Mapangidwe a Formula a MCA ndi Aluminium Hypophosphite (AHP) mu Separator Coating for Flame Retardancy

Mapangidwe a Formula a MCA ndi Aluminium Hypophosphite (AHP) mu Separator Coating for Flame Retardancy

Kutengera zomwe wogwiritsa ntchito amafunikira pa zokutira zosiyanitsa zoletsa moto, mawonekedwe aMelamine Cyanurate (MCA)ndiAluminium Hypophosphite (AHP)amawunikidwa motere:

1. Kugwirizana ndi Slurry Systems

• MCA:
• Makina amadzi:Pamafunika kusinthidwa pamwamba (mwachitsanzo, silane coupling agents kapena surfactants) kupititsa patsogolo dispersibility; Apo ayi, agglomeration akhoza kuchitika.
• NMP machitidwe:Atha kuwonetsa kutupa pang'ono mu zosungunulira za polar (omwe amalangizidwa: kuyesa kuchuluka kwa kutupa pambuyo pa kumizidwa kwa masiku 7).
• AHP:
• Makina amadzi:Dispersibility yabwino, koma pH iyenera kuyendetsedwa (ma acidic angayambitse hydrolysis).
• NMP machitidwe:Kukhazikika kwamphamvu kwamankhwala komwe kumakhala ndi chiopsezo chochepa chotupa.
  Pomaliza:AHP ikuwonetsa kuyanjana kwabwinoko, pomwe MCA imafuna kusinthidwa.

2. Kukula kwa Particle ndi Coating Process Adaptability

• MCA:
• D50 Yoyambirira: ~ 1–2 μm; amafuna akupera (mwachitsanzo, mchenga mphero) kuchepetsa tinthu kukula, koma akhoza kuwononga wosanjikiza dongosolo, zimakhudza lawi-retardant dzuwa.
• Kufanana pambuyo pogaya kuyenera kutsimikiziridwa (kuwona kwa SEM).
• AHP:
• D50 Yoyambirira: Kawirikawiri ≤5 μm; kupera mpaka D50 0.5 μm/D90 1 μm ndizotheka (kugaya kwambiri kungayambitse slurry viscosity spikes).
  Pomaliza:MCA ili ndi kusinthasintha kwa kukula kwa tinthu komwe kumakhala ndi chiopsezo chotsika.

3. Kukaniza ndi Abrasion Resistance

• MCA:
• Kutsika kwa polarity kumabweretsa kusamata bwino ndi mafilimu olekanitsa a PE / PP; imafunikira 5-10% zomangira zokhala ndi acrylic (mwachitsanzo, PVDF-HFP).
• Kulimbana kwakukulu kungafunike kuwonjezera 0.5-1% nano-SiO₂ kuti muchepetse kukana kuvala.
• AHP:
• Magulu apamtunda a hydroxyl amapanga zomangira za haidrojeni ndi cholekanitsa, kuwongolera kumamatira, koma zomangira 3-5% za polyurethane zimafunikirabe.
• Kuuma kwakukulu (Mohs ~ 3) kungayambitse kukhetsa kwa microparticle pansi pa kukangana kwanthawi yayitali (kumafuna kuyesa kwa cyclic).
  Pomaliza:AHP imapereka magwiridwe antchito abwinoko koma imafuna kukhathamiritsa kwa binder.

4. Kukhazikika kwa Matenthedwe ndi Kuwonongeka Kwazinthu

• MCA:
• Kutentha kwapakati: 260-310 ° C; sangathe kupanga gasi pa 120-150 ° C, zomwe zingalepheretse kuthawa kwa kutentha.
• AHP:
• Kutentha kwapang'onopang'ono: 280-310 ° C, komanso kosakwanira kutulutsa mpweya wochepa kwambiri.
  Nkhani Yofunika:Zonsezi zimawola pamwamba pa zomwe mukufuna (120-150 ° C).Zothetsera:
• Yambitsani ma synergists otsika kutentha (mwachitsanzo, phosphorous yofiira ya microencapsulated, mitundu yowola: 150-200 ° C) kapena ammonium polyphosphate yosinthidwa (APP, yokutidwa kuti isinthe kuwonongeka kwa 140-180 ° C).
• Kupanga ndiGulu la MCA/APP (chiŵerengero cha 6:4)kuti muthandizire kutulutsa mpweya wocheperako wa APP + kuletsa kwamoto wamoto wa MCA.

5. Electrochemical and Corrosion Resistance

• MCA:
• Electrochemically inert, koma melamine yaulere yotsalira (kuyera ≥99.5% yofunikira) ikhoza kuyambitsa kuwonongeka kwa electrolyte.
• AHP:
• Zonyansa za acidic (mwachitsanzo, H₃PO₂) ziyenera kuchepetsedwa (kuyezetsa kwa ICP: ayoni achitsulo ≤10 ppm) kupewa kufulumizitsa LiPF₆ hydrolysis.
  Pomaliza:Zonsezi zimafuna kuyera kwambiri (≥99%), koma MCA ndiyosavuta kuyeretsa.

Comprehensive Solution Proposal

1. Kusankha Koyamba Koletsa Moto:

• Zokonda:AHP (moyenera dispersibility / adhesion) + otsika kutentha synergist (mwachitsanzo, 5% microencapsulated wofiira phosphorous).
• Njira ina:MCA yosinthidwa (carboxyl-yolumikizidwa kwa kubalalitsidwa kwamadzi) + APP synergist.

1. Kukhathamiritsa kwa Njira:

• Fomula ya Slurry:AHP (90%) + polyurethane binder (7%) + wetting agent (BYK-346, 0.5%) + defoamer (2%).
• Ma parameters akupera:Mphero yamchenga yokhala ndi mikanda ya 0.3 mm ZrO₂, 2000 rpm, 2 h (chandamale D90 ≤1 μm).

1. Mayeso Otsimikizira:

• Kuwola kwa kutentha:TGA (kuchepa thupi <1% pa 120 ° C / 2h; kutulutsa mpweya pa 150 ° C / 30min kudzera GC-MS).
• Kukhazikika kwa Electrochemical:Kuwona kwa SEM pambuyo pa kumizidwa kwa masiku 30 mu 1M LiPF₆ EC/DMC pa 60°C.

Malangizo Omaliza

Palibe MCA kapena AHP yokhayo yomwe imakwaniritsa zofunikira zonse. Ahybrid systemakulangizidwa:

• AHP (matrix)+phosphorous yofiira ya microencapsulated (jenereta ya gasi yotsika kutentha)+nano-SiO₂(abrasion resistance).
• Aphatikize ndi mkulu-zomatira amadzimadzi utomoni (mwachitsanzo, akiliriki-epoxy gulu emulsion) ndi konza pamwamba kusinthidwa kwa tinthu kukula / kupezeka bata.
  Kuyesa kwinandikofunikira kutsimikizira matenthedwe amagetsi-electrochemical synergy.