PP V2 Flame Retardant Masterbatch Reference Formulation
Kuti mupeze UL94 V2 yoletsa moto mu PP (polypropylene) masterbatches, kuphatikiza kwa zinthu zoletsa moto kumafunika pamene mukusunga magwiridwe antchito ndi mphamvu zamakina. Pansipa pali malangizo abwino okonzekera 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 m'thupi kwa 20-30 g/10min), 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 Mitundu & Pigment | 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 Kulephera Kwambiri kwa Moto (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
