Kapangidwe ka Fomula ya MCA ndi Aluminium Hypophosphite (AHP) mu Separator Coating kuti ichepetse moto

Kapangidwe ka Fomula ya MCA ndi Aluminium Hypophosphite (AHP) mu Separator Coating kuti ichepetse moto

Kutengera ndi zofunikira za wogwiritsa ntchito pazophimba zolekanitsa moto, makhalidwe aMelamine Cyanurate (MCA)ndiAluminium Hypophosphite (AHP)akusanthulidwa motere:

1. Kugwirizana ndi Slurry Systems

• MCA:
• Machitidwe amadzi:Imafuna kusintha kwa pamwamba (monga, zinthu zolumikizira za silane kapena zinthu zopanga ma surfactants) kuti ziwongolere kufalikira; apo ayi, kusonkhana kungachitike.
• Machitidwe a NMP:Zingasonyeze kutupa pang'ono mu zinthu zosungunulira za polar (koyenera: yesani kuchuluka kwa kutupa mukamamiza thupi kwa masiku 7).
• AHP:
• Machitidwe amadzi:Kufalikira bwino, koma pH iyenera kulamulidwa (mikhalidwe ya asidi ingayambitse hydrolysis).
• Machitidwe a NMP:Kukhazikika kwa mankhwala ambiri komanso chiopsezo chochepa cha kutupa.
  Mapeto:AHP imasonyeza kugwirizana bwino, pomwe MCA imafuna kusintha.

2. Kukula kwa Tinthu ndi Kutha Kusintha kwa Njira Yophikira

• MCA:
• D50 yoyambirira: ~1–2 μm; imafuna kupukutidwa (monga, kupukutidwa kwa mchenga) kuti ichepetse kukula kwa tinthu tating'onoting'ono, koma ikhoza kuwononga kapangidwe kake ka zigawo, zomwe zingakhudze magwiridwe antchito oletsa moto.
• Kufanana kwa ntchito pambuyo pogaya kuyenera kutsimikiziridwa (SEM observation).
• AHP:
• D50 yoyambirira: Kawirikawiri ≤5 μm; kupukusa mpaka D50 0.5 μm/D90 1 μm n'kotheka (kupukusa kwambiri kungayambitse kukhuthala kwa slurry).
  Mapeto:MCA ili ndi kukula kwa tinthu tomwe timasinthasintha bwino komanso chiopsezo chochepa cha njira yogwirira ntchito.

3. Kukana Kumatira ndi Kukana Kumva Kuwawa

• MCA:
• Kutsika kwa polarity kumabweretsa kusagwira bwino ntchito ndi mafilimu olekanitsa a PE/PP; kumafuna zomangira zochokera ku acrylic 5–10% (monga PVDF-HFP).
• Kuchuluka kwa friction coefficient kungafunike kuwonjezera 0.5–1% nano-SiO₂ kuti ziwongolere kukana kutopa.
• AHP:
• Magulu a hydroxyl pamwamba amapanga ma hydrogen bond ndi separator, zomwe zimapangitsa kuti azigwirizana bwino, koma ma polyurethane binder a 3–5% amafunikirabe.
• Kuuma kwambiri (Mohs ~3) kungayambitse kutayika kwa tinthu tating'onoting'ono chifukwa cha kukangana kwa nthawi yayitali (kumafuna mayeso ozungulira).
  Mapeto:AHP imapereka magwiridwe antchito abwino koma imafuna kukonza bwino ma binder.

4. Kukhazikika kwa Kutentha ndi Kuwonongeka kwa Katundu

• MCA:
• Kutentha kwa kuwonongeka: 260–310°C; sikungathe kupanga mpweya pa 120–150°C, zomwe zingalepheretse kutentha komwe kumatuluka.
• AHP:
• Kutentha kwa kuwonongeka: 280–310°C, komwe sikukwanira kupanga mpweya wotentha kwambiri.
  Nkhani Yofunika:Zonsezi zimawola pamwamba pa malo omwe akufuna (120–150°C).Mayankho:
• Ikani ma synergists otsika kutentha (monga microencapsulated red phosphorous, kuchuluka kwa kuwonongeka: 150–200°C) kapena modified ammonium polyphosphate (APP, yokutidwa kuti isinthe kuwonongeka kufika pa 140–180°C).
• PanganiMCA/APP composite (chiŵerengero cha 6:4)kugwiritsa ntchito njira ya APP yopangira mpweya wochepa kutentha + njira ya MCA yoletsa moto wa gasi.

5. Kukana kwa Magetsi ndi Kudzimbiri

• MCA:
• Melamine yopanda mphamvu zamagetsi, koma yotsalira yopanda mphamvu (yomwe imafunika kukhala yoyera ≥99.5%) ingayambitse kuwonongeka kwa ma electrolyte.
• AHP:
• Kuipitsidwa kwa asidi (monga H₃PO₂) kuyenera kuchepetsedwa (kuyesa kwa ICP: ma ayoni achitsulo ≤10 ppm) kuti tipewe kufulumizitsa hydrolysis ya LiPF₆.
  Mapeto:Zonsezi zimafuna kuyera kwambiri (≥99%), koma MCA ndi yosavuta kuyeretsa.

Ndondomeko Yothetsera Mavuto Onse

1. Kusankha Koyamba Koletsa Moto:

• Zokondedwa:AHP (kufalikira/kumatirira koyenera) + mgwirizano wochepa kutentha (monga 5% phosphorous yofiira yokhala ndi microcapsulated).
• Njira ina:MCA yosinthidwa (yolumikizidwa ndi carboxyl kuti ifalikire m'madzi) + APP synergist.

1. Kukonza Njira:

• Fomula ya slurry:AHP (90%) + chomangira cha polyurethane (7%) + chonyowetsa (BYK-346, 0.5%) + chotsukira madzi (2%).
• Magawo opukutira:Mphero ya mchenga yokhala ndi mikanda ya 0.3 mm ZrO₂, 2000 rpm, maola awiri (target D90 ≤1 μm).

1. Mayeso Otsimikizira:

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

Malangizo Omaliza

MCA kapena AHP zokha sizikwaniritsa zofunikira zonse.dongosolo losakanikiranaakulangizidwa kuti:

• AHP (matrix)+phosphorous wofiira wopangidwa ndi microcapsulated (jenereta ya mpweya wotentha pang'ono)+nano-SiO₂(kukana kukwiya).
• Phatikizani ndi utomoni wamadzi wokhala ndi guluu womatira kwambiri (monga acrylic-epoxy composite emulsion) ndikukonza bwino mawonekedwe a pamwamba kuti tinthu tating'onoting'ono/kufalikira kwa tinthu tikhazikike.
  Kuyesa kwinandikofunikira kuti zitsimikizire mgwirizano wa kutentha ndi zamagetsi.