Polytetrafluoroethylene (PTFE) chinhu chakagadzirwa netsaona mukupera kwema1930 apo kemisitiri aiedza kugadzira mhando nyowani yeperfluorethylene-based refrigerant.Panzvimbo pekuwana chlorofluorocarbon, musayendisiti akashamisika kuona kuti perfluorethylene yakashandiswa mukuita iyi yakabata nesimbi yemukati mumudziyo wayo uye yakaumbwa pasi pekumanikidzwa.
Tensile Properties:Kushungurudzika kwekupwanya uye kuputsa kushungurudza kunoshandiswa zvakanyanya kune zvinangwa zvekutonga kwemhando, asi huwandu husingagutsikane nekuda kwezvinangwa zvekugadzira nekuda kwezvikonzero zviviri: chekutanga, uye chinonyanya kukosha, PTFE haifanirwe kushandiswa pamatambudziko anopfuura egoho (nzvimbo iyo mutoro-deformation curve ine shanduko yakasiyana yemateru) uye chechipiri, poindi yekutyoka inotsamira pachimiro chemuenzaniso uye naizvozvo haibatsiri kufanotaura maitiro mukuita.
Iyo tensile load-extension curves inowanikwa nemienzaniso yePTFE inotsamira pacrystallinity, molecular weight, saizi, maumbirwo uye zvichida chimiro chezvikamu zvepakutanga uye kuoma kwezvikanganiso zvakasara mushure mekugadzirwa.Uyezve ivo vanotsamira, sezvakangoita ne thermoplastics, patembiricha yekushisa uye chiyero chekumanikidza.Nekuda kwezvinetswa izvi data iri pano inogona kungoratidza maitiro akajairwa.Izvo zvakajairika maitiro ekuita mukukakavadzana kwePTFE sebasa rekushisa.Aya ndiwo akajairwa macurves kubva panobva goho kushushikana, kunyangwe zvishoma chaizvo kupfuura zvinogoneka kune akawanda mamwe mapurasitiki zvinhu.
High Voltage Kushandisa kwePTFE:Nezve high voltage applications zvave zvichizivikanwa kwenguva yakareba kuti pamberi pekubuda kwepasi kutadza kunoitika nekukukurwa, sezvo PTFE iri chinhu chisingatarisire.Parr naScarisbrick vakafananidza maitiro emhando dzakasiyana dzepolymeric insulators neIEE yekutevera bvunzo vachishandisa electrolyte, uye neASTM guruva-fog bvunzo (D21 32-62T).Vakaona kuti PTFE yaiva imwe yekirasi yekukukurwa kwakaratidza hupenyu hurefu, kureva > maawa e1000 mumuedzo weguruva-fog.Saka PTFE ine hunhu hunobatsira hwepamusoro hwekushandisa mukushandisa kwekunze.
Kune yakawanda insulation yemhando yepamusoro yekugadzira inodiwa kuitira kugadzira zvimiro zvine yakaderera mwero weporosity uye yemukati voiding inodiwa neakakwira voltage application.Miedzo kuburikidza nemagetsi ekuburitsa ma detectors anogona kuitwa kuti ave nechokwadi chekusununguka kubva kune zvinokuvadza zvinobuda zvinogona kuitika mu voids.Neimwe nzira zvinokwanisika kudzikisira zvinobuda nekuisa iyo PTFE ine dielectric zvinwiwa kana neine high pressure gasi kuitira kuti izadze, zvishoma zvishoma, chero mavhodhi mupolymer.Nekuda kweizvozvo, kukosha kwesimba re dielectric rinowanikwa kubva mukuyedzwa kwakaitwa muoiri rinogona kukwirira zvinorasisa kune PTFE yakagadzirwa zvisina kunaka nekuda kwekupinzwa kwechero voids iripo neoiri.
Nguva yekutumira: Nov-24-2019