PEEK vs PTFE: ʻO ka mea lanakila no kāu noi?

1. Hōʻikeʻike

PEEK (Polohana) a me PTFE (Poleterafluoes) he mau polymers ʻenehana hana kiʻekiʻe akā me nā ikaika a me nā nāwaliwali.

PEEK he semi-crystalline, ikaika-ikaika, kiʻekiʻe-stiffness thermoplastic me ka maikaʻi o ke kūpale kolo, paʻa dimensional a me ka hana mechanical wela kiʻekiʻe; hoʻohana ʻia ma kahi o ka hale, pono ka hilinaʻi mechanical lōʻihi a me ka sterilizability.

Ptfe he ultra-inert fluoropolymer kaulana no ka ha'aha'a ha'aha'a loa, inertness kemika puni honua a me ka hana dielectric koʻikoʻi akā he haʻahaʻa ka ikaika mechanical, kolo kiʻekiʻe (kahe anu) a me ka abrasion susceptibility.

I ka pōkole: koho PEEK i ka wā e kūkulu ai ka ikaika, ʻoʻoleʻa a me ka mea kolo haʻahaʻa; E koho i ka PTFE i ka wā e koi ʻia ai ka inertness kemika a me ka hōʻemi friction.

2. Nā kumu waiwai

He aha ka PEEK (PolyEtherEtherKetone)

• He thermoplastic semirystalline (ʻohana polyaryletherketone aromatic).
• Lae hehee ≈ 343 ° C; hoʻololi aniani ≈ 143 ° C.
• Hiki ke hana ʻia e nā ala thermoplastic maʻamau (ʻO nā molding molding, hānehi, ke kāohiʻana), machinable a weldable (pā-wela, Ultrasinatic, vibration a i ʻole laser i nā hoʻonohonoho hoʻonohonoho).
• Hoʻohana maʻamau: nā bearings a me nā ʻāpana lole (piha piha), Nā Kūlana Kūlana, NA KEKI ANA, ʻāpana ʻōnaehana ʻaila wela, Nā Kākoʻo.

He aha ka PTFE (Polytetrafluoroethylene)

• He fluoropolymer me ka iwi kuamoʻo fluorinated; kiʻekiʻe symmetric a me ke kiʻekiʻe kemika.
• Lae hehee ≈ 327 ° C, akā ʻaʻole hiki ke hoʻoheheʻe ʻia i nā lako thermoplastic maʻamau - ua hana ʻia e ka hoʻopili ʻana i ka extrusion., extrusion hipa kāne, hoʻoheheʻe ʻia a me ka sintering.
• Kūlana kemika inertness, haʻahaʻa haʻahaʻa loa o ka friction a me nā waiwai dielectric maikaʻi loa.
• Hoʻohana maʻamau: Aloha, gasts, nā mea hoʻokae kemika, nā uhi haʻahaʻa haʻahaʻa, 'ōlelo uila.

3. Nā waiwai koʻikoʻi - papa ʻikepili (Nā Kūlana maʻamau) a me nā memo kūpono

ʻO nā pae helu āpau he alakaʻi ʻenehana maʻamau no nā māka kālepa maʻamau (polimer maʻemaʻe). Nā māka hoʻohui/hoʻopiha (KālekaʻAʻI, aniani, bronze, MoS₂) hoʻololi nui i nā waiwai.

Nā memo: piha piha (CF-PEEK, PTFE piha aniani/ keleawe) hoʻololi i nā helu he nui: Hoʻonui ka PEEK piha i ka carbon i ka ʻoʻoleʻa a hoʻemi i ka ʻaʻahu; Hoʻonui ka PTFE piha i ke keleawe i ka hiki ke hoʻouka a me ka pale ʻana i ka abrasion akā hoʻonui i ka friction a me ka paʻa.

4. Kauhini & ʻO ka hana kiʻekiʻe kiʻekiʻe

• PEEK: paʻa ka ikaika mechanical i nā wela kiʻekiʻe; typical hoomau lawelawe a hiki i ~200–250 °C, kiʻekiʻe nā huakaʻi pōkole. Hoʻonui wela haʻahaʻa e pili ana i nā polymers he nui; maikaʻi ke kūlana kūpaʻa a me ke kolo haʻahaʻa ma ke kiʻekiʻe T i hoʻohālikelike ʻia me PTFE.
  Decomposes ma luna o ~400 °C — thermal oxidation pono ka mana. Hiki ke ho'oma'ema'e pinepine 'ia ka PEEK (Autoclave) - mea nui no ka hoʻohana lāʻau.
• Ptfe: paʻa kemika ma nā wela kiʻekiʻe a mālama i ka friction haʻahaʻa a hiki i ~250–260 °C; ma luna o ~260-300 °C decomposition hiki mai a me nā mea ʻawaʻawa fluorinated (E.g., Hf, ʻoiai ʻokoʻa nā huahana decomposition pololei) hoʻokuʻu ʻia - he mea noʻonoʻo ka palekana wela.
  No ka mea, ke kolo nei ka PTFE, ʻO kona wela lawelawe mīkini hoʻohana ma lalo o ka ukana ʻoi aku ka haʻahaʻa ma mua o kona kūpaʻa wela.

Ka manaʻo kūpono: No ka Nā Kūlana Kūlana hana ma lalo o ka ukana ma ke kiʻekiʻe wela koho PEEK; no ka kemika a i ʻole nā ​​ʻili heʻe ʻike ʻia i nā wela kiʻekiʻe akā haʻahaʻa haʻahaʻa haʻahaʻa mechanical, Ptfe ʻae ʻia.

5. Kūleʻa kimemika & waiwai waiwai

• Kūleʻa kimemika:Ptfe pili i "kū'ē i nā mea a pau" - kū'ē ia i nā waikawa ikaika, Nā Hale Kiʻi, Mālama, oxidizers a koho pinepine ia kahi e ola ole ai kekahi polymer.
  PEEK hāʻawi maikaʻi i ke kū'ē i nā hydrocarbons, na ailai wai, mahu a me na mea hoohehee he nui; Akā naʻe,, ʻO nā oxidizer ikaika a me ka fluorine elemental hoʻouka PEEK.
  No ka nui o nā noi hana kemika ua lawa ka PEEK; no ka mea ʻoi aku ka maikaʻi o nā chemistries PTFE ʻoi aku ka palekana.
• Dielectric & Hoʻohana RF:Ptfe he mau dielectric haʻahaʻa (~2.0), haʻahaʻa haʻahaʻa haʻahaʻa tangent - kūpono no nā noi RF/microwave.
  PEEK he insulator uila maikaʻi akā me ka hoʻomau mau a me ka poho dielectric kiʻekiʻe; koho ʻia kahi koi mechanical a me ka wela ma mua o ka pono no ka pohō dielectric ultra-haʻahaʻa.

6. Tribology, ʻaʻa, hoʻopaʻa ʻana a me ka hana hoʻoikaika

• Kuiahuli: He haʻahaʻa haʻahaʻa loa ko ka PTFE a hāʻawi i ka lubricity maikaʻi loa.
  PEEK (maʻemaʻe) ʻoi aku ka kiʻekiʻe o ka friction akā piha ka PEEK (KālekaʻAʻI, ʻO nā hui PTFE) hiki ke hoemi loa i ka friction.
• ʻAʻa: Loaʻa iā PEEK ʻO ka paleʻana i ke kū'ē pili i ka PTFE maʻemaʻe; no nā noi hoʻoheheʻe ma lalo o ka haʻawe PEEK (a i ʻole PEEK piha) ʻoi aku ka lōʻihi o ka PTFE.
  ʻO ka maikaʻi o PTFE ka lubricity a me ka conformability - nui nā bearings a me nā kumu haʻahaʻa haʻahaʻa e hoʻohana ai PTFE-laina nā hale a i ʻole PTFE piha (keleawe/PTFE) no ka hoʻomaikaʻi ʻana i ke ola o ka lole.
• Hoka & sila paʻa:ʻO ka PTFE kolo a me ke anu ʻoi loa ma lalo o nā haʻawe hoʻomau - ʻaʻole kūpono no nā ʻāpana haʻahaʻa paʻa e koi ana i ke kūpaʻa dimensional..
  PEEK ʻoi aku ka maikaʻi o ka pale ʻana i nā kolo a makemake ʻia kahi e mālama ai nā sila a i ʻole nā ​​​​spacers i ka preload i ka manawa.
• Moe: No ka haʻahaʻa haʻahaʻa, ʻOi aku ka maikaʻi o nā sila conformable PTFE; no nā sila i hoʻouka ʻia e koi ana i ka mālama ʻana i ke ʻano a me ka ikaika wela kiʻekiʻe, PEEK (hui pinepine ʻia me nā elastomers a i hoʻohana ʻia e like me nā apo kākoʻo) a i ʻole ka PEEK composites i hoʻopiha ʻia.

7. Ka hoʻoiliʻana, huahuai, hui pū, ʻoihana hoʻomākaukau

PEEK

• Ka hoʻoiliʻana: ʻO nā molding molding, hānehi, hoʻoheheʻe ʻia, machining (CNC). ʻO ka wela hoʻoheheʻe kiʻekiʻe e pono ai ka hana hoʻomalu (haunaele, kiʻekiʻe mold temps).
• Hui pū: Hiki ke wiliwili ʻia ka PEEK (pā-wela, Ultrasinatic) a me nā mea hoʻopili paʻa ma hope o ka hoʻomākaukau ʻana i ka ʻili.
• Ke hoʻopauʻana: maʻalahi loa i ka mīkini i nā tolerances paʻa; Hiki i nā lāʻau lapaʻau ke hoʻomaikaʻi i ka ʻaʻahu a i ʻole ka friction.

Ptfe

• Ka hoʻoiliʻana: ʻAʻole hiki ke hoʻoheheʻe ʻia ka PTFE i ke ʻano o nā thermoplastics; ua hana ʻia e ka hoʻopili ʻana, extrusion hipa kāne, hoʻoheheʻe ʻia a me ka sintering ma hope. Pono ka mana maikaʻi no ka porosity a me ka densification.
• Hui pū & hoʻopaʻa ʻana: ʻAʻole maikaʻi ka hoʻopaʻa ʻana o ka PTFE i nā mea hoʻopili ke ʻole i kālai ʻia kemika (E.g., Na/naphthalide etch) a i ʻole plasma i mālama ʻia a hoʻomaʻamaʻa ʻia. He mea maʻamau ka hoʻopaʻa ʻana a me ka overmolding.
• Huahuai: Hoʻohana pinepine ʻia nā ʻāpana nui mai nā poloka extruded/sintered a i ʻole skived film. Hoʻopili ʻia nā uhi o ka PTFE e ka pipi ʻana i nā dispersions a me ka kuke ʻana.

Ka hopena maʻamau: Inā maʻamau ka nui-volume thermoforming (ʻO nā molding molding) koiʻia, PEEK ʻoi aku ka pololei. Ptfe koi i nā lako hana kūikawā a me ka sintering.

8. Kālā, kahi hoʻokumu, hooponopono & Nā manaʻo noʻonoʻo

• Kālā: ʻO lāua ʻelua he polymers premium. PEEK Nā Kaumaka (ʻoi aku ka lāʻau lapaʻau a i ʻole nā ​​māka piha) ʻoi aku ka nui o ke kumukūʻai no ka kg ma mua o ka PTFE maʻamau, akā, pili ke kumukūʻai i ka papa a me ka nui.
  ʻO ka nui o ke kumukūʻai ʻāpana pono e hoʻohālikelike i ka paʻakikī o ka hoʻoili ʻana - hiki ke kūʻai ʻia ka hana PTFE a me ka sintering.
• Hoolako & alakaʻi i nā manawa: Hiki ke kāohi ʻia ka lako PEEK (kakaikahi na mea hana), ʻoiai ʻo PTFE i hoʻopuka nui ʻia e nā mea hoʻolako lehulehu ma ka honua.
• Hooponopono & palekana: Hoʻohana ʻia ka PEEK ma NA KEKI ANA (nā māka biocompatible, ISO/USP noonoo).
  Hoʻohana nui ʻia ʻo PTFE i ka hoʻopili ʻana i ka meaʻai a me nā ʻāpana lāʻau lapaʻau akā nā hopohopo kaiapuni PFAS (pili i nā mea kōkua kaʻina hana a me ke ola-ola) ua alakaʻi i ka nānā kānāwai;
  Hiki i ka ho'ohehe'e wela o ka PTFE ke ho'ohua i ka uahi 'awa'awa - 'o ka hana 'ana a me ka ho'ohana 'ana e mālama i ka pilikia o ka mahu.
• Kaiualoa: ʻO PTFE a me nā fluoropolymers e pili ana i ka hoʻomau i ke kaiapuni (Pilikia ʻohana PFAS).
  Hiki ke hana hou i nā polymers ʻelua ma kekahi mau kahawai, akā ʻoi aku ka paʻakikī o nā mea ʻelua i ka hana hou ʻana ma mua o nā plastic commodity. ʻOi aku ka maʻalahi o ka hana hou ʻana o PEEK me ka thermoplastically.

9. Hoʻohālikelike Noi: PEEK vs PTFE

Kāhele, nā puʻupuʻu a me nā mea hoʻoheheʻe

• Koi: haʻahaʻa haʻahaʻa haʻahaʻa, E kāʻei i ke kū'ē, kū ponoʻole, ola lōʻihi ma lalo o ka ukana.
• PEEK: makemake ʻia no nā haʻi ukana (E.g., nā mea kanu, nā bearings i nā pumps/motors) ke koi 'ia ka 'o'ole'a a me ke kolo ha'aha'a; KālekaʻAʻI- a i ʻole PEEK piha aniani hāʻawi i ka modulus maikaʻi a me ka lole haʻahaʻa. ʻAʻole ʻo PEEK i ka mīkini ʻana i nā hoʻomanawanui paʻa.
• Ptfe: kohoia no haʻahaʻa haʻahaʻa sliding a me nā kumu lāʻau conformable; keleawe/PTFE Hāʻawi nā composites i hoʻomaikaʻi i ka hiki ke hoʻouka vs PTFE puʻupaʻa.
• Manaʻo hoʻolālā: e hoʻohana i ka PEEK kahi e koʻikoʻi ai ke kākoʻo kumu a me ka liʻiliʻi liʻiliʻi; hoʻohana i ka PTFE (a i ʻole nā ​​manaʻo hoʻolālā PTFE) kahi e pono ai ke hoemiia ka wiliwili a me ka haahaa.

ʻO nā sila a me nā pahu

• Koi: hoʻopaʻa ʻana ma lalo o ke kaomi ʻana, ka'ikemika, kaʻa kaʻa wela.
• Ptfe: maikaʻi loa no sila kemika paʻa, Nā noho kūʻai Valve, gasts i loko o ka media hoʻomāinoino.
  E makaala: ʻO nā kahe anu PTFE - hoʻolālā no ka hoʻonohonoho ʻana a noʻonoʻo i nā apo hoʻihoʻi a i ʻole ka geometry gasketing e hōʻemi ana i ke koʻikoʻi paʻa mau..
• PEEK: hoʻohana ʻia no apo apo, apo kākoʻo mechanical, a me nā mea lawe sila kiʻekiʻe kahi e koi ʻia ai ke kūpaʻa kolo.
• Ka lula maʻamau: ʻelua mau maka hoʻopaʻa PTFE me nā mea hoʻihoʻi PEEK e hoʻohui i ka inertness kemika a me ke kūpaʻa dimensional..

ʻoihana hana kemika (loli nā loulou, Nā'āpana Valve, nā diaraphgms)

• Koi: aneane waena o keʻano kūlohelohe, pae wela, ʻano hoʻohālike o ka flange/valve.
• Ptfe ʻo ia ka paʻamau no liners, uhi hale, Nā noho kūʻai Valve; wahine puʻupaʻa a i ʻole nā ​​māka PTFE i hoʻopiha ʻia ma muli o ka abrasion a me ke kaomi.
• PEEK hiki ke hoʻohana ʻia no nā ʻāpana hana i loko o nā mea kanu kemika inā kūpono nā kemika a kiʻekiʻe nā ukana mīkini (E.g., nā kau ʻana, urowing).
• Hōʻike: e hoʻohana i nā hoʻāʻo hoʻopaʻa ʻana a me ka hoʻopaʻa ʻana i ka tensile ma kēlā me kēia media lawelawe i manaʻo ʻia a me ka mahana.

Lako uila / Rf / ʻāpana microwave

• Koi: haʻahaʻa dielectric mau, haʻahaʻa poho tangent, kū ponoʻole.
• Ptfe makemakeʻia no dielectric substrates, nā spacers coaxial, RF insulators.
• PEEK ʻae ʻia no ka hoʻokaʻawale ʻana i nā ʻāpana kūkulu kahi i ʻoi aku ka lua o nā waiwai dielectric i nā pono mechanical.

Aerospace a me nā ʻāpana mechanical wela wela

• Koi: Ke kaumaha, paʻa dimensional ma waena o ka mahana, pale pale, pale ʻana i ka lapalapa/oxidation.
• PEEK (me nā māka piha kalapona) ua hoʻohana nuiʻia no Nā pale lole, hali hale, nā pilina pili, a me nā ʻāpana i loko o nā ʻōnaehana kōkua ʻenekini.
  ʻO ka hui pū o PEEK o ka ikaika, ʻO ka hiki ke kolo haʻahaʻa a me ka wela e kūpono i ka nui o nā mokulele i loko a ma lalo o ka uhi.
• Ptfe hoʻohanaʻia no nā laina haʻahaʻa haʻahaʻa a me nā sila ma ka aerospace wahie/feed line kahi kemika inertness a me friction ka mea nui akā haʻahaʻa ka ukana.

ʻO nā mea lapaʻau a me nā implants

• Koi: Keia Riana, sterilization (Autoclave / gamma), ʻO ka paleʻana o ka momona.
• PEEK (māka lāʻau lapaʻau) ua hookumuia no nā mea implantable (Nā'āpana spinal, nā mea hana orthopedic) ma muli o ka biocompatibility a me ka modulus kokoke i ka iwi.
• Ptfe (hoʻonui ʻia ka PTFE, ePTFE) hoʻohanaʻia no grafts vascular, paʻi ʻiʻo palupalu a me kekahi mau lole implantable, akā ʻaʻole maʻamau no nā implants lawe ukana.
• Hooponopono: koho i nā mākau hoʻokō USP/ISO a mālama i ka traceability.

Meaʻai, mea kuke a me nā mea kūʻai aku

• Koi: palekana pili meaʻai, nā huakaʻi wela, hoʻomaʻemaʻe cycles.
• Ptfe ʻO nā uhi ke koho nui no ili pili ole; He mea maʻamau nā kiʻiʻoniʻoni PTFE a i ʻole ka uhi. PEEK hoʻohana ʻia ma ke ʻano ma kahi i ʻae ʻia a i ka wā e koi ʻia ai ke kūpaʻa ʻoi aku ka ʻoi aʻe.
• Nānā i ka palekana: Pono e hoʻohana ʻia nā uhi PTFE i loko o nā palena wela i ʻōlelo ʻia e pale i ka decomposition; Hāʻawi ʻo PEEK i ka paʻa autoclave / umu.

Pono & aila / nā noi ʻana i lalo

• Koi: Ka paipai, keka ao, ʻO nā wai corrosive, hoʻopihaʻia.
• PEEK (piha) hoʻohana pinepineʻia no mea packer, Nā'āpana hana, nā mea kikowaena kahi e pili ana i ka ukana a me ka lole.
• Ptfe hoʻohanaʻia no liners, sila pulu, pale kemika kahi e pale ai ka corrosion i nā koi mechanical.
• Hoʻolālā akahele: ʻoi aku paha nā koi downhole ma mua o nā māka maʻamau; e loiloi i nā ʻano ʻokoʻa PEEK kiʻekiʻe a me nā hui PTFE kūikawā.

Semiconductor, hale hana a me nā ʻōnaehana hoʻomaʻemaʻe ultra

• Koi: maʻemaʻe kemika, haʻahaʻa outgassing, ion mobility, ka maʻemaʻe ʻāpana.
• Ptfe koho pinepine ia no nā mea hoʻokele kemika, sila a me na kiwi ma muli o ka inertness kemika a me nā mea hiki ke unuhi haʻahaʻa.
  PEEK hoʻohanaʻia no mea paa hale, nā mea hoʻohui a me nā insulators kahi e pono ai ke kūpaʻa mechanical.
• ʻO ka leka uila: e mālama i nā polymers ʻelua ma nā wahi maʻemaʻe; koho haahaa-lehu, nā māka haʻahaʻa.

10. Hōʻuluʻulu Hoʻohālikelike — PEEK vs PTFE

He paʻa, 'enekinia-grade hoʻohālikelike e hōʻike ana i nā ʻokoʻa koʻikoʻi hoʻoholo ma waena PEEK (Polohana) and Ptfe (Poleterafluoes).

E hoʻohana i kēia ma ke ʻano he papa helu kūpono i ke koho ʻana i nā mea no nā ʻāpana, Aloha, loli nā loulou, nā bearings a i ʻole nā ​​mea uila.

11. Ka hopena - PEEK vs PTFE

ʻO PEEK a me PTFE nā polymers ʻenehana premium, akā hoʻoponopono lākou i nā pilikia like ʻole.

ʻO ka koho kūpono e pili ana i ka mua a me ka mea nui ma ka koi hana mua o ka ʻāpana a i ʻole ka ʻōnaehana.

• PEEK he thermoplastic hale hana kiʻekiʻe: ikaika kiʻekiʻe a ʻoʻoleʻa, kolo haʻahaʻa, ʻoi loa ke kūpaʻa dimensional i ka wela kiʻekiʻe, machinability a weldability.
  ʻO ia ka koho i makemake ʻia i ka wā e hana pono ai ka mīkini, Pono ka hoʻopaʻa ʻana i ka ukana no ka wā lōʻihi a paʻa (E.g., Nā'āpana hoʻonohonoho, nā bearings wela kiʻekiʻe, NA KEKI ANA).
• Ptfe ʻO ia ka ultra-inert fluoropolymer: kūʻokoʻa kemika, ka helu haʻahaʻa haʻahaʻa o ka friction a me nā waiwai dielectric maikaʻi loa, aka me ka ikaika mechanical haʻahaʻa a me ke kahe anu (hoka).
  ʻO ia ka mea i koho ʻia no nā sila conformable, nā mea hoʻokae kemika, nā ʻili haʻahaʻa haʻahaʻa a me nā noi dielectric RF / microwave.
• Hoʻohui lākou, ʻaʻole hiki ke hoʻololi. Hoʻohui ʻia nā ʻenehana ikaika he nui i nā mea ʻelua (E.g., ʻO nā maka hoʻopaʻa PTFE ma nā apo kākoʻo PEEK, Nā laina PTFE ma nā hale PEEK, hoʻopiha ʻia nā ʻano like ʻole o kēlā me kēia mea e hoʻopili i nā waiwai).

FaqS

Hiki ke pani ʻia ka PTFE e PEEK i nā sila?

I ka wā wale nō e koi ai ka sila i ka ʻoʻoleʻa a me ke kolo haʻahaʻa - hiki i ka PEEK ke hana i kekahi mau sila ʻenehana akā e ʻoi aku ka nui o ka friction.. No ka conformable, ʻoi aku ka maikaʻi o nā sila PTFE haʻahaʻa haʻahaʻa.

Hiki iā PEEK a me PTFE ke hoʻopaʻa ʻia?

He paʻakikī ka hoʻopaʻa ʻana i ka PTFE i kekahi mea; pono nā lāʻau lapaʻau kūikawā a me nā primers. E hoʻopaʻa paʻa PEEK i nā mea hoʻopili he nui ma hope o ka hoʻomākaukau ʻana i ka ʻili.

ʻO wai ka polymer ʻoi aku ka palekana ma nā wela kiʻekiʻe loa?

Hoʻopau hope nā mea ʻelua. Hiki i ka PEEK ke ʻae i ka wela o ka lawelawe mechanical; Hiki i ka PTFE ke ola me ka kemika ma T kiʻekiʻe akā hiki ke hoʻokuʻu i nā huahana decomposition ʻawaʻawa inā wela loa - pono ʻelua i ka hoʻokele wela..