Cov Tshuaj Tiv Thaiv Hluav Taws Xob Uas Tsis Muaj Halogen Rau TPU Txheej Txheem Siv DMF Solvent

Cov Tshuaj Tiv Thaiv Hluav Taws Xob Uas Tsis Muaj Halogen Rau TPU Txheej Txheem Siv DMF Solvent

Rau cov txheej txheem TPU txheej siv Dimethyl Formamide (DMF) ua cov kuab tshuaj, kev siv txhuas hypophosphite (AHP) thiab zinc borate (ZB) ua cov nplaim taws retardants xav tau kev ntsuam xyuas tsis tu ncua. Hauv qab no yog kev tshuaj xyuas ntxaws thiab kev npaj siv:

I. Kev Tshawb Fawb Txog Kev Ua Tau ntawm Aluminium Hypophosphite (AHP)

1. Cov Txheej Txheem Tiv Thaiv Hluav Taws Kub thiab Cov Txiaj Ntsig

• Lub Tshuab:
• Nws lwj thaum kub siab los tsim cov phosphoric thiab metaphosphoric acids, txhawb kev tsim cov char hauv TPU (condensed-phase flame retardancy).
• Tso tawm cov PO· radicals los cuam tshuam cov kev sib txuas ntawm cov hluav taws kub (gas-phase flame retardancy).
• Cov txiaj ntsig:
• Tsis muaj halogen, pa luam yeeb tsawg, tsis muaj tshuaj lom, ua raws li RoHS / REACH.
• Kev ruaj khov thermal zoo (qhov kub ntawm qhov lwj ≈300 ° C), tsim nyog rau cov txheej txheem ziab TPU (feem ntau <150 ° C).

2. Cov Kev Sib Tw thiab Kev Dais Teeb Meem ntawm Daim Ntawv Thov

3. Cov Qauv thiab Cov Txheej Txheem Pom Zoo

• Piv txwv kev tsim qauv:
• TPU/DMF puag: 100 phr
• AHP hloov kho saum npoo av: 20 phr
• Zinc borate (ZB): 5 phr (kev sib koom ua ke ntawm kev tswj pa luam yeeb)
• Cov tshuaj yaj tawm (BYK-110): 1.5 phr
• Cov Ntsiab Lus Tseem Ceeb ntawm Cov Txheej Txheem:
• Ua ntej sib tov AHP nrog cov tshuaj dispersant thiab ib nrab DMF hauv qab high shear (≥3000 rpm, 30 feeb), tom qab ntawd sib tov nrog TPU slurry.
• Kev ziab tom qab txheej: 120-150 ° C, ntev lub sijhawm los ntawm 10% kom ntseeg tau tias DMF evaporation tiav.

II. Kev Tshawb Fawb Txog Kev Ua Tau ntawm Zinc Borate (ZB)

1. Cov Txheej Txheem Tiv Thaiv Hluav Taws Kub thiab Cov Txiaj Ntsig

• Lub Tshuab:
• Tsim ib txheej iav B₂O₃ thaum kub siab, thaiv cov pa oxygen thiab cua sov (condensed-phase flame retardancy).
• Tso tawm cov dej khi (~ 13%), ua kom cov pa roj uas yooj yim hlawv thiab ua kom lub kaw lus txias.
• Cov txiaj ntsig:
• Muaj zog synergistic nyhuv nrog AHP lossis txhuas trihydroxide (ATH).
• Kev tswj pa luam yeeb zoo heev, zoo tagnrho rau cov ntawv thov uas muaj pa luam yeeb tsawg.

2. Cov Kev Sib Tw thiab Kev Dais Teeb Meem ntawm Daim Ntawv Thov

3. Cov Qauv thiab Cov Txheej Txheem Pom Zoo

• Piv txwv kev tsim qauv:
• TPU/DMF puag: 100 phr
• ZB me me li Nano: 8 phr
• AHP: 15 phr
• Wetting agent (Tego 750W): 1 phr
• Cov Ntsiab Lus Tseem Ceeb ntawm Cov Txheej Txheem:
• Ua ntej-disperse ZB hauv DMF ntawm kev milling hlaws (qhov loj me ≤2μm) ua ntej sib tov nrog TPU slurry.
• Ntev lub sijhawm ziab (piv txwv li, 30 feeb) kom tsis txhob muaj cov dej noo seem uas cuam tshuam rau kev ua kom nplaim taws tsis kub.

III. Kev Ntsuam Xyuas Kev Sib Koom Tes ntawm AHP + ZB System

1. Cov Teeb Meem Hluav Taws Xob Synergistic

• Kev Sib Koom Tes ntawm Theem Gas & Theem Condensed:
• AHP muab phosphorus rau kev hlawv, thaum ZB ua kom cov txheej char ruaj khov thiab tiv thaiv cov teeb ci ntsa iab.
• LOI ua ke: 28-30%, UL94 V-0 (1.6mm) ua tau.
• Kev Tswj Pa Luam Yeeb:
• ZB txo cov pa luam yeeb tawm ntau dua 50% (Kev sim Cone Calorimeter).

2. Cov Lus Qhia Txog Kev Sib Npaug ntawm Kev Ua Haujlwm

• Kev Them Nyiaj Rau Cov Khoom Siv Kho Tshuab:
• Ntxiv 2-3% TPU plasticizer (piv txwv li, polycaprolactone polyol) kom tswj tau qhov yooj ywm (elongation > 300%).
• Siv cov hmoov zoo heev (AHP/ZB <2μm) kom txo qhov poob ntawm lub zog tensile.
• Kev Tswj Xyuas Kev Ruaj Ntseg ntawm Cov Txheej Txheem:
• Tswj cov viscosity ntawm slurry ntawm 2000-4000 cP (Brookfield RV, spindle 4, 20 rpm) rau kev txheej txheej sib xws.

IV. Kev sib piv nrog cov tshuaj ua kua uas tiv taus hluav taws kub

V. Cov Kauj Ruam Uas Pom Zoo Rau Kev Siv

1. Kev Ntsuas Hauv Chav Kuaj Mob:

• Soj ntsuam AHP/ZB ib qho zuj zus thiab ua ke (gradient loading: 10%, 15%, 20%).
• Soj ntsuam qhov ruaj khov ntawm kev sib kis (tsis muaj kev sib sau ua ke tom qab 24 teev), kev hloov pauv ntawm viscosity, thiab kev sib xws ntawm txheej.

1. Kev Txheeb Xyuas Qhov Ntsuas Pilot:

• Txhim kho qhov chaw ziab kom zoo (lub sijhawm/kub) thiab sim qhov hluav taws kub tsis kam (UL94, LOI) thiab cov khoom siv kho tshuab.
• Piv cov nqi: Yog tias AHP+ZB txo cov nqi los ntawm >30% piv rau cov kua FRs, nws muaj peev xwm ua tau nyiaj txiag.

1. Kev Npaj Txhim Kho:

• Koom tes nrog cov neeg muag khoom los tsim cov masterbatches AHP/ZB uas tau tawg ua ntej (DMF-based) rau kev tsim khoom yooj yim.

VI. Xaus Lus

Nrog cov txheej txheem tswj kev sib kis, AHP thiab ZB tuaj yeem ua haujlwm ua cov tshuaj tiv thaiv hluav taws zoo rau TPU / DMF coatings, yog tias:

1. Kev hloov kho qhov chaw + kev sib kis high-shearsiv los tiv thaiv cov khoom me me agglomeration.
2. AHP (thawj) + ZB (synergist)sib npaug ntawm kev ua haujlwm tau zoo thiab tus nqi.
3. Rausiab pob tshab / yooj ywmcov kev cai, cov kua phosphorus-nitrogen FRs (piv txwv li, Levagard 4090N) tseem zoo dua.

Sichuan Taifeng Tshiab Hluav Taws Kub Retardant Co., Ltd. (ISO & REACH)

Email: lucy@taifeng-fr.com