A kind of dendritic high-density solid amine fiber material and preparation method thereof
A high-density, amine fiber technology, applied in the field of dendritic high-density solid amine fiber material and its preparation, can solve problems such as insufficient adsorption capacity, and achieve improved adsorption capacity, high amine density, good thermal stability and chemical stability sexual effect
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Embodiment 1
[0044] 1. Preparation
[0045] The preparation reaction formula is attached figure 2 As shown, the specific steps are as follows:
[0046] (1) Immerse the polypropylene fiber in 15 wt% NaOH aqueous solution for 24 h, pour off the solution, wash the fiber with water for several times until the washing solution is neutral, and dry it in a vacuum oven at 70 °C to constant weight.
[0047] (2) Weigh 10 g of the polypropylene fiber obtained in step (1) into a stoppered Erlenmeyer flask, and then seal it with a polytetrafluoroethylene film. Cobalt 60 was used as the radiation source, and the radiation dose was controlled to 40 KGy, and the radiation time was 50 h. Methyl acrylate and methanol were prepared into a 160 mL homogeneous mixed solution at a ratio of 40:60 by volume, and 4 g of pre-irradiated polypropylene fibers were added at a bath ratio of 1:40 (weight: volume). React for 3 h. After the grafting reaction is over, take out the fibers, first wash the grafted fibers r...
Embodiment 2
[0054] 1. Preparation
[0055] (1) Immerse the polypropylene fiber in 15 wt% NaOH aqueous solution for 24 h, pour off the solution, wash the fiber with water for several times until the washing solution is neutral, and dry it in a vacuum oven at 70 °C to constant weight.
[0056] (2) Weigh 10 g of the polypropylene fiber obtained in step (1) into a stoppered Erlenmeyer flask, and then seal it with a polytetrafluoroethylene film. Cobalt 60 was used as the radiation source, and the radiation dose was controlled to 40 KGy, and the radiation time was 50 h. According to the bath ratio (weight: volume) of 1:40, add 4 g of pre-irradiated polypropylene fiber to 25 / 75 (v / v)% methyl acrylate / water mixture, and react at 80 °C 1 h. After the grafting reaction is over, take out the fibers, first wash the grafted fibers repeatedly with N,N-dimethylformamide to remove homopolymers and unreacted grafted monomers, and finally wash with ethanol, dry in vacuum to constant weight, The calculat...
Embodiment 3
[0063] 1. Preparation
[0064] (1) Immerse the viscose fiber in 8wt% NaOH aqueous solution for 24 h, pour off the solution, wash the fiber with water several times until the washing solution is neutral, and dry it in a vacuum oven at 70 °C to constant weight.
[0065] (2) Weigh 10 g of the polypropylene fiber obtained in step (1) into a stoppered Erlenmeyer flask, and then seal it with a polytetrafluoroethylene film. Cobalt 60 was used as the radiation source, and the radiation dose was controlled to 40 KGy, and the radiation time was 50 h. Acrylamide monomer and water are prepared into a homogeneous mixture at a mass-volume ratio of 15 / 85, and 4.0 g of pre-irradiated viscose fiber is added at a bath ratio of 1:30 (weight: volume). Under reaction for 4 h. Take out the fiber after the grafting reaction is over, first wash the grafted fiber repeatedly with hot water to remove the homopolymer and unreacted grafted monomer, finally wash it with ethanol, dry it in vacuum to const...
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