Idizayini Yefomula ye-MCA kanye ne-Aluminium Hypophosphite (AHP) ku-Separator Coating ye-Flame Retardancy

Idizayini Yefomula ye-MCA kanye ne-Aluminium Hypophosphite (AHP) ku-Separator Coating ye-Flame Retardancy

Ngokusekelwe kuzidingo eziqondile zomsebenzisi zezingubo zesihlukanisi ezinganqamuki ilangabi, izici zeI-Melamine Cyanrate (MCA)futhiI-Aluminium Hypophosphite (AHP)zihlaziywa kanje:

1. Ukuhambisana ne-Slurry Systems

• I-MCA:
• Amasistimu we-aqueous:Idinga ukuguqulwa kwendawo (isb., ama-silane coupling agents noma ama-surfactants) ukuthuthukisa ukuhlakazeka; kungenjalo, i-agglomeration ingenzeka.
• Amasistimu e-NMP:Ingase ibonise ukuvuvukala okuncane kuzincibilikisi ze-polar (kunconyiwe: izinga lokuhlola lokuvuvukala ngemva kokucwiliswa kwezinsuku ezingu-7).
• I-AHP:
• Amasistimu we-aqueous:I-dispersibility enhle, kodwa i-pH kufanele ilawulwe (izimo ezine-asidi zingadala i-hydrolysis).
• Amasistimu e-NMP:Ukuzinza okuphezulu kwamakhemikhali okunengozi encane yokuvuvukala.
  Isiphetho:I-AHP ibonisa ukuhambisana okungcono, kuyilapho i-MCA idinga ukuguqulwa.

2. Usayizi Wezinhlayiya kanye Nokuguquguquka Kwenqubo Yokunamathela

• I-MCA:
• I-D50 yoqobo: ~1–2 μm; kudinga ukugaya (isb., ukugaya isihlabathi) ukunciphisa usayizi wezinhlayiyana, kodwa kungase kulimaze ukwakheka kwayo okunezingqimba, kuthinte ukusebenza kahle kwe-flame-retardant.
• Ukufana kwangemva kokugaya kumele kuqinisekiswe (ukubuka kwe-SEM).
• I-AHP:
• I-D50 yasekuqaleni: Ngokuvamile ≤5 μm; ukugaya ku-D50 0.5 μm/D90 1 μm kuyafezeka (ukugaya ngokweqile kungase kubangele ama-slurry viscosity spikes).
  Isiphetho:I-MCA inokuguquguquka kosayizi wezinhlayiyana okungcono ngengozi ephansi yenqubo.

3. I-Adhesion and Abrasion Resistance

• I-MCA:
• I-polarity ephansi iholela ekunamatheleni okubi namafilimu e-PE/PP ahlukanisayo; idinga u-5–10% wokuhlanganisa okusekelwe ku-acrylic (isb, i-PVDF-HFP).
• I-coefficient ephezulu yokungqubuzana ingase idinge ukungeza u-0.5–1% we-nano-SiO₂ ukuze kuthuthukiswe ukumelana nokugqokwa.
• I-AHP:
• Amaqembu e-hydroxyl angaphezulu akha amabhondi e-hydrogen nesihlukanisi, athuthukisa ukunamathela, kodwa ama-3-5% polyurethane binders asadingeka.
• Ukuqina okuphezulu (Mohs ~3) kungase kubangele ukuchitheka kwezinhlayiyana ezincane ngaphansi kokungqubuzana okude (kudinga ukuhlolwa komjikelezo).
  Isiphetho:I-AHP inikeza ukusebenza okungcono kakhulu sekukonke kodwa idinga ukwenziwa ngcono kwe-binder.

4. Ukuzinza Kokushisa kanye Nezakhiwo Zokubola

• I-MCA:
• Ukushisa kokubola: 260-310 ° C; ayikwazi ukukhiqiza igesi ku-120–150°C, okungenzeka yehluleke ukucindezela ukubaleka okushisayo.
• I-AHP:
• Izinga lokushisa lokubola: 280-310 ° C, futhi alanele ukukhiqiza igesi yezinga lokushisa eliphansi.
  Inkinga Eyinhloko:Zombili zibola ngaphezu kwebanga eliqondiwe (120–150°C).Izixazululo:
• Yethula ama-synergists angamazinga okushisa aphansi (isb, i-phosphorus ebomvu ene-microencapsulated, ububanzi bokubola: 150–200°C) noma i-ammonium polyphosphate elungisiwe (i-APP, ehlanganiswe ukuze ilungise ukubola ibe ngu-140–180°C).
• Dizayina iInhlanganisela ye-MCA/APP (6:4 isilinganiso)ukuze kuthuthukiswe igesi ye-APP yezinga lokushisa eliphansi + ukuvinjelwa kwelangabi kwesigaba segesi se-MCA.

5. Electrochemical and Corrosion Resistance

• I-MCA:
• I-Electrochemically inert, kodwa i-melamine yamahhala esele (ubumsulwa ≥99.5% edingekayo) ingase ibangele ukubola kwe-electrolyte.
• I-AHP:
• Ukungcola okune-asidi (isb., H₃PO₂) kufanele kuncishiswe (ukuhlolwa kwe-ICP: ama-ion ensimbi ≤10 ppm) ukuze kugwenywe ukusheshisa i-LiPF₆ hydrolysis.
  Isiphetho:Kokubili kudinga ukuhlanzeka okuphezulu (≥99%), kodwa i-MCA kulula ukuyihlanza.

Isiphakamiso Sesixazululo Esiphelele

1. Ukukhetha Okuyisisekelo Kwe-Flame Retardant:

• Okuncanyelwayo:I-AHP (i-balanced dispersibility/adhesion) + i-synergist yezinga lokushisa eliphansi (isb, 5% microencapsulated red phosphorus).
• Okunye:I-MCA eguquliwe (i-carboxyl-grafted for aqueous dispersion) + APP synergist.

1. Ukuthuthukisa Inqubo:

• Ifomula ye-slurry:I-AHP (90%) + i-polyurethane binder (7%) + i-ejenti yokumanzisa (BYK-346, 0.5%) + i-defoamer (2%).
• Imingcele yokugaya:Isigayo sesihlabathi esinobuhlalu obungu-0.3 mm ZrO₂, 2000 rpm, 2 h (thagethi i-D90 ≤1 μm).

1. Ukuhlolwa kokuqinisekisa:

• Ukubola kokushisa:I-TGA (ukuncipha kwesisindo esingu-<1% ku-120°C/2h; ukuphuma kwegesi ku-150°C/30min nge-GC-MS).
• Ukuzinza kwe-Electrochemical:Ukubuka kwe-SEM ngemva kokucwiliswa kwezinsuku ezingu-30 ku-1M LiPF₆ EC/DMC ku-60°C.

Isincomo Sokugcina

Ayikho i-MCA noma i-AHP iyodwa ehlangabezana nazo zonke izidingo. Auhlelo lwe-hybriduyelulekwa:

• I-AHP (matrix)+i-microencapsulated red phosphorus (ijeneretha yegesi enezinga eliphansi lokushisa)+nano-SiO₂(ukumelana nemihuzuko).
• Bhanqa ne-high-adhesion aqueous resin (isb, i-acrylic-epoxy composite emulsion) futhi uthuthukise ukuguqulwa kwendawo ukuze uthole usayizi wezinhlayiyana/ukuqina kokuhlakazeka.
  Ukuhlola okwengeziwekuyadingeka ukuze kuqinisekiswe i-thermal-electrochemical synergy.