Iyo tembiricha yegirazi yekuchinja (Tg) yesilicone yekumanikidza-inonzwa inonamira yakatenderedza -120 ° C - yakadzikira zvakanyanya kupfuura acrylic adhesives. Iyi ultra-low Tg inochengeta PTFE yakakwirira-tembiricha tepi ichichinjika uye inonamira kunyange pa -70 ° C, ichidzivirira brittle kuputika uye kugonesa kunamatira kwakavimbika mune cryogenic application.

PTFE high-temperature tepi inogona kutsemuka kana kutyoka pasi pekudzokorora kukotama uye kuvhura mamiriro. Ichi chinyorwa chinotsanangura maitiro ekudzivirira izvi kuburikidza nekwakakodzera substrate kusarudzwa (girazi faibha yakasimbiswa), yakakwana ukobvu (0.18mm seyakajairwa), silicone adhesive sarudzo, uye nzira dzekuisa dzakaringana.

PTFE high-temperature jira inopa yakasarudzika kemikari kuramba, inoshingirira maasidhi akasimba, alkalis, organic solvents, uye magasi anoparadza. Ichi chinyorwa chinodonongodza zvinhu zvayo zvinoramba, zvisingakwanisi (simbi yakanyungudutswa yealkali, yakasimba fluorinating agents), uye zvinhu zvakakosha senge tembiricha, kutarisisa, uye kushushikana kwemagetsi.

Sarudzo yepepa rekuburitsa kana firimu substrate uye mumiriri wekuburitsa zvinokanganisa kugadzikana kwekuchengetedza uye peeling kuita kwePTFE yakakwirira-tembiricha tepi. Ichi chinyorwa chinofananidza PET vs. kraft paper substrates uye silicone vs. fluorinated release agents, inokurudzira kusanganiswa kwakakwana kwezero-residue peeling uye kuvimbika kwenguva refu.

PTFE high-temperature matepi anoshandiswa zvakanyanya pakuvhara magetsi, asi high-frequency uye high-voltage mamiriro ezvinhu anokonzera njodzi dzakasiyana-siyana: kuparara kwemagetsi, kubuda zvishoma, kuchembera kwekushisa, kurasikirwa kwechiratidzo chepamusoro, uye kunzwa kwezvakatipoteredza. Chinyorwa chino chinotsanangura njodzi yega yega uye nzira yekuinzvenga nayo.

PTFE impregnation haina kugumira kune fiberglass jira. Ichi chinyorwa chinosuma 7 mamwe ma substrates - aramid, carbon fiber, PBI, porous simbi, graphite, asbestos (pased out), uye ceramic fillers - ine maitiro avo maitiro, zvakanakira, zvisingakwanisi, uye zvakakosha mashandisirwo.

Mucheka unofema wakanyanya PTFE wepamusoro-tembiricha unobatanidza zvinhu zvisiri-tsvimbo, kugadzikana kwekupisa, uye kupenya kwemhepo. Ichi chinyorwa chinoongorora mashandisirwo ayo akakosha mukuomesa machira, kugadzira chikafu, kugadzira komputa, zvemagetsi, pneumatic conveying, kuchengetedza kwezvakatipoteredza, uye zvekuvakisa.

Ichi chinyorwa chinotsanangura nzira yekudzivirira kusvibiswa uye kukanganisa kwekushanda kune iyo isina-adhesive side yePTFE high-temperature tepi panguva yekuputira. Mazano akakosha anosanganisira kudzora sosi (chaiyo yepamusoro kurapwa), kuzviparadzanisa nevamwe (mafirimu ekudzivirira, asiri-tsvimbo rollers, zoned drying), uye yakanatswa maitiro manejimendi.

Ichi chinyorwa chinotsanangura kuti sei alkali-isina fiberglass jira riri iro rinofarirwa substrate yePTFE yakakwirira-tembiricha jira. Iyo inovhara kemikari kusungirirwa kuburikidza ne silane coupling agents uye akakosha emuviri zvimiro senge kugadzikana kwemafuta, kugadzikana kwedimensional, uye kuramba kwecorrosion - kuve nechokwadi chekuita kwenguva refu munzvimbo dzakaoma.

Kuisa PTFE tepi yepamusoro yekushisa zvakasimba panzvimbo yakakomberedzwa uye isina kujairika isina mafuru uye kumucheto kuchinjika, chirongwa chakamisikidzwa chekushanda chakakosha, kusanganisira kunyatsogadzirisa substrate pretreatment, hunyanzvi hwekushandisa uye matanho akakodzera ebetsero. Pakati pavo, substrate pretreatment ndiyo nhanho inonyanya kukosha, iyo inosarudza nezve 70% yekupedzisira yekunamatira maitiro.