Yakakungurutswa PTFE tepi inogona kugadzira interlayer adhesion (kuvharira) uye adhesive kutamisa panguva yekuchengetedza kwenguva refu. Zvinokonzera: PTFE firimu elastic memory uye silicone PSA inokambaira pasi pekumanikidza / kupisa. Kudzivirirwa: gradient winding tension (yekunze yakamanikana, yemukati yakasununguka) panguva yekugadzira, pamwe nekuburitsa coating padivi risinganamire. Chengetedza pa -15 ° C kusvika 40 ° C, 30-70% RH, yakatwasuka pamaracks, tenderera rolls per quarter. Kune akakora adhesive mamakisi, wedzera kuburitsa bepa pakati pematanho.

PTFE high-temperature jira rinopa zvitanhatu zvakakosha zvakakosha sebhanhire rekudhinda: non-stick surface (printing paste uye inki kusunungurwa zvakachena), 260 ° C heat resistance (inoshanda kuomesa), dimensional kugadzikana (<0.5% elongation, kunyatsonyoreswa), kemikari inertness (inopikisa corrosive pastes), low friction, low friction (kutsika kwemavara), kutsika kwemavara, uye kutsika kwemavara anti-static). Yakanakira kudhinda skrini, kudhinda kwedhijitari, uye kupisa kwekufambisa maapplication.

Anti-static PTFE high-temperature jira rinobatanidza iyo isiri-tsvimbo, inodzivirira kupisa (260 ° C), uye kemikari inert zvimiro zveyakajairwa PTFE ine static-dissipative performance. Zvishandiso zvakakosha: kugadzirwa kwemagetsi (PCB lamination, component handling), PV module lamination (inodzivirira kukuvadzwa kweESD kumasero ezuva), chikafu nekugadzira mishonga (ESD-yakachengeteka baking liners), makemikari zvidyarwa (anti-corrosion, anti-static ducting), uye machira / maindasitiri ekudhinda. Kuramba kwepamusoro kazhinji 10⁶–10⁹ Ω.

PTFE high-temperature matepi akachengetwa ari roll form anogona kutambura kubva interlayer adhesion (kuvharira) uye adhesive kutamisa kune isiri-tsvimbo divi. Midzi inokonzeresa: PTFE firimu elastic memory uye silicone PSA inokambaira pasi pekumanikidzwa uye kupisa. Solution: gradient winding tension - yakasimba pamatanda ekunze, yakasununguka pazvikamu zvemukati - uchishandisa yakavharwa-loop tension control. Inopindirana nekuvhara kwekuburitsa, kuchengetedza kwakaringana (15-40 ° C, 30-70% RH), kuiswa kwakachinjika, uye kutenderera kwekota.

PTFE yakakwirira-tembiricha yejira sevhisi hupenyu hunosiyana zvakanyanya nekushandisa. Kemikari anti-corrosion lining inogona kugara makore matatu+ (4x kureba kupfuura rabha). Chikafu chekubika matireyi mwedzi yapfuura nekuderera kudiki. Industrial conveyor mabhandi anopfeka kubva mukukweshana. PV lamination (150°C, EVA kuonana) ine upenyu huri pakati nepakati. Heavy friction applications (abrasive discs) ine hupenyu hupfupi. Zvinhu zvakakosha: kudzora tembiricha (gara ≤260 ° C), dzivirira kutsemuka kwakapinza, kuchenesa nguva dzose, uye kutsiva panguva yakakodzera kana blistered kana yero.

PTFE high-temperature tepi inoshandiswa mukubata chikafu inofanira kuremekedza miganhu yetembiricha yakasimba: ≤260 ° C kuti irambe ichishandiswa (hapana muganhu wenguva), 260-300 ° C kusvika kumaminitsi makumi matatu chete, uye > 300 ° C inorambidzwa. Iyo tepi ndeyekubata zvisina kunanga chete (tray liners, heat sealer inovhara), kwete yakananga yekuputira chikafu. Usamboshanda pasina mutoro wekudya (dry heat). Tsiva kana yakatsvuka, yakatsvuka, kana yakasakara.

PTFE high-temperature fabric (PTFE-coated fiberglass) inogara kwenguva refu kana ichichengetwa pasi pe260°C, kure nezvinopinza, uye kucheneswa nemidziyo yakapfava. Zvinhu zvikuru zvinomisa upenyu: kuderera kwekushisa kwepamusoro pe260 ° C, kupisa kwekushisa kubva kukurumidza kupisa / kutonhora, kuneta kwemagetsi kubva pakukotama uye kukakavara, kurwisa kwemakemikari kubva kusimbi yakanyungudutswa yealkali kana maoxidizers akasimba, kukuvadzwa kubva kusimbi scrapers panguva yekuchenesa, uye UV kuratidzwa kwekushandisa kunze. Hunhu hwekuputira uye substrate zvakare hune basa.

PTFE high-temperature jira rinodzikama kusvika ku300°C, asi mumoto rinoora uye rinobudisa magasi ane muchetura: hydrogen fluoride (HF) (corrosive, pulmonary edema) uye perfluoroisobutylene (PFIB) (isina ruvara, isinganhuhwi, ~10x ine muchetura kupfuura phosgene, nododo). Zvakare kabhoni monoxide, PFOA zvisaririra, uye kutsvaga dioxins. Masikisi ehutsi akajairika haashande; shandisa self-contained breathing apparatus (SCBA). Zviratidzo zvinogona kunonoka.

Silicone pressure-sensitive adhesives (PSA) yePTFE high-temperature matepi anosiyana zvakanyanya mukuchembera kwakanyanya. Methylphenyl silicone PSA inochengetedza > 85% peel simba mushure me250 ° C / 7 mazuva, nepo standard methyl mhando inodonha kusvika 50-70%. Kuwedzera-kuporeswa (hydrosilylation) masisitimu anopa kugadzikana kuri nani pane peroksidi-yakarapwa. Nekuenderera mberi kwe200°C+ sevhisi, sarudza magiredhi ekuwedzera-akarapwa epamusoro-phenyl.

Thermally conductive PTFE pressure-sensitive adhesive (PSA) matepi anofanira kuitisa kupisa achiramba akanamatira. Kuwedzera mafirita kunonatsiridza kupisa conductivity asi kunokanganisa kunamatira. Optimal balance inoshandisa spherical coarse particles (se conductive skeleton) yakasanganiswa neakanaka zvimedu (kuzadza voids), ichichengeta yakazara mafirita kurodha pamusoro pechikumbaridzo chepercolation. Dzivisa flakes uye fibers; vanouraya simbi.