Flame retardant Aluminium Hypophosphite ndi MCA ya EVA Heat-Shrink Tubing

Flame retardant Aluminium Hypophosphite ndi MCA ya EVA Heat-Shrink Tubing

Mukamagwiritsa ntchito aluminiyamu hypophosphite, MCA (melamine cyanrate), ndi magnesium hydroxide ngati zoletsa malawi mu machubu ochepetsa kutentha kwa EVA, milingo yovomerezeka ndi mayendedwe okhathamiritsa ndi motere:

1. Mlingo wovomerezeka wa Flame Retardants

Aluminium Hypophosphite

• Mlingo:5% -10%
• Ntchito:Zothandiza kwambiri zoletsa moto, zimathandizira kupanga char, komanso zimachepetsa kutulutsa kutentha.
• Zindikirani:Kuchulukitsitsa kungasokoneze kusinthasintha kwa zinthu; ma synergistic agents ayenera kuphatikizidwa kuti akwaniritse bwino.

MCA (Melamine Cyanurate)

• Mlingo:10% -15%
• Ntchito:Gas-phase flame retardant, imatenga kutentha ndi kutulutsa mpweya woipa (monga, NH₃), synergizing ndi aluminiyamu hypophosphite kuonjezera kuchedwa kwa lawi.
• Zindikirani:Kuchulukitsitsa kungayambitse kusamuka; Kugwirizana ndi EVA kuyenera kutsimikiziridwa.

Magnesium Hydrooxide (Mg(OH) ₂)

• Mlingo:20% -30%
• Ntchito:Kuwola kwa endothermic kumatulutsa mpweya wamadzi, kusungunula mpweya woyaka komanso kupondereza utsi.
• Zindikirani:Kukweza kwakukulu kungachepetse mawotchi; kusinthidwa pamwamba tikulimbikitsidwa kusintha kubalalitsidwa.

2. Kukonzekera Kukonzekera Malangizo

• Total Flame Retardant System:Siziyenera kupitilira 50% kuti muchepetse kuchedwa kwamoto komanso kusinthika (mwachitsanzo, kusinthasintha, kuchuluka kwa kuchepa).
• Zotsatira za Synergistic:
• Aluminiyamu hypophosphite ndi MCA akhoza kuchepetsa mlingo payekha (mwachitsanzo, 8% zotayidwa hypophosphite + 12% MCA).
• Magnesium hydroxide imathandizira kuchedwa kwa lawi kudzera mu endothermic zotsatira ndikuchepetsa utsi.
• Chithandizo cha Pamwamba:Silane coupling agents amatha kupititsa patsogolo kubalalitsidwa ndi kulumikizana pakati pa magnesium hydroxide.
• Zowonjezera Zowonjezera:
• Onjezani 2% -5% opanga ma char (monga pentaerythritol) kuti muzitha kukhazikika.
• Phatikizani zopangira mapulasitiki pang'ono (mwachitsanzo, mafuta a soya) kuti apereke kutayika kwa kusinthasintha.

3. Malangizo Otsimikizira Ntchito

• Kuyesa kwa Flame Retardancy:
• UL94 vertical burning test (chandamale: V-0).
• Kuchepetsa Oxygen Index (LOI> 28%).
• Katundu Wamakina:
• Yesetsani kulimba kwamphamvu ndi kutalika kwa nthawi yopuma kuti muwonetsetse kuti kusinthasintha kumakwaniritsa zofunikira pakugwiritsa ntchito.
• Kuthekera:
• Monitor Melt Flow Index (MFI) kuti mupewe zovuta pakukonza chifukwa chakudzaza kwambiri.

4. Kuganizira za Mtengo ndi Zachilengedwe

• Mtengo wa Ndalama:Aluminium hypophosphite ndi yokwera mtengo; mlingo wake ukhoza kuchepetsedwa (kuwonjezeredwa ndi MCA) kuti athetse ndalama.
• Ubwino Wachilengedwe:Magnesium hydroxide ndi yopanda poizoni komanso yopondereza utsi, ndikupangitsa kuti ikhale yoyenera kugwiritsa ntchito zachilengedwe.

Kupanga Zitsanzo (zongotchula chabe):

• Aluminium Hypophosphite: 8%
• MCA: 12%
• Magnesium hydroxide: 25%
• EVA Matrix: 50%
• Zowonjezera zina (zolumikizana, mapulasitiki, ndi zina zotero): 5%