Ububiko bwa fibre yububiko - busanzwe, twill, cyangwa satine - bigira ingaruka zikomeye kumiterere ya PTFE yubushyuhe bwo hejuru. Ububoshyi bwa Satin butanga imbaraga zo kurira cyane (2-3x igaragara) kandi byoroshye, nibyiza kugoreka imbaraga. Ububoshyi bwibibaya butanga icyerekezo cyiza kandi gihamye, gikwiranye na static progaramu. Twill iringaniza imitungo yose kugirango ikoreshwe muri rusange.

PTFE fiberglass kaseti isaba ibyemezo bitatu byingenzi byumutekano: UL (umutekano wamashanyarazi numuriro), FDA (kubahiriza ibiryo), na ISO 9001: 2015 (gucunga neza). Kaseti yemewe itanga imikorere ihamye, igihe kirekire cya serivisi, nigiciro gito cya nyirubwite nubwo igiciro kiri hejuru. Buri gihe ugenzure ibyemezo bitaziguye hamwe ninzego zitanga.

Imikandara ya PTFE (umukandara wa Teflon) itezimbere imirongo itunganya ibiryo binyuze mu nyungu enye zingenzi: imikorere isumba iyindi idafite inkoni (kugabanya imyanda no gufatana), kwihanganira ubushyuhe bwagutse (-100 ° C kugeza 260 ° C ituma guteka bikonjeshwa), gusukura byoroshye no kurwanya bagiteri (ubuso butari bubi, kubahiriza FDA), no kuzigama ibikorwa (gukoresha ingufu nke, ubuzima burebure). Bikwiranye nibicuruzwa bitetse, ibiryo bikonje, shokora, nibicuruzwa bifatanye.

PTFE yubushyuhe bwo hejuru ikoreshwa mubice bitatu byubuvuzi: kurinda ibikoresho byo kuboneza urubyaro (tray autoclave tray, gupakira ubushyuhe bwa kashe), kuvura ibikoresho byo hejuru (gutwika-friction nkeya, kubika amashanyarazi), hamwe nibikoresho byatewe (graft vasculaire, suture). Biocompatibilité igenzurwa hakoreshejwe ISO 10993, naho FDA 21 CFR 177.1550 ishyiraho umutekano wibikoresho fatizo.

Uburinganire bwimyenda ya PTFE yubushyuhe bwo hejuru bugenwa nimpamvu enye: gutondekanya (ingano ya 0.15-0.35 μ mm, viscosity, ibintu bikomeye), gutwikira & gucumura (gutwikira icyuma gikundwa kuburinganire), ubuziranenge bwibisobanuro (kuboha, kubanza kubivura), hamwe nibidukikije (20-25 ° C, <60% RH). Dip + blade ikomatanyirijwe hamwe iringaniza kwinjira no kugaragara neza.

Ubuvuzi bwa PTFE kubwo guhuza bifashisha uburyo bubiri bwingenzi: gushonga ubushyuhe bwo hejuru (guhangana nikirere cyiza, imbaraga za MPa 9.5 hamwe na agent ihuza, ariko ikarekura imyuka yubumara) hamwe na sodium-naphthalene (5 MPa guhita ifata, idirishya ryamasaha 24-48, imyanda iteje akaga). Hitamo ukurikije kugenzura ibidukikije nigihe kirekire nibikorwa bigufi.

Gusukura neza no kubungabunga byongera ubuzima bwimyenda yubushyuhe bwo hejuru. Isuku nyuma yo kuyikoresha na nyuma yo gukonja. Koresha umwanda woroshye, ibikoresho bidafite aho bibogamiye, cyangwa inzoga kubirindiro. Ntuzigere ukoresha acide ikomeye / alkalis, byakuya, cyangwa ibyuma bisakara. Amavuta ya silicone asanzwe amavuta agabanya kwambara. Kurikiza aya mabwiriza kugirango wirinde kwangirika.

PTFE yubushyuhe bwo hejuru ifite imbaraga zo kurwanya imirasire ya ionizing. Kuri 1 kGy gamma yerekanwe gusa, imbaraga zingana ziragabanuka kugeza ~ 25% byumwimerere. Irakwiriye gusa kubidukikije bikabije (ibiryo / sterisizione yubuvuzi <10 kGy). Ku nganda za kirimbuzi cyangwa icyogajuru, koresha polyimide cyangwa PEEK aho.

Gupima ubwiza bwa PTFE burimo ibipimo bitandatu byingenzi: ibirimo bikomeye (60 ± 2% kuri T / FSI 067-2021), pH (9.0-11.0), ingano yubunini bwagabanijwe (laser diffaction / DLS), viscosity (12-30 mPa · s kuri 25 ° C), gutuza (centrifugal, ubushyuhe, gukonjesha-thaw), no kugaragara. Aka gatabo gakubiyemo uburyo busanzwe bwo gupima kuri buri kintu.

Kuri kaseti ya PTFE yubushyuhe bwo hejuru yibiza igihe kirekire, substrate ya PTFE ikomeza kuba inert ya chimique, ariko igipande gifatika nikintu kidakomeye. Amazi agabanya silicone PSA; amazi yumunyu yihutisha ruswa. Ku miti ikaze, fluorosilicone cyangwa perfluoropolyether yifata - cyangwa kaseti ya PTFE idafite imiti - irakenewe. Gutakaza imbaraga zigera kuri 40% nyuma yamasaha 48 mumazi.