Method for preparing styrene-butadiene latex with low film formation temperature
A technology of styrene-butadiene latex and film-forming temperature, which is applied in the field of preparation of styrene-butadiene latex, can solve the problems of delaying film-forming time of styrene-butadiene latex, affecting the performance and appearance of finished products, and prolonging production time, so as to save costs and water resources, Effect of reducing cracks and lowering film forming temperature
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[0065] Example 1: A method for preparing seed gum, which is prepared by the following steps:
[0066] Step Y, preparation of the reaction solution: mix 82 kg of styrene, 5.2 kg of the third emulsifier and 30 kg of water uniformly to obtain a reaction solution;
[0067] Step Z, preparation of seed glue: After vacuuming the seed glue kettle, add 70kg of water and 25kg of the fourth emulsifier to mix uniformly, stir and heat to 85°C, synchronously and continuously add the reaction solution prepared in step Y to react, and react. The temperature was controlled at 90°C, and the feeding time was 2h; after the addition, the temperature was kept for 1.5h to continue the stirring reaction; then it was cooled to 35-38°C and discharged; denoted as N1.
[0068] The third emulsifier and the fourth emulsifier are the same C10 fatty alcohol polyoxyethylene ether.
Example Embodiment
[0069] Example 2: A method for preparing seed gum, which is prepared by the following steps:
[0070] Step Y, preparation of the reaction solution: mix 76kg of styrene, 5.8kg of the third emulsifier and 30kg of water uniformly to obtain a reaction solution;
[0071] Step Z: Preparation of seed glue: After vacuuming the seed glue kettle, add 70kg of water and 22kg of the fourth emulsifier to mix uniformly, stir and heat to 80°C, synchronously and continuously add the substrate solution prepared in step Y for reaction, The reaction temperature was controlled at 87°C, and the feeding time was 2h; after the addition, the temperature was kept for 1.5h to continue the stirring reaction; then, it was cooled to 35-38°C and discharged; denoted as N2.
[0072] The third emulsifier and the fourth emulsifier are the same C10 fatty alcohol polyoxyethylene ether.
Example Embodiment
[0073] Example 3: A method for preparing seed gum, which is prepared by the following steps:
[0074] Step Y, preparation of the reaction solution: mix 79 kg of styrene, 5.5 kg of the third emulsifier and 30 kg of water to obtain a reaction solution;
[0075] Step Z, preparation of seed glue: After vacuuming the seed glue kettle, add 70kg of water and 24kg of the fourth emulsifier and mix uniformly, stir and heat to 80°C, synchronously and continuously add the substrate solution prepared in step Y for reaction, The reaction temperature was controlled at 87°C, and the feeding time was 2h; after the addition, the temperature was kept for 1.5h to continue the stirring reaction; then it was cooled to 35-38°C and discharged; denoted as N3.
[0076] The third emulsifier and the fourth emulsifier are the same C10 fatty alcohol polyoxyethylene ether.
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