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Aluminium Hypophosphite e thibelang malakabe le MCA bakeng sa Tubing ea EVA Heat-Shrink

Aluminium Hypophosphite e thibelang malakabe le MCA bakeng sa Tubing ea EVA Heat-Shrink

Ha o sebedisa aluminium hypophosphite, MCA (melamine cyanurate), le magnesium hydroxide e le dithibela-mafu ka hara tube ya ho fokotsa mocheso wa EVA, mefuta e kgothaletswang ya tekanyo le ditaelo tsa ntlafatso ke tse latelang:

1. Tekanyo e Khothaletsoang ea Lithibela-mollo

Hypophosphite ea Aluminium

Tekanyo:5%–10%
Mosebetsi:E thibela malakabe ka katleho e phahameng, e khothalletsa ho thehoa ha char, 'me e fokotsa sekhahla sa ho lokolloa ha mocheso.
Hlokomela:Bongata bo feteletseng bo ka sitisa ho tenyetseha ha thepa; metsoako e sebetsang e lokela ho kenyelletsoa bakeng sa ntlafatso.

MCA (Melamine Cyanurate)

Tekanyo:10%–15%
Mosebetsi:Se thibelang lelakabe la mokhahlelo oa khase, se monya mocheso le ho ntša likhase tse sa sebetseng (mohlala, NH₃), se sebelisana le aluminium hypophosphite ho eketsa ho thibela lelakabe.
Hlokomela:Ho jara lintho tse ngata ho ka baka ho falla; ho lumellana le EVA ho tlameha ho netefatsoa.

Magnesium Hydroxide (Mg(OH)₂)

Tekanyo:20%–30%
Mosebetsi:Ho bola ha endothermic ho ntsha mouoane wa metsi, ho ntsha dikhase tse tukang le ho thibela mosi.
Hlokomela:Ho jara boima bo bongata ho ka fokotsa thepa ea mechine; ho khothalletsoa ho fetola bokaholimo ho ntlafatsa ho hasana.

2. Litlhahiso tsa Ntlafatso ea Tlhahiso

Sistimi e Felletseng ea ho Sireletsa Mollo ka Kakaretso:Ha ea lokela ho feta 50% ho leka-lekanya ho lieha ha lelakabe le ho sebetsa hantle (mohlala, ho tenyetseha, sekhahla sa ho fokotseha).
Litlamorao tsa ho sebelisana 'moho:
Aluminium hypophosphite le MCA li ka fokotsa litekanyo ka bonngoe (mohlala, 8% aluminium hypophosphite + 12% MCA).
Magnesium hydroxide e tlatsana le ho lieha ha mollo ka litlamorao tsa endothermic ha ka nako e ts'oanang e fokotsa mosi.
Kalafo ea Bokaholimo:Disebediswa tsa ho kopanya tsa silane di ka ntlafatsa ho hasana le ho kopana ha magnesium hydroxide.
Lisebelisoa tse Thusang:
Kenya metsoako e etsang char-forming ea 2%–5% (mohlala, pentaerythritol) ho ntlafatsa botsitso ba lera la char.
Kenya metsoako e menyenyane ea polasetiki (mohlala, oli ea soya e nang le epoxidized) ho lefella tahlehelo ea ho tenyetseha.

3. Litaelo tsa Netefatso ea Ts'ebetso

Teko ea ho Fokotsa Lelakabe:
Teko ea ho chesa e otlolohileng ea UL94 (sepheo: V-0).
Tekanyo ea Oksijene e Lekanyetsoang (LOI >28%).
Thepa ea Mekaniki:
Lekola matla a ho tsikinyeha le ho lelefala ha khefu ho netefatsa hore ho tenyetseha ho fihlela litlhoko tsa ts'ebeliso.
Ho sebetsa hantle:
Hlokomela Melt Flow Index (MFI) ho qoba mathata a ho sebetsana le yona ka lebaka la ho tlatsa ho feteletseng.

4. Litlhokomelo tsa Litšenyehelo le Tikoloho

Tekanyo ea Litšenyehelo:Aluminium hypophosphite e theko e boima haholo; tekanyo ea eona e ka fokotsoa (e tlatselletsoa ka MCA) ho laola litšenyehelo.
Botsoalle ba Tikoloho:Magnesium hydroxide ha e na chefo ebile e thibela mosi, e leng se etsang hore e lokele ho sebelisoa bakeng sa tikoloho.

Mohlala oa ho qapa (bakeng sa litšupiso feela):