Chii chinonzi Ptfe?
Polytetrafluoroethylene (PTFE) i fluoropolymer yakagadzirwa ne tetrafluoroethylene uye iPFAS ine mashandisirwo akawanda. Kusasimba kwemakemikari, tembiricha, hunyoro, uye magetsi kwePTFE kunoita kuti ive chinhu chakanaka pese painofanira kugara kwenguva refu uye yakavimbika kunyangwe mukushandiswa kwakaoma. Pamusoro peizvi, PTFE ine kugara kwenguva refu uye kusasimba kwemoto izvo zvinoita kuti ive sarudzo yakanaka kune runyorwa rwezvigadzirwa, mashandisirwo, uye mashandisirwo ari kuramba achikura.
Chii chinonzi PVC?
PVCndiyo polymer yepurasitiki yakagadzirwa nepurasitiki inogadzirwa zvakanyanya pasi rose (inotevera polyethylene ne polypropylene). Matani angangoita mamiriyoni makumi mana ePVC anogadzirwa gore rega rega.
PVC inouya yakasimba (dzimwe nguva ichipfupikiswa seRPVC) uye inochinjika. PVC yakasimba inoshandiswa pakuvaka mapaipi, magonhi nemahwindo. Inoshandiswawo pakugadzira mabhodhoro epurasitiki, kurongedza, uye makadhi ebhangi kana ekuva nhengo. Kuwedzera mapurasitiki kunoita kuti PVC ive nyoro uye inochinjika. Inoshandiswa mukugadzira mapaipi, kuputira tambo dzemagetsi, pasi, zviratidzo, marekodhi egiramufomu, zvigadzirwa zvinofefeterwa, uye mune zvinotsiva rabha. Nedonje kana jira, inoshandiswa pakugadzira kanivhasi.
Kuenzanisa kwePVC nePTFE Physical Properties
| Zita rePfuma | Zviyero | ABS/PVC Alloy | PTFE Yakazadzwa |
| Kugona Kupisa Kwakakwana | BTU/lb-°F | 0.382 |
|
| Shear Modulus | ksi |
|
|
| Simba reKudzvanya | psi | 3050 | 5710 |
| Chiyero chaPoisson |
|
|
|
| Dielectric Constant |
| 3.3 | 3.7 |
| Simba reDielectric | kV/mukati | 508 | 467 |
| Kureba paKuzorora | % | 100 | 9.4 |
| Simba reKubereka Rinochinjika | psi | 7030 | 9820 |
| Modulus yeElasticity | ksi | 319 | 348 |
| Kuomarara, Rockwell R |
| 88 | 110 |
| Simba Rokusimba, Rakakosha | psi | 4030 | 6580 |
| Simba reKusimba, Kubudirira | psi | 5420 | 8270 |
| Kuramba kweMagetsi | ohm-cm | 1.00e+14 | 3.00e+15 |
| Kuwanda kwevanhu | lb/mu³ | 0.0423 | 0.0531 |
| Tembiricha Yepamusoro Yebasa, Mhepo | °F | 170 | 212 |
| Kufambisa kwekupisa | BTU-in/hr-ft²-°F | 1.87 | 1.67 |
| Kusimba Kwekutyoka | ksi-in½ |
|
Pano paBesteflon tiri nyanzvi mukupa mhinduro dzePTFE itsva dzekushandisa hunyanzvi hwako. Kuti uwane rumwe ruzivo nezvezvigadzirwa zvedu zvePTFE, sununguka kutibata!
Nguva yekutumira: Nyamavhuvhu-28-2023