Te Hanganga Tohutoro Masterbatch Ārai Mura PVC
Te hoahoa me te arotau i ngā whakatakotoranga masterbatch aukati mura PVC, me te whakauru i ngā aukati mura o nāianei me ngā wāhanga matua e mahi tahi ana, me te aro ki te aukati mura UL94 V0 (ka taea te whakarerekē ki te V2 mā te whakaiti i ngā rahinga tāpiri).
I. Taunakitanga Tātai Tūāpapa (PVC Pakari)
Te Hanganga Ārai Mura Kirihou:
| Wāhanga | Utaina (wt%) | Whakaahuatanga Mahi |
|---|---|---|
| Kapia PVC (momo SG-5) | 40-50% | Rauemi matihiko, he pai ake te iti o te mimiti hinu |
| Konumohe hypophosphate | 12-15% | He pūtake waikawa mō te hanganga waro, e pehi ana i te mura o muri mai |
| Konutea borate | 8-10% | Te pehi paoa mahi tahi, te tauhohe ki te HCl mai i te pirau PVC |
| Waikawa konumohe kua whakarerekētia te mata | 10-12% | Te whakamatao endothermic, me pania te kaihoko hononga silane (ka rite te pāmahana pirau ki te tukatuka PVC) |
| Te toruwaikura ā-antimoni (Sb₂O₃) | 3-5% | Kaitatau mahi tahi matua, ka whakarei ake i te ātete mura mā te mahi tahi Cl-Sb |
| Konutea molybdate (whakakore paowa) | 5-8% | Tāpiringa e taunakitia ana, e whakaiti ana i te matotoru o te paowa (he mea nui mō te tutuki i ngā whakaritenga DIN 4102) |
| Dipentaerythritol (DPE) | 2-3% | Āwhina hanga waro, whakapai ake i te whakahaere rewa-maturuturu |
| Pūmau wera (whakakotahitanga Ca-Zn) | 3-4% | He mea nui hei ārai i te pirau wera i te wā e tukatuka ana |
| Kaiwhakaahua kirihou (DOP, whakakapinga taiao rānei) | 0-8% | Whakatikatikahia kia pakari (he kōwhiringa mō te PVC mārō) |
| Kaiwhakahinuhinu (konupūmā stearate) | 1-1.5% | Ka whakapai ake i te ngāwari o te tukatuka, ka ārai i te piri o te roera |
| Āwhina tukatuka (ACR) | 1-2% | Whakarei ake i te whakapūmautanga me te horapa o te masterbatch |
II. Ngā Mātāpono Matua mō te Arotautanga
- Pūnaha Mahi Ārai Mura
- Te Mahi Tahi Cl-Sb: Ko te chlorine ā-roto o te PVC (56%) i honoa ki te 3-5% Sb₂O₃ ka hanga he ārai SbCl₃, e āhei ai te ātete mura mahi-rua ā-hau/ā-wāhanga-whakamātautau.
- Te Pehi i te Auahi: Ka whakaitihia e te konutea molybdate + konutea borate te matotoru o te auahi mā te >40% (ASTM E662).
- Whakarei ake i te ngao: Ka whakaputahia e te konumohe hypophosphite + DPE te ngao ester phosphoric hono-whiti i te 200–250°C, hei whakaea i te ngoikore o te ngao o te PVC i te tīmatanga.
- Te Urutau Tukatuka
- Te Whakataurite i te Mahana: Ko te hypophosphite konumohe (te pirau ≥250°C) me te Al(OH)₃ kua whakarerekētia te mata (pūmau ki te >200°C) e pai ana mō te tukatuka PVC (160–190°C).
- Whakapūmautanga Pūmautanga: Ka ārai ngā whakapūmau Ca-Zn i te pirau o te kapia mai i te tukunga HCl; Ka āwhina te ACR i te whakapūmautanga i roto i ngā pūnaha whakakī-nui.
- Taurite Mahi
- Te tapeke o te kawenga ātete mura: 35–45%, te pupuri kaha kume ≥80% (te tikanga ≥40 MPa mō te PVC mārō).
- Mō te ngāwari (PVC ngāwari), whakakapia te DOP ki te hinu pīni soya 8% epoxidized (he mea hanga kirihou takirua/ātete mura).
III. Ngā Inenga Whakamātautau me te Whakamana
Ātete ki te mura:
- UL94 V0 (1.6 mm te matotoru)
- Te Taupū Hāora Whakawhāiti (LOI) ≥32%
Te Whakahaere Auahi:
- Whakamātautau rūma paowa NBS: Te mātotoru whatu motuhake mōrahiDs≤150 (aratau mura)
Ngā Āhuatanga Ā-ringa:
- Kaha kume ≥35 MPa (pakari), roa i te whati ≥200% (ngāwari)
Te Pūmautanga o te Wera:
- E whakaū ana te DMA kāore he hekenga o te modulus i te 180°C.
IV. Ngā Whakarerekētanga Utu me te Taiao
He Huarahi Whakakapinga Utu-iti:
- Whakaitihia te konutea molybdate ki te 3%, whakakapia te Al(OH)₃ ki tētahi wāhanga o te Mg(OH)₂ (whakapikihia ki te 15%).
Otinga Kore-Antimony:
- Tangohia te Sb₂O₃, whakamahia te 2% konumohe diethylphosphinate + 5% nano-kaolin (he iti ake te pai o te mahi; me 3 mm te matotoru mō te V0).
Te Kaupapa Matua mō te Auahi:
- Tāpirihia he 1% pango waro kua pania ki te kapia silicone hei whakaiti i te matotoru o te paowa mā te 15%.
V. Ngā Aratohu Tukatuka
- Te Whakaranu Raupapa:
Kapia PVC → whakaū + hinu whakahinuhinu → ārai mura (iti ki te matotoru nui) → whakapūmau kirihou (ko te rehu te mea whakamutunga). - Ngā Pāmahana Tukatuka:
Ngā rohe whakaputa tīwiri-rua: 160°C (whāngai) → 170°C (rewa) → 180°C (whakaranu) → 175°C (upoko mate). - Te Kukū o te Masterbatch:
E taunakihia ana kia 50% te uta; whakaranua 1:1 ki te PVC tauhou mō te hanga werohanga mō te whakamahinga whakamutunga.
Ka whakatauritehia e tēnei whakatakotoranga te ātete mura nui, te iti o te paoa, me te pumau tukatuka. E taunakihia ana kia whakamātauria ngā whakamātautau iti i mua i te whakapūtātanga, me ngā whakarerekētanga i runga i te āhua o te hua (ngā rau, ngā taura, me ētahi atu).
More info., pls contact lucy@taifeng-fr.com
Wā tuku: Hōngongoi-08-2025
