Preparation method of bactericidal polyester fibers
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A technology of polyester fiber and bactericide, which is applied in the field of preparation of bactericidal polyester fiber, can solve the problems of easy drop, insufficient bactericidal effect, uneven distribution of silver in silver fiber, etc., achieve strong bactericidal ability, improve bactericidal efficiency, and particle size small effect
Inactive Publication Date: 2018-07-10
绵阳市聚合新材料有限公司
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Problems solved by technology
[0004] In the prior art, silver fibers used in water treatment have problems such as uneven distribution of silver, easy falling, and insufficient bactericidal effect.
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
[0024] 1) After the 0.2mol / L silver nitrate solution is activated, add concentrated ammonia and hydrogen peroxide, and shake the reaction in a constant temperature shaking box at 45°C. The metal precipitates are filtered and dried in an oven at 100°C for 4 hours;
[0025] 2) Mix the silver powder prepared in step 1) with the dispersant, the bactericide composed of alkyl quaternary phosphonium salt and quaternary ammonium salt, and activated carbon to make a sterilization mixture. The weight percentage of each component of the sterilization mixture is: silver powder 2%, dispersion 1% of bactericide, 1% of bactericide, 1% of activated carbon;
[0026] 3) After the sterilization mixture and the polyester fiber raw material are melted and blended at high temperature, they are processed by a screw extruder to obtain a spinning melt;
[0027] 4) The spinning melt obtained in step 3) is subjected to injection drawing processing by an injection molding machine, heat-setting and drying are pe...
Embodiment 2
[0030] 1) After the activation treatment of 0.3mol / L silver nitrate solution, add concentrated ammonia and hydrogen peroxide, and oscillate the reaction in a constant temperature shaking box at 45°C. The metal precipitates generated are filtered and dried in an oven at 100°C for 4 hours;
[0031] 2) Mix the silver powder prepared in step 1) with the dispersant, the bactericide composed of alkyl quaternary phosphonium salt and quaternary ammonium salt, and activated carbon to make a sterilization mixture. The weight percentage of each component of the sterilization mixture is: silver powder 4%, dispersion 2% of bactericide, 1% of bactericide, 1% of activated carbon;
[0032] 3) After the sterilization mixture and the polyester fiber raw material are melted and blended at high temperature, they are processed by a screw extruder to obtain a spinning melt;
[0033] 4) The spinning melt obtained in step 3) is subjected to injection drawing processing by an injection molding machine, heat-...
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 preparation method of bactericidal polyester fibers; raw materials comprise a polyester fiber raw material, a bactericide, a silver powder and activated carbon; the bactericidal polyester fiber is prepared by the following steps: mixing the prepared silver powder with a dispersant, the bactericide and activated carbon to obtain a bactericidal mixture, wherein the bactericidal mixture comprises the components by the weight percentage: 2-4% of silver, 1-2% of the dispersant, 1-2% of the bactericide and 1-2% of activated carbon; carrying out high temperature melting blending of the bactericidal mixture and the polyester fiber raw material, and treating by a screw extruder to obtain a spinning melt; and finally, carrying out injection molding wire drawing treatment ofthe spinning melt body by an injection molding machine, carrying out heat setting at the temperature of 120-140 DEG C, and drying to obtain the finished product bactericidal polyester fibers. The invention provides the preparation method of the bactericidal polyester fibers. The nanosilver particles are exposed to the polyester fiber surface, so the polyester fibers have a bactericidal effect; and the dispersant makes the nanosilver more evenly exposed on the polyester fiber surface, the bactericidal efficiency is improved, and the bactericidal polyester fibers have great promotion value in the water treatment application.
Description
Technical field [0001] The invention belongs to the field of sewage treatment and relates to a preparation method of sterilized polyester fiber. Background technique [0002] With the continuous economic development and population growth, water shortages have become restrictive factors restricting my country's further development. In order to achieve sustainable development, the recycling of sewage has become the key to achieving this goal. The quality of sewage effluent treated by existing sewage treatment technology has certain limitations. The sewage contains a large number of bacteria and viruses, which is extremely harmful to human health. Microbes in the water are the main cause of diseases. [0003] Silver ions and silver-containing compounds can kill or inhibit viruses, bacteria, etc. Nano silver has broad-spectrum antibacterial properties. The smaller the particle size, the stronger the sterilization performance. Silver can react with bacteria or virus cells in -SH, -COOH...
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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