化學(xué)配方數(shù)據(jù)庫(kù)
| 配方類(lèi)型： |
EMULSIONS |
| 配方說(shuō)明： |
Vinyl-Acrylic Emulsion (Latex) |
| 配方組成： |
"Igepal" CO-897/50.00
Formula No.
2-Ethylhexyl acrylate/186.00
"Igepal" CO-630/6.00
Cellosize WP-09/7.40
Sodium bicarbonate/0.92
Sodium bicarbonate/2.00
Deionized water/665.00
Hydroxyethyl cellulose, low viscosity grade/5.50
Vinyl acetate/1055.20
Vinyl acetate/478.40
"Abex" VA-50/78.00
2-Ethylhexyl acrylate/119.60
Deionized water/336.82
Sodium persulfate/2.50
Sodium persulfate (FMC)/0.86
"Nopco" NDW/1.50 |
| 配制方法： |
(1) Charge aqueous solution containing colloid, buffer, initial persulfate and initial surfactant. Apply heat.
(2) Add monomer and persulfate over a five-hour period, maintaining reaction temperature of 167F (75C).
(3) Intermediate surfactant is added 20 minutes before end of monomer addition period.
(4) Following the intermediate surfactant addition, the balance of monomer and initiator are added.
(5) Batch is finished conventionally. |
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