Sehlogo se se akaretša menyetla ya tirišo yeo e ka bago gona ya lešela la themperetšha ya godimo ya Teflon ka intastering ye e tšwelelago ya dibetri tša maemo a tiilego. Mafelo a mane: Dry eleketorode / electrolyte lera tlhahiso - phahameng-mocheso khahlanong le thupa conveyor mabanta bakeng sa chesang moqolo tobetsa (150-250 ° C) kgontsha boreleli peeling ya intša tšehetsa lifilimi; chesang rolara koahela lera e le seka-sa ruri-ba khahlanong le thupa lera; e netefatša boreledi filimi bokagodimo, fokotša diphošo, kaonafatša poelo. Lokolla liners le cushioning pads bakeng sa chesang-tobetsa densification - sulfide / polymer dibetri hloka chesang isostatic / bataletseng tobetsa (100-300 ° C, mashome a MPa); PTFE lesela beha pakeng tsa betri mokgobo le hlobo thibela khomarela, kgontsha junifomo khatello kabo ka micro-elasticity, sireletsa futhumatsang lipoleiti.

Sehlogo se se hlahloba diphetogo go diketane tša dimolekule tša PTFE ka tlase ga mahlasedi a ultraviolet. Main-ketane scission le boima ba limolek'hule phokotso: UV (254nm, 471 kJ / mol) roba CC ditlamo (347 kJ / mol), ho baka homolysis, generating CF2-fedišitšwe radicals mahala, bohale boima ba limolek'hule bo theoha, tahlehelo ea thata le elongation. Ditsela tša karabelo ya radical ya go se lefelwe: ka oksitšene, di-radical tša peroxy di a bopega, di beakanya gape go dihlopha tša mafelelo tša acyl fluoride (—COF) le esiti ya carboxylic (—COOH), di lokolla COF2 le CO2 (COF2 e hydrolyzes go HF); ka mafelong a lefaufau ao a sa šomego, go se lekalekane/go kopanywa gape go a buša, eupša go kgaogana ga ketane go dula go le gona.

Sehlogo se se akaretša tirišo ya lešela la themperetšha ya godimo ya Teflon ka gare ga magato a go thibela phišo ya spacesuit. Thepa motheo: PTFE- tlotsitsoeng fiberglass lesela, tsejoa ka aerospace e le Beta lesela, kopanya lesela tenyetsehang le PTFE feteletseng-tikoloho inertness. Karolo: legato la ka ntle kudu la Seaparo sa Thermal Micrometeoroid (TMG) ka diyuniti tša go sepela ka ntle ga dikoloi, tšeo di lebanego thwii le lefeela, diphapano tša themperetšha ye e feteletšego, le di-micrometeoroid bjalo ka lepheko la mathomo la mmele / la phišo bakeng sa difilimi tša ka gare tša aluminized. Tšhireletšo ya tikologo ye e feteletšego: e kgotlelela -200°C go ya go +260°C ya go fapana (e lebeletše letšatši >120°C go ya go moriti -160°C); bokagodimo bjo bošweu bo bontšha mahlasedi a letšatši; e šireletša difilimi tša polyimide tše di fokolago tša aluminized go tšwa go mengwapo le megokgo. Motion thuso: tlaase kgohlano PTFE holim thibela lera tangling nakong kopanela koba, netefatsa EVA tenyetseha.

Sehlogo se se akaretša mehola ya tirišo ya lešela la themperetšha ya godimo ya Teflon ka go omiša ga eleketorode ya betri ya lithium. E dirišwa e le mapanta a go sepetša goba di- liner tša ontong, e rarolla mathata a mararo a motheo: go kgomarela ga slurry, go tšhungwa le go ngwatha ga eleketrode. Mafelo a mane a mohola: Electrode boleng le poelo - thepa-ba khahlanong le thupa thibela PVDF binder khomarela kgontsha bonolo peeling feletseng; go swara phišo ya go swana ka 100-140°C e thibela go phatloga/go fiša; boreleli holim felisa scratches le phofo tšoloha; Go swarelela le go tsepama ga tshepedišo - go ganetša dikhemikhale kgahlanong le NMP solvent le mouwane wa electrolyte ntle le go ruruga/go tšofala; maatla a godimo a go goga le go tsepama ga ditekanyo go tšwa go substrate ya fiberglass bakeng sa go beakanya ka nepo; go hlwekiša mo go bonolo ka mašaledi a manyenyane ge a bapetšwa le mapanta a letlooa a tšhipi.

Sehlogo se se akaretša mothaladi wa lebelo le le tlwaelegilego bakeng sa mola wa tšweletšo wa go nošetša lešela la themperetšha ya godimo ya PTFE. Lebelo le tlwaelegilego: 2-15 m / motsotso, tsitsitseng tshebetso fapaneng 3-8 limithara / mets, masela a tšesaane / phahameng-lebelo mela ho fihlela ho 10-15 limithara / mets. Dithibelo go tšwa go go tsenelela ga impregnation: lešela le swanetše go kgotsofatšwa ka botlalo ka emulsion ya PTFE ka gare ga dikagare tša sehlopha sa tlhale — lebelo le legolo kudu le hlola impregnation ye e sa lekanego, tlala ya resin le ditlhale tše di omilego; viscosity emulsion, mahloriso a dilo tše di tiilego, segokanyipalo sa go loga sa lešela ka moka di fokotša seelo sa go tsenelela, go nyaka lebelo le le nanyago bakeng sa masela a matelele/a go kitima. Dipasa tša go tlotša: dipasa tše ntši (2-6+) tše di nyakegago bakeng sa go tlotša ka go se be le diphošo tše di kitimago; pele feta butle bakeng sa anchoring, morago ga moo e feta ka ka tsela e itekanetseng eketsehile.

Sehlogo se se akaretša dikagare tša silica le maemo a tirišo ya lešela la tlhale ya khalase ya silika ye e phagamego. Silica dikahare ga tlhaloso: konokono pontshi ke SiO2 ≥96% (maemo 96-98%, premium mephato >99% ka acid leaching le sintering, atamela hloekileng quartz faeba). Tšweletšo: Lešela la galase ya E le feta go tšhollwa ga esiti ye e fišago go rarolla dikarolo tšeo e sego tša silika (boron oxide, sodium oxide), go hlola marapo a porous a silika ye ntši, ke moka a sintered bakeng sa go densification. Mehola ya motheo: tirelo ye e tšwelago pele ka 900°C ka mafelong a go oxidizing, nako ye kopana ka godimo ga 1200°C, ntlha ya go nolofala kgauswi le 1700°C; go tsepama ga dikhemikhale kgahlanong le bontši bja diesiti/alkali ntle le HF le esiti ya fosforo ye fišago; tlase dielectric kamehla le tsitsitseng kwahelang ka dithempereichara phahameng.

Sehlogo se se akaretša tiragalo ya delamination ya lešela la themperetšha ya godimo ya Teflon. Delamination e bolela karoganyo le go ebola magareng ga go tlotša ga PTFE ga godimo le lešela la motheo la fiberglass ya ka gare goba magareng ga magato a mantši a go tlotša. Dipontšho tša pono: go phatloga/go phatloga (dibubble tše di phagamišitšwego ka maikutlo a sekoti) bjalo ka maswao a mathomo; interlayer peeling le tlotsa habonolo tlosoa ka maqephe a pepesa fiberglass tšoeu; go šweufala ga selegae go latelwa ke go phatloga ka morago ga phišo/kgohlano. Main dibaki: Thermal khatello ea kelello tshenyo - fapaneng mogote katoloso coefficients pakeng tsa PTFE le fiberglass bopa ka hare khatello ea kelello, ka potlako futhumatsang / tsidifatso didikadikwe baka detachment; Diphošo tša boleng bja tšweletšo - kalafo ya bokagodimo bja fiberglass ye e sa lekanego, go impregnation ya PTFE ye e fokolago, sintering ye e sa lekanego yeo e hlolago kgokagano ya segokanyimmediamentsi sa sebolokigolo ye e fokolago.

Sehlogo se se hlaloša dimelo tša microstructural tša lešela la Teflon ya themperetšha ya godimo. marapo a substrate: sebopego sa go loga ka tlhale ya khalase ka gare ga diloga tše di sa hlakahlakanego/twill tše di nago le porosity ye e phagamego (mašobana a tekanyo ya micron ka gare ga diphuthelwana tša tlhale le ka di-node tša warp-weft) go fa sebaka sa go kolobiša ga PTFE. Coating sebopeho: feletseng impregnation encapsulation bopa 'matlafatsoa konkreite ' sebopeho moo litlhale khalase ba matlafatsa mohato, PTFE ke matrix tsoelang pele; bokagodimo nodular microstructure ya nodules (dikarolwana) interconnected ke fibrils e ntle thehoa nakong sintering; legato la letlalo le le kitimago le le tšwelago pele (tše mmalwa go ya go tše masome a di-micron ka botenya) la PTFE e hlwekilego e le lepheko la bohlokwa bakeng sa go se šome ga dikhemikhale, dithoto tšeo di sa kgomaretšego, le go thibela mohlagase.

Sehlogo se se hlahloba diphetogo tša sebopego ka lešeleng la themperetšha ya godimo ya PTFE nakong ya botšofadi. dikarolo tse 'nè: PTFE tlotsa microstructure - limolek'hule ketane scission le oxidation (carbonyl / carboxyl sehlopha sebopeho), crystallinity liphetoho (pele tsoha ebe o phuhlama), micro-petsoha le pinhole sebopeho, holim phofo; Khalase faeba substrate le segokanyimmediamentsi sa sebolokigolo - sizing / coupling moemeli bola ho baka tahlehelo ea tlamo, segokanyimmediamentsi sa sebolokigolo debonding le delamination (blistering, libakeng tse tšoeu), khalase faeba marangrang kgogolego le embrittlement, alkali tšepe oxide pula bakang khatello ea kelello tšilafalo; Macroscopic sebopeho le ponahalo - 'mala phetoho (tšoeu → beige → sootho → ba batsho), shrinkage deformation le curling, holim roughening le benya tahlehelo, phofo ka ama, tahlehelo feletseng ea ho feto-fetoga le maemo. Motheo wa botšofadi: tshepedišo ye e tšwelago pele ya 'go senyega ga go tlotša → go palelwa ga segokanyimmediamentsi sa sebolokigolo → go senyega ga substrate.'

Sehlogo se se akaretša kamoo o ka laolago nako ya go sintering ya lešela la themperetšha ya godimo ya PTFE. Mokgwa wa taolo ya motheo: peakanyo ya lebelo la mola. Sintering nako = atlehang futhumatsang karolo bolelele ÷ lesela leeto lebelo. Moedi wa sintering wo o šomago gabotse ke 350°C (ka godimo ga themperetšha ye e balwa bjalo ka nako ya sintering). Multi-zone thempereichara kabo: preheating (100-250 ° C), sintering (360-395 ° C), phahameng-mocheso setting (380-390 ° C), tsidifatso (ka tlase 300 ° C). Dinako tša tšhupetšo ka 380-390°C: boima bjo bonyenyane (0.08-0.13mm) metsotswana ye 30-60; maemo (0.18-0.25mm) 1.5-3 metsotso; boima (≥0.35mm) metsotso e 3-5. Tlhaolelo le peakanyo: ka fase ga-sintering (matla a fase, go tšhologa ga phofo, micro-cracks) → fokotša lebelo go oketša nako; go feta-sintering (go serolane, brittleness, muši wo mošweu) → oketša lebelo go khutsufatša bodulo. Go lekana ga themperetšha-nako go dumelela go sintering ka lebelo ga themperetšha ya godimo (395-405°C, metsotswana) goba go sintering ka go nanya ga themperetšha ya fase (360-375°C, metsotso ye 5-8).