Yintoni impahla yePFA? Uhlalutyo oluneenkcukacha kunye neemeko zesicelo
Kwishishini lemichiza nakwizicelo ezininzi ezifuna ushishino, ukhetho lwezixhobo ezifanelekileyo lubalulekile-yintoni iPFA? Lo mbuzo uhlala uvela kwiingqondo zeengcali ezifuna izinto ezichasene nokushisa okuphezulu kunye nokubola. Kweli nqaku, siza kubonelela ngesishwankathelo esicacileyo sobume kunye neepropathi zezixhobo zePFA kunye noluhlu olubanzi lweemeko zesicelo.
Yintoni iPFA?
PFA (Perfluoroalkoxy) yi-fluoropolymer eyeye-polytetrafluoroethylene (PTFE) family.PFA impahla yonyusa inkqubo yezinto ngokuzisa i-alkoxy substituents, kwaye inamandla angcono e-thermoformability kunye namandla aphezulu omatshini xa kuthelekiswa ne-PTFE.Iimpawu zekhemikhali zezinto ze-PFAPTFE zifana nezixhobo ze-PFAPTFE ezingcono, zifana nezo ze-PFAPTFE zifana nezo ze-PFAPTFE. I-PTFE, kodwa ngenxa yokusebenza kakuhle kunye nokungafihli nto, iPFA inenzuzo kwizicelo ezininzi apho kufuneka ukubumba okuchanekileyo.
IiPropati eziPhambili ze-PFA Materials
Izinto ze-PFA zisetyenziswa ngokubanzi ukuxhathisa kwabo kweekhemikhali kunye nokuzinza kwe-thermal. Apha ngezantsi zezinye zezinto eziphambili zePFA:
Ukumelana nobushushu obuphezulu: Izinto zePFA ziyakwazi ukugcina iimpawu zazo zomzimba kunye neekhemikhali kumaqondo obushushu aphezulu, ukuya kuthi ga kubushushu benkonzo obuphezulu be-260 ° C. Oku kwenza i-PFA ibe lukhetho oluhle kakhulu kwizicelo ezifuna uzinzo oluphezulu lobushushu.

Ukumelana neeKhemikhali: I-PFA ibonisa ukuxhathisa okugqwesileyo phantse kuzo zonke iikhemikhali, kubandakanya iiasidi ezomeleleyo, iziseko kunye nezinyibilikisi zendalo. Oku kuyenza idume kakhulu kwishishini lemichiza, ngakumbi kwimibhobho kunye neenqanawa ezithwele ulwelo oludlekayo kunye neegesi.

Ukungqubana okuphantsi kunye neempawu ezingabambekiyo: I-PFA ye-coefficient ephantsi yokungqubana kunye neepropathi ezingabambekiyo ziyenza ilunge kwizicelo apho kufuneka kuncitshiswe ukunxiba kunye nokuthintela ukunamathela, njengokwaleka kunye namatywina.

Ukufakwa kombane: I-PFA ineempawu ezibalaseleyo zokugquma umbane, nto leyo eyenza ukuba ibaluleke kakhulu kwizicelo kumashishini ombane kunye nombane.

Iindawo zesicelo sePFA
Ngenxa yeepropathi zayo ezizodwa, imathiriyeli yePFA isetyenziswa kakhulu kumashishini amaninzi. Le ilandelayo yeminye yeendawo eziphambili zesicelo:
Izixhobo zemichiza kunye nepetrochemical: Ngenxa yokumelana kwayo neekhemikhali okugqwesileyo, iPFA iqhele ukusetyenziswa ukwenza iilining zemibhobho, iivalvu, iimpompo kunye neenqanawa. Ezi zixhobo zifuna ukuxhathisa okuphezulu kakhulu kweekhemikhali xa uphatha ulwelo kunye neegesi ezidliwayo, kwaye izixhobo zePFA zinokundisa ngokufanelekileyo ubomi benkonzo yezixhobo.

Ukuveliswa kweSemiconductor: Ukucoceka okuphezulu kwePFA kunye nokumelana nokubola kwenza ukuba ibe yinto ephambili kwisixhobo sokwenza i-semiconductor, njengemibhobho kunye nemikhumbi esetyenziselwa ukuveliswa kweenkqubo ze-chemical vapor deposition (CVD).

Izixhobo zonyango: Kwicandelo lezonyango, i-PFA isetyenziswa ngokuqhelekileyo ekwenzeni izixhobo ezineemfuno eziphezulu ze-biocompatibility, ezifana ne-catheters kunye ne-sensor housings.I-inertness yekhemikhali kunye nokuzinza kwe-thermal yezinto ze-PFA ziqinisekisa ukhuseleko kunye nokuthembeka kwezi zixhobo.

Ukuqukumbela
Olu hlalutyo lungentla lusinika umfanekiso ocacileyo wokuba yintoni na iPFA.PFA yimathiriyeli ye-fluoropolymer eyimfuneko kwinani lamashishini.Ukuxhathisa ubushushu obuphezulu, ukuxhathisa imichiza, ukungqubuzana okuphantsi, kunye neempawu zokugquma kombane ziyenza ibe luncedo kuluhlu olubanzi lwezicelo kwimichiza, i-elektroniki, kunye nemimandla yezonyango. Ukuba ujonge imathiriyeli enokugqwesa kwiimeko ezigqithisileyo, iPFA ngokuqinisekileyo lukhetho olufanele ukuqwalaselwa.