Na Dintho tse Sitisang Mollo tsa Phosphorus-Nitrogen di ka Finyella Tekanyetso ya V0 ho Rubber ya Silicone?

Na Dintho tse Sitisang Mollo tsa Phosphorus-Nitrogen di ka Finyella Tekanyetso ya V0 ho Rubber ya Silicone?

Ha bareki ba botsa ka ho sebelisa metsoako ea aluminium hypophosphite (AHP) kapa AHP + MCA feela bakeng sa ho thibela malakabe ntle le halogen ka rabara ea silicone ho fihlela tekanyo ea V0, karabo ke e—empa ho hlokahala liphetoho tsa tekanyo ho latela litlhoko tsa ho thibela malakabe. Ka tlase ke likhothaletso tse ikhethileng bakeng sa maemo a fapaneng:

1. Ho Sebelisa Aluminium Hypophosphite (AHP) Feela

Maemo a sebetsang: Bakeng sa litlhoko tsa UL94 V-1/V-2 kapa lits'ebetso tse amehang mehloling ea naetrojene (mohlala, ho qoba litlamorao tsa foam tse tsoang ho MCA tse ka amang ponahalo).

Tlhahiso e kgothaletswang:

• Rabara ea motheo: Rabara ea silicone ea methyl vinyl (VMQ, 100 phr)
• Aluminium hypophosphite (AHP): 20–30 phr
  • Sekhahla se phahameng sa phosphorus (40%); 20 ph e fana ka ~8% ya phosphorus bakeng sa ho thibela malakabe a mollo.
  • Bakeng sa UL94 V-0, eketsa ho fihlela ho 30 phr (e ka ama litšobotsi tsa mechini).
• Setlatsetso se matlafatsang: Silika e fumiloeng (li-phr tse 10-15, e boloka matla)
• Lintho tse ekelitsoeng: Oli ea Hydroxyl silicone (2 phr, e ntlafatsa ts'ebetso) + sesebelisoa sa ho phekola (peroxide kapa sistimi ea platinum)

Litšobotsi:

• AHP feela e itshetlehile hodima ho kgaotsa ha lelakabe la mokgahlelo o kgutsufaditsweng (ho thehwa ha char), e ntlafatsang index ya oksijene (LOI) haholo ya rabara ya silicone empa ka kgatello e fokolang ya mosi.
• Tekanyo e phahameng (>25 phr) e ka eketsa ho thatafala ha thepa; ho eketsa 3-5 phr zinc borate ho ka ntlafatsa boleng ba lera la char.

2. Motsoako oa AHP + MCA

Maemo a sebetsang: Litlhoko tsa UL94 V-0, tse reretsoeng tekanyo e tlase ea tlatsetso ka tšebelisano-'moho ea khase e thibelang malakabe.

Tlhahiso e kgothaletswang:

• Rabara ea motheo: VMQ (li-phr tse 100)
• Aluminium hypophosphite (AHP): 12–15 phr
  • E fana ka mohlodi wa phosphorus, e kgothaletsa ho thehwa ha mashala.
• MCA: 8–10
  • Mohlodi wa naetrojene o sebetsa mmoho le AHP (phello ya PN), o lokolla dikhase tse sa sebetseng (mohlala, NH₃) ho thibela ho ata ha malakabe.
• Setlatsetso se matlafatsang: Silika e fumiloeng (li-phr tse 10)
• Lintho tse ekelitsoeng: Moemeli oa ho kopanya Silane (1 phr, o ntlafatsa ho hasana) + moemeli oa ho phekola

Litšobotsi:

• Tekanyo eohle ea ho thibela malakabe: ~20–25 phr, e tlase haholo ho feta AHP feela.
• MCA e fokotsa tekanyo ea AHP empa e ka ama pepeneneng hanyane (ho khothaletsoa nano-MCA haeba pepeneneng e hlokahala).

3. Papiso ea Liparamente tsa Bohlokoa

4. Litlhahiso tsa Teko

1. Teko ea bohlokoa bakeng sa AHP + MCA (15+10 phr): Haeba V-0 e fihlelleha, fokotsa AHP butle-butle (mohlala, 12+10).
2. Netefatso ea AHP feela: Qala ka 20 phr, eketsa ka 5 phr ka teko ho lekola LOI le UL94, ho beha leihlo liphetoho tsa thepa ea mechini.
3. Litlhoko tsa ho thibela mosi: Kenya 3-5 phr zinc borate mefuteng e ka holimo ho fokotsa mosi ntle le ho beha kotsing ea ho tima mollo.

5. Ammonium Polyphosphate e 'Ngoe e Koahetsoeng

Re na le bareki ba bang ba sebelisang TF-201G ka katleho bakeng sa rabara ea silicon.

Bakeng sa ntlafatso e eketsehileng, nahana ka ho kenyelletsa aluminium hydroxide e nyane (10-15 phr) ho fokotsa litšenyehelo ka kakaretso, leha sena se eketsa kakaretso ea lintho tse tlatsang.

More inof., pls contact lucy@taifeng-fr.com