PVC Flame Retardant Masterbatch Yerekana
Gutegura no gutezimbere uburyo bwa PVC flame retardant masterbatch formulaire, ikubiyemo ibyuma bisigara bya flame biriho hamwe nibice byingenzi bigize synergiste, byibasira UL94 V0 flame retardancy (ishobora guhinduka kuri V2 mukugabanya umubare winyongera).
I. Icyifuzo cya formulaire (Rigid PVC)
Amashanyarazi ya plastike yumuriro:
| Ibigize | Kuremera (wt%) | Imikorere Ibisobanuro |
|---|---|---|
| PVC resin (ubwoko bwa SG-5) | 40-50% | Ibikoresho bya Matrix, nibyiza urwego rwo hasi rwamavuta |
| Aluminium hypophosphite | 12-15% | Inkomoko ya acide yo gushiraho char, ihagarika nyuma |
| Zinc borate | 8-10% | Guhagarika umwotsi wa synergiste, bifata hamwe na HCl kuva kubora kwa PVC |
| Ubuso bwahinduwe na hydroxide ya aluminium | 10-12% | Gukonjesha Endothermic, bisaba guhuza silane guhuza ibikoresho (kubora temp. Bihuye no gutunganya PVC) |
| Antimony trioxide (Sb₂O₃) | 3-5% | Ihuriro ryibanze, ryongera flame idindiza binyuze muri Cl-Sb |
| Zinc molybdate (suppressant umwotsi) | 5-8% | Basabwe kongeramo, bigabanya ubwinshi bwumwotsi (urufunguzo rwo kubahiriza DIN 4102) |
| Dipentaerythritol (DPE) | 2-3% | Imfashanyo ishushanya, itezimbere kugenzura-gutonyanga |
| Stabilisateur yumuriro (Ca-Zn ikomatanya) | 3-4% | Ibyingenzi kugirango wirinde kwangirika kwubushyuhe mugihe cyo gutunganya |
| Plastiseri (DOP cyangwa ibidukikije) | 0-8% | Hindura ubukana (birashoboka kuri PVC ikomeye) |
| Amavuta (calcium stearate) | 1-1.5% | Itezimbere imikorere, irinda uruziga |
| Imfashanyo yo gutunganya (ACR) | 1-2% | Gutezimbere plastification hamwe na masterbatch ikwirakwiza |
II. Amahame y'ingenzi yo gukoresha neza
- Flame Retardant Synergy Sisitemu
- Cl-Sb Synergy: PVC yihariye ya chlorine (56%) ihujwe na 3-5% Sb₂O₃ ikora inzitizi ya SbCl₃, ituma gaze-fase / yegeranye-icyiciro cya kabiri cyibikorwa byo gucana umuriro.
- Kurwanya Umwotsi: Zinc molybdate + zinc borate igabanya ubukana bwumwotsi kuri> 40% (ASTM E662).
- Gutezimbere kwa Char: Aluminium hypophosphite + DPE itanga umusemburo wa fosifori ester char kuri 200-250 ° C, bikishyura PVC yo kubura char kare.
- Gutunganya imiterere
- Guhuza Ubushyuhe: Aluminium hypophosphite (kubora ≥250 ° C) hamwe na Al (OH) yahinduwe hejuru ₃ (ihagaze kuri> 200 ° C) ikwiranye no gutunganya PVC (160–190 ° C).
- Ubwishingizi buhamye: Ca-Zn stabilisateur irinda kwangirika kwa resin kurekurwa kwa HCl; ACR ifasha plastike muri sisitemu yuzuye.
- Impirimbanyi
- Umuriro wose utwara imizigo: 35-45%, kugumana imbaraga zingana ≥80% (bisanzwe MP40 MPa kuri PVC ikomeye).
- Kugirango uhindurwe (PVC yoroheje), usimbuze DOP n'amavuta ya soya ya epoxiside ya 8% (dual plastizer / flame retardant).
III. Kwipimisha & Kwemeza Ibipimo
Kubura umuriro:
- UL94 V0 (uburebure bwa mm 1,6)
- Kugabanya Indangantego ya Oxygene (LOI) ≥32%
Kurwanya Umwotsi:
- Ikizamini cya NBS cyumwotsi: Ubwinshi bwa optique yuzuyeDs50150 (uburyo bwo gucana)
Ibikoresho bya mashini:
- Imbaraga zingana ≥35 MPa (rigid), kurambura kuruhuka ≥200% (flexible)
Ubushyuhe bwumuriro:
- DMA yemeza ko nta modulus yagabanutse kuri 180 ° C.
IV. Igiciro & Ibidukikije-Byiza Guhindura
Ibiciro Bito-Ibindi:
- Mugabanye zinc molybdate kuri 3%, usimbuze igice Al (OH) ₃ na Mg (OH) ₂ (kwiyongera kuri 15%).
Igisubizo kitarimo Antimoni:
- Kuraho Sb₂O₃, koresha 2% ya aluminium diethylphosifine + 5% nano-kaolin (imikorere yo hasi gato; bisaba uburebure bwa mm 3 kuri V0).
Icyambere cy'umwotsi:
- Ongeramo 1% silicone resin-yuzuye karubone umukara kugirango urusheho kugabanya ubwinshi bwumwotsi 15%.
V. Amabwiriza yo gutunganya
- Kuvanga Urukurikirane:
PVC resin → stabilisateur + lubricant → flame retardants (hasi cyane) - Gutunganya Ubushyuhe:
Uturere twibice bibiri: 160 ° C (kugaburira) → 170 ° C (gushonga) → 180 ° C (kuvanga) → 175 ° C (gupfa umutwe). - Kwibanda kuri Masterbatch:
Saba 50% gupakira; Kuvanga 1: 1 hamwe na PVC yisugi kugirango ukoreshe amaherezo.
Iyi formulaire iringaniza umuriro mwinshi, umwotsi muke, hamwe no gutunganya neza. Ibigeragezo bito birasabwa mbere yo gupima, hamwe nibihinduka bishingiye kumiterere y'ibicuruzwa (impapuro, insinga, nibindi).
More info., pls contact lucy@taifeng-fr.com
Igihe cyo kohereza: Nyakanga-08-2025
