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.Dusha sare ee tan, PTFE siligga dahaarka leh 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.
Polyurethane (PUR iyo PU) waa polymer ka kooban unugyo organic ah oo ay ku biireen isku xirka carbamate (urethane).Halka polyurethane intooda badani ay yihiin polymers-ku-dhejinta kuwaas oo aan dhalaalin marka la kululeeyo, polyurethane heerkulbeeg ah ayaa sidoo kale la heli karaa.
Polyurethane polymers ayaa dhaqan ahaan iyo inta badan lagu sameeyay ka falcelinta di- ama polyisocyanate leh polyol.Labada isocyanates iyo polyols-ka loo isticmaalo samaynta polyurethane waxay ka kooban yihiin, celcelis ahaan, laba ama in ka badan oo kooxood oo shaqeynaya molecule kasta.
| Magaca Hantida | Unugyo | ABS/Polyurethane Alloy | Acetal Copolymer, PTFE Buuxiyay |
|---|---|---|---|
| Awoodda kulaylka ee gaarka ah | BTU/lb-°F | 0.359 | |
| Modul jeex | ksi | ||
| Xoogga Wax-soo-saarka Dhibban | psi | 5710 | |
| Saamiga Poisson | |||
| Dielectric Constant | 3.7 | ||
| Xoogga Dielectric | kV/in | 467 | |
| Kordhinta xilliga Nasashada | % | 250 | 9.4 |
| Xooga Soosaarka Jilicsan | psi | 9820 | |
| Qaabka Elasticity | ksi | 63.8 | 348 |
| Hardness, Rockwell R | 110 | ||
| Xoog-jiidka, Ugu Dambeeya | psi | 3860 | 6580 |
| Xoogga Jilicsanaanta, Wax-soosaarka | psi | 3550 | 8270 |
| Iska caabin koronto | ah-cm | 3.00e+15 | |
| Cufnaanta | lb/in³ | 0.0397 | 0.0531 |
| Heerkulka Adeegga ugu sarreeya, Hawada | °F | 130 | 212 |
| Habdhaqanka kulaylka | BTU-gudaha/saacaddii-ft²-°F | 1.32 | 1.67 |
| Adag jabka | ksi-in½ |
Waqtiga post: Dec-16-2017