Moisture-absorbing and sweat-releasing polyester fibre and preparation method thereof
A polyester fiber, moisture absorption and sweat-wicking technology, applied in the field of polyester fiber, can solve the problems of not being able to meet the processing requirements of PET waste, difficulty in dyeing polyester fiber, poor dyeing performance, and recycling, so as to improve the natural degradation rate, Effect of shortening the dyeing time and increasing the free volume of cavities
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Embodiment 1
[0066] A preparation method for moisture-absorbing and sweat-wicking polyester fiber, the steps are as follows:
[0067] (1) prepare modified polyester;
[0068] (1.1) Preparation of doped modified ZrO 2 Powder;
[0069] (1.1.1) Mg(NO 3 ) 2 Aqueous solution with concentration of 22wt% ZrO 2 The solution is mixed evenly, ZrO 2 The solvent of the solution is nitric acid, the Mg in the mixture 2+ with Zr 4+ The mol ratio is 6:100;
[0070] (1.1.2) Add dropwise ammonia water with a concentration of 2 mol / L until the pH value of the mixed solution is 9 to obtain a precipitated product, wash and dry the precipitated product, the drying temperature is 108°C, and the drying time is 2.5 hours;
[0071] (1.1.3) Heat the dried product to 400°C and keep it warm for 2.5h, then heat it up to 700°C and keep it warm for 1.5h, and finally cool it in air and pulverize it to obtain doped modified ZrO with a particle size of 0.4 microns 2 Powder;
[0072] (1.2) Preparation of 2,2,5,5-te...
Embodiment 2
[0092] A preparation method for moisture-absorbing and sweat-wicking polyester fiber, the steps are as follows:
[0093] (1) prepare modified polyester;
[0094] (1.1) Preparation of doped modified ZrO 2 Powder;
[0095] (1.1.1) LiNO with a concentration of 1wt% 3 Aqueous solution with concentration of 20wt% ZrO 2 The solution is mixed evenly, ZrO 2 The solvent of the solution is nitric acid, Li in the mixture + with Zr 4+ The molar ratio is 5:100;
[0096] (1.1.2) Add dropwise ammonia water with a concentration of 2 mol / L until the pH value of the mixed solution is 10 to obtain a precipitated product, wash and dry the precipitated product at a temperature of 105°C for 3 hours;
[0097] (1.1.3) Heat the dried product to 400°C and keep it warm for 2h, then heat it up to 700°C and keep it warm for 1h, and finally cool it in air and pulverize it to obtain doped modified ZrO with a particle size of 0.4 microns 2 Powder;
[0098] (1.2) Preparation of 2,2,5,5-tetramethyl-3,...
Embodiment 3
[0110] A preparation method for moisture-absorbing and sweat-wicking polyester fiber, the steps are as follows:
[0111] (1) prepare modified polyester;
[0112] (1.1) Preparation of doped modified ZrO 2 Powder;
[0113] (1.1.1) Zn(NO 3 ) 2 Aqueous solution with concentration of 25wt% ZrO 2 The solution is mixed evenly, ZrO 2 The solvent of the solution is nitric acid, Zn in the mixture 2+ with Zr 4+ The molar ratio is 8:100;
[0114] (1.1.2) Add dropwise ammonia water with a concentration of 2 mol / L until the pH value of the mixed solution is 10 to obtain a precipitated product, wash and dry the precipitated product, the drying temperature is 110°C, and the drying time is 2 hours;
[0115] (1.1.3) Heat the dried product to 400°C and keep it warm for 3 hours, then heat it up to 700°C and keep it warm for 2 hours, and finally cool it in air and pulverize it to obtain doped modified ZrO with a particle size of 0.4 microns 2 Powder;
[0116] (1.2) Preparation of 2,2,4,4...
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