Pore-filled ion exchange polyelectrolyte composite membrane from which surface ion exchange polyelectrolyte has been removed and method for manufacturing same
An ion exchange and ion filling technology, applied in chemical instruments and methods, membranes, circuits, etc., can solve the problem of difficult to change the configuration, and achieve the effects of reducing the preparation cost, simple preparation process and low swelling degree.
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preparation example Construction
[0053] The first aspect of the present application provides a method for preparing a pore-filled ion-exchange polymer electrolyte composite membrane from which the surface ion-exchange polymer electrolyte has been removed, comprising:
[0054] Prepare an ion exchange precursor solution 700, which includes an electrolyte monomer with a quaternary ammonium salt with a cationic group or an electrolyte monomer with a sulfonic acid with an anionic group, an acrylamide-based cross-linking agent with a tertiary amine functional group, and an initiator and a solvent; impregnating the porous polymer support 110 in the ion exchange precursor solution 700; introducing the upper membrane 200, the porous polymer support 110 and the lower membrane 300 into pressing rolls, so that the upper The membrane 200 and the lower membrane 300 are compressed on the upper and lower parts of the polymer support 110; by irradiating ultraviolet light on the porous polymer support 110 compressed with the up...
preparation example 1
[0115] Preparation Example 1, Preparation of Anion Exchange Polymer Electrolyte Composite Membrane
[0116] In order to prepare an anion exchange polymer electrolyte composite membrane, (3-acrylamidopropyl)trimethylammonium chloride ((3-acrylamidopropyl)trimethylammonium chloride), 1,4-bisacryloylpiperazine (1,4-bis (acryloyl)piperazine) and deionized water are mixed and stirred at a weight ratio of 12:1:10, and based on 100 parts by weight of the mixed solution, will be used as a photoinitiator (will be used as a photoinitiator) in methanol 2-hydroxy-2-methyl-1-phenylpropane-1-one diluted to 10% by weight is mixed at 0.1 to 0.5 parts by weight to prepare an anion exchange precursor solution 700 .
[0117] Then, a commercially available surfactant (dodecylbenzenesulfonic acid (DBSA)) was immersed in a solution diluted in 0.5 parts by weight to 1 part by weight of water for 1 minute to 2 minutes, and then dried to make fine pores The surface is hydrophilic, and the polyolefin...
preparation example 2
[0121] Preparation Example 2, Preparation of Cationic Exchange Polymer Electrolyte Composite Membrane
[0122] A cation exchange polymer electrolyte composite membrane was prepared using the same method as the anion exchange polymer electrolyte composite membrane of Preparation Example 1, but in order to prepare the cation exchange precursor solution 700, the following method was performed.
[0123] Sodium 2-acrylamido-2-methylpropanesulfonate, 1,4-bis(acryloyl)piperazine and deionized water Mixed and stirred at a weight ratio of 6:1:6, and based on 100 parts by weight of the mixed solution, 2-hydroxy-2-methyl-1- 2-hydroxy-2-methyl-1-phenylpropane-1-one (2-hydroxy-2-methyl-1-phenylpropane-1-one) is mixed at 0.1 to 0.5 parts by weight to prepare a cation exchange precursor solution 700 .
[0124] Thereafter, a cation exchange polymer electrolyte composite membrane was prepared by performing the same method as that of the anion exchange polymer electrolyte composite membrane of...
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