A na-akpọkarị Teflon dị ka polytetrafluoroethylene (English abbreviation teflon ma ọ bụ [PTFE, F4]), nke a maara dị ka/nke a na-akpọkarị "eze rọba", ma makwaara dị ka "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", na "Teflon". Ọ bụ ngwakọta polymer nke tetrafluoroethylene mere site na polymerization, na nhazi ya dị mfe dịka -[-cf2-cf2 -] n-.

Polytetrafluoroethylene, nke a na-akpọkarị mkpuchi na-adịghị mma ma ọ bụ dị mfe ihicha ihe. Nke a ihe onwunwe nwere àgwà nke acid na alkali iguzogide, iguzogide dị iche iche organic solvents, na fọrọ nke nta insoluble ke niile mgbaze. N'otu oge ahụ, polytetrafluoroethylene nwere àgwà nke nguzogide okpomọkụ dị elu, ọnụ ọgụgụ ya nke esemokwu dị nnọọ ala, ya mere enwere ike iji ya mee ihe maka mmanye, ma bụrụkwa ihe mkpuchi dị mma maka mfe ihicha akwa mmiri dị n'ime.

Teflon plating tumadi na-adabere n'ụdị usoro ịchọrọ ikpebi ka esi agba. Ihe kachasị mkpa bụ na mkpuchi Teflon kwesịrị ka akpọọ nkụ na okpomọkụ dị elu tupu ejiri ya mee ihe.

Njirimara nke Teflon:

Enweghị nrapado: Ihe fọrọ nke nta ka ọ bụrụ ihe niile anaghị ejikọta na mkpuchi teflon.

Obere okpomọkụ na-eguzogide: ezigbo igwe siri ike; Ọbụna ma ọ bụrụ na okpomọkụ na-adaba na -196 Celsius C, 5% elongation nwere ike ịnọgide na-enwe. Ọ ka dị nro na -100 degrees.

Nnukwu okpomọkụ na-eguzogide: polytetrafluoroethylene mkpuchi nwere ezigbo okpomọkụ na obere okpomọkụ na-eguzogide. Ọ nwere ike idi elu okpomọkụ ruo 300 Celsius C maka obere oge, n'ozuzu nwere ike na-eji na-aga n'ihu n'etiti 240 ° C na 260 Celsius C, na nwere ịrịba thermal kwụsie ike, ọ nwere ike na-arụ ọrụ na-na okpomọkụ na-enweghị embrittlement, na ọ dịghị agbaze na elu okpomọkụ. .

Mmanya dị elu: Ọ bụ ọnụọgụ esemokwu kacha ala na ihe siri ike. Ọ nwere ọnụ ọgụgụ kacha nta nke esemokwu (0.04) n'etiti plastik. Dị nro karịa ice.

Nguzogide mmiri: elu nke mkpuchi PTFE adịghị edozi mmiri na mmanụ, ọ dịghịkwa mfe ịrapara na ngwọta n'oge mmepụta ihe. Ọ bụrụ na enwere ntakịrị unyi, enwere ike wepu ya site na ihichapụ naanị. Oge nkwụsịtụ dị mkpirikpi na-azọpụta oge ma na-eme ka arụmọrụ ọrụ dịkwuo mma.

Nguzogide iyi: Ọ nwere nguzogide iyi mara mma n'okpuru ibu dị elu. N'okpuru ụfọdụ ibu, ọ nwere uru abụọ nke iguzogide iyi na enweghị nrapado.

Nguzogide corrosion: polytetrafluoroethylene fọrọ nke nta ka ọ ghara ịwakpo ọgwụ ọjọọ, ọ pụkwara iguzogide acid niile siri ike (gụnyere aqua aqua), oxidants siri ike, na-ebelata ndị ọrụ na ihe mgbaze organic dị iche iche na mgbakwunye na ọla alkali gbazere, mgbasa ozi fluorinated na sodium hydroxide n'elu 300 ° C, na nwere ike ichebe akụkụ site n'ụdị corrosion kemịkalụ ọ bụla.

Nguzogide ịka nká: nguzogide radieshon na obere permeability: ogologo oge ikpughe na ikuku, elu na arụmọrụ na-agbanwe agbanwe.

Enweghị ọkụ: oke ikuku oxygen dị n'okpuru 90.

Nguzogide acid na alkali: enweghị ike ime ya na acid siri ike, ntọala siri ike na ihe mgbaze organic (gụnyere acid anwansi, ya bụ, fluoroantimonic acid).

Nguzogide oxidation: na-eguzogide corrosion site na oxidants siri ike.

Mkpuchi: arụmọrụ eletrik dị mma, bụ ihe mkpuchi mkpuchi klaasị C dị mma, akwa akwa akwụkwọ akụkọ nwere ike igbochi nrụgide dị elu 1500V. Igwe ọkụ anaghị emetụta ihe mkpuchi eletrik ya. Ngwunye dielectric na-adịgide adịgide na ọnwụ dielectric dị ala n'ọtụtụ dịgasị iche iche, na mgbawa voltaji, olu resistivity na arc resistance dị elu.

Acid-base: na-anọpụ iche.