I-PTFE ayinamathele ngokwemvelo ku-glass fiber. Ngaphandle kokwelashwa kwendawo efanele, i-PTFE coating on Indwangu ye-PTFE enezinga eliphezulu lokushisa ingaxebuka njengesokisi elixegayo. Imfihlo ilele kuma- ejenti angaphezulu - ukwelashwa ngamakhemikhali okufakwa endwangu ye-fiberglass ngaphambi kokumbozwa.
Lawa ma-ejenti - ngokuyinhloko ama-organosilane coupling agents - asebenza njengamabhuloho amangqamuzana, ahlanganisa ngamakhemikhali i-inorganic glass fiber ku-PTFE yemvelo. Ukukhethwa kwe-ejenti, ukugxila kwayo, kanye nenqubo yokwelapha ngokuyisisekelo kunquma amandla e-peel, ukumelana nokushisa, impilo eguqukayo, nokusebenza kwe-dielectric.
I-Aokai PTFE ithuthukise ikhemistri yokuqeda phezulu phakathi namashumi eminyaka yokukhiqiza. Lo mhlahlandlela uchaza izigaba zama-ejenti amakhulu, umthelela wazo ezimpahleni ezibalulekile, nokuthi kungani ukwelashwa okufanele kungaxoxiswana ngayo ngendwangu yekhwalithi ephezulu ye-PTFE.
Izigaba Eziyinhloko zama-ejenti wokuqeda i-Surface
Ngaphambi kokumbozwa kwe-PTFE, indwangu ye-fiberglass ngokuvamile ikhishwa i-wax futhi isebenze phezulu. Amakhemikhali okwelapha ahlukaniswa ngokwakheka kwamakhemikhali kanje:
Isigaba |
Imikhiqizo Ejwayelekile |
Izici & Izicelo |
I-ejenti yokuhlanganisa ye-Organosilane (Esetshenziswa Kakhulu) |
I-Amino silane (KH-550 / A-1100); I-Epoxy silane (KH-560 / A-187) |
I-Condens nge-Si-OH ngamaqembu e-hydroxyl endaweni ye-glass fiber surface; amaqembu asebenzayo enza amabhondi amakhemikhali noma ukubanjwa ngokomzimba → amabhuloho amangqamuzana, aqinisa kakhulu ukunamathela kokunamathela |
I-Titanate Coupling Agent |
I-Monoalkoxy & chelate titanates |
Ukumelana nokushisa okuhle kakhulu okuhambisana nezinhlelo ze-fluoropolymer; ithuthukisa ukumanzisa kwe-PTFE ku-fiberglass, icindezela ukuwohloka kobuso obuphakathi ngaphansi kwezinga lokushisa eliphezulu |
I-Fluorinated Coupling Agent |
I-Perfluoroalkyl triethoxysilane |
Amandla aphezulu aphansi kakhulu, ukuhambisana okuphezulu kwe-PTFE; I-perfluorocarbon chain entanglement ithuthukisa ukunamathela, i-hydrophobicity, ukusebenza kwe-antifouling |
I-Chromium Complex Finishing Agent |
I-Volan (i-methacryloyl chromium chloride) |
Ukwelashwa okunamathelayo kokuqala kwe-Classic; iqedwe ngenxa yokukhathazeka kwezemvelo nokusetshenziswa kabusha naphezu komphumela omuhle wokubopha |
I-Inorganic Nano Sol |
I-silica sol, i-alumina sol |
Idala i-nano-scale rough topography endaweni yefayibha yamasayithi okubambelela ngomshini; ngokuvamile ihlanganiswe nama-coupling agents |
I-Polymeric Primer |
Isisindo esiphansi se-PTFE / FEP / PFA, i-resin primer ehlanganiswe ne-ejenti yokuhlanganisa |
Yakha ungqimba lwe-fluoropolymer olushintshashintshayo oluncane kakhulu ku-fiberglass ukuze kube lula ukubopha kwejazi eliphezulu okulandelayo; kunciphisa kakhulu ingozi ye-delamination |
I-Aokai PTFE isebenzisa inhlanganisela yobunikazi ye-epoxy silane kanye nama-ejenti ahlanganisayo ane-fluorinated kwindwangu yethu yezinga lokushisa eliphezulu ye-PTFE. Lokhu kwakheka kumelana nesevisi eqhubekayo engu-260°C ngaphandle kokuwohloka kobuso obuhlangene - kuqinisekiswe ukuhlolwa kokuguga kokushisa kwamahora angu-3,000.
Umthelela Ezimpahleni Eziyinhloko ze-PTFE Indwangu Yokushisa Okuphezulu
Isebenza njengokuxhumana phakathi kobuso phakathi kwe-inorganic glass fiber kanye ne-organic fluoroplastic, izinga le-ejenti yokwelapha nokucubungula kubusa ukusebenza komkhiqizo osuphelile.
1. Amandla Okunamathela Nokuqina Kwesikhumba
Ikhwalithi Yokwelashwa |
Amandla e-Peel |
Imodi yokwehluleka |
Ukungaphathwa kahle/okungaphathwa kahle |
<2 N/cm |
Amabhamuza okunameka, ukubola ngemva kokugingqika/ukugoqa noma ukuchayeka emazingeni okushisa aphezulu; impilo yesevisi emfushane |
I-ejenti yokuhlanganisa elungiselelwe |
4–8+ N/cm |
Ukuhlanganiswa kwamakhemikhali + ukubopha ngokomzimba; i-coating imelana nokuxebuka ngaphansi kokuguquguquka okuphindaphindiwe nokushaqeka okushisayo |
Umthelela obalulekile: Amandla e-peel ayisici esinqumayo sempilo yokukhathala okuguquguqukayo kanye nokumelana ne-delamination.
2. Ukumelana Nokushisa Nokuzinza Kwe-Thermal
Ama-coupling agents amelana nokushisa okuphezulu (aqukethe izakhiwo ze-benzene noma i-heterocyclic, isb, ama-epoxy & acyloxy silanes athile) amelana no-260°C okuqhubekayo neziqongo ezisheshayo >300°C – afana nezimo zesevisi ye-PTFE.
Izithasiselo zemvelo ezivamile zibola ngokushisa emazingeni okushisa aphakeme → i-void ebusweni, ukushintsha kombala ophuzi, ukugqagqana koqweqwe lwawo.
Okushiwo kuhlelo lokusebenza: Kuzinhlelo zokusebenza ezishisa kakhulu, qinisekisa ukuthi i-ejenti yokuqedela ngokwayo izinzile ngokushisa, hhayi nje ukunamathela kwe-PTFE.
Ukuguqulwa kwe-silane okufanayo kuthuthukisa ukusabalala kwe-emulsion ye-PTFE kanye nokumanzisa endaweni yefayibha → ukunamathela okuqhubekayo okunamaphinifa ambalwa nama-microcracks → okubalulekile ekuqhekekeni kwamandla kagesi kanye nekhono lokwahlukanisa.
Amakhemikhali okwelapha angcoliswe yi-Hygroscopic noma i-ion aphakamisa ukulahleka kwe-dielectric. I-High-purity silane yamukelwa indwangu ye-PTFE yezinga eliphezulu ukuze kuncishiswe ukuphazamiseka kokungcola.
4. I-Chemical Resistance & Moisture Barrier
Uhlobo lomenzeli |
Umphumela |
I-ejenti yokuhlanganisa ene-fluorinated |
Imvelo ye-hydrophobic & oleophobic properties → ivimba ukungena kwe-capillary kumswakama kanye namakhemikhali abolayo → kuthuthukisa kakhulu ukuguga okumanzi, ukumelana ne-asidi ne-alkali |
Inorganic nano sol |
Isithiyo esiminyene sivikela i-glass fibre ukuthi ingashisi nge-hydrofluoric acid kanye nemidiya egqwalayo |
5. Ukuvumelana nezimo & Indwangu
Isici |
Umphumela |
Ama-ejenti ahlanganisayo asetshenziswe ngokweqile noma aqinile eqenjini |
Qinisa indwangu, vimbela ukuthunga nokusonga okulandelayo |
Ukwakhiwa ngama-silane amaketango amade aguquguqukayo |
Igcina ukusebenziseka ngaphandle kokudela ukusebenza kwebhondi |
Inothi eliwusizo: Inani le-ejenti yokuqedela elisetshenzisiwe kufanele lilinganiswe ngokucophelela - okuncane kakhulu kubangela ukunamathela okubi, okuningi kunciphisa ukuguquguquka.
Isifinyezo - Kungani ama-Surface Finishing Agents Abalulekile
Impahla |
Umthelela Wokwelashwa Okulungiselelwe |
Umphumela Wokwelashwa Okumpofu/Akukho |
Amandla e-peel |
4-8+ N/cm |
<2 N/cm → i-delamination, ibhamuza |
Ukumelana nokushisa |
Izinzile ku-260°C+ |
I-interface voids, iphuzi, i-spalling ngaphezu kuka-200 ° C |
Ukusebenza kwe-Dielectric |
Ukumboza okuqhubekayo, amaphinifa ambalwa |
Ukulahleka kwe-dielectric okuphezulu, ingozi yokuwohloka |
Ukumelana namakhemikhali |
Ivimba umswakama/ikhemikhali yokufaka ama-capillary wicking |
Ukuhlaselwa kwe-fiber yengilazi, ukwehluleka ngaphambi kwesikhathi |
Ukuvumelana nezimo |
Igcina ukusebenziseka kalula uma ilungiselelwe |
Indwangu eqinile, kunzima ukuyisonga |
Okuthathayo okubalulekile: I-ejenti yokuqedela indawo iwubuchwepheshe obuyinhloko bokukhiqizwa kwendwangu yezinga lokushisa eliphezulu ye-PTFE. Ebuswa ama-ejenti ahlanganisayo e-organosilane, lawa makhemikhali akha ukuxhumana kwamangqamuzana kusixhumi esibonakalayo se-inorganic-organic ukuze axazulule ukunganamatheli kahle kwemvelo kwe-PTFE ku-fiberglass. Ngokuyisisekelo banquma amandla e-peel, ubude bempilo eguquguqukayo, ukumelana nokushisa, ukufakwa kukagesi, nokungangeni kwamakhemikhali.
Kafushane , i-ejenti yokuqedela okungaphezulu esetshenziswa endwangu ye-fiberglass ngaphambi kokunamathiswa kwe-PTFE akuyona imininingwane emincane – iyisisekelo sekhwalithi yendwangu yezinga lokushisa eliphezulu ye-PTFE. I-Organosilane coupling agents (i-amino, i-epoxy, i-fluorinated) idala amabhuloho amangqamuzana abalulekile phakathi kwefayibha yengilazi ne-PTFE, ekhulisa amandla epeel kusuka ku-<2 N/cm kuya ku-4-8+ N/cm. Ukwelashwa ngendlela efanele futhi kuthuthukisa ukumelana nokushisa (260°C+), ukubumbana kokunamathela, ukusebenza kwe-dielectric, nokumelana namakhemikhali.
Uma ukhetha indwangu ye-PTFE yezinhlelo zokusebenza ezifunayo, buza mayelana nekhemistri eqeda phezulu - ithinta ngqo impilo yesevisi nokuthembeka. Gwema ama-substrates angalashwanga noma angaphathwa kahle, azoqeda ngaphansi kwengcindezi eshisayo neyomshini.
Udinga izinga eliphezulu le-PTFE indwangu yokushisa ephezulu enokuqedwa okuphezulu okuphezulu? I-Aokai PTFE isebenzisa ukwakheka komenzeli wokuhlanganisa okuthuthukile ukunamathela okuphakeme nokuqina. Xhumana nathi ngezidingo zakho zesicelo.
Okuqukethwe Kuhlinzekwe ngu I-Jiangsu Aokai New Materials Technology Co., Ltd.
Ukuze uthole imininingwane enemininingwane, isiqondiso sohlelo lokusebenza, nezixazululo ezenziwe ngokwezifiso zephothifoliyo yomkhiqizo ogcwele: Indwangu ye-PTFE ephezulu, i-PTFE adhesive tape, PTFE mesh belt, ibhande le-fuser elingenamthungo, indwangu eboshwe ohlangothini olulodwa lwe-PTFE, ibhande lokudlulisa elingashisi ukushisa nendwangu ye-fiberglass enezinga eliphezulu lokushisa , sicela usithinte:
Ukusekela ubungcweti nobuqotho, sinikeza izixazululo zobuchwepheshe ezihlangene zonke kanye nenkonzo yamakhasimende ecabangelayo.
