Yadda za a rage yawan hayaki don mannen epoxy tare da mai kare harshen AHP da MCA?

Ƙarin aluminium hypophosphite da MCA zuwa mannen epoxy yana haifar da hayaki mai yawa. Yin amfani da borate na zinc don rage yawan hayaki da fitar da hayaki abu ne mai yiwuwa, amma tsarin da ake da shi yana buƙatar inganta shi don rabo.

1. Tsarin hana shan taba na Zinc Borate

Zinc borate ingantaccen maganin hana hayaki ne kuma mai hana harshen wuta. Hanyoyinsa sun haɗa da:

• Haɓaka Ƙirƙirar Char: Yana samar da laka mai yawa yayin konewa, keɓe iskar oxygen da zafi, da rage sakin iskar gas mai ƙonewa.
• Hana shan taba: Catalyzes giciye-linking halayen don rage hayaki barbashi tsara, ragewan hayaki yawa (musamman tasiri ga polymers kamar epoxy).
• Tasirin Haɗin kai: Yana haɓaka jinkirin harshen wuta lokacin da aka haɗa shi da tushen tushen phosphorus (misali, aluminium hypophosphite) da tushen nitrogen (misali, MCA).

2. Madadin ko Ƙarin Abubuwan da ke hana hayaki

Don ƙarin haɓakawa na kashe hayaki, yi la'akari da hanyoyin haɗin kai masu zuwa:

• Molybdenum mahadi(misali, zinc molybdate, molybdenum trioxide): Mafi tasiri fiye da borate zinc amma mai tsada; shawarar don haɗawa da zinc borate (misali, zinc borate: zinc molybdate = 2: 1).
• Aluminum/Magnesium Hydroxide: Yana buƙatar babban lodi (20-40 phr), wanda zai iya rinjayar kayan aikin epoxy-daidaita a hankali.

3. Shawarar gyare-gyaren Ƙirƙira

Zaton asali na asali shinealuminum hypophosphite + MCA, Anan akwai kwatancen ingantawa (dangane da resin epoxy sassa 100):

Zabin 1: Kai tsaye Ƙara Zinc Borate

• Aluminum hypophosphite: Rage daga 20-30 phr zuwa15-25 ph
• MCA: Rage daga 10-15 phr zuwa8-12 ph
• Zinc borate: Add5-15 ph(fara gwaji a 10 phr)
• Jimlar abun ciki mai ɗaukar wuta: Ci gaba a30-40 ph(kauce wa ɗimbin yawa da ke shafar aikin mannewa).

Zabin 2: Zinc Borate + Zinc Molybdate Synergy

• Aluminum hypophosphite:15-20 ph
• MCA:5-10 ph
• Zinc borate:8-12 ph
• Zinc molybdate:4-6 ph
• Jimlar abun ciki mai ɗaukar wuta:30-35 ph.

4. Ma'aunin Tabbatar da Maɓalli

• Jinkirin harshen wuta: UL-94 kona tsaye, gwajin LOI (manufa: V-0 ko LOI> 30%).
• Yawan shan tabaYi amfani da gwajin yawan hayaki (misali, ɗakin hayaki na NBS) don kwatanta raguwa a ƙimar ƙimar Smoke Density (SDR).
• Kayayyakin Injini: Tabbatar da ƙarfin ƙarfi da ƙarfin mannewa sun cika buƙatu bayan warkewa.
• Yin aiki: Tabbatar da rarrabuwar kawuna na masu kare wuta ba tare da shafar danko ko lokacin warkewa ba.

5. La'akari

• Sarrafa Girman Barbashi: Zaɓi don nano-sized zinc borate (misali, girman barbashi <1 μm) don inganta watsawa.
• Gyaran Sama: Yi maganin zinc borate tare da silane mai haɗa haɗin gwiwa don haɓaka dacewa tare da resin epoxy.
• Yarda da Ka'ida: Tabbatar da zaɓaɓɓen masu kare harshen wuta sun cika RoHS, REACH, da sauran ƙa'idodi.

6. Samfuran Misali (Reference)

7. Takaitawa

• Zinc borate zabi ne mai tasiri don rage fitar da hayaki. Ba da shawarar ƙarawa10-15 phyayin da matsakaicin rage aluminium hypophosphite/MCA abun ciki.
• Don ƙarin kashe hayaki, haɗa tare da mahadi na molybdenum (misali,4-6 ph).
• Tabbatar da gwaji ya zama dole don daidaita jinkirin harshen wuta, danne hayaki, da kaddarorin inji.

Let me know if you’d like any refinements! Lucy@taifeng-fr.com