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A simple and efficient preparation method of fabric anti-ultraviolet coating
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An anti-ultraviolet coating and fabric technology, applied in coatings, radiation-absorbing coatings, textiles and papermaking, etc., can solve the problems of long time, high vacuum conditions, loss of insulation of fiber fabrics, etc., to reduce production costs, preparation Simple configuration and excellent UV resistance
Active Publication Date: 2018-05-11
GUIZHOU UNIV
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Problems solved by technology
[0004] At present, the method for improving the UV aging resistance of aramid fiber is mainly to utilize the sol-gel method, such as the titanium dioxide modified methyl silicone resin aramidfiber coating disclosed in CN103898767A. It takes 4-6 hours for the glue reaction, and 5-10 hours for the modified silicone resin and curing. The process is complicated and time-consuming
The second is the mixed spinning method, that is, adding an ultraviolet absorber to the fiber spinning solution, but the added ultraviolet absorber often affects the crystallinity of the fiber, so that the bulk strength of the prepared fiber is greatly reduced
Zinc oxide sol is prepared in CN101012621A, and zinc oxide nano crystal seeds are deposited on the fiber surface by dipping, drying, and baking. During this deposition process, nano-scale zinc oxide will agglomerate, so that the final particles no longer maintain nano-scale, zinc oxide crystals The distribution of seeds on the fiber surface is not uniform, and the zinc oxide particles deposited by this method are easy to fall off
The 3rd, ion sputter coating on fiber surface, as CN1970882A adopts magnetron sputtering coating machine to coat metal coating on fiber surface, the fiber fabric that this method handles loses insulation, and needs higher vacuum condition during processing, Not conducive to industrial mass production
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Embodiment 1
[0031] Embodiment 1: a kind of preparation method of simple and efficient fabric anti-ultraviolet coating comprises the steps:
[0032] (1) Immerse the aramid fiber or nylon fiber in a zinc chlorideethanol solution with a mass fraction of 30%, ultrasonically treat it for 3 minutes at an ultrasonic power of 600W, take out the aramid fiber, wash it with water until the residual zinc chloride is removed, and then bake it at 50°C Dry;
[0033] (2) Make a mixed solution of zinc nitrate and sodiumhydroxide in a molar ratio of 1:1, then put the dried aramid fiber into the mixed solution, and keep it in the reaction kettle for 1 hour at a temperature of 80°C;
[0034] (3) Take out the aramid fiber in the reaction kettle, wash it with water, and then dry it.
Embodiment 2
[0035] Embodiment 2: a kind of preparation method of simple and efficient fabric anti-ultraviolet coating comprises the steps:
[0036] (1) Immerse the nylon fiber in a zinc chloride ethanol solution with a mass fraction of 5%, ultrasonically treat it for 10 minutes at an ultrasonic power of 600W, take out the nylon fiber, wash it with water until the residual zinc chloride is removed, and then dry it at 40°C;
[0037] (2) Zinc gluconate and sodiumhydroxide are formulated into a mixed solution at a molar ratio of 1:0.5, and then the dried nylon is put into the mixed solution, and kept in the reaction kettle for 2 hours at a temperature of 70°C;
[0038] (3) Take out the nylon in the reactor, wash it with water, and then dry it.
Embodiment 3
[0039] Embodiment 3: a kind of preparation method of simple and efficient fabric anti-ultraviolet coating comprises the following steps:
[0040] (1) Immerse the aramid fiber in a zinc chloride ethanol solution with a mass fraction of 50%, ultrasonically treat it for 30 minutes at an ultrasonic power of 600W, take out the aramid fiber, wash it with water until the residual zinc chloride is removed, and then dry it at 60°C;
[0041] (2) Make a mixed solution of zinc acetate and sodium hydroxide in a molar ratio of 1:1.5, then put the dried aramid fiber into the mixed solution, and keep it in the reaction kettle for 5 hours at a temperature of 90°C;
[0042] (3) Take out the aramid fiber in the reaction kettle, wash it with water, and then dry it.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract
The invention discloses a simple and efficient preparation method of a fabric ultraviolet resistant coating. The method comprises the steps of: (1) immersing a fabric into a zincchlorideethanol solution, conducting ultrasonic treatment, then taking out the fabric, performing rinsing with water to remove residual zincchloride, and then conducting drying; (2) making a zinc salt and sodiumhydroxide into a mixed solution, then putting the dried fabric into the mixed solution, and conducting thermal insulation in a reaction kettle; and (3) taking out the fabric out of the reaction kettle, performing cleaning with water, and then conducting drying. The method provided by the invention has the characteristics of simple preparation and short time, the zinc oxide on the fiber surface maintains a nano size and is uniformly distributed, the nano zinc oxide combine closely with the fiber and is not easy to fall off, a zinc oxideseed crystal is generated in situ on the fiber surface by means of the solution system, and the reacted solution can be recycled.
Description
technical field [0001] The invention relates to a preparation method of a fabric anti-ultravioletcoating, in particular to a simple and efficient preparation method of a fabric anti-ultravioletcoating. Background technique [0002] In recent years, with the improvement of people's living standards, people's requirements for clothing are getting higher and higher. High-grade, comfortable textiles with anti-ultraviolet, antibacterial, self-cleaning and other functions are more and more favored by consumers. [0003] ZnO is a multifunctional semiconductor material with excellent shielding and protection against ultraviolet rays. When the particle size of these materials is equal to or smaller than that of light waves, due to the small size effect, the light absorption is significantly enhanced, and the particles with small particle sizes have strong scattering ability and good shielding effect. Therefore, zinc oxide nanopowder can attenuate ultraviolet rays, especially ultr...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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