Eli nqaku liphonononga iziphumo zolawulo loxinzelelo lwewebhu ngexesha leTeflon lobushushu obuphezulu bokugquma kwi-PTFE substrate flatness kunye ne-adhesive coating efanayo. Iimpembelelo kwi-substrate flatness: Ukuxinezeleka okungaphezulu komda we-elastic kubangela ukolula kweplastiki okungaguqukiyo kunye nentamo (ubude be-longitudinal, ukucutha okunqamlezayo), ukwenza ukuthamba, imibimbi kunye neepateni ezinamaza; I-PTFE irhubuluza phantsi koxinzelelo oluqhubekayo iba 'nomkhenkce' emva kokupholisa, ibangele ukungalingani komphezulu; Uxinzelelo olungalinganiyo olunqamlezileyo olusuka kunxunguphalo olungeluhle lwe-roller parallelism ludala imiphetho egobileyo, amadyungudyungu aphakathi, kunye namanqaku axengaxengayo.

Eli nqaku livavanya utshintsho lwesakhiwo kwi-PTFE yokushisa okuphezulu ngexesha lokuguga. Imiba emine: I-PTFE yokwambathisa i-microstructure - i-molecular chain scission kunye ne-oxidation (i-carbonyl / i-carboxyl group formation), utshintsho lwe-crystallinity (ukunyuka kwangoko emva kokuwa), i-micro-crack kunye ne-pinhole formation, i-surface powdering; I-Glass fiber substrate kunye ne-interface - ubungakanani / ukudityaniswa kwe-arhente ukubola kubangela ilahleko ye-bonding, i-interfacial debonding kunye ne-delamination (i-blistering, iindawo ezimhlophe), ukukhukuliseka kwe-glass fiber network kunye ne-embrittlement, i-alkali metal oxide precipitation ebangela ukubola koxinzelelo; Ubume beMacroscopic kunye nenkangeleko — ukutshintsha kombala (omhlophe → beige → mdaka → mnyama), ukushwabana kwenguqu kunye nokugoba, ukurhabaxa komphezulu kunye nokulahleka kweglosi, umgubo xa ubamba, ukuphulukana nokuguquguquka ngokupheleleyo. Undoqo wokwaluphala: inkqubo eqhubekayo 'yokuthotywa kokugquma → ukungaphumeleli kojongano → ukuthotywa kwesubstrate.'

Eli nqaku liquka indlela yokulawula ixesha le-sintering yelaphu le-PTFE lobushushu obuphezulu. Indlela yokulawula ingundoqo: ukulungiswa kwesantya somgca. Ixesha le-Sintering = ubude becandelo lokufudumeza elisebenzayo ÷ isantya sokuhamba ngelaphu. Umda we-sintering osebenzayo yi-350 ° C (ngaphezulu kobu bushushu bubalwa njengexesha lokutshisa). Ukuhanjiswa kweqondo lokushisa kwiindawo ezininzi: ukushisa kwangaphambili (100-250 ° C), i-sintering (360-395 ° C), i-high-temperature setting (380-390 ° C), ukupholisa (ngaphantsi kwe-300 ° C). Amaxesha okubhekisela kwi-380-390 ° C: i-lightweight (0.08-0.13mm) i-30-60 imizuzwana; umgangatho (0.18-0.25mm) 1.5-3 imizuzu; ubunzima (≥0.35mm) 3-5 imizuzu. Ukuchonga kunye nohlengahlengiso: i-sintering engaphantsi (amandla aphantsi, ukuchithwa komgubo, iintanda ezincinci) → ukunciphisa isantya ukwandisa ixesha; ukuntywila ngokugqithisileyo (ukuba tyheli, ukubhitya, imisi emhlophe) → ukwandisa isantya ukuze wenze mfutshane indawo yokuhlala. Ukulingana kwexesha lobushushu kuvumela i-high-temp fast sintering (395-405 ° C, imizuzwana) okanye i-low-temp slow sintering (360-375 ° C, 5-8 imizuzu).

Eli nqaku lichaza ipateni yotshintsho kumandla okubambisana kwe-PTFE yobushushu obuphezulu betape yokunamathela emva kokuguga okuphezulu. Ipatheni yezigaba ezintathu: I-post-curing rise up (i-high-temperature exposure ekuqaleni kwe-200-260 ° C, amaqela asebenzayo aseleyo aqhubeka e-crosslink, ukubambisana kwanda kakhulu); Inqanaba elizinzileyo lolungelelwaniso (iindlela zokunqunyulwa kwe-crosslinking, umanyano luhlala luzinzile ixesha elide); Ukuthotywa kunye nenqanaba lokuhla (ixesha eligqithileyo / ubushushu bubangela ukuthotywa kwekhonkco eliphambili, ukudibanisa kuyancipha, i-adhesive iyathamba kwaye ibe tacky). Iingcambu ezibangela ukusilela okubambeneyo (ukukrazuka kwangaphakathi kushiya intsalela) kunye nokucudisa ngaphandle (ukuhamba okubandayo ukusuka emaphethelweni ngenxa yokuncipha kwemodyuli) ziyahlalutywa.

Eli nqaku lichaza usetyenziso lwelaphu leTeflon lobushushu obuphezulu kwishishini lamandla elanga. Ukusetyenziswa okungundoqo kwi-module lamination: ukukhutshwa kwelaphu elibekwe ngaphezulu / ngaphantsi kweemodyuli ze-PV zivimbela i-EVA etyhidiweyo (i-140-150 ° C) ekubambeleleni kwiplaten yokufudumeza okanye ipleyiti yerabha, izixhobo ezikhuselayo kunye nokuqinisekisa iindawo ezigudileyo zemodyuli; amabhanti okuhambisa i-laminator yokulayisha / ukukhulula ngokuzenzekelayo; ilaphu lerabha leplaten elikhuselayo landisa ubomi benkonzo. I-cell stringer soldering: iibhanti zokuhambisa ezithwala iiseli kunye neribhoni ngokusebenzisa indawo yokufudumeza, kunye ne-non-stick surface ukumelana ne-flux kunye ne-solder splashes; iqonga lokufudumeza imiqamelo kwi-soldering workstations. Ukushisa okuphezulu kweqondo lokushisa: ukugubungela iibhubhu zokufudumeza, i-thermocouples, iintambo kwii-laminators kunye nee-ovens zokunyanga; izixhobo zokugquma amalengalenga kunye namakhaka.

Eli nqaku liquka amanyathelo onyango afunekayo kwilaphu le-fiberglass phambi kokufakwa kwe-emulsion ye-PTFE. Inyathelo loku-1: Ubushushu bonyango/i-dewaxing nge-300-450°C ukususa ngokupheleleyo i-wax yeparafini kunye nee-oyile kumphezulu wefayibha (iparafini wax, izinto eziphuma kwistatshi), umxholo oshiyekileyo ofunekayo ngaphantsi kwe-0.2%, ukuvelisa 'ilaphu elithotywe ubushushu.' Inyathelo lesi-2: Unyango lwemichiza engaphezulu - ukusetyenziswa kwe-silane, i-KH-50 yokudibanisa i-KH-50 A-174) ukwenza ifilimu yokudibanisa iikhemikhali kwifiber surface, eyenza ibhulorho yemolekyuli phakathi kweefiber zeglasi ezingaphiliyo kunye ne-PTFE yendalo; Amalaphu akhoyo anyangwe ngaphambili angatsiba eli nyathelo kodwa kufuneka aqinisekiswe. Inyathelo lesi-3: Ukomisa kunye nokushisa kwangaphambili - ukomisa kwi-80-120 ° C kwiiyure ze-1-2 ukunciphisa ukufuma okungaphantsi kwe-0.1%, ukuthintela ukubunjwa kwe-bubble / void ngexesha lokunyanga.

Eli nqaku libonisa iindlela zokuphucula ukuxhathisa kwe-creep kunye nokuzinza kwexesha elide lokubamba i-teflon ephezulu yobushushu obuphezulu. Amaqhinga abandakanya: Ukulungiswa kwe-Molecular network topology - high MQ silicone resin / gum ratio (1.2: 1-2: 1) iifom ze-hard-phase domains; ukufakwa kwamaqela e-phenyl (20-30 mol%) kuthintela ukuhamba kwekhonkco; ubunzima bemolekyuli ye-crosslink elawulwa kwi-5,000-15,000 g / mol; I-Gradient modulus multilayer adhesive structure — primer-anchoring layer (1-3μm) ene-silane coupling agent, high-modulus cohesive layer (30-50μm) njenge-shear-resistant skeleton, i-viscoelastic functional layer (3-8μm) yokumanzisa umphezulu; I-Nanofillers - i-silica evuthayo (i-10-25 wt%) enokuguqulwa komphezulu yenza ukuwela ukuguqulwa komzimba.

Eli nqaku liphonononga utshintsho lwesakhiwo selaphu le-PTFE-coated fiberglass kwiindawo ezinobume bekhemikhali. I-PTFE yokwambathisa izinzile kakhulu kumajelo eendaba amaninzi (kuquka i-aqua regia, i-acids concentrated, izinyibilikisi eziphilayo) - amatsheyina emolekyuli ahlala engatshintshi. Ngaphandle: isinyithi esityhidiweyo sealkali sikhupha i-fluorine ebangela i-carbonization (emdaka / emnyama, enqabileyo); ii-fluorinating agents ezinamandla (F₂, ClF₃) ziqhekeza umqolo we-carbon-carbon; ezinye izinyibilikisi zohlobo lweFreon zibangela ukudumba; iiasidi ezitshisayo ezixutywe nge-oxidizing zizisa ngokucotha amaqela amhlophe kumphezulu.

Eli nqaku linika iinkcukacha ngezicelo zelaphu le-PTFE-coated fiberglass kushishino lombane kunye nombane. Imimandla emithandathu engundoqo: Ubushushu obuphezulu kunye nokukhuselwa — i-motor inter-turn/slot/ phase insulation, i-transformer layer insulation, i-coil wrapping, izixhobo zokufudumeza zombane zodwa; I-laminate ye-Copper-clad kunye ne-PCB yokuvelisa - ilaphu lokukhulula kwi-PCB lamination, i-prepreg kunye ne-CCL ehambisa i-clean; I-soldering ye-elektroniki - i-solder masking ye-wave / i-reflow soldering (ukukhusela iminwe yegolide), i-reflow oven conveyor belts, i-soldering workstation mats, i-hot air gun covers protective covers; Ikhebula kunye ne-wiring harness - i-high-temperature cable wrapping tape, imikhono ye-thermal kunye nezigqubuthelo zomlilo, i-heat-shrink ye-tubing yokwandisa amabhanti okuhambisa; I-Anti-static kunye ne-cleanroom - i-cleanroom conveyor belts kunye ne-workstation mats, i-semiconductor kunye ne-photovoltaic ephezulu yokushisa yokuhambisa.

Eli nqaku libonisa iindlela zovavanyo lokuchasa ukuncamathela kunye nokucocwa lula kwelaphu le-PTFE-coated fiberglass ngokuchasene namabala oyile kunye nothuli. Iindlela ziquka: I-engile yoqhagamshelwano kunye novavanyo lwamandla omphezulu — i-engile yoqhagamshelwano lwamanzi ngokuqhelekileyo > 110 °, i-angle eqengqelekayo越小越好, amandla aphezu komhlaba ngokufanelekileyo 18-20 mN/m; Uvavanyo lwe-mechanical peel - 180 ° amandla e-peel kunye ne-tape eqhelekileyo, efanelekileyo <0.1 N / 25 mm; Iimvavanyo zokuchasana kweoli ezifaniswayo - i-oil stain sliding / i-residue method, i-quantitative wipe yokucoca ukusebenza kakuhle usebenzisa ukuhluka kombala ΔE ukulinganisa (incinci ΔE = ukucoca okungcono), kunye novavanyo olukhawulezayo lwe-oil marker (i-ink shrinkage ibonisa ukuchasana kakuhle); Uvavanyo oluchasene nothuli - indlela yokumisa uthuli ngohlalutyo lomfanekiso, ukususwa kothuli lokuhamba komoya kulinganisa ubuncinci besantya sokuvuthela, kunye novavanyo lwe-electrostatic adsorption ngokusebenzisa ukumelana nomphezulu; Uvavanyo lokuqina — phinda zonke iimvavanyo emva kokuguga okuphezulu (260 ° C / 300 ° C) okanye i-Taber abrasion ukuqinisekisa ukuzinza kokusebenza kwexesha elide.