CN111850833A - Degerming and deodorizing melt-blown non-woven fabric and preparation method thereof - Google Patents

Degerming and deodorizing melt-blown non-woven fabric and preparation method thereof Download PDF

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Publication number
CN111850833A
CN111850833A CN202010492389.1A CN202010492389A CN111850833A CN 111850833 A CN111850833 A CN 111850833A CN 202010492389 A CN202010492389 A CN 202010492389A CN 111850833 A CN111850833 A CN 111850833A
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parts
melt
degerming
deodorizing
polypropylene
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CN202010492389.1A
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Inventor
戚志
黎善雄
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Guangdong Zhier Medical Equipment Co ltd
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Guangdong Zhier Medical Equipment Co ltd
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Priority to CN202010492389.1A priority Critical patent/CN111850833A/en
Publication of CN111850833A publication Critical patent/CN111850833A/en
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    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/56Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00General methods for the manufacture of artificial filaments or the like
    • D01F1/02Addition of substances to the spinning solution or to the melt
    • D01F1/07Addition of substances to the spinning solution or to the melt for making fire- or flame-proof filaments
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00General methods for the manufacture of artificial filaments or the like
    • D01F1/02Addition of substances to the spinning solution or to the melt
    • D01F1/10Other agents for modifying properties
    • D01F1/103Agents inhibiting growth of microorganisms
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/44Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/46Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/542Adhesive fibres
    • D04H1/544Olefin series

Abstract

The embodiment of the invention relates to the field of melt-blown non-woven fabric processing, and particularly discloses a degerming and deodorizing melt-blown non-woven fabric which comprises the following raw materials in parts by weight: polypropylene, antibacterial powder, polyimide fiber, chitosan, a flame retardant, an antioxidant, a coupling agent and an auxiliary agent. The implementation of the invention also discloses a preparation method of the degerming and deodorizing melt-blown non-woven fabric, which comprises the following specific steps: weighing polypropylene according to parts by weight, washing the polypropylene with deionized water, conveying the polypropylene to a hopper type hot air dryer for convection drying, mixing the treated antibacterial powder, polyimide fibers, chitosan, a flame retardant, an antioxidant, a coupling agent and an auxiliary agent, conveying the mixture to a screw extruder for melt mixing, conveying a melt obtained by melt mixing into a melt-blowing die head, extruding the melt through a spinneret hole on the die head, drafting by hot air flow in a super-multiple manner, cooling, solidifying and depositing the fibers on a receiving device, and winding the fibers into a net to obtain the melt-blown non-woven fabric.

Description

Degerming and deodorizing melt-blown non-woven fabric and preparation method thereof
Technical Field
The embodiment of the invention relates to the field of melt-blown non-woven fabric processing, in particular to a degerming and deodorizing melt-blown non-woven fabric and a preparation method thereof.
Background
With the rapid development of the economy of China, the air quality of cities is increasingly deteriorated. As is well known, most of the people in China already have a tiger change to PM2.5, and various large media, forums and famous social scholars have a profound call for enhancing the treatment of air pollution, and various "PM 2.5 forecast platforms" continuously update pollution indexes of cities across the country.
Along with the development of industrialization, the population is increased, harmful substances in the air are increased, haze is more serious, the traditional mask cloth cannot meet the requirements of people, the nano-silver antibacterial non-woven fabric has good inhibiting and blocking effects on escherichia coli, staphylococcus, candida albicans and the like, and the nano-silver antibacterial non-woven fabric greatly meets the increasingly isolation requirements and requirements of people on air pollution and is accepted by consumers.
No matter the air purifier of household appliance products or the mask of personal protection products, harmful particle type air pollutants are filtered by using melt-blown non-woven materials as the filtering core, and particularly, the air purifier has excellent control effect on PM2.5 type pollutants. However, the good air purification material not only has good capability of filtering PM2.5 fine suspended particles, but also can inhibit bacteria from breeding on the surface of the material. Unfortunately, currently, the manufacturing enterprises of mainstream air purification materials at home and abroad develop melt-blown nonwoven materials which have no function of inhibiting the growth of bacteria.
Disclosure of Invention
The embodiment of the invention aims to provide a degerming and deodorizing melt-blown non-woven fabric and a preparation method thereof, so as to solve the problems in the background technology. In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:
a degerming and deodorizing melt-blown non-woven fabric comprises the following raw materials in parts by weight: 70-80 parts of polypropylene, 5-15 parts of antibacterial powder, 1-4 parts of polyimide fiber, 2-6 parts of chitosan, 0.6-0.9 part of flame retardant, 0.2-0.6 part of antioxidant, 0.1-0.5 part of coupling agent and 0.1-0.5 part of auxiliary agent.
As a further scheme of the embodiment of the invention: the degerming and deodorizing melt-blown non-woven fabric comprises the following raw materials in parts by weight: 72-76 parts of polypropylene, 8-12 parts of antibacterial powder, 2-3 parts of polyimide fiber, 3-5 parts of chitosan, 0.7-0.8 part of flame retardant, 0.3-0.5 part of antioxidant, 0.2-0.4 part of coupling agent and 0.2-0.4 part of auxiliary agent.
As a further scheme of the embodiment of the invention: the degerming and deodorizing melt-blown non-woven fabric comprises the following raw materials in parts by weight: 74 parts of polypropylene, 10 parts of antibacterial powder, 2.5 parts of polyimide fiber, 4 parts of chitosan, 0.75 part of flame retardant, 0.4 part of antioxidant, 0.3 part of coupling agent and 0.3 part of auxiliary agent.
As a further scheme of the embodiment of the invention: the preparation method of the flame retardant comprises the following specific steps: adding pure water and piperazine into a reaction kettle in sequence, dripping phosphoric acid when the piperazine is completely dissolved in water, stirring at a constant speed at normal temperature for reaction, heating the system, adding melamine, continuing stirring for reaction, naturally cooling the system to room temperature after the reaction is finished, separating out a white solid, performing centrifugal separation on a solid phase and a liquid phase, and drying the separated solid phase product at 150 ℃ to obtain an intermediate; and adding the dried intermediate into a kneader, heating to 250 ℃, reacting for 3h, cooling to 60 ℃, crushing the product, and sieving with a 1000-mesh sieve to obtain the flame retardant.
As a further scheme of the embodiment of the invention: the mass ratio of the piperazine to the melamine to the phosphoric acid is 1:1: 3.
As a further scheme of the embodiment of the invention: the antibacterial powder comprises the following raw materials in parts by weight: 2 parts of silver nitrate, 60 parts of zirconium phosphate and 2 parts of zinc oxide.
As a further scheme of the embodiment of the invention: the preparation method of the antibacterial powder comprises the following specific steps: weighing 2 parts of silver nitrate and 60 parts of zirconium phosphate in parts by weight, exchanging in water to obtain silver phosphate, adding 2 parts of zinc oxide in the exchange process, and fully mixing to prepare the antibacterial powder.
The implementation of the invention also discloses a preparation method of the degerming and deodorizing melt-blown non-woven fabric, which comprises the following specific steps: weighing polypropylene according to parts by weight, washing the polypropylene with deionized water, conveying the polypropylene to a hopper type hot air dryer for convection drying, mixing the treated antibacterial powder, polyimide fibers, chitosan, a flame retardant, an antioxidant, a coupling agent and an auxiliary agent, conveying the mixture to a screw extruder for melt mixing, conveying a melt obtained by melt mixing into a melt-blowing die head, extruding the melt through a spinneret hole in the die head, drafting by hot air flow in a super-multiple manner, cooling, solidifying and depositing the fibers on a receiving device, and winding to form a web to obtain the degerming and deodorizing melt-blown non-woven fabric.
Compared with the prior art, in the degerming and deodorizing melt-blown non-woven fabric provided by the embodiment of the invention, the flame retardant is added into the raw materials, so that the prepared flame retardant enables the melt-blown non-woven fabric to have high flame retardant efficiency and high temperature resistance; in the embodiment of the invention, the polyimide fiber is added into the raw materials, and the polyimide fiber has a super-hydrophobic effect, so that a relatively dry surface environment can be provided for the non-woven fabric, the growth environment of bacteria is damaged, and the fabric has the effect of inhibiting the regeneration of the bacteria; in addition, the self-contained imide structure of the polyimide fiber also provides an environment for inhibiting the growth of bacteria; in the degerming and deodorizing melt-blown non-woven fabric provided by the embodiment of the invention, part or all of fibers in the non-woven fabric can be treated by chitosan solution through chitosan, or a chitosan deposition layer is formed on the surface layer of the non-woven fabric, so that the non-woven fabric has the antibacterial effect of chitosan.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more apparent, the present invention is further described in detail below with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
A degerming and deodorizing melt-blown non-woven fabric comprises the following raw materials in parts by weight: 70 parts of polypropylene, 5 parts of antibacterial powder, 1 part of polyimide fiber, 2 parts of chitosan, 0.6 part of flame retardant, 0.2 part of antioxidant, 0.1 part of coupling agent and 0.1 part of auxiliary agent.
The preparation method of the flame retardant comprises the following specific steps: adding pure water and piperazine into a reaction kettle in sequence, dripping phosphoric acid when the piperazine is completely dissolved in water, stirring at a constant speed at normal temperature for reaction, heating the system, adding melamine, continuing stirring for reaction, naturally cooling the system to room temperature after the reaction is finished, separating out a white solid, performing centrifugal separation on a solid phase and a liquid phase, and drying the separated solid phase product at 150 ℃ to obtain an intermediate; and adding the dried intermediate into a kneader, heating to 250 ℃, reacting for 3h, cooling to 60 ℃, crushing the product, and sieving with a 1000-mesh sieve to obtain the flame retardant.
The implementation of the invention also discloses a preparation method of the degerming and deodorizing melt-blown non-woven fabric, which comprises the following specific steps: weighing polypropylene according to parts by weight, washing the polypropylene with deionized water, conveying the polypropylene to a hopper type hot air dryer for convection drying, mixing the treated antibacterial powder, polyimide fibers, chitosan, a flame retardant, an antioxidant, a coupling agent and an auxiliary agent, conveying the mixture to a screw extruder for melt mixing, conveying a melt obtained by melt mixing into a melt-blowing die head, extruding the melt through a spinneret hole in the die head, drafting by hot air flow in a super-multiple manner, cooling, solidifying and depositing the fibers on a receiving device, and winding to form a web to obtain the degerming and deodorizing melt-blown non-woven fabric.
Example 2
A degerming and deodorizing melt-blown non-woven fabric comprises the following raw materials in parts by weight: 72 parts of polypropylene, 8 parts of antibacterial powder, 2 parts of polyimide fiber, 3 parts of chitosan, 0.7 part of flame retardant, 0.3 part of antioxidant, 0.2 part of coupling agent and 0.2 part of auxiliary agent.
The preparation method of the flame retardant comprises the following specific steps: adding pure water and piperazine into a reaction kettle in sequence, dripping phosphoric acid when the piperazine is completely dissolved in water, stirring at a constant speed at normal temperature for reaction, heating the system, adding melamine, continuing stirring for reaction, naturally cooling the system to room temperature after the reaction is finished, separating out a white solid, performing centrifugal separation on a solid phase and a liquid phase, and drying the separated solid phase product at 150 ℃ to obtain an intermediate; and adding the dried intermediate into a kneader, heating to 250 ℃, reacting for 3h, cooling to 60 ℃, crushing the product, and sieving with a 1000-mesh sieve to obtain the flame retardant.
The mass ratio of the piperazine to the melamine to the phosphoric acid is 1:1: 3.
The antibacterial powder comprises the following raw materials in parts by weight: 2 parts of silver nitrate, 60 parts of zirconium phosphate and 2 parts of zinc oxide.
The preparation method of the antibacterial powder comprises the following specific steps: weighing 2 parts of silver nitrate and 60 parts of zirconium phosphate in parts by weight, exchanging in water to obtain silver phosphate, adding 2 parts of zinc oxide in the exchange process, and fully mixing to prepare the antibacterial powder.
The implementation of the invention also discloses a preparation method of the degerming and deodorizing melt-blown non-woven fabric, which comprises the following specific steps: weighing polypropylene according to parts by weight, washing the polypropylene with deionized water, conveying the polypropylene to a hopper type hot air dryer for convection drying, mixing the treated antibacterial powder, polyimide fibers, chitosan, a flame retardant, an antioxidant, a coupling agent and an auxiliary agent, conveying the mixture to a screw extruder for melt mixing, conveying a melt obtained by melt mixing into a melt-blowing die head, extruding the melt through a spinneret hole in the die head, drafting by hot air flow in a super-multiple manner, cooling, solidifying and depositing the fibers on a receiving device, and winding to form a web to obtain the degerming and deodorizing melt-blown non-woven fabric.
Example 3
A degerming and deodorizing melt-blown non-woven fabric comprises the following raw materials in parts by weight: 74 parts of polypropylene, 10 parts of antibacterial powder, 2.5 parts of polyimide fiber, 4 parts of chitosan, 0.75 part of flame retardant, 0.4 part of antioxidant, 0.3 part of coupling agent and 0.3 part of auxiliary agent.
The preparation method of the flame retardant comprises the following specific steps: adding pure water and piperazine into a reaction kettle in sequence, dripping phosphoric acid when the piperazine is completely dissolved in water, stirring at a constant speed at normal temperature for reaction, heating the system, adding melamine, continuing stirring for reaction, naturally cooling the system to room temperature after the reaction is finished, separating out a white solid, performing centrifugal separation on a solid phase and a liquid phase, and drying the separated solid phase product at 150 ℃ to obtain an intermediate; and adding the dried intermediate into a kneader, heating to 250 ℃, reacting for 3h, cooling to 60 ℃, crushing the product, and sieving with a 1000-mesh sieve to obtain the flame retardant.
The mass ratio of the piperazine to the melamine to the phosphoric acid is 1:1: 3.
The antibacterial powder comprises the following raw materials in parts by weight: 2 parts of silver nitrate, 60 parts of zirconium phosphate and 2 parts of zinc oxide.
The preparation method of the antibacterial powder comprises the following specific steps: weighing 2 parts of silver nitrate and 60 parts of zirconium phosphate in parts by weight, exchanging in water to obtain silver phosphate, adding 2 parts of zinc oxide in the exchange process, and fully mixing to prepare the antibacterial powder.
The implementation of the invention also discloses a preparation method of the degerming and deodorizing melt-blown non-woven fabric, which comprises the following specific steps: weighing polypropylene according to parts by weight, washing the polypropylene with deionized water, conveying the polypropylene to a hopper type hot air dryer for convection drying, mixing the treated antibacterial powder, polyimide fibers, chitosan, a flame retardant, an antioxidant, a coupling agent and an auxiliary agent, conveying the mixture to a screw extruder for melt mixing, conveying a melt obtained by melt mixing into a melt-blowing die head, extruding the melt through a spinneret hole in the die head, drafting by hot air flow in a super-multiple manner, cooling, solidifying and depositing the fibers on a receiving device, and winding to form a web to obtain the degerming and deodorizing melt-blown non-woven fabric.
Example 4
A degerming and deodorizing melt-blown non-woven fabric comprises the following raw materials in parts by weight: 76 parts of polypropylene, 12 parts of antibacterial powder, 3 parts of polyimide fiber, 5 parts of chitosan, 0.8 part of flame retardant, 0.5 part of antioxidant, 0.4 part of coupling agent and 0.4 part of auxiliary agent.
The preparation method of the flame retardant comprises the following specific steps: adding pure water and piperazine into a reaction kettle in sequence, dripping phosphoric acid when the piperazine is completely dissolved in water, stirring at a constant speed at normal temperature for reaction, heating the system, adding melamine, continuing stirring for reaction, naturally cooling the system to room temperature after the reaction is finished, separating out a white solid, performing centrifugal separation on a solid phase and a liquid phase, and drying the separated solid phase product at 150 ℃ to obtain an intermediate; and adding the dried intermediate into a kneader, heating to 250 ℃, reacting for 3h, cooling to 60 ℃, crushing the product, and sieving with a 1000-mesh sieve to obtain the flame retardant.
The mass ratio of the piperazine to the melamine to the phosphoric acid is 1:1: 3.
The antibacterial powder comprises the following raw materials in parts by weight: 2 parts of silver nitrate, 60 parts of zirconium phosphate and 2 parts of zinc oxide.
The preparation method of the antibacterial powder comprises the following specific steps: weighing 2 parts of silver nitrate and 60 parts of zirconium phosphate in parts by weight, exchanging in water to obtain silver phosphate, adding 2 parts of zinc oxide in the exchange process, and fully mixing to prepare the antibacterial powder.
The implementation of the invention also discloses a preparation method of the degerming and deodorizing melt-blown non-woven fabric, which comprises the following specific steps: weighing polypropylene according to parts by weight, washing the polypropylene with deionized water, conveying the polypropylene to a hopper type hot air dryer for convection drying, mixing the treated antibacterial powder, polyimide fibers, chitosan, a flame retardant, an antioxidant, a coupling agent and an auxiliary agent, conveying the mixture to a screw extruder for melt mixing, conveying a melt obtained by melt mixing into a melt-blowing die head, extruding the melt through a spinneret hole in the die head, drafting by hot air flow in a super-multiple manner, cooling, solidifying and depositing the fibers on a receiving device, and winding to form a web to obtain the degerming and deodorizing melt-blown non-woven fabric.
Example 5
A degerming and deodorizing melt-blown non-woven fabric comprises the following raw materials in parts by weight: 80 parts of polypropylene, 15 parts of antibacterial powder, 4 parts of polyimide fiber, 6 parts of chitosan, 0.9 part of flame retardant, 0.6 part of antioxidant, 0.5 part of coupling agent and 0.5 part of auxiliary agent.
The preparation method of the flame retardant comprises the following specific steps: adding pure water and piperazine into a reaction kettle in sequence, dripping phosphoric acid when the piperazine is completely dissolved in water, stirring at a constant speed at normal temperature for reaction, heating the system, adding melamine, continuing stirring for reaction, naturally cooling the system to room temperature after the reaction is finished, separating out a white solid, performing centrifugal separation on a solid phase and a liquid phase, and drying the separated solid phase product at 150 ℃ to obtain an intermediate; and adding the dried intermediate into a kneader, heating to 250 ℃, reacting for 3h, cooling to 60 ℃, crushing the product, and sieving with a 1000-mesh sieve to obtain the flame retardant.
The mass ratio of the piperazine to the melamine to the phosphoric acid is 1:1: 3.
The antibacterial powder comprises the following raw materials in parts by weight: 2 parts of silver nitrate, 60 parts of zirconium phosphate and 2 parts of zinc oxide.
The preparation method of the antibacterial powder comprises the following specific steps: weighing 2 parts of silver nitrate and 60 parts of zirconium phosphate in parts by weight, exchanging in water to obtain silver phosphate, adding 2 parts of zinc oxide in the exchange process, and fully mixing to prepare the antibacterial powder.
The implementation of the invention also discloses a preparation method of the degerming and deodorizing melt-blown non-woven fabric, which comprises the following specific steps: weighing polypropylene according to parts by weight, washing the polypropylene with deionized water, conveying the polypropylene to a hopper type hot air dryer for convection drying, mixing the treated antibacterial powder, polyimide fibers, chitosan, a flame retardant, an antioxidant, a coupling agent and an auxiliary agent, conveying the mixture to a screw extruder for melt mixing, conveying a melt obtained by melt mixing into a melt-blowing die head, extruding the melt through a spinneret hole in the die head, drafting by hot air flow in a super-multiple manner, cooling, solidifying and depositing the fibers on a receiving device, and winding to form a web to obtain the degerming and deodorizing melt-blown non-woven fabric.
In conclusion, in the degerming and deodorizing melt-blown non-woven fabric provided by the embodiment of the invention, the flame retardant is added into the raw materials, so that the prepared flame retardant enables the melt-blown non-woven fabric to have high flame retardant efficiency and high temperature resistance;
secondly, the polyimide fibers are added into the raw materials, and the polyimide fibers have a super-hydrophobic effect, so that a relatively dry surface environment can be provided for the non-woven fabric, the growth environment of bacteria is damaged, and the fabric has the effect of inhibiting the regeneration of the bacteria; in addition, the self-contained imide structure of the polyimide fiber also provides an environment for inhibiting the growth of bacteria;
In addition, in the degerming and deodorizing melt-blown non-woven fabric provided by the embodiment of the invention, part or all of fibers in the non-woven fabric can be treated by chitosan solution through chitosan, or a chitosan deposition layer is formed on the surface layer of the non-woven fabric, so that the non-woven fabric has the antibacterial effect of chitosan, and rich amino groups in a chitosan molecular chain can be combined with anions of various organic matters stained in the non-woven fabric, so that a strong adsorption effect is formed, and the non-woven fabric has a good adsorption and deodorization effect.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (8)

1. The degerming and deodorizing melt-blown non-woven fabric is characterized by comprising the following raw materials in parts by weight: 70-80 parts of polypropylene, 5-15 parts of antibacterial powder, 1-4 parts of polyimide fiber, 2-6 parts of chitosan, 0.6-0.9 part of flame retardant, 0.2-0.6 part of antioxidant, 0.1-0.5 part of coupling agent and 0.1-0.5 part of auxiliary agent.
2. The degerming and deodorizing meltblown nonwoven fabric according to claim 1, comprising the following raw materials in parts by weight: 72-76 parts of polypropylene, 8-12 parts of antibacterial powder, 2-3 parts of polyimide fiber, 3-5 parts of chitosan, 0.7-0.8 part of flame retardant, 0.3-0.5 part of antioxidant, 0.2-0.4 part of coupling agent and 0.2-0.4 part of auxiliary agent.
3. The degerming and deodorizing meltblown nonwoven fabric according to claim 2, comprising the following raw materials in parts by weight: 74 parts of polypropylene, 10 parts of antibacterial powder, 2.5 parts of polyimide fiber, 4 parts of chitosan, 0.75 part of flame retardant, 0.4 part of antioxidant, 0.3 part of coupling agent and 0.3 part of auxiliary agent.
4. The degerming and deodorizing meltblown nonwoven fabric according to any of claims 1-3, characterized in that the preparation method of said flame retardant comprises the following specific steps: adding pure water and piperazine into a reaction kettle in sequence, dripping phosphoric acid when the piperazine is completely dissolved in water, stirring at a constant speed at normal temperature for reaction, heating the system, adding melamine, continuing stirring for reaction, naturally cooling the system to room temperature after the reaction is finished, separating out a white solid, performing centrifugal separation on a solid phase and a liquid phase, and drying the separated solid phase product at 150 ℃ to obtain an intermediate; and adding the dried intermediate into a kneader, heating to 250 ℃, reacting for 3h, cooling to 60 ℃, crushing the product, and sieving with a 1000-mesh sieve to obtain the flame retardant.
5. The degerming and deodorizing meltblown nonwoven fabric according to claim 5, wherein the mass ratio of piperazine, melamine and phosphoric acid is 1:1: 3.
6. The degerming and deodorizing meltblown nonwoven fabric according to claim 5, wherein the antimicrobial powder comprises the following raw materials in parts by weight: 2 parts of silver nitrate, 60 parts of zirconium phosphate and 2 parts of zinc oxide.
7. The degerming and deodorizing meltblown nonwoven fabric according to claim 6, wherein the preparation method of the antimicrobial powder comprises the following specific steps: weighing 2 parts of silver nitrate and 60 parts of zirconium phosphate in parts by weight, exchanging in water to obtain silver phosphate, adding 2 parts of zinc oxide in the exchange process, and fully mixing to prepare the antibacterial powder.
8. The method for preparing the degerming and deodorizing meltblown nonwoven fabric according to any of claims 1 to 7, characterized in that the preparation method comprises the following specific steps: weighing polypropylene according to parts by weight, washing the polypropylene with deionized water, conveying the polypropylene to a hopper type hot air dryer for convection drying, mixing the treated antibacterial powder, polyimide fibers, chitosan, a flame retardant, an antioxidant, a coupling agent and an auxiliary agent, conveying the mixture to a screw extruder for melt mixing, conveying a melt obtained by melt mixing into a melt-blowing die head, extruding the melt through a spinneret hole in the die head, drafting by hot air flow in a super-multiple manner, cooling, solidifying and depositing the fibers on a receiving device, and winding to form a web to obtain the degerming and deodorizing melt-blown non-woven fabric.
CN202010492389.1A 2020-06-03 2020-06-03 Degerming and deodorizing melt-blown non-woven fabric and preparation method thereof Pending CN111850833A (en)

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Publication number Priority date Publication date Assignee Title
CN113101891A (en) * 2021-04-16 2021-07-13 中北大学 High-nitrogen carbon-based zirconium phosphate broad-spectrum gas adsorbent and preparation method and application thereof
CN113622082A (en) * 2020-05-06 2021-11-09 深圳陶陶科技有限公司 Preparation method and application of centrifugal spinning non-woven fabric

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CN113622082A (en) * 2020-05-06 2021-11-09 深圳陶陶科技有限公司 Preparation method and application of centrifugal spinning non-woven fabric
CN113101891A (en) * 2021-04-16 2021-07-13 中北大学 High-nitrogen carbon-based zirconium phosphate broad-spectrum gas adsorbent and preparation method and application thereof

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