A magnetic carbon-based composite environmental material and its preparation method and application
A magnetic carbon, environmental technology, applied in separation methods, chemical instruments and methods, alkali metal compounds, etc., can solve the problems of separation, secondary environmental hazards, small particle size of nanomaterials, etc., to improve strength, promote absorption, The effect of high adsorption
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Embodiment 1
[0039] The rice straw is crushed through a 40-mesh sieve to obtain rice straw powder, the attapulgite is crushed and passed through a 70-mesh sieve to obtain attapulgite powder, and the goethite is crushed and passed through a 70-mesh sieve to obtain goethite powder. Mix 100 g of rice straw powder, 100 g of attapulgite powder, and 100 g of goethite powder (the mass ratio of rice straw, attapulgite and goethite is 1:1:1) to obtain a mixture a;
[0040] Add an appropriate amount of alcohol (according to the standard of just dissolving the resin and curing agent) to dissolve 30g Danbao brand E44 epoxy resin 6101 and 24g Danbao brand low molecular weight 650 polyamide resin just enough, pour the dissolved liquid into the mixture a, stir After uniformity, dry naturally for 24 hours, and then dry at 105°C for 60 minutes to obtain mixture b; crush mixture b and pass through a 40-mesh sieve, and then hot-press at 100°C and 6MPa for 50 minutes to obtain a sample; Under the same conditi...
Embodiment 2
[0042] The preparation method of the present embodiment is the same as in Example 1, except that the rice straw powder is 75g, the attapulgite powder is 150g, and the goethite powder is 75g, that is, the mass ratio of rice straw, attapulgite and goethite is 1: 2:1.
Embodiment 3
[0044] The preparation method of the present embodiment is the same as in Example 1, except that the rice stalk powder 150g, the attapulgite powder 75g, and the goethite powder 75g, that is, the mass ratio of the rice stalk, attapulgite and goethite is 2: 1:1.
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