Preparation method of antibacterial non-woven fabric

A technology of non-woven fabrics and base fabrics, which is applied in non-woven fabrics, rayon manufacturing, textiles and papermaking, etc. It can solve the problems of insufficient combination of antibacterial active ingredients and matrix fibers, uneven dispersion, etc., and improve hydrophilic performance , Improve compatibility and reduce interfacial tension

Inactive Publication Date: 2020-07-03
新昌县高纤纺织有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although silver-based antibacterial bodies are added between the layers of the non-woven fabric, there are defects that the combin

Method used

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  • Preparation method of antibacterial non-woven fabric
  • Preparation method of antibacterial non-woven fabric

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preparation example Construction

[0024] A kind of preparation method of antibacterial nonwoven fabric, comprises the steps:

[0025] The first step, according to the following parts by weight: 90-100 parts of polyester resin (PET), 8-10 parts of glycidyl methacrylate grafted polyolefin elastomer (GMA-g-POE), 3 parts of modified chitosan - Weigh each raw material in 4 parts;

[0026] The glycidyl methacrylate grafted polyolefin elastomer itself is an elastomer, and the epoxy group of GMA-g-POE reacts with the terminal carboxyl group or terminal hydroxyl group of the PET molecular chain to form a copolymer, which is used as An interfacial modifier improves the compatibility between the matrix and the dispersed phase and reduces the interfacial tension, so it can increase the notched impact strength of the blend; in addition, when the blended material is impacted instantaneously, the The elastomer can instantly absorb most of the impact energy, effectively improving the toughness of PET;

[0027] Modified chit...

Embodiment 1

[0042] A kind of antibacterial non-woven fabric is made by following steps:

[0043] The first step, according to the following parts by weight: 90 parts of PET, 8 parts of glycidyl methacrylate grafted polyolefin elastomer, 3 parts of modified chitosan and weigh each raw material;

[0044] The second step is to vacuum-dry PET at 120°C until the moisture content is less than 50ppm, and vacuum-dry the modified chitosan at 80°C for 12 hours, then add PET and modified chitosan to a twin-screw extruder for extrusion and granulation , to obtain the copolymer;

[0045] The third step is to dissolve the copolymer in hexafluoroisopropanol, prepare a 200g / L spinning solution, and then perform electrospinning to make a base fabric;

[0046] The fourth step is to put the base fabric in absolute ethanol for 30 minutes, then rinse it with ultrapure water, then immerse it in the ethanol solution of 1,5-pentanediamine, react in a water bath at 55°C for 18 hours, and take it out with an ultr...

Embodiment 2

[0050] A kind of antibacterial non-woven fabric is made by following steps:

[0051] The first step, according to the following parts by weight: 95 parts of PET, 9 parts of glycidyl methacrylate grafted polyolefin elastomer, 3.5 parts of modified chitosan and weigh each raw material;

[0052] The second step is to vacuum-dry PET at 120°C until the moisture content is less than 50ppm, and vacuum-dry the modified chitosan at 80°C for 12 hours, then add PET and modified chitosan to a twin-screw extruder for extrusion and granulation , to obtain the copolymer;

[0053] The third step is to dissolve the copolymer in hexafluoroisopropanol, prepare a 200g / L spinning solution, and then perform electrospinning to make a base fabric;

[0054] The fourth step is to put the base fabric in absolute ethanol for 35 minutes, then rinse it with ultrapure water, then immerse it in the ethanol solution of 1,5-pentanediamine, react it in a water bath at 55°C for 19 hours, and take it out with an...

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Abstract

The invention discloses a preparation method of an antibacterial non-woven fabric. The preparation method comprises the following steps that 1, the antibacterial non-woven fabric is prepared from thefollowing raw materials of, in parts by weight, 90-100 parts of PET, 8-10 parts of glycidyl methacrylate grafted polyolefin elastomer and 3-4 parts of modified chitosan; S2, a copolymer is prepared from the PET and the modified chitosan; S3, electrostatic spinning is performed on the copolymer to prepare base cloth; S4, the surface of the base cloth is modified; S5, an antibacterial base cloth isprepared; and S6, surface hydrophilic modification is carried out. According to the preparation method of the antibacterial non-woven fabric, the modified chitosan is added into the raw material, thechitosan is uniformly distributed in the PET matrix, so that the base cloth has good antibacterial performance, quaternary ammonium salt antibacterial treatment is performed on the surface of the basecloth, the antibacterial performance is further improved, and the two reinforcing modes have high washing resistance, so that the non-woven fabric has lasting antibacterial performance; the anti-pollution capability is improved by improving the hydrophilic performance of the non-woven fabric; and the obtained non-woven fabric has wide application value in the field of sewage disposal.

Description

technical field [0001] The invention belongs to the field of nonwoven fabrics, and in particular relates to a preparation method of antibacterial nonwoven fabrics. Background technique [0002] Non-woven fabric is a kind of non-woven fabric, which directly uses polymer chips, short fibers or filaments to form fibers through airflow or machinery, and then undergoes hydroentanglement, needle punching, or hot rolling reinforcement, and finally finishes finishing Formed non-woven fabric. A new type of fiber product with soft, breathable and planar structure, which has the advantages of not generating lint, strong, durable, silky soft, and has a cotton feeling. Polyester (PET) non-woven fabric, as a filter material and base fabric material, has the advantages of high strength, good chemical stability, corrosion resistance, non-toxic and non-irritating, and is widely used in water pollution treatment. Ordinary (PET) non-woven fabrics do not have antibacterial properties during u...

Claims

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Application Information

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IPC IPC(8): D06M15/267D06M15/285D06M15/347D06M14/32D04H1/728D04H1/4382D01F6/92D01F1/10C08B37/08C08F220/34C08F220/56C08F216/14D06M101/32
CPCC08B37/003C08F220/34D01F1/103D01F6/92D04H1/4382D04H1/728D06M14/32D06M15/267D06M15/285D06M15/347D06M16/00D06M2101/32D06M2200/01C08F220/56C08F216/1416
Inventor 不公告发明人
Owner 新昌县高纤纺织有限公司
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