Method for preparing manioc waste super absorbent resin
A technology of superabsorbent resin and cassava slag, which is applied in the field of superabsorbent resin, can solve the problems of astonishing development speed and achieve the effects of promoting development, simple preparation process and reducing environmental pollution
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Embodiment 1
[0018] 1. Raw material of cassava residue: take the cassava residue processed by the cassava starch factory, dehydrate with a cassava residue dehydrator, dry at 80°C, pulverize, and pass through a 40-mesh sieve to obtain cassava residue dry powder.
[0019] 2. Copolymerization: use cassava residue dry powder and acrylic acid in a ratio of 1:11g / ml as raw material, add 0.06g / g crosslinking agent N,N-methylenebisacrylamide and 0.002g / g initiator Potassium sulfate was heated to 95°C under nitrogen protection and reacted for 2 hours to obtain the synthetic product.
[0020] 3. Impurity removal: Add 2 times acetone to the synthetic product and wash it 2 times.
[0021] 4. Finished product: take the tapioca residue superabsorbent resin after removing impurities, dry and pulverize at 70°C to obtain a superabsorbent resin with a water absorption rate of 700 times, and pack the cassava residue superabsorbent resin product after passing the test.
Embodiment 2
[0023] 1. Raw material of cassava dregs: take cassava dregs as waste from cassava alcohol processing plants, dehydrate them with a cassava dregs dehydrator, dry at 105°C, pulverize, and pass through a 200-mesh sieve to obtain cassava dregs dry powder.
[0024] 2. Copolymerization: take cassava residue dry powder and acrylic acid in a ratio of 1:9g / ml as raw material, add 0.08g / g crosslinking agent N,N-methylenebisacrylamide and 0.004g / g initiator Potassium peroxodisulfate was heated to 70°C under the protection of nitrogen, and reacted for 2.5 hours.
[0025] 3. Impurity removal: Add 1.5 times of acetone to the synthetic product and wash it 3 times.
[0026] 4. Finished product: take the tapioca dregs superabsorbent resin after removing impurities, dry it at 90°C, and pulverize it to obtain a superabsorbent resin with a water absorption rate of 600 times. After passing the test, pack the cassava dregs superabsorbent resin product.
Embodiment 3
[0028] 1. Raw material of cassava dregs: take cassava dregs as waste from cassava alcohol processing plants, dehydrate them with a cassava dregs dehydrator, dry at 60°C, pulverize, and pass through a 200-mesh sieve to obtain cassava dregs dry powder.
[0029] 2. Copolymerization: Take cassava residue dry powder and acrylic acid in a ratio of 1:12g / ml as raw material, add 0.12g / g crosslinking agent N,N-methylenebisacrylamide and 0.004g / g initiator Potassium peroxodisulfate was heated to 60°C under nitrogen protection, and reacted for 4 hours.
[0030] 3. Impurity removal: Add 3 times acetone to the synthetic product and wash it twice.
[0031] 4. Finished product: take the tapioca residue superabsorbent resin after removing impurities, dry it at 60°C, and pulverize it to obtain a superabsorbent resin with a water absorption rate of 790 times. After passing the test, pack the cassava residue superabsorbent resin product.
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