Qalab caag ah

Qalabka Dabada ah: PTFE (Polytetrafluoroethylene), PFA (Perfluoroalkoxy), ETFE (Tefzel®, ethylene tetrafluoroethylene), PVDF (Polyvinylidene Fluoride), PP (Polypropylene)…

Polytetrafluoroethylene (PTFE)

PTFE, fluoropolymer-ka ugu badan ee la isticmaalo, waxa uu leeyahay iska caabin daxalka heer sare ah oo aad u heersare ah oo ku saabsan dhammaan kiimikooyinka marka laga reebo fluorine elemental iyo biraha alkali dhalaalaysa.Intaa waxaa dheer, PTFE waxay leedahay sifooyin aan caadi ahayn oo aan dhejis ahayn kuwaas oo yareyn kara ama baabi'in kara kaydka kaydka ee derbiyada tuubooyinka.Heerkulka adeegga ee nidaamyada tuubooyinka cadaadiska waxay u dhexeeyaan -20°F (-29°C) ilaa 450°F (230°C).

PFA (Perfluoroalkoxy)

PFA waxay muujisaa iska caabin kiimiko oo la mid ah PTFE.Ku habboon adeega laga bilaabo 0°F ilaa 450°F, PFA waa heerkulbeeye fluorinated ah oo loo yaqaan awoodiisa saafiga ah.PFA waxay bixisaa iska caabin gurguurta heerkul sare, heerkul aad u hooseeya iyo caabbinta ololka gaarka ah.

ETFE (Tefzel®, ethylene tetrafluoroethylene)

Tefzel® waxa uu isku daraa adkaanta farsamada iyo iska caabbinta kiimikaad ee aad u wanaagsan oo ku soo wajahan polymer®.Wax ku ool u ah -20°F ilaa 300°F, Tefzel si fudud ayaa loo farsameeyaa waxaana loo yaqaan caabbinta shucaaca tamarta sare.

PVDF (Polyvinylidene fluoride)

PVDF waxay iska caabin heer sare ah u leedahay kiimikooyin badan, oo ay ku jiraan halogens iyo oksaydhiyeyaasha xooggan.PVDF waxay soo bandhigaysaa iska caabin aad u wanaagsanSida PSI ay u isticmaasho homopolymer-ka labadaba (6 ″ – 8 ″ xirmooyinka) iyo resins copolymer (1″ – 8″ tuubbada, 1″ – 4″ xirmooyinka), nidaamka safan ee PVDF waxaa lagu qiimeeyay min 0°F (-29°C) ilaa 275°F (135°C).Sababtoo ah PVDF qayb ahaan fluorinated, caabbinta kiimikada waxaa saameeya heerkulka iyo uruurinta dareeraha iyo gaasaska.

PP (polypropylene)

Isticmaalka PP homopolymer PSI wuxuu leeyahay iska caabin daxalka wanaagsan, nuugista qoyaanka hooseeya, iyo sifooyin farsamo oo wanaagsan.Maadaama caabbinta kiimikaad ay si weyn u saamaysay xoogga iyo heerkulka dareeraha la gudbiyay, isticmaalkeeda nidaamka tuubooyinka cadaadiska ayaa guud ahaan xaddidan 0°F (-16°C) ilaa 225°F (107°C).