PTFE high-temperature fabric (PTFE-coated fiberglass) yakanakira mabhandi ekutakura chikafu nekuda kwekupisa kwayo 260°C, -70°C kutonhora kuchinjika, kusinga tsvinda, uye kutevedzera FDA. Mashandisirwo akakosha: maovheni ekubheka (mabhisikiti, chingwa, pitsa), kutakura chikafu chakakangwa, mitsara yekutonhodza maswiti, tunnel dzinoomesa nechando, zvivhariso zvekupisa, uye kuputira. Inoderedza tsvina uye nguva yekuchenesa.

Musoro wekupedzisa maajenti akaiswa kune jira refiberglass pamberi pePTFE coating yakakosha kune yekupedzisira PTFE yakakwirira-tembiricha machira kuita. Organosilane coupling agents inogadzira mabhiriji mamorekuru pakati peinorganic glass fiber uye organic PTFE, inowedzera masvuura simba kubva pa<2 N/cm kusvika 4-8+ N/cm. Kurapa kwakakodzera kunowedzerawo kupisa kupisa (260 ° C +), dielectric performance, uye makemikari kuramba. Mucheka usina kurapwa unotungamira kune delamination, kutubukira, uye hupenyu hupfupi hwesevhisi.

Warp uye weft density yefiberglass jira rinotarisa PTFE yakakwirira-tembiricha machira kuita. Yakakwira density inowedzera simba rekusimba uye kutsvedzerera kwepasi asi inoderedza simba rekubvarura (inverted U-curve), kuchinjika, uye kupinda mukati. Optimal density zviyero kupinza, kuramba kubvarura, kuchinjika, uye kupera kwepamusoro. Low density inokodzera kubhenda kunochinja; high density ye-non-stick uye insulation.

Calendering - kudzvanya PTFE-yakavharwa jira pakati peanopisa girazi rollers pa360-380 ° C - zvinonyanya kushandura morphology yepasi, kuburitsa zvimiro, kusamira, uye mashandiro emuchina. Iyo inoderedza roughness kubva kuRa 0.5-1.0 μm kusvika ku <0.05 μm, inovhara pinholes, inovandudza kupfeka kusagadzikana, asi inoderedza simba rekubvarura uye kushanduka. Zvakakosha pakusunungura liners uye magetsi ekudzivirira.

Fiberglass weave pattern - plain, twill, kana satin - inonyanya kukanganisa PTFE high-temperature machira emhando. Satin weave inopa simba repamusoro rekubvarura (2-3x bani) uye kuchinjika, yakanakira kukotama. Plain weave inopa yakanakisa dimensional kugadzikana uye peel adhesion, inokodzera static application. Twill inoenzanisa zvivakwa zvese zvekushandisa zvakajairika.

Coating uniformity yePTFE high-temperature jira inotarirwa nezvinhu zvina: coating formulation (particle size 0.15-0.35 μm, viscosity, solid content), coating & sintering process (blade coating inosarudzwa kuti ifanane), substrate quality (weave pattern, pre-treatment), uye nzvimbo yekugadzira (20-25% R <60). Dip + blade yakasanganiswa maitiro anoyera kupinda uye kutsetseka kwepamusoro.

Kuchenesa uye kugadzirisa kwakakodzera kunowedzera hupenyu hwePTFE high-temperature jira. Kuchenesa mushure mekushandisa uye mushure mekutonhora. Shandisa mabhurashi akapfava, simbi dzisina divi, kana doro kuitira tsvina. Usamboshandisa akasimba acids/alkalis, bleach, kana metal scrapers. Yenguva dzose silicone mafuta lubrication inoderedza kupfeka. Tevedzera izvi zvinongedzo kuti udzivise kukuvara kwejasi.

PTFE high-temperature jira uye silicone jira zvese zvinoshandisa fiberglass jira sechigadziko asi chinosiyana mukupfeka zvinhu (PTFE resin vs silicone rubber). PTFE inokunda mukusanamatira, kupfeka kuramba, uye makemikari kuramba kusvika 260°C. Silicone jira rinopa kuchinjika kwepamusoro, kuvharwa kwemagetsi, uye kudzivirira moto (kusvika 230 ° C). Sarudza zvichibva pane zvaunokoshesa.

PTFE yakakwira-tembiricha jira (PTFE membrane zvinhu) isarudzo yekutanga yekusimba kwekuvaka. Mabhenefiti akakosha: makore makumi matatu+ ehupenyu hwekunze, kuzvichenesa pamusoro (mvura inonaya inosuka tsvina), kutapurirana mwenje munyoro (6-13%), Chiyero chemoto cheKirasi A, uye simba rakaita sesimbi riri pasi pe1.5 kg/m². Inoshandiswa munhandare, nhandare dzendege, uye zvivakwa zvemifananidzo pasi rese.

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.