Cov ntaub ntawv yas liner

Cov ntaub ntawv liner: PTFE (Polytetrafluoroethylene), PFA (Perfluoroalkoxy), ETFE (Tefzel®, ethylene tetrafluoroethylene), PVDF (Polyvinylidene Fluoride), PP (Polypropylene) ...

PTFE (Polytetrafluoroethylene)

PTFE, feem ntau siv fluoropolymer, muaj kev kub siab corrosion kuj zoo rau txhua yam tshuaj tshwj tsis yog cov tshuaj fluorine thiab cov hlau molten alkali.Tsis tas li ntawd, PTFE muaj cov khoom tsis zoo uas tsis yog nplaum uas tuaj yeem txo lossis tshem tawm cov khoom tso rau ntawm cov yeeb nkab phab ntsa.Kev pabcuam kub hauv cov kav dej siab yog li ntawm -20 ° F (-29 ° C) txog 450 ° F (230 ° C).

PFA (Perfluoroalkoxy)

PFA nthuav tawm cov tshuaj tiv thaiv zoo ib yam rau PTFE.Tsim nyog rau kev pabcuam ntawm 0 ° F txog 450 ° F, PFA yog fluorinated thermoplastic paub txog nws lub peev xwm ultra-ntshiab.PFA muab kev nkag siab zoo tshaj plaws ntawm qhov kub thiab txias, zoo heev tsis tshua muaj kub toughness thiab tshwj xeeb nplaim taws.

ETFE (Tefzel®, ethylene tetrafluoroethylene)

Tefzel® sib txuas ua ke txhua yam toughness nrog cov tshuaj tiv thaiv zoo heev uas mus txog polymer®.Siv tau los ntawm -20 ° F txog 300 ° F, Tefzel tau yooj yim ua tiav thiab paub txog nws lub zog hluav taws xob hluav taws xob siab.

PVDF (Polyvinylidene Fluoride)

PVDF muaj kev tiv thaiv zoo rau ntau yam tshuaj, suav nrog halogens thiab muaj zog oxidants.PVDF nthuav tawm zoo heev puas thiab permeation kuj.Raws li PSI siv ob qho tib si homopolymer (6 "- 8" fittings) thiab copolymer resins (1 "- 8" yeeb nkab, 1 "- 4" fittings), PVDF lined system yog ntsuas los ntawm 0 ° F (-29 ° C) mus rau 275 ° F (135 ° C).Vim tias PVDF tsuas yog ib feem ntawm fluorinated, nws cov tshuaj tiv thaiv yog cuam tshuam los ntawm qhov kub thiab txias ntawm cov kua thiab roj.

PP (polypropylene)

PP homopolymer PSI siv tau zoo corrosion kuj, tsis tshua muaj noo noo nqus, thiab zoo mechanical zog.Txij li nws cov tshuaj tiv thaiv muaj kev cuam tshuam zoo heev los ntawm qhov concentration thiab kub ntawm cov kua xa tawm, nws siv hauv cov kav dej siab feem ntau txwv los ntawm 0 ° F (-16 ° C) txog 225 ° F (107 ° C).