Ukwakheka Kwereferensi Ye-PVC Flame Retardant Masterbatch
Ukuklama nokwenza ngcono ukwakheka kwe-PVC flame retardant masterbatch, kufaka phakathi ama-flame retardant akhona kanye nezingxenye ezibalulekile ezisebenzisanayo, kuhloswe ukuvimbela ama-flame kwe-UL94 V0 (okulungiselelwa ku-V2 ngokunciphisa inani lezithako).
I. Isiphakamiso Sefomula Eyisisekelo (i-PVC Eqinile)
Ukwakheka Okungavimbeli Umlilo Kwepulasitiki:
| Ingxenye | Ukulayisha (ubude%) | Incazelo Yomsebenzi |
|---|---|---|
| I-resin ye-PVC (uhlobo lwe-SG-5) | 40-50% | Izinto ze-matrix, okungcono izinga eliphansi lokumuncwa kwamafutha |
| I-hypophosphite ye-aluminium | 12-15% | Umthombo we-asidi wokwakheka kwe-char, ucindezela ukukhanya kwangemuva |
| I-borate ye-zinc | 8-10% | Ukucindezela intuthu okusebenzisanayo, kuphendula ne-HCl kusuka ekuboleni kwe-PVC |
| i-aluminium hydroxide eguqulwe phezulu | 10-12% | Ukupholisa kwe-endothermic, kudinga ukugqoka kwe-silane coupling agent (izinga lokushisa lokubola lihambisana nokucutshungulwa kwe-PVC) |
| I-antimony trioxide (Sb₂O₃) | 3-5% | I-synergist eyinhloko, ithuthukisa ukubambezeleka komlilo ngokusebenzisa i-Cl-Sb synergy |
| I-Zinc molybdate (isinciphisi somusi) | 5-8% | Isithasiselo esinconywayo, kunciphisa ukuminyana kwentuthu (ukhiye wokuhambisana ne-DIN 4102) |
| I-Dipentaerythritol (i-DPE) | 2-3% | Usizo lokwakha i-char, luthuthukisa ukulawulwa kokuncibilika |
| Isiqinisi sokushisa (i-Ca-Zn composite) | 3-4% | Kubalulekile ukuvimbela ukuwohloka kokushisa ngesikhathi sokucubungula |
| I-Plasticizer (i-DOP noma i-eco-alternative) | 0-8% | Lungisa ubulukhuni (ongakukhetha nge-PVC eqinile) |
| Isithambisi (i-calcium stearate) | 1-1.5% | Kuthuthukisa ukucutshungulwa, kuvimbela ukunamathela kwe-roller |
| Usizo lokucubungula (i-ACR) | 1-2% | Kuthuthukisa i-plasticization kanye nokusabalala kwe-masterbatch |
II. Izimiso Zokwenza Izinto Zibe Ngcono
- Uhlelo Lokuvumelanisa Oluvimbela Amalangabi
- I-Cl-Sb Synergy: I-chlorine engokwemvelo ye-PVC (56%) ehlanganiswe ne-3-5% Sb₂O₃ yakha isithiyo se-SbCl₃, esivumela ukuvimbela ilangabi lesigaba segesi/isigaba esinciphile.
- Ukucindezela Intuthu: I-Zinc molybdate + i-zinc borate yehlisa ukuminyana kwentuthu ngo->40% (ASTM E662).
- Ukuthuthukiswa Kwe-Char: I-aluminium hypophosphite + DPE ikhiqiza i-cross-linked phosphoric ester char ku-200–250°C, okuhlanganisa ukuntuleka kwe-PVC kwe-char esigabeni sokuqala.
- Ukucubungula Ukuzivumelanisa Nezimo
- Ukuqhathaniswa Kwezinga Lokushisa: I-Aluminium hypophosphite (ukubola okungu-≥250°C) kanye ne-Al(OH)₃ (ezinzile kuya ku->200°C) eguquliwe ebusweni ifanela ukucutshungulwa kwe-PVC (160–190°C).
- Ukuqinisekiswa Kokuzinza: Iziqinisi ze-Ca-Zn zivimbela ukuwohloka kwe-resin ekukhishweni kwe-HCl; i-ACR isiza ukwenziwa kwe-plaster ezinhlelweni zokugcwalisa okuphezulu.
- Ibhalansi Yokusebenza
- Umthwalo ophelele ovimbela ilangabi: 35–45%, ukugcinwa kwamandla okunamathela ≥80% (okuvamile ≥40 MPa ye-PVC eqinile).
- Ukuze kube nokuguquguquka (i-PVC eguquguqukayo), faka uwoyela wesoya ongu-8% ofakwe i-epoxidized (i-plasticizer ekabili/i-flame retardant esikhundleni se-DOP).
III. Amamethrikhi Okuhlola Nokuqinisekisa
Ukuvimbela Umlilo:
- I-UL94 V0 (ukujiya okungu-1.6 mm)
- Inkomba Yokukhawulela I-Oxygen (LOI) ≥32%
Ukulawula Intuthu:
- Ukuhlolwa kwegumbi lomusi le-NBS: Ubuningi obukhulu bokukhanya obuqondileDs≤150 (imodi yokushisa)
Izakhiwo Zemishini:
- Amandla okunamathela ≥35 MPa (aqinile), ukunwebeka ngesikhathi sokuphumula ≥200% (kuyaguquguquka)
Ukuzinza Kokushisa:
- I-DMA iqinisekisa ukuthi akukho ukwehla kwe-modulus ku-180°C.
IV. Ukulungiswa Kwezindleko Nobungani Nemvelo
Okunye Okungabizi Kakhulu:
- Nciphisa i-zinc molybdate ibe ngu-3%, faka i-Mg(OH)₂ esikhundleni se-Al(OH)₃ (khuphula uye ku-15%).
Isixazululo Esingenawo Ama-Antimony:
- Susa i-Sb₂O₃, sebenzisa i-2% ye-aluminium diethylphosphinate + 5% nano-kaolin (ukusebenza kahle okuphansi kancane; kudinga ukujiya okungu-3 mm ku-V0).
Okubalulekile Ku-smoke:
- Engeza i-1% ye-silicone resin-coated carbon black ukuze wehlise kakhulu ukuminyana kwentuthu ngo-15%.
V. Iziqondiso Zokucubungula
- Ukulandelana Kokuxuba:
I-resin ye-PVC → isiqinisi + igrisi → izinto ezivimbela ilangabi (eziphansi kuya kweziphezulu) → i-plasticizer (eyokugcina ifakwe isifutho). - Ukucubungula Amazinga Okushisa:
Izindawo zokukhipha izikulufo ezimbili: 160°C (ukudla) → 170°C (ukuncibilika) → 180°C (ukuxuba) → 175°C (ikhanda eliyindilinga). - Ukugxila kwe-Masterbatch:
Ncoma ukulayisha okungu-50%; hlanganisa i-PVC engu-1:1 ne-virgin ukuze ugqume ngomjovo ekugcineni.
Lokhu kuhlanganiswa kulinganisela ukuqina komlilo okuphezulu, intuthu ephansi, kanye nokuqina kokucubungula. Kuyelulekwa ukuthi kwenziwe izivivinyo ezincane ngaphambi kokulinganisa, ngokulungiswa okusekelwe efomini lomkhiqizo (amashidi, izintambo, njll.).
More info., pls contact lucy@taifeng-fr.com
Isikhathi sokuthunyelwe: Julayi-08-2025
