A kind of preparation method of cotton stalk fiber
A cotton stalk skin and fiber technology, which is applied in the field of cotton stalk skin fiber preparation, can solve the problems of complex process, high alkali consumption, long time, etc., and achieves the effects of high degumming rate, high fiber performance and small fiber damage.
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Embodiment 1
[0023] The cotton stalk skin is removed, tied, and caged, and then soaked in sulfuric acid solution at a bath ratio of 1:10, in which the concentration of sulfuric acid is 5g / L, treated at room temperature for 20 minutes, and then heated at 1°C per minute Heat to 40°C for 10min, then heat to 60°C at a heating rate of 1°C per minute, and then treat for 10min; after completion, wash with water to neutral and perform ultrasonic treatment for 15min, but then soak the cotton stalk skin in a sulfuric acid solution. The ratio is 1:10, where the concentration of sulfuric acid is 3-5g / L, and the temperature rise rate is 1°C per minute to 40°C for 20 minutes. Followed by scouring, the concentration of hydrogen peroxide is 30% hydrogen peroxide 35g / L, sodium borohydride 3g / L, EDTA 3g / L, sodium pyrophosphate 1g / L, ethylene glycol monobutyl ether 2g / L, and the temperature rises at 1℃ per minute. The rate is increased to a temperature of 95-100°C, and the treatment time is 45 minutes. Furth...
Embodiment 2
[0025] The cotton stalk skin is decontaminated, tied, and caged, and then the cotton stalk skin is soaked in sulfuric acid solution at a bath ratio of 1:15, in which the concentration of sulfuric acid is 3g / L, treated at room temperature for 20 minutes, and then every minute Heating rate of 1°C to 40°C for 10min, then heating rate of 1°C per minute to 60°C, and treatment for 10min; after completion, wash with water to neutral and ultrasonic treatment for 10min, then soak the cotton stalk skin in sulfuric acid In the solution, the bath ratio is 1:15, and the concentration of sulfuric acid is 3g / L. The temperature is raised to 40°C at a temperature rise rate of 1°C per minute for 20 minutes. Followed by scouring, the concentration of hydrogen peroxide is 30% hydrogen peroxide 30g / L, sodium borohydride 2g / L, EDTA 2g / L, sodium pyrophosphate 1g / L, ethylene glycol monobutyl ether 1g / L, and the temperature rises at 1℃ per minute. The rate was raised to a temperature of 95°C, and the t...
Embodiment 3
[0027] The cotton stalk skin is removed, tied, and caged, and then the cotton stalk skin is soaked in a sulfuric acid solution at a bath ratio of 1:15, in which the concentration of sulfuric acid is 5g / L, treated at room temperature for 20 minutes, and then every minute Heating rate of 1°C to 40°C for 10min, then heating rate of 1°C per minute to 60°C, and treatment for 10min; after completion, wash with water to neutral and ultrasonic treatment for 15min, then soak the cotton stalk skin in sulfuric acid In the solution, the bath ratio is 1:15, the concentration of sulfuric acid is 5g / L, and the heating rate is 1°C per minute to 40°C for 20 minutes. Followed by scouring, the concentration of hydrogen peroxide is 30% hydrogen peroxide 40g / L, sodium borohydride 2g / L, EDTA 3g / L, sodium pyrophosphate 2g / L, ethylene glycol monobutyl ether 2g / L, and the temperature rises at 1℃ per minute. The rate is heated to a temperature of 100°C, and the treatment time is 45 minutes. Further, th...
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