Kuyini i-Ptfe?
I-Polytetrafluoroethylene (I-PTFE) iyi-fluoropolymer yokwenziwa ye-tetrafluoroethylene futhi iyi-PFAS enezinhlelo zokusebenza eziningi. Ukumelana okukhulu kwamakhemikhali, izinga lokushisa, umswakama, kanye nogesi kwe-PTFE kuyenza ibe yinto efanelekile noma nini lapho imikhiqizo, amathuluzi, kanye nezingxenye kudingeka ziqine futhi zithembeke ngisho nasezinhlelweni zokusebenza ezinzima kakhulu. Ngaphezu kwalokhu, i-PTFE inesimo esiyingqayizivele sokuqina okuphansi kokushisa kanye nokumelana nomlilo okwenza kube ukukhetha okuhle kohlu olukhula njalo lwemikhiqizo, izingxenye, kanye nezinhlelo zokusebenza.
Kuyini i-PVC?
I-PVCiyi-polymer yokwenziwa yesithathu ekhiqizwa kakhulu emhlabeni yepulasitiki (ngemuva kwe-polyethylene ne-polypropylene). Cishe amathani ayizigidi ezingu-40 e-PVC akhiqizwa minyaka yonke.
I-PVC iza ngezindlela eziqinile (ngezinye izikhathi ezifushanisiwe ngokuthi i-RPVC) futhi eziguquguqukayo. I-PVC eqinile isetshenziswa ekwakheni amapayipi, iminyango namafasitela. Iphinde isetshenziswe ekwenzeni amabhodlela epulasitiki, ukupakisha, kanye namakhadi ebhange noma obulungu. Ukwengeza amapulasitiki kwenza i-PVC ithambe futhi iguquguquke kakhudlwana. Isetshenziswa ekufakweni kwamapayipi, ekufakweni kwekhebula likagesi, phansi, ezimpawini, kumarekhodi e-phonograph, emikhiqizweni efuthwayo, kanye nasezintweni ezithatha indawo yerabha. Ngokotini noma ilineni, isetshenziswa ekukhiqizweni kwendwangu.
Ukuqhathaniswa kwezakhiwo ze-PVC kanye ne-PTFE Physical
| Igama Lendawo | Amayunithi | I-ABS/PVC Alloy | I-PTFE Egcwele |
| Amandla Okushisa Aqondile | I-BTU/lb-°F | 0.382 |
|
| I-Shear Modulus | ksi |
|
|
| Amandla Okukhiqiza Okucindezelekile | i-psi | 3050 | 5710 |
| Isilinganiso sikaPoisson |
|
|
|
| I-Dielectric Constant |
| 3.3 | 3.7 |
| Amandla e-Dielectric | kV/ngaphakathi | 508 | 467 |
| Ukwelula Ngesikhathi Sokuphumula | % | 100 | 9.4 |
| Amandla Okukhiqiza Okuguquguqukayo | i-psi | 7030 | 9820 |
| I-Modulus ye-Elasticity | ksi | 319 | 348 |
| Ukuqina, uRockwell R |
| 88 | 110 |
| Amandla Okuqina, Okuphelele | i-psi | 4030 | 6580 |
| Amandla Okuqina, Ukuzivumelanisa Nezimo | i-psi | 5420 | 8270 |
| Ukumelana Nogesi | i-ohm-cm | 1.00e+14 | 3.00e+15 |
| Ubuningi | lb/in³ | 0.0423 | 0.0531 |
| Izinga Lokushisa Eliphezulu Lesevisi, Umoya | °F | 170 | 212 |
| Ukuqhuba Okushisayo | I-BTU-in/hr-ft²-°F | 1.87 | 1.67 |
| Ukuqina Kokuphuka | ksi-in½ |
|
Lapha kwa-Besteflon singochwepheshe ekuletheni izixazululo ze-PTFE ezintsha zezinhlelo zakho zokusebenza zobuchwepheshe. Ukuze uthole okwengeziwe ngemikhiqizo yethu ye-PTFE, zizwe ukhululekile ukuxhumana nathi!
Isikhathi sokuthunyelwe: Agasti-28-2023