ETFE vs PTFE

I-Ethylene tetrafluoroethylene (ETFE) yiplastiki esekwe kwifluorine.Yayiyilelwe ukuba ibe nokumelana ne-corrosion ephezulu kunye namandla kuluhlu olubanzi lobushushu.I-ETFE yipolymer kwaye igama layo elisekelwe kumthombo yi-poly(ethene-co-tetrafluoroethene).I-ETFE inobushushu obuphezulu bokunyibilika, imichiza egqwesileyo, umbane kunye neempawu zokumelana nemitha ephezulu.Xa utshiswa, i-ETFE ikhupha i-hydrofluoric acid.

Iitheyibhile eziluncedo zothelekiso lwe-PTFE ngokuchasene ne-FEP, PFA kunye ne-ETFE zinokufumaneka kwiwebhusayithi ye-DuPont, idwelisa oomatshini, i-thermal, iikhemikhali, iimpawu zombane, kunye nomphunga wento nganye, icala necala.

I-ETFE ngokufanelekileyo inguqulelo yamandla aphezulu kwabanye abathathu kweli qela, ehlala ibonakalisa amandla ancipha kancinci kwezinye iindawo ngokuthelekisa.

Ukutshiswa kwe-ETFE kwenzeka ngendlela efanayo nenani lezinye i-fluoropolymers, ngokukhupha i-hydrofluoric acid (HF).I-HF iyonakalise kakhulu kwaye inetyhefu, ngoko ke kufuneka kuqwalaselwe ngokufanelekileyo.

Ifilimu ye-ETFE iyazicoca (ngenxa yomgangatho wayo ongapheliyo) kwaye iphinda isetyenziswe.Iqhelekile kwi-punctures ngamacaleni abukhali kwaye ngoko ke isetyenziselwa kakhulu uphahla.Njengefilimu yokufulela inokolulwa (ukuya kuthi ga kwi-3x) kwaye ibe yi-taut ukuba kukho ukuhlukahluka kobungakanani (ngenxa yokwandiswa kwe-thermal, umzekelo.) iipaneli ezinkulu.

I-ETFE inamandla aqikelelwayo angama-42 MPa (6100 psi), kunye noluhlu lobushushu obusebenzayo lwe-89 K ukuya ku-423 K (−185 °C ukuya +150 °C okanye −300 °F ukuya +300 °F).[3]

I-ETFE resins ixhathisa ukukhanya kwe-ultraviolet.Uvavanyo olukhawulezileyo lwemozulu (eluthelekiseka kwiminyaka engama-30) luvelise phantse zonke iimpawu zokuwohloka kwefilimu.