Waa maxay Ptfe?
Polytetrafluoroethylene (PTFE) waa fluoropolymer synthetic ee tetrafluoroethylene waana PFAS oo leh codsiyo badan.Kiimikada muhiimka ah ee PTFE, heerkulka, qoyaanka, iyo iska caabbinta korantada waxay ka dhigtaa shay ku habboon mar kasta oo alaabada, agabka, iyo qaybaha ay u baahan yihiin inay noqdaan kuwo waara oo la isku halayn karo xitaa codsiyada ugu adag.Waxaa intaa dheer, PTFE waxay ku faantaa adkaysi heerkul hoose oo gaar ah iyo iska caabbinta dabka taasoo ka dhigaysa doorasho wanaagsan liiska joogtada ah ee alaabooyinka, qaybaha, iyo codsiyada.
Waa maxay PVC?
PVCwaa polymer-ka synthetic ee balaastigga ah (ka dib polyetylen iyo polypropylene) ee dunida saddexaad ee ugu ballaadhan. Qiyaastii 40 milyan oo tan oo PVC ah ayaa la soo saaraa sannad kasta.
PVC waxay ku timaadaa mid adag (mararka qaar waxaa loo soo gaabiyaa RPVC) iyo foomamka dabacsan.PVC adag waxaa loo isticmaalaa dhismaha tuubooyinka, albaabada iyo daaqadaha.Waxa kale oo loo isticmaalaa samaynta dhalooyin caag ah, baakad, iyo bangiyada ama kaadhadhka xubinnimada.Ku darida balaastikada waxay ka dhigtaa PVC jilicsan oo dabacsan.Waxaa loo isticmaalaa tuubooyinka, dahaarka fiilooyinka korantada, sagxadaha, calaamadaha, diiwaanka cod-garaafka, alaabada la buufin karo, iyo caagga beddelka ah.Iyada oo suuf ama linen, waxaa loo isticmaalaa soo saarista shiraac.
Isbarbardhigga PVC iyo PTFE Physical Properties
| Magaca Hantida | Unugyo | ABS/PVC Alloy | PTFE Buuxiyay |
| Awoodda kulaylka ee gaarka ah | BTU/lb-°F | 0.382 |
|
| Modul jeex | ksi |
|
|
| Xoogga Wax-soo-saarka Dhibban | psi | 3050 | 5710 |
| Saamiga Poisson |
|
|
|
| Dielectric Constant |
| 3.3 | 3.7 |
| Xoogga Dielectric | kV/in | 508 | 467 |
| Kordhinta xilliga Nasashada | % | 100 | 9.4 |
| Xoogga Wax-soosaarka Jilicsan | psi | 7030 | 9820 |
| Qaabka Elasticity | ksi | 319 | 348 |
| Hardness, Rockwell R |
| 88 | 110 |
| Xoog-jiidka, Ugu Dambeeya | psi | 4030 | 6580 |
| Xoogga Jilicsanaanta, Wax-soosaarka | psi | 5420 | 8270 |
| Iska caabin koronto | ah-cm | 1.00e+14 | 3.00e+15 |
| Cufnaanta | lb/in³ | 0.0423 | 0.0531 |
| Heerkulka Adeegga ugu sarreeya, Hawada | °F | 170 | 212 |
| Habdhaqanka kulaylka | BTU-gudaha/saacaddii-ft²-°F | 1.87 | 1.67 |
| Adag jabka | ksi-in½ |
|
Halkan Bestellon waxaanu ku takhasusay bixinta xalalka cusub ee PTFE ee codsiyadaada farsamo.Si aad wax badan uga ogaato Alaabtayada PTFE, xor u noqo inaad nala soo xidhiidho!
Waqtiga boostada: Agoosto-28-2023