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Environment-friendly antibacterial polyester material and preparation method thereof

A polyester material and an environmentally friendly technology, applied in the direction of single-component polyester rayon, rayon manufacturing, fiber chemical characteristics, etc., can solve the performance without any description, bacteria resistance, low sterilization rate and efficiency and other problems, to achieve the effect of being suitable for industrial production, reducing the probability of broken wires, and high production efficiency

Active Publication Date: 2014-11-19
HANGZHOU CHANGXIANG CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Organic antibacterial agents have strong antibacterial pertinence, good short-term sterilization, and have little effect on fiber drawing, but they have poor heat resistance, are easy to hydrolyze, have a short validity period, and are prone to drug resistance to bacteria
(3) Natural antibacterial agents: mainly from natural animal and plant extractions, such as chitosan, mustard, castor oil, wasabi, etc., which are easy to use, environmentally friendly and safe, but have limited antibacterial effects, poor heat resistance, and low sterilization efficiency
It only combines the antibacterial effect of nano-zinc oxide or silver with the deodorization, far-infrared rays and negative ions of bamboo charcoal, and does not make any description of other properties of bamboo charcoal

Method used

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  • Environment-friendly antibacterial polyester material and preparation method thereof
  • Environment-friendly antibacterial polyester material and preparation method thereof
  • Environment-friendly antibacterial polyester material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The preparation method of the modified composite antibacterial agent is as follows: 10 kg of chitosan (deacetylation degree 85%, viscosity 0.55 Pa s) was dissolved in 90 kg of acetic acid aqueous solution with a concentration of 1% by mass, aged at 45 °C for 24 h, To obtain a chitosan solution; add 4kg of bamboo charcoal with an average particle size of 275nm and 1kg of nano-zinc oxide with an average particle size of 60nm (the weight ratio of bamboo charcoal to nano-zinc oxide is 4:1) into the chitosan solution, and stir well , to obtain a suspension, quickly cool down to 2°C within 5 minutes, let it stand for 8h, filter under reduced pressure, and dry the filtered product at 80°C to obtain 9.992kg of black powder (among them, 4.992kg of chitosan, 4kg of bamboo charcoal, Nano-zinc oxide 1kg); 9.992kg of black powdery substance was added to a high-speed mixer (5000 rpm), sprayed into 0.4kg of misty tris(dioctylpyrophosphoryloxy) isopropyl titanate alcohol water Mixed so...

Embodiment 2

[0049] The preparation method of the modified composite antibacterial agent is as follows: dissolve 7.5kg of chitosan (deacetylation degree 85%, viscosity 0.55Pa s) in 142.5kg of acetic acid aqueous solution with a concentration of 1% by mass, and mature at 35°C After 28 hours, chitosan solution was obtained; 5.5kg of bamboo charcoal with an average particle size of 275nm and 0.5kg of nano-zinc oxide with an average particle size of 60nm (the weight ratio of bamboo charcoal to nano-zinc oxide was 11:1) were added to the chitosan solution , fully stirred to obtain a suspension, rapidly cooled to 2°C within 5 minutes, left to stand for 8h, and filtered under reduced pressure, and the filtered product was dried at 80°C to obtain 9.99kg of black powder (among them, chitosan 3.99kg, Bamboo charcoal 5.5kg, nano-zinc oxide 0.5kg); 9.99kg of black powdery substance was added to a high-speed mixer (5000 rpm), sprayed into 0.5kg of misty tris(dioctylpyrophosphoryloxy)titanic acid Isopro...

Embodiment 3

[0052] The preparation method of the modified composite antibacterial agent is as follows: 25.1 kg of chitosan (deacetylation degree 95%, viscosity 0.62 Pa s) is dissolved in 254 kg of acetic acid aqueous solution with a concentration of 1% by mass, and matured at 45 ° C for 20 h , to obtain a chitosan solution; 14.4kg of bamboo charcoal with an average particle size of 250nm and 2.4kg of nano-zinc oxide with an average particle size of 50nm (the weight ratio of bamboo charcoal to nano-zinc oxide is 6:1) was added to the chitosan solution, Stir fully to obtain a suspension, quickly cool down to 5°C within 3 minutes, let stand for 8h, filter under reduced pressure, and dry the filtered product at 80°C to obtain 29.97kg of black powder (among them, 13.17kg of chitosan, bamboo charcoal 14.4kg, nano-zinc oxide 2.4kg); 29.97kg of black powdery substance was added to a high-speed mixer (5000 rpm), sprayed into 1kg of sprayed di(methacryloyl) isostearyl titanate isopropyl Ester alcoh...

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Abstract

The invention discloses an environment-friendly antibacterial polyester material and a preparation method thereof. The environment-friendly antibacterial polyester material is prepared from the following raw materials according to weight percent: 95%-99.9% of first polyesters and 0.1%-5% of antibacterial masterbatches, wherein the antibacterial masterbatches are prepared from the following raw materials according to weight percent: 60%-80% of second polyesters and 20%-40% of a modified compound antibacterial agent; and the first and second polyesters are the same or different. The environment-friendly antibacterial polyester has good antibacterial performance and high breaking strength. The preparation method of the environment-friendly antibacterial polyester material comprises the steps of mixing the modified compound antibacterial agent with the second polyesters uniformly, then extruding, granulating and slicing the mixture to obtain the antibacterial masterbatches, drying the antibacterial masterbatches, then blending the dried antibacterial masterbatches with the first polyesters, and finally, extruding, melt-spinning and winding the mixture, thus obtaining the environment-friendly antibacterial polyester material. The method is simple to operate and easy to control.

Description

technical field [0001] The invention relates to the field of functional synthetic fibers, in particular to an environment-friendly antibacterial polyester material and a preparation method thereof. Background technique [0002] As the world's population continues to grow and living standards improve, the demand for textiles and clothing and packaging is increasing. Due to the increasingly fierce competition for land and other issues such as grain and cotton, natural fibers have been difficult to meet people's living needs, and synthetic fibers account for an increasing proportion of global fiber consumption. Compared with other synthetic fiber materials, polyester materials have high versatility, excellent physical and mechanical properties, low cost of raw materials, mature industrial technology, and increasing single-line production capacity. These factors make polyester The application of (such as polyester) fibers is becoming more and more extensive, and the demand is a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/02C08K9/04C08K9/06C08K3/04C08K3/22C08J3/22D01F6/92D01F1/10
Inventor 韩建国陶何樑韩国富周箭
Owner HANGZHOU CHANGXIANG CHEM FIBER