CN114892345A - Antibacterial polypropylene non-woven fabric and preparation method and application thereof - Google Patents
Antibacterial polypropylene non-woven fabric and preparation method and application thereof Download PDFInfo
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- CN114892345A CN114892345A CN202210497306.7A CN202210497306A CN114892345A CN 114892345 A CN114892345 A CN 114892345A CN 202210497306 A CN202210497306 A CN 202210497306A CN 114892345 A CN114892345 A CN 114892345A
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- antibacterial
- woven fabric
- acid
- melt
- polypropylene non
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING 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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/005—Synthetic yarns or filaments
- D04H3/007—Addition polymers
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
- D01F1/103—Agents inhibiting growth of microorganisms
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/44—Monocomponent 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
- D01F6/46—Monocomponent 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
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING 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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-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
- D04H1/42—Non-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 characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4282—Addition polymers
- D04H1/4291—Olefin series
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Abstract
The invention provides an antibacterial polypropylene non-woven fabric and a preparation method and application thereof, wherein the antibacterial polypropylene non-woven fabric is melt-blown fabric or spun-bonded fabric and consists of 95-97 parts of polypropylene, 1-3 parts of eutectic solvent, 0.5-2 parts of antibacterial peptide and 0.1-1 part of inorganic salt; the eutectic solvent is formed by mixing and co-melting quaternary ammonium salt and carboxylic acid, has the characteristics of environmental protection and high boiling point, can dissolve antibacterial peptide and inorganic salt, is mixed with a polypropylene melt, and is processed by a spunbond method or a melt-blown method to obtain the antibacterial polypropylene non-woven fabric. The obtained antibacterial polypropylene non-woven fabric has improved structural performance and durable and strong antibacterial property, and has great application value in medical masks, surgical gowns, paper diapers, sanitary towels and antibacterial filter materials. The preparation method disclosed by the invention is environment-friendly, simple in process, low in popularization cost and suitable for industrial production.
Description
Technical Field
The invention belongs to the field of non-woven materials, and particularly relates to an antibacterial polypropylene non-woven fabric, and a preparation method and application thereof.
Background
Polypropylene nonwoven fabrics are used in the largest proportion of nonwoven materials, primarily for disposable (disposable) hygiene materials. Polypropylene spunbonded fabrics and melt-blown fabrics are widely applied to the fields of personal hygiene, medical care and the like, such as baby diapers, women sanitary napkins, medical masks, surgical gowns, surgical pads, filter elements and the like. Particularly, after the attack of epidemic caused by the novel coronavirus, the demands of medical masks, operation protective clothing and the like are rapidly increased. Furthermore, with the variation and the increase of drug resistance of viruses, bacteria and the like, the application of products with strong antibacterial performance is urgently needed. The patent CN113106633A adds the nano silver-carrying titanium dioxide and a plurality of nano particles into polypropylene for blending and spinning to obtain the antibacterial spunbonded fabric, which not only has high cost, but also is easy to cause the blockage of spinneret orifices because of the aggregation of the nano particles. Patent CN109722788A is prepared by emulsifying and dispersing chitosan, nano zinc oxide, aromatic oil, etc., adding the complex prepared solution, adding salt, acid and quaternary ammonium salt to react, preparing antibacterial capsule, and then mixing and melting the antibacterial capsule and polypropylene to obtain the antibacterial non-woven fabric, which has complex components and complex process. Patent CN112746500A obtains antibiotic polypropylene non-woven fabrics with polypropylene non-woven fabrics coating, impregnation modified tourmaline layer and quaternary ammonium salinization chitosan layer, and this kind of mode of after-treatment increases manufacturing cost undoubtedly, also influences the structural performance of non-woven fabrics. In the prior art, the antibacterial polypropylene non-woven fabric is prepared mainly by blending nano particles to spin the fabric or coating an antibacterial agent in an after-treatment manner, so that the structural performance and the production cost of the product are influenced. Therefore, it is necessary to research a processing technology which is environment-friendly and simple in process and endows the polypropylene non-woven fabric with excellent antibacterial property.
Disclosure of Invention
The invention aims to provide an antibacterial polypropylene non-woven fabric which is prepared by a processing technology with environmental protection and simple process, mainly utilizes the unique dissolving capacity of a eutectic solvent to dissolve a solid particle compound which is not dissolved usually, and simultaneously, quaternary ammonium salt in the eutectic solvent and introduced antibacterial peptide also provide strong antibacterial performance. The additive composed of the components has good compatibility, high boiling point and almost no toxicity, and the antibacterial non-woven fabric is prepared after being mixed with polypropylene.
The invention provides an antibacterial polypropylene non-woven fabric which is melt-blown fabric or spun-bonded fabric and comprises, by mass, 95-97 parts of polypropylene, 1-3 parts of an eutectic solvent, 0.5-2 parts of antibacterial peptide and 0.1-1 part of an inorganic salt, wherein the eutectic solvent is formed by mixing and co-melting quaternary ammonium salt and carboxylic acid, the quaternary ammonium salt is any one of choline chloride, betaine and derivatives thereof, and hexadecyl trimethyl ammonium bromide, the carboxylic acid is any one of gallic acid, lauric acid, p-hydroxybenzoic acid, p-coumaric acid, 3-phenylpropionic acid, cinnamic acid and oleic acid, the antibacterial peptide is polylysine, and the inorganic salt is any one of zinc oxide, titanium dioxide, zinc sulfate and copper sulfate.
In order to achieve the aim, the invention provides a preparation method of an antibacterial polypropylene non-woven fabric, which comprises the following steps:
s1, heating and melting polypropylene slices at 180-230 ℃;
s2, mixing quaternary ammonium salt and carboxylic acid, heating and stirring until the eutectic solvent is uniformly dissolved, wherein the quaternary ammonium salt is any one of choline chloride, betaine and hexadecyl trimethyl ammonium bromide, and the carboxylic acid is any one of gallic acid, lauric acid, p-hydroxybenzoic acid, p-coumaric acid, 3-phenylpropionic acid, cinnamic acid and oleic acid;
s3, respectively adding 0.5-2 parts of antibacterial peptide and 0.1-1 part of inorganic salt into 1-3 parts of the eutectic solvent obtained in S2, heating and stirring until the antibacterial peptide and the inorganic salt are uniformly dissolved to obtain the composite antibacterial agent, wherein the antibacterial peptide is polylysine, and the inorganic salt is any one of zinc oxide, titanium dioxide, zinc sulfate and copper sulfate;
s4, adding 3-5 parts of the composite antibacterial agent obtained in the step S3 into 95-97 parts of the polypropylene melt obtained in the step S1, and stirring and mixing uniformly to obtain a spinning melt;
and S5, extruding, drafting, forming a net, reinforcing or self-bonding the spinning melt obtained in the step S4 through a spinning die head or a melt-blowing die head assembly to obtain the antibacterial polypropylene non-woven fabric.
Further, the melt flow index of the polypropylene chip in S1 is 12-3000 g/10 min.
Further, the mixing molar ratio of the quaternary ammonium salt to the carboxylic acid in S2 is 1: 0.5-3, and the heating temperature is 60-100 ℃.
Further, the heating temperature in S3 is 80-120 ℃.
Further, the stirring time in S4 is 1-3 min, and the spinning melt temperature is 200-230 ℃.
Further, in S5, a spinning die head is used to obtain spunbonded fabric, and a melt-blown die head is used to obtain melt-blown fabric.
In addition, the invention also provides application of the antibacterial polypropylene non-woven fabric in medical masks, surgical gowns, paper diapers, sanitary towels and antibacterial filter materials.
The invention has the beneficial effects that:
(1) the deep eutectic solvent used in the invention contains quaternary ammonium salt, and is compounded with antibacterial peptide and antibacterial metal salt, so that the obtained polypropylene non-woven fabric has lasting and strong antibacterial property, and does not generate drug resistance.
(2) The composite antibacterial agent prepared by dissolving the antibacterial peptide and the antibacterial metal salt solid powder by the eutectic solvent is almost nontoxic, green and environment-friendly, has high boiling point and good compatibility, is mixed with a polypropylene melt and spun into cloth, has simple production process and almost no difference from the original process, and is low in popularization cost and suitable for industrial production.
Detailed Description
The present invention will be described in further detail with reference to examples, but the present invention is not limited thereto.
Example 1
The polypropylene chips with a melt flow index of 35 were preheated at 180 ℃ and then melted by heating at 220 ℃. Mixing choline chloride and gallic acid in a molar ratio of 1: 1, heating and stirring at 100 ℃ until eutectic solvent is obtained. Adding 5g of polylysine and 2.5g of copper sulfate into 17.5g of eutectic solvent, and stirring and dissolving uniformly at 100 ℃ to obtain the composite antibacterial agent. Adding 25g of the composite antibacterial agent into 475g of the polypropylene melt, and quickly stirring for 2min to uniformly mix. And extruding, drafting, forming a net and reinforcing the obtained polypropylene melt by a spinning die head assembly to obtain the antibacterial polypropylene spun-bonded non-woven fabric.
Example 2
The polypropylene chips with the melt flow index of 1500 are preheated at 180 ℃ and then heated and melted at 230 ℃. Mixing betaine and lauric acid in a molar ratio of 1: 1, heating and stirring at 80 ℃ until eutectic solvent is obtained. Adding 2.5g of polylysine and 0.5g of zinc oxide into 12g of eutectic solvent, and uniformly stirring and dissolving at 120 ℃ to obtain the composite antibacterial agent. Adding 15g of the composite antibacterial agent into 485g of the polypropylene melt, and quickly stirring for 1min to uniformly mix. And extruding, drafting, forming a net and self-bonding the obtained polypropylene melt by a spinning die head assembly to obtain the antibacterial polypropylene melt-blown non-woven fabric.
Example 3
The polypropylene chips with a melt flow index of 15 were preheated at 180 ℃ and then melted by heating at 220 ℃. Cetyl trimethylammonium bromide and oleic acid were mixed in a molar ratio of 1: 1, heating and stirring at 60 ℃ until eutectic solvent is obtained. Adding 2.5g of polylysine and 2.5g of zinc sulfate into 15g of eutectic solvent, and uniformly stirring and dissolving at 90 ℃ to obtain the composite antibacterial agent. Adding 20g of the composite antibacterial agent into 480g of the polypropylene melt, and quickly stirring for 2min to uniformly mix. And extruding, drafting, forming a net and reinforcing the obtained polypropylene melt by a spinning die head assembly to obtain the antibacterial polypropylene spun-bonded non-woven fabric.
Example 4
The polypropylene chips with a melt flow index of 2000 were preheated at 180 ℃ and then melted by heating at 230 ℃. Mixing betaine and 3-phenylpropionic acid in a molar ratio of 1: 2, heating and stirring at 70 ℃ until eutectic solvent is obtained. Adding 7.5g of polylysine and 1g of titanium dioxide into 10g of eutectic solvent, and stirring and dissolving uniformly at 90 ℃ to obtain the composite antibacterial agent. Adding 18.5g of the composite antibacterial agent into 481.5g of the polypropylene melt, and quickly stirring for 1min to uniformly mix. And extruding, drafting, forming a net and self-bonding the obtained polypropylene melt by a spinning die head assembly to obtain the antibacterial polypropylene melt-blown non-woven fabric.
Claims (8)
1. The antibacterial polypropylene non-woven fabric is characterized by being melt-blown fabric or spun-bonded fabric and comprising, by mass, 95-97 parts of polypropylene, 1-3 parts of eutectic solvent, 0.5-2 parts of antibacterial peptide and 0.1-1 part of inorganic salt, wherein the eutectic solvent is formed by mixing and co-melting quaternary ammonium salt and carboxylic acid, the quaternary ammonium salt is any one of choline chloride, betaine and derivatives thereof, and cetyl trimethyl ammonium bromide, the carboxylic acid is any one of gallic acid, lauric acid, p-hydroxybenzoic acid, p-coumaric acid, 3-phenylpropionic acid, cinnamic acid and oleic acid, the antibacterial peptide is polylysine, and the inorganic salt is any one of zinc oxide, titanium dioxide, zinc sulfate and copper sulfate.
2. The preparation method of the antibacterial polypropylene non-woven fabric is characterized by comprising the following steps:
s1, heating and melting polypropylene slices at 180-230 ℃;
s2, mixing quaternary ammonium salt and carboxylic acid, heating and stirring until the eutectic solvent is uniformly dissolved, wherein the quaternary ammonium salt is any one of choline chloride, betaine and hexadecyl trimethyl ammonium bromide, and the carboxylic acid is any one of gallic acid, lauric acid, p-hydroxybenzoic acid, p-coumaric acid, 3-phenylpropionic acid, cinnamic acid and oleic acid;
s3, respectively adding 0.5-2 parts of antibacterial peptide and 0.1-1 part of inorganic salt into 1-3 parts of the eutectic solvent obtained in S2, heating and stirring until the antibacterial peptide and the inorganic salt are uniformly dissolved to obtain the composite antibacterial agent, wherein the antibacterial peptide is polylysine, and the inorganic salt is any one of zinc oxide, titanium dioxide, zinc sulfate and copper sulfate;
s4, adding 3-5 parts of the composite antibacterial agent obtained in the step S3 into 95-97 parts of the polypropylene melt obtained in the step S1, and stirring and mixing uniformly to obtain a spinning melt;
and S5, extruding, drafting, forming a net, reinforcing or self-bonding the spinning melt obtained in the step S4 through a spinning die head or a melt-blowing die head assembly to obtain the antibacterial polypropylene non-woven fabric.
3. The method for preparing the antibacterial polypropylene non-woven fabric according to claim 2, wherein the melt flow index of the polypropylene slice in S1 is 12-3000 g/10 min.
4. The method for preparing the antibacterial polypropylene non-woven fabric according to claim 2, wherein the mixing molar ratio of the quaternary ammonium salt to the carboxylic acid in S2 is 1: 0.5-3, and the heating temperature is 60-100 ℃.
5. The preparation method of the antibacterial polypropylene non-woven fabric according to claim 2, wherein the heating temperature in S3 is 80-120 ℃.
6. The preparation method of the antibacterial polypropylene non-woven fabric according to claim 2, wherein the stirring time in S4 is 1-3 min, and the spinning melt temperature is 200-230 ℃.
7. The method for preparing the antibacterial polypropylene non-woven fabric according to claim 2, wherein in S5, a spinning die head is adopted to obtain spun-bonded fabric, and a melt-blown die head is adopted to obtain melt-blown fabric.
8. The use of the antibacterial polypropylene non-woven fabric according to claim 1 and the antibacterial polypropylene non-woven fabric prepared by the preparation method of any one of claims 2 to 7 in medical masks, surgical gowns, paper diapers, sanitary napkins and antibacterial filter materials.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210497306.7A CN114892345B (en) | 2022-05-09 | 2022-05-09 | Antibacterial polypropylene non-woven fabric and preparation method and application thereof |
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| CN202210497306.7A CN114892345B (en) | 2022-05-09 | 2022-05-09 | Antibacterial polypropylene non-woven fabric and preparation method and application thereof |
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| CN114892345A true CN114892345A (en) | 2022-08-12 |
| CN114892345B CN114892345B (en) | 2023-07-18 |
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|---|---|---|---|---|
| JP2013142215A (en) * | 2012-01-12 | 2013-07-22 | Nippon Ion Kk | Antimicrobial melt-blown nonwoven fabric and method for producing the same |
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