Daim Ntawv Qhia Txog V-0 Nplaim-Retardant PVC Thermoplastic Plastics

Daim Ntawv Qhia Txog V-0 Nplaim-Retardant PVC Thermoplastic Plastics

Txhawm rau ua tiav qhov ntsuas hluav taws xob V-0 (raws li UL-94 tus qauv) hauv PVC thermoplastic plastics, aluminium hypophosphite thiab boric acid yog ob feem ntau siv cov nplaim hluav taws. Lawv cov qib ntxiv yuav tsum tau ua kom zoo raws li kev tsim tshwj xeeb, kev ua haujlwm, thiab kev ua haujlwm tau zoo. Hauv qab no yog qee cov lus pom zoo thiab siv ntau yam:

1. Ntxiv Qib ntawm Aluminium Hypophosphite

Aluminium hypophosphite yog ib qho phosphorus-raws li nplaim retardant haum rau PVC cov ntaub ntawv. Nws inhibits combustion los ntawm kev tsim cov phosphate tiv thaiv txheej thiab tso phosphoric acid gas.

• Pom zoo qib ntxiv: 15-25 hnub(ib feem pua ​​ntawm cov resin)
• Rau txheem PVC, ntxiv ib ncig20 phrntawm aluminium hypophosphite feem ntau ua tiav V-0 nplaim retardancy ntsuas.
• Rau cov nplaim hluav taws ntau dua, qhov ntau npaum li cas tuaj yeem nce ntxiv, tab sis qhov cuam tshuam rau cov khoom siv kho tshuab yuav tsum raug txiav txim siab.
• Cov kev ceev faj:
• Ntau dhau ntawm aluminium hypophosphite tuaj yeem txo cov kev ua tau zoo (piv txwv li, tsis muaj dej txaus).
• Nws raug pom zoo kom ua ke nrog lwm cov nplaim hluav taws (xws li boric acid, aluminium hydroxide) rau kev sib koom ua ke.

2. Qib Ntxiv ntawm Boric Acid

Boric acid yog cov nplaim hluav taws kub qis uas ua haujlwm feem ntau los ntawm kev ua kom sov thiab tsim cov iav zoo li txheej tiv thaiv.

• Pom zoo qib ntxiv: 5-15 hnub
• Boric acid feem ntau yog siv los ua cov nplaim hluav taws kub, thiab cov nyiaj ntau dhau tuaj yeem ua rau cov khoom siv thiab ua haujlwm.
• Hauv PVC, ntxiv ib ncig10 phrboric acid tuaj yeem ua ke nrog aluminium hypophosphite los txhim kho cov nplaim hluav taws.
• Cov kev ceev faj:
• Boric acid yog hygroscopic, yog li khaws cia thiab tuav yuav tsum tsis txhob nqus dej.
• Nws cov nplaim-retardant nyhuv yog txwv thaum siv ib leeg; nws feem ntau ua ke nrog lwm cov nplaim hluav taws (xws li, aluminium hypophosphite, aluminium hydroxide).

3. Synergistic Formulation ntawm Aluminium Hypophosphite thiab Boric Acid

Txhawm rau ua tiav qhov ntsuas V-0, aluminium hypophosphite thiab boric acid tuaj yeem ua ke rau kev sib koom ua ke. Hauv qab no yog ib daim ntawv qhia siv:

• Aluminium hypophosphite: 15–20 dr hab
• Boric acid: 5–10 dr hab
• Lwm yam additives:
• Plasticizer (piv txwv li, DOP): Raws li xav tau (hloov raws li PVC hardness yuav tsum tau)
• Stabilizer:2–5 dr hab(piv txwv li, lead ntsev, calcium-zinc stabilizers)
• Lubricant:0.5-1.0 Nws(piv txwv li, stearic acid)

Piv txwv Formulation:

• PVC cob:100 phr
• Aluminium hypophosphite:18 phr
• Zinc borate:8 phr
• Plasticizer (DOP):40 phn
• Stabilizer:3 phr
• Lubricant:0, 8 phn

4. Kev sim thiab kev ua kom zoo

Hauv kev siv tswv yim, cov kauj ruam hauv qab no raug pom zoo rau kev sim thiab ua kom zoo dua:

1. Pilot formulation:Npaj ib qho kev sim me me raws li kev siv ntau yam.
2. UL-94 xeem:Ua qhov ntsuas hluav taws xob ntsug los ntsuas qhov ntsuas hluav taws xob retardancy.
3. Kev ntsuas kev ua tau zoo:Ntsuas cov khoom siv kho tshuab (piv txwv li, lub zog tensile, cuam tshuam lub zog) thiab kev ua haujlwm (xws li, flowability, thermal stability).
4. Optimization:Kho cov qib ntxiv ntawm aluminium hypophosphite thiab boric acid los yog qhia lwm cov nplaim hluav taws (xws li, aluminium hydroxide, antimony trioxide) txhawm rau txhim kho kev ua tau zoo.

5. Cov ntsiab lus tseem ceeb

• Ua haujlwm kub:Lub decomposition kub ntawm aluminium hypophosphite thiab boric acid yog qhov siab; xyuas kom cov txheej txheem kub tsis tshaj cov kev txwv no kom tsis txhob degradation.
• Dispersion:Xyuas kom meej qhov sib txawv ntawm cov nplaim hluav taws kub nyhiab hauv PVC los tiv thaiv cov teeb meem hauv cheeb tsam.
• Environmental cuam tshuam:Ob qho txhuas hypophosphite thiab boric acid yog eco-phooj ywg nplaim retardants, tab sis compatibility nrog rau lwm yam additives yuav tsum tau xyuas.

6. Cov lus xaus

Txhawm rau ua tiav qhov ntsuas hluav taws xob V-0 hauv PVC thermoplastic plastics, cov qib pom zoo ntxiv yog15-25 phr rau aluminium hypophosphitethiab5-15 phr rau boric acid. Synergistic siv cov nplaim retardants tuaj yeem txhim kho kev ua haujlwm. Hauv kev xyaum, kev ua kom zoo raws li cov qauv tsim tshwj xeeb thiab kev ua tau zoo yog qhov tseem ceeb, thiab UL-94 kev sim yuav tsum tau ua los xyuas qhov ntsuas nplaim taws.

More info. , pls contact lucy@taifeng-fr.com