Eco-friendly paper file box with anti-mildew and anti-insect function
An environmentally friendly, file box technology, applied in the direction of preventing rotten containers, papermaking, paper, etc., can solve the problems of easy mildew, easy to grow insects, etc., achieve durable anti-mildew and insect-proof effects, increase flame retardant performance, and promote solubility. Effect
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Embodiment 1
[0042] (4-Hydroxyphenyl)-phenylphosphonium bromide was prepared by the following steps:
[0043]Add 0.1mol triphenylphosphine, 0.15mol p-bromophenol, 100mL ethylene glycol and 0.8g nickel bromide into a three-necked flask equipped with a nitrogen-passing device, a stirring device and a thermometer, and under nitrogen protection at 180°C, the reaction was stirred for 8h , cooled to room temperature, then the reactant was dissolved in dichloromethane, washed with deionized water for 3 times, the solvent dichloromethane was removed by rotary evaporation, and vacuum dried at 50 °C for 12 h to obtain the product brominated (4-hydroxyphenyl) )-phenylphosphonium.
Embodiment 2
[0045] (4-Hydroxyphenyl)-phenylphosphonium bromide was prepared by the following steps:
[0046] Add 0.1mol triphenylphosphine, 0.2mol p-bromophenol, 150mL ethylene glycol and 1.13g nickel bromide into a three-necked flask equipped with a nitrogen-passing device, a stirring device and a thermometer, and under nitrogen protection at 180°C, the reaction was stirred for 8h , cooled to room temperature, then the reactant was dissolved in dichloromethane, then washed with deionized water for 5 times, the solvent dichloromethane was removed by rotary evaporation, and vacuum dried at 50 °C for 12 h to obtain the product brominated (4-hydroxyphenyl) )-phenylphosphonium.
Embodiment 3
[0048] Dichloromonomer is made by the following steps:
[0049] S11. After stirring 0.1 mol of hexylamine, 0.21 mol of methyl acrylate and 100 mL of methanol uniformly, the reaction was stirred at 20° C. for 6 h, and then the methanol was removed by rotary evaporation. The resultant was dissolved in 80 mL of dichloromethane, fully stirred, and dropped into it Add 1M HCl solution until the pH is less than 1, then add 80mL deionized water to wash, extract 3 times with 120mL dichloromethane, and then remove the solvent by rotary evaporation to obtain the dihydroxy intermediate;
[0050] S12. Add 0.1 mol of dihydroxyl intermediate and 100 mL of anhydrous dichloromethane into a three-necked flask with a tail gas treatment device, stir evenly, drop 0.35 mol of thionyl chloride in drops at a rate of 1 drop / second, and use 1 M hydrogen The tail gas was treated with 150 mL of sodium oxide solution, the reaction was stirred in an ice-water bath for 5 h, then suction filtered, washed twi...
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