Kedu ihe kpatara ịhọrọ PTFE maka akara?

PTFE akaraA na-eji ngwọta akara akara n'ahịa ahịa mkpuchi ọdịnala dị ka pneumatics na hydraulics yana ikuku ikuku, ike, mmanụ na gas, ngalaba sayensị ndụ yana n'ọhịa nke ume ọhụrụ.

A na-eji njirimara nke PTFESeals mere site na PTFE (Polytetrafluoroethylene) ebe ọtụtụ ihe mkpuchi ndị ọzọ (dị ka elastomer, PUR, ihe akwa ákwà, wdg) na-emezughị ọnọdụ okpomọkụ a chọrọ, nguzogide kemịkalụ ma ọ bụ esemokwu na iyi chọrọ. PTFE chọpụtara site na mberede na. 1938 nke Dr. Roy J. Plunkett nke ụlọ nyocha Du Pont's Jackson dị na New Jersey, USA.Mgbe ọ na-enyocha gas ndị metụtara refrigerants fluorinated, ọ chọpụtara na otu ihe nlele nke fọdụrụ n'abali n'ime ebe nchekwa nchekwa cylinder etinyerela polymerised ozugbo ka ọ bụrụ ọcha siri ike.Nke a siri ike gosipụtara na ọ nwere ihe mejupụtara pụrụ iche nwere ihe ndị dị ịrịba ama.The molekụlastructure nke PTFE dabeere linear yinye nke carbon atom nke na-kpamkpam gbara gburugburu site fluorine atọm.Njikọ carbon-fluorine bụ otu n'ime ihe kachasị ike na-eme na ogige organic.

• Nkwụsi ike nke okpomọkụ n'ofe oke okpomọkụ: Ebe mgbaze dị elu nke PTFE (342 Celsius C) na njirimara morphological na-ekwe ka ihe ndị sitere na resin na-aga n'ihu na okpomọkụ ọrụ ruo 260 °C.N'elu okpomoku a, akụrụngwa anụ ahụ nke akụrụngwa na-ebelata, na-ebute ịka nká na mmebi ihe.A na-eji PTFE eme ihe na okpomọkụ cryogenic iji mechie mgbasa ozi dị egwu dị ka nitrogen mmiri mmiri (-196 Celsius C), hydrogen mmiri mmiri (-253 Celsius C) na helium mmiri mmiri (-269 Celsius C).PTFE nwere ikike pụrụ iche iguzogide mmebi ihe onwunwe, ịka nká na mgbanwe na ihe anụ ahụ n'oge ịgba ígwè okpomọkụ.
• Ikike ịgba ọsọ dị ala / nkụ: PTFE nwere ọnụ ọgụgụ esemokwu kacha ala nke siri ike mara.Ọ nwere ikike mmanye onwe ya, na-enye ikike ịgba ọsọ na-aga n'ihu na ngwa akara ike.
• Nnukwu ọgwụ mgbochi: The intra polymer yinye njikọ ike nke PTFE egbochi mmeghachi omume na ọtụtụ kemịkalụ, si otú na-eme ka ha kemịkal inert na elu okpomọkụ na nrụgide na fọrọ nke nta niile ulo oru chemicals na solvents.Naanị mgbasa ozi ole na ole ka amaara na ha na-emeghachi omume na PTFE: ọla alkali, fluorine na ụfọdụ fluoro-chemicals dị ka chlorine tri-fluoride na oxygen difluoride.PTFE dabara adaba na kọntaktị na nri ma na-egbo mkpa FDA.

O doro anya na site na akara akara, njirimara ndị a pụrụ iche na-enye ikike nke PTFE karịa nke ihe eji emechi elastomeric.

• Mbelata mkpisi aka
• Ndụ shelf na-akparaghị ókè: PTFE anaghị eme agadi karịa oge na ọkụ ultraviolet anaghị emetụta ya.
• Enweghị mgbawa mgbawa: PTFE adịghị enwe ike ịdaba na saturation nke gas dị elu nke nwere ike gbasaa n'ike ma mee ka mgbawa nke ihe ahụ mgbe a na-ewepụ nrụgide na mberede.
• Enweghị ọzịza n'ihi nnabata mmiri.
• Ọ dị mma maka ojiji na ọnọdụ agụụ.
• Njirimara eletrik dị mma: Ike dielectric dị elu, obere dielectric na-adịgide adịgide na oke ọkụ eletrik dị elu.