CPC C09K 8/5083 (2013.01) [C08F 8/28 (2013.01); C09K 8/5045 (2013.01)] | 8 Claims |
1. A method for preparing a thermoplastic elastomer for profile control and water shutoff, comprising:
(1) weighing raw materials;
(2) dividing the water into two parts, adding the component A into the first pan of water, heating and stirring to prepare a solution, and cooling;
(3) dripping the strong acid into the cooled solution;
(4) dripping a second part of water and a hydrophobic modifier to the solution in sequence, heating and stirring after the dripping to obtain the thermoplastic elastomer;
wherein the raw materials comprise the following components by weight:
8-10 parts of a component A,
1-3 of a strong acid,
1-3 parts of a hydrophobic modifier, and
100-105 parts of water;
the component A is one of a polyethylene glycol, a polyvinyl methyl ether, a polyvinyl alcohol and a copolymer of acrylamide and acrylonitrile;
the strong acid is one of a concentrated hydrochloric acid and a concentrated sulfuric acid;
the hydrophobic modifier is one of a formaldehyde, an acetaldehyde, a propionaldehyde, a butyraldehyde, a β-propiolactone, a γ-butyrolactone, a δ-valerolactone, methyltriacetylsilane, a methyltrimethylsilane, a butyl acrylate, and an ethylene glycol dimethacrylate.
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