CN112251910A - Mineral graphene melt-blown fabric and preparation method thereof - Google Patents
Mineral graphene melt-blown fabric and preparation method thereof Download PDFInfo
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- CN112251910A CN112251910A CN202010926914.6A CN202010926914A CN112251910A CN 112251910 A CN112251910 A CN 112251910A CN 202010926914 A CN202010926914 A CN 202010926914A CN 112251910 A CN112251910 A CN 112251910A
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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
- 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
- D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
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- 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
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- 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
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- 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
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
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- 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
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
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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
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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
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/13—Physical properties anti-allergenic or anti-bacterial
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2505/00—Industrial
- D10B2505/04—Filters
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
Abstract
The invention discloses a mineral graphene melt-blown fabric and a preparation method thereof, wherein the mineral graphene melt-blown fabric comprises the following components in parts by weight: 65-75 parts of polypropylene resin, 35-45 parts of polyethylene terephthalate, 5-10 parts of graphene material, 1-5 parts of nano silver, 2-5 parts of stone needle, 15-25 parts of titanium dioxide, 0.2-0.8 part of stabilizer, 0.5-1.5 parts of coupling agent and 0.1-0.5 part of dispersing agent. According to the invention, the mineral graphene melt-blown fabric prepared from the polypropylene resin, the polyethylene terephthalate, the graphene material, the nano silver, the stone needle, the titanium dioxide, the stabilizer, the coupling agent and the dispersing agent is adopted, so that the mineral graphene melt-blown fabric has good antibacterial property, filtering rate and air permeability, especially the nano silver and the stone needle are added, the antibacterial property and the filtering property of the graphene melt-blown fabric are effectively improved, and the application range of the mineral graphene melt-blown fabric is expanded.
Description
Technical Field
The invention belongs to the technical field of melt-blown fabric, and particularly relates to mineral graphene melt-blown fabric and a preparation method thereof.
Background
Traditional polypropylene melt-blown fabric does not have functionality, and along with social development, people's demand to functional fabrics can not be satisfied, and graphite alkene polypropylene melt-blown fabric just has certain functionality, for example, has functions such as good bacterinertness, far infrared, ultraviolet resistance, can be used to in gauze mask, non-woven fabrics clothing, air purifier, as antibiotic filter material, improves the added value of products to the demand of people to healthy, environmental protection's functional fabrics has been satisfied well.
However, although the existing graphene polypropylene melt-blown fabric has good antibacterial property, far infrared and ultraviolet resistance, the antibacterial property, filtering property and air permeability still cannot achieve the best effect, and the existing graphene polypropylene melt-blown fabric still cannot meet the requirements of manufacturing certain products by 100%, for example, materials required by medical staff during epidemic in the year, such as masks and protective clothing, which have better antibacterial property and filtering rate, and the like, especially a graphene melt-blown material with particularly good antibacterial property, are still one of the main countermeasures for research and development staff in the present stage.
Disclosure of Invention
In view of the above, the main objective of the present invention is to provide a mineral graphene meltblown, which solves the problems of the existing meltblown, such as antibacterial and bactericidal properties, PM2.5 filtration rate, bacterial filtration rate and poor air permeability;
the invention also aims to provide a preparation method of the mineral graphene melt-blown fabric.
In order to achieve the purpose, the technical scheme of the invention is realized as follows: the mineral graphene melt-blown fabric comprises the following components in parts by weight: 65-75 parts of polypropylene resin, 35-45 parts of polyethylene terephthalate, 5-10 parts of graphene material, 1-5 parts of nano silver, 2-5 parts of stone needle, 15-25 parts of titanium dioxide, 0.2-0.8 part of stabilizer, 0.5-1.5 parts of coupling agent and 0.1-0.5 part of dispersing agent.
Preferably, the graphene material is at least one of graphene and graphene oxide.
Preferably, the particle size of the graphene material is 2.0-2.5 nm.
Preferably, the particle size of the nano silver is 0.8-2.6 nm.
Preferably, the particle size of the stone needle is 2.0-4.2 nm.
Preferably, the stabilizer is organotin; the dispersing agent is at least one of triethylhexyl phosphoric acid, methyl amyl alcohol, cellulose derivatives, polyacrylamide and fatty acid polyglycol ester; the coupling agent is at least one of butyl titanate and isopropyl titanate.
The other technical scheme of the invention is realized as follows: a preparation method of mineral graphene melt-blown fabric is realized by the following steps:
s1, respectively weighing the following components in parts by weight: 65-75 parts of polypropylene resin, 35-45 parts of polyethylene terephthalate, 5-10 parts of graphene material, 1-5 parts of nano silver, 2-5 parts of stone needle, 15-25 parts of titanium dioxide, 0.2-0.8 part of stabilizer, 0.5-1.5 parts of coupling agent and 0.3-1.2 parts of dispersing agent;
s2, sequentially adding the polypropylene resin, the polyethylene terephthalate, the graphene material, the nano silver, the stone needle, the titanium dioxide, the stabilizer, the coupling agent and the dispersing agent in the S1 into a mixing box, and stirring and mixing to obtain a raw material mixture;
s3, adding the raw material mixture obtained in the S2 into a screw extruder for melt extrusion to obtain a melt;
s4, filtering the melt obtained in the step S3 by a double-piston filtering device to obtain a filtered melt;
s5, drafting the fine flow of the melt obtained in the S4 by high-speed hot air flow, mixing room-temperature air at two sides into the hot air flow for drafting, cooling and forming the fine flow, and obtaining superfine fibers;
and S6, collecting the superfine fibers obtained in the step S5 on a condensation net curtain, mutually bonding the superfine fibers together by utilizing self waste heat, trimming the superfine fibers by using a trimming machine, and winding the superfine fibers on a winding roller to obtain melt-blown fabrics with various specifications.
Preferably, when the raw material mixture is placed into a screw extruder in the step S3, the temperature of a screw and a die head of the screw extruder is 180-230 ℃, the temperature of a 1 zone is 205-215 ℃, the temperature of a 2 zone is 215-225 ℃, the temperature of a 3 zone is 225-235 ℃, the temperature of a flange is 225-235 ℃, the temperature of an elbow is 225-235 ℃, and the dominant frequency of the screw is 10-20 Hz.
Preferably, when the melt stream is drawn by the high-speed hot air flow in S5, the hot air temperature is 270 to 280 ℃, and the hot air pressure is 0.2 to 0.4 MPa.
Preferably, in S6, a vacuum suction device is arranged at the lower part of the curtaining screen to collect the fibers on the curtaining screen, and the fibers are thermally bonded into a non-woven fabric by themselves; the receiving distance of the net formation is 10-20 cm, and the net formation speed is 20-50 cm/s.
Compared with the prior art, the mineral graphene melt-blown fabric prepared from the polypropylene resin, the polyethylene terephthalate, the graphene material, the nano silver, the stone needle, the titanium dioxide, the stabilizer, the coupling agent and the dispersing agent has good antibacterial property, filtering rate and air permeability, particularly, the antibacterial property and the filtering property on PM2.5 and bacteria of the graphene melt-blown fabric are effectively improved by adding the nano silver and the stone needle, specifically, the antibacterial property and the filtering property of the graphene melt-blown fabric are up to 99%, and the filtering property is up to 99.88%, so that the application range of the mineral graphene melt-blown fabric is expanded, and in addition, the mineral graphene melt-blown fabric prepared by the method can highly make up the defects left by the existing melt-blown fabric;
in addition, the preparation method has mild melting conditions and low production difficulty. And the prepared melt-blown fabric has excellent quality and performance, and is worthy of wide popularization and application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail 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.
The mineral graphene melt-blown fabric provided by the embodiment of the invention comprises the following components in parts by weight: 65-75 parts of polypropylene resin, 35-45 parts of polyethylene terephthalate, 5-10 parts of graphene material with the particle size of 2.0-2.5 nm, 1-5 parts of nano silver with the particle size of 0.8-2.6 nm, 2-5 parts of stone needle with the particle size of 2.0-4.2 nm, 15-25 parts of titanium dioxide, 0.2-0.8 part of stabilizer, 0.5-1.5 parts of coupling agent and 0.1-0.5 part of dispersing agent.
Wherein the graphene material is at least one of graphene and graphene oxide; the stabilizer is organic tin; the dispersing agent is at least one of triethylhexyl phosphoric acid, methyl amyl alcohol, cellulose derivatives, polyacrylamide and fatty acid polyglycol ester; the coupling agent is at least one of butyl titanate and isopropyl titanate.
The embodiment of the invention also provides a preparation method of the mineral graphene melt-blown fabric, which is realized by the following steps:
s1, respectively weighing the following components in parts by weight: 65-75 parts of polypropylene resin, 35-45 parts of polyethylene terephthalate, 5-10 parts of graphene material, 1-5 parts of nano silver, 2-5 parts of stone needle, 15-25 parts of titanium dioxide, 0.2-0.8 part of stabilizer, 0.5-1.5 parts of coupling agent and 0.3-1.2 parts of dispersing agent;
s2, sequentially adding the polypropylene resin, the polyethylene terephthalate, the graphene material, the nano silver, the stone needle, the titanium dioxide, the stabilizer, the coupling agent and the dispersing agent in the S1 into a mixing box, and stirring and mixing to obtain a raw material mixture;
s3, adding the raw material mixture obtained in the S2 into a screw extruder for melt extrusion to obtain a melt; when the raw material mixture is placed into a screw extruder, the temperature of a screw and a die head of the screw extruder is 180-230 ℃, the temperature of a 1 zone is 205-215 ℃, the temperature of a 2 zone is 215-225 ℃, the temperature of a 3 zone is 225-235 ℃, the temperature of a flange is 225-235 ℃, the temperature of an elbow is 225-235 ℃, and the main frequency of the screw is 10-20 Hz;
s4, filtering the melt obtained in the step S3 by a double-piston filtering device to obtain a filtered melt;
s5, drafting the fine flow of the melt obtained in the S4 by high-speed hot air flow, mixing room-temperature air at two sides into the hot air flow for drafting, cooling and forming the fine flow, and obtaining superfine fibers; wherein, when the melt trickle is drafted by the high-speed hot air flow, the temperature of the hot air is 270-280 ℃, and the pressure of the hot air is 0.2-0.4 MPa;
and S6, collecting the superfine fibers obtained in the step S5 on a condensation net curtain with a vacuum suction device arranged at the lower part (wherein the receiving distance of the net is 10-20 cm, the net forming speed is 20-50 cm/S), mutually bonding the superfine fibers together by utilizing the self waste heat, trimming the superfine fibers by a trimming machine, and winding the superfine fibers on a winding roller to obtain the melt-blown fabrics with different specifications.
The following are specific examples
Example 1
The mineral graphene meltblown fabric provided in this embodiment 1 includes the following components in parts by weight: 70 parts of polypropylene resin, 40 parts of polyethylene terephthalate, 8 parts of graphene with the particle size of 2.0-2.5 nm, 3 parts of nano-silver with the particle size of 0.8-2.6 nm, 3 parts of stone needle with the particle size of 2.0-4.2 nm, 20 parts of titanium dioxide, 0.5 part of organic tin, 1.0 part of butyl titanate and 0.8 part of triethylhexylphosphoric acid.
The preparation method of the mineral graphene meltblown fabric provided in this example 1 is as follows:
s1, respectively weighing the following components in parts by weight: : 70 parts of polypropylene resin, 40 parts of polyethylene terephthalate, 8 parts of graphene with the particle size of 2.0-2.5 nm, 3 parts of nano-silver with the particle size of 0.8-2.6 nm, 3 parts of stone needle with the particle size of 2.0-4.2 nm, 20 parts of titanium dioxide, 0.5 part of organic tin, 1.0 part of butyl titanate and 0.8 part of triethylhexylphosphoric acid;
s2, sequentially adding the polypropylene resin, the polyethylene terephthalate, the graphene material, the nano silver, the stone needle, the titanium dioxide, the organic tin, the butyl titanate and the triethylhexyl phosphoric acid in the S1 into a mixing box, and stirring and mixing to obtain a raw material mixture;
s3, adding the raw material mixture obtained in the S2 into a screw extruder for melt extrusion to obtain a melt; wherein, when the raw material mixture is put into a screw extruder, the temperature of a screw and a die head of the screw extruder is 200 ℃, the temperature of a 1 zone is 210 ℃, the temperature of a 2 zone is 220 ℃, the temperature of a 3 zone is 230 ℃, the temperature of a flange is 230 ℃, the temperature of an elbow is 230 ℃, and the dominant frequency of the screw is 15 Hz;
s4, filtering the melt obtained in the step S3 by a double-piston filtering device to obtain a filtered melt;
s5, drafting the fine flow of the melt obtained in the S4 by high-speed hot air flow, mixing room-temperature air at two sides into the hot air flow for drafting, cooling and forming the fine flow, and obtaining superfine fibers; wherein, when the melt stream is drafted by high-speed hot air flow, the temperature of the hot air is 275 ℃, and the pressure of the hot air is 0.3 MPa;
and S6, collecting the superfine fibers obtained in the step S5 on a condensation net curtain with a vacuum suction device arranged at the lower part (wherein the receiving distance of the net is 15cm, the net forming speed is 35cm/S), utilizing the self waste heat to mutually bond the superfine fibers together, trimming the superfine fibers by a trimming machine, and winding the superfine fibers on a winding roller to obtain the melt-blown fabrics with various specifications.
Example 2
The mineral graphene meltblown fabric provided by the embodiment 2 comprises the following components in parts by weight: 65 parts of polypropylene resin, 32 parts of polyethylene terephthalate, 5 parts of graphene with the particle size of 2.0-2.5 nm, 1 part of nano-silver with the particle size of 0.8-2.6 nm, 2 parts of stone needle with the particle size of 2.0-4.2 nm, 15 parts of titanium dioxide, 0.2 part of organic tin, 0.5 part of butyl titanate and 0.3 part of triethylhexylphosphoric acid.
The preparation method of the mineral graphene meltblown fabric provided in this example 2 is as follows:
s1, respectively weighing the following components in parts by weight: 65 parts of polypropylene resin, 32 parts of polyethylene terephthalate, 5 parts of graphene with the particle size of 2.0-2.5 nm, 1 part of nano-silver with the particle size of 0.8-2.6 nm, 2 parts of stone needle with the particle size of 2.0-4.2 nm, 15 parts of titanium dioxide, 0.2 part of organic tin, 0.5 part of butyl titanate and 0.3 part of triethylhexylphosphoric acid;
s2, sequentially adding the polypropylene resin, the polyethylene terephthalate, the graphene material, the nano silver, the stone needle, the titanium dioxide, the organic tin, the butyl titanate and the triethylhexyl phosphoric acid in the S1 into a mixing box, and stirring and mixing to obtain a raw material mixture;
s3, adding the raw material mixture obtained in the S2 into a screw extruder for melt extrusion to obtain a melt; wherein, when the raw material mixture is put into a screw extruder, the temperature of a screw and a die head of the screw extruder is 180 ℃, the temperature of a 1 zone is 205 ℃, the temperature of a 2 zone is 215 ℃, the temperature of a 3 zone is 225 ℃, the temperature of a flange is 225 ℃, the temperature of an elbow is 225 ℃, and the dominant frequency of the screw is 10 Hz;
s4, filtering the melt obtained in the step S3 by a double-piston filtering device to obtain a filtered melt;
s5, drafting the fine flow of the melt obtained in the S4 by high-speed hot air flow, mixing room-temperature air at two sides into the hot air flow for drafting, cooling and forming the fine flow, and obtaining superfine fibers; wherein, when the melt stream is drafted by the high-speed hot air flow, the temperature of the hot air is 270 ℃, and the pressure of the hot air is 0.2 MPa;
and S6, collecting the superfine fibers obtained in the step S5 on a condensation net curtain with a vacuum suction device arranged at the lower part (wherein the receiving distance of the net is 10cm, the net forming speed is 20cm/S), utilizing the self waste heat to mutually bond the superfine fibers together, trimming the superfine fibers by a trimming machine, and winding the superfine fibers on a winding roller to obtain the melt-blown fabrics with various specifications.
Example 3
The mineral graphene meltblown fabric provided by the embodiment 3 comprises the following components in parts by weight: 75 parts of polypropylene resin, 45 parts of polyethylene terephthalate, 10 parts of graphene with the particle size of 2.0-2.5 nm, 5 parts of nano-silver with the particle size of 0.8-2.6 nm, 5 parts of stone needle with the particle size of 2.0-4.2 nm, 15 parts of titanium dioxide, 0.8 part of organic tin, 1.5 parts of butyl titanate and 1.2 parts of triethylhexylphosphoric acid.
The preparation method of the mineral graphene meltblown fabric provided in this embodiment 3 is as follows:
s1, respectively weighing the following components in parts by weight: 75 parts of polypropylene resin, 45 parts of polyethylene terephthalate, 10 parts of graphene with the particle size of 2.0-2.5 nm, 5 parts of nano-silver with the particle size of 0.8-2.6 nm, 5 parts of stone needle with the particle size of 2.0-4.2 nm, 15 parts of titanium dioxide, 0.8 part of organic tin, 1.5 parts of butyl titanate and 1.2 parts of triethylhexylphosphoric acid;
s2, sequentially adding the polypropylene resin, the polyethylene terephthalate, the graphene material, the nano silver, the stone needle, the titanium dioxide, the organic tin, the butyl titanate and the triethylhexyl phosphoric acid in the S1 into a mixing box, and stirring and mixing to obtain a raw material mixture;
s3, adding the raw material mixture obtained in the S2 into a screw extruder for melt extrusion to obtain a melt; wherein, when the raw material mixture is put into a screw extruder, the temperature of a screw and a die head of the screw extruder is 230 ℃, 215 ℃ in a 1 area, 225 ℃ in a 2 area, 235 ℃ in a 3 area, 235 ℃ in a flange temperature, 235 ℃ in an elbow temperature and 20Hz of primary frequency of the screw;
s4, filtering the melt obtained in the step S3 by a double-piston filtering device to obtain a filtered melt;
s5, drafting the fine flow of the melt obtained in the S4 by high-speed hot air flow, mixing room-temperature air at two sides into the hot air flow for drafting, cooling and forming the fine flow, and obtaining superfine fibers; wherein, when the melt stream is drafted by the high-speed hot air flow, the temperature of the hot air is 280 ℃, and the pressure of the hot air is 0.4 MPa;
and S6, collecting the superfine fibers obtained in the step S5 on a condensation net curtain with a vacuum suction device arranged at the lower part (wherein the receiving distance of the net is 20cm, the net forming speed is 50cm/S), utilizing the self waste heat to mutually bond the superfine fibers together, trimming the superfine fibers by a trimming machine, and winding the superfine fibers on a winding roller to obtain the melt-blown fabrics with various specifications.
Example 4
The mineral graphene meltblown fabric provided by this embodiment 4 includes the following components in parts by weight: 70 parts of polypropylene resin, 40 parts of polyethylene terephthalate, 8 parts of graphene with the particle size of 2.0-2.5 nm, 3 parts of nano-silver with the particle size of 0.8-2.6 nm, 3 parts of stone needle with the particle size of 2.0-4.2 nm, 20 parts of titanium dioxide, 0.5 part of organic tin, 1.0 part of butyl titanate and 0.8 part of triethylhexylphosphoric acid.
The preparation method of the mineral graphene meltblown fabric provided in this embodiment 4 is as follows:
s1, respectively weighing the following components in parts by weight: 70 parts of polypropylene resin, 40 parts of polyethylene terephthalate, 8 parts of graphene with the particle size of 2.0-2.5 nm, 3 parts of nano-silver with the particle size of 0.8-2.6 nm, 3 parts of stone needle with the particle size of 2.0-4.2 nm, 20 parts of titanium dioxide, 0.5 part of organic tin, 1.0 part of butyl titanate and 0.8 part of triethylhexylphosphoric acid;
s2, sequentially adding the polypropylene resin, the polyethylene terephthalate, the graphene material, the nano silver, the stone needle, the titanium dioxide, the organic tin, the butyl titanate and the triethylhexyl phosphoric acid in the S1 into a mixing box, and stirring and mixing to obtain a raw material mixture;
s3, adding the raw material mixture obtained in the S2 into a screw extruder for melt extrusion to obtain a melt; wherein, when the raw material mixture is put into a screw extruder, the temperature of a screw and a die head of the screw extruder is 180 ℃, the temperature of a 1 zone is 205 ℃, the temperature of a 2 zone is 215 ℃, the temperature of a 3 zone is 225 ℃, the temperature of a flange is 225 ℃, the temperature of an elbow is 225 ℃, and the dominant frequency of the screw is 10 Hz;
s4, filtering the melt obtained in the step S3 by a double-piston filtering device to obtain a filtered melt;
s5, drafting the fine flow of the melt obtained in the S4 by high-speed hot air flow, mixing room-temperature air at two sides into the hot air flow for drafting, cooling and forming the fine flow, and obtaining superfine fibers; wherein, when the melt stream is drafted by the high-speed hot air flow, the temperature of the hot air is 270 ℃, and the pressure of the hot air is 0.2 MPa;
and S6, collecting the superfine fibers obtained in the step S5 on a condensation net curtain with a vacuum suction device arranged at the lower part (wherein the receiving distance of the net is 10cm, the net forming speed is 20cm/S), utilizing the self waste heat to mutually bond the superfine fibers together, trimming the superfine fibers by a trimming machine, and winding the superfine fibers on a winding roller to obtain the melt-blown fabrics with various specifications.
Example 5
The mineral graphene meltblown fabric provided in this embodiment 5 includes the following components in parts by weight: 70 parts of polypropylene resin, 40 parts of polyethylene terephthalate, 8 parts of graphene with the particle size of 2.0-2.5 nm, 3 parts of nano-silver with the particle size of 0.8-2.6 nm, 3 parts of stone needle with the particle size of 2.0-4.2 nm, 20 parts of titanium dioxide, 0.5 part of organic tin, 1.0 part of butyl titanate and 0.8 part of triethylhexylphosphoric acid.
The preparation method of the mineral graphene meltblown provided in this example 5 is as follows:
s1, respectively weighing the following components in parts by weight: 70 parts of polypropylene resin, 40 parts of polyethylene terephthalate, 8 parts of graphene with the particle size of 2.0-2.5 nm, 3 parts of nano-silver with the particle size of 0.8-2.6 nm, 3 parts of stone needle with the particle size of 2.0-4.2 nm, 20 parts of titanium dioxide, 0.5 part of organic tin, 1.0 part of butyl titanate and 0.8 part of triethylhexylphosphoric acid;
s2, sequentially adding the polypropylene resin, the polyethylene terephthalate, the graphene material, the nano silver, the stone needle, the titanium dioxide, the organic tin, the butyl titanate and the triethylhexyl phosphoric acid in the S1 into a mixing box, and stirring and mixing to obtain a raw material mixture;
s3, adding the raw material mixture obtained in the S2 into a screw extruder for melt extrusion to obtain a melt; wherein, when the raw material mixture is put into a screw extruder, the temperature of a screw and a die head of the screw extruder is 230 ℃, 215 ℃ in a 1 area, 225 ℃ in a 2 area, 235 ℃ in a 3 area, 235 ℃ in a flange temperature, 235 ℃ in an elbow temperature and 20Hz of primary frequency of the screw;
s4, filtering the melt obtained in the step S3 by a double-piston filtering device to obtain a filtered melt;
s5, drafting the fine flow of the melt obtained in the S4 by high-speed hot air flow, mixing room-temperature air at two sides into the hot air flow for drafting, cooling and forming the fine flow, and obtaining superfine fibers; wherein, when the melt stream is drafted by the high-speed hot air flow, the temperature of the hot air is 280 ℃, and the pressure of the hot air is 0.4 MPa;
and S6, collecting the superfine fibers obtained in the step S5 on a condensation net curtain with a vacuum suction device arranged at the lower part (wherein the receiving distance of the net is 20cm, the net forming speed is 50cm/S), utilizing the self waste heat to mutually bond the superfine fibers together, trimming the superfine fibers by a trimming machine, and winding the superfine fibers on a winding roller to obtain the melt-blown fabrics with various specifications.
Example 6
The mineral graphene meltblown fabric provided in this embodiment 6 includes the following components in parts by weight: 65 parts of polypropylene resin, 32 parts of polyethylene terephthalate, 5 parts of graphene with the particle size of 2.0-2.5 nm, 1 part of nano-silver with the particle size of 0.8-2.6 nm, 2 parts of stone needle with the particle size of 2.0-4.2 nm, 15 parts of titanium dioxide, 0.2 part of organic tin, 0.5 part of butyl titanate and 0.3 part of triethylhexylphosphoric acid.
The preparation method of the mineral graphene meltblown fabric provided in this example 6 is as follows:
s1, respectively weighing the following components in parts by weight: 65 parts of polypropylene resin, 32 parts of polyethylene terephthalate, 5 parts of graphene with the particle size of 2.0-2.5 nm, 1 part of nano-silver with the particle size of 0.8-2.6 nm, 2 parts of stone needle with the particle size of 2.0-4.2 nm, 15 parts of titanium dioxide, 0.2 part of organic tin, 0.5 part of butyl titanate and 0.3 part of triethylhexylphosphoric acid;
s2, sequentially adding the polypropylene resin, the polyethylene terephthalate, the graphene material, the nano silver, the stone needle, the titanium dioxide, the organic tin, the butyl titanate and the triethylhexyl phosphoric acid in the S1 into a mixing box, and stirring and mixing to obtain a raw material mixture;
s3, adding the raw material mixture obtained in the S2 into a screw extruder for melt extrusion to obtain a melt; wherein, when the raw material mixture is put into a screw extruder, the temperature of a screw and a die head of the screw extruder is 200 ℃, the temperature of a 1 zone is 210 ℃, the temperature of a 2 zone is 220 ℃, the temperature of a 3 zone is 230 ℃, the temperature of a flange is 230 ℃, the temperature of an elbow is 230 ℃, and the dominant frequency of the screw is 15 Hz;
s4, filtering the melt obtained in the step S3 by a double-piston filtering device to obtain a filtered melt;
s5, drafting the fine flow of the melt obtained in the S4 by high-speed hot air flow, mixing room-temperature air at two sides into the hot air flow for drafting, cooling and forming the fine flow, and obtaining superfine fibers; wherein, when the melt stream is drafted by high-speed hot air flow, the temperature of the hot air is 275 ℃, and the pressure of the hot air is 0.3 MPa;
and S6, collecting the superfine fibers obtained in the step S5 on a condensation net curtain with a vacuum suction device arranged at the lower part (wherein the receiving distance of the net is 15cm, the net forming speed is 35cm/S), utilizing the self waste heat to mutually bond the superfine fibers together, trimming the superfine fibers by a trimming machine, and winding the superfine fibers on a winding roller to obtain the melt-blown fabrics with various specifications.
Example 7
The mineral graphene meltblown fabric provided in this embodiment 7 includes the following components in parts by weight: 65 parts of polypropylene resin, 32 parts of polyethylene terephthalate, 5 parts of graphene with the particle size of 2.0-2.5 nm, 1 part of nano-silver with the particle size of 0.8-2.6 nm, 2 parts of stone needle with the particle size of 2.0-4.2 nm, 15 parts of titanium dioxide, 0.2 part of organic tin, 0.5 part of butyl titanate and 0.3 part of triethylhexylphosphoric acid.
The preparation method of the mineral graphene meltblown fabric provided in this example 7 is as follows:
s1, respectively weighing the following components in parts by weight: 65 parts of polypropylene resin, 32 parts of polyethylene terephthalate, 5 parts of graphene with the particle size of 2.0-2.5 nm, 1 part of nano-silver with the particle size of 0.8-2.6 nm, 2 parts of stone needle with the particle size of 2.0-4.2 nm, 15 parts of titanium dioxide, 0.2 part of organic tin, 0.5 part of butyl titanate and 0.3 part of triethylhexylphosphoric acid;
s2, sequentially adding the polypropylene resin, the polyethylene terephthalate, the graphene material, the nano silver, the stone needle, the titanium dioxide, the organic tin, the butyl titanate and the triethylhexyl phosphoric acid in the S1 into a mixing box, and stirring and mixing to obtain a raw material mixture;
s3, adding the raw material mixture obtained in the S2 into a screw extruder for melt extrusion to obtain a melt; wherein, when the raw material mixture is put into a screw extruder, the temperature of a screw and a die head of the screw extruder is 230 ℃, 215 ℃ in a 1 area, 225 ℃ in a 2 area, 235 ℃ in a 3 area, 235 ℃ in a flange temperature, 235 ℃ in an elbow temperature and 20Hz of primary frequency of the screw;
s4, filtering the melt obtained in the step S3 by a double-piston filtering device to obtain a filtered melt;
s5, drafting the fine flow of the melt obtained in the S4 by high-speed hot air flow, mixing room-temperature air at two sides into the hot air flow for drafting, cooling and forming the fine flow, and obtaining superfine fibers; wherein, when the melt stream is drafted by the high-speed hot air flow, the temperature of the hot air is 280 ℃, and the pressure of the hot air is 0.4 MPa;
and S6, collecting the superfine fibers obtained in the step S5 on a condensation net curtain with a vacuum suction device arranged at the lower part (wherein the receiving distance of the net is 20cm, the net forming speed is 50cm/S), utilizing the self waste heat to mutually bond the superfine fibers together, trimming the superfine fibers by a trimming machine, and winding the superfine fibers on a winding roller to obtain the melt-blown fabrics with various specifications.
Example 8
The mineral graphene meltblown fabric provided by this embodiment 8 includes the following components in parts by weight: 75 parts of polypropylene resin, 45 parts of polyethylene terephthalate, 10 parts of graphene with the particle size of 2.0-2.5 nm, 5 parts of nano-silver with the particle size of 0.8-2.6 nm, 5 parts of stone needle with the particle size of 2.0-4.2 nm, 15 parts of titanium dioxide, 0.8 part of organic tin, 1.5 parts of butyl titanate and 1.2 parts of triethylhexylphosphoric acid.
The preparation method of the mineral graphene meltblown fabric provided in this embodiment 8 is as follows:
s1, respectively weighing the following components in parts by weight: 75 parts of polypropylene resin, 45 parts of polyethylene terephthalate, 10 parts of graphene with the particle size of 2.0-2.5 nm, 5 parts of nano-silver with the particle size of 0.8-2.6 nm, 5 parts of stone needle with the particle size of 2.0-4.2 nm, 15 parts of titanium dioxide, 0.8 part of organic tin, 1.5 parts of butyl titanate and 1.2 parts of triethylhexylphosphoric acid;
s2, sequentially adding the polypropylene resin, the polyethylene terephthalate, the graphene material, the nano silver, the stone needle, the titanium dioxide, the organic tin, the butyl titanate and the triethylhexyl phosphoric acid in the S1 into a mixing box, and stirring and mixing to obtain a raw material mixture;
s3, adding the raw material mixture obtained in the S2 into a screw extruder for melt extrusion to obtain a melt; wherein, when the raw material mixture is put into a screw extruder, the temperature of a screw and a die head of the screw extruder is 200 ℃, the temperature of a 1 zone is 210 ℃, the temperature of a 2 zone is 220 ℃, the temperature of a 3 zone is 230 ℃, the temperature of a flange is 230 ℃, the temperature of an elbow is 230 ℃, and the dominant frequency of the screw is 15 Hz;
s4, filtering the melt obtained in the step S3 by a double-piston filtering device to obtain a filtered melt;
s5, drafting the fine flow of the melt obtained in the S4 by high-speed hot air flow, mixing room-temperature air at two sides into the hot air flow for drafting, cooling and forming the fine flow, and obtaining superfine fibers; wherein, when the melt stream is drafted by high-speed hot air flow, the temperature of the hot air is 275 ℃, and the pressure of the hot air is 0.3 MPa;
and S6, collecting the superfine fibers obtained in the step S5 on a condensation net curtain with a vacuum suction device arranged at the lower part (wherein the receiving distance of the net is 15cm, the net forming speed is 35cm/S), utilizing the self waste heat to mutually bond the superfine fibers together, trimming the superfine fibers by a trimming machine, and winding the superfine fibers on a winding roller to obtain the melt-blown fabrics with various specifications.
Comparative example 1
The components and the preparation method are basically the same as those in the example 1, except that the nano silver and the stone needle are not added in the comparative example 1.
Comparative example 2
The composition and preparation method are basically the same as those of example 1, except that nano silver is not added in comparative example 2.
Comparative example 3
The components and preparation method are basically the same as those in example 1, except that no stone needle is added in comparative example 2.
Comparative example 4
The components and the preparation method are basically the same as those in the example 1, except that the particle size of the nano silver added in the comparative example 3 is less than 0.8nm, and the particle size of the stone needle is less than 2.0 nm.
Comparative example 5
The components and the preparation method are basically the same as those in the example 1, except that the particle size of the nano silver added in the comparative example 4 is more than 2.6nm, and the particle size of the stone needle is more than 4.2 nm.
In order to verify the physical properties of the mineral graphene meltblown obtained by the invention, such as filtration rate, bacteriostasis rate, air permeability and the like, the physical properties of the graphene meltblown obtained in examples 1 to 8 and comparative examples 1 to 5 were tested, and the test structure is shown in table 1 below.
Table 1 physical property test results of graphene meltblown fabrics obtained in examples 1 to 8 and comparative examples 1 to 5
As can be seen from the data in table 1, the bacteriostatic rate, the PM2.5 filtration rate, the bacterial filtration rate and the air permeability of the graphene meltblown obtained in the embodiments 1 to 8 on staphylococcus aureus are far better than those of the graphene meltblown obtained in the comparative examples 1 to 5 on staphylococcus aureus; in addition, it can be known from the data in the example 1 and the comparative examples 1 to 3 in table 1 that, without adding nano silver and stone needle or adding only one of nano silver and stone needle, the antibacterial sterilization rate and the filtration rate of the obtained graphene meltblown are almost unchanged, and the antibacterial sterilization rate and the filtration rate of the graphene meltblown can be effectively improved only by adding nano silver and stone needle at the same time, so that in the invention, the antibacterial sterilization rate and the filtration rate of the obtained mineral graphene meltblown can be optimal only by adding nano silver and stone needle at the same time and utilizing the synergistic effect between the nano silver and the stone needle, and neither of the nano silver and the stone needle is absent; in addition, it can be known from the data in example 1 and comparative examples 4 to 5 in table 1 that when the particle sizes of the added nano silver and stone needle are not within the particle size range of the present invention, the antibacterial bactericidal rate and the filtration rate of the obtained graphene meltblown are far less than those of the mineral graphene meltblown obtained in example 1 of the present invention, so that the particle sizes of the nano silver and the stone needle also play a crucial role in preparing the mineral graphene meltblown with better antibacterial bactericidal rate and filtration rate.
In summary, the mineral graphene meltblown fabric prepared from the polypropylene resin, the polyethylene terephthalate, the graphene material, the nano silver, the stone needle, the titanium dioxide, the stabilizer, the coupling agent and the dispersing agent has good antibacterial property, filtration rate and air permeability, particularly, the antibacterial property and the filtration property on PM2.5 and bacteria of the graphene meltblown fabric are effectively improved by adding the nano silver and the stone needle, specifically, the antibacterial property and the filtration property of the graphene meltblown fabric are as high as 99%, and the filtration property is as high as 99.88%, so that the application range of the mineral graphene meltblown fabric is expanded, and in addition, the mineral graphene meltblown fabric prepared by the method disclosed by the invention can highly make up for the defects left in the existing meltblown fabric.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The mineral graphene melt-blown fabric is characterized by comprising the following components in parts by weight: 65-75 parts of polypropylene resin, 35-45 parts of polyethylene terephthalate, 5-10 parts of graphene material, 1-5 parts of nano silver, 2-5 parts of stone needle, 15-25 parts of titanium dioxide, 0.2-0.8 part of stabilizer, 0.5-1.5 parts of coupling agent and 0.1-0.5 part of dispersing agent.
2. The mineral graphene meltblown according to claim 1, wherein the graphene material is at least one of graphene and graphene oxide.
3. The mineral matter graphene meltblown cloth according to claim 2, wherein the graphene material has a particle size of 2.0-2.5 nm.
4. The mineral matter graphene meltblown cloth according to claim 3, wherein the nano silver has a particle size of 0.8-2.6 nm.
5. The mineral graphene meltblown fabric according to claim 4, wherein the stone needle has a particle size of 2.0-4.2 nm.
6. The mineral graphene meltblown of any of claims 1-5, wherein the stabilizer is organotin; the dispersing agent is at least one of triethylhexyl phosphoric acid, methyl amyl alcohol, cellulose derivatives, polyacrylamide and fatty acid polyglycol ester; the coupling agent is at least one of butyl titanate and isopropyl titanate.
7. The preparation method of the mineral graphene melt-blown fabric is characterized by comprising the following steps:
s1, respectively weighing the following components in parts by weight: 65-75 parts of polypropylene resin, 35-45 parts of polyethylene terephthalate, 5-10 parts of graphene material, 1-5 parts of nano silver, 2-5 parts of stone needle, 15-25 parts of titanium dioxide, 0.2-0.8 part of stabilizer, 0.5-1.5 parts of coupling agent and 0.3-1.2 parts of dispersing agent;
s2, sequentially adding the polypropylene resin, the polyethylene terephthalate, the graphene material, the nano silver, the stone needle, the titanium dioxide, the stabilizer, the coupling agent and the dispersing agent in the S1 into a mixing box, and stirring and mixing to obtain a raw material mixture;
s3, adding the raw material mixture obtained in the S2 into a screw extruder for melt extrusion to obtain a melt;
s4, filtering the melt obtained in the step S3 by a double-piston filtering device to obtain a filtered melt;
s5, drafting the fine flow of the melt obtained in the S4 by high-speed hot air flow, mixing room-temperature air at two sides into the hot air flow for drafting, cooling and forming the fine flow, and obtaining superfine fibers;
and S6, collecting the superfine fibers obtained in the step S5 on a condensation net curtain, mutually bonding the superfine fibers together by utilizing self waste heat, trimming the superfine fibers by using a trimming machine, and winding the superfine fibers on a winding roller to obtain melt-blown fabrics with various specifications.
8. The preparation method of the mineral matter graphene melt-blown fabric according to claim 7, wherein when the raw material mixture is put into a screw extruder in S3, the temperature of a screw and a die head of the screw extruder is 180-230 ℃, the temperature of a 1 zone is 205-215 ℃, the temperature of a 2 zone is 215-225 ℃, the temperature of a 3 zone is 225-235 ℃, the temperature of a flange is 225-235 ℃, the elbow temperature is 225-235 ℃, and the dominant frequency of the screw is 10-20 Hz.
9. The method according to claim 9, wherein when the melt stream is drawn by the high-speed hot air flow in S5, the temperature of the hot air is 270 to 280 ℃ and the pressure of the hot air is 0.2 to 0.4 MPa.
10. The method for preparing mineral graphene meltblown according to any one of claims 7-9, wherein a vacuum suction device is disposed at a lower portion of the gel sheet in S6, so that the fibers are collected on the gel sheet and thermally bonded to form a nonwoven fabric by itself; the receiving distance of the net formation is 10-20 cm, and the net formation speed is 20-50 cm/s.
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