Ihe eji eme ihe eji eme plastik

Ihe eji eme ihe: PTFE (Polytetrafluoroethylene), PFA (Perfluoroalkoxy), ETFE (Tefzel®, ethylene tetrafluoroethylene), PVDF (Polyvinylidene Fluoride), PP (Polypropylene)…

Polytetrafluoroethylene (PTFE)

PTFE, Fluoropolymer nke a na-ejikarị eme ihe, nwere nguzogide corrosion dị elu nke ọma na ihe fọrọ nke nta ka ọ bụrụ kemịkalụ niile ma e wezụga fluorine elemental na ọla alkali gbazere.Tụkwasị na nke ahụ, PTFE nwere ihe ndị na-adịghị ahụkebe nke nwere ike ibelata ma ọ bụ wepụ ihe nkwụnye ego na mgbidi ọkpọkọ.Okpomọkụ ọrụ na sistemu ọkpọkọ nrụgide sitere na -20°F (-29°C) ruo 450°F (230°C).

PFA (Perfluoroalkoxy)

PFA na-egosipụta nguzogide kemịkalụ fọrọ nke nta ka ọ bụrụ PTFE.Kwesịrị ekwesị maka ọrụ site na 0°F ruo 450°F, PFA bụ thermoplastic fluorinated mara maka ike ya dị ọcha.PFA na-enye nguzogide na-akpụ akpụ dị elu na oke okpomoku, ezigbo okpomọkụ siri ike na nguzogide ọkụ pụrụ iche.

ETFE (Tefzel®, ethylene tetrafluoroethylene)

Tefzel® na-ejikọta ike nrụpụta yana nguzogide kemịkalụ pụtara ìhè nke na-abịaru nso polymer®.Site na -20°F ruo 300°F, a na-ahazi Tefzel n'ụzọ dị mfe ma mara ya maka nguzogide ike radieshon ya dị elu.

Polyvinylidene Fluoride (PVDF)

PVDF nwere ezigbo nguzogide ọtụtụ kemịkalụ, gụnyere halogen na oxidants siri ike.PVDF na-egosipụta ọmarịcha abrasion na nguzogide permeation.Dị ka PSI na-eji ma homopolymer (6 ″ – 8″ fittings) na copolymer resins (1″ – 8″ ọkpọkọ, 1″ – 4″ fittings), PVDF lined usoro na-egosi site 0°F (-29°C) 275°F (135°C).N'ihi na PVDF bụ naanị akụkụ fluorinated, okpomọkụ na ntinye nke mmiri mmiri na gas na-emetụta nguzogide kemịkal ya.

Polypropylene (PP)

Ihe eji PP homopolymer PSI nwere ezigbo nguzogide corrosion, nnabata mmiri dị ala, yana ezigbo akụrụngwa.Ebe ọ bụ na nchikota kemịkalụ ya na-emetụta nke ukwuu site na itinye uche na ọnọdụ okpomọkụ nke mmiri a na-ebuga, ojiji ya na sistemụ ọkpọkọ nrụgide na-adịkarị site na 0°F (-16°C) ruo 225°F (107°C).