Imyenda yubushyuhe bwo hejuru ya PTFE (fiberglass ya PTFE) ni nziza kumukandara utanga ibiryo kubera ubushyuhe bwayo 260 ° C, -70 ° C ubukonje bukabije, ubuso butari inkoni, hamwe na FDA. Ibyingenzi byingenzi: amashyiga yimigati (ibisuguti, umutsima, pizza), ibyokurya bikaranze, imirongo ikonjesha bombo, tunel ikonjesha, ibyuma bifata ubushyuhe, hamwe no kuzinga. Kugabanya imyanda nigihe cyo gukora isuku.

Ibikoresho byo kurangiza bikoreshwa mubitambaro bya fiberglass mbere yo gutwikira PTFE nibyingenzi mubikorwa bya nyuma bya PTFE. Ibikoresho bifata organosilane birema ibiraro bya molekuline hagati ya fibre yikirahure idasanzwe na PTFE kama, bikongerera imbaraga ibishishwa kuva kuri <2 N / cm kugeza 4-8 + N / cm. Kuvura neza kandi byongera imbaraga zo kurwanya ubushyuhe (260 ° C +), imikorere ya dielectric, hamwe no kurwanya imiti. Imyenda itavuwe iganisha ku gusibanganya, kubyimba, no kubaho igihe gito.

Intambara hamwe nubudodo bwimyenda ya fiberglass igena imikorere ya PTFE yubushyuhe bwo hejuru. Ubucucike buri hejuru bwongera imbaraga zingirakamaro hamwe nubuso bworoshye ariko bikagabanya imbaraga zamarira (inverted U-curve), guhinduka, no kwinjirira. Ubucucike bwiza buringaniza kwinjira, kurwanya amarira, guhinduka, no kurangiza hejuru. Ubucucike buke bukwiranye no kugonda; ubucucike bukabije kubutari inkoni.

Calendering - gukanda umwenda ushyizweho na PTFE hagati yindorerwamo zishyushye zishyushye kuri 360-380 ° C - uhindura kuburyo bugaragara imiterere yimiterere, kurekura ibintu, kudahinduka, hamwe nubukanishi. Igabanya ubukana kuva kuri Ra 0.5-1.0 mkm kugeza kuri <0,05 mm, ifunga pinholes, itezimbere imyambarire, ariko igabanya imbaraga zamarira no guhinduka. Ibyingenzi kurekura imirongo hamwe no gukwirakwiza amashanyarazi.

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.

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.

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.

Imyenda ya PTFE yubushyuhe bwo hejuru hamwe nigitambara cya silicone byombi bikoresha umwenda wa fiberglass nkibanze ariko bitandukanye mubikoresho byo gutwikira (PTFE resin vs silicone rubber). PTFE irusha abandi inkoni, kwambara, no kurwanya imiti igera kuri 260 ° C. Umwenda wa Silicone utanga ibintu byoroshye guhinduka, kubika amashanyarazi, no kurwanya umuriro (kugeza kuri 230 ° C). Hitamo ukurikije ibyo ushyira imbere.

Imyenda ya PTFE yubushyuhe bwo hejuru (PTFE membrane material) ni ihitamo ryiza kubwubatsi bubi. Ibyiza byingenzi: ubuzima bwimyaka 30+ yo hanze, kwisukura hejuru (amazi yimvura yoza umwanda), kohereza urumuri rworoshye (6-13%), Urwego rwumuriro A, nimbaraga zisa nicyuma munsi ya 1.5 kg / m². Ikoreshwa muri stade, ibibuga byindege, ninyubako zishushanyije kwisi yose.

Imyenda ya PTFE yubushyuhe bwo hejuru itanga imiti idasanzwe yo kurwanya imiti, irwanya aside ikomeye, alkalis, ibishishwa kama, hamwe na gaze yangirika. Iyi ngingo irambuye ibintu birwanya imbaraga zayo, imbogamizi (ibyuma bya alkali byashongeshejwe, imiti ikomeye ya fluorine), nibintu byingenzi nkubushyuhe, kwibanda, hamwe no guhangayika.