A chitin modified pp spunbonded nonwoven fabric

A spunbond non-woven, chitin technology, applied in non-woven fabrics, textiles and papermaking, filament/thread forming, etc., can solve problems such as mildew fibers, adhesion, etc., achieve excellent antibacterial properties, improve production Efficiency, improve stability effect

Active Publication Date: 2021-06-22
ZHONGKE TEXTILE RES INST QINGDAO CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above problems, the purpose of this invention is to provide a chitin-modified pp spunbonded nonwoven fabric to solve the technical problems that chitin PP fibers are prone to mildew and fiber adhesion due to the easy decomposition of soluble chitin.

Method used

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  • A chitin modified pp spunbonded nonwoven fabric
  • A chitin modified pp spunbonded nonwoven fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A chitin-modified pp spun-bonded nonwoven fabric, consisting of the following raw materials: 95kg of polypropylene, 0.22kg of modified chitin, 1.1kg of polyethylene glycol, 0.3kg of polyvinylpyrrolidone and 0.3kg of an antioxidant;

[0033] The antioxidant is antioxidant 3125;

[0034] The preparation method of modified chitin:

[0035] Mix and swell commercially available soluble chitin and lactic acid at pH 3-5, mix and stir at 15-25°C for 10-20 minutes, then add modifier, then sonicate for 5-10 minutes, raise the temperature to 30-35°C, and finally add pentadiene Aldehyde and N-hydroxysuccinimide, react for 13-15min to obtain a reaction solution, add chloroacetic acid to the reaction solution, stir and react at 40~80°C for 3-5 hours to obtain a mixed solution, remove the supernatant, ethanol Vacuum drying obtains modified chitin;

[0036] Modifiers include: 2-hydroxybenzimidazole, cellulose acetate butyrate, and adipate dihydrazide; wherein, the mass ratio of solub...

Embodiment 2

[0039] A chitin-modified pp spun-bonded nonwoven fabric, consisting of the following raw materials: 100kg of polypropylene, 1kg of modified chitin, 5kg of polyethylene glycol 6000, 0.1kg of polyvinylpyrrolidone and 0.6kg of antioxidant;

[0040] Described antioxidant is antioxidant 2013;

[0041] Wherein modified chitin is prepared according to the following steps:

[0042] The preparation method of modified chitin:

[0043] Mix soluble chitin and lactic acid with pH 3-5 to swell, mix and stir at 15-25°C for 10-20min, then add modifier, then sonicate for 5-10min, raise the temperature to 30-35°C, finally add glutaraldehyde and N-Hydroxysuccinimide, react for 13-15min to obtain a reaction solution, add chloroacetic acid to the reaction solution, stir and react at 40-80°C for 3-5 hours to obtain a mixed solution, remove the supernatant, and dry with ethanol in vacuum Obtain modified chitin;

[0044] Modifiers include: 2-hydroxybenzimidazole, cellulose acetate butyrate, and ad...

Embodiment 3

[0047] A chitin-modified pp spun-bonded nonwoven fabric, consisting of the following raw materials: 94kg of polypropylene, 1.2kg of modified chitin, 4kg of polyethylene glycol, 0.15kg of polyvinylpyrrolidone and 0.4kg of antioxidant;

[0048] The antioxidant is antioxidant 3125;

[0049] The preparation method of modified chitin:

[0050]Mix soluble chitin and lactic acid with pH 3-5 to swell, mix and stir at 15-25°C for 10-20min, then add modifier, then sonicate for 5-10min, raise the temperature to 30-35°C, finally add glutaraldehyde and N-Hydroxysuccinimide, react for 13-15 minutes to obtain a reaction solution, add chloroacetic acid to the reaction solution, stir and react at 40-80°C for 3-5 hours to obtain a mixed solution, remove the supernatant, and dry with ethanol in vacuum Obtain modified chitin;

[0051] Modifiers include: 2-hydroxybenzimidazole, cellulose acetate butyrate, and adipate dihydrazide; wherein, the mass ratio of soluble chitin, modifier, glutaraldehyd...

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Abstract

The invention discloses a chitin-modified PP spun-bonded non-woven fabric, which contains 0.2-1.5% of chitosan. The chitosan-modified pp spunbonded non-woven fabric has a mildew grade ≤ grade 1, and an antibacterial rate ≥ 99.5%; the chitosan-modified pp spunbonded non-woven fabric prepared by the present invention has added modified chitin, chitin During the modification process, by optimizing the modification process and removing the standing steps, the modification time of chitosan was greatly reduced by 3-5 times, and the production efficiency was improved.

Description

technical field [0001] The invention relates to the technical field of spun-bonded non-woven fabrics, in particular to a chitin-modified PP spun-bonded non-woven fabric. Background technique [0002] Chitin is a non-toxic and tasteless white or off-white translucent solid, which is difficult to dissolve in water, dilute acid, dilute alkali and general organic solvents, thus limiting its application and development. Later, people discovered in the research and exploration that chitin is treated with concentrated alkali to remove the acetyl group and then becomes soluble chitin, also known as chitosan or chitosan, and its chemical name is (1,4)-2-amino -2-Deoxy-β-D-glucose, or polyglucosamine for short. Due to the presence of a large number of amino groups in its macromolecular structure, this chitosan greatly improves the solubility and chemical activity of chitin, so it has a wide range of application values ​​in medical treatment, nutrition and health care. [0003] Solub...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/4291D01F6/46D01F1/10
CPCD04H1/4291D01F6/46D01F1/103D04H3/007D04H3/14D01F6/06D01F1/10D01D5/0985C08L23/12C08L2203/12C08L2205/035C08J3/203D10B2321/022C08B37/003C08L2205/06
Inventor 黄效华刘彦明黄效谦
Owner ZHONGKE TEXTILE RES INST QINGDAO CO LTD
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