PTFE ka tlhaho ha e khomarele fiber ea khalase. Ntle le kalafo e nepahetseng ea holim'a metsi, ho roala PTFE ho Lesela la PTFE la mocheso o phahameng le ne le tla phunya joalo ka sock e hlephileng. Lekunutu le ka har'a li-agent tsa ho qetela - litlhare tsa lik'hemik'hale tse sebelisoang lesela la fiberglass pele le roala.
Lisebelisoa tsena - haholo-holo li-organosilane coupling agents - li sebetsa e le marokho a molek'hule, a kopanyang ka lik'hemik'hale fiber ea khalase ho PTFE ea tlhaho. Khetho ea moemeli, mahloriso a eona, le mokhoa oa ho folisa ke tsona tse khethollang matla a peel, ho hanyetsa mocheso, bophelo bo bonolo, le ts'ebetso ea dielectric.
Aokai PTFE e ntlafalitse k'hemistri e phethelang holimo ho theosa le mashome a lilemo a tlhahiso. Tataiso ena e hlalosa likarolo tse ka sehloohong tsa moemeli, phello ea tsona ho thepa ea bohlokoa, le hore na ke hobane'ng ha phekolo e nepahetseng e sa buisanoe bakeng sa lesela la boleng bo phahameng la PTFE.
Mekhahlelo e ka Sehloohong ea Baemeli ba ho Felisa Bokaholimo
Pele ho PTFE barbotage, fiberglass lesela ka kakaretso undergoes ho tloswa boka le ho kenya tshebetsong holim'a metsi. Lik'hemik'hale tsa kalafo li arotsoe ka sebopeho sa lik'hemik'hale ka tsela e latelang:
Sehlopha
Lihlahisoa tse Tloaelehileng
Likarolo le Lisebelisoa
Organosilane Coupling Agent (E Sebelisoang Haholo)
Li-condens ka Si-OH ka lihlopha tsa hydroxyl holim'a fiber ea khalase; lihlopha tse sebetsang ka tlhaho li theha maqhama a lik'hemik'hale kapa ho ferekanngoa ha 'mele → marokho a limolek'hule, a matlafatsang khoele
Titanate Coupling Agent
Monoalkoxy & chelate titanates
Ho hanyetsa mocheso o babatsehang o lumellanang le mekhoa ea fluoropolymer; e ntlafatsa PTFE wetting holim'a fiberglass, e hatella ho senyeha ha sefahleho tlas'a mocheso o phahameng
Fluorinated Coupling Agent
Perfluoroalkyl triethoxysilane
Matla a holimo a tlase haholo, ho lumellana ho holimo ho PTFE; perfluorocarbon chain entanglement e ntlafatsa ho khomarela, hydrophobicity, antifouling ts'ebetso.
Chromium Complex Finishing Agent
Volan (methacryloyl chromium chloride)
Classic kalafo ea sekhomaretsi pele; e felisitsoe ka lebaka la mathata a tikoloho le a phepelo ea lintho tse sebelisoang hape le ha ho na le litlamorao tse ntle
Inorganic Nano Sol
silika sol, alumina sol
E theha nano-scale rough topography holim'a fiber holim'a fiber bakeng sa libaka tsa ts'ebetso tsa mochini; hangata e kopantsoe le li-coupling agents
Polymeric Primer
Phahamiso ea boima bo tlase ba limolek'hule PTFE / FEP / PFA, primer ea resin e kopantsoeng le ntho e kopanyang
E theha lesela le tšesaane haholo la transitional fluoropolymer holim'a fiberglass ho thusa ho tlamahanngoa ha topcoat; haholo e fokotsa kotsi ea delamination
Aokai PTFE e sebelisa motsoako o mong oa epoxy silane le lisebelisoa tse kopanyang fluorinated bakeng sa lesela la rona la boemo bo phahameng ba mocheso oa PTFE. Tlhahiso ena e mamella ts'ebeletso e tsoelang pele ea 260 ° C ntle le ho senyeha ha sefahleho - e tiisitsoe ke liteko tsa ho tsofala ha mocheso oa lihora tse 3,000.
Tšusumetso ho Lintho tsa Bohlokoa tsa PTFE Lesela la Mocheso o Phahameng oa Mocheso
E sebetsa e le setsi sa sefahleho lipakeng tsa fiber ea inorganic glass le organic fluoroplastic, boemo ba moemeli oa kalafo le ts'ebetso e laola ts'ebetso ea sehlahisoa se felileng.
1. Matla a Adhesion & Peel Durability
Boleng ba Kalafo
Matla a Peel
Mokhoa oa ho hloleha
Ha e alafshoe/ E sa sebetsoe hantle
<2 N/cm
Li-bubble tsa ho roala, delamination ka mor'a ho phutha / ho mena kapa ho pepesehela mocheso o phahameng; bophelo bo bokhutšoanyane ba tšebeletso
Optimized coupling agent
4–8+ N/cm
Ho tlamahanngoa ha lik'hemik'hale + ho kenngoa ha 'mele; ho roala ho hanana le ho ebola tlasa ho kobeha kgafetsa le ho tshoha ha mocheso
Tšusumetso e kholo: Matla a peel ke eona ntho ea bohlokoa bakeng sa bophelo ba mokhathala o tsitsitseng le ho hanyetsa delamination.
2. Ho hanyetsa mocheso le botsitso ba mocheso
Li-coupling agents tse mamellang mocheso o phahameng (tse nang le libopeho tsa benzene kapa heterocyclic, mohlala, epoxy & acyloxy silanes tse itseng) li mamella 260°C tse sa khaotseng le litlhōrō tsa hang-hang >300°C – tse tsamaellanang le maemo a litšebeletso tsa PTFE.
Li-additives tse tloaelehileng li senyeha ka mocheso mochesong o phahameng → li-void tsa sefahleho, 'mala o mosehla, ho phatloha ho hoholo.
Tlhaloso ea kopo: Bakeng sa lisebelisoa tsa mocheso o phahameng, etsa bonnete ba hore moemeli oa ho qetela o tsitsitse ka mocheso, eseng feela seaparo sa PTFE.
3. Coating Compactness & Dielectric Performance
Phetoho e tšoanang ea silane e ntlafatsa ho ata ha emulsion ea PTFE le ho koloba holim'a fiber → ho roala ka mokhoa o tsoelang pele o nang le li-pinholes le li-microcracks tse fokolang → tse bohlokoa bakeng sa ho senyeha ha motlakase le bokhoni ba ho pata.
Lik'hemik'hale tsa kalafo tse silafalitsoeng ke hygroscopic kapa ion li phahamisa tahlehelo ea dielectric. Silane ea boleng bo phahameng e amoheloa bakeng sa lesela la PTFE la premium-grade ho fokotsa tšitiso ea litšila.
4. Khanyetso ea lik'hemik'hale le Mongobo oa Mongobo
Mofuta oa Moemeli
Phello
Fluorinated coupling agent
Lintho tsa tlhaho tsa hydrophobic & oleophobic → thibela ho kenella ha capillary ea mongobo le lik'hemik'hale tse senyang → e ntlafatsa haholo botsofali bo mongobo, ho hanyetsa acid le alkali
Inorganic nano sol
Thibelo e teteaneng e sireletsa fiber ea khalase hore e se ke ea koaheloa ke hydrofluoric acid le media e senyang
5. Ho feto-fetoha le maemo le masela
Ntlha
Phello
Melaetsa e ekelitsoeng kapa e thata-thata ea sehlopha se matlafalitsoeng
Thibela lesela, u sitise ts'ebetso e latelang ea ho roka le ho phuthela
Sebopeho se nang le li-silane tse telele tse tenyetsehang
E boloka pliability ntle le ho tela ts'ebetso ea bonding
Tlhokomeliso e sebetsang: Palo ea sesebelisoa sa ho qetela se sebelisitsoeng se tlameha ho leka-lekana ka hloko - e fokolang haholo e baka ho khomarela ho fokolang, e ngata haholo e fokotsa ho fetoha ha maemo.
Kakaretso - Hobaneng ha li-Agents tsa ho Finishing li le Bohlokoa
Thepa
Tšusumetso ea Kalafo e Atlehileng
Liphello tsa Phekolo e Mafutsana/Ha ho na Phekolo
Matla a peel
4-8+ N/cm
<2 N/cm → delamination, bubble
Ho hanyetsa mocheso
E tsitsitse ho 260°C+
Bophahamo ba sefahleho, bo mosehla, bo phallang ka holimo ho 200 ° C
Ts'ebetso ea dielectric
Ho roala ho sa khaotseng, likoti tse fokolang
Tahlehelo e phahameng ea dielectric, kotsi ea ho senyeha
Ho hanyetsa lik'hemik'hale
E thibela mongobo / lik'hemik'hale tsa capillary wicking
Tlhaselo ea fiber ea khalase, ho hloleha pele ho nako
Ho tenyetseha
E boloka pliability ha e ntlafalitsoe
Lesela le thata, le thata ho phuthela
Ntho ea bohlokoa ka ho fetisisa: Setsi sa ho qetela ke theknoloji ea mantlha bakeng sa tlhahiso ea masela a mocheso o phahameng oa PTFE. E laoloa ke li-organosilane coupling agents, lik'hemik'hale tsena li theha khokahanyo ea limolek'hule ka har'a sebopeho sa inorganic-organic ho rarolla bothata bo bobe ba PTFE ba ho khomarela fiberglass. Ha e le hantle ba khetha matla a peel, nako e telele ea bophelo, ho hanyetsa mocheso, ho kenya motlakase le ho se sebetse ha lik'hemik'hale.
Ka kakaretso , setsi sa ho qeta holimo se sebelisoa lesela la fiberglass pele ho roala ha PTFE hase lintlha tse nyenyane - ke motheo oa PTFE boleng ba lesela la mocheso o phahameng oa mocheso. Organosilane coupling agents (amino, epoxy, fluorinated) e theha marokho a bohlokoa a molek'hule pakeng tsa fiber ea khalase le PTFE, e matlafatsang matla a lekhalo ho tloha ho <2 N/cm ho isa ho 4-8+ N/cm. Kalafo e nepahetseng e boetse e matlafatsa ho hanyetsa mocheso (260 ° C+), ho kopanya ho koahela, ho sebetsa ha dielectric, le lik'hemik'hale tse hanyetsanang le lik'hemik'hale.
Ha u khetha lesela la PTFE bakeng sa lits'ebetso tse boima, botsa ka k'hemistri e qetellang - e ama bophelo ba ts'ebeletso ka kotloloho le ts'epo. Qoba li-substrates tse sa phekoloeng kapa tse sa tšoaroeng hantle, tse tla senya tlas'a khatello ea mocheso le mochine.
Na u hloka lesela la boleng bo holimo la PTFE le nang le ho qeta holimo holimo? Aokai PTFE e sebelisa mekhoa e tsoetseng pele ea ho kopanya lintho bakeng sa ho khomarela le ho tšoarella nako e telele. Ikopanye le rona ka litlhoko tsa hau tsa kopo.
Bakeng sa lintlha tse qaqileng, tataiso ea kopo, le litharollo tse ikhethileng tsa potefolio e feletseng ea sehlahisoa: PTFE high temp cloth, PTFE tepi e khomarelang, PTFE letlooeng, lebanta la fuser le se nang moeli, lesela le koahetsoeng ka lehlakoreng le le leng la PTFE, lebanta le thibelang mocheso le lesela la fiberglass le mocheso o phahameng , ka kopo ikopanye le rona:
AoKai PTFE ke setsebi
PTFE Coated Fiberglass Fabric Manufacturers le barekisi ba Chaena, ba khethehileng ka ho fana ka
PTFE Adhesive Tape,
PTFE Lebanta la Conveyor,
PTFE Mesh Belt Ho reka kapa ho rekisa lihlahisoa tsa
lesela la fiberglass tse koahetsoeng ka PTFE . Bophara bo bongata, botenya, mebala e fumaneha ka mokhoa o ikhethileng.
