Theipi ya PTFE ya themperetšha ye e nabilego e nyaka PSA ya silicone yeo e bolokago go kgomarela go tšwa go -70°C go ya go 260°C. Senotlolo moralo elements: primer-anchored phetoho lera (thibela delamination), leoatle-sehlekehlekeng microstructure (MQ resin lihlekehlekeng + polysiloxane tsoelang pele mohato), gradient crosslinking (phahameng-segokanyipalo ka hare lera bakeng sa creep ho hanyetsa, tlaase-segokanyipalo ka ntle lera bakeng sa tlaase-temp tack), le mocheso-tsitsitseng fillers (cerium oxide bakeng sa oxidation ho hanyetsa). Dikarolo tša siloxane tše di fetotšwego ka phenyl di gatelela go kristaloga ga themperetšha ya fase, go kgontšha go fetofetoga le maemo ka fase ga -100°C.

Nakong ya go tlotša theipi ya PTFE, seelo sa go fetofetoga ga solvent sa sekgomaretši seo se nago le kgatelelo ya silicone ke paramethara ya tshepedišo ya bohlokwa. Ka lebelo kudu → go tloša letlalo la bokagodimo, go lekalekanywa mo go fokolago, mekoti ya diphini (solvent ye e swerego), le di-crater (condensation goba tše di hlotšwego ke tšhilafalo). Nanya haholo → sagging, metshetshe teteaneng, le dewetting ka tlaase-bokagodimo-matla PTFE. Leano loketseng: butle-butle qalong volatilization bakeng sa leveling le bubble baleha, joale potlakisa omisa bakeng sa bopa. Diriša disolvent tše di hlakantšwego (toluene/xylene + go oma ka lebelo) le themperetšha ya ontong ya gradient (tlase → magareng → godimo).

Theipi ya themperetšha ya godimo ya PTFE e lahlegelwa ke go kgomarela ka morago ga tšhomišo ye e boeletšwago ka lebaka la tšhilafatšo ya godimo (lerole, oli ya silicone), go palelwa ga go kgomarela ga sekgomaretši (mašaledi), goba go kgomarela ga substrate mo go fokolago. Ditharollo: phahameng-crosslink silicone PSA (tlaase falla, leka-lekaneng tack / tšoara matla), primer kalafo ka PTFE substrate, teteaneng fiberglass tšehetso, le tšoara e nepahetseng (bokagodimo bo hloekileng, pholile ebola, 180 ° khutlo). Teko ya boleng e netefatša kaonafatšo.

PTFE phahameng-mocheso ditheipi bolokwa ka moqolo foromo ka utloa bohloko ka interlayer khomarela (thibela) le sekgomaretsi phetiso ho bao e seng khomarela lehlakoreng. Modu dibaki: PTFE filimi elastic memoring ya le silicone PSA gagabela tlas'a khatello le mocheso. Tharollo: kgatelelo ya go sotha ya gradient – ​​ye e tiilego go dillaga tša ka ntle, e lokologile go dillaga tša ka gare – o šomiša taolo ya kgatelelo ya go tswalelwa. Tlaleletša ka go tlotša go lokollwa, polokelo ya maleba (15-40°C, 30-70% RH), go bewa ga go rapalala, le go dikološa moqolo wa kotara.

Theipi ya themperetšha ya godimo ya PTFE yeo e šomišwago ge go kgomagana le dijo e swanetše go hlompha mellwane ya themperetšha ye e tiilego: ≤260°C bakeng sa tšhomišo ye e tšwelago pele (ga go na moedi wa nako), 260-300°C go fihla go metsotso ye 30 fela, gomme >300°C e ileditšwe. Theipi ke ya kgokagano ye e sa lebanyego fela (di-liners tša terei, dikhurumetšo tša sealer ya phišo), e sego go phuthela dijo ka go lebanya. Le ka mohla o se ke wa šoma ntle le mošomo wa dijo (go ruthetša ka go oma). Bušetša legato ge e ba a na le makhopho, a serolane goba a apere.

Dikgomaretši tše di nago le kgatelelo ya silicone (PSA) tša ditheipi tša themperetšha ya godimo tša PTFE di fapana kudu ka tshepedišong ya go tšofala ya themperetšha ya godimo. Methylphenyl silicone PSA e boloka >85% ya maatla a go ebola ka morago ga 250°C/7 matšatši, mola mohuta wa methyl wa maemo o theogela go 50-70%. Ditshepedišo tše di fodišitšwego ka tlaleletšo (hydrosilylation) di fa go tsepama mo go kaone kudu go feta go fodišwa ka peroxide. Bakeng sa tirelo ye e tšwelago pele ya 200°C+, kgetha mephato ya phenyl ya godimo yeo e fodišitšwego ka tlaleletšo.

Ditheipi tša sekgomaretši sa go kwa kgatelelo ya PTFE (PSA) tšeo di swarago phišo di swanetše go swara phišo mola di dula di kgomaretše. Go oketša dilo tša go tlatša go kaonafatša go swara phišo eupša go gobatša go kgomarela. Tekatekano ye e loketšego e šomiša dikarolwana tše makgwakgwa tša nkgokolo (bjalo ka marapo a go swara) tšeo di hlakantšwego le dikarolwana tše botse (go tlatša diphapoši), go boloka palomoka ya go rwala ga filler ka godimonyana ga moedi wa percolation. Phema diphaphathi le ditlhale; ba bolaya tack.

PTFE phahameng-mocheso theipi sebeletsa PV indasteri ka dikarolo tse peli tse fapaneng: tshebetso consumable (thibela EVA overflow khomarela ka laminators, solder maske) le bophelo bo bolelele ba kwahelang (busbar phuthela, junction lebokose fixation). Bakeng sa tšhomišo ya ka gare ya sa ruri, ditheipi di swanetše go feta IEC 61215: 1000-2000h phišo ya monola, UV, go sepela ka dipaesekele tša phišo (-40°C go ya go +85°C), ka silicone PSA le go fokotšega <1%.

PTFE phahameng-mocheso theipi sebediswa ho mocheso-tiiso dithipa le tiiso hlobolisa fana ka boleng tse 'nè konokono: thibela qhibilihile polasetiki khomarela (felisa downtime), sireletsa theko e boima tiiso shoa, homogenizes mocheso / khatello bakeng sa tiiso e sa fetoheng, 'me fokotsa filimi khohlano. Theipi ye e thekgilwego ka fiberglass (0.13-0.25 mm) ka silicone PSA (≥260°C) e a kgothaletšwa. Anti-static batsho theipi bakeng sa mela e phahameng-lebelo.

Thepa ya lepheko la mouwane wa meetse ya theipi ya sekgomaretši ya PTFE e laolwa kudu ka diphošo tša go tlotša (micropores, microcracks, fiber wicking) go e na le PTFE ya ka gare ya hydrophobicity. Pure PTFE filimi fana ka feela mahareng WVTR. Multi-lera tlotsa le lamellar fillers (mica, khalase flakes) bopa phello labyrinth, haholo fokotsa phetiso mouoane. Bakeng sa go tiiša monola o mogolo, laetša di-coating tše di kitimago.