Change in Surface Microstructure and Properties of PTFE after Solar Radiation and its Mechanism-中国期刊网

摘要 Aseriesofsolarradiationtestsforthepolytetrafluoroethylene(PTFE)bulkandfilmsampleswerecarriedoutusingQ-SUNXE-3-HSCtypeSolarRadiationSimulator,withthetestparametersasfollows:radiationintensityis1120W/m~2,temperatureis55℃andhumidityis70%RH.Surfacemorphology,compositionandmicrostructureofthePTFEsamplesbeforeandafterradiationtestswerecharacterizedcontrastively.EffectofsolarradiationonthetribologyandwettingpropertiesofPTFEwerealsostudiedbytribometerandcontactangletester,respectively.Theresultsshowthat,forradiatedPTFE,surfaceroughness,therelativecontentofCelement,thefrictioncoefficientsandthecontactanglewithwaterincreasedinvaryingdegrees.Inconclusion,theobviouschangeinPTFEsamplescanbemainlyattributedtobreakof(CFx)-CbondsafterbombardmentofhighenergyUVphotons,whichcausesthelossofF-richgroups,oxidation,crosslinkingandrestructuringofactiveunsaturatedgroups.

1王谦谦;钱永甫. INFLUENCES OF DIURNAL CHANGE OF SOLAR RADIATION ON SIMULATED PROPERTIES OF SUMMER MONSOON.大气科学及气象学,1997-02.
2张华;尹青;Teruyuki NAKAJIMA;Nakata Mukai MAKIKO;卢鹏;何金海. Influence of Changes in Solar Radiation on Changes of Surface Temperature in China.大气科学及气象学,2013-01.
3WANG Leidi;LU Daren;HE Qing. The Impact of Surface Properties on Downward Surface Shortwave Radiation over the Tibetan Plateau.大气科学及气象学,2015-06.
4宁亮;钱永甫. Interdecadal Change in Extreme Precipitation over South China and Its Mechanism.大气科学及气象学,2009-01.
5Yu-Quan Ma;Hong-ju Lin;Dong-dong. Microstructure evolution and thermal physical properties of CuCr alloy after high pressure treatment.金属材料,2014-03.
6LinGuo ShiheYang. The effect of surface modification on the microstructure and properties of γ—Fe2O3 nanoparticles.核技术及应用,2000-01.
7尹宏;韩志刚. THE ABSORPTION OF SOLAR RADIATION BY AEROSOL ATMOSPHERE.大气科学及气象学,1990-03.
8盛黎;刘树华;Heping LIU. Influences of Climate Change and Its Interannual Variability on Surface Energy Fluxes from 1948 to 2000.大气科学及气象学,2010-06.
9Lei Jiao;Yu-Tao Zhao;Jian-Chao Chen;Long Chen. Microstructure and properties of Al3Zr/2024Al in situ composites after forging.金属材料,2016-12.
10Zhang Zhiyuan;Zhang Lifan (The Fifth Major Student Teamand Department of Aerospace PhysiologyThe Fourth Military Medical UniversityXi’an, 710032,P.R.CHINA). CHANGE IN HEART RATE DYNAMICS AFTER AEROBIC TRAINING DETECTED BY APPROXIMATE ENTROPY AND ITS ASSOCIATION WITH ORTHOSTASIS.生物医学工程,1997-03.

Change in Surface Microstructure and Properties of PTFE after Solar Radiation and its Mechanism

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Change in Surface Microstructure and Properties of PTFE after Solar Radiation and its Mechanism

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