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A non-migration antibacterial cellulose-based foam and its preparation method

A cellulose-based, cellulose-based technology, applied in the field of non-migration antibacterial cellulose-based foam and its preparation, can solve problems such as difficulty in reducing, and achieve the effect of simple preparation process, broad-spectrum and high-efficiency antibacterial effect

Active Publication Date: 2020-02-07
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the problems of the prior art, and invents a kind of material cellulose which can be completely biodegradable as the base material of the foam, which is combined with rapid stirring of surfactant and antibacterial agent, and mixed with rapidly inhaled air at the same time, finally with Drying in a non-restrictive way under normal pressure to prepare low-density non-migration antibacterial cellulose-based foam overcomes the shortcomings of traditional foam plastics that are difficult to reduce and cause environmental pollution; a preparation method for fully degradable foam materials is obtained, which also gives foam materials Broad-spectrum high-efficiency and long-lasting antibacterial effect

Method used

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  • A non-migration antibacterial cellulose-based foam and its preparation method
  • A non-migration antibacterial cellulose-based foam and its preparation method
  • A non-migration antibacterial cellulose-based foam and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) take the following components in g: water 1800g, 200g solid content are bleached eucalyptus fiber pulp (containing 20g wood cellulose in it) of 10wt% solid content, 2g wet strength agent CPAM, 2g surfactant AOS, 0.2g cross-linking agent MBA and 2g antibacterial agent antibacterial thermoplastic starch granules, then mix the bleached eucalyptus fiber pulp and water and place it in the pulp fiber disintegrator, and disintegrate it for 20min at a speed of 2000r / min until the eucalyptus fiber is evenly dispersed In the water;

[0028] (2) Weigh the obtained wet strength agent, surfactant, cross-linking agent and antibacterial agent in step (1) and add them to the material obtained after decomposing in step (1), and mix and stir at a speed of 1000r / min with a mechanical stirrer 30min, then quickly pour it into a Buchner funnel covered with filter paper, remove most of the water and foam by suction filtration under a pressure of 5kPa, and dry the obtained wet cellulose fo...

Embodiment 2

[0030] (1) Take the following components in units of g: water 1800g, 200g solid content are 12wt% bleached bagasse fiber pulp (containing 24g wood cellulose), 2.4g wet strength agent PAE, 2.5g surfactant ABS , 0.3g cross-linking agent EGDMA and 0.6g guanidinium salt polymer macromonomer, then mix the bleached bagasse fiber pulp with water and place it in a pulp fiber disintegrating machine, and disintegrate it for 40min at a speed of 4000r / min until the bagasse fiber is evenly dispersed in water;

[0031] (2) Weigh the obtained wet strength agent, surfactant, cross-linking agent and antibacterial agent in step (1) and add them to the material obtained after decomposing in step (1), and mix and stir at a speed of 2000r / min with a mechanical stirrer 10min, and then quickly pour it into a Buchner funnel covered with filter paper, and remove most of the water and water foam by suction filtration under a pressure of 10kPa, and dry the obtained wet cellulose foam at 40°C for 24h, an...

Embodiment 3

[0033] (1) Take the following components in units of g: 1700g of water, 300g of sisal fiber pulp (containing 48g of wood cellulose) with a solid content of 16wt%, 2.4g of wet strength agent PEI, and 2.5g of surfactant AES , 0.3g cross-linking agent DCP and 2.5g quaternary ammonium salt polymer, then mix the sisal fiber slurry with water and place it in the pulp fiber disintegrator, and disintegrate it for 50min at a speed of 5000r / min until the sisal fiber is evenly dispersed In the water;

[0034](2) Weigh the obtained wet strength agent, surfactant, cross-linking agent and antibacterial agent in step (1) and add them to the material obtained after decomposing in step (1), and mix and stir at a speed of 2000r / min with a mechanical stirrer 25min, then quickly pour it into a Buchner funnel covered with filter paper, and remove most of the water and water foam by suction filtration under a pressure of 10kPa, and dry the obtained wet cellulose foam at 40°C for 24h, and the result...

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Abstract

The invention discloses migration-free antibacterial cellulose-based foam. The migration-free antibacterial cellulose-based foam is prepared from the following raw materials in parts by weight: 95 to 99 parts of water, 1 to 5 parts of cellulose, 0.1 to 0.3 part of a wet strengthening agent, 0.1 to 0.5 part of a surfactant, 0.01 to 0.2 part of a cross-linking agent and 0.03 to 0.2 part of an antibacterial agent. A migration-free antibacterial cellulose-based foam product is prepared through the following steps: mixing the weighed cellulose and water and defibering; (2) adding the wet strengthening agent, the surfactant, the cross-linking agent and the antibacterial agent, which are weighed in step (1), into a substance obtained by defibering; mixing and stirring, and filtering; drying for 8h to 48h at temperature in a range from room temperature to 60 DEG C. A preparation process of the migration-free antibacterial cellulose-based foam is simple and environmentally friendly; extra equipment is not needed and the product can be produced by a standard papermaking basic facility, so that the preparation process is suitable for industrial production.

Description

technical field [0001] The present invention relates to a cellulose-based foam and a preparation method thereof, in particular to a non-migration antibacterial cellulose-based foam and a preparation method thereof. Background technique [0002] Porous foam material is a kind of polymer material formed by dispersing a large number of gas micropores in solid plastic. It has the advantages of light weight, heat insulation, sound absorption, shock absorption, moisture resistance, and corrosion resistance, and has a wide range of uses. At present, the basic components of traditional foam materials are synthetic plastics, which are difficult to degrade themselves, resulting in white pollution and seriously damaging the living environment of human beings. Therefore, in order to overcome this shortcoming, the development and application of renewable and degradable natural biomass-based foams Materials will largely reduce environmental pollution and reduce dependence on petrochemical...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L97/02C08L33/26C08L3/02C08L77/00C08L1/02C08L79/02C08L71/02C08L5/08C08J9/30
CPCC08J9/30C08J2301/02C08J2397/02C08L1/02C08L97/02C08L2201/06C08L2203/14C08L2205/03C08L2205/035C08L2205/16C08L2312/00C08L33/26C08L3/02C08L77/00C08L79/02C08L71/02C08L5/08
Inventor 潘远凤肖惠宁
Owner GUANGXI UNIV
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