Ko te Hanganga Tohutoro Tohutoro Tohutoro a PVC Flame Retardant Masterbatch
Hoahoa me te arotautanga o nga hangai a te PVC muramura masterbatch, ko te whakauru i nga whakamaarama mura o mua me nga waahanga whakahiato matua, e aro ana ki te UL94 V0 te mura o te mura (ka taea te whakarite ki te V2 ma te whakaiti i nga moni taapiri).
I. Tohutohu Tātai Turanga (PVC mārō)
Te Hanganga Whakamuri Mura Kirihou:
| Waehanga | Uta ana (wt%) | Whakaahuatanga Mahi |
|---|---|---|
| PVC kapia (momo SG-5) | 40-50% | He rauemi matrix, he pai ake te iti o te whakauru hinu |
| Konumohe hypophosphite | 12-15% | Ko te puna waikawa mo te hanga waro, ka pehi i te mura o muri |
| Zinc borate | 8-10% | Ko te whakakore i te auahi, ka tauhohe ki te HCl mai i te pirau PVC |
| Waiwai konumohe kua whakarerekehia te mata | 10-12% | Ko te whakamahana endothermic, me whakakikoruatia te maatete honohono silane (te maamahana whakangao. ka rite ki te tukatuka PVC) |
| Antimony trioxide (Sb₂O₃) | 3-5% | Ko te kaitoi matua, ka whakanui i te mura o te mura ma te mahi tahi a Cl-Sb |
| Konutea molybdate (te pehi auahi) | 5-8% | Ko nga taapiri e manakohia ana, ka whakaheke i te kiato auahi (matua mo te DIN 4102 hanganga ture) |
| Dipentaerythritol (DPE) | 2-3% | He awhina hanga-char, he pai ake te whakahaere rewa-tete |
| Pūmau wera (Ca-Zn composite) | 3-4% | He mea nui hei aukati i te paheketanga o te waiariki i te wa e tukatuka ana |
| Plasticizer (DOP, taiao-rereke ranei) | 0-8% | Whakaritea mo te pakeke (mehemea mo te PVC maro) |
| Whakahinuhinu (konupora stearate) | 1-1.5% | Ka pai ake te mahi, ka aukati i te piri o te roera |
| Tukatuka awhina (ACR) | 1-2% | Ka whakarei ake i te plastification me te marara masterbatch |
II. Nga Tikanga Arotautanga Matua
- Pūnaha Synergy Retardant Flame
- Cl-Sb Synergy: Ko te maota o te PVC (56%) kua honoa ki te 3-5% Sb₂O₃ ka hanga he arai SbCl₃, ka taea te hau-waa-waa-waa-waa-rua-mahi-rua te mura o te mura.
- Te Paoa Paoa: Zinc molybdate + zinc borate ka whakaiti i te kiato auahi e>40% (ASTM E662).
- Whakanuia Char: Ko te konumohe hypophosphite + DPE e whakaputa ana i te waro ester phosphoric ester i te 200–250°C, hei utu mo te korenga o te waro moata o te PVC.
- Tukatuka Urutaunga
- Te Whakataurite Te Maamaa: Ko te Aluminium hypophosphite (decomposition ≥250 ° C) me te Al (OH) ₃ kua whakarerekehia te mata (te pumau ki te> 200 ° C) e pai ana ki te tukatuka PVC (160-190 ° C).
- Te Whakaaetanga Whakapumautanga: Ko nga kaiwhakamau Ca-Zn te aukati i te paheketanga o te kapia mai i te tuku HCl; Ka awhina a ACR ki te whakakii i nga punaha whakakii-nui.
- Taurite Mahinga
- Ko te katoa o te utaina mo te mura: 35–45%, te pupuri kaha tensile ≥80% (te tikanga ≥40 MPa mo te PVC pakari).
- Mo te ngawari (PVC ngawari), whakakapia te DOP ki te 8% te hinu soypi kua whakahaeraehia (te whakahiato takirua/whakaweti mura).
III. Whakamatau me te Inenga Whakamana
Te mura o te mura:
- UL94 V0 (1.6 mm te matotoru)
- Te Whakawhāiti i te Taupū hāora (LOI) ≥32%
Mana auahi:
- Whakamātautau ruma auahi NBS: Kiato whatu motuhake mōrahiDs≤150 (aratau mura)
Ngā Āhuatanga Hangarau:
- Te kaha tensile ≥35 MPa (mārō), te whakaroa i te wehenga ≥200% (ngawari)
Pūmautanga Weariki:
- Ka whakamanahia e DMA karekau he hekenga modulus i te 180°C.
IV. Te Utu me te Whakaritenga Pai-Rau
He Utu Utu Atu:
- Whakaitihia te konutea molybdate ki te 3%, whakakapia te Al(OH)₃ ki te Mg(OH)₂ (whakanuia ki te 15%).
Otinga Antimony-Free:
- Tangohia te Sb₂O₃, whakamahia te 2% konumohe diethylphosphinate + 5% nano-kaolin (he iti ake te pai; me 3 mm te matotoru mo V0).
Te Matua Paoa:
- Taapirihia te 1% waro pango kua whakakikoruatia ki te kapia silicone hei whakaiti ake i te kiato auahi ma te 15%.
V. Nga Aratohu Tukatuka
- Raupapa Whakaranu:
PVC resin → pūmau + whakahinuhinu → mura ahi (iti ki te teitei kiato) → plasticizer (rehu-tāpiri whakamutunga). - Tukatuka Pawera:
Nga rohe whakakorikori takirua: 160°C (whangai) → 170°C (whakarewa) → 180°C (whakaranu) → 175°C (upoko mate). - Kohanga Matua:
Tūtohu 50% uta; waimeha 1:1 ki te PVC wahine mo te whakarewanga werohanga mutunga-whakamahi.
Ko tenei hangahanga ka whakataurite i te mura o te mura, te auahi iti, me te pumau o te tukatuka. Ka tohutohuhia nga whakamatautau iti i mua i te whakamaarama, me nga whakarereketanga i runga i te ahua hua (pepa, taura, aha atu).
More info., pls contact lucy@taifeng-fr.com
Wā tuku: Hūrae-08-2025
