Litlhahiso tsa Moralo oa Flame-Retardant bakeng sa Halogen-Free High-Impact Polystyrene (HIPS)
Litlhoko tsa bareki: HIPS e thibelang malakabe bakeng sa matlo a lisebelisoa tsa motlakase, matla a tšusumetso ≥7 kJ/m², melt flow index (MFI) ≈6 g/10min, ho bopa ente.
1. Phosphorus-Nitrogen Synergistic Flame-Retardant System
HIPS Sebopeho se sa Tloseng Lelakabe (Letlapa la 1)
| Karolo | E ea kenya (phr) | Litlhaloso |
| Resin ea HIP | 100 | Lisebelisoa tsa motheo |
| Ammonium polyphosphate (APP) | 15-20 | Mohloli oa phosphorus |
| Melamine cyanrate (MCA) | 5-10 | Mohloli oa naetrojene, o sebelisana le APP |
| graphite e atolositsoeng (EG) | 3-5 | E matlafatsa sebopeho sa 'mele |
| Anti-dripping agent (PTFE) | 0.3-0.5 | E thibela marotholi a qhibilihileng |
| Selekane (mohlala, HIP e kenyellelitsoeng ka MAH) | 2-3 | E ntlafatsa ho hasana |
Likaroloana:
- E fihletseUL94 V-0ka sebopeho sa char ea intumescent ho tsoa ho APP/MCA synergy.
- Halogen e se na halogen le eco-friendly, empa e ka fokotsa thepa ea mochini; optimization e hlokahalang.
2. Metal Hydroxide Flame-Retardant System
Tlhahiso ea HIP (Letlapa la 2)
| Karolo | E ea kenya (phr) | Litlhaloso |
| Resin ea HIP | 100 | - |
| Aluminium hydroxide (ATH) | 40-60 | Sekoahelo sa mantlha sa lelakabe |
| Magnesium hydroxide (MH) | 10-20 | E tsamaisana le ATH |
| Silane coupling agent (mohlala, KH-550) | 1-2 | E ntlafatsa ho hasana ha li-filler |
| Toughener (mohlala, SEBS) | 5-8 | E lefella tahlehelo ea matla a tšusumetso |
Likaroloana:
- E hloka>50% loadingbakeng sa UL94 V-0, empa e theola matla le ho phalla ha matla.
- E loketse lits'ebetso tsa mosi o tlase / chefo e tlase (mohlala, lipalangoang tsa terene).
3. Phosphorus-Nitrogen Synergistic System (Aluminium Hypophosphite + MCA)
Mokhoa o ntlafalitsoeng oa HIPS
| Karolo | E ea kenya (phr) | Mosebetsi/Dintlha |
| HIPS (maemo a phahameng, mohlala, PS-777) | 100 | Thepa ea motheo (tšusumetso ≥5 kJ/m²) |
| Aluminium hypophosphite (AHP) | 12-15 | Mohloli oa phosphorus, botsitso ba mocheso |
| Melamine cyanrate (MCA) | 6-8 | Mohloli oa naetrojene, o hokahana le AHP |
| SEBS/SBS | 8-10 | Toughener ea bohlokoa bakeng sa tšusumetso ≥7 kJ/m² |
| Parafine e metsi/oli ea soya e kentsoeng ka epoxidized | 1-2 | Lubricant, e ntlafatsa phallo / hasane |
| PTFE | 0.3-0.5 | Sethibela ho rotha |
| Antioxidant 1010 | 0.2 | E thibela ho senyeha |
Lintlha tsa bohlokoa tsa moralo:
- Khetho ea Resin:
- Sebelisa limaraka tse phahameng tsa HIP (mohlala,Chimei PH-888,Sechaba PG-33) e nang le tšusumetso e matla ea 5–6 kJ/m². SEBS e eketsa ho tiea.
- Taolo ea Phallo:
- AHP / MCA fokotsa MFI; lefa ka mafura (mohlala, parafine ea metsi) kapa li-plasticizers (mohlala, oli ea soya e epoxidized).
- Haeba MFI e lula e le tlase, eketsa2-3 phr TPUho ntlafatsa phallo le boima.
- Ho netefatsoa ha Flame Retardancy:
- AHP e ka fokotsoa ho12 phrha e kopane le2-3 phr EGho boloka UL94 V-0.
- Bakeng saUL94 V-2, fokotsa meroalo e thibelang lelakabe ho etelletsa pele tšusumetso / phallo.
- Ente Molding Parameters:
- Mocheso:180–220°C(qoba ho senyeha ha AHP/HIPS).
- Lebelo la ente:Mahareng-hodimoho thibela ho tlatsoa ho sa fellang.
Ts'ebetso e Lebeletsoeng:
| Thepa | Boleng ba Sepheo | Tekanyetso ea Teko |
| Matla a amang | ≥7 kJ/m² | ISO 179/1eA |
| MFI (200°C/5 kg) | 5–7 g/10m | ASTM D1238 |
| Ho lieha ha lelakabe | UL94 V-0 (1.6 limilimithara) | UL94 |
| Matla a tšepe | ≥25 MPa | ISO 527 |
4. Mefuta e meng ea Tharollo
- Khetho e sa Mamelang Litšenyehelo: Kenya sebaka sa AHP hanyenyane kaphosphorus e khubelu ea microencapsulated (3-5 phr), empa ela hloko moeli oa mebala (bofubelu-bosootho).
- Netefatso: Etsa liteko tse nyane ho leka-lekanya tšusumetso khahlanong le ho lieha ha lelakabe pele ho ntlafatsa phallo.
More info. , pls contact lucy@taifeng-fr.com
Nako ea poso: Aug-15-2025
