Na Li-Retardants tsa Phosphorus-Nitrogen Flame li ka Finyella Boemo ba V0 ho Rabara ea Silicone?
Ha bareki ba botsa ka ho sebelisa feela aluminium hypophosphite (AHP) kapa AHP + MCA metsoako bakeng sa ho lieha ha lelakabe la halogen ka har'a rabara ea silicone ho fihlela litekanyetso tsa V0, karabo ke e-empa ho hlokahala liphetoho tsa litekanyetso ho latela litlhoko tsa ho lieha ha lelakabe. Ka tlase ke litlhahiso tse khethehileng 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 tsotellang mehloli ea naetrojene (mohlala, ho qoba litlamorao tse tsoang ho MCA tse ka amang chebahalo).
Moetso o khothalelitsoeng:
- Rabara ea motheo: Methyl vinyl silicone rabara (VMQ, 100 phr)
- Aluminium hypophosphite (AHP): 20-30 phr
- Tekanyo e phahameng ea phosphorus (40%); 20 phr e fana ka ~ 8% ea phosphorus content bakeng sa ho lieha ha lelakabe la motheo.
- Bakeng sa UL94 V-0, eketsa ho 30 phr (e ka ama thepa ea mochini).
- Filler e matlafatsang: Silika e chesang (10-15 phr, e boloka matla)
- Li-additives: Oli ea silicone ea Hydroxyl (2 phr, e ntlafatsa ts'ebetso) + e phekolang (peroxide kapa platinum system)
Litšobotsi:
- AHP feela e itšetlehile ka "condensed-phase flame retardancy" (char formation), e ntlafatsa haholo index ea oksijene (LOI) ea rabara ea silicone empa ka khatello e fokolang ea mosi.
- Tekanyo e phahameng (> 25 phr) e ka eketsa boima ba lintho tse bonahalang; ho eketsa 3-5 phr zinc borate ho ka ntlafatsa boleng ba char layer.
2. AHP + MCA Combination
Maemo a sebetsang: Litlhoko tsa UL94 V-0, tse reretsoeng ho eketsa litekanyetso tse tlase tse nang le synergy ea khase ea khase ea khase.
Moetso o khothalelitsoeng:
- Rabara ea motheo: VMQ (100 phr)
- Aluminium hypophosphite (AHP): 12-15 phr
- E fana ka mohloli oa phosphorus, e khothalletsa ho thehoa ha char.
- MCA: 8-10 phr
- Mohloli oa naetrojene o sebelisana le AHP (PN effect), o ntša likhase tse inert (mohlala, NH₃) ho hatella ho ata ha lelakabe.
- Filler e matlafatsang: Silika e tukang (10 phr)
- Li-additives: Silane coupling agent (1 phr, e ntlafatsa ho hasana) + e phekolang
Litšobotsi:
- Kakaretso ea litekanyetso tse thibelang lelakabe: ~ 20–25 phr, e tlase haholo ho feta AHP feela.
- MCA e fokotsa tekanyetso ea AHP empa e ka ama ponahalo ea pepenene hanyane (nano-MCA e khothalelitsoe haeba pepenene e hlokahala).
3. Papiso ea bohlokoa ea Parameter
| Tlhamo | Ho Lebeletsoe ho Fokotsa Lelakabe | Kakaretso ea Tekanyetso (phr) | Melemo le Mathata |
|---|---|---|---|
| AHP feela (20 phr) | UL94 V-1 | 20 | E bonolo, theko e tlase; V-0 e hloka ≥30 phr, ka ho senyeha ha ts'ebetso. |
| AHP feela (30 phr) | UL94 V-0 | 30 | Ho lieha ho hoholo ha lelakabe empa ho eketsehile ho thatafala le ho fokotsa bolelele. |
| AHP 15 + MCA 10 | UL94 V-0 | 25 | Phello ea Synergistic, ts'ebetso e leka-lekaneng-e khothalletsoang liteko tsa pele. |
4. Litlhahiso tsa Teko
- Teko ea pele bakeng sa AHP + MCA (15+10 phr): Haeba V-0 e finyelloa, butle-butle fokotsa AHP (mohlala, 12+10).
- Netefatso ea AHP feela: Qala ho 20 phr, eketsa ka 5 phr tekong ka 'ngoe ho lekola LOI le UL94, ho lekola liphetoho tsa thepa ea mochini.
- Litlhoko tsa khatello ea mosi: Eketsa 3–5 phr zinc borate ho metsoako e ka holimo ho fokotsa mosi ntle le ho senya ho lieha hoa mollo.
5. Ba bang ba Coated Ammonium Polyphosphate
Re na le bareki ba bang ba atlehileng ho sebelisa TF-201G bakeng sa rabara ea silicon.
Bakeng sa ntlafatso e eketsehileng, nahana ka ho kenyelletsa chelete e nyane ea aluminium hydroxide (10-15 phr) ho fokotsa litšenyehelo ka kakaretso, leha sena se eketsa kakaretso ea li-filler.
More inof., pls contact lucy@taifeng-fr.com
Nako ea poso: Jul-25-2025
