Preparation method of multifunctional environment-friendly flame-retardant wall fabric
A multi-functional and environmentally friendly technology, which is applied in the manufacture of fire-resistant and flame-retardant filaments, flame-retardant fibers, and rayon, can solve the problems of endangering the life safety of indoor personnel, poor flame-retardant performance, and single function, and achieve improved flame-retardant Combustibility, increased compatibility, and broad application prospects
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preparation example Construction
[0039] Preparation of the mixture:
[0040] After mixing 3: Weigh bamboo fiber into the pulverizer, the pulverized product and a concentration of 0.5mol / L sodium hydroxide solution and a concentration of 0.3mol / L potassium permanganate solution a mass ratio of 1:10 into the water bath, stirred and mixed to obtain a mixture;
[0041] Pretreatment of bamboo fiber prepared:
[0042] Water bath temperature to rise above 80 ~ 85 ℃, thermal pre-oxidation treatment 1 ~ 2h, after pre-oxidation treatment was separated by filtration to obtain residue, and the resulting residue concentration of 1mol / L magnesium chloride solution a mass ratio of 1: 5 mixture after shaking the reaction placed on a shaker for 20 ~ 30min separated by filtration to obtain residue;
[0043] The residue obtained above and deionized water mass ratio of 1:12 mixed into the high temperature and high pressure autoclave at a pressure of 1.2 ~ 1.5MPa, the temperature is 210 ~ 220 ℃ heat treatment at high temperatur...
example 1
[0051] Preparation of the mixture:
[0052] After mixing 3: Weigh bamboo fiber into the pulverizer, the pulverized product and a concentration of 0.5mol / L sodium hydroxide solution and a concentration of 0.3mol / L potassium permanganate solution a mass ratio of 1:10 into the water bath, stirred and mixed to obtain a mixture;
[0053] Pretreatment of bamboo fiber prepared:
[0054]Elevated by the above water bath cope temperature to 80 ° C, the preservation pre-oxidation treatment is 1 h, the pre-oxidation treatment is completed, and the filter residue is separated. After 20 min, the oscillation reaction was filtered, separated from the filter residue;
[0055] After mixing the filter residue and deionized water, it was mixed with a mass ratio of 1:12, and the pressure was 1.2 MPa, the temperature was 1.2 MPa, the temperature was 210 ° C, and the test was filtered after the treatment was completed, that is, For pre-treatment of bamboo fibers;
[0056] Preparation of modified bam...
example 2
[0063] Preparation of the mixture:
[0064] It is known that the bamboo fiber is pulverized into the pulverizer, and the sodium hydroxide solution of the pulverized product and the concentration of 0.5 mol / L and the potassium permanganate solution having a concentration of 0.3 mol / L are 1: 10: 3. In the water bath, stir mixed to give a mixture;
[0065] Preparation of bamboo fibers:
[0066] Rising the above water bath cope temperature to 83 ° C, the preservation pre-oxidation treatment 2 h, the pre-oxidation treatment ends after filtration separation to obtain the filter residue, the magnesium chloride solution obtained by the filter residue and the concentration of 1 mol / L is mixed in mass ratio of 1: 5, placed on shake After 25min after 25min, the oscillation reaction was filtered, separated from the filter residue;
[0067] After mixing the surface of the filter residue and deionized water, it was placed in a high temperature and high pressure reactor after a mass ratio ...
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