Gịnị bụ Ptfe?
Polytetrafluoroethylene (PTFE) bụ fluoropolymer sịntetik nke tetrafluoroethylene ma bụrụkwa PFAS nke nwere ọtụtụ ojiji. Nguzogide kemịkalụ, okpomọkụ, mmiri, na eletriki dị mkpa nke PTFE na-eme ka ọ bụrụ ihe zuru oke mgbe ọ bụla ngwaahịa, ngwaọrụ, na ihe ndị mejupụtara ya kwesịrị ịdịgide ma bụrụ nke a pụrụ ịtụkwasị obi ọbụlagodi na ngwa ndị kacha sie ike. Na mgbakwunye na nke a, PTFE nwere ike ịdịgide obere okpomọkụ na iguzogide ọkụ pụrụ iche nke na-eme ka ọ bụrụ ezigbo nhọrọ maka ndepụta ngwaahịa, ihe ndị mejupụtara, na ngwa na-eto eto mgbe niile.
Gịnị bụ PVC?
PVCbụ polima sịntetik nke atọ a na-emepụta n'ọtụtụ ebe n'ụwa (mgbe e mesịrị polyethylene na polypropylene). A na-emepụta ihe dị ka tọn nde iri anọ nke PVC kwa afọ.
PVC na-abịa n'ụdị siri ike (mgbe ụfọdụ a na-akpọ RPVC) na ụdị mgbanwe. A na-eji PVC siri ike arụ ọrụ maka paịpụ, ọnụ ụzọ na windo. A na-ejikwa ya eme karama plastik, nkwakọ ngwaahịa, na kaadị ụlọ akụ ma ọ bụ ndị otu. Ịtinye plastik na-eme ka PVC dị nro ma dịkwuo mfe. A na-eji ya eme ihe na plọmbing, mkpuchi eriri eletriki, ala, akara ngosi, ndekọ phonograph, ngwaahịa a na-afụ ụfụfụ, na ihe nnọchi roba. Site na owu ma ọ bụ linen, a na-eji ya eme ihe na mmepụta ákwà.
Ntụnyere nke PVC na PTFE Anụ ahụ Njirimara
| Aha Ala | Nkeji | ABS/PVC Alloy | Jupụtara PTFE |
| Ike Okpomọkụ Pụrụ Iche | BTU/lb-°F | 0.382 |
|
| Shear Modulus | ksi |
|
|
| Ike Mwepụta Mkpakọ | psi | 3050 | 5710 |
| Oke Poisson |
|
|
|
| Dielectric Constant |
| 3.3 | 3.7 |
| Ike Dielectric | kV/n'ime | 508 | 467 |
| Ogologo oge na ezumike | % | 100 | 9.4 |
| Ike Mgbakwunye Flexural | psi | 7030 | 9820 |
| Modulu nke Elasticity | ksi | 319 | 348 |
| Ike, Rockwell R |
| 88 | 110 |
| Ike nrụgide, Kasị Elu | psi | 4030 | 6580 |
| Ike nrụgide, Mmụba | psi | 5420 | 8270 |
| Nguzogide Ọdụdọ Eletriki | ohm-cm | 1.00e+14 | 3.00e+15 |
| Njupụta | lb/na³ | 0.0423 | 0.0531 |
| Okpomọkụ Ọrụ Kachasị Elu, Ikuku | °F | 170 | 212 |
| Ọgbakọ okpomọkụ | BTU-n'ime/hr-ft²-°F | 1.87 | 1.67 |
| Ike Mgbaji | ksi-in½ |
|
Ebe a na Besteflon, anyị bụ ndị ọkachamara n'inye ngwọta PTFE ọhụrụ maka ngwa teknụzụ gị. Iji chọpụta ihe ndị ọzọ gbasara Ngwaahịa PTFE anyị, nweere onwe gị ịkpọtụrụ anyị!
Oge ozi: Ọgọst-28-2023