Yadda za a rage yawan hayakin da ake amfani da shi wajen manne epoxy tare da AHP da MCA masu hana harshen wuta?

Ƙara sinadarin aluminum hypophosphite da MCA zuwa manne na epoxy yana haifar da hayaki mai yawa. Amfani da zinc borate don rage yawan hayaki da fitar da hayaki abu ne mai yiwuwa, amma ana buƙatar inganta tsarin da ake da shi don rabon.

1. Tsarin Dakatar da Hayaki na Zinc Borate

Zinc borate yana da ingantaccen maganin kashe hayaki da kuma maganin hana harshen wuta. Tsarinsa ya haɗa da:

• Tallafawa Tsarin Char: Yana samar da wani kauri mai kama da wuta yayin konewa, yana ware iskar oxygen da zafi, da kuma rage fitar da iskar gas mai kama da wuta.
• Hana Shan Sigari: Yana haɓaka halayen haɗin gwiwa don rage samar da ƙwayoyin hayaki, yana rage yawan hayaki (musamman ma yana da tasiri ga polymers kamar epoxy).
• Tasirin Haɗin gwiwa: Yana ƙara ƙarfin juriyar harshen wuta idan aka haɗa shi da sinadarai masu hana harshen wuta waɗanda aka yi da phosphorus (misali, aluminum hypophosphite) da kuma sinadarai masu hana harshen wuta waɗanda aka yi da nitrogen (misali, MCA).

2. Madadin ko Karin Maganin Hayaƙi

Don ƙarin inganta rage hayaki, yi la'akari da waɗannan hanyoyin haɗin gwiwa:

• Molybdenum mahadi(misali, zinc molybdate, molybdenum trioxide): Ya fi zinc borate tasiri amma ya fi tsada; an ba da shawarar a haɗa shi da zinc borate (misali, zinc borate: zinc molybdate = 2:1).
• Aluminum/Magnesium Hydroxide: Yana buƙatar ɗaukar kaya mai yawa (20-40 phr), wanda zai iya shafar halayen injinan epoxy—a daidaita shi da kyau.

3. Gyaran Tsarin da Aka Ba da Shawara

Idan aka yi la'akari da cewa asalin tsarin shinealuminum hypophosphite + MCA, ga umarnin ingantawa (bisa ga sassa 100 na resin epoxy):

Zabi na 1: Ƙara Zinc Borate Kai Tsaye

• Aluminum hypophosphite: Rage daga 20-30 hr zuwa15-25 phr
• MCA: Rage daga 10-15 phr zuwa8-12 hr
• Zinc borate: Ƙara5-15 phr(fara gwaji da ƙarfe 10 na safe)
• Jimlar abun ciki na hana harshen wuta: Ci gaba a30-40 ph(guji yawan da ke shafar aikin manne).

Zabi na 2: Haɗin gwiwa tsakanin Zinc Borate da Zinc Molybdate

• Gilashin aluminum:15-20 ph
• MCA:5-10 phr
• Borate na zinc:8-12 hr
• Sinadarin zinc molybdate:4-6 phr
• Jimlar abun ciki na hana harshen wuta:30-35 ph.

4. Ma'aunin Tabbatarwa Mai Muhimmanci

• Rashin jinkirin harshen wuta: Konawa a tsaye na UL-94, gwaje-gwajen LOI (maƙasudi: V-0 ko LOI >30%).
• Yawan Hayaki: Yi amfani da na'urar gwada yawan hayaki (misali, ɗakin hayaki na NBS) don kwatanta raguwar ƙimar yawan hayaki (SDR).
• Kayayyakin Inji: Tabbatar da ƙarfin juriya da ƙarfin mannewa sun cika buƙatun bayan an warke.
• Tsarin sarrafawa: Tabbatar da watsawar na'urorin hana harshen wuta iri ɗaya ba tare da shafar danko ko lokacin warkarwa ba.

5. Abubuwan da za a yi la'akari da su

• Sarrafa Girman Barbashi: Zaɓi zinc borate mai girman nano (misali, girman barbashi <1 μm) don inganta watsawa.
• Gyaran Fuskar: Yi amfani da sinadarin zinc borate da sinadarin silane domin ƙara dacewa da sinadarin epoxy resin.
• Bin ƙa'idodi: Tabbatar da cewa an zaɓi na'urorin hana harshen wuta da suka dace da RoHS, REACH, da sauran ƙa'idodi.

6. Misalin Tsarin (Nazari)

7. Takaitaccen bayani

• Zinc borate zaɓi ne mai inganci don rage fitar hayaki. Ana ba da shawarar ƙarawa10-15 hryayin da ake rage yawan sinadarin aluminum hypophosphite/MCA a matsakaici.
• Don ƙarin rage hayaki, a haɗa shi da mahaɗan molybdenum (misali,4-6 phr).
• Tabbatar da gwaji ya zama dole don daidaita jinkirin wuta, hana hayaki, da kuma halayen injiniya.

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