Iyi ngingo ikubiyemo amahirwe yo gukoreshwa kuri Teflon yubushyuhe bwo hejuru murwego rwo hejuru rukora amashanyarazi. Ibice bine: Gukora electrode yumye / electrolyte membrane gukora - ubukonje bwo hejuru bwo kurwanya imikandara ya anti-inkoni yo gukanda (150-250 ° C) ituma ibishishwa byoroha bya firime; uruziga rushyushye rutwikiriye igice kimwe cya kabiri gihoraho kirwanya inkoni; ituma firime igaragara neza, igabanya inenge, izamura umusaruro. Kurekura imirongo hamwe nudupapuro two kwisiga kugirango dushyushye cyane - bateri ya sulfide / polymer ikenera isostatike ishyushye / gukanda (100-300 ° C, MPa mirongo); Umwenda wa PTFE ushyizwe hagati yububiko bwa bateri nububiko birinda gufatana, bigafasha gukwirakwiza igitutu kimwe binyuze muri micro-elastique, birinda amasahani yo gushyushya.

Iyi ngingo irasuzuma impinduka zumunyururu wa PTFE munsi ya ultraviolet irradiation. Umuyoboro wingenzi hamwe no kugabanya ibiro bya molekuline: UV (254nm, 471 kJ / mol) isenya imigozi ya CC (347 kJ / mol), itera homolysis, ikabyara CF₂ yarangiye radicals yubusa, kugabanuka kwibiro bya molekile, gutakaza ubukana no kuramba. Inzira yubusa ya radical reaction: muri ogisijeni, peroxy radicals ikora, igahinduranya na fluoride ya acili (-COF) na aside ya karubonike (—COOH) amatsinda yanyuma, ikarekura COF₂ na CO₂ (hydrolyzes ya COF₂ kuri HF); mu kirere cya inert, kutagereranya / kwiyubaka byiganje, ariko gusohora urunigi bikomeza kuba byinshi.

Iyi ngingo ikubiyemo ikoreshwa rya Teflon yubushyuhe bwo hejuru murwego rwo hejuru rwumuriro. Ibikoresho bifatika: Umwenda wa PTFE ushyizweho na fiberglass, uzwi mu kirere nk'umwenda wa Beta, uhuza imyenda ihindagurika hamwe na PTFE idafite ibidukikije bikabije. Uruhare: urwego rwimbere rwimyenda ya Thermal Micrometeoroid (TMG) mubice byimodoka zidasanzwe, bihura neza na vacuum, itandukaniro ryubushyuhe bukabije, hamwe na micrometeoroide nkinzitizi yambere yumubiri / ubushyuhe bwa firime imbere. Kurengera ibidukikije bikabije: bihanganira -200 ° C kugeza kuri + 260 ° C (bireba izuba> 120 ° C kugeza igicucu -160 ° C); ubuso bwera bugaragaza imirasire y'izuba; irinda firime ya aluminiyumu ya polyimide yoroheje kurira. Imfashanyo yimuka: ubuso buke PTFE irinda ibice gutitira mugihe cyo kugunama hamwe, byemeza ko EVA ihinduka.

Iyi ngingo ikubiyemo ibyiza byo gukoresha imyenda ya Teflon yubushyuhe bwo hejuru muri batiri ya lithium yumye. Ikoreshwa nkimikandara ya convoyeur cyangwa ifuru, gukemura ibibazo bitatu byingenzi: gufatira hamwe, kwangirika, no gushushanya electrode. Ibice bine byibyiza: Ubwiza bwa electrode numusaruro - imitungo irwanya inkoni irinda PVDF guhuza bifasha gukuramo byoroshye; imiyoboro imwe yubushyuhe kuri 100-140 ° C irinda gucika / gutwika; ubuso bunoze bukuraho ibishushanyo no kumena ifu; Kuramba no gukora neza - kurwanya imiti irwanya NMP hamwe na myuka ya electrolyte idafite kubyimba / gusaza; imbaraga zingana kandi zihamye ziva muri fiberglass substrate kugirango ihagarare neza; gusukura byoroshye hamwe nibisigara bike ugereranije nimikandara ya mesh.

Iyi ngingo ikubiyemo umurongo wihuta wumurongo wa PTFE yubushyuhe bwo hejuru bwimyenda yumurongo. Umuvuduko usanzwe: 2-15 m / min, urwego ruhoraho rukora 3-8 m / min, imyenda yoroheje / imirongo yihuta kugera kuri 10-15 m / min. Inzitizi ziterwa no kwinjirira mu nda: imyenda igomba kuba yuzuyemo emulioni ya PTFE muri fibre bundle imbere - umuvuduko mwinshi cyane utera gusama bidahagije, inzara yinzara hamwe na fibre yumye; emulsion viscosity, solide yibanze, imyenda yububoshyi byose bigabanya umuvuduko winjira, bisaba umuvuduko muke kumyenda yuzuye / yuzuye. Impapuro zipfundikirwa: passe nyinshi (2-6 +) zisabwa kugirango uburinganire bwuzuye butagira inenge; ubanza gutsindira gahoro gahoro, ibyakurikiyeho birashobora kwiyongera muburyo bugaragara.

Iyi ngingo ikubiyemo ibintu bya silika hamwe na ssenariyo yerekana ibirahuri bya silika yo hejuru. Ibisobanuro bya Silica: ibipimo fatizo ni SiO₂ ≥96% (bisanzwe 96-98%, amanota yo hejuru> 99% ukoresheje acide acide no gucumura, wegera fibre nziza ya quartz). Gukora: Umwenda wa E-ikirahuri unyuramo aside ishyushye kugirango ushongeshe ibice bitari silika (oxyde ya boron, sodium oxyde), bigakora skeleton yo hejuru-silika, hanyuma igacumura kugirango yongere. Ibyiza byingenzi: serivisi zihoraho kuri 900 ° C mukwangiza ikirere, mugihe gito hejuru ya 1200 ° C, koroshya hafi ya 1700 ° C; imiti ihamye irwanya aside / alkalis nyinshi usibye HF na aside fosifori ishyushye; munsi ya dielectric ihoraho kandi ihamye kubushyuhe bwinshi.

Iyi ngingo ikubiyemo ibintu byo gusibanganya imyenda ya Teflon yo hejuru. Gusiba bivuga gutandukana no gutobora hagati yubuso bwa PTFE nigitambaro cyimbere cya fiberglass cyangwa hagati yububiko bwinshi. Kugaragara kugaragara: guhuha / kubyimba (kuzamura ibibyimba byuzuye) nk'ibimenyetso byambere; interlayer peeling hamwe nigitambaro cyakuweho byoroshye mumpapuro zerekana fiberglass yera; cyera cyera gikurikirwa no guhindagurika nyuma yubushyuhe / guterana. Impamvu nyamukuru: Kwangirika kwubushuhe - gutandukanya coefficient zo kwagura ubushyuhe hagati ya PTFE na fiberglass bitera guhangayika imbere, ubushyuhe bwihuse / gukonjesha bitera gutandukana; Inenge nziza yumusaruro - kuvura fibre idahagije, kuvura nabi PTFE, gucumura bidahagije bitera guhuza imikoranire idahwitse.

Iyi ngingo isobanura microstructural ibiranga Teflon umwenda wo hejuru. Substrate skeleton: ibirahuri byo kuboha ibirahuri mubudodo busanzwe / twill hamwe nububasha bwinshi (micron-nini ya pore iri muri fibre bundles no kuri warp-weft node) itanga umwanya wo gutera PTFE. Coating morphologie: enapsulasiyo yuzuye igizwe 'ibyuma bishimangira beto ' aho fibre yibirahure ikomeza icyiciro, PTFE ni matrix ikomeza; microstructure ya nodular yubuso bwa nodules (uduce) ihujwe na fibrile nziza yakozwe mugihe cyo gucumura; uruhu rwinshi rwuruhu (byinshi kugeza kuri mirongo ya microne yuburebure) bwa PTFE nkinzitizi yingenzi yo kutagira imiti, imiterere idafite inkoni, hamwe n’amashanyarazi.

Iyi ngingo irasuzuma impinduka zimiterere muri PTFE yubushyuhe bwo hejuru mugihe cyo gusaza. Ibice bine: microstructure ya PTFE - gusohora urunigi rwa molekile hamwe na okiside (kwibumbira mu matsinda ya karubone / carboxyl), ihinduka rya kristu (kuzamuka hakiri kare noneho gusenyuka), micro-crack na pinhole, ifu yubutaka; Ibirahuri bya fibre substrate hamwe ninteruro - ubunini / guhuza ibice byangirika bitera igihombo cyo guhuza, gutandukana hagati no gutandukana (guhuha, ahantu hera), isuri ya fibre fibre isuri no kuyitobora, imvura ya alkali ya oxyde itera kwangirika kwangirika; Imiterere ya Macroscopique no kugaragara - guhindura ibara (cyera → beige → umukara → umukara), kugabanuka no kugabanuka, kugabanuka hejuru no gutakaza gloss, ifu iyo ikoraho, gutakaza burundu guhinduka. Ibyingenzi byo gusaza: inzira igenda itera 'gutwika igabanuka failure gutsindwa kwimbere → substrate degradation. '

Iyi ngingo ikubiyemo uburyo bwo kugenzura igihe cyo gucumura cya PTFE yubushyuhe bwo hejuru. Uburyo bwibanze bwo kugenzura: guhuza umurongo. Igihe cyo gucumura = uburebure bwo gushyushya igice length umuvuduko wurugendo. Inzira nziza yo gucumura ni 350 ° C (hejuru yubushyuhe bubarwa nkigihe cyo gucumura). Ikwirakwizwa ry'ubushyuhe bwa zone nyinshi: gushyushya (100-250 ° C), gucumura (360-395 ° C), ubushyuhe bwo hejuru (380-390 ° C), gukonja (munsi ya 300 ° C). Ibihe byerekanwe kuri 380-390 ° C: uburemere (0.08-0.13mm) amasegonda 30-60; bisanzwe (0.18-0.25mm) iminota 1.5-3; biremereye (≥0.35mm) iminota 3-5. Kumenyekanisha no guhinduka: munsi-gucumura (imbaraga nke, kumena ifu, micro-crack) → kugabanya umuvuduko kugirango wongere igihe; kurenza urugero (umuhondo, ubukana, imyotsi yera) → kongera umuvuduko kugirango ugabanye gutura. Ubushyuhe-bwigihe buringaniye butuma ubushyuhe bwihuta cyane (395-405 ° C, amasegonda) cyangwa gucisha make-gahoro gahoro (360-375 ° C, iminota 5-8).