Ptfe ke Eng?
Polytetrafluoroethylene (PTFE) ke fluoropolymer ea maiketsetso ea tetrafluoroethylene mme ke PFAS e nang le lits'ebetso tse ngata.PTFE's bohlokoa lik'hemik'hale, mocheso, mongobo, 'me ho hanyetsa motlakase e etsa hore e be sesebediswa se loketseng neng kapa neng ha lihlahisoa, lisebelisoa le likarolo li hloka ho tšoarella le ho ts'epahala esita le lits'ebetsong tse thata ka ho fetisisa.Ka holim'a sena, PTFE e ithorisa ka mokhoa o ikhethang oa ho tšoarella ha mocheso o tlase le ho hanyetsa mollo o etsang hore e be khetho e ntle bakeng sa lethathamo le ntseng le hōla la lihlahisoa, likaroloana le lisebelisoa.
PVC ke eng?
PVCke polymer ea maiketsetso ea boraro lefatšeng ka bophara e hlahisoang ka bongata (ka mor'a polyethylene le polypropylene). Ho etsoa lithane tse ka bang limilione tse 40 tsa PVC selemo le selemo.
PVC e tla ka mokhoa o thata (ka linako tse ling e khutsufatsoa e le RPVC) le mefuta e bonolo.PVC e thata e sebelisoa kahong ea liphaephe, mamati le lifensetere.E boetse e sebelisoa ho etsa libotlolo tsa polasetiki, ho paka, le likarete tsa banka kapa tsa botho.Ho eketsa li-plasticizers ho etsa hore PVC e be bonolo hape e tenyetsehe haholoanyane.E sebelisoa ho kenya lipeipi tsa metsi, ho kenya lithapo tsa motlakase, fatše, lipontšong, lirekotong tsa keramafono, lihlahisoa tse nang le moea o fokang, le linthong tse ling tsa rabara.Ka k'hothone kapa line, e sebelisoa ho hlahisa seile.
Papiso ea PVC le PTFE Physical Properties
| Lebitso la Thepa | Diyuniti | ABS / PVC motsoako | PTFE E Tlatsitse |
| Bokhoni bo khethehileng ba Mocheso | BTU/lb-°F | 0.382 |
|
| Shear Modulus | ksi |
|
|
| Matla a Puno a Khatellang | psi | 3050 | 5710 |
| Karolelano ea Poisson |
|
|
|
| Dielectric Constant |
| 3.3 | 3.7 |
| Matla a Dielectric | kV/ka | 508 | 467 |
| Elongation at Break | % | 100 | 9.4 |
| Flexural chai Matla | psi | 7030 | 9820 |
| Modulus ea Elasticity | ksi | 319 | 348 |
| Hardness, Rockwell R |
| 88 | 110 |
| Matla a Tensile, a ho qetela | psi | 4030 | 6580 |
| Matla a Tensile, Kotulo | psi | 5420 | 8270 |
| Ho hanyetsa Motlakase | ohm-cm | 1.00e+14 | 3.00e+15 |
| Botenya | lb/ka³ | 0.0423 | 0.0531 |
| Mocheso o Moholo oa Tšebeletso, Moea | °F | 170 | 212 |
| Thermal Conductivity | BTU-in/hr-ft²-°F | 1.87 | 1.67 |
| Ho thatafala ha Fracture | ksi-ka½ |
|
Mona ho Besteflon re litsebi tsa ho fana ka litharollo tse ncha tsa PTFE bakeng sa lits'ebetso tsa hau tsa tekheniki.Ho tseba haholoanyane ka Lihlahisoa tsa rona tsa PTFE, ikutloe u lokolohile ho ikopanya le rona!
Nako ea poso: Aug-28-2023