Imyenda ya PTFE yubushyuhe bwo hejuru ikomeza amashanyarazi meza kuva kuri -180 ° C kugeza kuri 260 ° C: kurwanya ubukana> 10¹³ Ω · cm kuri 200 ° C, dielectric ihoraho kuri 2.0-2.1. Hejuru ya 260 ° C, PTFE yoroshye, ibora hejuru ya 327 ° C, itakaza ubwishingizi burundu. Munsi ya 0 ° C, insulasiyo iratera imbere ariko gutwikira biba byoroshye. Guma muri 260 ° C kugirango ukore neza.

Imyenda ya PTFE yubushyuhe bwo hejuru (PTFE isize fiberglass) nibyiza kumukandara utanga ibiryo bitewe nubushyuhe bwa 260 ° C, -70 ° C ubukonje bworoshye, hejuru yinkoni, hamwe no kubahiriza 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.

Calendering - gukanda umwenda usize PTFE hagati yindorerwamo zindorerwamo zishyushye kuri 360-380 ° C - uhindura cyane morfologiya yubuso, 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.

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, kwiyuhagira hejuru (amazi yimvura yoza umwanda), kohereza urumuri rworoshye (6-13%), Urwego rwumuriro A, nimbaraga zimeze nkicyuma munsi ya 1.5 kg / m². Ikoreshwa muri stade, ibibuga byindege, ninyubako zishushanyije kwisi yose.

Kwinjiza PTFE ntabwo bigarukira gusa kumyenda ya fiberglass. Iyi ngingo itangiza ubundi buryo 7 - aramid, fibre karubone, PBI, ibyuma byoroshye, grafite, asibesitosi (ikuweho), hamwe na ceramic yuzuza - hamwe nibikorwa byabo, ibyiza, imipaka, hamwe nibikorwa byingenzi.

Iyi ngingo isobanura impamvu imyenda ya alkali idafite fiberglass nigitereko gikundwa kumyenda yubushyuhe bwo hejuru bwa PTFE. Irimo guhuza imiti ikoresheje ibikoresho bya silane hamwe nibintu byingenzi bifatika nkubushyuhe bwumuriro, guhagarara neza, hamwe no kurwanya ruswa - kwemeza imikorere irambye mubidukikije.