Uyilo lweFomula ye-MCA kunye ne-Aluminium Hypophosphite (AHP) kwi-Separator Coating ukuze i-Flame Retardancy

Uyilo lweFomula ye-MCA kunye ne-Aluminium Hypophosphite (AHP) kwi-Separator Coating ukuze i-Flame Retardancy

Ngokusekelwe kwiimfuno ezithile zomsebenzisi zepeyinti zokwahlulahlula ezithintela umlilo, iimpawu zeI-Melamine Cyanurate (MCA)kwayeI-Aluminium Hypophosphite (AHP)zihlalutywa ngolu hlobo lulandelayo:

1. Ukuhambelana neenkqubo zeSlurry

• I-MCA:
• Iinkqubo zamanzi:Ifuna ukuguqulwa komphezulu (umz., ii-silane coupling agents okanye ii-surfactants) ukuphucula ukusasazeka; kungenjalo, i-agglomeration inokwenzeka.
• Iinkqubo ze-NMP:Ingabonakalisa ukudumba okuncinci kwi-polar solvents (kucetyiswa: vavanya izinga lokudumba emva kokuntywiliselwa kwiintsuku ezisi-7).
• I-AHP:
• Iinkqubo zamanzi:Ukusasazeka kakuhle, kodwa i-pH kufuneka ilawulwe (iimeko ze-asidi zinokubangela i-hydrolysis).
• Iinkqubo ze-NMP:Uzinzo oluphezulu lweekhemikhali kunye nomngcipheko omncinci wokudumba.
  Isiphelo:I-AHP ibonisa ukuhambelana okungcono, ngelixa i-MCA ifuna ukulungiswa.

2. Ubungakanani beenxalenye kunye neNkqubo yokuGcoba Ukuguquguquka

• I-MCA:
• I-D50 yoqobo: ~1–2 μm; ifuna ukugaywa (umz., ukugaywa kwesanti) ukunciphisa ubungakanani bamasuntswana, kodwa inokonakalisa isakhiwo sayo esinamaleko, ichaphazele ukusebenza kakuhle kokungatshisi ilangabi.
• Ukufana emva kokugaya kufuneka kuqinisekiswe (ukujongwa kwe-SEM).
• I-AHP:
• I-D50 yoqobo: Ngokwesiqhelo i-≤5 μm; ukugaywa ukuya kwi-D50 0.5 μm/D90 1 μm kunokwenzeka (ukugaywa kakhulu kunokubangela ukuqaqamba kwe-slurry viscosity).
  Isiphelo:I-MCA inokuguquguquka okungcono kobukhulu beesuntswana kunye nomngcipheko omncinci wenkqubo.

3. Ukumelana nokunamathela kunye nokurhawuzelelwa

• I-MCA:
• I-polarity ephantsi ikhokelela ekungabambeleli kakuhle kwiifilimu zokwahlulahlula ze-PE/PP; ifuna ii-binders ezisekelwe kwi-acrylic ezi-5–10% (umz., i-PVDF-HFP).
• I-coefficient ephezulu yokungqubana inokubangela ukuba kongezwe i-0.5–1% nano-SiO₂ ukuphucula ukumelana nokuguguleka.
• I-AHP:
• Amaqela e-hydroxyl angaphezulu enza iibhondi ze-hydrogen kunye ne-separator, nto leyo ephucula ukunamathela, kodwa kusafuneka ii-polyurethane binders eziyi-3–5%.
• Ubunzima obuphezulu (Mohs ~3) bunokubangela ukuchitheka kwamasuntswana amancinci phantsi kokungqubana okude (kufuna uvavanyo olujikelezayo).
  Isiphelo:I-AHP inika ukusebenza okungcono kakhulu kodwa ifuna ukulungiswa kwe-binder.

4. Uzinzo lobushushu kunye neempawu zokubola

• I-MCA:
• Iqondo lobushushu lokubola: 260–310°C; ayinakuvelisa igesi kwi-120–150°C, nto leyo enokubangela ukuba ingaphumeleli ukuthintela ukufudumeza kobushushu.
• I-AHP:
• Ubushushu bokubola: 280–310°C, alwanelanga ukuvelisa igesi kubushushu obuphantsi.
  Ingxaki ephambili:Zombini zibola ngaphezu koluhlu olujoliswe kulo (120–150°C).Izisombululo:
• Faka ii-synergists ezisebenzisa ubushushu obuphantsi (umz., i-microencapsulated red phosphorus, uluhlu lokubola: 150–200°C) okanye i-modified ammonium polyphosphate (APP, egqunywe ukuze kulungiswe ukubola kube yi-140–180°C).
• Yila iI-MCA/APP edityanisiweyo (umlinganiselo we-6:4)ukusebenzisa ukuveliswa kwegesi kwiqondo lobushushu eliphantsi le-APP + ukuthintela ilangatye le-MCA kwisigaba segesi.

5. Ukumelana ne-Electrochemical kunye ne-Corrosion

• I-MCA:
• I-melamine engasebenziyo ngokwe-electrochemical, kodwa eseleyo ikhululekile (ubumsulwa obuyi-≥99.5% buyimfuneko) inokubangela ukubola kwe-electrolyte.
• I-AHP:
• Ukungcola okune-asidi (umz., i-H₃PO₂) kufuneka kuncitshiswe (uvavanyo lwe-ICP: ii-ion zesinyithi ≤10 ppm) ukuze kuthintelwe ukukhawulezisa i-LiPF₆ hydrolysis.
  Isiphelo:Zombini zifuna ubumsulwa obuphezulu (≥99%), kodwa i-MCA kulula ukuyicoca.

Isindululo seSisombululo esiBanzi

1. Ukhetho oluPhambili oluSithintelayo iLanga:

• Okukhethiweyo:I-AHP (ukusasazeka/ukunamathela okulinganiselayo) + i-synergist yobushushu obuphantsi (umz., i-5% ye-microencapsulated red phosphorus).
• Enye indlela:I-MCA eguquliweyo (efakwe kwi-carboxyl ukuze kusasazeke amanzi) + i-APP synergist.

1. Ukuphuculwa kwenkqubo:

• Ifomula yodaka:I-AHP (90%) + i-polyurethane binder (7%) + i-wetting agent (BYK-346, 0.5%) + i-defoamer (2%).
• Iiparamitha zokusila:Isixhobo sokugalela isanti esineentsimbi ze-0.3 mm ZrO₂, 2000 rpm, iiyure ezi-2 (target D90 ≤1 μm).

1. Uvavanyo lokuqinisekisa:

• Ukubola kobushushu:I-TGA (ukunciphisa ubunzima <1% kwi-120°C/2h; ukuphuma kwegesi kwi-150°C/30min nge-GC-MS).
• Uzinzo lwe-electrochemical:Ukujongwa kwe-SEM emva kokuntywiliselwa kwi-1M LiPF₆ EC/DMC kwiintsuku ezingama-30 kwiqondo lobushushu elingama-60°C.

Ingcebiso Yokugqibela

Akukho MCA okanye i-AHP yodwa ehlangabezana nazo zonke iimfuno.inkqubo ye-hybridkuyacetyiswa ukuba:

• I-AHP (i-matrix)+i-phosphorus ebomvu efakwe kancinci (ijenereyitha yegesi enobushushu obuphantsi)+i-nano-SiO₂(ukumelana nokurhawuzelelwa).
• Hlanganisa ne-resin yamanzi enamathelayo kakhulu (umz., i-acrylic-epoxy composite emulsion) kwaye ulungise utshintsho lomphezulu ukuze ubukhulu beesuntswana/ukusasazeka kwazo kuhlale kuzinzile.
  Uvavanyo olongezelelweyoiyadingeka ukuqinisekisa ukuhambelana kwe-thermal-electrochemical.