CN110936676A - Filter layer body for efficient dust mask - Google Patents

Filter layer body for efficient dust mask Download PDF

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Publication number
CN110936676A
CN110936676A CN201911200352.0A CN201911200352A CN110936676A CN 110936676 A CN110936676 A CN 110936676A CN 201911200352 A CN201911200352 A CN 201911200352A CN 110936676 A CN110936676 A CN 110936676A
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CN
China
Prior art keywords
filter layer
coffee carbon
composite
yarn
copper salt
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Granted
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CN201911200352.0A
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Chinese (zh)
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CN110936676B (en
Inventor
杨竹强
杨建强
杨晶
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Handa Hongyong Protecting & Cleaning Articles Co Ltd
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Handa Hongyong Protecting & Cleaning Articles Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00—Materials specially adapted for outerwear
    • A41D31/04—Materials specially adapted for outerwear characterised by special function or use
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00—Materials specially adapted for outerwear
    • A41D31/04—Materials specially adapted for outerwear characterised by special function or use
    • A41D31/06—Thermally protective, e.g. insulating
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00—Materials specially adapted for outerwear
    • A41D31/04—Materials specially adapted for outerwear characterised by special function or use
    • A41D31/26—Electrically protective, e.g. preventing static electricity or electric shock
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/047—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of fibres or filaments
    • 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
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
    • 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
    • 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
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/728—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/07—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
    • D06M11/11—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with halogen acids or salts thereof
    • D06M11/13—Ammonium halides or halides of elements of Groups 1 or 11 of the Periodic Table
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/51—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof
    • D06M11/54—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof with sulfur dioxide; with sulfurous acid or its salts
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/77—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
    • D06M11/79—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/83—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with metals; with metal-generating compounds, e.g. metal carbonyls; Reduction of metal compounds on textiles
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/402—Amides imides, sulfamic acids
    • D06M13/432—Urea, thiourea or derivatives thereof, e.g. biurets; Urea-inclusion compounds; Dicyanamides; Carbodiimides; Guanidines, e.g. dicyandiamides
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms
    • D06M13/51—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond
    • D06M13/513—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond with at least one carbon-silicon bond
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D2400/00—Functions or special features of garments
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D2400/00—Functions or special features of garments
    • A41D2400/26—UV light protection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/106—Carbon fibres, e.g. graphite fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/21—Anti-static
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/212—Electromagnetic interference shielding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/71—Resistive to light or to UV
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • B32B2307/7145—Rot proof, resistant to bacteria, mildew, mould, fungi
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    • B32—LAYERED PRODUCTS
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    • B32B2571/00—Protective equipment
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/32—Polyesters

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Filtering Materials (AREA)

Abstract

The invention relates to the technical field of new materials, in particular to a filter layer body for a high-efficiency dustproof mask, which has a structure that the following layers are arranged in sequence from outside to inside: an outer layer of non-woven fabric; an aloe mannan porous membrane layer; a composite filter layer; an aloe mannan nanoporous inner membrane layer; an inner layer of pure cotton gauze; the composite filter layer is formed by weaving main yarns and auxiliary yarns into a fabric in a mixed mode, and the composite coffee carbon fibers obtained by sequentially processing modified coffee carbon/polycarbonate composite coffee carbon fibers by a copper salt treating agent and a functional negative oxygen ion auxiliary agent solution are used as the main yarns; allyl hydantoin nano-fiber is used as a secondary yarn. The utility model provides a filter body can high-efficient dustproof, has concurrently simultaneously and radiates far infrared, shielding electromagnetic wave, static gets rid of, prevents that the beneficial electromagnetic effect of ultraviolet ray etc. is to the human body, special application fields such as available high altitude cold areas, the big place of electromagnetic radiation volume.

Description

Filter layer body for efficient dust mask
Technical Field
The invention relates to the technical field of new materials, in particular to a filter layer body for a high-efficiency dustproof mask.
Background
With the rapid development of the scientific and technological industry, a large amount of smoke is emitted by coal and gas or fuel oil in various industrial processes such as power generation, metallurgy, petroleum, chemistry, textile printing and dyeing and the like, and a large amount of smoke is emitted by fuel and gas or fuel oil in the processes of heat supply and cooking, and tail gas is emitted to the atmosphere when various vehicles use fuel in the process of operation, so that haze weather frequently occurs in various parts of the country in recent years, particularly in the first-line large cities such as Beijing, Nanjing and the like, namely, a large number of fine particulate matters (also called fine particles, fine particles and PM 2.5) exist in the air, can be suspended in the air for a long time, and the higher content concentration. The PM2.5 has small particle size, large area, strong activity, easy attachment of toxic and harmful substances (such as heavy metals, microorganisms and the like), and larger influence on human health and atmospheric environment quality. The mask is a sanitary article, generally refers to a device which is worn at the mouth and nose part and used for filtering air entering the mouth and nose so as to prevent harmful gas, smell, spray and tiny particles such as PM2.5 and the like from entering the mouth and nose of a wearer, and is made of gauze or paper and the like. The mask has a certain filtering function on air entering the lung, and has a very good effect when being worn in respiratory infectious diseases and working in environments polluted by dust and the like. However, the traditional mask is integrally formed, does not have the function of selective filtering according to the environmental pollution degree, cannot be detached for cleaning or replacement, and reduces the service life of the mask.
The above background disclosure is only for the purpose of assisting understanding of the inventive concept and technical solutions of the present invention, and does not necessarily belong to the prior art of the present patent application, and should not be used for evaluating the novelty and inventive step of the present application in the case that there is no clear evidence that the above content is disclosed at the filing date of the present patent application.
Disclosure of Invention
The invention aims to provide a filter layer body for a high-efficiency dustproof mask, which can efficiently prevent dust, has electromagnetic effects beneficial to a human body such as far infrared ray radiation, electromagnetic wave shielding, static electricity removal and ultraviolet ray prevention, and can be applied to special application fields such as high-altitude cold regions and places with large electromagnetic radiation quantity.
In order to achieve the above object, the present invention adopts the following aspects.
In one aspect, the present invention provides a composite filter layer, which is formed by interweaving a main yarn and a secondary yarn into a fabric, wherein:
modified coffee carbon/polycarbonate composite coffee carbon fibers are sequentially passed through
Copper salt treating agent treatment, and
the composite coffee carbon fiber obtained by processing the functional negative oxygen ion assistant solution is used as a main yarn;
the allyl hydantoin nanofiber is used as a secondary yarn, and the weight of each unit length of the secondary yarn is 1/5-2/3 of the weight of each unit length of the primary yarn;
the composite filter layer has a weaving structure comprising a warp yarn A composed of the main yarn, a weft yarn A composed of the main yarn, a warp yarn B composed of the auxiliary yarn, and a weft yarn B composed of the auxiliary yarn;
the weaving density coefficient of the fabric is 10-14.
The composite filter layer is formed by blending modified coffee carbon/polycarbonate composite coffee carbon fibers and allyl hydantoin nanofibers, has excellent antibacterial, warm-keeping and heat-insulating functions of the coffee carbon fibers, and also has the advantages of softness, skin friendliness and smooth hand feeling of polycarbonate.
In some embodiments, the modified coffee carbon is prepared by the steps of: cleaning coffee residues, grinding the coffee residues to be not less than 300 meshes, soaking the coffee residues in acetic acid solution, washing the coffee residues to be neutral, drying the coffee residues, uniformly mixing the coffee residues with nano titanium dioxide and silver ions (the content of the silver ions in the silver nitrate is the mass fraction or mass ratio of the mass of the silver in the silver nitrate relative to the total mass, and the same below) according to the ratio of 100:3 to 10:1 to 2, adding a silane coupling agent with the total solid content of 1.1 to 1.3 wt%, fully grinding the mixture for at least 30min, placing the ground mixture in a vacuum furnace with the vacuum degree of at least 0.02MPa, heating the vacuum furnace to 350 to 380 ℃ at the heating rate of 3 to 4 ℃/min, preserving the temperature for at least 30min, naturally cooling the ground mixture to room temperature, and crushing. The acid treatment obviously increases the specific surface area, the porosity and the surface roughness of the coffee grounds, improves the binding capacity of the coffee grounds and the polyester, then the coffee grounds are mixed with nano titanium dioxide and silver ions and modified by a silane coupling agent, and the nano titanium dioxide particles and the silver ions are attached to the surface, folds, ridge-shaped structures and internal pores of the coffee grounds, so that the antibacterial capacity of the coffee grounds is obviously increased; the coffee grounds have more folds, ridge-shaped structures and internal pore structures on the surface, and can store air, so that the coffee grounds have excellent heat preservation and insulation effects.
In some embodiments, in the step of preparing the modified coffee carbon, the coffee grounds are selected from coffee grounds waste in the process of preparing coffee, roasted coffee grounds. In a preferred embodiment, the coffee grounds are ground coffee beans or coffee grounds.
In some embodiments, in the step of preparing the modified coffee carbon, the silane coupling agent may be one of vinyltriethoxysilane, vinyltrimethoxysilane and vinyltris (β -methoxyethoxy) silane.
In some embodiments, the polycarbonate is a bisphenol A polycarbonate having a relative molecular weight of 5000 to 8000D.
In some embodiments, the modified coffee carbon/polycarbonate composite coffee carbon fiber is prepared by the steps of: mixing the modified coffee carbon, the polycarbonate, the antioxidant, the lubricant, the plasticizer and the compatibilizer, putting the mixture into a high-speed stirrer for stirring and mixing for at least 10min, and then putting the mixture into a mixing roll for mixing for at least 5min, wherein the mixing temperature is 210-250 ℃; and putting the obtained mixed material into an extruder for extrusion and granulation to obtain composite granules, and carrying out melt spinning to obtain the modified coffee carbon/polycarbonate composite coffee carbon fiber. The modified coffee carbon and the polycarbonate are compounded and granulated, and then the composite coffee carbon fiber is prepared through melt spinning, so that the fusion of the modified coffee carbon and the polycarbonate is improved, the compatibility of a fiber system is improved, and the spinning is facilitated.
Further, the weight ratio of the modified coffee carbon to the polycarbonate to the antioxidant to the lubricant to the plasticizer to the compatibilizer is 100: 100-150: 0.1-0.5: 0.05-0.2: 0.12-0.15: 0.13-0.15.
Further, the antioxidant is at least one of phosphite antioxidant 168, hindered phenol antioxidant 1010, hindered phenol antioxidant 1098 and hindered phenol antioxidant 1076.
Further, the lubricant is a polypropylene wax WPP type.
Further, the plasticizer is at least one of citric acid ester, phosphoric acid ester, ether diester, carboxylic acid ester, dicarboxylic acid ester, and ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, propylene glycol, 1, 5-pentanediol, 1, 6-hexanediol, 2, 4-trimethyl-1, 6-hexanediol, 1, 3-cyclohexanedimethanol, polyethylene oxide, and polypropylene oxide.
Further, the compatibilizer is at least one of polybutylene succinate, polyethylene terephthalate, polybutylene terephthalate, or a polymer (including a copolymer) obtained by polymerizing ethylene, propylene, butene, pentene, hexene, 2-methyl-1-propene, 3-methyl-1-pentene, 4-methyl-1-pentene, and 5-methyl-1-hexene.
Further, the melt spinning is: and carrying out melt spinning by a single-screw spinning machine, wherein the spinning temperature is 190-250 ℃.
Further, the melt spinning process further comprises
Winding: the winding speed is 600-1500 m/min; and
drafting: the temperature of the hot plate is 70-140 ℃, and the temperature of the hot plate is as follows: 70-150 ℃; the draft multiple is: 3-6 times.
In some embodiments, the copper salt treatment agent comprises:
12-30 wt% of copper salt, specifically at least one of copper (II) sulfate, copper (II) chloride, copper (II) nitrate, copper (II) acetate and copper (II) sulfate ammonium salt;
1.5-5.0 wt% of metal salt, specifically inorganic acid salt or organic acid salt of at least one metal of gold, silver, platinum, nickel, manganese, cobalt, chromium, zinc, palladium, rhodium, ruthenium, osmium and iridium;
10-25 wt% of a reducing agent, specifically at least one of metal copper, metal iron, metal zinc, hydroxylamine, ferrous sulfate, ammonium vanadate, furfural, sodium hypophosphite, sodium bisulfite, glucose and phenolic compounds;
10-30 wt% of a sulfide, specifically at least one of sodium sulfide, sulfur dioxide, sulfurous acid, sodium sulfite, sodium bisulfite, sodium metabisulfite, hyposulfurous acid, sodium hyposulfite, sodium thiosulfate, potassium thiosulfate, ammonium thiosulfate, thiourea dioxide, hydrogen sulfide and sodium formaldehyde sulfoxylate;
1.2-3.5 wt% of a catalyst, specifically at least one of magnesium chloride, potassium chloride, calcium chloride, zinc acetate, ammonium chloride, ammonium sulfate, ammonium carbonate and ammonium nitrate;
1.5 to 5.0 wt% of polyvalent ammonium, at least one of methylenediamine, ethylenediamine, trimethylenediamine, tetramethylenediamine, pentamethylenediamine, hexamethylenediamine, heptamethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine and pentaethylenehexamine; and
2.0 to 8.0 wt% of an alkaline compound, specifically at least one selected from the group consisting of sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, sodium hydrogencarbonate and potassium hydrogencarbonate.
In some embodiments, the modified coffee carbon/polycarbonate composite coffee carbon fiber treated with the copper salt treating agent is specifically:
introducing at least one functional group selected from a thiol group, a thiocarbonyl group, a thiourea group, an azole group, an amino group, a cyano group and an amide group into the surface of the modified coffee carbon/polycarbonate composite coffee carbon fiber;
the modified coffee carbon/polycarbonate composite coffee carbon fiber containing the functional group is treated by a copper salt treating agent, and specifically the functional group is combined with copper sulfide and metal sulfide through coordination bonds.
Further, the functional group accounts for 1.5-5.0 wt% of the total weight of the modified coffee carbon/polycarbonate composite coffee carbon fiber.
According to an embodiment of the present invention, the modified coffee carbon/polycarbonate composite coffee carbon fiber has a far infrared radiation rate of 0.904% or more and a far infrared radiation energy of 365W/m after being treated with the copper salt treatment agent at 37 ℃ under the conditions of the present invention2μ m or more, and has a far infrared ray emissivity of 0.895% or more and a far infrared ray radiation energy of 332W/m after washing for 40 times2Mum or more, which shows that the treatment of the copper salt composition impartsThe modified coffee carbon/polycarbonate composite coffee carbon fiber has excellent electromagnetic effects of radiating far infrared rays, shielding electromagnetic waves, removing static electricity and the like which are beneficial to human bodies.
In some embodiments, the functional oxygen anion adjuvant solution treatment specifically comprises the steps of:
1) heating the amorphous silicon dioxide to 80 ℃ and keeping for 2-5 h;
2) extracting the baked and dried magnesium-rich fibrous silicate and ion-adsorption type rare earth ore by using an acidic extractant, and baking at a high temperature after extraction, wherein the removal rate of radioactive elements is more than 95%;
3) crushing and uniformly mixing the dried hydrous magnesium silicate, the magnesium-rich fibrous silicate and the ion adsorption type rare earth ore which are subjected to radioactive element removal and the silicon dioxide subjected to high-temperature treatment to obtain negative oxygen ion functional powder;
4) the preparation method comprises the following steps of uniformly mixing purified water, negative oxygen ion functional powder, a neutral dispersant, a neutral adhesive and a neutral curing agent according to a ratio of 100: 10-15: 4-5: 4-6: 5-6, and fully fusing to obtain a negative oxygen ion functional additive solution;
5) soaking the modified coffee carbon/polycarbonate composite coffee carbon fiber treated by the copper salt treating agent into the solution in the step 4) for more than 30min at the temperature of 40-50 ℃, dewatering and drying, and then weaving.
The negative oxygen ion functional powder is prepared by adopting ion adsorption type rare earth ore, magnesium-rich fibrous silicate, hydrous magnesium silicate and silicon dioxide, the material varieties are greatly reduced, the raw material cost is reduced, the processing technology is simple, the induction quantity of negative oxygen ions is large, the content of soluble silicic acid in the silicon dioxide raw material is effectively reduced by utilizing heating treatment, the treated silicon dioxide has more excellent chemical characteristics and physical characteristics, the negative oxygen ion functional powder has stronger suspension property and adsorbability, the half life of radioactive rays of α rays is prolonged, the magnesium-rich fibrous silicate and the ion adsorption type rare earth ore are fully extracted and roasted at high temperature, the radioactive elements are removed, and the composite filter layer is beneficial to human healthThe negative oxygen ions are induced by ionization, and the induction amount is more than 1500/cm3The mask prepared by the method can obviously show the air and environment near the face on the basis of isolating the micro dust, and is beneficial to the health of human bodies; more particularly, the inventor has also surprisingly found that the composite filter layer treated by the functional negative oxygen ion assistant solution has more excellent electromagnetic effect on the basis of the treatment of the copper salt treatment agent, and the effects of emitting far infrared rays, shielding electromagnetic waves, removing static electricity and the like can be further improved, so that the filter layer body for the high-efficiency dustproof mask based on the composite filter layer and the mask prepared from the filter layer body are more heat-insulating, warm-keeping, electromagnetic wave shielding and antistatic, can be used in special application places such as high-altitude cold regions, places with larger electromagnetic radiation and the like, and broadens the application field of the mask.
Further, the acidic extractant in the step 2) is one of naphthenic acid tertiary carbonic acid, di (2-ethylhexyl) phosphoric acid and 5, 8-dinonyl-2-naphthalene sulfonic acid.
Further, the weight of the acidic extracting agent in the step 2) is 6-10 times of the sum of the weight of the magnesium-rich fibrous silicate and the weight of the ion-adsorption type rare earth ore, and the concentration of the acidic extracting agent is 10-12 wt%.
Further, the weight ratio of the magnesium silicate hydrate, the magnesium-rich fibrous silicate without radioactive elements, the ion-adsorption type rare earth ore and the silicon dioxide after high-temperature treatment in the step 3) is 10: 8-10: 5-20: 2-5.
Further, the hydrous magnesium silicate, the magnesium-rich fibrous silicate after removing radioactive elements and the ion adsorption type rare earth ore in the step 3) and the silicon dioxide after high-temperature treatment are crushed to the particle size of less than 200 mu m.
In another aspect, the present invention further provides a filter layer for a high-efficiency dustproof mask, which comprises a structure comprising the following layers arranged in sequence from outside to inside:
an outer layer of non-woven fabric;
an aloe mannan porous membrane layer;
the composite filter layer of the above aspect;
an aloe mannan nanoporous inner membrane layer;
the inner layer of the pure cotton gauze.
In the filter layer body for the high-efficiency dustproof mask, the non-woven fabric outer layer at the outermost layer can isolate large-particle dust, and has windproof and warm-keeping functions, the aloe mannan porous membrane material is safe and stable, is easy to biodegrade, can further isolate dust, and plays a dustproof role, the inner layer is a composite filter layer woven by modified coffee carbon/polycarbonate composite coffee carbon fibers and allyl hydantoin nanofibers, the composite filter layer can endow the filter layer body with excellent antibacterial, deodorant, heat-storage and heat-preservation functions as described above, and simultaneously has electromagnetic effects beneficial to human bodies such as far infrared ray radiation, electromagnetic wave shielding, static electricity removal, ultraviolet ray prevention and the like, the higher weaving density coefficient can further play a dustproof role, and the aloe mannan nano porous inner membrane layer at the secondary inner layer utilizes the special gel property of aloe mannan, through the application of the electric field technology, the nano porous membrane is obtained, the specific porous structure of the nano porous membrane causes the extremely high specific surface area and porosity and the extremely low density of the nano porous membrane, and the nano porous membrane is attached with various spatial three-dimensional network structures, the structures endow the specific heat insulation performance, surface interface effect and doping adsorption performance of the nano porous membrane, and the filter layer body for the mask has an efficient dustproof effect.
In some embodiments, the outer layer of the non-woven fabric is 25 to 35g/m2The nonwoven fabric layer of (2).
In some embodiments, the aloe mannan porous membrane layer is prepared by: taking aloe mannan fine powder and ultrapure water according to the ratio of 1.25-1.55: 100, homogenizing and swelling at constant temperature, introducing into a mold, pretreating at-20 ℃ for 4h, and then freeze-drying at-50 ℃ under 10Pa in vacuum to prepare the aloe mannan porous membrane.
Further, in the preparation step of the aloe mannan porous membrane layer, the constant-temperature homogeneous swelling refers to: placing the aloe mannan solution in a water bath kettle with a constant temperature of 42-45 ℃, and stirring for 60min at a speed of 500r/min by using a magnetic stirrer.
In some embodiments, the aloe mannan nanoporous intima layer is prepared by:
1) taking aloe mannan fine powder and ultrapure water according to the proportion of 1.25-1.55: 100, homogenizing and swelling at constant temperature;
2) filling the aloe mannan solution after constant temperature homogeneous swelling into a 10mL syringe with the inner diameter of a needle head of 0.6mm, and then putting into high-voltage electric field equipment to prepare a nano membrane material;
3) pretreating the nano-film material at-20 deg.C for 4h, and vacuum freeze-drying at-50 deg.C under 5Pa to obtain the final product.
Further, in the preparation step of the aloe mannan nano porous inner membrane layer, the constant temperature homogeneous swelling refers to: placing the aloe mannan solution in a water bath kettle with a constant temperature of 42-45 ℃, and stirring for 60min at a speed of 500r/min by using a magnetic stirrer.
Further, in the preparation step of the aloe mannan nano porous inner membrane layer, the conditions for preparing the nano membrane material in the high-voltage electric field equipment are as follows: the temperature is 35-45 ℃, the relative humidity is 30%, the spinning distance is 13cm, the spinning voltage is 30kV, the spinning flow rate is 2.4mL/h, and the spinning time is 10 min.
In some embodiments, the inner layer of the purified cotton gauze comprises 1-2 layers, and the grammage of the purified cotton gauze is 35-40 g/m2。
In another aspect, the present invention also provides a mask comprising the composite filter according to the above invention and/or the filter for a high efficiency dust mask according to another aspect.
The invention has the beneficial effects that:
1) the acid treatment of the coffee grounds obviously increases the specific surface area, the porosity and the surface roughness of the coffee grounds, improves the binding capacity of the coffee grounds and the polyester, is compounded with nano titanium dioxide and silver ions and modified by a silane coupling agent, and attaches the nano titanium dioxide particles and the silver ions to the surface, folds, ridge-shaped structures and internal pores of the coffee grounds, thus obviously increasing the antibacterial capacity of the coffee grounds; the air can be stored in the folds, ridge-shaped structures and internal pore structures on the surface of the coffee grounds, so that the heat preservation and insulation effect is excellent;
2) copper salt treating agentThe coffee carbon fiber has antibacterial, deodorant, heat-storing and heat-insulating effects, and electromagnetic effects of radiating far infrared ray, shielding electromagnetic wave, and removing static electricity, with far infrared radiation rate of 0.904% or more and far infrared radiation energy of 365W/m2μ m or more, and has a far infrared ray emissivity of 0.895% or more and a far infrared ray radiation energy of 332W/m after washing for 40 times2μ m or more;
3) the composite filter layer can ionize and induce negative oxygen ions to the space continuously, and the induction amount is more than 1950/cm3The mask prepared by the method can obviously show the air and environment near the face on the basis of isolating the micro dust, and is beneficial to the health of human bodies;
4) the composite filter layer treated by the functional negative oxygen ion assistant solution can have more excellent electromagnetic effect on the basis of treatment of a copper salt treating agent, and the effects of emitting far infrared rays, shielding electromagnetic waves, removing static electricity and the like can be further improved, so that the filter layer body for the high-efficiency dustproof mask based on the composite filter layer body and the mask prepared from the filter layer body are more heat-insulating, warm-keeping, electromagnetic wave shielding and antistatic, can be used in special application places such as high-altitude cold regions, places with larger electromagnetic radiation and the like, and widens the application field of the mask;
5) the filter layer body for the high-efficiency dustproof mask comprises a non-woven fabric outer layer, an aloe mannan porous membrane layer, a composite filter layer woven by modified coffee carbon/polycarbonate composite coffee carbon fibers and allyl hydantoin nanofibers, an aloe mannan nano porous inner membrane layer and a pure cotton gauze inner layer, and has high-efficiency dustproof effect, antibacterial, deodorizing, heat storage and heat preservation effects, electromagnetic effects such as far infrared ray radiation, electromagnetic wave shielding, static electricity removal and ultraviolet ray prevention and the like which are beneficial to a human body.
The invention adopts the technical scheme to provide the model essay, makes up the defects of the prior art, and has reasonable design and convenient operation.
Drawings
In order to make the aforementioned and other objects, features, and advantages of the invention, as well as others which will become apparent, reference is made to the following description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a diagram illustrating the statistics of negative oxygen ion release according to various embodiments of the present invention;
FIG. 2 is a schematic diagram of a fitted curve of statistical results of negative oxygen ion release amount of the filter layer body based on treatment time of different copper salt treatment agent solutions.
Detailed Description
Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The present invention uses the methods and materials described herein; other suitable methods and materials known in the art may be used. The materials, methods, and examples described herein are illustrative only and are not intended to be limiting. All publications, patent applications, patents, provisional applications, database entries, and other references mentioned herein, and the like, are incorporated by reference herein in their entirety. In case of conflict, the present specification, including definitions, will control.
All percentages, parts, ratios, etc., are by weight unless otherwise indicated.
Herein, the term "made from … …" is equivalent to "comprising". As used herein, the terms "comprises," "comprising," "includes," "including," "has," "having," "contains," or any other variation thereof, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.
The conjunction "consisting of … … does not include any elements, steps or components not expressly listed. If present in a claim, the conjunction will limit the claim to the described materials and not to materials not described, but will still include impurities normally associated with those described materials. When the conjunction "consisting of … …" appears in the characterizing portion of the claim, rather than in the immediately preceding portion, it is limited to the elements set forth in the characterizing portion; other elements are not excluded from the claim as a whole.
The conjunction "consisting essentially of … …" is used to define a composition, method, or apparatus that includes additional materials, steps, features, components, or elements in addition to those materials, steps, features, components, or elements that are literally set forth, provided that such additional materials, steps, features, components, or elements do not materially affect the basic and novel characteristics of the claimed invention. The term "consisting essentially of … …" is in the intermediate zone between "comprising" and "consisting of … …".
The conjunction "substantially no/includes" or "substantially no" component means that the thermoplastic composition of the present invention should contain less than 1 wt%, or less than 0.5 wt%, or less than 0.1 wt%, or 0 wt% of the component, based on the total weight of the thermoplastic composition.
The term "comprising" is intended to include embodiments encompassed by the terms "consisting essentially of … …" and "consisting of … …". Similarly, the term "consisting essentially of … …" is intended to include embodiments encompassed by the term "consisting of … …".
When an amount, concentration, or other value or parameter is given as either a range, preferred range or a list of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when a range of "1 to 5" is described, the described range should be understood to include ranges of "1 to 4", "1 to 3", "1 to 2 and 4 to 5", "1 to 3 and 5", and the like. Where numerical ranges are described herein, unless otherwise stated, the ranges are intended to include the endpoints of the ranges, and all integers and fractions within the ranges.
When the term "about" is used to describe a numerical value or an end point value of a range, the disclosure should be understood to include the specific value or end point referred to.
Furthermore, "or" means "or" unless expressly indicated to the contrary, rather than "or" exclusively. For example, condition a "or" B "applies to any of the following conditions: a is true (or present) and B is false (or not present), a is false (or not present) and B is true (or present), and both a and B are true (or present).
In addition, the indefinite articles "a" and "an" preceding an element or component of the invention are intended to mean no limitation on the number of occurrences (i.e., occurrences) of the element or component. Thus, "a" or "an" should be understood to include one or at least one and the singular forms of an element or component also include the plural unless the singular is explicitly stated.
The materials, methods, and examples described herein are illustrative only and not intended to be limiting unless otherwise specified. Although methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present invention, suitable methods and materials are described herein.
The present invention is described in detail below.
Example 1: a filter layer body structure for a high-efficiency dustproof mask comprises:
the embodiment provides a filter layer body for a high-efficient dust mask, which comprises a structure that is arranged by the following layers from outside to inside in sequence:
an outer layer of nonwoven fabric of 30g/m2The non-woven fabric layer of (4);
an aloe mannan porous membrane layer;
a composite filter layer;
an aloe mannan nanoporous inner membrane layer;
an inner layer of purified cotton gauze comprising 2 layers, and the grammage of the purified cotton gauze is 40g/m2。
Specifically, the aloe mannan porous membrane layer in this example was prepared by the following steps:
1) taking aloe mannan fine powder and ultrapure water according to the proportion of 1.5: 100;
2) placing the aloe mannan solution in a water bath kettle with a constant temperature of 44 deg.C, and stirring with a magnetic stirrer at 500r/min for 60 min;
3) homogenizing at constant temperature, swelling, introducing into a mold, pretreating at-20 deg.C for 4 hr, and vacuum freeze drying at-50 deg.C under 10Pa to obtain porous Aloe mannan membrane.
Specifically, in this embodiment, the composite filter layer is formed by weaving a main yarn and a sub-yarn into a fabric, wherein:
modified coffee carbon/polycarbonate composite coffee carbon fibers are sequentially passed through
Copper salt treating agent treatment, and
the composite coffee carbon fiber obtained by processing the functional negative oxygen ion assistant solution is used as a main yarn;
1/2 having allylhydantoin nanofibers as secondary yarns, the weight per unit length of said primary yarns being the weight per unit length;
the composite filter layer has a weaving structure comprising warp yarns A and warp yarns B, wherein the warp yarns A are composed of the main yarns, and the warp yarns B are composed of the auxiliary yarns;
the fabric weave density factor is 14.
More specifically, the modified coffee carbon/polycarbonate composite coffee carbon fiber in the composite filter layer is prepared by the following steps:
1) cleaning ground coffee beans, grinding the coffee beans to 400 meshes, soaking the coffee beans in acetic acid solution, washing the coffee beans to be neutral, drying the coffee beans, uniformly mixing the coffee beans with nano titanium dioxide and silver ions according to a ratio of 100:5:1, adding a silane coupling agent vinyl trimethoxy silane with the total solid content of 1.3 wt%, fully grinding the coffee beans for 45min, placing the coffee beans in a vacuum furnace with the vacuum degree of 0.02MPa, heating the coffee beans to 360 ℃ at the heating rate of 4 ℃/min, preserving the heat for 30min, naturally cooling the coffee beans to the room temperature, and crushing the coffee beans to the particle size of about 0.8 mu m to obtain modified coffee carbon;
2) mixing 100 parts by weight of modified coffee carbon, 120 parts by weight of 6000-8000D bisphenol A polycarbonate, 0.12 part by weight of hindered phenol antioxidant 1076, 0.08 part by weight of polypropylene wax WPP type, 0.15 part by weight of 1, 6-hexanediol and 0.14 part by weight of polyethylene terephthalate, putting into a high-speed mixer for stirring and mixing for 10min, and then putting the mixture into a mixing roll for mixing for 5min at the mixing temperature of 240 ℃; putting the obtained mixed material into an extruder for extrusion and granulation to obtain composite granules;
3) melt spinning at 235 ℃ by a single-screw spinning machine to obtain the modified coffee carbon/polycarbonate composite coffee carbon fiber, then winding at the speed of 1000m/min, and finishing the drafting treatment under the conditions of the hot plate temperature of 140 ℃, the hot plate temperature of 120 ℃ and the drafting multiple of 5 times.
More specifically, the copper salt treatment agent treatment is:
1) firstly, processing composite coffee carbon fibers by using a silane coupling agent obtained by reacting imidazole and other azole compounds with 3-mercaptopropyltrimethoxysilane at 60 ℃ for 60min, and introducing azole groups and thiol groups into the composite coffee carbon fibers, wherein the content of the azole groups is about 1.0 wt%, and the content of the thiol groups is about 1.0 wt%;
2) then compounding a copper salt treating agent: 25% by weight of a copper (II) chloride salt, 5.0% by weight of a zinc sulfate salt, 25% by weight of metallic zinc, 15% by weight of sodium sulfite, 15% by weight of thiourea dioxide, 3.5% by weight of calcium chloride, 5.0% by weight of tetraethylenepentamine and 6.5% by weight of sodium hydrogen carbonate; adding distilled water with the solid content being 30 times of that of the raw materials and uniformly mixing;
3) the modified coffee carbon/polycarbonate composite coffee carbon fiber containing the functional group is treated by a copper salt treating agent, and specifically, the composite coffee carbon fiber is soaked in a copper salt treating agent solution with the weight of 4 times of that of the composite coffee carbon fiber, reacts for 3 hours at the temperature of 60 ℃, is washed to be neutral at the temperature of 45 ℃ and is dried to obtain the modified coffee carbon/polycarbonate composite coffee carbon fiber.
More specifically, the functional negative oxygen ion assistant solution treatment is as follows:
1) heating the amorphous silica to 80 ℃ and holding for 4 h;
2) extracting the baked and dried magnesium-rich fibrous silicate and the ion-adsorption type rare earth ore by using an acidic extractant, namely naphthenic acid versatic acid, and baking at high temperature after extraction, wherein the removal rate of radioactive elements is over 95 percent;
3) crushing 10 parts by weight of dried hydrous magnesium silicate, 10 parts by weight of magnesium-rich fibrous silicate after radioactive element removal, 12 parts by weight of ion adsorption type rare earth ore and 4 parts by weight of silicon dioxide after high-temperature treatment to about 150 mu m of particle size and uniformly mixing to obtain negative oxygen ion functional powder;
4) mixing purified water, negative oxygen ion functional powder, a neutral dispersant, a neutral adhesive and a neutral curing agent uniformly according to a ratio of 20:2:1:1:1 and fully fusing to obtain a negative oxygen ion functional auxiliary agent solution;
5) soaking the modified coffee carbon/polycarbonate composite coffee carbon fiber treated by the copper salt treating agent into the solution in the step 4) for 45min at the temperature of 50 ℃, and weaving after dewatering and drying.
Wherein the concentration of the acidic extractant is 10 wt%, and the weight of the acidic extractant is 8 times of the sum of the weight of the magnesium-rich fibrous silicate and the weight of the ion-adsorption type rare earth ore.
Specifically, the aloe mannan nanoporous intima layer in this example was prepared by the following steps:
1) taking aloe mannan fine powder and ultrapure water according to the proportion of 1.25-1.55: 100, homogenizing and swelling at constant temperature;
2) filling the aloe mannan solution after constant temperature homogeneous swelling into a 10mL syringe with the inner diameter of a needle head of 0.6mm, and then putting into high-voltage electric field equipment to prepare a nano membrane material;
3) pretreating the nano-film material at-20 deg.C for 4h, and vacuum freeze-drying at-50 deg.C under 5Pa to obtain aloe mannan nano-porous film;
wherein the constant-temperature homogeneous swelling refers to: placing the aloe mannan solution in a water bath kettle with a constant temperature of 42 ℃, and stirring for 60min at a speed of 500r/min by using a magnetic stirrer;
the conditions for preparing the nano-film material in the high-voltage electric field equipment are as follows: the temperature is 40 ℃, the relative humidity is 30%, the spinning distance is 13cm, the spinning voltage is 30kV, the spinning flow rate is 2.4mL/h, and the spinning time is 10 min.
Example 2: another kind of high-efficient filter layer body structure for dust mask:
this example provides another filter layer structure for a high-efficiency dust mask, which is substantially the same as example 1, except that the filter layer structure of this example does not include an aloe mannan porous membrane layer; the rest of the structure and method are the same as in example 1.
Example 3: another kind of high-efficient filter layer body structure for dust mask:
the present embodiment provides another filter layer structure for a high-efficiency dust mask, which is substantially the same as embodiment 1, except that the filter layer structure of the present embodiment does not include a composite filter layer; the rest of the structure and method are the same as in example 1.
Example 4: another kind of high-efficient filter layer body structure for dust mask:
the present example provides another filter layer structure for a high-efficiency dust mask, which is substantially the same as example 1, except that the filter layer structure of the present example does not include an aloe mannan nanoporous inner membrane layer; the rest of the structure and method are the same as in example 1.
Example 5: another kind of high-efficient filter layer body structure for dust mask:
the present embodiment provides another filter structure for a high-efficiency dust mask, which is substantially the same as embodiment 1, except that the composite filter layer in this embodiment uses polycarbonate fiber as a main yarn, and does not contain a coffee carbon structure; the rest of the structure and method are the same as in example 1.
Example 6: another kind of high-efficient filter layer body structure for dust mask:
this example provides another filter layer structure for a high-efficiency dust mask, which is substantially the same as example 1, except that the modified coffee carbon is prepared without the step of soaking in an acetic acid solution; the rest of the structure and method are the same as in example 1.
Example 7: another kind of high-efficient filter layer body structure for dust mask:
this example provides another filter layer structure for a high-efficiency dust mask, which is substantially the same as example 1, except that the modified coffee carbon prepared in this example is not ground with nano titanium dioxide, silver ions and a silane coupling agent and subjected to a vacuum high-temperature reaction, and the rest of the structure and method are the same as example 1.
Example 8: another kind of high-efficient filter layer body structure for dust mask:
this example provides another filter layer structure for a high-efficiency dust mask, which is substantially the same as that of example 1, except that the modified coffee carbon/polycarbonate composite coffee carbon fiber of this example is subjected to the subsequent steps without being treated with a copper salt treatment agent, and the remaining structure and method are the same as those of example 1.
Example 9: another kind of high-efficient filter layer body structure for dust mask:
the present embodiment provides another filter layer structure for a high-efficiency dust mask, which is substantially the same as that in embodiment 1, except that in the copper salt treatment agent treatment in this embodiment, the composite coffee carbon fiber is immersed in a copper salt treatment agent solution with a weight 4 times that of the composite coffee carbon fiber, and the subsequent washing and drying operations are performed after the composite coffee carbon fiber reacts for 10min at 60 ℃; the rest of the structure and method are the same as in example 1.
Example 10: another kind of high-efficient filter layer body structure for dust mask:
this example provides another filter layer structure for a high-efficiency dust mask, which is substantially the same as that of example 1, except that the composite coffee carbon fiber is not introduced with the azole group and the thiol group in the treatment with the copper salt treatment agent of this example, and the remaining structure and method are the same as those of example 1.
Example 11: another kind of high-efficient filter layer body structure for dust mask:
the present embodiment provides another filter layer structure for a high-efficiency dust mask, which is substantially the same as that in embodiment 1, except that the modified coffee carbon/polycarbonate composite coffee carbon fiber of the present embodiment is treated with a copper salt treating agent and then is subjected to subsequent operations without being treated with a functional negative oxygen ion assistant solution; the rest of the structure and method are the same as in example 1.
Experimental example 1: and (3) detecting the filtration efficiency and the bacteriostasis rate:
the dustproof performance and the bacteriostatic rate of each filter layer body in the embodiments 1 to 11 are respectively detected according to national standards GB/T19083-2010 and GB/T15979-2002, and the detection statistical results are shown in Table 1. As can be seen from Table 1, the filter layer structure for the high-efficiency dustproof mask has a high filtering effect, is excellent in dustproof performance and antibacterial performance, and can be applied as a filter layer for the mask.
TABLE 1 results of the measurement of filtration efficiency and bacteriostatic ratio
Figure BDA0002295724410000141
Figure BDA0002295724410000151
Experimental example 2: and (3) electromagnetic effect detection:
the resistivity and far infrared radiance of each of the modified coffee carbon/polycarbonate composite coffee carbon fibers of examples 1 and 5 to 11 were measured by the following methods, and the statistical results are shown in table 2.
A. And (3) conductivity detection: the resistivity (Ω · cm) of the prepared fiber was measured according to korean industrial specification KSK 0180 (resistivity test method of wire, 2013);
B. and (3) detecting far infrared radiance: according to the method for measuring far infrared emissivity and radiant energy by infrared spectrophotometer (KFIA-FI-1005), far infrared emissivity (%) and radiant energy (W/m) at a wavelength of 5 to 20 μm are measured by a Fourier transform infrared spectrometer (FT-IR spectrometer) after irradiating a light source on a test piece at a temperature of 37 ℃ for 20 minutes at a position (infrared lamp, 150W) where the distance between the test piece and the light source is 62cm2·μm)；
C. And (3) detecting the washing fastness: the fiber washing fastness test was carried out based on the washing fastness test method specified in korean industrial specification KS K0430, specifically, 2g of the fiber was put in a 100mL stainless steel container containing 5g/L of a commercially available detergent solution, 10 steel beads were put therein, and then stirred and washed for 30 minutes in a washing fastness tester maintained at 40 ℃; after washing, the sample was rinsed with water and then dried at a temperature of 60 ℃ or lower; these washing steps were repeated a predetermined number of times, and the presence or absence of discoloration and the resistivity were measured.
TABLE 2 results of the measurements of conductivity and far-infrared radiance
Figure BDA0002295724410000152
Figure BDA0002295724410000161
As can be seen from table 2, in the preferred embodiment 1 of the present application, the modified coffee carbon/polycarbonate composite coffee carbon fiber has a low electrical conductivity, and the far infrared radiation rate and far infrared radiation energy are high, and after 40 times of washing with a commercially available detergent, the electrical conductivity is only increased by one time, and the far infrared radiation rate and far infrared radiation energy are only slightly decreased, so that the washing fastness is good; additionally, as can be seen from the comparison of example 8 with example 1, not only the conductivity is reduced and the radiance and radiant energy are increased, but also the washing fastness is more excellent after the copper salt treatment; furthermore, as is clear from the comparison between example 11 and example 1, the composite filter layer (the main functional component is the modified coffee carbon/polycarbonate composite coffee carbon fiber) treated by the functional negative oxygen ion assistant solution has more excellent electromagnetic effect based on the treatment of the copper salt treatment agent, and the effects of emitting far infrared rays, shielding electromagnetic waves, removing static electricity and the like can be further improved, so that the filter layer body for the high-efficiency dustproof mask based on the composite filter layer body and the mask prepared by the filter layer body are more heat-insulating, warm-keeping, electromagnetic wave shielding and antistatic.
Experimental example 3: and (3) detecting the release amount of negative oxygen ions:
first, the amount of negative oxygen ions released from each of the filter layers for high-efficiency dust masks in examples 1 and 8 to 11 of the present application was counted, and 5 samples were collected for each example and statistically analyzed, and the statistical data are shown in fig. 1.
Second, example 9 was analyzed specifically, and according to the results of example 9, sub-example 9a (composite coffee carbon fiber immersed in 4 times by weight of copper salt treating agent solution and reacted for 0.5h), sub-example 9b (composite coffee carbon fiber immersed in 4 times by weight of copper salt treating agent solution and reacted for 1.0h), sub-example 9c (composite coffee carbon fiber immersed in 4 times by weight of copper salt treating agent solution and reacted for 1.5h), sub-example 9d (composite coffee carbon fiber immersed in 4 times by weight of copper salt treating agent solution and reacted for 2.0h), sub-example 9e (composite coffee carbon fiber immersed in 4 times by weight of copper salt treating agent solution and reacted for 2.5h), and sub-example 1 (composite coffee carbon fiber immersed in 4 times by weight of copper salt treating agent solution and reacted for 3.0h) were separated, respectively, from the above-mentioned example 8, example 9, The average negative oxygen ion release amount was statistically analyzed for 5 samples of each of example 9a, example 9b, example 9c, example 9d, example 9e, and example 1, and the statistical data is shown in fig. 2.
As can be seen from fig. 1 and 2, the modification of azole and thiol groups, the treatment with copper salt and the duration of the treatment with copper salt in the present application all have a significant effect on the release amount of negative oxygen ions from the sample, and particularly, as can be seen from fig. 2, in this example 1, the composite coffee carbon fiber is immersed in a 4 times by weight solution of copper salt treatment agent and reacted for 3.0h, so that the optimum treatment, i.e., the release amount of negative oxygen ions is maximized, and therefore, the following conclusion can be drawn: the modified coffee carbon/polycarbonate composite coffee carbon fiber treated by the functional negative oxygen ion assistant solution can improve the electromagnetic effect of the treatment of the copper salt treating agent, and conversely, the negative oxygen ion release degree of the composite coffee carbon fiber can be optimized by the treatment of the copper salt treating agent, and the negative oxygen ion release degree influence mutually and have a synergistic effect, so that the table 3 shows that the filter layer body for the high-efficiency dustproof mask and the mask prepared by the filter layer body have higher negative oxygen ion concentration, meet the requirements of people on daily living environment and are beneficial to human health.
TABLE 3 negative oxygen ion content in different regions
Figure BDA0002295724410000171
Conventional techniques in the above embodiments are known to those skilled in the art, and therefore, will not be described in detail herein.
While the above detailed description has shown, described, and pointed out novel features as applied to various embodiments, it will be understood that various omissions, substitutions, and changes in the form and details of the device or method illustrated may be made without departing from the spirit of the disclosure. In addition, the various features and methods described above may be used independently of one another, or may be combined in various ways. All possible combinations and sub-combinations are intended to fall within the scope of the present disclosure. Many of the embodiments described above include similar components, and thus, these similar components are interchangeable in different embodiments. While the invention has been disclosed in the context of certain embodiments and examples, it will be understood by those skilled in the art that the invention extends beyond the specifically disclosed embodiments to other alternative embodiments and/or uses and obvious modifications and equivalents thereof. Accordingly, the invention is not intended to be limited by the specific disclosure of preferred embodiments herein.

Claims (10)

1. The utility model provides a composite filter layer, composite filter layer is formed by main yarn and the mixed fabric that weaves of vice yarn which characterized in that:
modified coffee carbon/polycarbonate composite coffee carbon fibers are sequentially passed through
Copper salt treating agent treatment, and
the composite coffee carbon fiber obtained by processing the functional negative oxygen ion assistant solution is used as a main yarn;
the allyl hydantoin nanofiber is used as a secondary yarn, and the weight of each unit length of the secondary yarn is 1/5-2/3 of the weight of each unit length of the primary yarn;
the composite filter layer has a weaving structure comprising a warp yarn A composed of the main yarn, a weft yarn A composed of the main yarn, a warp yarn B composed of the auxiliary yarn, and a weft yarn B composed of the auxiliary yarn;
the weaving density coefficient of the fabric is 10-14.
2. The composite filter layer of claim 1, wherein: the copper salt treating agent comprises:
12-30 wt% of a copper salt;
1.5 to 5.0 wt% of a metal salt;
10-25 wt% of a reducing agent;
10-30 wt% of a sulfide;
1.2 to 3.5 wt% of a catalyst;
1.5 to 5.0 wt% of polyvalent ammonium; and
2.0 to 8.0 wt% of an alkaline compound.
3. The composite filter layer of claim 1 or 2, wherein: the modified coffee carbon/polycarbonate composite coffee carbon fiber is treated by a copper salt treating agent, and specifically comprises the following steps:
introducing at least one functional group selected from a thiol group, a thiocarbonyl group, a thiourea group, an azole group, an amino group, a cyano group and an amide group into the surface of the modified coffee carbon/polycarbonate composite coffee carbon fiber;
the modified coffee carbon/polycarbonate composite coffee carbon fiber containing the functional group is treated by a copper salt treating agent, and specifically the functional group is combined with copper sulfide and metal sulfide through coordination bonds.
4. The composite filter layer of claim 3, wherein: the functional group accounts for 1.5-5.0 wt% of the total weight of the modified coffee carbon/polycarbonate composite coffee carbon fiber.
5. The composite filter layer according to any one of claims 1 to 4, wherein: the functional negative oxygen ion assistant solution treatment specifically comprises the following steps:
1) heating the amorphous silicon dioxide to 80 ℃ and keeping for 2-5 h;
2) extracting the baked and dried magnesium-rich fibrous silicate and ion-adsorption type rare earth ore by using an acidic extractant, and baking at a high temperature after extraction, wherein the removal rate of radioactive elements is more than 95%;
3) crushing, mixing uniformly and drying hydrous magnesium silicate, magnesium-rich fibrous silicate and ion adsorption type rare earth ore after radioactive elements are removed, and silicon dioxide after high-temperature treatment to obtain negative oxygen ion functional powder;
4) the preparation method comprises the following steps of uniformly mixing purified water, negative oxygen ion functional powder, a neutral dispersant, a neutral adhesive and a neutral curing agent according to a ratio of 100: 10-15: 4-5: 4-6: 5-6, and fully fusing to obtain a negative oxygen ion functional additive solution;
5) soaking the modified coffee carbon/polycarbonate composite coffee carbon fiber treated by the copper salt treating agent into the solution in the step 4) for more than 30min at the temperature of 40-50 ℃, dewatering and drying, and then weaving.
6. The composite filter layer of claim 5, wherein: the weight ratio of the magnesium-rich fibrous silicate and the ion-adsorption type rare earth ore subjected to removal of radioactive elements and the silicon dioxide subjected to high-temperature treatment in the step 3) is 10: 8-10: 5-20: 2-5.
7. The utility model provides a high-efficient filter layer body for dust mask which characterized in that has and includes by the structure of following each layer by outer arranging in proper order:
an outer layer of non-woven fabric;
an aloe mannan porous membrane layer;
the composite filter layer of any one of claims 1 to 6;
an aloe mannan nanoporous inner membrane layer;
the inner layer of the pure cotton gauze.
8. The filter layer for a high-efficiency dust-proof mask according to claim 7, wherein: the aloe mannan nano porous inner membrane layer is prepared by the following steps:
1) taking aloe mannan fine powder and ultrapure water according to the proportion of 1.25-1.55: 100, homogenizing and swelling at constant temperature;
2) filling the aloe mannan solution after constant temperature homogeneous swelling into a 10mL syringe with the inner diameter of a needle head of 0.6mm, and then putting into high-voltage electric field equipment to prepare a nano membrane material;
3) pretreating the nano-film material at-20 deg.C for 4h, and vacuum freeze-drying at-50 deg.C under 5Pa to obtain the final product.
9. The filter layer for a high-efficiency dust-proof mask according to claim 8, wherein: the conditions for preparing the nano-film material in the high-voltage electric field equipment are as follows: the temperature is 35-45 ℃, the relative humidity is 30%, the spinning distance is 13cm, the spinning voltage is 30kV, the spinning flow rate is 2.4mL/h, and the spinning time is 10 min.
10. A mask comprising the composite filter layer according to any one of claims 1 to 6 and/or the filter layer body for a high-efficiency dust-proof mask according to any one of claims 7 to 9.
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