Nubwo PTFE (polytetrafluoroethylene) naePTFE(polytetrafluoroethylene yagutse) ifite ishingiro rimwe rya shimi, ifite itandukaniro rinini mu miterere, imikorere n'aho ikoreshwa.
Imiterere y'ibinyabutabire n'imiterere y'ibanze
PTFE na ePTFE byombi bikozwe muri polymeri biva kuri tetrafluoroethylene monomers, kandi byombi bifite formula ya chemical (CF₂-CF₂)ₙ, idafite imiti myinshi kandi irwanya ubushyuhe bwinshi. PTFE ikorwa no gutwika ubushyuhe bwinshi, kandi imiyoboro ya molekile itunganijwe neza kugira ngo ikore imiterere ikomeye kandi idakoresha imyenge. ePTFE ikoresha uburyo bwihariye bwo kurambura kugira ngo PTFE ikore fibre ku bushyuhe bwinshi kugira ngo ikore imiterere y'imyenge ifite imyenge ifite imyenge ya 70%-90%.
Kugereranya imiterere ifatika
| Ibiranga | PTFE | ePTFE |
| Ubucucike | Hejuru (2.1-2.3 g/cm³) | Hasi (0.1-1.5 g/cm³) |
| Ubushobozi bwo kwihanganira | Nta kwinjira kw'amazi (kuringaniye cyane) | Uruhu rworoshye rwo kwinjira (imiyoboro mito ituma umwuka ukwirakwira) |
| Guhindura imiterere | Ikomeye kandi irakomeye cyane | Ubworoherane bwinshi n'ubudahangarwa |
| Imbaraga za mekanike | Ikomeye cyane, irwanya amarira make | Ubudahangarwa bw'amarira bwazamutse cyane |
| Ubwinshi bw'amabara | Nta myenge | Ubwinshi bw'amabara bushobora kugera kuri 70%-90% |
Ibiranga imikorere
●PTFE: Idafite ubushyuhe bwinshi kandi irwanya aside ikomeye, alkali zikomeye n'ibintu biyungurura ibinyabuzima, ifite ubushyuhe buri hagati ya -200°C na +260°C, kandi ifite dielectric constant iri hasi cyane (hafi 2.0), bigatuma ikwiriye gukingira amashanyarazi mu buryo bwa frequency nyinshi.
● ePTFE: Imiterere y'imyenge mikorobe ishobora kugira ubushobozi bwo guhumeka no kudahumeka (nk'ihame rya Gore-Tex), kandi ikoreshwa cyane mu gutera imiti (nk'uduce tw'imitsi). Imiterere y'imyenge ikwiriye gufunga gaskets (isubira inyuma nyuma yo gukanda kugira ngo yuzuze icyuho).
Ingero zisanzwe zo gukoresha
● PTFE: Ikwiriye gukoreshwa mu gukingira insinga z'ubushyuhe bwinshi, gusiga amavuta, imiyoboro y'imiyoboro ya shimi, n'imiyoboro y'amashanyarazi ifite isuku nyinshi mu nganda za semiconductor.
● ePTFE: Mu gice cy'insinga, ikoreshwa nk'urwego rwo gukingira insinga z'itumanaho zikoresha itumanaho ryihuse, mu rwego rw'ubuvuzi, ikoreshwa mu mitsi y'amaraso y'ubukorano n'imigozi, naho mu rwego rw'inganda, ikoreshwa mu gukwirakwiza lisansi ya protoni n'ibikoresho byo kuyungurura umwuka.
PTFE na ePTFE buri kimwe gifite ibyiza byacyo. PTFE ikwiriye ahantu hashyuha cyane, umuvuduko mwinshi, n'ahantu hashobora kwangirika bitewe n'uko idashobora gushyuha cyane, idashobora gushyuha, ndetse n'uburyo bworoshye bwo gukurura ibintu; ePTFE, hamwe n'uburyo bworoshye bwo koroha, ubushobozi bwo kwinjira mu mwuka, no kuba ikora neza mu nganda zikora imashini, zitunganya, kandi zifunga ibintu mu buryo budasanzwe. Guhitamo ibikoresho bigomba kugenwa hashingiwe ku byo umuntu akeneye mu buryo bwihariye bwo kubikoresha.
Ni izihe ngamba za ePTFE mu rwego rw'ubuvuzi?
ePTFE (polytetrafluoroethylene yagutse)ikoreshwa cyane mu buvuzi, ahanini bitewe n'imiterere yayo yihariye y'imikorobe, ubushobozi bwayo bwo guhuza n'ibinyabuzima, ubushobozi bwayo bwo kudahumanya, kudatuma ibintu birushaho gutera kanseri. Izi ni zo ngingo z'ingenzi ikoreshwa:
1. Umutima n'imitsi
Imitsi y'amaraso y'ubukorano: ePTFE ni yo ikoreshwa cyane mu gukora imitsi y'amaraso y'ubukorano, ingana na 60%. Imiterere yayo ifite imyenge mito ituma uturemangingo tw'umubiri w'umuntu n'imitsi y'amaraso bikuriramo, bigatuma habaho isano iri hagati y'uturemangingo tw'umubiri, bityo bikanoza umuvuduko wo gukira no kuramba kw'imitsi y'amaraso y'ubukorano.
Igiti cy'umutima: gikoreshwa mu gusana ingingo z'umutima, nka pericardium. Igiti cy'umutima cya ePTFE gishobora gukumira gufatana hagati y'umutima n'ingingo z'umutima, bikagabanya ibyago byo kubagwa bwa kabiri.
Istent y'imitsi: ePTFE ishobora gukoreshwa mu gukora irangi rya stent z'imitsi, kandi ubushobozi bwayo bwo guhuza neza n'imikorere yayo bifasha kugabanya ububyimbirwe na thrombosis.
2. Kubaga pulasitiki
Implants zo mu maso: ePTFE ishobora gukoreshwa mu gukora ibikoresho bya pulasitiki byo mu maso, nka rhinoplasty na fillers zo mu maso. Imiterere yayo ifite imyenge mito ifasha gukura kw'ingingo no kugabanya kwangwa.
Implants zo mu magufwa: Mu rwego rw'ubuvuzi bw'amagufwa, ePTFE ishobora gukoreshwa mu gukora implants zo mu magufwa, kandi ubushobozi bwayo bwo kwangirika no kuba ikora neza bifasha kongera igihe cyo gukora implants.
3. Izindi porogaramu
Uduce twa Hernia: Uduce twa Hernia twakozwe muri ePTFE dushobora gukumira ko hernia yongera kugaruka, kandi imiterere yayo ifite imyenge ifasha guhuza ingirangingo.
Imisumari yo kwa muganga: Imisumari ya ePTFE ifite ubushobozi bwo koroha no gukomera, ibyo bikaba bishobora kugabanya gufatana kw'ingingo nyuma yo kubagwa.
Uturinda bw'umutima: ePTFE ishobora gukoreshwa mu gukora uturinda bw'umutima, kandi kuramba kwayo no kuba ikora neza bifasha kongera igihe cy'imikorere y'uturinda bw'umutima.
4. Gusiga ibikoresho by'ubuvuzi
ePTFE ishobora kandi gukoreshwa mu gutwikira ibikoresho by'ubuvuzi, nka catheters n'ibikoresho byo kubaga. Ifite ingano ntoya yo gukururana no guhuza umubiri bifasha kugabanya kwangirika kw'ingingo mu gihe cyo kubaga.
Igihe cyo kohereza: 27 Mata 2025