Tlhahiso ea PVC Flame Retardant Masterbatch Reference
Moralo le ntlafatso ea liforomo tsa PVC flame retardant masterbatch, tse kenyelletsang li-retardants tse ntseng li le teng tsa malakabe le likaroloana tsa bohlokoa tsa synergistic, tse lebisang UL94 V0 flame retardancy (e ka feto-fetohang ho V2 ka ho fokotsa palo ea tlatsetso).
I. Base Formula Commendation (Rigid PVC)
Sebopeho sa Plastic Flame Retardant:
| Karolo | E ea kenya (wt%) | Tlhaloso ea Mosebetsi |
|---|---|---|
| PVC resin (mofuta oa SG-5) | 40-50% | Lisebelisoa tsa matrix, ka ho khetheha boemo bo tlase ba ho monya oli |
| Hypophosphite ea aluminium | 12-15% | Mohloli oa asiti oa ho theha char, o hatella khanya e ka morao |
| Zinc borate | 8-10% | Khatello ea mosi e ts'oanang, e kopana le HCl ho tsoa ho PVC |
| Aluminium hydroxide e fetotsoeng ka holim'a metsi | 10-12% | Pholiso ea endothermic, e hloka hore silane coupling agent coupling (tempele ea ho bola. e tsamaisana le ts'ebetso ea PVC) |
| Antimony trioxide (Sb₂O₃) | 3-5% | Core synergist, e ntlafatsa ho lieha ha lelakabe ka Cl-Sb synergy |
| Zinc molybdate (sehatello sa mosi) | 5-8% | Kenyelletso e khothalelitsoeng, e fokotsa bongata ba mosi (senotlolo sa ho latela melao ea DIN 4102) |
| Dipentaerythritol (DPE) | 2-3% | Thuso ea ho etsa char, e ntlafatsa taolo ea ho qhibiliha ha metsi |
| Thermal stabilizer (motsoako oa Ca-Zn) | 3-4% | Ho bohlokoa ho thibela ho senyeha ha mocheso nakong ea ts'ebetso |
| Plasticizer (DOP kapa eco-alternative) | 0-8% | Fetola ho thatafala (ho ikhethela bakeng sa PVC e thata) |
| Lubricant (calcium stearate) | 1-1.5% | E ntlafatsa ts'ebetso, e thibela ho khomarela li-roller |
| Thuso ea ho sebetsa (ACR) | 1-2% | E matlafatsa plastification le masterbatch dispersion |
II. Melao-motheo ea Ntlafatso ea Bohlokoa
- Flame Retardant Synergy System
- Cl-Sb Synergy: PVC's inherent chlorine (56%) e kopantsoeng le 3-5% Sb₂O₃ e theha mokoallo oa SbCl₃, e nolofalletsang khase ea khase-mohato / e khutsufalitsoeng-mohato o habeli oa lelakabe la khato.
- Khatello ea Mosi: Zinc molybdate + zinki borate e fokotsa sekhahla sa mosi ka >40% (ASTM E662).
- Ntlafatso ea Char: Aluminium hypophosphite + DPE e hlahisa phosphoric ester char e amanang le sefapano ho 200-250 ° C, e lefella khaello ea char ea pele ea PVC.
- Ho ikamahanya le maemo
- Mocheso o Bapisang: Aluminium hypophosphite (ho bola ≥250 ° C) le Al (OH) ₃ e fetotsoeng holimo (e tsitsitseng ho> 200 ° C) e lumellana le ts'ebetso ea PVC (160-190 ° C).
- Tiisetso ea Botsitso: Li-stabilizers tsa Ca-Zn li thibela ho senyeha ha resin ho tsoa ho HCl; ACR e thusa plastification tsamaisong e phahameng ea ho tlatsa.
- Tekanyo ea Ts'ebetso
- Kakaretso ea lelakabe la retardant: 35-45%, ho boloka matla a tsitsitseng ≥80% (e tloaelehileng ≥40 MPa bakeng sa PVC e thata).
- Bakeng sa ho feto-fetoha ha maemo (PVC e feto-fetohang), nkela DOP sebaka ka oli ea soya ea epoxidized ea 8% (plasticizer e habeli / lelakabe la mollo).
III. Melemo ea Teko le netefatso
Ho Tateha ha Lelakabe:
- UL94 V0 (1.6 mm botenya)
- Lethathamo la Oxygen Index (LOI) ≥32%
Taolo ea Mosi:
- Teko ea kamore ea mosi ea NBS: Boima bo boholo bo ikhethang ba optical densityDs≤150 (mokhoa o tukang)
Thepa ea Mechini:
- Matla a tsitsitseng ≥35 MPa (a thata), elongation nakong ea khefu ≥200% (ea fetohang)
Thermal Stability:
- DMA e tiisa hore ha ho na modulus ea theoha ka 180 ° C.
IV. Litsenyehelo le Liphetoho tse Sebeletsang Eco
Mokhoa o Mong oa Litšenyehelo tse Tlase:
- Fokotsa zinc molybdate ho 3%, sebaka sa Al(OH) ₃ ka karolo ea Mg(OH) ₂ (eketseha ho 15%).
Tharollo ea Mahala ea Antimony:
- Tlosa Sb₂O₃, sebelisa 2% aluminium diethylphosphinate + 5% nano-kaolin (bokhoni bo fokolang bo fokolang; e hloka botenya ba 3 mm bakeng sa V0).
Mosi oa Bohlokoa:
- Eketsa 1% ea silicone e koahetsoeng ka carbon e ntšo ho fokotsa sekhahla sa mosi ka 15%.
V. Tataiso ea Ts'ebetso
- Ho Kopanya Tatelano:
PVC resin → stabilizer + lubricant → retardants ea malakabe (tlase ho ea holimo) → plasticizer (spray-eketsoe ho qetela). - Lithempereichara tsa ho sebetsa:
Twin-screw extruder libaka: 160 ° C (ho fepa) → 170 ° C (ho qhibiliha) → 180 ° C (ho kopanya) → 175 ° C (shoa hlooho). - Masterbatch Concentration:
Khothalletsa 50% loading; hlapolla 1: 1 ka PVC ea moroetsana bakeng sa ho etsa ente ea ho qetela.
Sebopeho sena se leka-lekanya ho lieha ho hoholo ha lelakabe, mosi o tlase, le botsitso ba ts'ebetso. Liteko tse nyane li eletsoa pele li phahamisa, ka litokiso tse thehiloeng ho foromo ea sehlahisoa (maqephe, likhoele, joalo-joalo).
More info., pls contact lucy@taifeng-fr.com
Nako ea poso: Jul-08-2025
