Indwangu ye-fiberglass ene-PTFE iyinhlanganisela eyenziwe ngokufaka indwangu ye-fiberglass efaka i-polytetrafluoroethylene (PTFE) dispersion bese i-sintering ezingeni lokushisa eliphezulu. Isakhiwo sawo singahlukaniswa sibe izingxenye ezimbili: i-PTFE enamathela kanye nendwangu eyisisekelo ye-fiberglass.
Ezimweni ezidla amakhemikhali, izinguquko zesakhiwo zincike ohlotsheni, ukugxila, kanye nezinga lokushisa lendawo ebolayo, kanye nokuthi ngokuyinhloko ihlasela i-coating noma i-substrate. Ake sihlole lesi sendlalelo ngokwesendlalelo ngokombono wabakhiqizi bendwangu ye-fiberglass ene-PTFE:
I. Izinguquko Ku-PTFE Coating: Izinzile Kakhulu Ezimeni Eziningi
I-PTFE yaziwa 'njengenkosi yepulasitiki' ngenxa yamabhondi ayo e-carbon-fluorine aqine ngokwedlulele kanye nokungangeni kwamakhemikhali aphakeme ngendlela emangalisayo. Ezimweni ezivamile ezidla amakhemikhali (okuhlanganisa i-aqua regia ebilayo, i-sulfuric acid egxilile, i-nitric acid egxilile, izinyibilikisi eziphilayo, njll.), ukwakheka kwayo kwamangqamuzana awekho nhlobo izinguquko zamakhemikhali. Nokho, ngaphansi kwezimo ezimbi kakhulu ezilandelayo, isakhiwo sizolimala:
- Izinguquko Zesakhiwo: Izinsimbi ze-alkali zizokhipha ama-athomu e-fluorine ku-PTFE, kubangele ukusabela kwe-dehydrofluorination. Amaqembu -CF₂- ochungechungeni lwamangqamuzana ayabhujiswa, akhe amabhondi e-carbon-carbon double (-C=C-) futhi kamuva aholele ku-carbonization.
- Ukubonakaliswa Okukhulu kakhulu: Ukumboza kuyashintsha kusuka kumhlophe okubisi/okuguquguqukayo kuye kunsundu noma kumnyama, kulahlekelwe ukuguquguquka, kuba brittle, kanye nezimpushana. Lokhu ukuwohloka kwamakhemikhali okujwayelekile.
2. Ama-Fluorinating Agents Aqinile kanye Nama-Halogenated Hydrocarbon athile (ngaphansi kwezinga lokushisa eliphezulu nokucindezela)
- I-Elemental fluorine (F₂), i-chlorine trifluoride (ClF₃), nama-ejenti afanayo angaphula umgogodla we-carbon-carbon, okubangele ukubola kwawo.
- Ngaphansi kwezinga lokushisa eliphezulu nokucindezela, ezinye izinyibilikisi zohlobo lwe-Freon zingabangela ukuvuvukala okukhulu kwe-PTFE. Nakuba ukusabela kwamakhemikhali kungase kungenzeki ngempela, isakhiwo somzimba sihlushwa icrystallinity encishisiwe, ukwanda kwevolumu, nokulahlekelwa amandla ngenxa yamaketanga amangqamuzana aphoqelelwe ukuhlukana.
3. I-Oxidizing Acid Eqinile Emazingeni Okushisa Aphakeme
- Ukucwiliswa isikhathi eside ku-nitric acid evuthayo noma i-sulfuric acid egxilile egxilile ingakhipha i-oxidize kancane kancane indawo ye-PTFE, yethule amaqembu amhlophe njenge-carbonyl kanye namaqembu e-hydroxyl, nokwandisa amandla angaphezulu. Nokho, lokhu akuvamile ukubonakala ezinhlelweni ezivamile.
Iphuzu Elibalulekile: Ngobuningi bemidiya yamakhemikhali, i-PTFE enamathelayo ngokwayo ngokwesakhiwo 'ayishintshile.' Nokho, inkinga ivamise ukuba eqinisweni lokuthi ayingeneli ngokuphelele, kanye nokumila kwayo ngokomzimba.
II. Izinguquko Kundwangu Yesisekelo Se-Fiberglass: Isixhumanisi Esibuthakathaka Sayo Yonke Into Ebalulekile
Izingxenye eziyinhloko ze-fiberglass yi-silicon dioxide (SiO₂) namanye ama-oxide ensimbi. Uma le ngxenye isigqwalile, isakhiwo sonke sendwangu yokushisa okuphezulu sizowa.
1. Ukuhlasela Okuyingozi Kwe-Hydrofluoric Acid (HF)
- Izinguquko Zesakhiwo: I-HF ibhekana nokusabela okuthile nge-SiO₂: SiO₂ + 4HF → SiF₄↑ + 2H₂O. I-fiberglass skeleton ihlakazeka ngokuqondile futhi iyanyamalala.
- Ukubonakaliswa Okukhulu: Ingaphezulu lendwangu liphelelwa amandla ngokushesha, lifane nesikhumba esithambile esisele kuphela, sidabuka kalula lapho sidonsa, ngokuhlukana okukhulu phakathi kokunameka ne-substrate. Lokhu ukugqwala kwamakhemikhali okwesabeka kakhulu ezintweni ezisekelwe engilazini-fiber. Uma nje kunezimbobo zokunamathisela embotsheni noma emaphethelweni avuliwe, umonakalo uyingozi kakhulu.
2. Ukukhipha Kancane Nge-Alkali Eqinile (ikakhulukazi ama-alkali agxilile ashisayo)
- Izinguquko Zesakhiwo: Ama-ion we-OH⁻ aphula amabhondi e-siloxane (-Si-O-Si-) kunethiwekhi yengilazi, enze ama-silicates ancibilikayo. I-fiber surface iyashintsha isuke ebushelelezi iye emabhodweni, ivele imigodi ebambekayo kanye nemifantu, i-fiber diameter ibe mncane ibe yincane, igcine ngokuphuka.
- Ukubonakaliswa Okukhulu: Amandla ayancipha ngokuqhubekayo, indwangu iba brittle, futhi lapho igobile, imicu ephukile iphumela ngaphandle koqweqwe, okubangela ukuqhekeka nokuxebuka.
- Izinguquko Zesakhiwo: Ama-asidi avamile (i-hydrochloric acid, i-sulfuric acid, njll.) ngokukhethekile akhipha izingxenye ezingezona i-silica (njenge-aluminium, i-calcium oxides, njll.) ku-fiberglass, eshiya ikakhulukazi i-silica skeleton. Le nqubo yaziwa kakhulu ngokuthi 'i-leaching,' yenza ukwakheka kwe-microporous endaweni yefiber.
- Ukubonakaliswa Okukhulu: Indwangu iba nzima futhi ishwabene, ngokushintsha kokuncipha, nakuba ifomu lilonke lingagcinwa. Amandla ayancipha ngenxa yokugxilisa ingcindezi.
III. Izinguquko Ku-interface Ehlanganisiwe: Ukwehluleka Okufihliwe
Izimo zamakhemikhali ngokuvamile azihlaseli ngqo kodwa kunalokho zingena zisuka emaphethelweni noma ngokulimala okuncane.
- Ukungena kanye Ne-Delamination: Izinyibilikisi ze-Organic noma izixazululo ze-asidi zingena ngamaphinifa, imifantu emincane, noma imiphetho esike ku-PTFE enamathelayo, ihlasela i-fiberglass. Imikhiqizo esabelayo noma uketshezi olungena ngaphakathi lunqwabelana kusixhumi esibonakalayo, lwenza ingcindezi ye-osmotic, ibangele ukunamathela kwe-PTFE kuqhume futhi kuncibilike ku-fiberglass substrate ngezinga elikhulu.
- I-Stress Corrosion Cracking: Indwangu enezinga eliphezulu lokushisa ingaphansi kokushuba ngesikhathi isetshenziswa. Ukugqwala kwe-fiberglass ngemidiya yamakhemikhali (ikakhulukazi ama-alkali aqinile) kusebenza ngokuhambisana nokucindezeleka komshini, okubangela imifantu ukuthi isakazeke ngokushesha eduze kwesiqondiso se-fiber radial, okuholela ekwephukeni kwendwangu kungazelelwe ngokuphuka okuhlanzekile kwe-brittle-fracture ngesikhathi sokuphumula.
Ezindaweni ezigqwala ngamakhemikhali, izinguquko zesakhiwo sendwangu ye-fiberglass ehlanganiswe ne-PTFE zingafingqwa njengokuthi: 'Inkosi Yepulasitiki' inamathela ihlala icishe izinze njengentaba, kuyilapho indwangu yesisekelo se-fiberglass—uma yangena noma yahlaselwa—iba isithende se-Achilles, okuholela ekuhlakazweni kwamathambo, ukuhlakazeka nokuphuma kwe-interface.
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Ulwazi olungenhla luhlinzekwa ngu I-Jiangsu Aoke New Material Technology Co., Ltd.
Uma ungathanda ukufunda okwengeziwe ngamapharamitha anemininingwane, izimo zohlelo lokusebenza, nezinketho zokwenza ngokwezifiso zohlu lwethu olugcwele lwemikhiqizo—okuhlanganisa indwangu ye-fiberglass ehlanganiswe ne-PTFE, itheyiphu ye-fiberglass ehlanganiswe ne-PTFE, amabhande anezikhala e-fiberglass enziwe nge-PTFE, amabhande angenamthungo anamathelayo, amabhande aqinile anamathele ohlangothini olulodwa, izinga lokushisa eliphakeme le-PTFE, izinga lokushisa eliphakeme le-PTFE, Indwangu ye-fiberglass engazweli-sicela ukhululeke ukuxhumana nathi:
Inombolo yocingo:
UMnu. Guo: 18944819998
UMnu. Liu: 13705266308
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