I-Ethylene tetrafluoroethylene (ETFE) iyipulasitiki esekelwe ku-fluorine.Yakhelwe ukuthi ibe nokumelana nokugqwala okuphezulu namandla ngaphezu kwebanga lokushisa elibanzi.I-ETFE iyi-polymer futhi igama layo elisekelwe emthonjeni yi-poly(ethene-co-tetrafluoroethene).I-ETFE inezinga lokushisa eliphakeme kakhulu lokuncibilika, amakhemikhali amahle kakhulu, izakhiwo zikagesi kanye nezindawo zokumelana nemisebe ephezulu yamandla.Lapho kushiswa, i-ETFE ikhipha i-hydrofluoric acid.
Amathebula okuqhathanisa awusizo e-PTFE ngokumelene ne-FEP, PFA kanye ne-ETFE angatholakala kuwebhusayithi ye-DuPont, ebala izici zemishini, ezishisayo, zamakhemikhali, zikagesi, kanye nomhwamuko yazo ngayinye, ngokuhambisana.
I-ETFE ngempumelelo iyinguqulo yamandla aphezulu yabanye abathathu kuleli qembu, ngokuvamile ebonisa amakhono ancipha kancane kwezinye izinkambu uma kuqhathaniswa.
Ukushiswa kwe-ETFE kwenzeka ngendlela efanayo nenani lamanye ama-fluoropolymers, ngokukhipha i-hydrofluoric acid (HF).I-HF idla kakhulu futhi inobuthi, ngakho-ke kufanele kuqashelwe okufanele.
Ifilimu ye-ETFE iyazihlanza (ngenxa yobuso bayo obunganamathele) futhi iyasebenziseka kabusha.Ijwayele ukubhobozwa ngemiphetho ebukhali ngakho-ke isetshenziselwa kakhulu uphahla.Njengefilimu yokufulela inganwetshwa (ifike ku-3x) futhi iqhubeke ibe yi-taut uma kwenzeka ukuhluka okuthile kosayizi (ngenxa yokwanda okushisayo, isibonelo.) Ukusebenzisa ukushisela ukushisa, izinyembezi zingalungiswa ngesichibi noma amashidi amaningi ahlanganiswe amaphaneli amakhulu.
I-ETFE inamandla okuqina acishe abe ngu-42 MPa (6100 psi), nezinga lokushisa elisebenzayo lika-89 K kuya ku-423 K (−185 °C kuya ku-+150 °C noma −300 °F kuya ku-+300 °F).[3]
Ama-resin e-ETFE amelana nokukhanya kwe-ultraviolet.Ukuhlolwa kwesimo sezulu okusheshisiwe (okuqhathaniseka nokuchayeka kweminyaka engama-30) akukhiqizi nhlobo izimpawu zokuwohloka kwefilimu.
Isikhathi sokuthumela: Aug-10-2017