Preparation method and applications of Mg/Al/C fiber-polyurethane foamed material
A technology of foaming materials and fiber materials, which is applied in the field of polymer composite material synthesis, can solve problems such as poor stability, and achieve the effects of high adsorption rate, high practical value, good oil absorption and removal effect
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Embodiment 1
[0037] (1) Dried the fresh bamboo and pulverized it with a pulverizer, and sieved to obtain bamboo powder with a mesh size of less than 100. The obtained bamboo powder was placed in a high-temperature tube furnace, and calcined at 550° C. for 1 hour to obtain bamboo charcoal powder. Take 0.3 g of bamboo powder and add it into a glass vessel, then place it in a polytetrafluoroethylene-lined stainless steel reaction kettle filled with 3 mL of concentrated nitric acid, and then move it into an oven at 120 °C for 3 h. After taking out, the acid is washed away with distilled water to obtain modified bamboo charcoal powder;
[0038] (2) Add 20 g aluminum nitrate (Al(NO 3 ) 3 •9H 2 O) Dissolve in 200 ml of deionized water, gradually add ammonia water (c=1 mol / L) dropwise to the solution while stirring at room temperature, stop the dropwise addition when pH=8, filter with suction, and obtain a precipitate. The precipitate was redissolved in 200 mL of deionized water, peptized by a...
Embodiment 2
[0045] (1) Dried the fresh bamboo and pulverized it with a pulverizer, and sieved to obtain bamboo powder with a mesh size of less than 100. The obtained bamboo powder was placed in a high-temperature tube furnace and calcined at 650 °C for 3 h to obtain bamboo charcoal powder. Take 0.3 g of bamboo powder and add it to a glass vessel, then place it in a polytetrafluoroethylene-lined stainless steel reaction kettle filled with 3 mL of concentrated nitric acid, and then move it into an oven at 120 °C for 5 h. After taking out, the acid is washed away with distilled water to obtain modified bamboo charcoal powder;
[0046] (2) 20 g aluminum nitrate (Al(NO 3 ) 3 •9H 2 O) Dissolve in 200 ml of deionized water, gradually add ammonia water (c=1 mol / L) dropwise to the solution while stirring at room temperature, stop the dropwise addition when pH=8, filter with suction, and obtain a precipitate. The precipitate was redissolved in 200 mL of deionized water, peptized by adding 0.41 ...
Embodiment 3
[0053] (1) Dried the fresh bamboo and pulverized it with a pulverizer, and sieved to obtain bamboo powder with a mesh size of less than 100. The obtained bamboo powder was placed in a high-temperature tube furnace and calcined at 850 °C for 4 h to obtain bamboo charcoal powder. Take 0.3 g of bamboo powder and add it to a glass vessel, then place it in a polytetrafluoroethylene-lined stainless steel reaction kettle filled with 3 mL of concentrated nitric acid, and then move it into an oven at 120 °C for 7 h. After taking out, the acid is washed away with distilled water to obtain modified bamboo charcoal powder;
[0054] (2) Add 20 g aluminum nitrate (Al(NO 3 ) 3 •9H 2 O) Dissolve in 200 ml of deionized water, gradually add ammonia water (c=1 mol / L) dropwise to the solution while stirring at room temperature, stop the dropwise addition when pH=8, filter with suction, and obtain a precipitate. The precipitate was redissolved in 200 mL of deionized water, peptized by adding 0...
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