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.

PTFE fiberglass tepi inoda zvitupa zvitatu zvakakosha zvekuchengetedza: UL (kuchengetedzwa kwemagetsi nemurazvo), FDA (kuenderana kwechikafu), uye ISO 9001: 2015 (mhando yekutonga). Matepi akasimbiswa anopa kuita kwakafanana, hupenyu hwesevhisi hurefu, uye mutengo wakaderera wevaridzi kunyangwe mutengo wepamberi wepamusoro. Gara uchisimbisa zvitupa zvakananga nemasangano anoburitsa.

PTFE high-temperature tepi inoshandiswa pamativi matatu ekurapwa kwemishonga: kudzivirira midziyo yekudzivirira (autoclave trays, heat-seal packaging), chiridzwa chepamusoro kurapwa (low-friction coating, electrical insulation), uye midziyo inoisirwa (vascular grafts, sutures). Biocompatibility inosimbiswa kuburikidza neISO 10993, uye FDA 21 CFR 177.1550 inogadza hwaro hwekuchengetedza zvinhu.

PTFE high-temperature tepi ine kushomeka kwekudzivirira kune ionizing mwaranzi. Pakungoratidzwa kwe1 kGy gamma, simba rekusimba rinodonha kusvika ~ 25% yepakutanga. Inokodzera chete kune yakaderera-dose nharaunda (chikafu / chekurapa sterilization <10 kGy). Kune indasitiri yenyukireya kana spacecraft, shandisa polyimide kana PEEK pachinzvimbo.

Kune PTFE yepamusoro-tembiricha matepi pasi pekunyudzwa kwenguva refu, iyo PTFE substrate inoramba iine chemikemikari inert, asi iyo yekunamatira layer ndiyo isina simba. Mvura inopedza silicone PSA; mvura yemunyu inokurumidza kuita ngura. Kune makemikari ane hukasha, fluorosilicone kana perfluoropolyether adhesives - kana adhesive-isina PTFE tepi - inodiwa. Peel simba kurasikirwa kusvika ku40% mushure memaawa makumi mana nemasere mumvura.

PTFE high-temperature tepi inoshandiswa mumapurogiramu ekutsvaga kwezvokudya inofanira kugara mukati memiganhu yakatsanangurwa yekushisa: ≤260 ° C kuti irambe ichishandiswa, ≤300 ° C kwepamusoro pepamusoro (maminitsi), uye isingambopfuuri 327 ° C (kuora). FDA neEU mirau haitsanangure nguva yakatarwa - nguva yakachengeteka yekubata inoenderana nekupisa uye inofanirwa kusimbiswa nemiedzo yekufambisa inoteedzera mamiriro chaiwo.