Zida Zapulasitiki za Liner

Zida Zamagetsi: PTFE (Polytetrafluoroethylene), PFA (Perfluoroalkoxy), ETFE (Tefzel®, ethylene tetrafluoroethylene), PVDF (Polyvinylidene Fluoride), PP (Polypropylene)…

PTFE (Polytetrafluoroethylene)

PTFE, fluoropolymer yomwe imagwiritsidwa ntchito kwambiri, imakhala ndi kutentha kwapamwamba kwambiri kukana pafupifupi mankhwala onse kupatula ma elemental fluorine ndi zitsulo zosungunuka za alkali.Komanso, PTFE ali zachilendo sanali ndodo katundu amene angathe kuchepetsa kapena kuthetsa buildup wa madipoziti pa makoma chitoliro.Kutentha kwa ntchito m'mapaipi okakamiza kumayambira -20°F (-29°C) mpaka 450°F (230°C).

PFA (Perfluoroalkoxy)

PFA imawonetsa kukana kwamankhwala komwe kumafanana ndi PTFE.Yoyenera kugwira ntchito kuchokera pa 0 ° F mpaka 450 ° F, PFA ndi thermoplastic yokhala ndi fluorinated yomwe imadziwika ndi mphamvu zake zoyera kwambiri.PFA imapereka kukana kwamphamvu kwambiri pa kutentha kwakukulu, kulimba kwa kutentha kochepa komanso kukana kwapadera kwamoto.

ETFE (Tefzel®, ethylene tetrafluoroethylene)

Tefzel® imaphatikiza kulimba kwamakina ndi kukana kwamphamvu kwamankhwala komwe kumayandikira polymer®.Kugwira ntchito kuchokera -20 ° F mpaka 300 ° F, Tefzel imakonzedwa mosavuta ndipo imadziwika chifukwa champhamvu kwambiri yolimbana ndi ma radiation.

PVDF (Polyvinylidene Fluoride)

PVDF imalimbana kwambiri ndi mankhwala ambiri, kuphatikiza ma halogen ndi ma oxidants amphamvu.PVDF imawoneka bwino kwambiri pakhungu komanso kukana kulowa mkati.Monga PSI imagwiritsa ntchito homopolymer (6 ″ - 8 ″ zovekera) ndi copolymer resins (1 ″ - 8 ″ chitoliro, 1 ″ - 4 ″ zovekera), ndi PVDF lined dongosolo adavoteledwa kuchokera 0 ° F (-29 ° C) mpaka 275°F (135°C).Chifukwa PVDF imakhala ndi fluorinated pang'ono, kukana kwake kwa mankhwala kumakhudzidwa ndi kutentha ndi kuchuluka kwa zakumwa ndi mpweya.

PP (Polypropylene)

PP homopolymer PSI amagwiritsa ntchito kukana kwa dzimbiri, kuyamwa kochepa kwa chinyezi, komanso makina abwino.Popeza kukana kwake kwamankhwala kumakhudzidwa kwambiri ndi kuchuluka kwake komanso kutentha kwa madzi otumizidwa, kugwiritsa ntchito kwake pamapaipi okakamiza nthawi zambiri kumakhala kochepa kuchokera ku 0 ° F (-16 ° C) mpaka 225 ° F (107 ° C).