Naqshadaynta Formula ee MCA iyo Aluminium Hypophosphite (AHP) ee ku jira Dahaarka Kala soocida ee Dib u Dhigista Ololka

Naqshadaynta Formula ee MCA iyo Aluminium Hypophosphite (AHP) ee ku jira Dahaarka Kala soocida ee Dib u Dhigista Ololka

Iyada oo ku saleysan shuruudaha gaarka ah ee isticmaalaha ee dahaarka kala soocida ololka, sifooyinkaMelamine Cyanurate (MCA)iyoAluminium Hypophosphite (AHP)waxaa loo lafa guray sida soo socota:

1. Waafaqid Nidaamyada Slurry

• MCA:
• Nidaamyada aqueous:Wuxuu u baahan yahay wax ka beddelka dusha sare (tusaale, wakiilada isku-xidhka silane ama qalab-sameeyaha) si loo hagaajiyo kala firdhisanaanta; Haddii kale, agglomeration ayaa dhici karta.
• Nidaamyada NMP:Waxaa laga yaabaa inay barar yar ku soo bandhigto dareerayaasha dabaylaha (lagu taliyay: tijaabi heerka bararka ka dib 7-maalmood quusin).
• AHP:
• Nidaamyada aqueous:Kala firdhisanaan wanaagsan, laakiin pH waa in la xakameeyaa (xaalad aysiidh ah ayaa laga yaabaa inay keento hydrolysis).
• Nidaamyada NMP:Degganaanshiyo kiimiko oo sarreeya oo leh khatarta bararka ugu yar.
  Gabagabo:AHP waxay muujinaysaa waafaqid ka wanaagsan, halka MCA ay u baahan tahay wax ka beddel.

2. Cabbirka Walxaha iyo La qabsiga Habka Dahaarka

• MCA:
• Asalka D50: ~ 1-2 μm; waxay u baahan tahay shiidid (tusaale, ciid-shiidid) si loo yareeyo cabbirka walxaha, laakiin waxa laga yaabaa inay dhaawici karto qaab-dhismeedkeeda lakabka ah, taasoo saamaynaysa waxtarka-dib-u-dhigista ololka.
• Midnimada shiida ka dib waa in la xaqiijiyaa (fiiri SEM).
• AHP:
• Asalka D50: Caadiyan ≤5 μm; shiidid ilaa D50 0.5 μm/D90 1 μm waa la gaari karaa
  Gabagabo:MCA waxay leedahay la qabsiga cabbirka walxaha ka sii wanaagsan oo leh khatarta habka hoose.

3. Isku-xidhka iyo Iska-caabbinta Abrasion

• MCA:
• Polarity hooseeya waxay keenaysaa adhesion liidata oo leh filimada kala soocida PE/PP; waxay u baahan tahay 5-10% xidheyaal akrilik ku salaysan (tusaale, PVDF-HFP).
• Isku-dhafka sare ee isku-dhafka ayaa laga yaabaa inuu u baahdo ku darista 0.5-1% nano-SiO₂ si loo hagaajiyo caabbinta xirashada.
• AHP:
• Kooxaha dusha sare ee hydroxyl waxay sameeyaan curaarta hydrogen ee kala soocida, hagaajinta adhesion, laakiin 3-5% polyurethane xidhayaasha ayaa wali loo baahan yahay.
• adkaanta sare (Mohs ~ 3) waxa laga yaabaa inay sababto daadashada qayb yar oo ka mid ah xuubabka yar yar ee is jiid-jiidka daba dheeraaday (waxay u baahan tahay tijaabo wareeg ah).
  Gabagabo:AHP waxay bixisaa waxqabad guud oo wanaagsan laakiin waxay u baahan tahay hagaajinta xidhidhka.

4. Dejinta kulaylka iyo Guryaha Burbursan

• MCA:
• Heerkulka burburka: 260-310 ° C; ma dhalin karo gaas 120-150°C, taasoo suurtogal ah inay ku guul daraysato inay xakamayso socodka kulaylka.
• AHP:
• Heerkulka burburka: 280-310 ° C, sidoo kale kuma filna jiilka gaaska heerkulka hooseeya.
  Arrin Muhiim ah:Labaduba waxa ay ka sarreeyaan inta la beegsanayo (120-150°C).Xalka:
• Soo bandhig kuwa kulaylka hooseeya (tusaale, fosfooraska cas microencapsulated, kala goynta kala duwan: 150-200°C) ama ammonium polyphosphate oo la beddelay (APP, dahaarka leh si loo hagaajiyo burburka ilaa 140-180°C).
• Naqshad anIsku-dhafka MCA/APP (6:4 saamiga)si looga faa'iidaysto jiilka gaaska heerkulka hooseeya ee APP + xakamaynta ololka wajiga gaaska ee MCA.

5. Iska caabinta korantada iyo daxalka

• MCA:
• Electrochemically anert, laakiin hadhaaga melamine bilaashka ah (nadiifinta ≥99.5% loo baahan yahay) waxay kicin kartaa burburka korantada.
• AHP:
• wasakhda aysidhka ah (tusaale, H₃PO₂) waa in la yareeyaa (Tijaabada ICP: ion biraha ≤10 ppm) si looga fogaado dardargelinta LiPF₆ hydrolysis.
  Gabagabo:Labaduba waxay u baahan yihiin nadiif sare (≥99%), laakiin MCA way fududahay in la nadiifiyo.

Soo jeedinta Xalka Dhamaystiran

1. Xulashada Ololka Hore:

• La door biday:AHP (kala-firdhinta/adhesion isku dheeli tiran) + isku-dubarid heerkul hoose ah (tusaale, 5% fosfooraska cas ee microencapsulated).
• Beddelka:MCA la beddelay (carboxyl-ku-tallaalid loogu talagalay kala firdhinta aqueous) + APP synergist.

1. Habraaca Hagaajinta:

• Caano-xumada:AHP (90%) + polyurethane binder (7%) + wakiilka qoynta (BYK-346, 0.5%) + defoamer (2%).
• Halbeegyada wax shiididda:Warshad ciid leh 0.3 mm ZrO₂ kuul, 2000 rpm, 2 saac (bartilmaameedka D90 ≤1 μm).

1. Tijaabooyinka Xaqiijinta:

• Burburka kulaylka:TGA (miisaan dhimis <1% at 120°C/2h; soosaarka gaaska 150°C/30min iyada oo loo sii marayo GC-MS).
• Degganaanshaha korantada:U fiirsashada SEM ka dib 30-maalmood immersion gudaha 1M LiPF₆ EC/DMC at 60°C.

Talo soo jeedintii u dambaysay

MCA iyo AHP midna ma buuxinayo dhammaan shuruudaha. Anidaamka isku-dhafka ahwaxaa lagula talinayaa:

• AHP (matrix)+Fosfooraska cas microencapsulated (gaas dhaliyaha heerkulka hooseeya)+nano-SiO₂(iska caabinta nabarrada).
• Ku dheji xabagta aqueous-ku-dhejin-sare leh (tusaale, emulsion-ka acrylic-epoxy composite emulsion) oo wanaaji beddelka dusha sare ee cabbirka walxaha/ xasilloonida kala firdhiso.
  Baaritaan dheeraad ahayaa loo baahan yahay si loo ansixiyo isku-dhafka kulaylka-electrochemical.