Chii chinonzi ptfe (polytetrafluorootheryle)

Chii chinonzi ptfe (polytetrafluorohyle)?

Ptfe PolytetraFluoroethyle is a high-pread-preal-performentional fluoropolinymer yakaumbwa ne carbon maatomu uye fluorine maatomu. Fluoropolysmers iboka revapurasitiki ine huwandu hwakawanda hwezvivakwa uye zvakanaka. Ptfe ndeimwe yakadaro Fluorolmymy mutero ane zvachose zvachose yakandoshora boka reFluoropolymer uye akaisa nzira yeiyo dzakasiyana siyana dzekushandisa.

Imwe yezvinhu zvinowanzoitika zvezvinhu zvePTFE inosanganisira isina-tsvimbo machira ekicheni cookware. Nekuda kwekusarudza kwayo, muchikamu nekuda kwesimba reCarbon-Fluorine Chisungo, inowanzoshandiswa kugadzira mapepa nemidziyo yemakemikari ekushanda uye anokanganisa.

Ptfe yakagadzirwa sei?

Ptfe inogadzirwa yakawanda kunge chero imwe polymer. Iyo yakagadzirwa neyemahara yePolymerization tekinoroji inoshandisa tfe yekuwedzera polymerization mune batch maitiro mune mahedhiyo efaini.

Chimiro chemakemikari che ptfe chakafanana ne polyethylene; Musiyano wakakura chete ndewekuti maatomu maatomu akatsiviwa zvachose neFluorine. Nekudaro, pe uye ptfe vakagadzirirwa nenzira dzakasiyana kwazvo.

Saizi yakakura yeFluorine maatomu anoumba yunifomu, ichiramba ichipoterera kabhoni-kabhoni zvisungo, ichipa iyo molecule ine mhinduro yakanaka, kuita kwemagetsi, uye kugadzikana.

Hunhu uye kuita kwe ptfe

PTFE inouya mumatatu makuru mafomu-granules, kuparadzaniswa kwemvura-mvura, uye zvinhu zvakanaka.

Granular PTFE zvinhu zvinogadzirwa nekumiswa Polymerization mune yemvura yepakati uchishandisa zvishoma kana kuti hapana anopararira. Granular PTFE zvinhu zvinonyanya kushandiswa mukumanikidza, zvichimanikidza kudzvanya uye kupfava nzira dzekunze.

Yemvura-yakavakirwa PTFA kupararira Shandisa iyo yakafanana mvura-yakavakirwa polymerization ine zvimwe zvinopararira uye kushushikana. Kuparadzirwa kwemvura-kwakavakirwa kunonyanya kushandiswa mumatombo uye mafirimu ekukanda firimu.

Yakapfeka yakajeka ptfe idiki diki chena inogadzirwa neyekudzora emulsion polymerization. Yakanaka PTFE POWOD inogona kuongororwa muzviputi kuburikidza neAnte Extrusion kana Kuwedzera kuti uvandudze kupfeka kupfeka.

Zvimwe zvisina kujairika zvivakwa zvePTFE zvinosanganisira kupokana kwakanyanya uye kwakadzika kwekushisa, kwemakemikari kuwanda, uye kusanzwisisika. .

PTFE ndeimwe yezvinhu zvakavimbika zvakanyanya kana zvasvika pakurwisa kwemakemikari. Izvo zvinongorwiswa chete nelkali alkali simbi, marara emarara akadai saClline Trifluoride (CLFLUERIDE (CLFLUDIE) uye Oxygen Difioride (of2), uye gaseous Fluorine pakupisa kwakanyanya.

Zvivakwa zvePTFI ZVINOGONESA ZVINOGONESESESESESESESESESESESESESI, Kuwedzera mafirita kunoratidzwa kuve nzira inobudirira yekukunda chipingamupinyi ichi. Mukati mayo akajairwa tembiricha renji, PTFE inoratidzira zvimwe zvinobatsira michina. Zvivakwa izvi zvinokanganiswa zvakare nekugadzirisa kusiyana kwakadai sekuchinjisa tembiricha, kufungidzira kudzvinyirira, etc.

PTFE ine yakanyanya kunaka yemagetsi insulation gadziriso, yakaderera dielectric inogara ichisimbisa uye insulation inomira voltage. Iyo yakaderera kwazvo dielectric inogara ichiramba (2.0) mhedzisiro yeiyo yakaoma symmetrical chimiro cheMacRomolecules.

Pfuti yePTFE inoratidzawo zvinhu zvakanaka zvekupisa, pasina kusvibiswa kwakakosha pazasi 440 ° C.

Iyo zvakare inorwiswa nekushatiswa kwemhepo uye radiation, kutanga padhesi ye0.02 mrad.

Zvakaipa zvePTFE zvinhu

Zvinyakare zvePTFE zvinhu hazvisi pasina mamwe madhiragi. vari:

Creep uye pfeka zvakadzama

Izvo hazvigone kuongororwa nenzira dzekugadzirisa nyika, uye nzira dzakakodzera dzinogona kazhinji dzinowanzove dzisina kujairika uye dzinogona kuitika.

Kuoma mukujoinha

Yakakwira dimensional shanduko pedyo negirazi transition tembiricha.

Low Radiation Kudzivisa

Iyo inokanganisa uye inogona kuburitsa mafuru ane chepfu.

Kukosha kwevakadzi uye vanowedzera kuPTFE

Kuwedzerwa kwevakadzi uye vanowedzera vanogona kugadzirisa zvakanyanya manhamba ePTFE, kunyanya kukwira uye kupfeka mitengo. Inowanzoshandiswa mafirita inosanganisira simbi, kabhoni, girazi fiber, kabhoni fiber, graphite, bronze, simbi, nezvimwe.

Girazi fiber : Kuwedzera kwaro kunozovandudza iyo yekukanda uye kupfeka zvivakwa zve ptfe nekukanganisa kupisa kwayo uye kwakanyanya kupisa. Pamusoro pezvo, magirazi akazadzwa-makomputa anoita zvakanaka mune oxidiing nharaunda.

Carbon Fiber: Carbon fiber yakakosha kuderedza kukanda, kuvandudza kuomarara, kuwedzera kuchinjika uye compressive modulus. PTFE yakasanganiswa ne carbon fiber compound ine yakakwira inobata conders uye yakaderera coefficient yekuwedzera kwekuwedzera. Carbon fiber is inert kune yakasimba alkalis uye hydrofluorgic acid (girazi fiber inodzivirira kune ese acids). Izvi zvikamu zvakanakira kugadzira zvikamu zvemotokari zvakadai sekuvhundutsa zvinobata.

Kabhoni: kabhoni seyakawedzera inobatsira kuderedza kudzikama, kuwedzera kuomesa, uye kuvandudza iyo inobata iyo ptfe. Mhedzisiro yakafanana inogona kuwanikwa nekusanganisa ptfe uye graphite uye kuwedzera kupfeka kupokana kwekabhoni-yakazadzwa. Iyi misxture yakanakira kushandiswa zvisina mwero kwakadai senge piston zvindori mukumanikidza makona.

Bronze-Yakazara PTFE: Iyi denderedzwa ine yakanaka yekukara uye yemagetsi inonhuwirira, ichiita kuti zvive zvakanaka kune zvinoshandiswa zvinoiswa pasi pemitoro yakanyanya uye tembiricha.

Zvakanakira zvekuwedzera mafirita

Vafashiri / vanowedzera vanokosha kuti vawedzere porosen yeiyo ptfe compound uye saka inobata iyo yemagetsi zvivakwa - inoderedza iyo dielectric simba uchiwedzera iyo difectric nguva dzose uye kusagadzikana chinhu.

Mafirita anogona kuvandudza zvakanyanya kuita kwe ptfe pane ese ekumusoro uye akaderera tembiricha.

Shanduko mune zvemakemikari zvivakwa zvinoenderana chaizvo nerudzi rwekuwedzera rwakashandiswa, zvisinei. Kazhinji, zvinosiya zvakanaka zvakanaka.

PTFE ZVINHU

Kazhinji, kufungidzira Thermoplastics kunoshandiswa mukunyorwa-mashandiro emabasa epamusoro uye zvakanyanyisa kupisa, kupisa kwemakemikari. Heano mamwe ezvakanyanya kushandiswa kwePTFE:

Injiniya - fani, isina kukwana nzvimbo, zvigaro zvigaro, plugs, fittings, macves uye mapombi nenhamba.

Medical - Mwoyo matamba, makadhi echikadzi, ligament kutsiva.

Indasitiri yemakemikari - kuunganidza mapombi, difrars, everrears, kupisa kwenyika, autoclAcclange, maitiro ekugadzirisa, matangi ekuchengetedza, midziyo, nezvimwe.

Zvemotokari - Stem Zvisimbiso, Shaft Zvisimbiso, Gasiketi, O-Lings, mafuta hose zvigunwe, zvinofambisa simba, kutapurirana, uye zvimwe.

Magetsi nemagetsi - zvinoshanduka-chinja wedunhu wedunhu, magetsi ekusimbisa, nezvimwe.

Kwakanakisa tekinoroji yekugadzirisa PTFE

PTFE YEMAHARA YEMAHARA POLYMER Chain Chenongedzo inoita kuti iite zvakanyanya kuitisa nzira uchishandisa nzira dzechinyakare dzakabatanidzwa nekuumbwa. Zvakadaro, yakanyanya kunyima melt viscosity uye yakakwira yekunyungudutsa tembiricha haina kubatsira. Iyo yakakodzera kugadzirisa tekinoroji yekubata poda poda metallurgy yakapihwa zvakanaka ptfe.

Kuchinjisa, kumanikidza kuumba, kudzvanya, kusimuka kana kusimuka kana kusimuka, kupisa, kukwikwidza, kwekunze kwekutangisa pwere pane zvakakosha michina.

Namatira Etstlusion Mixes PTFE neHydrocarbons, iyo inoshandiswa kuti iite tepi, pombi uye waya insulation. Hydrocarbons vanobva vatendeuka pamberi pechikamu.

Kushanda -500 ° C kusvika 260 ° C.

FAQ

1. Ko polytetrafluorooteroetyyleyle inokonzeresa cancer?

pindura. Ptfe yakaratidzwa kuve ine chepfu kuhutano hwevanhu nekuti ine carcinogen inonzi Pfoa. Nekudaro, hapana chikonzero chekunetseka sePTFE isina-tsvimbo machira hazvichazovi nechinhu ichi.

2. Chii chinonzi ptfe pombi chinoshandiswa?

pindura. PTFE Tubing inonyanya kushandiswa seBaroratori tubing, uko kupokana nemakemikari uye kuchena kwakanyanya kukosha. PTFE ine yakanyanya kuderera kuwiriranwa uye inozivikanwa seimwe ye "zvinhu zvinotsauka" zvinozivikanwa.

3. Ndeupi mhando yepurasitiki iri ptfe?

pindura. PTFE inhetemmeri yeThellmer iyo iri fluoropolymer yakaumbwa necarbon maatomu uye fluorine maatomu.

4. Ndeipi kushandiswa kwePTFE Bhodhi?

pindura. Mashiti ePTFE anoshandiswa mune dzakasiyana siyana dzekushandisa senge ptfe yakawedzera gasi uye ptfe packing. Iyo ine simba rakanakisa kumagasi, mvura, makemikari, mafuta nemafuta.