Imyenda ikomeye ya PTFE yubushyuhe bwo hejuru ni igizwe na fiberglass yo hejuru cyane-hamwe na PTFE. Ibyingenzi byingenzi bikwirakwizwa mu nganda (guteka ibiryo, kumisha imyenda, gutwara PCB), kurinda gusudira (gutwikira ubushyuhe, gufunga ingabo), kumanura no gushyiramo imashini zishyushye (gushushanya reberi, PV lamination), kubika amashanyarazi (moteri ya moteri, gupfunyika insinga), ibyubatswe byubatswe (ibisenge bya stade, ubuzima bwa tekinike) porogaramu (gukata laser, icapiro rya 3D).

Kuma nintambwe ikomeye mubikorwa bya PTFE yubushyuhe bwo hejuru. Inenge zisanzwe zirimo: guturika (gukama vuba cyane, uruhu rwo hejuru), kwimuka kwimuka (ibice byimuka hejuru, guhuza imbere imbere), pinholes / ibisebe (umwuka wafashwe cyangwa umwuka), ibibara byera hamwe na chalking (kwimuka kwa surfactant cyangwa fusion ituzuye), umuhondo / kokiya (gushyuha cyane) ariko imbere imbere (uruhu rwo gufata imitego yubushyuhe), nimpande zimbitse (ingaruka yikawa-impeta). Ibisubizo bikubiyemo imyirondoro yumye, guhumeka neza, hamwe no kwitegura.

PTFE emulsiyasi yimyenda ya fiberglass isaba abafasha batandukanye kugirango bagere kumyenda imwe, gufatana gukomeye, hamwe nubuso butagira inenge. Ibintu byingenzi byongeweho harimo: ibikoresho byo guhanagura (kugabanya ubukana bwubutaka, kunoza kwinjira), kubyimbye (kugenzura ububobere nuburemere bwa coating), kugenzura pH (guhagarika emulioni kuri pH 9-10), ibikoresho byo guhuza silane (kongera imbaraga kumirahuri), imfashanyo zikora firime (PFA / FEP yo gucumura), kuzuza imikorere (kwangirika kwangiza) Guhitamo biterwa na substrate nibisabwa.

Igitambaro cyagutse cya fiberglass (igitambara kinini cyane) gitandukanye cyane nigitambara gisanzwe cya fiberglass muburyo bwimyenda. Binyuze mu kirere cyumuvuduko ukabije windege, ibirahuri bikomeza ibirahuri biratandukana, bigahondagurwa, kandi bigahinduka mubudodo bunini, bumeze nkipamba. Ibi birema umwenda mwinshi, woroshye hamwe nubushyuhe bwo hejuru bwumuriro (umuyaga wugarije ikirere), guhuza neza, gushungura neza, no kunoza amarira / flex - kubiciro byimbaraga nkeya. Ikoreshwa kuri gasketi yubushyuhe bwo hejuru, gupfunyika imiyoboro, imifuka yo kuyungurura, hamwe na kashe ya ziko.

Ibikoresho bitanduye ni ishingiro ryimikorere ya PTFE yubushyuhe bwo hejuru. Emulioni yuzuye ya PTFE (nta ioni yicyuma, nta bisigara bifite uburemere buke bwa molekile) itanga ubushyuhe bwumuriro (nta muhondo ugera kuri 260 ° C), udahamye udafite inkoni, nimbaraga za dielectric. Kuri fiberglass, E-ikirahuri kitarimo alkali (Na₂O <0.8%) gikomeza imbaraga hamwe nubushuhe mubushyuhe bwinshi; giciriritse / kinini-alkali ikirahure gitera kwangirika. Kurandura burundu ibikoresho byo kuboha birinda karubone no gusiba. Isuku igira ingaruka itaziguye mubuzima bwa serivisi, kubahiriza ibyiciro byibiribwa, no kwizerwa kwamashanyarazi.

Mbere yo gukama neza imyenda ya fiberglass ningirakamaro mugukurikirana PTFE nyuma, gutera inda, cyangwa kumurika. Uburyo butatu bwingenzi: kuvanaho ubuhehere kuri 105-120 ° C (iminota 10-30 bitewe nuburemere), gusiba / gusukura ubushyuhe kuri 300-450 ° C (LOI <0.1%, irinde> 500 ° C), no gushyushya kuri 60-100 ° C mbere yo gutwikira. Kugenzura ubushyuhe bw'itanura (± 5 ° C), guhumeka ku gahato, no kurinda imyenda ikozwe na silane iri munsi ya 110 ° C. Bika umwenda wumye mu mifuka ifunze cyangwa mu byumba byumye (<30 ° C, <40% RH).

Imyenda ya PTFE yubushyuhe bwo hejuru (PTFE isize fiberglass) hafi ya chimique, ariko ibintu bimwe na bimwe bitera kwangirika mubihe byihariye. Igitero cya PTFE kiziguye kibaho hamwe na metero ya alkali yashongeshejwe (sodium, potasiyumu), imiti ikomeye ya fluor (F₂, ClF₃) ku bushyuhe bwinshi, hamwe na alkalis ikomeye yashonga hejuru ya 300 ° C. Kwangirika mu buryo butaziguye bibaho iyo aside hydrofluoric (HF), alkalis ishyushye cyane, cyangwa aside fosifori ishyushye yinjira mu nenge kandi igatera substrate ya fiberglass. Kumurimo ukabije wimiti, koresha firime nziza ya PTFE idafite fiberglass.

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 ya PTFE yubushyuhe bwo hejuru (PTFE isize fiberglass) itanga inyungu enye zingenzi nkurwego rwo kurwanya ruswa: kutagira imiti (irwanya aqua regia, alkalis ikomeye, umusemburo), ubushyuhe bwagutse (-70 ° C kugeza 260 ° C ikomeza, impinga ya 350 ° C), guhagarara neza (<0.5% kuramba), hamwe no kutagira inkoni (gusukura byoroshye, gukumira). Ikoreshwa mu miyoboro ya shimi, iminara ya desulfurizasi, ibigega byo gutoragura, n'ibikoresho by'ibiribwa / farumasi. Amanota ya FDA arahari.