PTFE emulsion impregnation ndiyo yakakosha maitiro ekugadzira PTFE high-temperature jira . Iyo base PTFE dispersion yega haigare yakanyorova, kupinda, kana kubatanidza zvakakwana kune fiberglass jira. Kuti uwane kupfekedzwa kweyunifomu, kunamatira kwakasimba, uye nzvimbo dzisina kukanganisa, vagadziri vanowedzera huwandu hwezvibatsiro zvinoshanda.
Aokai PTFE yakagadziridza maumbirwo ekuisa mukati mezvizhinji zvigadzirwa. Gwaro rino rinotsanangura zvisere zvinonyanya kuzivikanwa - zvavanoita, mashandiro avo, uye nguva yekuzvishandisa.
Kunyorova uye Kupinda Agents - Iyo Core Yekuwedzera
Raw PTFE emulsion ine tension yakakwira pamusoro, izvo zvinoita kuti isapinda mufiber nemachira. Wetting agents anoderedza kushushikana kwepamusoro, achibvumira emulsion kupararira uye kupinda mukati zvakanaka.
Type |
Mienzaniso |
Features |
Nonionic surfactants (mainstream) |
Fatty alcohol polyoxyethylene ethers (AEO series), alkyl polyglycosides (APG) |
Yakagadzikana, inopindirana zvakanyanya |
Fluorocarbon surfactants |
Chemours Capstone series (pfupi-cheni, PFOS/PFOA-isina) |
Ultra-yakaderera pamusoro tension, yakanakisa kupinda mukati yakaoma-kunyorova substrates. Doseji inofanirwa kudzorwa zvakanyanya kudzivirira kusvibisa mashandiro epasi mushure mekupisa. |
Key note: Fluorocarbon surfactants inoshanda zvakanyanya asi inoda kungwarira dosing. Yakawandisa inogona kutamira kune yekubikira pamusoro panguva yekupisa uye kuderedza kusashanda kwetsvimbo.
Thickeners uye Rheology Modifiers - Kudzora Coating Pick-Up
Mathickeners anogadzirisa emulsion viscosity kudzivirira kudonha uye kunyatso gadzirisa ukobvu hwekuputira.
Type |
Mienzaniso |
Features |
Cellulose ethers |
Hydroxyethyl cellulose (HEC), methyl cellulose (MC) |
Mvura-inonyungudika, inopisa zvachose panguva yekupisa |
Alkali-swellable acrylic thickeners (ASE) |
ASE series |
Kunyanya kushanda zvakanaka, kuchinjika thixotropy (isina neutralized nemvura yeammonia) |
Polyurethane associative thickeners (HEUR) |
HOUR mhando |
Yakanakisa kuyera, anti-splash |
Inorganic thickeners |
Inopfungaira silika, bentonite |
Wedzera thixotropy uye kupisa kupisa; inogona kuderedza kujeka kwekupfeka |
Zano rinoshanda: Pamachira akatetepa, mayunifomu pajira rakaomesesa, shandisa magadzirirwo e-low-viscosity ane mukobvu mushoma. Pamachira anorema kana machira akavhurika-weave, wedzera thickener kudzora kudzika kwekupinda.
pH Regulators uye Emulsion Stabilizers
PTFE emulsions inowanzogadziriswa neanionic surfactants uye inochengetwa pa pH 9-10 kudzivirira coagulation.
Ammonia mvura (28 wt%): Iyo inonyanya kushandiswa regulator. Iyo inoputika zvachose panguva yekuomesa / sintering, ichisiya pasina masara anokanganisa kuita.
Auxiliary stabilizers: Anionic surfactants yakadai se sodium dodecyl sulfate (SDS) uye yechipiri alkyl sulfonate (SAS) inovandudza shear resistance ye emulsion panguva yekupomba uye kushungurudzika.
Yakachena PTFE ine simba rakanyanya kusimba rekubatanidza rine substrates. Adhesion mapromota akakosha.
1. Silane coupling agents
Mienzaniso: Aminosilane (KH-550), epoxy silane.
Mechanism: Mushure mehydrolysis, vanogadzira zvisungo zvemakemikari nefiberglass - Si-O-Si zvisungo pakati pe silane negirazi, uye organic inoshanda mapoka anodyidzana nePTFE kana mamwe mapolymer.
Yambiro: Inofanirwa kuwedzerwa nekuchenjerera kudzivirira emulsion kutyora. Pre-hydrolysis kana post-treatment (kuisa kune jira kusati kwaiswa pamuviri) inokurudzirwa.
2. High-tembiricha inopikisa bonding resin dispersions
Mienzaniso: Kuparadzirwa mumvura kwe polyamide-imide (PAI), polyphenylene sulfide (PPS), polyethersulfone (PES).
Chishandiso: Zvishandiso zvepakati zvezvisina-tsvimbo zvekupotera uye zvakajairwa mabhainda ezvakaiswa fiberglass sefa media uye membrane zvinhu. Vanovandudza kunamatira uye kubatana mune yekupedzisira composite.
PTFE ine yakanyanya kunyungudika viscosity. Mafirimu-ekugadzira anobatsira anofambisa particle fusion panguva yekupisa.
Aya mafluoropolymers anonyunguduka anoumba zvikamu zvakanyungudutswa zvekubatanidza pakati pePTFE zvimedu panguva yekunyunguduka, inosimudzira coating compactness uye interfacial adhesion. Iwo anonyanya kubatsira kune akakora coatings kana kana yakaderera sintering tembiricha inodiwa.
Functional Fillers - Tsika Zvivakwa pane Demand
Mafirita anoparadzirwa zvakananga mu emulsion kuti ape chaiwo zvivakwa.
Filler Type |
Mienzaniso |
Chinangwa |
Kupfeka-resistant fillers |
Nano/micron alumina, silicon carbide, silica |
Kuvandudza abrasion resistance |
Conductive/antistatic fillers |
Carbon dema, graphite, kabhoni nanotubes (ine ma dispersants) |
Bvisa static charge |
Color pigments |
Iron oxide yakasviba, titanium dioxide |
Ruvara coding, UV kuramba |
Zvakakosha: Mafirita anoda akakodzera wetting dispersants (semuenzaniso, polycarboxylates) kudzivirira kusangana uye kuve nechokwadi chekugovera yunifomu.
Defoamers - Kudzivirira Pinholes
Kupupa kwakanyanya kunoitika panguva yekuzvitakura, zvichikonzera kukanganisa kwepini pane machira.
Type |
Features |
Silicone-isina defoamers (inoda) |
Polyether-based, mineral oil-based. Inobvisa njodzi yesilicone zvakasara zvichikanganisa kunamatira kwechipiri kana kurapwa kwepamusoro. |
Silicone defoamers |
Hune simba rekubvisa furo, asi kushandiswa kunogumira kune maapplication uko trace silicone residue inogamuchirwa. |
Kurudziro: Kune matepi ePTFE anozoshandiswa mukushanda kwepamusoro-soro kusungirirwa kana kupfekedza maapplication, silicone-isina defoamers inosarudzwa zvakanyanya.
Tevera high-boiling-point solvents kana polyols (propylene glycol, ethylene glycol) dzimwe nguva inowedzerwa kuti inonoke kubuda kwemvura uye kudzivirira kuputika kubva pakuoma nokukurumidza.
Zvakakosha: Izvi hazviwanzo shandiswa mukuita sintering, sezvo zvese organic zvikamu zvinofanirwa kuora zvizere panguva yekupisa. Kushandisa zvakanyanya kunogona kusiya masara ecarbon.
Pfupiso - Kusarudza Iyo Yakakodzera Yekubatsira Package
Chinangwa |
Inokurudzirwa Mubatsiri |
Kuvandudza wetting uye kupinda |
Nonionic kana fluorocarbon wetting agent |
Kudzora kuvhara uremu |
Thickener (selulosi kana HEUR) |
Kudzikamisa emulsion, kudzivirira coagulation |
pH regulator (ammonia mvura) + anionic stabilizer |
Simbisa PTFE-substrate bond |
Silane coupling agent kana PAI/PPS resin dispersion |
Kuvandudza magadzirirwo emufirimu, yakaderera sintering temp |
PFA kana FEP kupararira |
Wedzera kupfeka kuramba |
Alumina kana silicon carbide filler |
Wedzera conductivity |
Carbon dema, graphite, kana CNT |
Dzivirira pinholes kubva furo |
Silicone-isina defoamer |
Kuomeswa zvishoma nezvishoma kune machira akakora |
Humectant (propylene glycol) - shandisa zvishoma |
Aokai PTFE inogona kuumba tsika yekumisikidza musanganiswa kune chaiwo maapplication. Bata isu ne substrate yako, coating ukobvu chinodiwa, uye kuita zvinangwa.
Izvo zviri pamusoro apa zvinopihwa ne Jiangsu Aokai New Materials Technology Co., Ltd.
Kana iwe uchida kudzidza zvakawanda pamusoro pezvakatsanangurwa zvakatsanangurwa, mamiriro ekushandiswa uye zvigadziriso zvakagadzirirwa zvechigadzirwa chedu chizere, kusanganisira PTFE machira ekushisa, PTFE high-temperature matepi, PTFE mesh mabhandi, seamless bonding machine bhandi, single-sided PTFE jira, yakakwirira-tembiricha inodzivirira girasi rekutakura, uye bhanhire rinopikisa re-conveyor.
VaGuo: +86 18944819998
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