Sun-screening cool fiber and preparation method thereof
A fiber and cool-feeling technology, applied in the field of sunscreen cooling-feeling fibers and their preparation, can solve the problems of poor air permeability of fabrics, uneven functions, complicated manufacturing processes, etc., and achieve the effect of improving thermal conductivity
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[0019] The invention provides a preparation method of sun-proof and cool-feeling fiber, the specific steps are as follows:
[0020] 1) Preparation of core material: put bamboo powder particles in a soaking tank, ultrasonically soak for 5-45min, filter, steam blast the soaked bamboo powder for 40-200s, discharge, dry, and then dry the dried Bamboo powder, nano-ZnO and surfactant are ground, modified and mixed, and finally the mixture and polyamide chips are melt-blended, extruded and granulated to obtain the core material;
[0021] 2) Preparation of skin material: Nano-ALN, TiO 2 Stir and mix with the cross-linking agent and ultrasonically disperse for 10-30 minutes, add the dispersed mixture to the chain extender, ultrasonically disperse for 5-20 minutes, add the chain extender mixture to the polyurethane prepolymer, cast the belt and cut into pellets to obtain Leather;
[0022] 3) Melt spinning: the prepared core material and skin material are dried, melted, homogenized, ec...
Embodiment 1
[0024] Optional embodiment 1, the present invention provides a method for preparing sunscreen and cooling fiber, the specific steps are as follows:
[0025] 1) Preparation of core material: put bamboo powder particles with a particle size of 1-3mm in a soaking tank, add water, and then perform ultrasonic soaking for 25min at a power of 50-80w and a frequency of 20kHz. The mechanical and thermal effects of ultrasound will affect the bamboo powder particles Destroy the fibrous structure of the bamboo powder, improve the surface energy of the bamboo powder, and improve the efficiency of subsequent modification. Filtration, place the soaked bamboo powder in the reaction tank, and pass steam into it until the tank pressure reaches 1.5Mpa, and keep the pressure for steam Explosive treatment for 150s, open the air pressure valve at the discharge port, and discharge the material. The steam explosion method treats the bamboo powder. Under the action of high pressure and water vapor, the...
Embodiment 2
[0040] Optional embodiment 2: On the basis of the research of optional embodiment 1 and comparative experiment 1-7, the present invention provides a kind of preparation method of sun-proof cool feeling fiber, and specific steps are as follows:
[0041] 1) Preparation of core material: put bamboo powder particles with a particle size of 1-3mm in a soaking tank, add water, and then conduct ultrasonic soaking at a power of 50-80w and a frequency of 20kHz for 45min until the tank pressure reaches 0.3Mpa, and keep the pressure. Steam explosion treatment 400s, open the air pressure valve of discharge port, discharge, then bamboo powder and nanometer ZnO are placed in high-speed grinder as 1:1 and surfactant (sodium dodecyl sulfonate) by mass ratio, The amount of surfactant added is 0.2-1.2% of the total amount of bamboo powder and nano-ZnO. Grinding, modification and mixing are carried out at a rotating speed of 1500r / min. Finally, the mixture and polyamide chips are melt-blended, an...
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Abstract
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