A kind of sponge gel and its preparation method and application
A technology of sponge gel and gel, applied in chemical instruments and methods, other chemical processes, water/sludge/sewage treatment, etc., can solve problems such as mechanical strength and other environmental adaptability limitations, and achieve enhanced mechanical strength and adsorption capacity, specific surface area increase, and the effect of good adsorption capacity
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Embodiment 1
[0038] The preparation of sponge gel includes the following steps:
[0039] (1) take by weighing 6g sodium alginate and 3g soluble starch, place in 75 ℃ of hot water of 80mL and stir until completely dissolved and decomposed, then add 20mL of water to adjust the viscosity of the final product to be 500mPa s to obtain a matrix solution;
[0040] (2) reducing the temperature of the matrix solution obtained in step (1) to 65° C., then adding 3g of acrylic acid dropwise and stirring for 20min to obtain the matrix monomer mixed solution to be initiated;
[0041] (3) cooling the mixed solution of matrix monomers to be initiated obtained in step (2) to 55°C, adding 0.06g initiator ammonium persulfate, stirring at a constant temperature of 55°C for 20min, adding 0.04g crosslinking agent N,N-sulfite Methyl bisacrylamide was rapidly stirred at a speed of 300 r / min for 5 min at 55 °C, then 0.4 g of carbon nanotubes were added, and the solid was homogeneously dispersed in the solution usi...
Embodiment 2
[0046] The preparation of sponge gel, the steps are as follows:
[0047](1) take by weighing 6g sodium alginate and 3g soluble starch, place in 75 ℃ of hot water of 80mL and stir until completely dissolved and decomposed, then add 20mL of water to adjust the viscosity of the final product to be 500mPa s to obtain a matrix solution;
[0048] (2) reducing the temperature of the obtained matrix solution in step (1) to 65°C, then adding 6g of acrylic acid dropwise and stirring for 30min to obtain the matrix monomer mixed solution to be initiated;
[0049] (3) cooling the mixed solution of matrix monomers to be initiated obtained in step (2) to 55°C, adding 0.06g ammonium persulfate, stirring at constant temperature for 20min, adding 0.04gN,N-methylenebisacrylamide, and adding 0.04gN,N-methylenebisacrylamide at 50 Rapid stirring at a speed of 300 r / min for 10 min at ℃, then adding 0.4 g of carbon nanotubes, and using an ultrasonic vibration device to homogeneously disperse the soli...
Embodiment 3
[0052] The preparation of sponge gel includes the following steps:
[0053] (1) take by weighing 6g sodium alginate and 3g soluble starch, place in 75 ℃ of hot water of 80mL and stir until completely dissolved and decomposed, then add 20mL of water to adjust the viscosity of the final product to be 500mPa s to obtain a matrix solution;
[0054] (2) reducing the temperature of the matrix solution obtained in step (1) to 65°C, then adding 6g of acrylic acid dropwise, stirring for 20min, to obtain the matrix monomer mixed solution to be initiated;
[0055] (3) cooling the mixed solution of matrix monomers to be initiated obtained in step (2) to 55°C, adding 0.06g ammonium persulfate, stirring at constant temperature for 20min, adding 0.04gN,N-methylenebisacrylamide, and adding 0.04gN,N-methylenebisacrylamide at 60 Rapid stirring at a speed of 300 r / min for 5 min at ℃, then adding 0.6 g of carbon nanotubes, and using an ultrasonic vibration device to homogeneously disperse the sol...
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