Halogen-dawb nplaim retardant siv formulation rau dej-raws li acrylic hluav taws xob adhesives

Halogen-dawb nplaim retardant siv formulation rau dej-raws li acrylic hluav taws xob adhesives

Hauv cov dej-raws li acrylic systems, qhov sib ntxiv ntawm aluminium hypophosphite (AHP) thiab zinc borate (ZB) yuav tsum tau txiav txim siab raws li cov kev thov tshwj xeeb (xws li nplaim hluav taws kub nyhiab, txheej thickness, kev ua haujlwm ntawm lub cev, thiab lwm yam) thiab lawv cov kev sib koom ua ke. Hauv qab no yog cov lus pom zoo dav dav thiab siv ntau yam:

I. Cov Nyiaj Tau Los Ntxiv Ntxiv Reference

Table: Pom Zoo Nplaim Retardant Ntxiv thiab piav qhia

II. Optimization ntawm Compound Ratios

1. Hom Compound Ratios:

• AHP:ZB = 2:1 ~ 4:1(piv txwv li, 15% AHP + 5% ZB, tag nrho 20%).
• Kho cov piv txwv sim, piv txwv li:
• High nplaim retardancy xav tau:AHP 15% ~ 20%, ZB 5% ~ 8%.
• Balanced lub cev muaj zog:AHP 10% ~ 15%, ZB 3% ~ 5%.

1. Synergistic Effects:

• Zinc borate txhim kho nplaim retardancy los ntawm:
• Stabilizing char formation (kev cuam tshuam nrog txhuas phosphate tsim los ntawm AHP).
• Tso cov dej khis kom nqus cua sov thiab dilute cov pa hluav taws xob.

III. Kev sim validation cov kauj ruam

1. Stepwise Test:

• Kev ntsuam xyuas tus kheej:Ua ntej ntsuas AHP (5% ~ 20%) lossis ZB (5% ~ 15%) cais rau cov nplaim hluav taws (UL-94, LOI) thiab txheej txheej (adhesion, hardness, dej tsis kam).
• Compound optimization:Tom qab xaiv tus lej AHP hauv paus, nce ntxiv ZB (piv txwv li, 3% mus rau 8% thaum AHP yog 15%) thiab saib xyuas kev txhim kho cov nplaim hluav taws thiab cov kev mob tshwm sim.

1. Key Performance Indicators:

• Nplaim retardancy:LOI (lub hom phiaj ≥28%), UL-94 ntsuam xyuas (V-0 / V-1), pa luam yeeb ntom.
• Lub cev muaj zog:Zaj duab xis tsim, adhesion (ASTM D3359), dej tsis kam (tsis muaj delamination tom qab 48h immersion).

IV. Cov ntsiab lus tseem ceeb

• Dispersion Stability:
• AHP yog hygroscopic-ua ntej qhuav lossis siv qhov hloov pauv ntawm qhov chaw.
• Siv cov tshuaj dispersants (xws li, BYK-190, TEGO Dispers 750W) los txhim kho qhov sib xws thiab tiv thaiv sedimentation.
• pH Compatibility:
• Cov txheej txheem acrylic dej feem ntau muaj pH ntawm 8-9; xyuas kom AHP thiab ZB nyob ruaj khov (tsis txhob hydrolysis lossis decomposition).
• Txoj Cai Ua Raws Cai:
• AHP yuav tsum ua tau raws li RoHS tsis muaj halogen; ZB yuav tsum siv cov qib qis hnyav-hlau impurity.

V. Alternative lossis Supplemental Solutions

• Melamine Polyphosphate (MPP):Muaj peev xwm txhim kho cov nplaim hluav taws xob ntxiv thaum ua ke nrog AHP (xws li 10% AHP + 5% MPP + 3% ZB).
• Nano nplaim retardants:Nano-qib ZB (ntxiv txo mus rau 1% ~ 3%) los yog txheej ob hydroxides (LDH) rau kev txhim kho kev cuam tshuam.

VI. Cov lus qhia luv luv

• Pib formulation:AHP 10% ~ 15% + ZB 3% ~ 5% (tag nrho 13% ~ 20%), ces optimize.
• Validation method:Ntsuas cov qauv me me rau LOI thiab UL-94 thaum ntsuas cov khoom siv tshuab.

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