Ukwakheka Kwereferensi Ye-PP V2 Flame Retardant Masterbatch
Ukuze kufezwe ukuvimbela ilangabi kwe-UL94 V2 kuma-masterbatches e-PP (polypropylene), inhlanganisela yokusebenzisana kwezivimbela ilangabi iyadingeka ngenkathi kugcinwa ukusebenza kokucubungula kanye nezakhiwo zemishini. Ngezansi kunesincomo sokwenza okulungiselelwe kahle kanye nezincazelo:
I. Isincomo Sokwakheka Okuyisisekelo
Ukwakheka Okubambezela Ilangabi:
| Ingxenye | Ukulayisha (ubude%) | Incazelo Yomsebenzi |
| I-PP Resin | 50-60% | I-resin yokuthwala (ngincoma izinga lokugeleza kokuncibilika okuphezulu, isib., i-MFI 20-30 g/10min) |
| I-Aluminium Hypophosphite | 15-20% | Umthombo we-asidi, ukhuthaza ukwakheka kwe-char, ukuzinza okuhle kokushisa kokucubungula i-PP |
| I-Zinc Borate | 5-8% | I-synergistic flame retardant, icindezela intuthu futhi ithuthukise i-gas-phase flame retardant |
| I-Aluminium Hydroxide Eguquliwe Ngaphezulu | 10-15% | Ukubola kwe-endothermic, kwehlisa izinga lokushisa lokushisa (ukwelashwa kwendawo, isib., i-silane coupling agent, kunconywa) |
| I-Dipentaerythritol (i-Di-PE) | 5-8% | Umthombo wekhabhoni, uhambisana nomthombo we-asidi ukuze wakhe i-intumescent char |
| I-Melamine Polyphosphate (MPP) | 3-5% | Umthombo wegesi (isengezo esinconywayo), ukhipha amagesi angasebenzi ukuze kuthuthukiswe ukuzwela kwamathumbu |
| I-Anti-Dripping Agent (PTFE) | 0.3-0.5% | Kunciphisa ukuconsa okuncibilikayo (ongakukhetha ku-V2, njengoba ukuconsa kuvunyelwe) |
| I-Antioxidant (1010/168) | 0.3-0.5% | Ivimbela ukuwohloka kwe-oxidative yokushisa ngesikhathi sokucubungula |
| Isithambisi (i-Zinc Stearate) | 0.5-1% | Kuthuthukisa ukugeleza kokucubungula kanye nokuhlakazeka |
| Isithwali Sombala kanye Ne-Pigment | Njengoba kudingeka | Khetha imibala evikela ukushisa okuphezulu ukuze ugweme ukusabela ngezinto ezivimbela ilangabi |
II. Amaphuzu Okuthuthukisa Okubalulekile
- Uhlelo Lokubuyisana Lomlilo Oluhambisanayo
- I-Intumescent Flame Retardant (IFR):I-aluminium hypophosphite (umthombo we-asidi) + i-Di-PE (umthombo wekhabhoni) + i-MPP (umthombo wegesi) yakha uhlelo lwe-IFR, okudala ungqimba lwe-char oluvikela ukushisa nomoya-mpilo.
- Ukusebenzisana kwe-Zinc Borate:Iphendula ne-aluminium hypophosphite ukuze yakhe ungqimba oluvikelayo olufana nengilazi, okwandisa ukuvinjelwa komlilo wesigaba segesi.
- I-Aluminium Hydroxide Eguquliwe:Ukwelashwa kwendawo kunciphisa ukukhishwa komswakama ngesikhathi sokucubungula ngenkathi kunikeza ukubola kwe-endothermic ukuze kunciphise izinga lokushisa lokushisa.
- Ibhalansi Yokucubungula Nokusebenza
- Umthwalo ophelele ovimbela ilangabi kufanele ulawulwe ku-35-45%ukugwema ukulahlekelwa okukhulu kwempahla yemishini.
- Sebenzisai-resin ye-PP ene-MFI ephezulu (isb., i-PPH-Y40)ukuthuthukisa ukusabalala kwe-masterbatch nokunciphisa i-viscosity.
- Izincomo Zokuhlola Nokuqinisekisa
- Ukuhlolwa Kokushisa Okuqondile kwe-UL94:Qinisekisa ukuthi amalangabi ayazicima wona ngaphakathiImizuzwana engama-60ngemva kokushiswa kabili.
- Ukuhlolwa Kwemishini:Gxila emandleni okudonsa (≥20 MPa) kanye namandla okushaya (≥4 kJ/m²).
- Ukuzinza Kokushisa (TGA):Qinisekisa ukuthi amazinga okushisa okubola okugcina ilangabi ahambisana nobubanzi bokucubungula be-PP (180–220°C).
III. Ukulungiswa Ongakukhetha
- Ukuze Ukwazi Ukumelana Nokushisa Okuphezulu (isb., V0):
- Khulisa i-aluminium hypophosphite ibe25%, engezai-silicone engu-2%(ukucindezela intuthu), bese uphakamisa i-PTFE ibe0.8%.
- Izicelo Ezibucayi Ngezindleko:
- Nciphisa okuqukethwe yi-MPP futhi wandise i-aluminium hydroxide ngokulinganisela (qinisekisa ukuzinza kokucubungula).
IV. Izinto Ezibalulekile Okufanele Uzicabangele
- Ukukhiqizwa kwe-Masterbatch:Hlanganisa izinto ezivimbela ilangabi kusengaphambili ne-resin yokuthwala;ukukhishwa kwezikulufo ezimbili (180–210°C)kuyanconywa.
- Ukomisa i-Aluminium Hydroxide:Yomisa e-110°C amahora ama-4ukuvimbela amabhamuza ngesikhathi sokucubungula.
- I-Di-PE/Aluminium Hypophosphite Ratio:Gcina1:2 kuya ku-1:3ukuze kube nokusebenza kahle kokwakheka kwe-char.
Ngale ndlela yokwenza kanye nokucubungula ethuthukisiwe,Ukuvimbela ilangabi le-UL94 V2kungafinyelelwa njalo ngenkathi kulondolozwa ukusebenza kokucubungula kanye nokuqina kombala. Kunconywa izivivinyo ezincane zokulungisa kahle ngokusekelwe emiphumeleni yokuhlolwa.
More info., pls contact lucy@taifeng-fr.com
Isikhathi sokuthunyelwe: Julayi-08-2025
