J].电机与控制应用,2011,38(4):1-5.
[11]满宇光.大型高压发电机的绝缘材料发展概述[J].绝缘材料,2014,47(1):12-16.
[12]肖林华.电气绝缘材料耐热性能的探讨[J].价值工程,2011(31):29.
[13]张玲.芳纶纤维在阻燃织物上的应用[J].中国纤检,2008(4):47-49.
[14]Lu Z Q,Zhang M Y,Hua L,et al.Study on improvement effect of aramid fiber and PVA fiber on of mica paper strength and dielectric properties[J].Advanced Materials Research,2011,214:508-512.
[15]Zhang X W,Liu S P,Qian Y P,et al.Preparation of aramid mica composite insulation material[J].Advanced Materials Research,2011,214:16-20.
[16]张小伟,程亮,张翼,等.粒度组成对云母纸强度性能的影响[J].非金属矿,2010,33(3):55-58.
[17]张小伟.高性能复合云母纸的制造技术及增强机理的研究[D].武汉:武汉理工大学,2011.
[18]Mitsui H,Inoue Y,Seino S,et al.Improvement of rotating machinery insulation characteristics by using mica paper containing aramid fibrid[J].IEEE Transactions on Electrical Insulation,1983(6):651-656.
[19]沃西源,涂斌,夏英伟.芳纶纤维及其复合材料性能与应用研究[J].航天返回与遥感,2005,26(2):50-55.
[20]邓苗,汪灵,林金辉.川西微晶白云母的X射线粉晶衍射分析[J].矿物学报,2006,26(2):131-136.
[21]崔冬乐,郑治祥,徐光青,等.绢云母的解理断裂与成分优化[J].矿产保护与利用,2010(2):20-23.
[22]李帅.河南卢氏伟晶岩白云母的矿物学及绝缘性能研究[D].北京:中国地质大学,2012.
[2]Mo H,Wang G,Liu F,et al.The influence of the interface between mica and epoxy matrix on properties of epoxybased dielectric materials with high thermal conductivity and low dielectric loss[J].RSC Advances,2016,86(6):83 163-83 174.
[3]Wang L,Liu Y,Liu G.Hydrophobic coating of mica by piranha solution activation,silanization grafting,and copolymerization with acrylate monomers[J].Journal of Applied Polymer Science,2017,134(25):1-9.
[4]Li Y M,Deng C,Wang Y Z.A novel high-temperature-resistant polymeric material for cables and insulated wires via the ceramization of mica-based ceramifiable EVA composites[J].Composites Science&Technology,2016,132:116-122.
[5]杜钜根.云母绝缘材料的发展[J].绝缘材料通讯,1990(2):37-40.
[6]李元章.云母绝缘材料的发展及新产品开发情况[J].电工材料,2001(1):32-34.
[7]梁茂芝,张桂林.电气绝缘材料的性能与发展方向[J].电气制造,2007(8):46-47.
[8]程亮,钱玉鹏,朱瀛波.我国云母纸生产现状分析及发展建议[J].矿产保护与利用,2009(6):47-51.
[9]黄鸿.云母纸的生产工艺及应用[J].中华纸业,2004,25(11):29-31.
[10]管兆杰,黄慧洁,康骏.国内电机绝缘材料和工艺及绝缘结构现状及分析[J].电机与控制应用,2011,38(4):1-5.
[11]满宇光.大型高压发电机的绝缘材料发展概述[J].绝缘材料,2014,47(1):12-16.
[12]肖林华.电气绝缘材料耐热性能的探讨[J].价值工程,2011(31):29.
[13]张玲.芳纶纤维在阻燃织物上的应用[J].中国纤检,2008(4):47-49.
[14]Lu Z Q,Zhang M Y,Hua L,et al.Study on improvement effect of aramid fiber and PVA fiber on of mica paper strength and dielectric properties[J].Advanced Materials Research,2011,214:508-512.
[15]Zhang X W,Liu S P,Qian Y P,et al.Preparation of aramid mica composite insulation material[J].Advanced Materials Research,2011,214:16-20.
[16]张小伟,程亮,张翼,等.粒度组成对云母纸强度性能的影响[J].非金属矿,2010,33(3):55-58.
[17]张小伟.高性能复合云母纸的制造技术及增强机理的研究[D].武汉:武汉理工大学,2011.
[18]Mitsui H,Inoue Y,Seino S,et al.Improvement of rotating machinery insulation characteristics by using mica paper containing aramid fibrid[J].IEEE Transactions on Electrical Insulation,1983(6):651-656.
[19]沃西源,涂斌,夏英伟.芳纶纤维及其复合材料性能与应用研究[J].航天返回与遥感,2005,26(2):50-55.
[20]邓苗,汪灵,林金辉.川西微晶白云母的X射线粉晶衍射分析[J].矿物学报,2006,26(2):131-136.
[21]崔冬乐,郑治祥,徐光青,等.绢云母的解理断裂与成分优化[J].矿产保护与利用,2010(2):20-23.
[22]李帅.河南卢氏伟晶岩白云母的矿物学及绝缘性能研究[D].北京:中国地质大学,2012.