PTFE obutambi obw’ebbugumu eringi obuterekeddwa mu ngeri y’omuzingo busobola okutawaanyizibwa okunywerera wakati wa layeri (okuzibikira) n’okukyusa okwesiiga ku ludda olutakwata. Ebikoola ebivaako: PTFE film elastic memory ne silicone PSA creep wansi wa puleesa n’ebbugumu. Ekigonjoola: okusika omuguwa mu bbanga (gradient winding tension) – kunywevu ku layers ez’ebweru, okusumululwa ku layers ez’omunda – nga okozesa okufuga okusika kwa closed-loop. Okujjuliza n’okusiiga okusumulula, okutereka obulungi (15-40°C, 30-70% RH), okuteeka mu bbanga, n’okukyusakyusa omuzingo buli luvannyuma lwa myezi esatu.

PTFE ttaapu ey’ebbugumu eringi ekozesebwa mu kukwatagana n’emmere erina okussa ekitiibwa mu kkomo ly’ebbugumu erikakali: ≤260°C okukozesebwa obutasalako (tewali kkomo ku budde), 260-300°C okumala eddakiika eziwera 30 zokka, ne >300°C ekugirwa. Tape eno ya kukwatagana butereevu kwokka (tray liners, heat sealer covers), so si kuzinga mmere butereevu. Tokolangako nga tolina mmere (dry heating). Kikyuseemu singa oba olina ebizimba, ebya kyenvu oba ebyambala.

Silicone pressure-sensitive adhesives (PSA) ku PTFE obutambi obw’ebbugumu eringi zaawukana nnyo mu kukola kw’okukaddiwa okw’ebbugumu eringi. Methylphenyl silicone PSA ekuuma amaanyi g’ebikuta >85% oluvannyuma lwa 250°C/ennaku 7, ate ekika kya methyl ekya bulijjo kikka okutuuka ku 50-70%. Enkola eziwonyezebwa (addition-cured) (hydrosilylation) ziwa okutebenkera okulungi ennyo okusinga okuwonyezebwa perokisayidi. Okusobola okuweereza obutasalako ku 200°C+, londa ebika bya phenyl ebingi ebiwonye n’okugattako.

Obutambi obutambuza ebbugumu obwa PTFE pressure-sensitive adhesive (PSA) bulina okutambuza ebbugumu nga busigala nga bukwatagana. Okwongerako ebijjuza kiyamba okutambuza ebbugumu naye kiruma okunyweza. Bbalansi ennungi ekozesa obutundutundu obunene obw’enkulungo (nga amagumba agatambuza) obutabuddwamu obutundutundu obutono (okujjuza ebifo ebitaliimu), okukuuma okutikka kw’ekijjuza kwonna waggulu ddala w’omusingi gw’okukulukuta. Weewale ebikuta n’ebiwuziwuzi; batta tack.

PTFE high-temperature tape eweereza PV amakolero mu mirimu ebiri egy’enjawulo: enkola consumable (okuziyiza EVA overflow adhesion ku laminators, solder mask) n’obulamu obuwanvu insulation (busbar wrap, junction box fixation). Okusobola okukozesebwa munda enkalakkalira, obutambi bulina okuyita mu IEC 61215: ebbugumu ery’obunnyogovu 1000-2000h, UV, enzirukanya y’ebbugumu (-40°C okutuuka ku +85°C), nga silikoni PSA n’okukendeera <1%.

PTFE high-temperature tape essiddwa ku bbugumu-siba ebiso n’okusiba emiguwa etuwa emiwendo ena emikulu: okuziyiza okusaanuuka obuveera okunywerera (okumalawo downtime), okukuuma okusiba okufa okw’ebbeeyi, homogenizes ebbugumu / puleesa okusobola okusiba obutakyukakyuka, era okukendeeza firimu okusikagana. Teepu eriko fiberglass-backed tape (0.13-0.25 mm) nga eriko silicone PSA (≥260°C) ye kirungi. Anti-static black tape ku layini ez’amaanyi.

Eky’obugagga ekiziyiza omukka gw’amazzi ekya PTFE adhesive tape kisalibwa okusinga okusinziira ku buzibu bw’okusiiga (micropores, microcracks, fiber wicking) okusinga PTFE’s intrinsic hydrophobicity. Pure PTFE film egaba WVTR eya wakati yokka. Okusiiga okw’emitendera mingi n’okujjuza lamellar (mica, glass flakes) bikola ekikolwa kya labyrinth, ekikendeeza nnyo ku kutambuza omukka. Ku kusiba obunnyogovu obungi, laga ebizigo ebizitowa.

Obuziyiza okuseeyeeya (creep resistance) bwa PTFE high-temperature adhesive tape wansi w’omugugu ogutakyukakyuka ogw’ekiseera ekiwanvu (naddala ku 200-260°C) busalibwawo ensonga bbiri: silicone PSA crosslink density (okusalasala okw’amaanyi kuziyiza okukulukuta) n’ekika kya substrate (fiberglass-reinforced PTFE resists cold creep; pure PTFE film creeps). Uncrosslinked adhesive eremererwa mangu ku bbugumu eringi. Layers ezisiiga enzito zongera ku bulabe bw’okuseeyeeya.

Ku PTFE high-temperature tape ekozesebwa mu abrasive sliding friction applications, standard obutakwata n’okuziyiza ebbugumu tebimala. Emisingi emikulu egy’okulonda: Okufiirwa kw’okusika kwa taber (<15 mg/1000 cycles), okusiiga kwa PTFE okukyusiddwa okujjuza (carbon/graphite/MoS2), data ya kkomo lya PV, amaanyi ga substrate (≥200 N/cm), n’obukaluba bw’okungulu kw’okugatta (Ra 0.2-0.4 μm). Okukuuma obulungi ku mbiriizi n’okukwatagana mu bujjuvu kikulu nnyo okusobola okuwangaala.

PTFE substrate mu butonde egumira omunnyo okufuuyira (okunyiga amazzi <0.01%). Naye, okutwaliza awamu omulimu gwa tape gusinziira ku kika ky’ekyesiiga: silicone PSA egumira embeera z’ennyanja (500-1000h salt spray tests,>80% peel retention); acrylic PSA eremereddwa. Okulongoosa obulungi kungulu, okusiiga nga tolina bubble, n’okusiba ku mabbali n’ekiziyiza kya silicone kikulu nnyo okusobola okwesigamizibwa okumala ebbanga eddene ku bifo n’amaato ag’oku nnyanja.