Zane-zane na Formula don MCA da Aluminum Hypophosphite (AHP) a cikin Rubutun Rabe don Tsayawa Harshe

Zane-zane na Formula don MCA da Aluminum Hypophosphite (AHP) a cikin Rubutun Rabe don Tsayawa Harshe

Dangane da ƙayyadaddun ƙayyadaddun buƙatun mai amfani don suturar masu rarraba wuta, halaye naMelamine Cyanurate (MCA)kumaAluminum Hypophosphite (AHP)ana yin nazari kamar haka:

1. Daidaitawa tare da Slurry Systems

• MCA:
• Tsarukan ruwa:Yana buƙatar gyaran ƙasa (misali, silane coupling agents ko surfactants) don inganta rarrabawa; in ba haka ba, agglomeration na iya faruwa.
• Tsarukan NMP:Yana iya nuna kumburi kaɗan a cikin abubuwan kaushi na polar (an shawarta: gwada ƙimar kumburi bayan nutsewar kwanaki 7).
• AHP:
• Tsarukan ruwa:Kyakkyawan rarrabawa, amma dole ne a sarrafa pH (yanayin acid na iya haifar da hydrolysis).
• Tsarukan NMP:Babban kwanciyar hankali na sinadarai tare da ƙarancin kumburin haɗari.
  Ƙarshe:AHP yana nuna mafi kyawun dacewa, yayin da MCA ke buƙatar gyara.

2. Girman Barbashi da Daidaituwar Tsarin Rufe

• MCA:
• Asalin D50: ~ 1-2 μm; yana buƙatar niƙa (misali, miƙen yashi) don rage girman barbashi, amma yana iya lalata tsarin sa, yana shafar ingancin harshen wuta.
• Dole ne a tabbatar da daidaito bayan-niƙa (dubawar SEM).
• AHP:
• Asali D50: Yawanci ≤5 μm; niƙa zuwa D50 0.5 μm/D90 1 μm abu ne mai yiwuwa (yawan niƙa na iya haifar da slurry danko spikes).
  Ƙarshe:MCA yana da mafi kyawun daidaita girman barbashi tare da ƙananan haɗarin tsari.

3. Adhesion da Abrasion Resistance

• MCA:
• Ƙananan polarity yana haifar da rashin daidaituwa tare da fina-finai na PE / PP; yana buƙatar 5-10% masu ɗaure tushen acrylic (misali, PVDF-HFP).
• Babban juzu'i na iya buƙatar ƙara 0.5-1% nano-SiO₂ don haɓaka juriya.
• AHP:
• Ƙungiyoyin hydroxyl na saman suna samar da haɗin gwiwar hydrogen tare da mai rarrabawa, inganta haɓakawa, amma 3-5% polyurethane binders har yanzu ana buƙatar.
• Tauri mafi girma (Mohs ~ 3) na iya haifar da zubar da ƙananan ƙwayoyin cuta a ƙarƙashin tsawan lokaci mai tsawo (yana buƙatar gwajin cyclic).
  Ƙarshe:AHP yana ba da ingantaccen aiki gabaɗaya amma yana buƙatar haɓaka ɗaure.

4. Thermal Stability da Rushe Properties

• MCA:
• Rubutun zafin jiki: 260-310 ° C; ba zai iya samar da iskar gas a 120-150 ° C ba, mai yuwuwar gazawar kawar da guduwar thermal.
• AHP:
• Zazzabi mai lalacewa: 280-310 ° C, kuma bai isa ba don samar da iskar gas mai ƙarancin zafi.
  Mahimmin Batu:Dukansu suna lalacewa sama da kewayon manufa (120-150 ° C).Magani:
• Gabatar da masu haɗin gwiwar ƙananan zafin jiki (misali, microencapsulated jan phosphorus, kewayon bazuwar: 150-200 ° C) ko gyara ammonium polyphosphate (APP, mai rufi don daidaita bazuwa zuwa 140-180 ° C).
• Zane anKundin MCA/APP (rabo 6:4)don ba da damar samar da iskar iskar gas mai ƙarancin zafin jiki na APP + hana harshen wuta-lokaci na MCA.

5. Electrochemical and Corrosion Resistance

• MCA:
• Electrochemically inert, amma saura melamine kyauta (tsarki ≥99.5% da ake buƙata) na iya haifar da bazuwar electrolyte.
• AHP:
• Dole ne a rage ƙazantar acidic (misali, H₃PO₂) (gwajin ICP: ions ƙarfe ≤10 ppm) don guje wa haɓaka LiPF₆ hydrolysis.
  Ƙarshe:Dukansu suna buƙatar babban tsabta (≥99%), amma MCA ya fi sauƙi don tsarkakewa.

Ƙimar Magani Mai Mahimmanci

1. Zaɓin Ƙunƙarar Farko na Farko:

• Wanda aka fi so:AHP (daidaitaccen tarwatsewa/mannewa) + mai daidaita yanayin zafi (misali, 5% microencapsulated jan phosphorus).
• Madadin:MCA da aka gyara (carboxyl-grafted don watsa ruwa mai ruwa) + APP synergist.

1. Haɓaka Tsari:

• Tsarin slurry:AHP (90%) + polyurethane mai ɗaure (7%) + wakili mai laushi (BYK-346, 0.5%) + defoamer (2%).
• Sigar niƙa:Niƙa mai yashi tare da 0.3 mm ZrO₂ beads, 2000 rpm, 2 h (manufa D90 ≤1 μm).

1. Gwajin Tabbatarwa:

• Rushewar thermal:TGA (asarar nauyi <1% a 120°C/2h; fitarwar gas a 150°C/30min ta GC-MS).
• Kwanciyar wutar lantarki:Kulawar SEM bayan nutsewar kwanaki 30 a cikin 1M LiPF₆ EC/DMC a 60°C.

Shawarwari na ƙarshe

Babu MCA ko AHP kadai ya cika duk buƙatu. Atsarin matasanana shawarta:

• AHP (matrix)+microencapsulated ja phosphorus (ƙananan janareta na iskar gas)+nano-SiO₂(Abrasion resistance).
• Biyu tare da wani high-mako ruwa guduro (misali, acrylic-epoxy hada emulsion) da kuma inganta surface gyara ga barbashi size / watsawa kwanciyar hankali.
  Karin gwajiana buƙatar don tabbatar da haɗin gwiwar thermal-electrochemical synergy.