Ọdịiche dị n'etiti ETFE na PTFE ihe
ETFE (ethylene-tetrafluoroethylene copolymer) na PTFE (polytetrafluoroethylene) bụ fluoroplastics abụọ na-arụ ọrụ dị elu, dị iche iche na nhazi kemịkalụ, akụrụngwa akụrụngwa, njirimara nhazi, na ngwa. ETFE, mgbe ị na-ejigide PTFE's magburu onwe chemical-eguzogide, budata mma n'ibu ike na nhazi arụmọrụ, ma ya okpomọkụ iguzogide bụ ubé ala. PTFE, n'aka nke ọzọ, bụ onye a ma ama n'ihi na ọ na-eguzogide oke okpomọkụ na nkwụsi ike nke kemịkal, ma ọ na-esi ike ịhazi ya. Ihe na-esonụ bụ ntụle zuru ezu nke abụọ site n'ọtụtụ ụzọ.
Ọdịdị kemịkal na ihe ndị bụ isi
- PTFE: Polymerized sitere na tetrafluoroethylene monomers, atom fluorine kpuchiri ihe owuwu molekụla ya kpamkpam. Ọ nwere kristal dị elu yana inertness kemịkalụ siri ike, na-enweta ya aha nke "Eze Plastics."
- ETFE: Copolymer ọzọ nke ethylene na tetrafluoroethylene. Ntinye nke ethylene nkeji n'ime agbụ molekụla na-ebelata ọdịnaya fluorine, si otú a na-eme ka ike sie ike na nhazi ya, mana nguzogide kemịkalụ ya dị ntakịrị ala. PTFE.
Ntụnyere ihe arụrụ arụ
- Ike na ike: ETFE na-anya isi ike nke ruru 50 MPa, ugboro abụọ nke PTFE, na elongation nke 100% -300%, na-egosipụta nguzogide mmetụta dị mma; PTFE, n'aka nke ọzọ, ọ dịtụ nro ma ọ na-eguzogide mmiri dị elu.
- Ọnụọgụ nke esemokwu: Ha abụọ nwere ọnụọgụ esemokwu dị oke ala, mana PTFE na-enye nguzogide iyi ka elu, ebe ETFE dabara adaba maka akụrụngwa nhazi chọrọ ịdị elu.
Ịrụ ọrụ nhazi
- ETFE: Agbaze-processable (dịka ọmụmaatụ, extrusion, injection ịkpụzi), na a ala ịkpụzi okpomọkụ (240-270 ℃), adabara n'ichepụta mgbagwoju shapes.
- PTFE: Ebe mgbaze dị elu (327 ℃) na nnukwu agbaze viscosity, na-eme ka agbaze-processable; A na-ahazi ya site na iji sintering ma ọ bụ ịpị usoro, na-ebute ọnụ ahịa nhazi dị elu.
