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Method for preparing composite water-absorbing antibacterial material

A technology of antibacterial materials and composite fibers, applied in textiles, papermaking, non-woven fabrics, etc., can solve the problems of lack of antibacterial and bactericidal properties of water-absorbent materials, poor salt resistance of superabsorbent materials, and generation of pathogenic bacteria, etc., to achieve excellent results Broad-spectrum antibacterial properties, strong water absorption performance, and uniform water absorption effect

Active Publication Date: 2018-05-04
北京安信乐布医疗用品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the wide application of superabsorbent materials in various fields such as personal hygiene products, industrial and agricultural production, and civil construction, people have more and more requirements for superabsorbent materials in terms of water absorption, water retention, salt resistance and antibacterial properties. However, most of the existing superabsorbent materials have the following problems: 1. The salt resistance of ionic superabsorbent materials is not good; 2. Non-ionic superabsorbent materials have fast water absorption and poor salt tolerance The ionic type is good, but its water absorption performance is poor; 3. The water absorption material lacks antibacterial and bactericidal properties, and may produce pathogenic bacteria after long-term use; Preparation of excellent water-absorbing materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A preparation method of a composite water-absorbing antibacterial material, comprising the steps of:

[0024] Step 1): take platycodon grandiflorum as natural fiber material, after being pulverized by a pulverizer, get the fiber material of 40 mesh sieves, wash three times with distilled water at normal temperature, then wash twice with the ethanol that volume concentration is 80%, to remove the fiber material in the fiber. impurities, and then dried at 60°C for later use;

[0025] Step 2): Mix the polyethylene / polypropylene two-component thermoplastic composite fiber with the dried natural fiber material in step 1), open the mixed fiber material after mixing, and then card the mixed fiber material to form a fluffy net shape structure;

[0026] Step 3): adding silver nitrate and sodium chloride dropwise into the aqueous surfactant solution, and stirring in the dark to obtain a dispersion liquid; then adding tetraethyl orthosilicate dropwise, stirring in the dark to obt...

Embodiment 2

[0030] A preparation method of a composite water-absorbing antibacterial material, comprising the steps of:

[0031] Step 1): take ginseng as the natural fiber material, after pulverizing by a pulverizer, take the fiber material of 50 mesh sieve, wash it three times with distilled water at normal temperature, and then wash twice with ethanol with a volume concentration of 80%, to remove the fiber Impurities in the mixture were dried at 60°C for later use;

[0032] Step 2): Mix the polyethylene / polyester two-component thermoplastic composite fiber with the dried natural fiber material in step 1), open the mixed fiber material after mixing, and then card the mixed fiber material to form a fluffy net shape structure;

[0033] Step 3): adding silver nitrate and sodium chloride dropwise into the aqueous surfactant solution, and stirring in the dark to obtain a dispersion liquid; then adding tetraethyl orthosilicate dropwise, stirring in the dark to obtain a reaction liquid;

[00...

Embodiment 3

[0037] A preparation method of a composite water-absorbing antibacterial material, comprising the steps of:

[0038] Step 1): take Houttuynia cordata as natural fiber material, after pulverizing by a pulverizer, get the fiber material of 60 mesh sieve, wash three times with distilled water at normal temperature, then wash twice with the ethanol that volume concentration is 80%, to remove fiber Impurities in the mixture were dried at 60°C for later use;

[0039] Step 2): Mix the polyethylene / polypropylene two-component thermoplastic composite fiber with the dried natural fiber material in step 1), open the mixed fiber material after mixing, and then card the mixed fiber material to form a fluffy net shape structure;

[0040] Step 3): adding silver nitrate and sodium chloride dropwise into the aqueous surfactant solution, and stirring in the dark to obtain a dispersion liquid; then adding tetraethyl orthosilicate dropwise, stirring in the dark to obtain a reaction liquid;

[0...

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Abstract

The invention provides a method for preparing a composite water-absorbing antibacterial material. The method comprises the following steps: step 1, using an antibacterial Chinese medicinal material asa natural fiber material, smashing and sieving, removing impurities from fibers and drying as standby application; step 2, mixing thermoplastic composite fibers with the natural fiber material driedin step 1, and performing opening treatment to form a fluffy network structure; step 3, preparing silver nitrate and sodium chloride reaction solution; step 4, centrifuging the reaction solution, washing with alcohol and drying to obtain nanocomposite antibacterial particles; step 5, adding polymer water-absorbent resin particles, the nanocomposite antibacterial particles and Foshi powder into meshes of mesh structures of mixed fibers, blowing hot air to the mesh structures and cooling to obtain the composite water-absorbing antibacterial material. According to the composite water-absorbing antibacterial material, the polymer water-absorbent resin particles, the antibacterial particles and the like are fixed in the meshes formed by means of intertwining the mixed fibers, so that the composite water-absorbing antibacterial material has excellent water absorption, and antibacterial and bactericidal properties.

Description

technical field [0001] The invention belongs to the technical field of water-absorbing materials, and in particular relates to a preparation method of a composite water-absorbing and antibacterial material. Background technique [0002] With the wide application of superabsorbent materials in various fields such as personal hygiene products, industrial and agricultural production, and civil construction, people have more and more requirements for superabsorbent materials in terms of water absorption, water retention, salt resistance and antibacterial properties. However, most of the existing superabsorbent materials have the following problems: 1. The salt resistance of ionic superabsorbent materials is not good; 2. Non-ionic superabsorbent materials have fast water absorption and poor salt tolerance The ionic type is good, but its water absorption performance is poor; 3. The water absorption material lacks antibacterial and bactericidal properties, and may produce pathogeni...

Claims

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Application Information

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IPC IPC(8): D04H1/407D04H1/413D04H1/541
CPCD04H1/407D04H1/413D04H1/541
Inventor 许飞扬
Owner 北京安信乐布医疗用品有限公司
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