High-strength flame-retardant antibacterial fabric and preparation method thereof

A kind of antibacterial fabric and high-strength technology, which is applied in the direction of flame-retardant fiber, biochemical fiber treatment, fiber type, etc., can solve the problems of worker injury, high air tightness requirements of formaldehyde processing equipment, and polluted environment, so as to prolong the service life , good photocatalytic antibacterial performance, simple preparation method

Inactive Publication Date: 2022-01-07
徐唐
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of formaldehyde for hydroxyl end-capping treatment has the problem of high airtightness requirements for the formaldehyde processing equipment. Even a small amount of formaldehyde leakage will pollute the environment and cause harm to the staff.

Method used

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  • High-strength flame-retardant antibacterial fabric and preparation method thereof
  • High-strength flame-retardant antibacterial fabric and preparation method thereof
  • High-strength flame-retardant antibacterial fabric and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] This embodiment provides a high-strength flame-retardant and antibacterial fabric, comprising the following steps:

[0037] (1) The preparation method of flame-retardant modified vinylon is as follows:

[0038] The reaction equation is as figure 1 shown.

[0039] S1. Adjust the formaldehyde solution to pH 8 with NaOH solution, add melamine, heat up to 75-85°C, react for 1h, add saturated sodium bicarbonate solution to quench the reaction, then add an equal volume of dichloromethane for extraction, take the oil phase, The solvent was removed under reduced pressure to obtain intermediate A; the ratio of methanol and melamine was 1:1;

[0040] S2. Dissolve intermediate A and 3-bromopropene in dichloromethane, heat to 70°C, add potassium carbonate, react for 3h, add saturated sodium bicarbonate solution to quench the reaction, take the organic phase, and remove the solvent under reduced pressure to obtain Intermediate B; the ratio of the amount of the intermediate A, 3-b...

Embodiment 2

[0049] This embodiment provides a high-strength flame-retardant and antibacterial fabric, comprising the following steps:

[0050] (1) The preparation method of flame-retardant modified vinylon is as follows:

[0051] The reaction equation is as figure 1 shown.

[0052] S1. Adjust the formaldehyde solution to pH 10 with NaOH solution, add melamine, heat up to 85°C, react for 2 hours, add saturated sodium bicarbonate solution to quench the reaction, then add an equal volume of dichloromethane for extraction, take the oil phase, and depressurize Remove the solvent to obtain intermediate A; the ratio of methanol and melamine is 1:1.1;

[0053] S2. Dissolve intermediate A and 3-bromopropene in chloroform, heat to 90°C, add potassium carbonate, react for 5h, add saturated sodium bicarbonate solution to quench the reaction, take the organic phase, and remove the solvent under reduced pressure to obtain Intermediate B; the ratio of the amount of the intermediate A, 3-bromopropene,...

Embodiment 3

[0060] This embodiment provides a high-strength flame-retardant and antibacterial fabric, comprising the following steps:

[0061] (1) The preparation method of flame-retardant modified vinylon is as follows:

[0062] The reaction equation is as figure 1 shown.

[0063] S1. Adjust the formaldehyde solution to pH 9 with NaOH solution, add melamine, heat up to 80°C, react for 1.5h, add saturated sodium bicarbonate solution to quench the reaction, then add an equal volume of dichloromethane for extraction, take the oil phase, and reduce The solvent is removed by pressure to obtain intermediate A; the ratio of the substance of the methanol and melamine is 1:1.05;

[0064] S2. Dissolve intermediate A and 3-bromopropene in toluene, heat to 80°C, add potassium carbonate, react for 4 hours, add saturated sodium bicarbonate solution to quench the reaction, take the organic phase, and remove the solvent under reduced pressure to obtain the intermediate B; the ratio of the amount of t...

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PUM

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Abstract

The invention provides a high-strength flame-retardant antibacterial fabric and a preparation method thereof, and belongs to the technical field of fabrics. The high-strength flame-retardant antibacterial fabric is prepared from flame-retardant modified vinylon, deionized water and tetraethyl titanate, wherein the flame-retardant modified vinylon is prepared from a flame retardant and vinylon through graft copolymerization; the chemical structural formula of the flame-retardant modified vinylon is shown in the specification; and n is equal to 100 to 500. According to the high-strength flame-retardant antibacterial fabric and the preparation method thereof provided by the invention, the flame-retardant modified vinylon is prepared by polymerizing and modifying the vinylon fibers and a prepared intermediate B, so that a branched chain part with rich nitrogen content is grafted to a vinylon molecular chain, and a very good flame-retardant modification effect is achieved.

Description

technical field [0001] The invention relates to the technical field of fabrics, in particular to a high-strength flame-retardant and antibacterial fabric and a preparation method thereof. Background technique [0002] With the development of society, people's requirements for fabrics are increasing, especially in special occasions. In the final analysis, the flame retardant performance of the fabric depends on the flame retardant performance of the fabric fibers. [0003] Flame-retardant fiber refers to the fiber that cannot burn or burns insufficiently after contact with the fire source, and only has a small flame. When the fire source is removed, the flame can extinguish itself quickly. Currently commonly used flame retardant fibers are: PBI fiber, PVC fiber, PTFE, PPTA, Prylanitz fiber, polyamide-imide fiber. Among them, Prylanitz fiber, because of its good hygroscopicity, does not melt under the action of radiant heat or flame, so it can be used in the water vapor barr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M13/364D06M11/46D06M101/24
CPCD06M13/364D06M11/46D06M16/00D06M2101/24D06M2200/30
Inventor 徐唐
Owner 徐唐
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