PP V2 Flame Retardant Masterbatch Reference Formulation
Kuti mupeze UL94 V2 yoletsa moto mu PP (polypropylene) masterbatches, kuphatikiza kogwirizana kwa zoletsa moto ndikofunikira pamene mukusunga magwiridwe antchito ndi mawonekedwe a makina. Pansipa pali malangizo abwino opangira ndi kufotokozera:
I. Malangizo Opangira Maziko
Kupanga Kobwezera Moto:
| Chigawo | Kutsegula (kuchuluka%) | Kufotokozera kwa Ntchito |
| PP Resin | 50-60% | Utomoni wonyamula (amalimbikitsa kusungunuka kwa madzi ambiri, mwachitsanzo, MFI 20-30 g/10min) |
| Aluminiyamu Hypophosphite | 15-20% | Gwero la asidi, limalimbikitsa mapangidwe a char, kukhazikika kwa kutentha kwabwino kwa PP processing |
| Zinc Borate | 5-8% | Choletsa moto chogwirizana, chimaletsa utsi ndipo chimawonjezera kuletsa moto m'gawo la mpweya |
| Aluminiyamu Hydroxide Yosinthidwa Pamwamba | 10-15% | Kuwonongeka kwa endothermic, kumachepetsa kutentha kwa kuyaka (kuchiza pamwamba, mwachitsanzo, cholumikizira cha silane, chomwe chimalimbikitsidwa) |
| Dipentaerythritol (Di-PE) | 5-8% | Kaboni yochokera ku gwero, imagwirizana ndi asidi yochokera ku gwero kuti ipange mpweya wotuluka m'thupi |
| Melamine Polyphosphate (MPP) | 3-5% | Gwero la mpweya (chowonjezera chovomerezeka), limatulutsa mpweya wosagwira ntchito kuti liwonjezere mphamvu ya thupi |
| Woletsa Kutaya Madontho (PTFE) | 0.3-0.5% | Amachepetsa kusungunuka kwa madzi (ngati mukufuna V2, chifukwa kutsika kwa madzi kumaloledwa) |
| Antioxidant (1010/168) | 0.3-0.5% | Zimaletsa kuwonongeka kwa okosijeni pa kutentha panthawi yokonza |
| Mafuta Opaka (Zinc Stearate) | 0.5-1% | Zimathandiza kuti ntchito yokonza zinthu iziyenda bwino komanso kuti ifalikire bwino |
| Chonyamulira ndi Utoto wa Utoto | Monga momwe zimafunikira | Sankhani utoto wosatentha kwambiri kuti mupewe kuyankhidwa ndi zinthu zoletsa moto |
II. Mfundo Zofunikira Zokonzera
- Dongosolo Loletsa Moto Logwirizana
- Intumescent Flame Retardant (IFR):Aluminium hypophosphite (gwero la asidi) + Di-PE (gwero la kaboni) + MPP (gwero la mpweya) imapanga dongosolo la IFR, ndikupanga gawo loteteza kutentha kuti lilepheretse kutentha ndi mpweya.
- Kugwirizana kwa Zinc Borate:Amachitapo kanthu ndi aluminiyamu hypophosphite kuti apange gawo loteteza ngati galasi, zomwe zimapangitsa kuti lawi lichepe.
- Aluminium Hydroxide Yosinthidwa:Kukonza pamwamba kumachepetsa kutulutsa chinyezi panthawi yokonza zinthu komanso kumachepetsa kutentha kwa endothermic.
- Kulinganiza ndi Kukonza Magwiridwe Antchito
- Kuchuluka kwa zinthu zoletsa moto kuyenera kulamulidwa pa nthawi35-45%kuti apewe kutayika kwakukulu kwa katundu wamakina.
- Gwiritsani ntchitoutomoni wa PP wokhala ndi MFI wambiri (monga, PPH-Y40)kuti ziwongolere kufalikira kwa masterbatch ndikuchepetsa kukhuthala.
- Malangizo Oyesera & Kutsimikizira
- Mayeso Oyaka Oyimirira a UL94:Onetsetsani kuti malawi amadzizimitsa okha mkatiMasekondi 60pambuyo pa kuyatsa kawiri.
- Kuyesa kwa Makina:Yang'anani kwambiri pa mphamvu yokoka (≥20 MPa) ndi mphamvu ya kukhudza (≥4 kJ/m²).
- Kukhazikika kwa Kutentha (TGA):Tsimikizirani kuti kutentha kwa moto komwe kumawononga kukugwirizana ndi kuchuluka kwa PP processing (180–220°C).
III. Zosintha Zosankha
- Pa Kutha kwa Moto Kwambiri (monga, V0):
- Wonjezerani aluminium hypophosphite ku25%, onjezani2% silikoni(kuletsa utsi), ndikukweza PTFE ku0.8%.
- Mapulogalamu Okhudza Mtengo:
- Chepetsani kuchuluka kwa MPP ndikuwonjezera pang'ono aluminiyamu hydroxide (onetsetsani kuti kukonza kukhazikika).
IV. Mfundo Zofunika Kuziganizira
- Kupanga kwa Masterbatch:Sakanizani zinthu zoletsa moto ndi utomoni wonyamulira;kutulutsa kwa screw ziwiri (180–210°C)akulimbikitsidwa.
- Kuumitsa kwa Aluminium Hydroxide:Umitsani pa110°C kwa maola 4kuti mupewe thovu panthawi yokonza.
- Di-PE/Aluminium Hypophosphite Ratio:Sungani1:2 mpaka 1:3kuti pakhale bwino kwambiri mapangidwe a char.
Ndi njira yabwino kwambiri yopangira ndi kukonza,UL94 V2 yoletsa motoZingatheke kuchitika nthawi zonse pamene zikusunga magwiridwe antchito a makina ndi kukhazikika kwa utoto. Mayeso ang'onoang'ono amalimbikitsidwa kuti akonzedwe bwino kutengera zotsatira za mayeso.
More info., pls contact lucy@taifeng-fr.com
Nthawi yotumizira: Julayi-08-2025
