High-simba PTFE high-temperature jira inoumbwa nepamusoro-tenacity fiberglass uye PTFE coating. Makiyi ekushandisa anotora maindasitiri ekufambisa (kubika chikafu, kuomesa machira, kutakura PCB), kuchengetedzwa kwechivharo (kupisa-sealer mavhavha, spatter nhovo), dhizaini uye inopisa kuumba (rabha kuumba, PV lamination), magetsi ekuisa (motor slot liners, tambo wraps), architectural membranes (stadium matenga, 30 + kugadzirwa kwemakemikari makore), aerospace (magumbeze anopisa), uye akakosha maapplication (laser kucheka, 3D kudhinda).

Kuomesa inhanho yakakosha muPTFE yakakwirira-tembiricha yekugadzira machira. Zvikanganiso zvakajairika zvinosanganisira: kutsemuka (kunyanya kuomesa, kuomeswa kwepamusoro), kubhururuka kutama (zvimedu zvinofamba kumusoro, hukama hwemukati husina simba), pinholes / blisters (mhepo yakavharirwa kana mhepo), mavara machena uye chalking (kusimuka kwesurfactant kana kusakwana kusanganiswa), kutsvuka / kubikira (kupisa kwezvinowedzera), delamination (kudonha kana kunyungudika kweorenji) shrinkage), pasi pakaoma asi mukati memvura (kusvuura mateya unyoro), uye mipendero yakakora (kofi-ring effect). Mhinduro dzinosanganisira kudzora kuomesa profiles, kufefetedza kwakaringana, uye substrate pretreatment.

PTFE emulsion impregnation yemucheka wefiberglass inoda vabatsiri vakasiyana-siyana kuti vakwanise kupfekedza yunifomu, kunamatira kwakasimba, uye nzvimbo dzisina kukanganisa. Zvinowedzera zvekuwedzera zvinosanganisira: wetting agents (kuderedza kushushikana kwepasi, kunatsiridza kupinda), thickeners (control viscosity uye coating uremu), pH regulators (stabilize emulsion papH 9-10), silane coupling agents (kunamatirisa kune girazi), firimu-forming aids (PFA/FEP ye sintering), inoshanda mafirita (kupfeka mapikisi, maconductors ekudzivirira) (slow drying). Kusarudzwa kunoenderana ne substrate uye kuita zvinodiwa.

Yakawedzerwa fiberglass jira (yakawanda shinda yeshinda) inosiyana zvakanyanya kubva kune yakajairwa fiberglass jira mune yeshinda chimiro. Kuburikidza ne-high-pressure air jet treatment, inoenderera mberi girazi filaments inoparadzaniswa, crimped, uye fluffed kuita voluminous, donje-seshinda. Izvi zvinogadzira jira rakakora, rakapfava nepamusoro pekupisa kwemafuta (akavharirwa mhepo akaturikidzana), kuenderana kuri nani, kusefa kwepamusoro, uye nekunatsiridza kubvarura/kuchinjika kuramba - pamubhadharo wesimba rakaderera zvishoma. Inoshandiswa kune yakakwira-tembiricha gaskets, pombi wraps, mabhegi ekusefa, uye zvisimbiso zveoveni.

Raw material kuchena ndiyo hwaro hwePTFE yakakwirira-tembiricha machira kuita. High-purity PTFE emulsion (hapana simbi ions, hapana yakaderera-molecular-uremu residues) inovimbisa kupisa kupisa (pasina yellowing kusvika ku260 ° C), yakagadzikana isina tsvimbo, uye yakakwirira dielectric simba. Kune fiberglass, alkali-isina E-girazi (Na₂O <0.8%) inochengetedza simba uye kuvhara pakupisa kwakanyanya; yepakati/yakakwirira-alkali girazi inokonzera kuora. Kubviswa kwakazara kweanoruka saizi ejenti kunodzivirira carbonization uye delamination. Kuchena kunobata zvakananga hupenyu hwesevhisi, kutevedza kwegiredhi rekudya, uye kuvimbika kwemagetsi.

Kunyatsoomeswa kwejira refiberglass kwakakosha kune inotevera PTFE coating, resin impregnation, kana lamination. Mishonga mitatu mikuru: kubvisa unyoro pa 105-120 ° C (10-30 min zvichienderana nehuremu), dewaxing / thermal kuchenesa pa 300-450 ° C (LOI <0.1%, kudzivisa> 500 ° C), uye preheating pa 60-100 ° C isati yaputira. Dzora tembiricha yehovhoni kufanana (± 5°C), kumanikidzira kubvisa humidification, uye chengetedza machira ane silane ari pasi pe110°C. Chengetedza machira akaomeswa mumabhegi akavharwa kana makamuri akaoma (<30 ° C, <40% RH).

PTFE high-temperature fabric (PTFE-coated fiberglass) inenge ine makemikari inert, asi zvimwe zvinhu zvinokonzera kuora mumamiriro ezvinhu chaiwo. Kurwisa kwakananga kwePTFE kunoitika nesimbi yakanyungudutswa yealkali (sodium, potassium), yakasimba fluorinating agents (F₂, ClF₃) pakupisa kwakanyanya, uye alkalis akanyunguduka akasimba pamusoro pe300°C. Kuora kusina kunanga kunoitika kana hydrofluoric acid (HF), inopisa yakadzika alkalis, kana inopisa phosphoric acid ikapinda zvakakanganisika zvekupfeka uye kurwisa iyo fiberglass substrate. Nekunyanyisa kemikari sevhisi, shandisa yakachena PTFE firimu isina fiberglass.

PTFE high-temperature jira (PTFE-yakavharidzirwa fiberglass) ine yakanakisa kupisa kuvhunduka kwekudzivirira mukati meyakajairika kushanda kwayo kwe -70°C kusvika 260°C. Inogona kushivirira kukurumidza tembiricha bhasikoro, semuenzaniso, kufamba kubva -50 ° C firiza kuenda 260 ° C inopisa muchina. Magiredhi ePremium anopona nekukasira kutonhora kubva pa260°C kusvika pa10°C mvura. Zvisinei, kuvhundutsa zvinhu kubva tembiricha pamusoro 300°C (padyo PTFE's 327°C melting point) kuchaita nokukurumidza kutsemuka uye delamination. Iyo fiberglass substrate inopa dimensional kugadzikana; iyo PTFE coating ndiyo inomisa chinhu.

PTFE high-temperature jira rinoshandiswa zvakanyanya muindasitiri yemakemikari kune zvinomwe zvakakosha zvikumbiro: flange gaskets uye pombi linings (inodzivirira yakasimba acids / alkalis), reactor uye matangi linings (inodzivirira simbi kukora, kuchenesa nyore), mabhegi ekusefa ekuora gasi (kusvika 260 ° C), anti-corrosion yekuwedzera, machira ekuburitsa, majoini ekuburitsa machira. composite molding, uye yemagetsi/thermal insulation wraps. FDA uye UL mamakisi aripo.

PTFE high-temperature fabric (PTFE-coated fiberglass) inopa zvikomborero zvina zvakakosha se-anti-corrosion lining: kemikari inertness (inopesana ne aqua regia, alkalis yakasimba, zvinonyungudutsa), yakawanda yekushisa (-70 ° C kusvika 260 ° C inoenderera mberi, 350 ° C peak), dimensional kugadzikana (<0.5 uye kuchenesa kusinganzwisisike), kudzivirira kwepamusoro-soro, kuchenesa (kureba-kureba). Inoshandiswa mumakemikari mapaipi, desulfurization shongwe, pickling matangi, uye chikafu / mishonga yemishonga. FDA mamakisi aripo.