A kind of preparation method of hemp-like fiber
A fiber and linen-like technology, which is applied in the field of preparation of linen-like fibers, can solve the problems of poor pilling performance, poor wear resistance, and easy fiber breakage, and achieve high-strength wear-resistant prices, improved reactivity, and increased compatibility. Effect
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Embodiment 1
[0026] A kind of preparation method of hemp-like fiber is characterized in that, comprises the following steps:
[0027] S1. dissolving the chopped cotton fiber in the aqueous solution of sodium hydroxide / urea, the mass ratio of sodium hydroxide, urea and water is 7:10:75, obtains cellulose solution;
[0028] S2. Filtrating the cellulose solution obtained in step S1 to obtain cellulose fibers, and aging the cellulose fibers for 10 hours to obtain aged cellulose fibers;
[0029] S3. Add the cellulose fiber prepared in step S2 to the mixed solution of liquid paraffin and Span-80, stir for a period of time, the stirring time is 2h, add hydrochloric acid solution, until the pH of the mixed solution is 7, after standing still, Separating the lower layer material to obtain cellulose microspheres;
[0030] S4. Sieve through a standard sieve to obtain cellulose microspheres with a particle size range below 40um, add the cellulose microspheres to the solution of anhydrous pyridine for...
Embodiment 2
[0034] A kind of preparation method of hemp-like fiber is characterized in that, comprises the following steps:
[0035] S1. dissolving the chopped cotton fiber in the aqueous solution of sodium hydroxide / urea, the mass ratio of sodium hydroxide, urea and water is 12:5:85, obtains cellulose solution;
[0036] S2. Filtrating the cellulose solution obtained in step S1 to obtain cellulose fibers, and aging the cellulose fibers for 20 hours to obtain aged cellulose fibers;
[0037] S3. Add the cellulose fiber prepared in step S2 to the mixed solution of liquid paraffin and Span-80, stir for a period of time, the stirring time is 4h, add hydrochloric acid solution, until the pH of the mixed solution is 7, after standing, Separating the lower layer material to obtain cellulose microspheres;
[0038] S4. Sieve through a standard sieve to obtain cellulose microspheres with a particle size range below 40um, add the cellulose microspheres to the solution of anhydrous pyridine for ultra...
Embodiment 3
[0042] A kind of preparation method of hemp-like fiber is characterized in that, comprises the following steps:
[0043] S1. dissolving chopped cotton fiber in the aqueous solution of sodium hydroxide / urea, sodium hydroxide, the mass ratio of urea and water is 9:6:78, obtains cellulose solution;
[0044]S2. Filtrating the cellulose solution obtained in step S1 to obtain cellulose fibers, and aging the cellulose fibers for 12 hours to obtain aged cellulose fibers;
[0045] S3. Add the cellulose fiber prepared in step S2 to the mixed solution of liquid paraffin and Span-80, stir for a period of time, the stirring time is 3h, add hydrochloric acid solution, until the pH of the mixed solution is 7, after standing, Separating the lower layer material to obtain cellulose microspheres;
[0046] S4. Sieve through a standard sieve to obtain cellulose microspheres with a particle size range below 40um, add the cellulose microspheres to the solution of anhydrous pyridine for ultrasonic ...
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