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Simple and efficient preparation method of fabric ultraviolet resistant coating
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A technology for anti-ultraviolet coatings and fabrics, applied in coatings, radiation-absorbing coatings, textiles and papermaking, etc., can solve the problems of long time consumption, high vacuum conditions, loss of insulation of fiber fabrics, etc., to reduce production costs and prepare Simple configuration and good UV resistance
Active Publication Date: 2016-12-21
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] Example 1: A simple and efficient preparation method of fabric anti-ultraviolet coating, including the following steps:
[0032] (1) Dip the aramid fiber or nylon into a 30% zinc chlorideethanol solution, ultrasonically treat it with an ultrasonic power of 600W for 3 minutes, take out the aramid fiber, wash with water to remove residual zinc chloride, and then bake it at 50°C dry;
[0033] (2) Prepare a mixed solution of zinc nitrate and sodiumhydroxide at a molar ratio of 1:1, then put the dried aramid into the mixed solution, and keep it in the reactor for 1 hour at a temperature of 80°C;
[0034] (3) Take out the aramid fiber from the reactor, wash it with water, and then dry it.
Embodiment 2
[0035] Example 2: A simple and efficient preparation method of fabric anti-ultraviolet coating, including the following steps:
[0036] (1) Dip the nylon into an ethanol solution of zinc chloride with a mass fraction of 5%, ultrasonically treat it with an ultrasonic power of 600W for 10 minutes, take out the nylon, wash with water to remove residual zinc chloride, and then dry it at 40°C;
[0037] (2) Prepare a mixed solution of zinc gluconate and sodiumhydroxide at a molar ratio of 1:0.5, then put the dried nylon into the mixed solution, and keep it in the reactor for 2 hours at a temperature of 70°C;
[0038] (3) Take out the nylon from the reactor, wash it with water, and then dry it.
Embodiment 3
[0039] Embodiment 3: A simple and efficient preparation method of fabric anti-ultraviolet coating, including the following steps:
[0040] (1) Dip the aramid fiber into a zinc chloride ethanol solution with a mass fraction of 50%, ultrasonically treat it with an ultrasonic power of 600W for 30 minutes, take out the aramid fiber, wash with water to remove the residual zinc chloride, and then dry it at 60°C;
[0041] (2) Prepare a mixed solution of zinc acetate and sodium hydroxide at a molar ratio of 1:1.5, then put the dried aramid fiber into the mixed solution, and keep it in the reactor for 5 hours at a temperature of 90°C;
[0042] (3) Take out the aramid fiber from the reactor, 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 method for preparing a fabric anti-ultravioletcoating, in particular to a simple and efficient method for preparing a fabric anti-ultravioletcoating. Background technique [0002] With the improvement of people's living standards in recent years, people's requirements for clothing have become higher and higher. High-end, comfortable, anti-ultraviolet, antibacterial, and self-cleaning textiles are increasingly popular among 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 the light wave, the light absorption is significantly enhanced due to the small size effect, and the small particle size particles have strong scattering ability and good shielding effect. Therefore, zinc oxide nano-powder can attenuate ultraviolet rays, especially ultraviolet rays with a wavelength of 280nm-3...
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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Application Information
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