Ichi chinyorwa chinovhara core performance indicators yePTFE high-temperature tepi inoshandiswa muvacuum coating, vacuum heat treatment uye nharaunda dzakafanana. Zvinodiwa zvakakosha zvinosiyana zvakanyanya nekushandiswa kwemuchadenga: kubuda kunze kunonyanya kukosha (TML≤1%, CVCM≤0.1%; aerospace / optical mamakisi anoda TML≤0.5%, CVCM≤0.01%); tembiricha kuramba kunofanira kusimbiswa kune ese ari maviri PTFE substrate (260 ° C) uye adhesive layer; yakanyatsocheneswa yakaderera-outgassing silicone PSA inodiwa kudzivirira siloxane kusvibiswa; high-temperature inobata simba inodzivirira kukambaira uye kusimudza kumucheto; utsanana hunoda kusabvisa fiber uye pasi ionic content; anti-static tepi (pamusoro resistivity 10⁶-10⁹ Ω/sq) inodzivirira ESD kukuvara; plasma kuramba kunofanirwa kuongororwa kune sputtering / PECVD maitiro; thermal shrinkage pazasi 2% inovimbisa masking chaiyo.

Ichi chinyorwa chinofananidza kamuri-tembiricha uye yakakwirira-tembiricha maturation yesilicone pressure-sensitive adhesive yePTFE tepi. High-temperature maturation (120-180 ° C) inogadzira dense crosslinked network ine simba rakasimba rakabatana, kudzivirira zvakasara zvakanamatira mushure mekusvuura. Iyo inoumba makemikari anchoring zvisungo nePTFE substrates kuburikidza ne primer co-kurapa, kubvisa delamination njodzi. High-temperature maturation inobvisawo low-molecular volatiles isati yasununguka, kudzivirira kuputika uye kusvibiswa kwesilicone mafuta panguva yekutanga kupisa.

Iri gwara rinovhara PTFE yakakwira-tembiricha tepi kusarudzwa kwejekiseni kuumba kudhonzwa uye anti-stick application. Kusarudzwa kwekushisa-based: ≤260 ° C kune mapurasitiki akawanda (standard silicone PSA tape, 0.13-0.18mm); 260-300 ° C yepamusoro-tembiricha engineering mapurasitiki sePC, PA66, POM (yakakwirira-temp silicone adhesive, 0.18-0.25mm); 300-400 ° C yePEEK, LCP, PPS pedyo nevamhanyi vanopisa (tepi yekunamatira inokundikana; shandisa jira risina pepa rePTFE kana PFA firimu). Material-based sarudzo: tacky zvinhu zvinoda yakakwirira-kuburitsa yakachena PTFE nzvimbo; girazi/mineral yakazadzwa zvinhu zvinoda inorema-basa 0.25mm+ kupfeka-resistant tepi; corrosive additives inoda makemikari anonamira uye dense substrate; static-sensitive applications inoda anti-static black PTFE tepi.

PTFE-yakavharidzirwa fiberglass jira rinoshandiswa zvakanyanya mukugadzira rabha nekuda kwekupisa kwayo, isiri-tsvimbo pfuma, uye yakaderera friction. Zvishandiso zvakakosha zvinosanganisira: kuburitsa liner dzeplate/vacuum vulcanization uye kuumba matayi; mabhandi ekutakura asina tsvimbo ezvigayo zvakavhurika, makarenda, uye mitsetse yekutonhodza; jira rinopindirana rekuchengetedza semi-yakapedza rubber; kunyanya kubata silicone uye fluororubber; uye matireyi ovheni ekuti apedze kupora. Mabhenefiti anosanganisira kubvisa mold adhesion, kudzikisa kuburitsa mumiriri kushandiswa, kudzivirira kuputira roller, uye kuve nechokwadi chekudhirowa kwakanaka.

PTFE tepi yekemikari pombi/mudziyo anti-corrosion, isiri-tsvimbo, uye chisimbiso kudzivirira kunoda kuenzanisa substrate, adhesive system, uye makemikari media. Silicone PSA inokurudzirwa 200-260 ° C ine acids / alkalis; acrylic PSA inopikisa organic solvents asi inomisa tembiricha kusvika ≤150°C. PaHF, kufashaira >80% alkali, kana chlorine trifluoride, shandisa PTFE-chete lining (hapana organic adhesive). Yakakosha: kunamatira ndiyo isina kusimba chinongedzo, kwete iyo PTFE pachayo.

PTFE tepi inobata simba inovandudzwa kuburikidza nekuvhara uye kurapa maitiro ekugadzirisa. Coating: primer layer (0.5-2μm silane primer inodzivirira kunama peeling), adhesive ukobvu 30-60μm (yakanyanya kubata simba), vacuum defoaming, uye 5-10μm kusefa. Kurapa: kudziyisa kwakadzika nhanho (80-100°C kubviswa kwe solvent → 120-140°C kuumba → 150-220°C deep crosslinking), post-curing (40-60°C for 24-48h to relax stress), uye low-tension conveyance kudzivirira kushushikana kwemukati kubva substrate shrinkage. Iyo yekutanga yakakosha kune PTFE yakaderera pamusoro pesimba.

PTFE high-temperature tepi inoshanda sechinhu chakakosha mukugadzira semiconductor, kwete general-purpose consumable. Zvishandiso zvakakosha: wafer-level dziviriro (plasma etching masking, CMP backside protection, CVD/PVD masking), nzira dzekurongedza (waya bonding fixation, soldering mask yePCBs), uye kugadzirisa midziyo (anti-static roller kuputira, kucherekedza mukamuri yekumaka). Ultra-yakachena zvinodiwa: yakaderera halogens (inodzivirira bond pad corrosion), yakaderera siloxanes (<500 ppm, inodzivirira insulating particle formation), low metal ions (<1 ppm imwe neimwe), ISO Class 4 cleanroom slitting/packaging, 10⁶-10⁹ Ω pasi pepamusoro peOC resistivity, uye low TV surface resistivity.

Medical-giredhi PTFE yakakwirira-tembiricha tepi inosanganisa biocompatible PTFE substrate ine platinamu-yakapora silicone adhesive. Zvinhu zvakakosha: ISO 10993 inoenderana (hapana cytotoxicity, sensitization, kana kushatirwa), inoshingirira kudzokororwa sterilization (steam/EO/gamma), 260°C kupisa kuramba. Chengetedzo dzakakosha: usapfuure 260°C (hutsi hunokachidza huri pamusoro pe300°C), gamma irradiation inogona kukonzera kubvongodzwa, kusimbisa nzira dzesterilization, uye kukumbira magwaro ekutevedza akazara (ISO 10993 mishumo, MSDS, data yekuchembera). Kwete yeropa rakananga kana kushandiswa kwekuisirwa kunze kwekunge kwakanyatso kusimbiswa.

PTFE tepi reusability inoenderana nezvinhu zvina: adhesive formulation (yakakwira crosslink density, yakaderera silicone migration, microphase chimiro che repositionable tack), substrate anchoring (pamusoro activation + primer kudzivirira yakazara adhesive kutamiswa), kuseri kwekuvhara (kuburitsa layer kuchengetedza adhesive panguva yekusunungura), uye kubata kwakaringana (yakachena-inonamatira tekinoroji, kudzivirira kwakachena nzira yekunamira). Mvura-inogezwa yakagadziridzwa inonamira inogona kupora> 90% tack mushure mekuchenesa.

Yakakura-tembiricha-yakasiyana-siyana PTFE tepi inoda silicone PSA inochengetedza kunamatira kubva -70°C kusvika 260°C. Makiyi ekugadzira zvinhu: primer-anchored transition layer (inodzivirira delamination), sea-island microstructure (MQ resin zvitsuwa + polysiloxane inoenderera nhanho), gradient crosslinking (yakakwirira-density yemukati layer yezvinokambaira, yakaderera-density yekunze layer kune yakaderera-temp tack), uye kupisa-yakagadzikana mafiritsi (cerium oxide). Phenyl-modified siloxane segments inodzvinyirira yakaderera-tembiricha crystallization, ichigonesa kuchinjika pazasi -100°C.