Kab lus no tshuaj xyuas cov teebmeem ntawm lub vev xaib nruj tswj thaum lub sijhawm Teflon high-kub daim kab xev txheej ntawm PTFE substrate flatness thiab nplaum txheej uniformity. Cov teebmeem ntawm substrate flatness: nro tshaj elastic txwv ua rau irreversible yas stretching thiab necking (ntev elongation, transverse nqaim), ua slackness, wrinkles thiab wavy qauv; PTFE creep nyob rau hauv kev ruaj ntseg nro yuav 'frozen' tom qab txias, ua rau nto unevenness; Qhov tsis sib xws ntawm qhov sib txawv ntawm qhov tsis zoo ntawm cov menyuam tsis sib xws ua rau cov npoo curled, nruab nrab blistering, thiab lub sijhawm nruj-xoo cov cim.

Kab lus no tshuaj xyuas cov kev hloov pauv hauv PTFE cov ntaub ntawv kub kub thaum laus. Plaub yam: PTFE txheej microstructure - molecular saw scission thiab oxidation (carbonyl / carboxyl pawg tsim), crystallinity hloov (thaum sawv ntxov ces cev qhuav dej), micro-crack thiab pinhole tsim, nto hmoov; iav fiber ntau substrate thiab interface - sizing / coupling tus neeg sawv cev decomposition ua rau poob ntawm kev sib txuas, interfacial debonding thiab delamination (blistering, dawb cheeb tsam), iav fiber network yaig thiab embrittlement, alkali hlau oxide nag lossis daus ua rau muaj kev ntxhov siab corrosion; Cov qauv macroscopic thiab tsos - xim hloov (dawb → beige → xim av → dub), shrinkage deformation thiab curling, nto roughening thiab gloss poob, hmoov thaum kov, ua tiav tsis yooj yim. Qhov tseem ceeb ntawm kev laus: kev nce qib ntawm 'coating degradation → interface tsis ua hauj lwm → substrate degradation.'

Kab lus no hais txog yuav ua li cas tswj sintering lub sij hawm ntawm PTFE high-temperature ntaub. Core tswj txoj kev: kab ceev hloov. Sintering lub sij hawm = cov cua sov seem ntev ÷ ntaub mus ceev. Qhov zoo ntawm sintering pib yog 350 ° C (siab tshaj qhov ntsuas kub no suav nrog lub sijhawm sintering). Multi-zone kub faib: preheating (100-250 ° C), sintering (360-395 ° C), qhov kub thiab txias (380-390 ° C), txias (hauv qab 300 ° C). Siv sij hawm ntawm 380-390 ° C: hnav (0.08-0.13mm) 30-60 vib nas this; txheem (0.18-0.25mm) 1.5-3 feeb; hnyav (≥0.35mm) 3-5 feeb. Kev txheeb xyuas thiab kev hloov kho: hauv qab-sintering (tsis tshua muaj zog, hmoov tsis zoo, micro-cracks) → txo qis kom ncua sij hawm; over-sintering (daj, brittleness, dawb fumes) → nce ceev kom shorten nyob. Kub-lub sij hawm sib npaug tso cai rau high-temperature sintering (395-405 ° C, vib nas this) los yog qis-temp qeeb sintering (360-375 ° C, 5-8 feeb).

Kab lus no piav qhia txog cov qauv ntawm kev hloov pauv hauv kev sib koom ua ke ntawm PTFE high-temperature tape adhesive layer after high-temperature aging. Peb-theem qauv: Tom qab kho qhov nce theem (thaum ntxov-kub raug kub ntawm 200-260 ° C, cov seem residual reactive pawg txuas ntxiv txuas ntxiv, cohesion nce ntxiv); Stable equilibrium theem (crosslinking mus kom tiav, cohesion tseem ruaj khov nyob rau lub sij hawm ntev); Degradation thiab poob theem (ntau lub sij hawm / kub ua rau lub ntsiab saw degradation, cohesion txo, nplaum softens thiab ua tacky). Cov hauv paus hauv paus ua rau tsis sib haum xeeb (sab hauv tearing tawm residue) thiab nyem-tawm (txias ntws los ntawm cov npoo vim txo qis modulus) raug tshuaj xyuas.

Kab lus no qhia txog cov ntawv thov ntawm Teflon high-temperature npuag hauv kev lag luam hnub ci zog. Core daim ntawv thov nyob rau hauv module lamination: tso ntaub tso rau saum toj / hauv qab PV modules tiv thaiv molten EVA (140-150 ° C) los ntawm adhering rau cua sov platen los yog roj hmab phaj, tiv thaiv cov cuab yeej thiab xyuas kom meej cov qauv du; laminator conveyor siv rau tsis siv neeg loading / unloading; roj hmab platen tiv thaiv ntaub txuas ntxiv kev pab cuam lub neej. Cell stringer soldering: conveyor txoj siv nqa lub hlwb thiab ribbon los ntawm thaj chaw cua sov, nrog cov nplaum uas tsis yog nplaum tiv thaiv flux thiab solder splashes; cua sov platform cushions rau soldering workstations. Cov rwb thaiv tsev kub kub: qhwv rau cov cua sov, cov thermocouples, cables hauv laminators thiab kho qhov cub; khoom siv thermal rwb thaiv tsev curtains thiab shields.

Kab lus no suav nrog cov kauj ruam ua ntej yuav tsum tau ua rau fiberglass ntaub ua ntej PTFE emulsion impregnation. Kauj Ruam 1: Kev kho cua sov / dewaxing ntawm 300-450 ° C kom tshem tawm tag nrho cov paraffin wax thiab roj ntawm fiber ntau (paraffin wax, starch derivatives), residual sizing cov ntsiab lus yuav tsum tau qis dua 0.2%, ua 'heat-dewaxed npuag.' Kauj Ruam 2: Kev kho tshuaj deg KH-0 silage (KH5-0) A-174) los tsim cov tshuaj lom neeg cov yeeb yaj kiab rau ntawm qhov chaw fiber ntau, ua kom cov choj molecular ntawm inorganic iav fibers thiab organic PTFE; Cov khoom lag luam muaj nyob rau hauv cov ntaub ntawv kho mob ua ntej tuaj yeem hla cov kauj ruam no tab sis yuav tsum tau kuaj xyuas. Kauj Ruam 3: Qhuav thiab preheating - ziab ntawm 80-120 ° C rau 1-2 teev kom txo cov dej noo hauv qab 0.1%, tiv thaiv npuas / tsis muaj dab tsi tshwm sim thaum kho.

Tsab ntawv xov xwm no nthuav tawm txoj hauv kev los txhim kho creep tsis kam thiab lub sij hawm ntev tuav ruaj khov ntawm Teflon high-temperature daim kab xev. Cov tswv yim muaj xws li: Molecular network topology optimization - siab MQ silicone resin / cov pos hniav piv (1.2: 1-2: 1) cov ntaub ntawv nyuaj-theem domains; kev koom ua ke ntawm phenyl pawg (20-30 mol%) cuam tshuam cov saw hlau; crosslink molecular hnyav tswj ntawm 5,000-15,000 g / mol; Gradient modulus multilayer nplaum qauv - primer-anchoring txheej (1-3μm) nrog silane coupling tus neeg sawv cev, high-modulus cohesive txheej (30-50μm) raws li shear-resistant skeleton, viscoelastic functional txheej (3-8μm) rau deg ntub dej; Nanofillers - fumed silica (10-25 wt%) nrog kev hloov kho saum npoo tsim rov qab lub cev sib txuas.

Kab lus no tshuaj xyuas cov qauv kev hloov pauv ntawm PTFE-coated fiberglass npuag hauv chemically corrosive ib puag ncig. PTFE txheej yog ruaj khov heev nyob rau hauv feem ntau cov xov xwm (xws li aqua regia, concentrated acids, organic solvents) - molecular chains tseem zoo li tsis hloov. Kev zam: molten alkali hlau extract fluorine ua carbonization (xim av / dub, nkig); muaj zog fluorinating cov neeg ua haujlwm (F₂, ClF₃) rhuav tshem cov pa roj carbon monoxide; qee cov kuab tshuaj Freon ua rau o; kub concentrated oxidizing acids maj mam qhia polar pawg ntawm nto.

Kab lus no qhia txog cov ntawv thov ntawm PTFE-coated fiberglass npuag hauv kev lag luam hluav taws xob thiab hluav taws xob. Rau thaj chaw loj: Cov rwb thaiv tsev kub kub thiab kev tiv thaiv - lub cev muaj zog inter-tig / qhov chaw / theem rwb thaiv tsev, transformer txheej rwb thaiv tsev, coil wrapping, hluav taws xob cua sov khoom cais; Copper-clad laminate thiab PCB manufacturing - tso cov ntaub hauv PCB lamination, prepreg thiab CCL huv conveying; Electronic soldering - solder masking rau yoj / reflow soldering (kub ntiv tes tiv thaiv), reflow cub conveyor siv, soldering workstation mats, kub cua phom tiv thaiv npog; Cable thiab thaiv hlua - high-temperature cable wrapping daim kab xev, thermal tes tsho thiab fireproof npog, tshav kub-shrink tubing expansion processing conveyor siv; Anti-static thiab cleanroom - huv chav conveyor siv thiab workstation mats, semiconductor thiab photovoltaic high-temperature conveying.

Tsab ntawv xov xwm no nthuav tawm cov kev ntsuam xyuas rau kev tiv thaiv kev tiv thaiv thiab kev ntxuav yooj yim ntawm PTFE-coated fiberglass ntaub tiv thaiv cov roj stains thiab plua plav. Cov txheej txheem suav nrog: kev sib cuag lub kaum sab xis thiab qhov chaw ntsuas hluav taws xob - dej sib cuag lub kaum sab xis feem ntau> 110 °, dov lub kaum sab xis 越小越好, lub zog saum npoo zoo tshaj 18-20 mN / m; Mechanical tev kuaj - 180 ° tev quab yuam nrog cov qauv kab xev, zoo tagnrho <0.1 N / 25 hli; Simulated roj kuj ntsuas - roj stain zawv zawg / residue txoj kev, quantitative so cleaning efficiency siv xim sib txawv ΔE ntsuas (me me ΔE = zoo dua tu), thiab ceev oily marker xeem (tus number case shrinkage qhia zoo anti-fouling); Kev soj ntsuam cov plua plav - cov txheej txheem plua plav nrog cov duab tsom xam, kev tshem tawm cov plua plav tawm hauv huab cua ntsuas qhov tsawg kawg nkaus tawm qhov nrawm, thiab kev ntsuam xyuas electrostatic adsorption ntawm qhov chaw tiv taus; Kev ntsuas kev ua haujlwm ntev - rov ua txhua qhov kev ntsuam xyuas tom qab kub kub (260 ° C / 300 ° C) lossis Taber abrasion kom ntseeg tau tias kev ua haujlwm ntev ntev.