Maqaalkani waxa uu daboolayaa fursadaha codsiga ee Teflon dharka heerkulka sare ee warshadaha batteriga adag ee soo baxaya. Afar meelood: Soo saarista korantada qalalan/xuubka korantada - Heerkulka heer-sare ee ka-hortagga-ulaha suunka ee cadaadiska duubka kulul (150-250°C) awood u siinaya in si siman loo diiriyo filimada is taageera; lakabka daboolka rullaluistemadka kulul sida lakabka ka hortagga-ulaha nus-joogta ah; waxay hubisaa dusha filimka siman, waxay yaraynaysaa cilladaha, waxay hagaajisaa dhalidda. Xadhkaha la sii daayo iyo suufka barkinta ee cufan-cadaynta kulul - baytariyada sulfide/polymer waxay u baahan yihiin cadaadis istaatig ah oo kulul (100-300 ° C, tobanaan MPa); Dharka PTFE ee la dhigo inta u dhaxaysa batteriga iyo caaryada waxay ka hortagtaa adhesion, waxay awood u siineysaa qaybinta cadaadiska isku midka ah iyada oo loo marayo dabacsanaan yar, waxay ilaalisaa taarikada kuleylka.

Maqaalkani wuxuu eegayaa isbeddelada silsiladaha molecular ee PTFE ee hoos yimaada shucaaca ultraviolet. Maqaarka silsiladda ugu weyn iyo dhimista miisaanka kelli: UV (254nm, 471 kJ/mol) waxay jebiyaan curaarta CC (347 kJ/mol), taasoo keenaysa homolysis, abuuritaanka CF₂-la joojiyay xagjirrada xorta ah, hoos u dhaca miisaanka unugyada fiiqan, luminta adkaanta iyo dhererka. Dariiqooyinka falcelinta xagjirka ah ee bilaashka ah: gudaha oksijiinta, radicals peroxy, dib u habeynta acyl fluoride (—COF) iyo karboksylic acid (—COOH) kooxaha dhamaadka, siidaaya COF₂ iyo CO₂ (COF₂ hydrolyzes ilaa HF); jawiga aan firfircoonayn, isu-dheellitirnaanta/dib-u-isku-dhafka ayaa ka sarreeya, laakiin maqaarka silsiladda ayaa weli ah mid aad u sarreeya.

Maqaalkani waxa uu daboolayaa codsiga Teflon dharka heerkulka sare ee lakabyada kuleylka kuleylka. Nuxurka walxaha: PTFE-dahaarka dharka fiberglass, oo hawada sare loo yaqaan sida dharka Beta, isku darka dabacsanaanta dharka iyo PTFE degenaansho la'aanta deegaanka ee xad dhaafka ah. Doorka: lakabka ugu dambeeya ee dharka Thermal Micrometeoroid (TMG) ee cutubyada dhaqdhaqaaqa ka baxsan, si toos ah u wajahan faakuum, kala duwanaanshiyaha heerkulka xad dhaafka ah, iyo micrometeoroids oo ah xannibaadda ugu horeysa ee jireed / kulaylka ee filimada aluminium gudaha ah. Ilaalinta deegaanka ee aadka u daran: waxay u adkaysataa -200°C ilaa +260°C kala duwanaanshaha (qorrax-ujeedka>120°C ilaa hadh -160°C); dusha cad waxay ka tarjumaysaa shucaaca qorraxda; waxay ka ilaalisaa aluminium aluminium filimaanta jilicsan xagashada iyo ilmada. Caawinta dhaqdhaqaaqa: xoqida hoose ee dusha sare ee PTFE waxay ka hortagtaa isku dhufashada lakabka inta lagu jiro foorarsiga wadajirka ah, hubinta dabacsanaanta EVA.

Maqaalkani waxa uu daboolayaa faa'iidooyinka codsiga Teflon dharka heerkulka sare ee lithium batteriga qalajinta. Loo isticmaalo sidii suumanka gudbinta ama foornada, xalinta saddex mashaakil oo asaasi ah: xabagta slurry, daxalka, iyo xoqitaanka korantada. Afar meelood oo faa'iido leh: Tayada korantada iyo wax-soosaarka - guryaha lidka ku ah waxay ka hortagayaan ku-xidhka PVDF ee awood u siinaya diirritaan dhammaystiran oo fudud; kulaylka isku midka ah ee 100-140 ° C waxay ka hortagtaa dildilaaca / gubashada; dusha siman waxay baabi'isaa xagashada iyo daadinta budada; Waarta iyo xasilloonida hawlgalka - iska caabbinta kiimikaad ee ka soo horjeeda dareeraha NMP iyo uumiga korantada iyada oo aan barar / gaboow lahayn; xoogga sare ee xajinta iyo xasilloonida cabbirka ee ka soo baxa substrate-ka fiberglas-ka ee meelaynta saxda ah; nadiifin fudud oo leh hadhaaga ugu yar marka loo eego suumanka mesh birta.

Maqaalkani waxa uu daboolayaa kala duwanaanshaha xawaaraha khadka caadiga ah ee PTFE xarriiqda wax-soo-saarka heerkul-sare ee dharka. Xawaaraha caadiga ah: 2-15 m/min, kala duwanaansho hawleed deggan 3-8 m/min, dhar khafiif ah/xawaaraha sare ilaa 10-15 m/min. Caqabadaha ka imaanaya gelitaanka impregnation: dharka waa in si buuxda loogu buuxiyaa emulsion PTFE gudaha xirmada fiber-ka-xawaaraha aad u sarreeya wuxuu keenaa impregnation ku filan, gaajo resin iyo fiilooyinka qallalan; viscosity emulsion, fiirsashada adkaha, cufnaanta tolmada dharka dhamaantood waxay yareeyaan heerka dhexgalka, oo u baahan xawaare gaabis ah oo loogu talagalay dhar qaro weyn / cufan. Dahaarka baasas: baas badan (2-6+) looga baahan yahay daahan cufan oo aan cilad lahayn; marka hore si tartiib tartiib ah u dhaafitaannada, baasaska xiga ayaa si dhexdhexaad ah loo kordhin karaa.

Maqaalkani waxa uu daboolayaa nuxurka silica iyo xaaladaha codsiga ee muraayadda fiber-ka-sare ee silica. Qeexida nuxurka silica: tilmaame xudunta u ah waa SiO₂ ≥96% (heerka 96-98%, darajooyinka qaaliga ah>99% iyada oo la adeegsanayo dheecaanka aashitada iyo sintering, soo dhawaada fiber quartz saafi ah). Wax-soo-saarka: Dharka E-glass-ku wuxuu maraa dheecaanka aashitada kulul si ay u milmaan qaybaha aan silica ahayn (boron oxide, sodium oxide), abuurista qalfoofka silica-sare ee dalool leh, ka dibna loo miiray cufnaanta. Faa'iidooyinka asaasiga ah: adeegga joogtada ah ee 900 ° C ee jawiga oksaydheynta, muddada gaaban ee ka sarreeya 1200 ° C, barta jilicsan ee u dhow 1700 ° C; xasiloonida kiimikaad ee ka dhanka ah inta badan asiidhyada/alkaliska marka laga reebo HF iyo fosfooraska kulul; dielectric hoose oo joogto ah iyo dahaarka deggan heerkulka sare.

Maqaalkani waxa uu daboolayaa ifafaale delamination ee Teflon dharka heerkulka sare. Delamination waxaa loola jeedaa kala-soocidda iyo diirinta u dhaxaysa daahan PTFE oogada iyo marada salka fiberglass gudaha ama inta u dhaxaysa lakabyo badan oo daahan. Muuqaalo muuqaal ah: finan/ bararo (xumbo kor u kacay oo leh dareen godan) sida calaamadaha hore; diirinta dhexda oo leh dahaar si fudud looga saaro go'yaal muujinaya muraayadda cad; caddayn meelaysan oo ay ku xigto kuleyl/xun ka dib. Sababaha ugu muhiimsan: Burburka cadaadiska kulaylka - isugeynta fidinta kulaylka ee kala duwan ee u dhexeeya PTFE iyo fiberglass waxay abuuraan walaac gudaha ah, wareegyada kuleylka / qaboojinta degdega ah waxay keenaan kala go'; Cilladaha tayada wax soo saarka - daawaynta dusha sare ee fiberglass oo aan ku filnayn, impregnation PTFE liidata, sintayn ku filan oo keenaysa isku xidhka wajiga oo daciif ah.

Maqaalkani waxa uu qeexayaa sifooyinka qaab-dhismeedka yar-yar ee Teflon dharka heerkulka sare. Qalfoofka substrate: texture fiber tod texture ee cad/ twill tolmo leh porosity sare (daloolada mikroroonka ee xirmooyinka fiber-ka iyo qanjidhada-warp-weft) siinaya meel bannaan oo PTFE impregnation. Qaab-dhismeedka dahaarka: encapsulation buuxda oo samaynaysa 'qaabka la xoojiyay ee shubka ah' halkaasoo fiilooyinka dhalooyinka ay xoojinayaan wajiga, PTFE waa matrix joogto ah; Qaab-dhismeed-yareedka qanjidhada ee dusha sare ee qanjidhada (qaybaha) oo isku xidhan oo ay leeyihiin fibrinno yaryar oo la sameeyay inta lagu jiro sintering; lakabka maqaarka cufan ee joogtada ah (dhowr ilaa tobanaan microns qaro weyn) ee PTFE saafi ah oo ah caqabad fure u ah la'aanta kiimikada, guryaha aan dhegta lahayn, iyo dahaarka korantada.

Maqaalkani wuxuu eegayaa isbeddelada qaabdhismeedka ee dharka heerkulka sare ee PTFE inta lagu jiro da'da. Afar arrimood: PTFE daahan microstructure - maqaarka silsilad molecular iyo oxidation (carbonyl/carboxyl kooxda formation), crystallinity isbedel (hore kor u kaca ka dibna dumo), micro-dillaac iyo pinhole formation, dusha budada; Substrate fiber galaas iyo interface - kala goynta wakiilka cabbirka/isku xidhka oo keenaya luminta isku xidhka, xidhidhaynta wejiga iyo delamination (caabuq, aagagga cad), nabaad guurka shabkada fiber-ka galaaska iyo nabaad-guurka, roobka birta alkali oo keena daxalka walaaca; Qaab dhismeedka macroscopic iyo muuqaalka - midabka isbeddelka (caddaan → beige → bunni → madow), qallafsanaanta iyo laallaabashada, rafashada dusha sare iyo luminta dhalaalka, budada marka la taabto, luminta dabacsanaanta buuxda. Nuxurka gabowga: geeddi-socod horumarsan oo ah 'hoos u dhigista dahaarka → fashilka interface → hoos u dhaca substrate.'

Maqaalkani waxa uu daboolayaa sida loo xakameeyo wakhtiga sinjiga ee dharka heerkulka sare ee PTFE. Habka xakamaynta xudunta ah: hagaajinta xawaaraha khadka. Waqtiga isku dhafka ah = qaybta kuleylka wax ku ool ah dhererka dhererka dharka. Heerkulka wax-ku-oolka ahi waa 350°C (heerkulkan ka sarreeya waxa lagu tiriyaa wakhtiga sintay). Heerkulka aagga badan ee qaybinta: preheating (100-250°C), sintering (360-395°C), dejinta heerkul sare (380-390°C), qaboojinta (ka hooseeya 300°C). Waqtiyada tixraaca ee 380-390 ° C: khafiif ah (0.08-0.13mm) 30-60 ilbiriqsi; heerka (0.18-0.25mm) 1.5-3 daqiiqo; culus (≥0.35mm) 3-5 daqiiqo. Aqoonsiga iyo hagaajinta: hoos u dhigista (xoogga hoose, daadinta budada, dildilaaca yar yar) → yareeyo xawaaraha si loo kordhiyo waqtiga; xad-dhaaf ah (jaalle, jajaban, qiiq cad) → kordhiso xawaaraha si loo gaabiyo degenaanshaha. Heerkulka-waqtiga u dhigma waxa ay ogolanaysaa in si degdeg ah kulkulkiisu sareeyo (395-405°C, ilbiriqsi) ama heerkul hoose oo tartiib tartiib ah (360-375°C, 5-8 daqiiqo).