Tsarin Tsarin MCA da Aluminum Hypophosphite (AHP) a cikin Rufin Rabawa don Rage Wuta

Tsarin Tsarin MCA da Aluminum Hypophosphite (AHP) a cikin Rufin Rabawa don Rage Wuta

Dangane da takamaiman buƙatun mai amfani don rufin raba mai hana harshen wuta, halayenMelamine Cyanurate (MCA)kumaAluminum Hypophosphite (AHP)ana yin nazari kamar haka:

1. Dacewa da Tsarin Slurry

• MCA:
• Tsarin ruwa:Yana buƙatar gyaran saman (misali, sinadaran haɗin silane ko surfactants) don inganta watsewa; in ba haka ba, haɗuwa na iya faruwa.
• Tsarin NMP:Zai iya nuna ƙaramin kumburi a cikin ruwan da ke narkewa a cikin polar (an ba da shawarar: gwajin kumburi bayan nutsewa na kwana 7).
• AHP:
• Tsarin ruwa:Kyakkyawan watsewa, amma dole ne a sarrafa pH (yanayin acidic na iya haifar da hydrolysis).
• Tsarin NMP:Babban kwanciyar hankali na sinadarai tare da ƙarancin haɗarin kumburi.
  Kammalawa:AHP yana nuna dacewa mafi kyau, yayin da MCA ke buƙatar gyara.

2. Girman ƙwayoyin cuta da Tsarin Shafawa

• MCA:
• Asali D50: ~1–2 μm; yana buƙatar niƙa (misali, niƙa yashi) don rage girman barbashi, amma yana iya lalata tsarin sa mai layi, wanda ke shafar ingancin hana ƙonewa.
• Dole ne a tabbatar da daidaiton da aka samu bayan niƙa (duba SEM).
• AHP:
• Asali D50: Yawanci ≤5 μm; niƙa har zuwa D50 0.5 μm/D90 1 μm ana iya cimmawa (niƙa da yawa na iya haifar da ƙarar danko).
  Kammalawa:MCA tana da sauƙin daidaitawa da girman ƙwayoyin cuta tare da ƙarancin haɗarin aiwatarwa.

3. Juriyar Mannewa da Juriyar Katsewa

• MCA:
• Ƙarancin polarity yana haifar da rashin mannewa da fina-finan raba PE/PP; yana buƙatar mahaɗar acrylic mai tushen 5-10% (misali, PVDF-HFP).
• Babban ma'aunin gogayya na iya buƙatar ƙara 0.5–1% nano-SiO₂ don inganta juriyar lalacewa.
• AHP:
• Rukunin hydroxyl na saman suna samar da haɗin hydrogen tare da mai rabawa, wanda ke inganta mannewa, amma har yanzu ana buƙatar haɗin polyurethane 3-5%.
• Taurin da ya fi girma (Mohs ~ 3) na iya haifar da zubar da ƙananan ƙwayoyin cuta a ƙarƙashin dogon gogayya (yana buƙatar gwajin zagaye).
  Kammalawa:AHP yana ba da mafi kyawun aiki gabaɗaya amma yana buƙatar inganta haɗin manne.

4. Daidaiton Zafi da Rushewar Halaye

• MCA:
• Zafin ruɓewa: 260–310°C; ba zai iya samar da iskar gas a 120–150°C ba, wanda hakan zai iya sa ya kasa danne kwararar zafi.
• AHP:
• Zafin ruɓewa: 280–310°C, kuma bai isa ba don samar da iskar gas mai ƙarancin zafi.
  Muhimmin Matsala:Dukansu suna ruɓewa sama da kewayon da aka nufa (120–150°C).Mafita:
• Gabatar da masu haɗa sinadarai masu ƙarancin zafin jiki (misali, phosphorus ja da aka ɓoye a cikin microcapsulated, kewayon rushewa: 150–200°C) ko kuma ammonium polyphosphate da aka gyara (APP, wanda aka shafa don daidaita rushewar zuwa 140–180°C).
• Tsara waniHaɗin MCA/APP (rabo na 6:4)don amfani da samar da iskar gas mai ƙarancin zafi na APP + hana harshen wuta na MCA.

5. Juriyar Lantarki da Tsabtace Wutar Lantarki

• MCA:
• Melamine mara aiki ta hanyar lantarki, amma ba shi da sauran sinadarai (tsarki ≥99.5% da ake buƙata) na iya haifar da rugujewar electrolyte.
• AHP:
• Dole ne a rage ƙazanta mai tsami (misali, H₃PO₂) (gwajin ICP: ions na ƙarfe ≤10 ppm) don guje wa hanzarta haɓakar ruwa na LiPF₆.
  Kammalawa:Dukansu suna buƙatar tsarki mai yawa (≥99%), amma MCA ya fi sauƙin tsarkakewa.

Cikakken Shawarwari kan Magani

1. Zaɓin Babban Mai Rage Wuta:

• An fi so:AHP (daidaitaccen watsewa/mannewa) + mai haɗakar ƙarancin zafin jiki (misali, 5% jan phosphorus mai ɓoye a cikin microcapsulated).
• Madadin:MCA da aka gyara (wanda aka haɗa da carboxyl don watsa ruwa) + mai haɗin gwiwa na APP.

1. Inganta Tsarin Aiki:

• Tsarin slurry:AHP (90%) + polyurethane mai ɗaurewa (7%) + sinadarin jika (BYK-346, 0.5%) + defoamer (2%).
• Sigogi na niƙa:Injin niƙa mai nauyin 0.3 mm ZrO₂, 2000 rpm, awanni 2 (maƙasudin D90 ≤1 μm).

1. Gwaje-gwajen Tabbatarwa:

• Rushewar zafi:TGA (rashin nauyi <1% a 120°C/awa 2; fitar da iskar gas a 150°C/minti 30 ta hanyar GC-MS).
• Kwanciyar hankali ta lantarki:An lura da SEM bayan kwana 30 a cikin 1M LiPF₆ EC/DMC a zafin jiki na 60°C.

Shawarar ƙarshe

MCA ko AHP ba su cika dukkan buƙatu ba.tsarin gaurayean ba da shawara:

• AHP (matrix)+jan phosphorus mai ƙarancin zafin jiki (mai samar da iskar gas mai ƙarancin zafi)+nano-SiO₂(juriyar abrasion).
• Haɗa shi da resin ruwa mai mannewa sosai (misali, emulsion na acrylic-epoxy) kuma inganta gyaran saman don daidaita girman barbashi/watsawa.
  Ƙarin gwajiana buƙatar tabbatar da haɗin gwiwar thermal-electrochemical.