Cov Qauv Siv Rau V-0 Flame-Retardant PVC Thermoplastic Plastics
Yuav kom ua tiav qhov ntsuas hluav taws kub V-0 (raws li UL-94 tus qauv) hauv PVC thermoplastic plastics, txhuas hypophosphite thiab boric acid yog ob qho tshuaj tua hluav taws kub uas siv ntau. Lawv cov qib ntxiv yuav tsum tau ua kom zoo dua raws li cov qauv tshwj xeeb, cov xwm txheej ua tiav, thiab cov kev cai ua tau zoo. Hauv qab no yog qee cov lus qhia thiab cov qib siv:
1. Qib Ntxiv ntawm Aluminium Hypophosphite
Aluminium hypophosphite yog ib qho tshuaj tua hluav taws uas muaj phosphorus zoo thiab tsim nyog rau cov khoom siv PVC. Nws tiv thaiv kev kub hnyiab los ntawm kev tsim ib txheej phosphate tiv thaiv thiab tso cov pa phosphoric acid.
- Qib ntxiv uas pom zoo: 15–25 teev(qhov chaw ib puas qhov ntawm cov resin)
- Rau tus qauv PVC, ntxiv ib ncig20 phrntawm txhuas hypophosphite feem ntau ua tiav qhov ntsuas hluav taws kub V-0.
- Yog tias muaj hluav taws kub ntau dua, cov tshuaj no yuav tsum tau nce ntxiv, tab sis yuav tsum xav txog qhov cuam tshuam rau cov khoom siv kho tshuab.
- Cov kev ceev faj:
- Kev siv aluminium hypophosphite ntau dhau yuav ua rau kev ua haujlwm tsis zoo (piv txwv li, kev ntws tsis zoo).
- Nws raug pom zoo kom sib xyaw nrog lwm cov tshuaj tua hluav taws (piv txwv li, boric acid, aluminium hydroxide) rau cov teebmeem synergistic.
2. Qib Ntxiv ntawm Boric Acid
Boric acid yog ib qho tshuaj tua hluav taws uas pheej yig thiab ua haujlwm feem ntau los ntawm kev rhuav tshem cov khoom siv endothermic thiab tsim cov txheej tiv thaiv zoo li iav.
- Qib ntxiv uas pom zoo: 5–15 teev
- Feem ntau Boric acid yog siv los ua ib qho tshuaj tiv thaiv hluav taws thib ob, thiab ntau dhau yuav ua rau puas tsuaj rau cov khoom siv kho tshuab thiab cov khoom ua haujlwm.
- Hauv PVC, ntxiv ib ncig10 phrntawm boric acid tuaj yeem ua ke nrog txhuas hypophosphite los txhim kho nplaim taws retardancy.
- Cov kev ceev faj:
- Boric acid yog hygroscopic, yog li khaws cia thiab tuav yuav tsum tsis txhob nqus dej noo.
- Nws cov nyhuv tiv thaiv hluav taws tsuas yog txwv thaum siv ib leeg xwb; nws feem ntau yog ua ke nrog lwm cov tshuaj tiv thaiv hluav taws (piv txwv li, txhuas hypophosphite, txhuas hydroxide).
3. Kev Tsim Khoom Sib Koom Tes ntawm Aluminium Hypophosphite thiab Boric Acid
Yuav kom ua tiav qhov ntsuas V-0, txhuas hypophosphite thiab boric acid tuaj yeem ua ke rau cov teebmeem synergistic. Hauv qab no yog cov qauv siv los siv:
- Aluminium hypophosphate: 15–20 teev
- Boric acid: 5–10 phr
- Lwm cov khoom ntxiv:
- Cov tshuaj yas (piv txwv li, DOP): Raws li qhov xav tau (hloov kho raws li qhov yuav tsum tau ua ntawm PVC)
- Khoom ruaj khov:2–5 phr(piv txwv li, cov ntsev txhuas, cov tshuaj calcium-zinc stabilizers)
- Cov roj nplua nyeem:0.5–1 phr(piv txwv li, stearic acid)
Piv txwv kev tsim qauv:
- PVC cob:100 phr
- Aluminium hypophosphate:18 teev sawv ntxov
- Zinc borate:8 phr
- Cov khoom siv yas (DOP):40 phr
- Khoom ruaj khov:3 phr
- Cov roj nplua nyeem:0.8 phr
4. Kev Ntsuas thiab Kev Txhim Kho
Hauv kev siv ua haujlwm, cov kauj ruam hauv qab no raug pom zoo rau kev sim thiab kev ua kom zoo dua:
- Cov qauv tsim qauv:Npaj ib qho kev sim me me raws li cov qib siv los ua piv txwv.
- Kev xeem UL-94:Ua qhov kev ntsuam xyuas kev hlawv ntsug kom ntsuas qhov ntsuas hluav taws tsis kam.
- Kev ntsuam xyuas kev ua tau zoo:Soj ntsuam cov khoom siv kho tshuab (piv txwv li, lub zog tensile, lub zog cuam tshuam) thiab kev ua haujlwm zoo (piv txwv li, kev ntws tau, kev ruaj khov thermal).
- Kev Txhim Kho Kom Zoo:Kho cov qib ntxiv ntawm txhuas hypophosphite thiab boric acid lossis ntxiv lwm cov tshuaj tiv thaiv hluav taws (piv txwv li, txhuas hydroxide, antimony trioxide) kom txhim kho kev ua haujlwm ntxiv.
5. Cov Lus Qhia Tseem Ceeb
- Kub ua tiav:Qhov kub ntawm kev lwj ntawm txhuas hypophosphite thiab boric acid yog qhov siab heev; xyuas kom meej tias qhov kub ntawm kev ua cov khoom tsis tshaj qhov txwv no kom tsis txhob lwj.
- Kev tawg tawm:Xyuas kom meej tias cov tshuaj tua hluav taws sib xyaw ua ke hauv PVC kom tiv thaiv cov teeb meem kev sib sau ua ke hauv zos.
- Kev cuam tshuam rau ib puag ncig:Ob qho tib si txhuas hypophosphite thiab boric acid yog cov tshuaj tua hluav taws uas zoo rau ib puag ncig, tab sis kev sib raug zoo nrog lwm cov khoom ntxiv yuav tsum tau txheeb xyuas.
6. Xaus Lus
Yuav kom ua tiav qhov ntsuas hluav taws kub V-0 hauv PVC thermoplastic plastics, cov qib ntxiv uas pom zoo yog15–25 phr rau txhuas hypophosphitethiab5–15 phr rau boric acidKev siv cov tshuaj tua hluav taws no ua ke tuaj yeem ua rau kev ua tau zoo dua. Hauv kev xyaum, kev ua kom zoo dua raws li cov qauv tshwj xeeb thiab cov kev cai ua tau zoo yog qhov tseem ceeb, thiab kev sim UL-94 yuav tsum tau ua kom paub tseeb tias qhov ntsuas hluav taws kub.
More info. , pls contact lucy@taifeng-fr.com
Lub sijhawm tshaj tawm: Lub Rau Hli-23-2025
