PTFE (polytetrafluoroethylene)ma polyester (pei o PET, PBT, ma isi) o ni mea polymer eseese e lua. E iai a latou eseesega tele i le fausaga o vailaʻau, uiga faʻatinoga ma le faʻaogaina o fanua. O se fa'atusatusaga auiliili lea:
1. Fa'atulagaina o vaila'au ma le tu'ufa'atasiga
PTFE (polytetrafluoroethylene)
●Fauga: O lo'o iai se filifili kaponi atomu ma se fa'atomu fluorine ua tumu atoa (-CF₂-CF₂-), ma o se fluoropolymer.
●Fa'aaliga: O le malosi malosi o le carbon-fluorine fusi e maua ai le maualuga maualuga o vaila'au ma le tau.
Polyester
●Fauga: O le filifili autu o loʻo i ai se vaega ester (-COO-), e pei o le PET (polyethylene terephthalate) ma le PBT (polybutylene terephthalate).
●Vaega: O le ester bond e maua ai le malosi faʻainisinia lelei ma le faʻagasologa, ae o lona mautu vailaʻau e maualalo ifo nai lo le PTFE.
2. Fa'atusatusaga fa'atinoga
| Uiga | PTFE | Polyester (pei o le PET) |
| Tete'e vevela | - Fa'aaoga pea le vevela: -200°C i le 260°C | - PET: -40°C i le 70°C (umi umi) |
| Mautu o vailaau | E tetee i le toetoe lava o mea uma, alkalis ma solvents ("tupu palasitika") | Tete'e i ga'o vaivai ma alkalis, e faigofie ona pala e malosi malosi ma alkalis |
| Fa'ase'e fa'atasi | E matua maualalo lava (0.04, lubricating) | Maualuga (e mana'omia mea fa'aopoopo e fa'aleleia) |
| Malosi fa'ainisinia | Maulalo, faigofie ona fetolofi | Maualuga (E masani ona faʻaaogaina le PET i alava ma fagu) |
| mea fa'a-dielectric | Lelei (mea fa'a'ese'esega maualuga) | Lelei (ae maaleale ile susū) |
| Faigata fa'agaioiga | Faigata ona liusuavai (mana'omia le sintering) | E mafai ona tui ma extruded (faigofie ona fai) |
Fa'aoga fanua
PTFE: faʻaaogaina lautele i le aerospace, mea faʻaeletoroni, vailaʻau vailaʻau, gaosiga o meaʻai, fomaʻi ma isi fanua, e masani ona faʻaaogaina e fai ai faʻamaufaʻailoga, bearings, coatings, insulating mea, ma isi.
Polyester: e masani ona faʻaaogaina i filo ie, fagu palasitika, ata tifaga, palasitika inisinia ma isi fanua
O manatu sese masani
Faʻapipiʻi e le faʻapipiʻi: PTFE (Teflon) e masani ona faʻaaogaina i pusa e le faʻapipiʻi, aʻo le polyester e le mafai ona tatalia le kukaina o le vevela.
Fiber Field: O alava polyester (e pei o le polyester) o mea autu ia mo lavalava, maPTFE alavae fa'aaogaina mo na'o fa'amoemoega fa'apitoa (e pei o lavalava e puipuia ai vaila'au)
E faʻapefea ona faʻaaogaina le PTFE i le alamanuia meaʻai?
O le PTFE (polytetrafluoroethylene) o loʻo i ai le tele o faʻaoga i totonu o le pisinisi o meaʻai, e mafua ona o lona faʻamautuina lelei o vailaʻau, maualuga o le vevela, le faʻaogaina ma le maualalo o le faʻafefe. O loʻo taua i lalo o faʻaoga autu a le PTFE i le alamanuia taumafa:
1. Faʻapipiʻi meafaigaluega gaosi meaʻai
PTFE faʻapipiʻi e faʻaaogaina lautele i le ufiufi ma le faʻaogaina o meaʻai. O lona le faʻapipiʻi e mafai ona taofia ai meaʻai mai le pipii i luga o le masini i le taimi o le gaosiga, faʻafaigofieina le faʻamamaina ma faʻaleleia le lelei o le gaosiga. Mo se faʻataʻitaʻiga, i meafaigaluega e pei o ogaumu, vaʻa, ma faʻafefiloi, e mafai ona faʻamautinoa e le faʻapipiʻiina o le PTFE e le faʻapipiʻi meaʻai i le taimi o le gaosiga o le vevela aʻo tausia le amiosaʻo ma le lelei o meaʻai.
2. Fa'atauva'a fusipa'u ma fe'avea'i fusipa'u
PTFE-faʻapipiʻiina fusipaʻu conveyor ma conveyor fusi e masani ona faʻaaogaina i le tele o meaʻai gaosia, e pei o le kuka ma le momoliina o fuamoa, bacon, sosisi, moa, ma hamburgers. O le maualalo o le fete'ena'iga ma le maualuga o le vevela o lenei mea e mafai ai ona fa'agaoioia lelei i siosiomaga vevela maualuga e aunoa ma le afaina ai o mea'ai.
3. Fa'agaau fa'afefeteina mea'ai
PTFE hoses o loʻo faʻaaogaina lautele mo le felauaiga o meaʻai ma meainu, e aofia ai le uaina, pia, meaʻai susu, syrups ma seasonings. O lona vailaʻau faʻamalosi e faʻamautinoa e le afaina ai le lelei o oloa faʻasalalau i le vevela o le -60°C i le 260°C, ma e le faʻaalia se lanu, tofo poʻo se manogi. E le gata i lea, o faʻauʻu PTFE e fetaui ma tulaga FDA e faʻamautinoa ai le saogalemu o meaʻai.
4. Faamaufaailoga ma gaskets
PTFE faʻamaufaʻailoga ma gaskets e faʻaaogaina i fesoʻotaʻiga o paipa, valve ma faʻafefeteina foe o meaʻai gaosi meaʻai. E mafai ona latou tete'e le pala mai vaila'au eseese a'o tumau mautu i siosiomaga vevela maualuga. O nei fa'amaufa'ailoga e mafai ona puipuia lelei mea'ai mai le fa'aleagaina a'o fa'afaigofieina le fa'amamāina ma le tausiga o meafaigaluega.
5. Mea e teu ai meaai
O loʻo faʻaaogaina foʻi le PTFE i meaʻai faʻapipiʻi meaʻai, e pei o paʻu e le faʻapipiʻi paʻu, paʻu pepa tao, ma isi mea e faʻamautinoa ai e le pipii meaʻai i le taimi o le afifiina ma le kukaina, aʻo tausia le tumama ma le saogalemu o meaʻai.
6. Isi talosaga
E mafai foʻi ona faʻaaogaina le PTFE i mea faʻaoga, faʻapipiʻi pusi ma faʻainisinia vaega palasitika i le gaosiga o meaʻai, lea e mafai ona faʻaleleia ai le faʻaogaina o le ofuina ma le faʻaleagaina o meafaigaluega aʻo faʻaitiitia le tau o le tausiga.
Mafaufauga saogalemu
E ui lava o le PTFE e tele mea e sili ona lelei, e tatau lava ona e gauai atu i lona saogalemu pe a faʻaaogaina i totonu o meaʻai. E mafai e le PTFE ona tuʻuina atu le tele o kasa leaga i le vevela maualuga, o lea e tatau ai ona pulea le faʻaogaina o le vevela ma aloese mai le faʻavevelaina o le vevela umi. E le gata i lea, e taua tele le filifilia o mea PTFE e fetaui ma manaʻoga faʻatonutonu talafeagai.
Taimi meli: Mati-26-2025