Imyenda ya PTFE yubushyuhe bwo hejuru (PTFE isize fiberglass) ifite imbaraga zo guhangana nubushyuhe bwumuriro murwego rusanzwe rukora -70 ° C kugeza 260 ° C. Irashobora kwihanganira umuvuduko ukabije w'amagare, urugero, kuva kuri firigo -50 ° C ukagera kuri 260 ° C. Impamyabumenyi ya premium niyo irokoka ubukonje butunguranye kuva 260 ° C kugeza mumazi 10 ° C. Ariko, gutangaza ibikoresho biturutse ku bushyuhe buri hejuru ya 300 ° C (hafi ya PTFE ya 327 ° C yo gushonga) bizatera guhita bisenyuka. Fiberglass substrate itanga ihame ryimiterere; igifuniko cya PTFE nicyo kintu kigabanya.

Imyenda yubushyuhe bwo hejuru ya PTFE ikoreshwa cyane munganda zikora imiti mubikorwa birindwi byingenzi: gasketi ya flange hamwe nu miyoboro (irwanya acide / alkalis ikomeye), reaction ya tank hamwe na tank (irinda kwangirika kwicyuma, gusukura byoroshye), imifuka yo kuyungurura gaze ya gaz yangirika (kugeza kuri 260 ° C), kwangirika kwamashanyarazi hamwe no gufunga amashanyarazi, gupfunyika amashanyarazi. Amanota ya FDA na UL arahari.

Imyenda yubushyuhe bwa PTFE ihagaze neza kugeza kuri 300 ° C, ariko mumuriro irabora kandi ikarekura imyuka yuburozi cyane: hydrogène fluoride (HF) (korora, pulmonary edema) na perfluoroisobutylene (PFIB) (idafite ibara, impumuro nziza, ~ 10x uburozi burenze fosgene, nta antidote). Nanone umwuka wa karubone, ibisigazwa bya PFOA, na dioxyde de tronc. Ibisumizi bisanzwe byumwotsi ntacyo bikora; koresha ibikoresho byo guhumeka byonyine (SCBA). Ibimenyetso birashobora gutinda.

Ibikoresho byo kurangiza bikoreshwa kumyenda ya fiberglass mbere yo gutwikira PTFE nibyingenzi mubikorwa bya nyuma bya PTFE yubushyuhe bwo hejuru. Ibikoresho byo guhuza 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 gusiba, kubyimba, no kubaho igihe gito.

Gusukura neza no kubungabunga byongera ubuzima bwimyenda yubushyuhe bwo hejuru. Isuku nyuma yo kuyikoresha na nyuma yo gukonja. Koresha umuyonga 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.