PTFE high-temperature matepi akachengetwa ari roll form anogona kutambura kubva interlayer adhesion (kuvharira) uye adhesive kutamisa kune isiri-tsvimbo divi. Midzi inokonzeresa: PTFE firimu elastic memory uye silicone PSA inokambaira pasi pekumanikidzwa uye kupisa. Solution: gradient winding tension - yakasimba pamatanda ekunze, yakasununguka pazvikamu zvemukati - uchishandisa yakavharwa-loop tension control. Inopindirana nekuvhara kwekuburitsa, kuchengetedza kwakaringana (15-40 ° C, 30-70% RH), kuiswa kwakachinjika, uye kutenderera kwekota.

PTFE high-temperature tepi inoshandiswa mukubata chikafu inofanira kuremekedza miganhu yetembiricha yakasimba: ≤260 ° C kuti irambe ichishandiswa (hapana muganhu wenguva), 260-300 ° C kusvika kumaminitsi makumi matatu chete, uye > 300 ° C inorambidzwa. Iyo tepi ndeyekubata zvisina kunanga chete (tray liners, heat sealer inovhara), kwete yakananga yekuputira chikafu. Usamboshanda pasina mutoro wekudya (dry heat). Tsiva kana yakatsvuka, yakatsvuka, kana yakasakara.

Silicone pressure-sensitive adhesives (PSA) yePTFE high-temperature matepi anosiyana zvakanyanya mukuchembera kwakanyanya. Methylphenyl silicone PSA inochengeta> 85% peel simba mushure me250 ° C/7 mazuva, nepo standard methyl mhando inodonha kusvika 50-70%. Kuwedzera-kuporeswa (hydrosilylation) masisitimu anopa kugadzikana kuri nani pane peroksidi-yakarapwa. Nekuenderera mberi kwe200°C+ sevhisi, sarudza magiredhi ekuwedzera-akarapwa epamusoro-phenyl.

Thermally conductive PTFE pressure-sensitive adhesive (PSA) matepi anofanira kuitisa kupisa achiramba akanamatira. Kuwedzera mafirita kunonatsiridza kupisa conductivity asi kunokanganisa kunamatira. Optimal balance inoshandisa spherical coarse particles (se conductive skeleton) yakasanganiswa neakanaka zvimedu (kuzadza voids), ichichengeta yakazara mafirita kurodha pamusoro pechikumbaridzo chepercolation. Dzivisa flakes uye fibers; vanouraya simbi.

PTFE high-temperature tepi inoshandira PV indasitiri mumabasa maviri akasiyana: process consumable (inodzivirira EVA kufashukira adhesion pane laminators, solder mask) uye refu-hupenyu insulation (kuputira bhasi, junction bhokisi fixation). Nechigarire kushandiswa kwemukati, matepi anofanira kupfuura IEC 61215: 1000-2000h yakanyorova kupisa, UV, thermal cycling (-40 ° C kusvika + 85 ° C), ine silicone PSA uye shrinkage <1%.

PTFE high-temperature tepi inoiswa kune kupisa-sealing mapanga uye sealing strips inopa mana akakosha kukosha: inodzivirira yakanyungudutswa yepurasitiki adhesion (inobvisa downtime), inodzivirira inodhura yekuisa chisimbiso inofa, homogenizes kupisa / kudzvanywa kwezvisimbiso zvinowirirana, uye inoderedza kukwesha kwefirimu. Fiberglass-backed tape (0.13-0.25 mm) ine silicone PSA (≥260 ° C) inokurudzirwa. Anti-static nhema tepi yemitsetse inomhanya-mhanya.

The water vapour barrier property yePTFE adhesive tepi inotariswa zvakanyanya nekukoira (micropores, microcracks, fiber wicking) pane PTFE's intrinsic hydrophobicity. Yakachena PTFE firimu inopa chete yepakati WVTR. Multi-layer coating uye lamellar fillers (mica, girazi flakes) inogadzira labyrinth mhedzisiro, inoderedza zvakanyanya kutapurirana kwemhute. Kuti uvhare hunyoro hwepamusoro, tsanangura densified coatings.

Creep resistance yePTFE high-temperature adhesive tape pasi pemutoro wenguva refu (kunyanya pa 200-260 ° C) inotarirwa nezvinhu zviviri: silicone PSA crosslink density (yakakwirira crosslinking inodzivirira kuyerera) uye substrate type (fiberglass-yakasimbiswa PTFE inopesana nechando chinokambaira; pure PTFE film creeps). Uncrosslinked adhesive inokundikana nekukurumidza pakupisa kukuru. Makobvu anonamira akaturikidzana anowedzera njodzi inokambaira.

Kune PTFE yakakwirira-tembiricha tepi inoshandiswa muabrasive sliding friction applications, standard non-stick uye heat resistance hazvina kukwana. Nzira dzakakosha dzekusarudza: Taber abrasion loss (<15 mg/1000 cycles), yakazadzwa yakagadziridzwa PTFE coating (carbon/graphite/MoS₂), PV limit data, substrate simba (≥200 N/cm), uye mating surface roughness (Ra 0.2-0.4 μm). Kudzivirirwa kwakaringana kwemupendero uye kubatana kwakazara kwakakosha kune hupenyu hurefu.

PTFE substrate inogara munyu pfapfaidzo inoshingirira (kunwa mvura <0.01%). Zvisinei, kushanda kwematepi kunoenderana nemhando yekunamatira: silicone PSA inomira munzvimbo dzegungwa (500-1000h salt spray test,> 80% peel retention); acrylic PSA inokundikana. Kurapwa kwakaringana kwepamusoro, kushandiswa kwebubble-isina, uye kuvharwa kwemupendero nesilicone sealant kwakakosha pakuvimbika kwenguva refu pamapuratifomu emahombekombe uye ngarava.