Ingabe Izinto Ezivimbela Ilangabe Ze-Phosphorus-Nitrogen Zingafinyelela Isilinganiso Se-V0 Ku-Silicone Rubber?
Uma amakhasimende ebuza ngokusebenzisa inhlanganisela ye-aluminium hypophosphite (AHP) noma i-AHP + MCA kuphela yokuvimbela ilangabi okungenalo i-halogen ngerabha ye-silicone ukuze kufinyelelwe isilinganiso se-V0, impendulo inguyebo—kodwa ukulungiswa komthamo kuyadingeka ngokusekelwe ezidingweni zokuvimbela ilangabi. Ngezansi kunezincomo ezithile zezimo ezahlukene:
1. Ukusebenzisa i-Aluminium Hypophosphite (AHP) Kuphela
Izimo ezisebenzayo: Ngezidingo ze-UL94 V-1/V-2 noma izinhlelo zokusebenza ezizwela imithombo ye-nitrogen (isb., ukugwema imiphumela ye-foam evela ku-MCA engathinta ukubukeka).
Ukwakheka okunconywayo:
- Irabha eyisisekelo: Irabha ye-silicone ye-Methyl vinyl (VMQ, 100 phr)
- I-aluminium hypophosphite (AHP): 20–30 phr
- Okuqukethwe okuphezulu kwe-phosphorus (40%); ama-20 ph anikeza okuqukethwe kwe-phosphorus okungu-8% kokuvimbela ilangabi okuyisisekelo.
- Ku-UL94 V-0, khuphuka uye ku-30 phr (kungathinta izakhiwo zemishini).
- Ukugcwalisa okuqinisayo: I-silica efumile (10–15 phr, igcina amandla)
- Izithasiselo: Uwoyela we-Hydroxyl silicone (2 phr, uthuthukisa ukucubungula) + i-ejenti yokwelapha (i-peroxide noma uhlelo lwe-platinum)
Izici:
- I-AHP yodwa ithembele ekubambezelekeni komlilo kwesigaba esihlanganisiwe (ukwakheka kwe-char), okuthuthukisa kakhulu inkomba ye-oxygen (LOI) yerabha ye-silicone kodwa ngokunciphisa intuthu.
- Isilinganiso esiphezulu (>25 phr) singandisa ubulukhuni bezinto; ukwengeza i-3-5 phr zinc borate kungathuthukisa ikhwalithi ye-char layer.
2. Inhlanganisela ye-AHP + MCA
Izimo ezisebenzayo: Izidingo ze-UL94 V-0, ezihlose umthamo ophansi wokwengeza kanye nokusebenzisana okubamba umlilo kwesigaba segesi.
Ukwakheka okunconywayo:
- Irabha eyisisekelo: VMQ (100 phr)
- I-aluminium hypophosphite (AHP): 12–15 phr
- Inikeza umthombo we-phosphorus, ikhuthaza ukwakheka kwama-char.
- I-MCA: 8–10 izifundo
- Umthombo we-nitrogen uhambisana ne-AHP (umphumela we-PN), ukhulula amagesi angasebenzi (isb., i-NH₃) ukucindezela ukusabalala komlilo.
- Ukugcwalisa okuqiniswayo: I-silica efumile (amaphr ayi-10)
- Izithasiselo: I-ejenti yokuhlanganisa i-Silane (i-1 phr, ithuthukisa ukuhlakazeka) + i-ejenti yokwelapha
Izici:
- Isilinganiso esiphelele sokuvimba ilangabi: ~20–25 phr, esiphansi kakhulu kune-AHP yodwa.
- I-MCA yehlisa umthamo we-AHP kodwa ingathinta kancane ukucaca (kunconywa i-nano-MCA uma kudingeka ukucaca).
3. Ukuqhathaniswa Kwepharamitha Eyisihluthulelo
| Ukwakheka | Ukulinda Komlilo Okulindelekile | Isilinganiso Esiphelele (phr) | Izinzuzo kanye nokubi |
|---|---|---|---|
| I-AHP yodwa (amaphr angu-20) | I-UL94 V-1 | 20 | Izindleko ezilula, eziphansi; i-V-0 idinga i-≥30 phr, kanye nokwehla kokusebenza. |
| I-AHP yodwa (30 phr) | I-UL94 V-0 | 30 | Ukuqina komlilo okuphezulu kodwa ukuqina okukhuphukile kanye nokwelulwa okunciphile. |
| I-AHP 15 + MCA 10 | I-UL94 V-0 | 25 | Umphumela wokubambisana, ukusebenza okulinganiselayo—kunconywa ezivivinyweni zokuqala. |
4. Izincomo Zokuhlola
- Ukuhlolwa kokubaluleka kwe-AHP + MCA (15+10 phr): Uma kufinyelelwa ku-V-0, yehlisa kancane kancane i-AHP (isb., 12+10).
- Ukuqinisekiswa kwe-AHP kuphela: Qala ku-20 phr, khulisa ngo-5 phr ngokuhlolwa ngakunye ukuze kuhlolwe i-LOI ne-UL94, kuqashwe izinguquko zesakhiwo semishini.
- Izidingo zokunciphisa intuthu: Faka i-3-5 phr zinc borate ekwakhiweni okungenhla ukuze unciphise intuthu ngaphandle kokuphazamisa ukulinda komlilo.
5. I-Ammonium Polyphosphate Ehlanganisiwe
Sinamakhasimende athile asebenzisa i-TF-201G ngempumelelo ukuze enze irabha ye-silicon.
Ukuze uthole ukuthuthukiswa okwengeziwe, cabanga ngokufaka amanani amancane e-aluminium hydroxide (10-15 phr) ukuze unciphise izindleko zizonke, yize lokhu kwandisa okuqukethwe okuphelele kokugcwalisa.
More inof., pls contact lucy@taifeng-fr.com
Isikhathi sokuthunyelwe: Julayi-25-2025
