基于MWCNTs/PA复合材料铜表面处理的传热性能
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摘要
从换热器防腐和强化传热的角度出发,对铜板表面进行不同的涂膜处理:聚丙烯酸酯(PA)单双面涂膜、MWCNTs/PA复合材料单双面涂膜和无涂层铜板。通过对流换热实验,研究不同处理条件下的传热系数。结果表明,经PA处理过后的铜板传热系数明显降低。与无涂层铜板相比,单、双面PA处理的铜板传热系数分别下降21.91%和40.00%。经MWCNTs/PA复合材料处理过后的铜板传热系数得到了提高。与无涂层铜板相比,单、双面MWCNTs/PA处理的铜板的传热系数分别提高了16.74%、27.49%。
Different coating treatments were carried out on the surface of copper plate from the point of view of corrosion and heat transfer of heat exchanger: polyacrylate(PA) single-sided and double-sided coating, MWCNTs/PA composite single-sided and double-sided coating, and noncoating copper plate. The heat transfer coefficient under different treatment conditions was studied by convective heat transfer experiment. The results show that the heat transfer coefficient of the copper plate is reduced by 21.91% and 40.00%, respectively, compared with the noncoating copper plate. The heat transfer coefficient of the copper plate treated with MWCNTs/PA composite material is improved, and the heat transfer coefficient of the copper plate treated with single and double sided MWCNTs/PA is improved by 16.74% and 27.49% respectively, compared with the noncoating copper plate.
Different coating treatments were carried out on the surface of copper plate from the point of view of corrosion and heat transfer of heat exchanger: polyacrylate(PA) single-sided and double-sided coating, MWCNTs/PA composite single-sided and double-sided coating, and noncoating copper plate. The heat transfer coefficient under different treatment conditions was studied by convective heat transfer experiment. The results show that the heat transfer coefficient of the copper plate is reduced by 21.91% and 40.00%, respectively, compared with the noncoating copper plate. The heat transfer coefficient of the copper plate treated with MWCNTs/PA composite material is improved, and the heat transfer coefficient of the copper plate treated with single and double sided MWCNTs/PA is improved by 16.74% and 27.49% respectively, compared with the noncoating copper plate.
引文
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[30]李宝增,焦学锋.试差法计算流速对传热的影响[J].新疆师范大学学报(自然科学版),2001,(3):49-52.LI B Z,JIAO X F.Calculate study of the effects of velocity of flow heat-transfer by process of test error[J].Journal of Xinjiang Normal University(Natural Science Edition),2001,(3):49-52.
[2]刘艳辉,阎志山,郝军.低温多效海水淡化铝合金传热管防腐涂层性能评价[J].现代涂料与涂装,2012,15(4):21-23.LIU Y H,YAN Z S,HAO J.The performance evaluation of anticorrosion coating for low-temperature multi-effect desalination aluminum alloy thermal conductive tube[J].Modern Paint&Finishing,2012,15(4):21-23.
[3]叶昌明,陈永林.热传导聚合物基复合材料的研究进展[J].化工新型材料,2003,31(2):45-48.YE C M,CHEN Y L.Research progress of composite of polymer of thermal conductivity[J].New Chemical Materials,2003,31(2):45-48.
[4]RUSU M,SOFIAN N,RUSU D.Mechanical and thermal properties of zinc powder filled high density polyethylene composites[J].Journal of Applied Polymer Science,2001,20:409-417.
[5]汪倩,高伟,谢择民,等.高导热室温硫化硅橡胶和硅脂[J].有机硅材料,2000,14(1):5-7.WANG Q,GAO W,XIE Z M,et al.High thermal conductive RTV silicone rubber and grease[J].Silicone Material,2000,14(1):5-7.
[6]XU Y S,CHUNG D L.Increasing the thermal conductivity of boron nitride and aluminum nitride particle epoxy-matrix composites by particle surface treatments[J].Composite Interface,2000,7(4):243-256.
[7]NATHANIEL C,HASSAN M,VIJAYA K,et al.Fabrication and mechanical characterization of carbon/Si C-epoxy nanocomposites[J].Composites Structures,2005,(67):115-124.
[8]赵冬梅,李振伟,刘领弟,等.石墨烯/碳纳米管复合材料的制备及应用进展[J].化学学报,2014,72(2):185-200.ZHAO D M,LI Z W,LIU L D,et al.Progress of preparation and application of graphene/carbon nanotube composites materials[J].Acta Chimica Sinica,2014,72(2):185-200.
[9]成会明.纳米碳管制备、结构、物性及应用[M].北京:化学工业出版社,2002:1-32.CHENG H M.Preparation,Structure,Properties and Application of Carbon Nanotubes[M].Beijing:Chemical Industry Press,2002:1-32.
[10]肖杰,顾轶卓,李敏,等.多壁碳纳米管改性环氧树脂胶黏剂实验研究[J].复合材料学报,2011,28(3):20-26.XIAO J,GU Y Z,LI M,et al.Experimental study on epoxy resin adhesive modified by multi-walled nanotubes[J].Acta Materiae Compositae Sinica,2011,28(3):20-26.
[11]ZHOU H,ZHANG S M,YANG M S.The effect of heat transfer passages on the effective thermal conductivity of high filler loading composite materials[J].Composites Science and Technology,2007,67(6):1035-1040.
[12]ZHANG H,YAN L,JIN H,et al.Thermal conductive composite prepared by carbon coated aluminum nanoparticles filled silicone rubber[J].Advanced Materials Reasearch,2011,150/151:464-469.
[13]WOLFGANG B,JOSEF Z,KOVACS.A review and analysis of electrical percolation in carbon nanotube polymer composites[J].Composites Science and Technology,2009,(69):1486-1498.
[14]DAI X M,HUANG X Y,YANG F H,et al.Enhanced nucleate boiling on horizontal hydrophobic-hydrophilic carbon nanotube coatings[J].Applied Physics Letters,2013,102(16):161605(5).
[15]高珍珍,佟浩,陈建慧,等.聚苯胺共价接枝碳纳米管复合材料的制备及其超电容性能的研究[J].化学学报,2014,72(11):1175-1181.GAO Z Z.TONG H,CHEN J H,et al.Preparation and supercapacitive performance of polyaniline covalently grafted carbon nanotubes composites material[J].Acta Chimica Sinica,2014,72(11):1175-1181.
[16]黄剑坤,刘会娥,黄扬帆,等.多壁碳纳米管/二氧化硅纳米复合材料的制备及其吸油性能[J].化工学报,2016,67(10):4485-4492.HUANG J K,LIU H E,HUANG Y F,et al.Facile synthesis of MWCNT/Si O2 nano-composites as high-performance oil adsorbents[J].CIESC Journal,2016,67(10):4485-4492.
[17]史菁元,王文一,王金龙,等.聚砜/改性碳纳米管复合膜的制备及亲水性能[J].化工学报,2016,67(2):654-660.SHI J Y,WANG W Y,WANG J L,et al.Fabrication and hydrophilic properties of polysulfone/modified multiwalled carbon nanotube composite membranes[J].CIESC Journal,2016,67(2):654-660.
[18]褚道葆,陈忠平,吴何珍,等.碳纳米管/纳米Ti O2-聚苯胺复合膜电极的制备及电化学性能[J].化工学报,2007,58(6):1568-1574.CHU D B,CHEN Z P,WU H Z,et al.Preparation and electrochemical properties of carbon nanotube/nanocrystalline Ti O2-polyaniline complex film electrode[J].Journal of Chemical Industry and Engineering(China),2007,58(6):1568-1574.
[19]董晓娜,廖孝光,游胜勇,等.多壁碳纳米管/硅树脂复合材料的导热性能研究[J].热固性树脂,2017,32(2):8-11.DONG X N,LIAO X G,YOU S Y,et al.Study on thermal conductivity of multiwall carbon nanotubes/silicone composites[J].Thermosetting Resin,2017,32(2):8-11.
[20]林聪妹,曾贵玉,刘佳辉,等.含氟聚合物/多壁碳纳米管复合材料的导热性能[J].含能材料,2016,(1):96-100.LIN C M,ZENG G Y,LIU J H,et al.Thermal conduction property of fluoropolymer/multi-walled carbon nanotubes composites[J].Chinese Journal of Energetic Materials,2016,(1):96-100.
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[22]韩朝阳.有机硅改性丙烯酸酯乳液聚合研究[D].西安:西北工业大学,2003.HAN C Y.Study on emulsion polymerization of organo-silicon modified acrylate[D].Xi’an:Northwestern Polytechnical University,2003.
[23]裴世红,李燕,靳晓丽,等.核壳型改性丙烯酸酯乳液研究进展[J].现代化工,2013,33(3):25-28.PEI S H,LI Y,JIN X L,et al.Research progress of core-shell type acrylate emulsion[J].Modern Chemical Industry,2013,33(3):25-28.
[24]宋晓丽,陈莹,许玉芝,等.交联剂含量对核壳型聚丙烯酸酯乳液及胶膜性能的影响[J].工程塑料应用,2014,42(3):5-8.SONG X L,CHEN Y,XU Y Z,et al.Effects of cross-linking agent cotent on core-shell polyacrylate emulsion and film[J].Engineering Plastics Application,2014,42(3):5-8.
[25]宋晓丽,程增会,陈莹,等.种子用量对核壳型聚丙烯酸酯乳液的影响[J].化工新型材料,2014,42(3):140-146.SONG X L,CHENG Z H,CHEN Y,et al.Effects of seed dosage on polyacrylate emulsion with core-shell structure[J].New Chemical Materials,2014,42(3):140-146.
[26]叶琪,闫福安.丙烯酸酯无皂乳液在水性防腐漆上的研究及应用[J].涂料技术与文摘,2015,36(9):22-25.YE Q,YAN F A.Study on application of emulsifier-free acrylic emulsion in waterborne anticorrosive coatings[J].Coating Technology&Abstracts,2015,36(9):22-25.
[27]刘俊莉,马建中,鲍艳,等.聚丙烯酸酯/纳米Ti O2复合材料的制备与性能[J].功能材料,2012,43(2):209-212.LIU J L,MA J Z,BAO Y,et al.Preparation and performance of polyacrylate/nano-Ti O2 composite[J].Journal of Functional Materials,2012,43(2):209-213.
[28]曹同玉,刘庆普,胡金生.聚合物乳液合成原理性能及应用(第二版)[M].北京:化学工业出版社,2007:480.CAO T Y,LIU Q P,HU J S.Principle Performance and Application of Polymer Emulsion Synthesis[M].2nd ed.Beijing:Chemical Industry Press,2007:480.
[29]KLINE S J,MCCLINTOCK F A.Describing experimental uncertainties in single-sample experiments[J].Mechanical Engineering,1953,7(1):3-8.
[30]李宝增,焦学锋.试差法计算流速对传热的影响[J].新疆师范大学学报(自然科学版),2001,(3):49-52.LI B Z,JIAO X F.Calculate study of the effects of velocity of flow heat-transfer by process of test error[J].Journal of Xinjiang Normal University(Natural Science Edition),2001,(3):49-52.