Kedu ihe bụ njirimara nke ihe mkpuchi

▪ Nitrile Rubber (NBR)

NBR bụ ụdị rọba a na-ejikarị eme ihe maka ọrụ nka.Ọ kwụsiri ike na ọtụtụ hydrocarbons dị ka mmanụ, griiz na abụba, yana itughari alkalis na nitric acid, enwere ike iji ya na oke okpomọkụ akwadoro nke 95°C (203°F).Ebe ozone bibiri NBR, enweghi ike ikpughe ya na ìhè UV ma kwesiri idobe ya n'ìhè.

Rubber Fluorinated (FPM)

A na-ejikarị FPM ebe ụdị roba ndị ọzọ adịghị mma, karịsịa na okpomọkụ dị elu ruo 180 ° C (356 ° F), na-enwe ezigbo nkwụsi ike nke kemịkal.na iguzogide ozonemaka ọtụtụ ngwaahịa, mana kwesịrị izere mmiri ọkụ, uzuoku, lye, acid na mmanya.

Polytetrafluoroethylene (PTFE)

PTFE nwere magburu onwe chemical kwụsie ike na corrosion eguzogide (ọ bụ otu n'ime ndị kasị mma corrosion-eguzogide ihe n'ụwa taa, ma e wezụga n'ihi na a wụrụ awụ alkali ọla, PTFE na-esiri corroded ọ bụla chemical reagents).Dịka ọmụmaatụ, mgbe sie ya na sulfuric acid, nitric acid, hydrochloric acid, mmanya, ma ọ bụ ọbụna na aqua regia, ịdị arọ ya na arụmọrụ ya agaghị agbanwe.Okpomọkụ na-arụ ọrụ: -25°C ruo 250°C