Mfundo yofunika
M'zaka zaposachedwa, pakhala kudera nkhawa za kuopsa kwa chilengedwe ndi thanzi lomwe limabwera chifukwa cha ma halogen-based flame retardants omwe amagwiritsidwa ntchito mu pulasitiki.Zotsatira zake, zoletsa moto zosakhala za halogen zatchuka chifukwa cha mawonekedwe awo otetezeka komanso okhazikika.
Zoletsa moto zopanda halogen zimagwira ntchito posokoneza kuyaka komwe kumachitika mapulasitiki akayaka moto.
1.Amakwaniritsa izi mwa kusokoneza thupi ndi mankhwala ndi mpweya woyaka womwe umatulutsidwa panthawi yoyaka.Imodzi mwa njira zodziwika bwino ndi kupanga kaboni woteteza pamwamba pa pulasitiki.
2. Zikatenthedwa ndi kutentha, zoletsa moto za halogen zimakumana ndi ma chemical reaction, omwe amatulutsa madzi kapena mpweya wina wosayaka.Mipweya imeneyi imapanga chotchinga pakati pa pulasitiki ndi lawi lamoto, motero kumachepetsa kufalikira kwa moto.
3. Zowonongeka zamoto zopanda halogen zimawola ndikupanga wosanjikiza wokhazikika wa carbonized, wotchedwa char, womwe umakhala ngati chotchinga chakuthupi, kulepheretsa kutulutsidwa kwina kwa mpweya woyaka.
4. Komanso, ma halogen-free flame retardants amatha kusungunula mpweya woyaka ndi ionizing ndikugwira ma free radicals ndi zinthu zomwe zimatha kuyaka.Kuchita uku kumaphwanya mphamvu ya kuyaka, ndikuchepetsanso mphamvu yamoto.
Ammonium polyphosphate ndi phosphorous-nayitrogeni-halogen-free flame retardant.Ili ndi magwiridwe antchito oyaka moto m'mapulasitiki okhala ndi zinthu zopanda poizoni komanso zachilengedwe.
Plastics Application
Mapulasitiki oletsa moto monga FR PP, FR PE, FR PA, FR PET, FR PBT ndi zina zotero amagwiritsidwa ntchito popanga magalimoto mkati mwagalimoto, monga ma dashboards, mapanelo a zitseko, zigawo zapampando, zotchingira magetsi, ma tray a chingwe, kukana moto. mapanelo amagetsi, ma switchgears, mpanda wamagetsi, ndi zonyamulira madzi, mapaipi agesi
Flame retardant standard (UL94)
UL 94 ndi mulingo woyaka moto wa pulasitiki wotulutsidwa ndi Underwriters Laboratories (USA).Muyezo umayika mapulasitiki molingana ndi momwe amawotchera mosiyanasiyana komanso makulidwe ake kuchokera kumafuta otsika kwambiri oletsa moto mpaka ambiri osayaka moto m'magulu asanu ndi limodzi.
| Mtengo wa UL94 | Tanthauzo la Mulingo |
| V-2 | Kuwotcha kumayima mkati mwa masekondi 30 pagawo lomwe limalola madontho a pulasitiki oyaka. |
| V-1 | Kuwotcha kumayima mkati mwa masekondi 30 pagawo loyima kulola madontho apulasitiki osapsa. |
| V-0 | Kuyaka kumayima mkati mwa masekondi 10 pagawo loyima ndikulola madontho apulasitiki osapsa. |
Mapangidwe Otchulidwa
| Zakuthupi | Fomula S1 | Fomu S2 |
| Homopolymerization PP (H110MA) | 77.3% | |
| Copolymerization PP (EP300M) | 77.3% | |
| Mafuta (EBS) | 0.2% | 0.2% |
| Antioxidant (B215) | 0.3% | 0.3% |
| Anti-dripping (FA500H) | 0.2% | 0.2% |
| Mtengo wa TF-241 | 22-24% | 23-25% |
| Katundu wamakina kutengera 30% kuwonjezera voliyumu ya TF-241.With 30% TF-241 kufikira UL94 V-0(1.5mm) | ||
| Kanthu | Fomula S1 | Fomu S2 |
| Kutentha kwamphamvu kwamphamvu | V0 (1.5mm | UL94 V-0 (1.5mm) |
| Chepetsani index ya okosijeni (%) | 30 | 28 |
| Mphamvu yamagetsi (MPa) | 28 | 23 |
| Elongation panthawi yopuma (%) | 53 | 102 |
| Kuyaka moto mlingo pambuyo madzi owiritsa (70 ℃, 48h) | V0 (3.2mm) | V0 (3.2mm) |
| V0 (1.5mm) | V0 (1.5mm) | |
| Flexural modulus (MPa) | 2315 | 1981 |
| Meltindex(230 ℃,2.16KG) | 6.5 | 3.2 |
