PTFE teyp a ɛyɛ hyew kɛse no wɔ nkyene a wɔde petepete so yiye, nanso nea ɛyɛ mmerɛw ne ade a wɔde nkata so ne fiberglass substrate no anoano. Akwan a wɔfa so yɛ nhwehwɛmu: 1000h neutral salt spray (NSS) sɔhwɛ, susuw peel ahoɔden a ɛkora so (≥80% a ɛho hia), aniwa mu sintɔ (ma so, blistering), ne dade substrate corrosion. Sɛ wopɛ po ne mmeae a nkyene nsuonwini pii wɔ mu a: fa silicone PSA (ɛnyɛ acrylic), PTFE substrate a wɔde ahyɛ mu ma koraa di dwuma, fa sealant a ɛko tia wim tebea kata anoano, na fa primer gu dade so.

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.

Wɔ PTFE teyp a ɛyɛ hyew kɛse wɔ bere tenten a wɔde hyɛ mu ase no, PTFE substrate no da so ara yɛ nea nnuru ntumi nyɛ adwuma, nanso ade a wɔde nkata so no ne ade a ɛyɛ mmerɛw. Nsu ma silicone PSA yɛ mmerɛw; nkyene nsu ma nkyene yɛ ntɛmntɛm. Wɔ nnuru a ɛyɛ den ho no, fluorosilicone anaa perfluoropolyether adhesives – anaasɛ PTFE tape a adhesive nnim – ho hia. Peel ahoɔden a ɛyera kodu 40% wɔ nnɔnhwerew 48 akyi wɔ nsu mu.

PTFE teapɔn a ɛyɛ hyew kɛse hwehwɛ sɛ wɔkora so yiye na ama akɔ so abata ho, ayɛ nsakrae, na ayɛ adwuma yiye. Nneɛma atitiriw a wɔhwehwɛ ne ɔhyew a wɔhwɛ so (10-30°C), ɔhyew a ɛba fam sen 60%, hann a wɔkwati, nnuru a wɔde bɛtew wɔn ho, nea wɔde besi hɔ gyina hɔ, ne mframa a wɔde bɛma. Di FIFO nneɛma a wɔakora so no sohwɛ akyi na hwɛ mu daa.

Krataa a wɔpaw anaasɛ film substrate ne release agent no nya storage stability ne peeling adwumayɛ a PTFE high-temperature tape no so nkɛntɛnso tẽẽ. Saa asɛm yi de PET vs. kraft krataa substrates ne silicone vs. fluorinated release agents toto ho, na ɛkamfo nkabom a eye sen biara ma zero-residue peeling ne bere tenten ahotoso.