Preparation method of polymer composite material crosslinked double-modified attapulgite and biomass charcoal fillers
A biochar and cross-linking technology, applied in chemical instruments and methods, fertilizer mixtures, soil conditioning materials, etc., can solve problems such as affecting soil fertility, low remediation efficiency, easy secondary pollution, etc., and achieve high remediation efficiency. Improved yield and quality, significant environmental benefits
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Embodiment 1
[0023] (1) Mix chitosan into 100mL water at a mass concentration of 0.01g / mL, fully swell for 1h and set aside;
[0024] (2) Mix polyacrylamide, polyethylene oxide, and polyvinyl alcohol into 100mL water at mass concentrations of 0.01g / mL, 0.005g / mL, and 0.01g / mL, respectively, stir and heat to 80°C, then magnetically stir for 30min and set aside;
[0025] (3) Mix ferric nitrate nonahydrate into 100mL water at a mass concentration of 0.05g / mL, stir fully for 2min and set aside;
[0026] (4) Add attapulgite at a mass concentration of 0.05 g / mL to 100 mL of the solution prepared in step (3), stir magnetically for 24 hours, then filter, and dry the filtered solid at 105° C. for 2 hours for use;
[0027] (5) Put the solid dried in step (4) into a tubular resistance furnace for heating, heat up to 300°C and stay for 3 hours, cool down to normal temperature, take it out from the tubular resistance furnace and grind it through a 200-mesh standard sieve and wait use;
[0028] (6) Af...
Embodiment 2
[0039] (1) Chitosan was mixed into 100mL water with a mass concentration of 0.05g / mL, fully swollen for 3 hours and then used;
[0040] (2) Mix polyacrylamide, polyethylene oxide, and polyvinyl alcohol into 100mL water at mass concentrations of 0.04g / mL, 0.02g / mL, and 0.05g / mL, respectively, stir and heat to 80°C, then magnetically stir for 30min and set aside;
[0041] (3) Mix ferric nitrate nonahydrate into 100mL water at a mass concentration of 0.09g / mL, stir well for 2min and set aside;
[0042] (4) Add attapulgite at a mass concentration of 0.10 g / mL to 100 mL of the solution prepared in step (3), stir magnetically for 24 hours and then filter, and dry the filtered solid at 105° C. for 2 hours for use;
[0043] (5) Put the dried solid in step (4) into a tube-type resistance furnace for heating, heat up to 500°C and stay for 3 hours, cool down to room temperature, take it out from the tube-type resistance furnace and grind it through a 200-mesh standard sieve. use;
[00...
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