AM/AAK/AMPS terpolymer and polymer emulsion strong coating agent as well as preparation methods thereof
A technology of terpolymer and coating agent, which is applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve the problems of low temperature resistance, salt resistance and shear resistance, and achieve excellent working performance , cost reduction, good salt resistance effect
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[0023] Example 1. The AM / AAK / AMPS terpolymer includes 20-25 parts by weight of acrylamide, 10-15 parts of potassium acrylate, and 2-acrylamido-2-methylpropane sulfonic acid. 5 to 10 parts of sodium, 5 to 10 parts of emulsifier, 0.5 to 1 part of initiator, 25 to 30 parts of oil phase, and 9 to 34.5 parts of water.
Example Embodiment
[0024] Example 2: The AM / AAK / AMPS terpolymer includes 20 parts or 25 parts of acrylamide, 10 parts or 15 parts of potassium acrylate, and 2-acrylamido-2-methylpropane sulfonic acid in parts by weight. 5 parts or 10 parts of sodium, 5 parts or 10 parts of emulsifier, 0.5 parts or 1 part of initiator, 25 parts or 30 parts of oil phase and 9 parts or 34.5 parts of water.
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[0025] Example 3, as the preference of Example 1 and Example 2, the oil phase is one or more of 3# white oil, 4# white oil, 5# white oil, 10# white oil and 15# white oil; or / And, the emulsifier is SP-80 and OP-10 mixed together in a mass ratio of 1:0.05 to 1:0.1; or / and, the initiator is one of ammonium persulfate, sodium bisulfite and potassium persulfate the above.
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