Tsim Qauv rau MCA thiab Aluminium Hypophosphite (AHP) hauv Separator Txheej rau Flame Retardancy

Tsim Qauv rau MCA thiab Aluminium Hypophosphite (AHP) hauv Separator Txheej rau Flame Retardancy

Raws li tus neeg siv cov kev xav tau tshwj xeeb rau cov txheej txheem sib cais hluav taws kub, cov yam ntxwv ntawmMelamine Cyanurate (MCA)thiabAluminium Hypophosphite (AHP)raug tshuaj xyuas raws li nram no:

1. Kev Sib Piv nrog Slurry Systems

• MCA:
• Cov txheej txheem dej:Yuav tsum tau hloov kho qhov chaw (piv txwv li, cov neeg sawv cev silane lossis surfactants) kom txhim kho kev sib kis; txwv tsis pub, kev sib sau ua ke yuav tshwm sim.
• Cov txheej txheem NMP:Tej zaum yuav muaj qhov o me ntsis hauv cov kuab tshuaj polar (pom zoo: sim qhov o tom qab 7 hnub rau hauv dej).
• AHP:
• Cov txheej txheem dej:Kev tawg tau zoo, tab sis pH yuav tsum tau tswj (cov xwm txheej acidic yuav ua rau hydrolysis).
• Cov txheej txheem NMP:Kev ruaj khov tshuaj lom neeg siab nrog qhov kev pheej hmoo tsawg kawg nkaus.
  Xaus lus:AHP qhia tau tias muaj kev sib raug zoo dua, thaum MCA xav tau kev hloov kho.

2. Qhov Loj ntawm Cov Khoom Me Me thiab Kev Hloov Kho Tau ntawm Cov Txheej Txheem Txheej Txheem

• MCA:
• Thawj D50: ~ 1–2 μm; yuav tsum tau sib tsoo (piv txwv li, sib tsoo xuab zeb) kom txo qhov loj ntawm cov khoom me me, tab sis yuav ua rau nws cov qauv txheej puas tsuaj, cuam tshuam rau kev ua haujlwm ntawm hluav taws.
• Yuav tsum tau xyuas kom meej tias qhov sib npaug tom qab sib tsoo (SEM kev soj ntsuam).
• AHP:
• Thawj D50: Feem ntau ≤5 μm; kev sib tsoo rau D50 0.5 μm / D90 1 μm yog ua tau (kev sib tsoo ntau dhau yuav ua rau cov slurry viscosity spikes).
  Xaus lus:MCA muaj kev hloov pauv zoo dua qhov loj ntawm cov khoom me me nrog rau kev pheej hmoo tsawg dua.

3. Kev nplaum thiab kev sib txhuam tsis kam

• MCA:
• Qhov polarity qis ua rau tsis nplaum zoo nrog cov yeeb yaj kiab cais PE/PP; xav tau 5–10% acrylic-based binders (piv txwv li, PVDF-HFP).
• Cov coefficient sib txhuam siab yuav tsum tau ntxiv 0.5–1% nano-SiO₂ los txhim kho kev hnav tsis kam.
• AHP:
• Cov pab pawg hydroxyl saum npoo av tsim cov hydrogen bonds nrog lub separator, txhim kho kev nplaum, tab sis tseem xav tau 3–5% polyurethane binders.
• Qhov nyuaj dua (Mohs ~ 3) yuav ua rau cov microparticle poob qis hauv qab kev sib txhuam ntev (yuav tsum tau kuaj cyclic).
  Xaus lus:AHP muaj kev ua tau zoo dua tab sis xav tau kev txhim kho binder.

4. Kev Ruaj Ntseg Thermal thiab Cov Khoom Uas Ua Rau Kom Yaj

• MCA:
• Kub lwj: 260–310°C; tsis tuaj yeem tsim roj ntawm 120–150°C, tej zaum yuav tsis ua rau muaj kev kub ntxhov.
• AHP:
• Kub ntawm kev lwj: 280–310 ° C, tsis txaus rau kev tsim cov roj kub qis.
  Qhov Teeb Meem Tseem Ceeb:Ob qho tib si lwj mus rau qhov siab tshaj qhov xav tau (120–150 ° C).Cov Kev Daws Teeb Meem:
• Qhia cov synergists uas kub tsawg (piv txwv li, microencapsulated liab phosphorus, decomposition range: 150–200°C) lossis modified ammonium polyphosphate (APP, coated los kho decomposition rau 140–180°C).
• Tsim ib qhoMCA/APP sib xyaw ua ke (piv txwv 6:4)los siv APP txoj kev tsim roj qis-kub + MCA txoj kev txwv tsis pub muaj nplaim taws.

5. Kev Tiv Thaiv Hluav Taws Xob thiab Kev Tiv Thaiv Corrosion

• MCA:
• Electrochemically inert, tab sis tsis muaj melamine seem (purity ≥99.5% xav tau) yuav ua rau electrolyte decomposition.
• AHP:
• Cov kua qaub tsis huv (piv txwv li, H₃PO₂) yuav tsum tau txo qis (ICP xeem: cov hlau ions ≤10 ppm) kom tsis txhob ua kom LiPF₆ hydrolysis sai dua.
  Xaus lus:Ob qho tib si xav tau kev ntshiab siab (≥99%), tab sis MCA yooj yim dua rau kev ntxuav.

Kev Npaj daws teeb meem dav dav

1. Kev Xaiv Tshuaj Tiv Thaiv Hluav Taws Xob Tseem Ceeb:

• Nyiam dua:AHP (kev sib npaug ntawm kev sib kis / kev nplaum) + kev sib xyaw ua ke ntawm qhov kub qis (piv txwv li, 5% microencapsulated liab phosphorus).
• Lwm txoj kev xaiv:MCA hloov kho (carboxyl-grafted rau kev sib kis hauv dej) + APP synergist.

1. Kev Txhim Kho Cov Txheej Txheem:

• Cov mis ntawm cov slurry:AHP (90%) + polyurethane binder (7%) + wetting agent (BYK-346, 0.5%) + defoamer (2%).
• Kev sib tsoo tsis:Lub tshuab xuab zeb nrog 0.3 hli ZrO₂ hlaws dai, 2000 rpm, 2 teev (lub hom phiaj D90 ≤1 μm).

1. Kev Ntsuam Xyuas Kev Pom Zoo:

• Kev rhuav tshem thermal:TGA (poob phaus <1% ntawm 120°C/2 teev; cov pa roj tawm ntawm 150°C/30 feeb ntawm GC-MS).
• Kev ruaj khov ntawm hluav taws xob:Kev soj ntsuam SEM tom qab 30 hnub nyob rau hauv 1M LiPF₆ EC/DMC ntawm 60°C.

Cov Lus Qhia Kawg

Tsis yog MCA lossis AHP ib leeg xwb ua tau raws li txhua yam uas yuav tsum tau ua.lub cev sib xyaw ua keyog qhia:

• AHP (matrix)+microencapsulated liab phosphorus (tshuab tsim roj kub qis)+nano-SiO₂(kev tiv taus kev sib txhuam).
• Ua ke nrog cov tshuaj nplaum uas muaj zog lo rau (piv txwv li, acrylic-epoxy composite emulsion) thiab ua kom zoo dua qhov kev hloov kho ntawm qhov chaw kom qhov loj me ntawm cov khoom me me/kev sib kis ruaj khov.
  Kev sim ntxivxav tau los ua pov thawj qhov kev sib xyaw ua ke ntawm thermal-electrochemical.