Aluminium Hypophosphite e thibelang malakabe le MCA bakeng sa EVA Heat-Shrink Tubing
Ha o sebelisa aluminium hypophosphite, MCA (melamine cyanurate), le magnesium hydroxide e le lintho tse thibelang lelakabe ka har'a li-tubing tse fokotsang mocheso oa EVA, mekhahlelo ea litekanyetso tse khothaletsoang le litaelo tsa ntlafatso li tjena:
1. Recommended Dosage of Flame Retardants
Hypophosphite ea aluminium
- Tekanyetso:5%–10%
- Mosebetsi:E sebetsa hantle haholo e thibelang malakabe, e khothalletsa ho thehoa ha char, 'me e fokotsa sekhahla sa ho lokolloa ha mocheso.
- Hlokomela:Lichelete tse feteletseng li ka 'na tsa senya ho tenyetseha ha lintho; li-synergistic agents li tlameha ho kenyelletsoa bakeng sa ho ntlafatsa.
MCA (Melamine Cyanurate)
- Tekanyetso:10%–15%
- Mosebetsi:E thibela lelakabe la khase, e monya mocheso le ho ntša likhase tse sa sebetseng (mohlala, NH₃), ho sebelisana le aluminium hypophosphite ho matlafatsa ho lieha ha lelakabe.
- Hlokomela:Ho jara haholo ho ka baka ho falla; Ho lumellana le EVA ho tlameha ho netefatsoa.
Magnesium Hydrooxide (Mg(OH)₂)
- Tekanyetso:20%–30%
- Mosebetsi:Endothermic decomposition e ntša mouoane oa metsi, e hlapolla likhase tse tukang le ho hatella mosi.
- Hlokomela:Ho jara holimo ho ka fokotsa thepa ea mochini; phetolo ya bokahodimo e kgothaletswa ho ntlafatsa ho hasana.
2. Litlhahiso tsa ho ntlafatsa ho theha
- Kakaretso ea Sistimi e Lekang Lelakabe:Ha ea lokela ho feta 50% ho leka-lekanya ho lieha ha lelakabe le ts'ebetso (mohlala, ho feto-fetoha ha maemo, sekhahla sa ho honyela).
- Liphello tsa Synergistic:
- Aluminium hypophosphite le MCA li ka fokotsa litekanyetso tsa motho ka mong (mohlala, 8% aluminium hypophosphite + 12% MCA).
- Magnesium hydroxide e tlatsana le ho lieha ha lelakabe ka litlamorao tsa endothermic ha e ntse e fokotsa mosi.
- Kalafo ea Bokaholimo:Silane coupling agents e ka ntlafatsa ho hasana le maqhama a sefahleho a magnesium hydroxide.
- Lisebelisoa tse thusang:
- Kenya 2%–5% ea lintho tse etsang char (mohlala, pentaerythritol) ho ntlafatsa botsitso ba char layer.
- Kenyelletsa li-plasticizers tse nyane (mohlala, oli ea soya e epoxidized) ho lefella tahlehelo ea ho feto-fetoha ha maemo.
3. Litaelo tsa netefatso ea ts'ebetso
- Teko ea ho Rata Lelakabe:
- Teko ea ho chesa e otlolohileng ea UL94 (sepheo: V-0).
- Lethathamo la Oxygen Index (LOI> 28%).
- Thepa ea Mechini:
- Lekola matla a ho tiea le bolelele nakong ea khefu ho netefatsa hore maemo a kopana le litlhoko tsa kopo.
- Tshebetso:
- Hlahloba Melt Flow Index (MFI) ho qoba mathata a ho sebetsa ka lebaka la li-fillers tse feteletseng.
4. Litšenyehelo le Litlhokomelo tsa Tikoloho
- Litšenyehelo:Aluminium hypophosphite e batla e theko e boima; tekanyo ea eona e ka fokotsoa (e tlatselletsoa ka MCA) ho laola litšenyehelo.
- Setsoalle sa Tikoloho:Magnesium hydroxide ha e na chefo ebile ha e hatelle mosi, e etsa hore e tšoanelehe bakeng sa ts'ebeliso ea tikoloho.
Tlhahiso ea Mohlala (bakeng sa litšupiso feela):
- Aluminium Hypophosphite: 8%
- MCA: 12%
- Magnesium Hydrooxide: 25%
- EVA Matrix: 50%
- Li-additives tse ling (li-coupling agents, plasticizers, joalo-joalo): 5%
Nako ea poso: Apr-27-2025
