I-PTFE emulsion impregnation yinkqubo engundoqo yokuvelisa Ilaphu le-PTFE lobushushu obuphezulu . Isiseko se-PTFE sokusasazeka iyodwa ayisoloko imanzi, ingena, okanye idityaniswe ngokugqibeleleyo kwilaphu lefiberglass. Ukufezekisa ukugqoka okufanayo, ukunamathela okuqinileyo, kunye neendawo ezingenasiphako, abavelisi bongeza uluhlu lwezinto ezincedisayo ezisebenzayo.
I-Aokai PTFE iye yalungiselela ukwenziwa kweendlela zokumitha kwiimveliso ezininzi. Esi sikhokelo sichaza awona mancedo asibhozo axhaphakileyo - akwenzayo, asebenza njani, kwaye asetyenziswe nini.
Ukumanzisa kunye nee-Agents eziNgenayo-I-Core Additive
I-emulsion ye-PTFE ekrwada inoxinzelelo oluphezulu lomphezulu, nto leyo ekhokelela ekungenweni kakuhle kwimicu kunye namalaphu. Ii-agent zokumanzisa zinciphisa ukuxhatshazwa komhlaba, ukuvumela i-emulsion ukuba isasazeke kwaye ingene ngokufanelekileyo.
Uhlobo |
Imizekelo |
Iimbonakalo |
Ii-nonionic surfactants (eziqhelekileyo) |
Iifatty alcohol polyoxyethylene ethers (AEO series), alkyl polyglycosides (APG) |
Izinzile, iyahambelana ngokubanzi |
Fluorocarbon surfactants |
Uchungechunge lweChemours Capstone (ikhonkco elifutshane, PFOS/PFOA-free) |
Ukuxinezeleka komphezulu ophantsi kakhulu, ukungena okugqwesileyo kwi-substrates enzima ukuya kumanzi. Idosi kufuneka ilawulwe ngokungqongqo ukunqanda ukuthoba umgangatho wokusebenza komphezulu emva kokutshiza. |
Inqaku eliphambili: Ii-Fluorocarbon surfactants zisebenza kakhulu kodwa zifuna ithamo ngononophelo. Ukugqithisa kunokufudukela kwindawo yokugquma ngexesha lokutshiza kunye nokunciphisa ukusebenza okungabambekiyo.
I-Thickeners kunye ne-Rheology Modifiers-Ukulawula i-Coating Pick-Up
I-Thickeners ilungisa i-emulsion viscosity ukunqanda ukuvuza kunye nokulawula ngokuchanekileyo ubukhulu bokugquma.
Uhlobo |
Imizekelo |
Iimbonakalo |
I-cellulose ethers |
I-Hydroxyethyl cellulose (HEC), i-methyl cellulose (MC) |
Ukunyibilika kwamanzi, kutshiswe ngokupheleleyo ngexesha lokutshisa |
Ialkali-swellable acrylic thickeners (ASE) |
ASE series |
Ukusebenza okuphezulu, i-thixotropy eguquguqukayo (engathathi hlangothi ngamanzi ammonia) |
I-Polyurethane associative thickeners (HEUR) |
HOUR iindidi |
Umgangatho ogqwesileyo, anti-splash |
Iinorganic thickeners |
I-silica evuthayo, i-bentonite |
Ukuphucula i-thixotropy kunye nokumelana nobushushu; inokunciphisa ukucaca kwengubo |
Ingcebiso esebenzayo: Kwilaphu elilukiweyo elibhityileyo, sebenzisa i-low-viscosity formulations kunye ne-thickener encinci. Kwiingubo ezinzima okanye amalaphu e-open-weave, yongeza i-thickener ukulawula ubunzulu bokungena.
Abalawuli be-pH kunye ne-Emulsion Stabilizers
I-emulsions ye-PTFE ngokubanzi iqiniswa ngama-anionic surfactants kwaye igcinwe kwi-pH 9-10 ukuthintela ukudibanisa.
Amanzi ammonia (28 wt%): Esona silawuli sisetyenziswa kakhulu. Iguquguquka ngokupheleleyo ngexesha lokumisa / ukuthambisa, kungashiyi ntsalela ebeka esichengeni ukusebenza.
Abancedisi be-stabilizers: I-Anionic surfactants efana ne-sodium dodecyl sulfate (SDS) kunye ne-alkyl sulfonate yesibini (SAS) iphucula ukuxhathisa kwe-shear ye-emulsion ngexesha lokupompa kunye nokuphazamiseka.
I-PTFE esulungekileyo inamandla okudibanisa abuthathaka kakhulu kunye neendawo ezincinci. Izikhuthazi zokuncamathela zibalulekile.
1. I-Silane coupling agents
Imizekelo: Aminosilane (KH-550), epoxy silane.
I-Mechanism: Emva kwe-hydrolysis, benza izibopho zeekhemikhali kunye ne-fiberglass - iibhondi ze-Si-O-Si phakathi kwe-silane kunye neglasi, kunye namaqela asebenzayo e-organic asebenzisana ne-PTFE okanye ezinye iipolymers.
Isilumkiso: Kufuneka wongezwe ngononophelo ukuphepha ukuphuka kwe-emulsion. I-pre-hydrolysis okanye i-post-treatment (ukusetyenziswa kwelaphu ngaphambi kokukhulelwa) iyacetyiswa.
2. High-ubushushu resistant bonding dispersions resin
Imizekelo: Ukusasazwa kwamanzi epolyamide-imide (PAI), i-polyphenylene sulfide (PPS), i-polyethersulfone (PES).
Isicelo: Izinto ezingundoqo zokwaleka ezinganamatheli kunye nezibophelelo eziqhelekileyo ze-fiberglass efakwe kwi-media filter kunye nemathiriyeli ye-membrane. Baphucula ukunamathela kunye nokudibanisa kwi-composite yokugqibela.
I-PTFE ine-viscosity ephezulu kakhulu yokunyibilika. Izixhobo zokwenza ifilimu ziququzelele ukudityaniswa kwamasuntswana ngexesha le-sintering.
Ezi fluoropolymers ezinokunyibilika zenza izigaba zokudibanisa ezinyibilikisiweyo phakathi kwamasuntswana e-PTFE ngexesha le-sintering, ukunyusa ukuqina kokwambathisa kunye nokunamathela kobuso. Ziluncedo kakhulu kwiingubo ezishinyeneyo okanye xa amaqondo obushushu asezantsi afunwayo.
Izigcwalisi eziSebenzayo – iiPropati zesiNtu kwiMfuno
Iifayili zichithwa ngokuthe ngqo kwi-emulsion ukuze zinike iipropati ezithile.
Uhlobo lwesigcwalisi |
Imizekelo |
Injongo |
Izigcwalisi ezikwaziyo ukunxiba |
Nano/micron alumina, silicon carbide, silica |
Ukuphucula ukuxhathisa kwe-abrasion |
Iifilisi eziqhubayo/ezichasayo |
Ikhabhoni emnyama, igraphite, carbon nanotubes (enezisasazo) |
Lahla intlawulo engatshintshiyo |
Imibala yemibala |
I-iron oxide emnyama, i-titanium dioxide |
Ikhowudi yombala, ukuxhathisa kwe-UV |
Kubalulekile: Izihluzi zifuna ii-dispersants zokumanzisa ezifanelekileyo (umzekelo, iipolycarboxylates) ukuthintela ukudityaniswa kunye nokuqinisekisa ukusasazwa okufanayo.
I-Defoamers - Ukuthintela iiPinholes
Ugwebu oluqatha lwenzeka ngexesha lokukhulelwa, okubangela iziphene zepinhole kwiingubo.
Uhlobo |
Iimbonakalo |
I-silicone-free defoamers (ekhethwayo) |
I-polyether-based, i-mineral oil-based based. Ukuphelisa umngcipheko weentsalela ze-silicone eziphazamisa ukunamathela kwesibini okanye unyango olungaphezulu. |
I-silicone defoamers |
Umthamo onamandla wokukhupha amagwebu, kodwa ukusetyenziswa kukhawulelwe kwizicelo apho umkhondo we-silicone intsalela yamkelekile. |
Isincomo: Kwiiteyiphu ze-PTFE eziza kusetyenziswa kwi-high-performance bonding okanye izicelo zokugquma, i-silicone-free defoamers ikhethwa kakhulu.
Landela i-solvents ephezulu yokubilisa okanye i-polyols (i-propylene glycol, i-ethylene glycol) ngezinye izihlandlo zongezwa ukukhuphuka kwamanzi okucothayo kwaye kuthintele ukuqhekeka ekomeni ngokukhawuleza.
Kubalulekile: Ezi azifane zisetyenziswe kwiinkqubo ze-sintering, njengoko zonke izinto eziphilayo kufuneka zibole ngokupheleleyo ngexesha lokutshisa. Ukusetyenziswa ngokugqithisileyo kunokushiya iintsalela zekhabhoni.
Isishwankathelo - Ukukhetha iPackage eyiNcedisa eLungileyo
Injongo |
Uncedo olucetyiswayo |
Phucula ukumanzisa kunye nokungena |
Nonionic okanye fluorocarbon arhente yokumanzisa |
Ukulawula ubunzima bokugquma |
Thickener (iselulosi okanye HEUR) |
Uzinzisa i-emulsion, uthintele i-coagulation |
umlawuli we-pH (amanzi ammonia) + i-anionic stabilizer |
Yomeleza i-PTFE-substrate bond |
Silane coupling agent okanye PAI/PPS resin dispersion |
Phucula ukwenziwa kwefilimu, iqondo eliphantsi le-sintering |
Ukusasazwa kwe-PFA okanye i-FEP |
Yongeza ukumelana nokunxiba |
I-alumina okanye i-silicon carbide filler |
Yongeza i-conductivity |
Ikhabhoni emnyama, igraphite, okanye iCNT |
Thintela imingxunya kwi-foam |
I-Silicone-free defoamer |
Ukomisa kancinane kwiingubo ezishinyeneyo |
I-Humectant (propylene glycol) - sebenzisa ngokukhawuleza |
I-Aokai PTFE inokuqulunqa imixube yofakelo lwesiko lwezicelo ezithile. Qhagamshelana nathi nge-substrate yakho, imfuneko yokutyeba, kunye neethagethi zokusebenza.
Lo mxholo ungentla unikwe ngu I-Jiangsu Aokai yeZixhobo eziNtsha zeTekhnoloji Co., Ltd.
Ukuba unqwenela ukufunda ngakumbi malunga neenkcukacha ezicacileyo, iimeko zesicelo kunye nezisombululo ezilungiselelwe uluhlu lwethu olupheleleyo lwemveliso, kubandakanywa amalaphu e-PTFE anobushushu obuphezulu, iiteyiphu ze-PTFE ezinobushushu obuphezulu, amabhanti e-mesh ye-PTFE, amabhanti omatshini wokubopha angenamthungo, ilaphu le-PTFE elinamacala elinye, amalaphu anobushushu obuphezulu obunganyangekiyo, kunye ne-fiberglass enganyangekiyo.
Sihlala sixhasa ifilosofi yobungcali kunye nokuthembeka, kwaye sizimisele ukukunika isisombululo esisodwa kunye neenkonzo ezicingayo.
