Interpenetrating polymer network modified pre-crosslinked profile control agent and preparation method thereof
An interpenetrating network and pre-crosslinking technology, applied in the field of interpenetrating network modified pre-crosslinking profile control agent and its preparation, can solve the problems of poor water retention performance, poor temperature resistance, low water absorption and the like
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Embodiment 1
[0033] In this embodiment, an interpenetrating network modified pre-crosslinked profile control agent includes the following components, calculated in parts by mass:
[0034]
[0035] The monomer A is vulcanized polyvinyl alcohol, and the vulcanization process is to dissolve 7 g of polyvinyl alcohol in 100 ml of dimethyl sulfoxide solution, heat and stir in a water bath at 50 ° C, and then place it in an ice-water bath at 5 to 10 ° C. Add twice the volume of concentrated sulfuric acid for vulcanization, add the vulcanized polyvinyl alcohol to anhydrous acetone until white precipitates are precipitated, wash with anhydrous methanol, filter and dry.
[0036] The monomer B is acrylic acid.
[0037] The monomer C is gelatinized starch, and the gelatinization process is to stir and gelatinize in a constant temperature water bath at 80° C. for 30 minutes according to the mass ratio of deionized water:starch=9:1.
[0038] The crosslinking agent is N,N'-methylenebisacrylamide.
...
Embodiment 2
[0055] In this embodiment, an interpenetrating network modified pre-crosslinked profile control agent includes the following components, calculated in parts by mass:
[0056]
[0057] The monomer A is vulcanized polyvinyl alcohol, and the vulcanization process is to dissolve 7 g of polyvinyl alcohol in 100 ml of dimethyl sulfoxide solution, heat and stir in a water bath at 50 ° C, and then place it in an ice-water bath at 5 to 10 ° C. Add twice the volume of concentrated sulfuric acid for vulcanization, add the vulcanized polyvinyl alcohol to anhydrous acetone until white precipitates are precipitated, wash with anhydrous methanol, filter and dry.
[0058] The monomer B is acrylic acid.
[0059] The monomer C is gelatinized starch, and the gelatinization process is to stir and gelatinize in a constant temperature water bath at 80° C. for 30 minutes according to the mass ratio of deionized water:starch=9:1.
[0060] The crosslinking agent is N,N'-methylenebisacrylamide.
...
Embodiment 3
[0075] In this embodiment, an interpenetrating network modified pre-crosslinked profile control agent includes the following components, calculated in parts by mass:
[0076]
[0077] The monomer A is vulcanized polyvinyl alcohol, and the vulcanization process is to dissolve 7 g of polyvinyl alcohol in 100 ml of dimethyl sulfoxide solution, heat and stir in a water bath at 50 ° C, and then place it in an ice-water bath at 5 to 10 ° C. Add twice the volume of concentrated sulfuric acid for vulcanization, add the vulcanized polyvinyl alcohol to anhydrous acetone until white precipitates are precipitated, wash with anhydrous methanol, filter and dry.
[0078] The monomer B is acrylic acid.
[0079] The monomer C is gelatinized starch, and the gelatinization process is to stir and gelatinize in a constant temperature water bath at 80° C. for 30 minutes according to the mass ratio of deionized water:starch=9:1.
[0080] The crosslinking agent is N,N'-methylenebisacrylamide.
...
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