Uburyo bwo gusesengura PP V2 Flame Retardant Masterbatch
Kugira ngo ugere ku gutinda kw'umuriro kwa UL94 V2 muri PP (polypropylene) masterbatches, hakenewe uruvange rw'ibintu bitinda kw'umuriro mu gihe habungabungwa imikorere myiza yo gutunganya no gucunga imiterere ya mekanike. Hano hari inama nziza yo gukoresha mu gutunganya imiterere hamwe n'ibisobanuro:
I. Icyifuzo cy'ishingiro ry'ikoreshwa ry'imashini
Uburyo bwo gukora ibiyobyabwenge bitica umuriro:
| Igice | Gupakira (uburemere%) | Ibisobanuro by'imikorere |
| PP Resin | 50-60% | Resin itwara ibintu (ni byiza gukoresha urwego rwo hejuru rw'amazi ashongeshejwe, urugero, MFI 20-30 g/iminota 10) |
| Hypophosfite ya aluminiyumu | 15-20% | Isoko ya aside, itera imbere mu miterere y'ibara ry'umukara, ikanatuma ubushyuhe buhora buhagaze neza mu gutunganya PP |
| Borate ya Zinc | 5-8% | Irinda umuriro mu buryo buhuriweho, igabanya umwotsi kandi ikongera imihindagurikire y'umuriro mu buryo buhuriweho na gaze |
| Hydroxide ya Aluminium yahinduwe ku buso | 10-15% | Gusenyuka kwa endothermike, bigabanya ubushyuhe bwo gutwika (gutunganya ubuso, urugero, silane coupling agent, ni ngombwa) |
| Dipentaerythritol (Di-PE) | 5-8% | Isoko ya karuboni, ikorana n'isoko ya aside kugira ngo ikore isura y'inyuma |
| Melamine Polyphosphate (MPP) | 3-5% | Isoko ya gaze (inyongeramusaruro isabwa), isohora imyuka idakora kugira ngo yongere ubushobozi bwo gutera inda |
| Umuti urwanya gutonyanga (PTFE) | 0.3-0.5% | Bigabanya amazi ashongesha (ni ngombwa kuri V2, kuko amazi ashongesha byemewe) |
| Antioxydant (1010/168) | 0.3-0.5% | Birinda kwangirika k'ubushyuhe mu gihe cyo gutunganya |
| Amavuta yo kwisiga (Sinc Stearate) | 0.5-1% | Binoza uburyo bwo gutunganya no gukwirakwiza amazi mu buryo buboneye |
| Ibara ry'imodoka n'ibara ry'ibara | Nkuko bikenewe | Hitamo ibara ririnda ubushyuhe bwinshi kugira ngo wirinde ingaruka z'ibidakoresha umuriro |
II. Ingingo z'ingenzi zo kunoza imikorere
- Sisitemu yo Kurwanya Umuriro Ikoresha Ubudahangarwa
- Intumecent Flame Retardant (IFR):Hypophosphite ya aluminiyumu (isoko ya aside) + Di-PE (isoko ya karuboni) + MPP (isoko ya gaze) ikora sisitemu ya IFR, ikora urwego rwa char rukingira ubushyuhe na ogisijeni.
- Ubufatanye bwa Zinc Borate:Ikora hamwe na hypophosphite ya aluminiyumu ikarema urwego rw'uburinzi rusa n'ikirahure, yongera uburibwe bw'umuriro butiyongera.
- Hydroxide ya Aluminium yahinduwe:Gutunganya ubuso bigabanya kurekura ubushuhe mu gihe cyo gutunganya, ariko bigatanga uburyo bwo kubora mu mubiri kugira ngo ubushyuhe bwo gutwika bugabanuke.
- Uburyo bwo gutunganya no gukoresha neza imikorere
- Umuzigo wose w'ibidashira by'umuriro ugomba kugenzurwa kuri35-45%kugira ngo hirindwe igihombo gikomeye ku mitungo y'ikoranabuhanga.
- Koresharesin ya PP ifite MFI nyinshi (urugero, PPH-Y40)kunoza ikwirakwira rya masterbatch no kugabanya ubukana bw'ibimera.
- Ibyifuzo byo gupima no kwemeza
- Ikizamini cyo gutwika gihagaze cya UL94:Menya neza ko umuriro uzimya wonyine imbereAmasegonda 60nyuma y'ingufu ebyiri.
- Isuzuma rya tekiniki:Ibande ku mbaraga zo gukurura (≥20 MPa) n'imbaraga z'ingaruka (≥4 kJ/m²).
- Guhagarara k'ubushyuhe (TGA):Genzura ko ubushyuhe bwo kubora butuma umuriro ugabanuka buhuye n'urugero rwo gutunganya PP (180–220°C).
III. Guhindura ibintu ku buryo bushoboka
- Ku bijyanye no kugabanya umuriro cyane (urugero, V0):
- Ongera aluminium hypophosphite kugeza kuri25%, ongeramo2% silicone(guhagarika umwotsi), no kuzamura PTFE ku0.8%.
- Porogaramu zikoresha amafaranga yiyongera ku giciro:
- Kugabanya ingano ya MPP no kongera aluminium hydroxide ku rugero ruciriritse (kugira ngo uburyo bwo kuyitunganya buhamye).
IV. Ibigomba kwitabwaho by'ingenzi
- Umusaruro wa Masterbatch:Vanga mbere ibintu bigabanya umuriro n'umusemburo w'imodoka;gusohora ibikoresho bibiri (180–210°C)ni byiza.
- Kumisha aluminiyumu hidroksidi:Kumisha kuri110°C mu gihe cy'amasaha 4kugira ngo hirindwe uduheri mu gihe cyo gutunganya.
- Ikigereranyo cya Di-PE / Aluminium Hypophosphite:GukomezaKuva 1:2 kugeza 1:3kugira ngo habeho imikorere myiza ya char.
Hamwe n'ubu buryo bwo kunoza uburyo bwo gutunganya no gutunganya,UL94 V2 idashobora gutinda kw'umurirobishobora kugerwaho buri gihe mu gihe habungabungwa imikorere yo gutunganya no kudahindagurika kw'amabara. Igeragezwa rito rirasabwa kugira ngo rikosorwe neza hashingiwe ku bisubizo by'ibizamini.
More info., pls contact lucy@taifeng-fr.com
Igihe cyo kohereza: Nyakanga-08-2025
