A kind of polypropylene supported organic solvent absorbent and preparation method thereof
An organic solvent and absorbent technology, applied in the field of polypropylene-loaded organic solvent absorbent and its preparation, can solve the problems of low mechanical strength, swelling and deformation, etc., and achieve high mechanical strength, good industrial applicability, and good absorption performance Effect
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Embodiment 1
[0035] (1) 5g polypropylene particles were swollen in 40g xylene for 24h.
[0036] (2) Dissolve 0.25 g of sodium dodecyl sulfate in 100 g of distilled water by ultrasonication.
[0037] (3) Mix 10.5g of styrene, 3.5g of butyl acrylate, 0.15g of divinylbenzene, and 0.15g of dibenzoyl peroxide uniformly, and let nitrogen gas flow into the mixture for 10 minutes.
[0038] (4) Add the swollen polypropylene particles obtained in step (1) and the emulsifier aqueous solution prepared in step (2) into a three-necked flask, control the speed of the stirrer to be 300 rpm, and stir at 70 °C for 10 min.
[0039] (5) The mixture prepared in step (3) was added dropwise to the three-necked flask, and the graft coating reaction was carried out at 80 °C for 5 hours.
[0040] (6) The obtained product is suction filtered, washed with water, dried, and then subjected to Soxhlet extraction with acetone as a solvent, and finally dried to obtain a polypropylene-supported organic solvent absorbent. ...
Embodiment 2
[0043] (1) 5g polypropylene particles were swollen in 40g toluene for 24h.
[0044] (2) Dissolve 0.25 g of sodium dodecyl sulfate in 100 g of distilled water by ultrasonication.
[0045] (3) Mix 9g of styrene, 3g of 2-ethylhexyl acrylate with 0.15g of trimethylolpropane trimethacrylate and 0.15g of azobisisobutyronitrile uniformly, and introduce nitrogen into the mixture for 10 minute.
[0046] (4) Add the swollen polypropylene particles obtained in step (1) and the emulsifier aqueous solution prepared in step (2) into the three-necked flask, control the speed of the stirrer to be 350 rpm, and stir at 70 °C for 30 min.
[0047] (5) The mixture prepared in step (3) was added dropwise to the three-necked flask, and the graft coating reaction was carried out at 80 °C for 8 hours.
[0048] (6) The obtained product is suction filtered, washed with water, dried, then subjected to Soxhlet extraction with acetone as a solvent, and finally dried to obtain a polypropylene-supported or...
Embodiment 3
[0050] (1) 5g polypropylene particles were swollen in 50g acetone for 12h.
[0051](2) Dissolve 0.25 g of sodium dodecyl sulfonate in 100 g of distilled water by ultrasonication.
[0052] (3) Mix 15 g of styrene, 5 g of lauryl methacrylate, 0.1 g of ethylene glycol dimethacrylate and 0.15 g of dilauroyl peroxide uniformly, and let nitrogen gas flow into the mixture for 10 minutes.
[0053] (4) Add the swollen polypropylene particles obtained in step (1) and the emulsifier aqueous solution prepared in step (2) into a three-necked flask, control the speed of the stirrer to be 300 rpm, and stir at 70 °C for 10 min.
[0054] (5) The mixture prepared in step (3) was added dropwise to the three-necked flask, and the graft coating reaction was carried out at 80 °C for 6 hours.
[0055] (6) The obtained product is suction filtered, washed with water, dried, then subjected to Soxhlet extraction with acetone as a solvent, and finally dried to obtain a polypropylene-supported organic so...
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