| 配方类型： |
EMULSIONS |
| 配方说明： |
Soft Asphalt Emulsion |
| 配方组成： |
"Carbopol" 941/1.50
Soft asphalt/400.00
Sodium hydroxide (10% solution)/4.50
Watr/400.00
"Ethomeen" C-25/0.75 |
| 配制方法： |
Carefully disperse the "Carbopol" 941 in the water. After thorough dispersion, neutralize with the sodium hydroxide followed by the "Ethomeen" C-25. Heat this mucilage to 65-70'C. (The water can be heated prior to "Carbopol" 941 and neutralizer addition as this will assist dispersion of the "Carbopol" 941). Separately heat the asphalt to 85'C.
Utilizing moderately high shear mixing, slowly add the molten asphalt to the water mucilage. Add the asphalt no faster than the rate of dispersion. If the emulsion will invert and separate.
When the asphalt has been added, continue mixing for a short time to ensure uniformity. Shock cool the emulsion without mixing. |
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