PTFE teapɔn a ɛyɛ hyew kɛse a wɔde asie wɔ roll kwan so no betumi ahu amane wɔ interlayer adhesion (blocking) ne adhesive transfer to the non-stick side. Ntini a ɛde ba: PTFE film elastic memory ne silicone PSA creep wɔ nhyɛso ne ɔhyew ase. Ano aduru: gradient winding tension – ɛyɛ den wɔ akyi layers, loose wɔ mu layers – de closed-loop tension control di dwuma. Complement ne release coating, storage a ɛfata (15-40°C, 30-70% RH), horizontal placement, ne quarterly roll rotation.

Ɛsɛ sɛ PTFE teapɔn a ɛyɛ hyew kɛse a wɔde di dwuma wɔ aduan a wɔde di nkitaho mu no di ɔhyew anohyeto a emu yɛ den so: ≤260°C ma wɔde di dwuma daa (bere anohyeto biara nni ho), 260-300°C kosi simma 30 pɛ, na wɔabara >300°C. Teyp no yɛ nea wɔde di nkitaho tẽẽ nkutoo (tray liners, heat sealer covers), ɛnyɛ aduan a wɔde kyekyere tẽẽ. Mfa adwuma nyɛ adwuma da a wunni aduan (dry heating). Sɛ akisikuru, ayɛ kɔkɔɔ, anaasɛ ayɛ mmerɛw a, sesa.

Silicone pressure-sensitive adhesives (PSA) ma PTFE ɔhyew kɛse teyp ahorow no gu ahorow kɛse wɔ ɔhyew a ɛkorɔn onyin adwumayɛ mu. Methylphenyl silicone PSA kura >85% peel ahoɔden wɔ 250°C/7 nna akyi, bere a standard methyl type no so tew kɔ 50-70%. Addition-cured (hydrosilylation) nhyehyɛe ahorow ma egyina pintinn yiye sen peroxide-cured. Sɛ wopɛ 200°C + som a ɛkɔ so a, paw ade a wɔde ka ho-cured high-phenyl grades.

Ɛsɛ sɛ PTFE pressure-sensitive adhesive (PSA) teyp a ɛma ɔhyew kɔ ɔhyew mu bere a ɛkɔ so yɛ nnam no. Sɛ wode fillers ka ho a, ɛma ɔhyew a ɛkɔ nipadua no mu no tu mpɔn nanso ɛyɛ adhesion yaw. Optimal balance de spherical coarse particles (sɛ conductive skeleton) afrafra fine particles (de ahyɛ voids ma), na ama total filler loading kɔ so tra percolation threshold no so pɛɛ. Kwati flakes ne nhama a wɔde hyɛ mu; wokum tack.

PTFE teapɔn a ɛyɛ hyew kɛse som PV nnwuma no wɔ dwumadi ahorow abien a ɛsono emu biara mu: adeyɛ a wɔde di dwuma (siw EVA a ɛboro so a ɛbata ho wɔ laminators so, solder mask) ne nkwa tenten a wɔde siw ano (busbar wrap, junction box fixation). Sɛ wode bedi dwuma daa wɔ mu a, ɛsɛ sɛ teapɔn no twa IEC 61215: 1000-2000h ɔhyew a ɛyɛ nwini, UV, ɔhyew kyinhyia (-40°C kosi +85°C), a silicone PSA ne shrinkage <1%.

PTFE teyp a ɛyɛ hyew a ɛkorɔn a wɔde gu nnade a wɔde sɔ ɔhyew ano ne nhama a wɔde hyɛ mu so no de nneɛma atitiriw anan ma: esiw plastic a wɔabɔ no a ɛbata ho no ano (eyi bere a wɔde gyae adwuma no fi hɔ), ɛbɔ nsɔano a ne bo yɛ den ho ban, ɛma ɔhyew/nhyɛso yɛ pɛ ma nsɔano a ɛkɔ so daa, na ɛtew film friction so. Wɔkamfo teyp a wɔde fiberglass akyi (0.13-0.25 mm) a silicone PSA (≥260°C) wom kyerɛ. Anti-static black tape ma nhama a ɛkɔ ntɛmntɛm.

Nsuo a ɛyɛ hyew akwansideɛ su a ɛwɔ PTFE adhesive tape no mu no, wɔde katasoɔ sintɔ (micropores, microcracks, fiber wicking) titire na ɛkyerɛ sene PTFE no mu nsuo a ɛyɛ hu. Pure PTFE sini de WVTR a ɛwɔ mfinimfini nkutoo ma. Multi-layer coating ne lamellar fillers (mica, glass flakes) ma labyrinth nkɛntɛnso, na ɛtew vapor transmission so kɛse. Sɛ wopɛ sɛ wode nsɔano a ɛyɛ nwini kɛse hyɛ mu a, kyerɛ nneɛma a wɔde kata so a ɛyɛ den.

PTFE a ɛyɛ hyew a ɛkorɔn adhesive tape no creep resistance wɔ bere tenten daa adesoa ase (titiriw wɔ 200-260°C) no, nneɛma abien na ɛkyerɛ: silicone PSA crosslink density (crosslinking a ɛkorɔn siw nsu a ɛsen) ne substrate type (fiberglass-reinforced PTFE gyina awɔw creep; pure PTFE film creeps). Adhesive a enni crosslinked no di nkogu ntɛmntɛm wɔ ɔhyew a ano yɛ den mu. Ntama a ɛyɛ den a wɔde nkata so no ma asiane a ɛwɔ hɔ sɛ wɔbɛwea no yɛ kɛse.

Wɔ PTFE ɔhyew a ɛkorɔn teyp a wɔde di dwuma wɔ abrasive sliding friction applications, gyinapɛn non-stick ne ɔhyew a ɛko tia no nnɔɔso. Nneɛma titiriw a wɔde paw: Taber abrasion a ɛyera (<15 mg/1000 cycles), PTFE a wɔde akata so a wɔasesa a wɔahyɛ no ma (carbon/graphite/MoS2), PV anohyeto data, substrate ahoɔden (≥200 N/cm), ne mating surface roughness (Ra 0.2-0.4 μm). Edge ahobammɔ a ɛfata ne bonding a edi mũ ho hia kɛse ma nkwa tenten.

PTFE substrate no fi awosu mu yɛ nea nkyene a wɔde petepete so (nsu a ɛtwetwe <0.01%). Nanso, teyp adwumayɛ nyinaa gyina adhesive type so: silicone PSA gyina po mu nneɛma a atwa yɛn ho ahyia ano (500-1000h nkyene a wɔde petepete sɔhwɛ ahorow,>80% peel retention); acrylic PSA no di nkogu. Nneɛma a wɔde di dwuma yiye wɔ asase ani, wɔde di dwuma a ɛnyɛ ahurututu, ne silicone sealant a wɔde bɛhyɛ anoano no ho hia kɛse ma ahotoso a ɛbɛtra hɔ bere tenten wɔ mpoano asɛnka agua ne nhyɛmma so.