Qaabaynta Tixraaca Ololka Masterbatch ee PVC
Naqshadeynta iyo tayaynta qaababka dib-u-dejinta ololka PVC, oo lagu daro dab-celiyayaasha hadda jira iyo qaybaha muhiimka ah ee is-dhexgalka, ee lagu beegsanayo dib-u-dhaca ololka UL94 V0 (la hagaajin karo V2 iyadoo la dhimayo qaddarka wax lagu daro).
I. Talo bixinta Foomamka Saldhigga (PVC adag)
Samaynta Ololka Caaga ah:
| Qayb | Soodejinaya (wt%) | Sharaxaada Shaqada |
|---|---|---|
| Xabagta PVC (nooca SG-5) | 40-50% | Qalabka Matrix, gaar ahaan heerka nuugista saliidda oo hooseeya |
| Aluminium hypophosphite | 12-15% | Ilaha aysiidhka ee samaynta char, waxa ay xakamaysaa dhalaalka ka dib |
| Zinc borate | 8-10% | Xakamaynta qiiqa isku-dhafka ah, waxay la falgashaa HCl oo ka soo baxa burburka PVC |
| Aluminium hydroxide oo dusha sare laga beddelay | 10-12% | Qaboojinta Endothermic, waxay u baahan tahay daahan wakiilka isku xidhka silane (kulka burburka. oo u dhigma habka PVC) |
| Antimony trioxide (Sb₂O₃) | 3-5% | Isku-dubbaridka asaasiga ah, wuxuu wanaajiyaa dib u dhaca ololka isagoo adeegsanaya isku-dhafka Cl-Sb |
| Zinc molybdate (xakamaynta qiiqa) | 5-8% | Waxyaabaha lagu daro ee lagu taliyay, waxay yaraynaysaa cufnaanta qiiqa (furaha u hogaansanaanta DIN 4102) |
| Dipentaerythritol (DPE) | 2-3% | Gargaarka samaynta char, waxay wanaajisaa xakamaynta dhalaalka |
| Dejinta kulaylka (Ca-Zn composite) | 3-4% | Muhiim u ah ka hortagga xaalufka kulaylka inta lagu jiro habaynta |
| Plasticizer (DOP ama beddelka deegaanka) | 0-8% | Ku hagaaji adkaanta (ikhtiyaarka PVC adag) |
| Saliid (kalsiyum stearate) | 1-1.5% | Waxay wanaajisaa habsocodka, waxay ka hortagtaa rullaluistu-ku dhegga |
| Kaalmada habaynta (ACR) | 1-2% | Waxay xoojisaa caag-samaynta iyo fidinta masterbatch |
II. Mabaadi'da Hagaajinta Furaha
- Nidaamka Isku-dhafka Ololka
- Isku-dhafka Cl-Sb: koloriinta dabiiciga ah ee PVC (56%) oo ay weheliso 3-5% Sb₂O₃ waxay samaysaa xannibaad SbCl₃ ah, taasoo awood u siinaysa dib-u-dhac ololka-waji-gaas/waji shuban ah.
- Xakamaynta qiiqa: Zinc molybdate + borate zinc waxay yaraynaysaa cufnaanta qiiqa> 40% (ASTM E662).
- Kobcinta Char: Aluminium hypophosphite + DPE waxay abuurtaa char phosphoric ester-ka ah oo isku-dhaf ah 200-250°C, taasoo magdhow u ah yaraanta dabka ee PVC ee heerka hore.
- Habaynta La qabsiga
- Heerkulka Heerkulka: Aluminium hypophosphite (burbur ≥250 ° C) iyo dusha sare ee Al (OH) ₃ (joogsan> 200 ° C) oo ku habboon farsamaynta PVC (160-190 ° C).
- Xaqiijinta Xasiloonida: Xasijiyeyaasha Ca-Zn waxay ka hortagaan xaalufinta resin ee sii deynta HCl; ACR waxay caawisaa ku dhejinta hababka buuxinta sare.
- Dheelitirnaanta Waxqabadka
- Isku geynta dabka dib u dhigista: 35-45%, xajinta xoogga xajinta ≥80% (sida caadiga ah ≥40 MPa ee PVC adag).
- Dabacsanaanta (PVC dabacsan), ku beddel DOP 8% saliid soybean ah oo epoxidized ah (laba balaastiig ah/dabcelis olol ah).
III. Tijaabada & Qiyaasaha Xaqiijinta
Dib u Dhigista Ololka:
- UL94 V0 (qarmucdiisuna tahay 1.6 mm)
- Xaddidaadda Ogsajiinta Tusaha (LOI) ≥32%
Xakamaynta qiiqa:
- Imtixaanka qolka qiiqa ee NBS: Cufnaanta indhaha ee ugu badan ee gaarka ahDs≤150 (Qaabka ololaya)
Guryaha Makaanikada:
- Xoog xajin ≥35 MPa (adag), elongation at nasasho ≥200% (dabacsan)
Deganaanshaha kulaylka:
- DMA waxay xaqiijisaa inuusan jirin hoos u dhac ku yimaada 180°C.
IV. Kharashka & Hagaajinta Eco-Saaxiibtinimo
Beddelka Qiimaha Yar:
- Ka yaree zinc molybdate ilaa 3%, qayb ahaan ku beddel Al(OH)₃ Mg(OH)₂ (kordhay ilaa 15%).
Xalka Antimony-free:
- Ka saar Sb₂O₃, isticmaal 2% aluminium diethylphosphinate + 5% nano-kaolin (waxtar yar oo hooseeya; waxay u baahan tahay dhumuc 3 mm V0).
Mudnaanta qiiqa:
- Ku dar 1% kaarboon madow oo dahaarka leh oo silikoon ah si aad u yareyso cufnaanta qiiqa 15%.
V. Habraaca Habraaca
- Isku dhafka isku dhafka:
Xabagta PVC → xasiliyaha + saliidaha → dab-celiyayaasha ololka (cufnaanta hoose ilaa sare) → caagadeeyaha (buufin lagu daray ugu dambeyntii). - Habaynta Heerkulka:
Aagagga labajibbaaran ee mataanaha ah: 160°C (quudinta) → 170°C (dhalaalaya) → 180°C (isku-darka) → 175°C (madaxa dhintay). - Diirada Masterbatch:
Ku talin 50% rarida; ku milmi 1:1 oo leh PVC bikrad ah oo loogu talagalay qaabeynta duritaanka isticmaalka dhamaadka.
Habkani waxa uu dheellitirayaa dib u dhacyada holac sare, qiiq yar, iyo xasiloonida habaynta. Tijaabooyin yar-yar ayaa lagula talinayaa ka hor inta aan la is-millimin, iyadoo la hagaajinayo iyadoo lagu saleynayo qaabka badeecada ( xaashida, fiilooyinka, iwm.).
More info., pls contact lucy@taifeng-fr.com
Waqtiga boostada: Jul-08-2025
