Ukusukela oko iDupont yaqala ukuvelisa i-PTFE ngo-1945, sele iyiminyaka engama-61 ukusukela oko.Ngoku njengemveliso ebalulekileyo ye-PTFEPTFE microporous filmisetyenziswa ngokubanzi, ukwandisa intsimi ukusuka kubunjineli bebhayoloji ukuya kwishishini leengubo, ukusuka kwishishini lomatshini ukuya kwi-petrochemical, kwishishini lokukhuselwa kwendalo lingasetyenziselwa kuphela iiprojekthi zokunyanga amanzi, kodwa kunye nokucocwa kwamasuntswana omoya.Kunokuthiwa uluhlu lwayo lwesicelo lusabanzi.
Iimpawu zepolytetrafluoroethylene
1. Iimpawu zesakhiwo semolekyuli
2. Ukuzinza kweekhemikhali
3. Iimpawu ze-Thermal
4. Iimpawu zoomatshini
5. Iimpawu zombane
6. Iipropati zomphezulu
Ukuphuhliswa kwefilimu ye-PTFE microporous
Okwangoku, inkqubo yemveliso yePTFE microporous filminendlela yefilimu ye-calender, ukuguqula indlela yefilimu kunye nendlela yokwelula ifilimu.Indlela yefilimu ye-Stretch inokwahlulwa ibe yindlela enye yokwelula kunye neendlela ezimbini, ngohlalutyo lwesakhiwo kunye nokulinganisa okwenyani, ifilimu eneendlela ezimbini kuphela enesakhiwo esihle se-microporous.Inkqubo yokuvelisa ifilimu ye-PTFE microporous ye-biaxially iboniswe kumzobo.
Ukusetyenziswa kwefilimu ye-PTFE microporous
1. Ukusetyenziswa kwizinto zokucoca
2. Ukusetyenziswa kwizinto zonyango
Ukulungiswa kwefilimu ye-PTFE
1. Inkqubo yangaphambili ye-PTFE microporous film
2. Inkqubo yokulungiselela
3. Inkqubo yokuvelisa
Impembelelo yeeparamitha zokusebenza kwiipropati zeefilimu ze-PTFE
Izinto ezichaphazela iipropati ze-PTFE iifilimu ze-microporous kwinkqubo yokwelula i-biaxial kunye nenkqubo yayo yangaphambili inzima kwaye ininzi.Ukongeza ekusebenzeni kwezixhobo zokucubungula, ubushushu bokwelula kunye nesantya sokwelula, ezinye izinto ezichaphazelayo zi: ukushisa okusebenzayo, umswakama osebenzayo.
Ubushushu bokusebenza: Iifilimu ze-PTFE zinovelwano ngakumbi kwiqondo lobushushu, kwaye amaqondo obushushu ahlukeneyo okusebenza anokubangela iipropati ezahlukeneyo zefilimu.Iqondo lobushushu liyipharamitha ebalulekileyo yokusebenza kungekhona kuphela kwinkqubo yokwelula, kodwa nakwi-PTFE yokucubungula i-resin kunye neenkqubo eziphakathi.
Ukufuma okuSebenzayo: Ukufuma kuxhomekeke kubushushu kwaye akunakuxoxwa ngaphandle kobushushu.Ukufuma kwe-Ambient nako kunempembelelo kwifilimu.
I-PTFE inozinzo olubalaseleyo lweekhemikhali, ukusebenza okuphezulu okuphezulu kunye nobushushu obuphantsi kunye nokuxhathisa ukubola, kwaye isetyenziswa ngokubanzi kumashishini ekhemikhali, epetroleum, endwangu, e-elektroniki kunye neyoomatshini.Ngeli xesha, i-hydrophobic eyomeleleyo kunye neepropathi ezithambileyo ze-PTFE ziyenza ibe yimathiriyeli efanelekileyo ye-membrane yokulungiselela imicu yelaphu enokungangeni manzi kunye ne-membrane distillation kunye ne-membrane contactors.Xa kuthelekiswa nezinye izinto ze-membrane, i-ePTFE inwebu kuphela kwenwebu enokuthi isetyenziswe ngokuzinzileyo ixesha elide kunye ne-coefficient yokudlulisa ubunzima obukhulu, kunye neenzuzo zobungakanani obuncinci, amandla okuzimela omelele kunye nomthwalo ophezulu wokulayisha we-fiber membranes engenanto. I-PTFE i-membrane yefayibha engenanto itsala ingqwalasela enkulu kwibala labanxibelelanisi benwebu.
Iinwebu ze-PTFE ze-fiber ezivulekileyo zilungiswa nge-extrusion-drawing method, kunye nenkqubo yokulungiselela ibandakanya ukuxuba, i-extrusion spinning, i-unidirectional stretching kunye ne-sintering.Imathiriyeli ye-PTFE exutywe ngokupheleleyo icinezelwe kwangaphambili kumatshini ongenanto ukwenza i-cylindrical blank.Izikhewu ezicinezelwe kwangaphambili zikhutshiwe kwaye zijikelezwe kwi-40-100 ° C.Emva kokunciphisa, ukuseta ubushushu ukufumana i-PTFE inwebu yefiber engenanto.Ukushisa kwe-degreasing yi-200-340 ° C, iqondo lokushisa lokushisa liyi-330-400 ° C, kwaye ixesha lokubeka ukushisa liyi-45-500 s.Ifom ye-microscopic iphantse ibe setyhula (i-elliptical okanye i-circular) isakhiwo se-pore.
Ixesha lokuposa: Jan-18-2022