Dis atikul de kɔba kwantiti kɔrɛspɔndɛns bitwin jel frakshɔn ɛn kɔhiv trɛnk insay silikon prɛshɔn-sɛnsitiv adhesives fɔ Teflon tep. Gel frakshכn = mas pasεnshכn fכ kכroslink nεtwכk we insכlubul insay toluεn (Soxhlet εkstrakshכn, 24hr). Kohesive strכng we dεn kכl hεy-tεmprachכ hכld pawa (180°C, 1kg). Tri rεnj dεm: dכn krichכl pכynt (<60%) — nכ pεrkolayt nεtwכk, we de ol pawa nia ziro; prεktikal rεnj (60-85%) — kכhεsiv strכng de gro εkspכnεshכnal wit jel frakshכn, 60%→70% de rayz hכld tεm frכm minit to awa, 70%→80% de gi 3-10x inkrεs; hכy kכroslink (>85%) — gεn slo (85%→95% כnli 20-50% inkrεs), tak dכp sכmtεm, >95% de lכs PSA prכpati dεm.

Dis atikul de egzamin chenj dεm to PTFE mכlikul chen dεm כnda ultraviolet irεdyushכn. men-chen scission εn mכlikul wet rεdukshכn: UV (254nm, 471 kJ/mol) de brok CC bכnd dεm (347 kJ/mol), we de mek homolysis, jεnarεt CF2-tεrminεt fri radikal dεm, shap mכlikul wet dכp, lכs tכf εn εlongeshכn. fri radikal riakshכn path dεm: insay כksijεn, pεrכksi radikal dεm de fכm, dεn de arenj bak to asil fכrayd (—COF) εn kכbכksilik asid (—COOH) εnd grup dεm, we de rilis COF2 εn CO2 (COF2 de haydrolayz to HF); insay inεt atmosfεr, disproporshכn/rεkombinεshכn de dכmin, bכt chen scisshכn de stil de prεdominant.

Dis atikul de kɔba aplikeshɔn fɔ Teflon ay-tɛmpracha fabrik insay spɛssuit tɛmal insuleshɔn layers. Material essence: PTFE-coated fiberglass fabric, we dɛn sabi na aerospace as Beta klos, we de kɔba fabrik fleksibiliti wit PTFE ekstrim-ɛnvayrɔmɛnt inɛtnɛs. Rol: ɔtamost layt fɔ Tɛmal Maykromitiɔroyd Garmɛnt (TMG) insay ɛkstravehikul mobiliti yunit dɛn, we de fes vaykum dairekt wan, ekstrim tɛmpracha difrɛns, ɛn maykromitiɔroyd dɛn as fɔs fizik/tɛmal barɛri fɔ insay aluminized film dɛn. Ekstrim envayrɔmɛnt protɛkshɔn: i de tinap fɔ -200°C to +260°C rɛnj (we de fes di san >120°C to shado -160°C); wayt sɔfays de sho di san raytin; protεkt fraylayz aluminized polyimide film dεm frכm skrach εn tear. Moshɔn ɛp: lɔw frikshɔn PTFE sɔfays de mek layt nɔ tang di tɛm we di jɔyn de bɛnd, we de mek shɔ se EVA fleksibiliti.

Dis atikul de kɔba di aplikeshɔn advantej dɛn fɔ Teflon ay-tɛmpracha fabrik insay litiɔm bateri ilɛktrɔd drying. Dɛn kin yuz am as kɔnvayɔri bɛlt ɔ ɔvin layna, fɔ sɔlv tri men prɔblɛm dɛn: slɔri adheshon, kɔrɛshɔn, ɛn ilɛktrɔd skrach. Fo advantej eria: Ilɛktrod kwaliti ɛn yield — anti-stik prɔpati dɛn de mek PVDF binder adheshon we de mek i izi fɔ pul am kɔmplit; yunifom tεmral kכnduktiviti na 100-140°C de mek i nכ krak/sכch; smol smol say de mek yu nɔ gɛt skrach ɛn paoda we de shed; Durabiliti ɛn ɔpreshɔnal stebiliti — kεmikכl rεsistεns εgεst NMP sכlvεnt εn εlektrolayt vaypa dεm we nכ de swεla/εj; ay tɛnsiɛl trɛnk ɛn dimɛnshɔnal stebiliti frɔm fayv glas sabstret fɔ prɛsis pozishɔn; izi fɔ klin wit smɔl smɔl rɛsɛdyu we yu kɔmpia am wit mɛtal mɛsh bɛlt.

Dis atikul de kɔba aw fɔ mach dikɔmpɔzishɔn tɛmpracha ɛn af-layf fɔ di pεrɔksayd krɔslinkin ɛjɛn (BPO ɛn DCP) wit di kɔring prɔses winda fɔ Teflon tep. Kor data: BPO — 1-min haf-layf na ~131°C, 1-hr na ~92°C, 10-hr na ~72°C; DCP — 1-min na ~171°C, 1-hr na ~135°C, 10-hr na ~115°C. Matching logic: adhesive nid 97-99% kroslink = 5-7 haf-layf; di tεm we di kכriכn de kכl = 5-7 × haf-layf na tεmprachכ we dεn tכk bכt. Bak-kalkul tɛmpracha frɔm prodakshɔn layn rɛsidɛns tɛm ɔ bak-kalkul tɛm frɔm maksimal alawable tɛmpracha.

Dis atikul kɔba tipik layn spid rɛnj fɔ PTFE ay-tɛmpracha fabrik impregnashɔn prodakshɔn layn. Tipik spid: 2-15 m/min, stebul ɔpreshɔn rɛnj 3-8 m/min, tin fabrik/ay-spid layn dɛn we go rich 10-15 m/min. di tin dεm we de kכnstrakt frכm impregnashכn pεnεtreshכn: di fabrik fכ fulכp fכ fulכp wit PTFE emulshכn insay di fayv bכndεl intayri — tu hכy spid de mek i nכ de impregnashכn, rεsin starvεshכn εn dray fayv dεm; emulshכn viskositi, sכlid kכnsantreshכn, fabrik wev dεnsiti כl de ridyus pεnεtreshכn rεt, we nid fכ slo spid fכ tik/dεns fabrik dεm. Kotin pas: mכltipכl pas (2-6+) we nid fכ dense difεkt-fri kכt; fכs pas slo fכ ankכr, di pas dεm we de afta dat kin inkrεs mכdarεt.

Dis atikul kɔmpia difrɛns bitwin infrarɛd raytin ɔt ɛn ɔt-ɛya sirkuleshɔn ɔt pan kroslink strɔkchɔ yunifɔmiti fɔ silikon adhesive layt. hεt tכnfכs mεkanism dεm: hot-εya na kכnvεkshכn-kכndukshכn, jεntεl εn prכgrεsiv, we de mek mכdarεt tεmprachכ grεdiεnt; IR na rεdyushכn-absכpshכn wit intens sכfayz absכpshכn (maykromita to milimita) we de mek stip sεf-to-intεriכr grεdiεnt. ifekt dεm pan kroslink dεnsiti distribushכn: hot-εya de alaw insay εn כta pat dεm fכ enta vulkanayzεshכn tεmprachכ rεnj nia wan tεm, we de gi yunifכm kroslink dεnsiti along tik; IR de mek di sכfayz layεr kכl instantly fכm dense skin we de hεndr hεt tכnfכs, we de rizulta in shap grεdiεnt fכ kכroslink dεnsiti de dכn frכm sכfayz insay.

Dis atikul de tɔk bɔt silika kɔntinyu ɛn aplikeshɔn sɛnɛriɔ fɔ ay-silika glas fayba fabrik. Silika kɔntinyu spɛsifikɛshɔn: kɔr indikɛtɔ na SiO2 ≥96% (standad 96-98%, prɛmiɔm gred >99% via asid lichin ɛn sinta, we de aproch pure kwatz fayba). Manufakchurin: E-glas fabrik de go tru hot asid lichin fכ sכlv nכn-silika kכmכpכnt dεm (bכron oksayd, sכdiכm oksayd), we de mek porous hכy-silika skel, dεn de sinter fכ densification. di kor advantej dεm: kכntinyu savis na 900°C insay כksidayz atmosfεr, sכt tεm oba 1200°C, sכft pכynt nia 1700°C; kεmikכl stεbiliti εgεst mכst asid/alkali dεm εksεpt HF εn hכt fכsfכrik asid; lכw dayelektrik kכnstant εn stebul insulεshכn na ay tεmprachכ.

Dis atikul de kɔba di delamination phenomenon fɔ Teflon ay-tɛmpracha fabrik. Delamination de rifer to separeshɔn ɛn peeling bitwin sɔfayz PTFE kɔtin ɛn intanɛnt fayv glas bays fabrik ɔ bitwin bɔku kɔtin layers. di tin dεm we yu de si: blistering/bulging (rayz bכbul dεm wit olo fil) as fכs sayn dεm; intalayεr peeling wit kכt we izi fכ pul insay sheet dεm we de sho wayt fayv glas; lokaliz waytin we de fכlכ fכ flak afta hεt/frikshכn. Men kכz dεm: Tεmכl strεs dεmεj — difrεnt tεmral εkspεns kכfishεnt bitwin PTFE εn fayv glas de mek intanεt strεs, rεpid hεt/kכl saykl dεm de mek dεtachmεnt; Prodakshɔn kwaliti difrɛns — nɔ adekwayt fayv glas sɔfays tritmɛnt, po PTFE impregnashɔn, nɔ inɔf sintering we de mek wik intafaysal bɔnd.

Dis atikul de diskraib di maykrostrakchɔral kwaliti dɛn fɔ Teflon ay-tɛmpracha fabrik. Sabstret skel: glas fayba wef tεkschur in plein/twill wef wit ay porositi (maykron-skel por dεm insay fayv bכndεl dεm εn na wכp-wεft no dεm) we de gi spεs fכ PTFE impregnashכn. Kכtin mכfכlכji: ful impregnashכn εnkapsulεshכn we de fכm 'rεinfכs kכnkrit' strכkchכ usay glas fayb dεm de rεinfכs fεz, PTFE na kכntinyu matris; sכfayz nכdul maykrostrכkchכ fכ nodul dεm (partikl dεm) we intakכnekt bay fayn fayn fibril dεm we fכm we dεn de sinter; kכntinyu dεns skin layεr (sεvεra to tεn maykron tik) fכ pure PTFE as ki barεri fכ kεmikכl inεt, nכn-stik prכpati dεm, εn ilektrikal insulεshכn.