PTFE daim kab xev rau cov yeeb nkab tshuaj / lub nkoj los tiv thaiv corrosion, tsis yog-stick, thiab kev tiv thaiv sealing yuav tsum muaj kev sib txuam substrate, nplaum nplaum, thiab cov tshuaj lom neeg. Silicone PSA raug pom zoo rau 200-260 ° C nrog acids / alkali; acrylic PSA tiv thaiv cov kuab tshuaj organic tab sis txwv qhov kub thiab txias rau ≤150 ° C. Rau HF, boiling> 80% alkali, los yog chlorine trifluoride, siv PTFE-tsuas hauv ob sab phlu (tsis muaj organic nplaum). Tseem ceeb: nplaum yog qhov txuas tsis muaj zog, tsis yog PTFE nws tus kheej.

PTFE daim kab xev tuav lub zog yog txhim kho los ntawm txheej txheej thiab kho txheej txheem optimization. Txheej: primer txheej (0.5-2μm silane primer tiv thaiv cov nplaum nplaum), nplaum tuab 30-60μm (zoo rau tuav lub zog), nqus defoaming, thiab 5-10μm pom. Curing: stepwise cua sov (80-100 ° C hnyav tshem tawm → 120-140 ° C shaping → 150-220 ° C sib sib zog nqus crosslinking), tom qab-kho (40-60 ° C rau 24-48h kom so kev ntxhov siab), thiab tsis tshua muaj kev thauj mus los los tiv thaiv kev ntxhov siab los ntawm substrate shrinkage. Cov primer yog qhov tseem ceeb rau PTFE lub zog qis.

PTFE high-temperature daim kab xev ua haujlwm tseem ceeb hauv kev tsim khoom semiconductor, tsis yog cov khoom siv dav dav. Cov ntawv thov tseem ceeb: wafer-theem kev tiv thaiv (plasma etching masking, CMP backside tiv thaiv, CVD / PVD masking), ntim txheej txheem (xov hlau fixation, soldering daim npog qhov ncauj rau PCBs), thiab cov khoom tu (anti-static roller wrapping, cleanroom marking). Ultra-huv yuav tsum tau: tsawg halogens (tiv thaiv daim ntawv cog lus ncoo corrosion), tsawg siloxanes (<500 ppm, tiv thaiv insulating particle tsim), uas tsis muaj hlau ions (<1 ppm txhua), ISO Class 4 cleanroom slitting / ntim, 10⁶-10⁹ Ω nto resistivity, thiab tsawg TVOC emissions.

Kev kho mob-qib PTFE high-temperature daim kab xev ua ke biocompatible PTFE substrate nrog platinum-kho silicone nplaum. Cov yam ntxwv tseem ceeb: ISO 10993 ua raws (tsis muaj cytotoxicity, rhiab heev, lossis khaus), tiv taus rov ua kom tsis muaj menyuam (chaw / EO / gamma), 260 ° C kub ua haujlwm. Kev ceev faj tseem ceeb: tsis txhob siab tshaj 260 ° C (cov pa phem tshaj 300 ° C), gamma irradiation yuav ua rau embrittlement, validate sterilization txoj kev, thiab thov kom tag nrho cov ntaub ntawv ua raws (ISO 10993 cov ntaub ntawv, MSDS, aging ntaub ntawv). Tsis yog siv rau cov ntshav ncaj qha los yog cog qoob loo tshwj tsis yog tias muaj kev lees paub tshwj xeeb.

PTFE daim kab xev reusability nyob ntawm plaub yam: nplaum formulation (siab crosslink ceev, tsis tshua muaj silicone migration, microphase qauv rau repositionable tack), substrate anchoring (surface activation + primer los tiv thaiv tag nrho cov nplaum hloov), backside txheej (tso txheej los tiv thaiv cov nplaum thaum lub sij hawm unwinding), thiab kev tuav kom zoo (ntxuav qhov chaw, huv si). Dej-ntxuav tau hloov kho cov nplaum tuaj yeem rov qab> 90% tack tom qab ntxuav.

Fiberglass npuag thermal shrinkage yog thawj qhov ua rau PTFE daim kab xev seem tsis ruaj khov. Ntawm PTFE sintering kub (360-400 ° C), residual weaving stress yog tso tawm. Yog tias tsis muaj kev txwv, cov ntaub shrinks; Yog tias txwv tsis pub, kev ntxhov siab latent raug kaw, ua rau tom qab shrinkage thaum lub sij hawm kho (150-200 ° C) thiab siv cua sov kawg. Kev daws: siv pre-heat-set fiberglass nrog <0.5% shrinkage ntawm 400 ° C, tshem tawm cov residual kev nyuaj siab ua ntej txheej.

Dav-temperature-range PTFE daim kab xev yuav tsum muaj silicone PSA uas tswj adhesion ntawm -70 ° C mus rau 260 ° C. Key design elements: primer-anchored transition layer (prevents delamination), sea-island microstructure (MQ resin islands + polysiloxane continuous phase), gradient crosslinking (high-density inner layer for creep resistance, low-density outer layer for low-temp tack), and heat-stabilized fillers (cerium oxide for oxidation resistance). Phenyl-modified siloxane ntu txo qis-kub crystallization, ua kom yooj yim hauv qab -100 ° C.

Aokai PTFE tau nthuav tawm nws cov khoom lag luam tag nrho ntawm APFE Shanghai 2026 (Lub Rooj Muag Khoom 6T602, Hall 6). Cov khoom tshwj xeeb muaj xws li fiberglass-reinforced PTFE tapes, ntshiab PTFE films, anti-static qib, thiab high-temperature conveyor siv - npog cov zaub mov, PV lamination, lithium roj teeb, electronics, thiab ntim. Lub exhibition pib mus txog rau lub rau hli ntuj 26. Tag nrho cov khoom txhawb kev cai specifications.

Qhov kawg ntawm lub ntsej muag qauv ntawm PTFE high-temperature daim kab xev ncaj qha cuam tshuam cov nplaum oozing thiab ntug lifting thaum lub sij hawm thov. Cov slitting tsis zoo (nplua nuj, lub kaum sab xis tsis zoo) tsim cov kua nplaum nplaum, thins lub ntug nplaum txheej, thiab nthuav tawm fiberglass burrs - ua rau oozing, tsis muaj zog, thiab nqa hauv qab cua sov lossis nro. Lub ntsej muag tsis sib xws (wavy, protruding) ua rau tsis sib xws ntawm kev faib tawm, tsav cov nplaum nplaum thaum khaws cia. Lub ntsej muag zoo tshaj plaws yog du, yaug, thiab tsis muaj kev puas tsuaj - ua raws li lub foob uas kaw cov nplaum thiab ua kom tag nrho cov ntug sib txuas.

Thaum lub sij hawm PTFE daim kab xev txheej, qhov hnyav volatilization tus nqi ntawm silicone siab-rhiab nplaum nplaum yog ib qho tseem ceeb ntawm cov txheej txheem parameter. Ceev dhau → deg skinning, tsis zoo leveling, pinholes (raug hnyav hnyav), thiab craters (condensation los yog contaminant-induced). qeeb dhau → sagging, tuab npoo, thiab dewetting ntawm qis-nto-zog PTFE. Qhov zoo tshaj plaws lub tswv yim: qeeb pib volatilization rau theem thiab npuas khiav, ces ceev kom qhuav rau shaping. Siv cov kuab tshuaj sib xyaw (toluene / xylene + ceev-drying) thiab gradient qhov cub kub (qis → nruab nrab → siab).