CN111993726A - Terahertz antibacterial heating material - Google Patents

Terahertz antibacterial heating material Download PDF

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Publication number
CN111993726A
CN111993726A CN202010949746.2A CN202010949746A CN111993726A CN 111993726 A CN111993726 A CN 111993726A CN 202010949746 A CN202010949746 A CN 202010949746A CN 111993726 A CN111993726 A CN 111993726A
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China
Prior art keywords
terahertz
antibacterial
mineral
hot
layer material
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CN202010949746.2A
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Chinese (zh)
Inventor
邱童
张小平
韩燕仓
成龙
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Gaoyijiang New Material Technology Suzhou Co ltd
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Gaoyijiang New Material Technology Suzhou Co ltd
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Priority to CN202010949746.2A priority Critical patent/CN111993726A/en
Publication of CN111993726A publication Critical patent/CN111993726A/en
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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
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
    • 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
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1207—Heat-activated adhesive
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/16—Drying; Softening; Cleaning
    • B32B38/164—Drying
    • 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
    • B32B5/22—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • D01F1/103—Agents inhibiting growth of microorganisms
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
    • D—TEXTILES; PAPER
    • 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
    • D06M11/80—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 boron or compounds thereof, e.g. borides
    • 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
    • D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1207—Heat-activated adhesive
    • B32B2037/1215—Hot-melt adhesive
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/20—Inorganic coating
    • 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
    • B32B2262/0253—Polyolefin 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
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • B32B2307/7145—Rot proof, resistant to bacteria, mildew, mould, fungi
    • 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
    • B32B2307/724—Permeability to gases, adsorption
    • 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
    • B32B2307/726—Permeability to liquids, absorption
    • 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
    • D06M2101/02—Natural fibres, other than mineral fibres
    • D06M2101/04—Vegetal fibres
    • D06M2101/06—Vegetal fibres cellulosic

Abstract

The invention discloses a terahertz antibacterial heating material which is composed of a surface layer material, a core layer material and a bottom layer material, wherein the surface layer material comprises terahertz antibacterial hot air cotton and terahertz antibacterial non-woven fabric, and the core layer material comprises a water-absorbent polymer material. The terahertz antibacterial heating material is suitable for the field of female protection pads or anti-galactorrhea pads, and has the effects of resisting bacteria, preventing allergy, causing no harm to human bodies and being beneficial to female health.

Description

Terahertz antibacterial heating material
Technical Field
The invention relates to the technical field of hygienic products, in particular to a terahertz antibacterial heating material.
Background
Terahertz (THz) waves refer to electromagnetic waves with the frequency within the range of 0.1-10 THz (the wavelength is 30-3000 mu m), coincide with millimeter waves in a long wave band, coincide with infrared light in a short wave band, are transition regions from a macroscopic classical theory to a microscopic quantum theory, are transition regions from electronics to photonics, and are called terahertz gaps (THz gaps) of electromagnetic spectrum.
The terahertz wave has the functions of improving the magnetic field of a human body, enhancing the activity of cells, promoting metabolism and the like, has excellent antibacterial performance when being applied to the field of a protective pad or a breast pad, and provides a sterile and nontoxic safe environment. The antibacterial property of the existing antibacterial protection pad or breast pad on the market can not be guaranteed, and the antibacterial efficiency is low. Some protective pads are sprayed with essence, additives in the essence are in direct contact with human bodies, allergy can be caused, and the human health is greatly harmed.
Therefore, the present invention is directed to developing a terahertz antibacterial heating material to solve the problems occurring in the above materials.
Disclosure of Invention
In order to solve the above problems, a first aspect of the present invention provides a terahertz antibacterial heating material, where the antibacterial heating material is composed of a surface material, a core material and a bottom material, the surface material includes terahertz antibacterial hot-air cotton and terahertz antibacterial non-woven fabric, and the core material includes a water-absorbent polymer material.
As a preferable technical scheme, the terahertz mineral nano dispersion liquid is sprayed on the surface of the terahertz antibacterial hot-air cotton, and the spraying amount of the terahertz mineral nano dispersion liquid is 5-20 wt%.
As a preferable technical scheme, the particle size of the mineral in the terahertz mineral nano dispersion liquid is 100 nm-300 nm.
As a preferred technical scheme, the terahertz antibacterial non-woven fabric comprises terahertz functional PP master batches and a PP matrix; the weight ratio of the terahertz functional PP master batch to the PP parent is 5-20%: 80-95%.
As a preferable technical scheme, the melt flow rate of the PP matrix is 8-50 g/10 min.
As an optimal technical scheme, the terahertz functional PP master batch is prepared from a terahertz mineral material and PP, wherein the weight ratio of the terahertz mineral material to the PP is (1-2): 8-9.
As a preferable technical scheme, the terahertz mineral material is one or a mixture of two or more of granite, amphibole, feldspar, tourmaline, clay and mica.
As a preferable technical scheme, the water-absorbing high polymer material is polyacrylate with an acid value of 8-11.2 mg KOH/g.
The second aspect of the invention also provides a preparation method of the terahertz antibacterial heating material, which comprises the following steps:
s1: blending the PP parent and the terahertz functional PP master batch, heating and melting to obtain a PP composite material, and preparing the terahertz antibacterial non-woven fabric from the PP composite material through processes of spinning, laying, hot-pressing, curling and the like; spraying a terahertz mineral nano dispersion liquid on the hot-air cotton, and carrying out hot-pressing drying treatment at 80-110 ℃ to obtain terahertz antibacterial hot-air cotton;
s2: carrying out heat treatment on the terahertz antibacterial non-woven fabric and the terahertz antibacterial hot-air cotton to obtain a surface layer material;
s3: and bonding the surface layer material, the core layer material and the bottom layer material by using hot melt adhesive to obtain the terahertz antibacterial heating material.
The third aspect of the invention also provides an application of the terahertz antibacterial heating material in the field of female protection pads or anti-galactorrhea pads.
Has the advantages that:
1. the terahertz antibacterial heating material has strong antibacterial performance;
2. due to the existence of mineral particles, when the specific surface area of the terahertz antibacterial heating material is larger, a plurality of active centers can appear, and the adsorption capacity is enhanced;
3. the terahertz antibacterial heating material disclosed by the invention is good in air permeability and not easy to generate sultry;
4. the terahertz antibacterial heating material disclosed by the invention is good in fiber stability, high in fiber strength and good in user experience;
5. the terahertz antibacterial heating material disclosed by the invention has good water absorption and water retention performance, and terahertz waves generated by utilizing terahertz minerals have very strong sterilization and anti-allergy functions.
Detailed Description
The disclosure may be understood more readily by reference to the following detailed description of preferred embodiments of the invention and the examples included therein. Unless defined otherwise, all 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. In case of conflict, the present specification, including definitions, will control.
In order to solve the above problems, a first aspect of the present invention provides a terahertz antibacterial heating material, where the antibacterial heating material is composed of a surface material, a core material and a bottom material, the surface material includes terahertz antibacterial hot-air cotton and terahertz antibacterial non-woven fabric, and the core material includes a water-absorbent polymer material.
In some preferred embodiments, the terahertz mineral nano dispersion is sprayed on the surface of the terahertz antibacterial hot-air cotton, and the spraying amount of the terahertz mineral nano dispersion is 5-20 wt%.
The terahertz mineral nano dispersion liquid is sprayed on the surface of the hot air cotton, so that the mineral substances are uniformly attached to the surface of the hot air cotton, and the internal structure of the nano mineral substances is completely preserved because the mineral substances exist on the surface of the hot air cotton in a physical attachment form, so that the nano mineral substances have stronger antibacterial property; the spraying amount of the terahertz mineral nano dispersion liquid is selected to be within the range of 5-20 wt%, because the particle size of the mineral is 100-300 nm in the system, and when the spraying amount is selected to be within the range of 5-20 wt%, the coverage rate of the terahertz mineral nano dispersion liquid attached to hot air cotton reaches the maximum value, so that the antibacterial property is improved, and meanwhile, the air permeability can be enhanced.
The hot air cotton can be obtained commercially, such as from Intelligent fiber products of Dongguan company, Inc., the material is ES, and the gram weight is 15-35 gsm; the terahertz mineral nano dispersion liquid is prepared from a terahertz mineral material and water, wherein the solid content of the terahertz mineral material in the water is 15-30%, and the preparation method is a technical means known by technical personnel in the field.
In some preferred embodiments, the particle size of the mineral in the terahertz mineral nano dispersion liquid is 100nm to 300 nm. The mineral particle size is chosen in the range of 100nm to 300nm because in this range the surface volume percentage of the mineral is large and a large specific surface area results in a mismatch of the bond states and thus a number of active centers present, which leads to an increased adsorption capacity of the mineral. In the system, as the terahertz mineral materials are granite, amphibole, feldspar, tourmaline, clay, mica and the like, when the nano minerals contain larger specific surface area, the terahertz mineral materials have extremely strong capturing capability on oxygen atoms, oxygen free radicals and other alkane molecules, so that the terahertz mineral materials have stronger antiseptic and antibacterial functions.
In some preferred embodiments, the terahertz antibacterial non-woven fabric comprises terahertz functional PP master batches and a PP matrix; the weight ratio of the terahertz functional PP master batch to the PP parent is 5-20%: 80-95%. The mixture of the terahertz functional PP master batches and the PP matrix is selected as a raw material of the non-woven fabric, so that the antibacterial performance of the non-woven fabric is enhanced, generally speaking, the strength of the non-woven fabric is poorer than that of woven fabric, and in the system, the terahertz functional PP master batches are added by 5-20 wt%, and the mineral particle size is 100-300 nm, so that the terahertz functional PP master batches can be uniformly dispersed in the composite material, and the strength of the non-woven fabric is improved.
PP matrix
In some preferred embodiments, the PP matrix has a melt flow rate of 8 to 50g/10 min. The melt flow rate of the PP matrix is 8-50 g/10min, so that the stability of the PP fiber performance is improved, the raw material of the non-woven fabric in the system is a mixture of the terahertz functional PP master batch and the PP matrix, and the dispersibility of the PP matrix high-molecular polymer is improved due to the addition of the terahertz functional PP master batch, so that when the melt flow rate of the PP matrix is 8-50 g/10min, the processing performance of the polymer cannot be influenced, the stability of the PP fiber can be improved, the phenomena of depilation and pilling are avoided, and the use experience is improved.
The melt flow rate is the amount of the molten material (in g) extruded through the die orifice at 190 ℃ over a period of 10min under 2.16kg (303 kPa).
Terahertz functional PP master batch
In some preferred embodiments, the terahertz functional PP master batch is prepared from a terahertz mineral material and PP, wherein the weight ratio of the terahertz mineral material to the PP is (1-2): 8-9. Selecting a terahertz mineral material and PP in a weight ratio of 1-2: 8-9, because the emissivity of the terahertz wave of 0.3-2.5 THz in the ratio range can reach 90-99%, the antibacterial and antiallergic performances of the material are greatly improved, and the terahertz wave antibacterial and antiallergic material and the terahertz antibacterial hot air cotton act together in the system to achieve the effect of effectively sterilizing for a long time.
In some preferred embodiments, the preparation raw material of the terahertz functional PP master batch further comprises an auxiliary agent, wherein the addition amount of the auxiliary agent accounts for 0.1-5 wt% of the total weight of the terahertz mineral material; the auxiliary agent at least comprises one of a dispersant, a compatilizer and a surfactant; preferably, the addition amount of the auxiliary agent accounts for 3.5 wt% of the total weight of the terahertz mineral material; the auxiliary agent comprises a dispersing agent and a compatilizer.
In some preferred embodiments, the weight ratio of the dispersant to the compatibilizer is 1: (0.1 to 0.5); preferably, the weight ratio of the dispersing agent to the compatilizer is 1: 0.3.
in some preferred embodiments, the dispersant is selected from one or more of glycidyl methacrylate, polyethylene wax, polypropylene wax, ethylene glycol isooctyl ether, N' -ethylene bis stearamide, maleic anhydride grafted polypropylene wax; preferably, the dispersant is a maleic anhydride grafted polypropylene wax, available from PP6252, cheynen chemical ltd, Chongqing.
In some preferred embodiments, the type of the compatibilizer is not particularly limited, and any compatibilizer that can be generally used in preparing the master batch can be used in the present invention; preferably, the compatibilizing agent is a silane coupling agent.
In some preferred embodiments, the kind of the silane coupling agent is not particularly limited; preferably, the silane coupling agent is aminopropylmethyldiethoxysilane.
In some preferred embodiments, the preparation method of the terahertz functional PP master batch is selected from at least one of a nanofabrication technology, an organic-inorganic nano hybrid dispersion technology, and a master batch manufacturing technology; preferably, the preparation method of the terahertz functional PP master batch is a PP master batch manufacturing process.
In some preferred embodiments, the detailed preparation method of the PP master batch manufacturing process is not particularly limited, the PP master batch manufacturing process is prepared by a technical method well known in the art, and the master batch manufacturing process of the terahertz functional PP master batch in the present invention is as follows: the terahertz material is obtained by mixing the terahertz mineral material, PP and an auxiliary agent through organic-inorganic hybrid melting and extrusion granulation.
Terahertz mineral material
In some preferred embodiments, the terahertz mineral material is one or a mixture of two or more of granite, amphibole, feldspar, tourmaline, clay and mica;
more preferably, the terahertz mineral material is feldspar and amphibole;
more preferably, the weight ratio of the feldspar to the amphibole is 1: (0-2);
more preferably, the weight ratio of the feldspar to the amphibole is 1: 0.5;
preferably, the particle size of the terahertz mineral material is 100-300 nm.
More preferably, the particle size of the terahertz mineral material is 200 nm.
The terahertz mineral material is ground into nano powder by wet-method grading grinding, spray drying or direct dry-method grading grinding, and then is subjected to surface modification and coating treatment to improve dispersibility and prevent secondary agglomeration; the specific embodiment of the surface modification and coating treatment is not particularly limited, and is a technique commonly used by those skilled in the art.
Terahertz mineral nano dispersion liquid
The terahertz mineral nano dispersion liquid is prepared from water and a terahertz mineral material, and comprises 70-85 wt% of water and 15-30 wt% of the terahertz mineral material.
And mixing the water and the terahertz mineral material in the weight ratio, and shaking up to obtain the terahertz mineral nano dispersion liquid.
In some preferred embodiments, the water-absorbent polymer material is polyacrylate with an acid value of 8-11.2 mg KOH/g. By selecting polyacrylate with an acid value of 8-11.2 mg KOH/g as the water-absorbent polymer material, the water absorption and water retention of the water-absorbent polymer material are improved, and the water-absorbent polymer material has better air permeability and antibacterial performance in the system.
The acid number represents the number of milligrams of potassium hydroxide (KOH) required to neutralize 1 gram of chemical, and the polyacrylate in the present invention is available from korsa polymer (china) ltd under the model number a 2695.
The second aspect of the invention also provides a preparation method of the terahertz antibacterial heating material, which comprises the following steps:
s1: blending the PP parent and the terahertz functional PP master batch, heating and melting to obtain a PP composite material, and preparing the terahertz antibacterial non-woven fabric from the PP composite material through processes of spinning, laying, hot-pressing, curling and the like; spraying a terahertz mineral nano dispersion liquid on the hot-air cotton, and carrying out hot-pressing drying treatment at 80-110 ℃ to obtain terahertz antibacterial hot-air cotton;
s2: carrying out heat treatment on the terahertz antibacterial non-woven fabric and the terahertz antibacterial hot-air cotton to obtain a surface layer material;
s3: and bonding the surface layer material, the core layer material and the bottom layer material by using hot melt adhesive to obtain the terahertz antibacterial heating material.
The core layer material is prepared from polyacrylate with an acid value of 8-11.2 mg KOH/g, and the preparation method is not particularly limited and is a technical means commonly used by technicians in the field.
The bottom layer material is a composite non-woven fabric purchased from Nantong Kanda composite Co.
The hot melt adhesive is selected from Zhejiang Gute adhesive materials Co., Ltd, and is a special hot melt adhesive for protection pads and sanitary towels.
The third aspect of the invention also provides an application of the terahertz antibacterial heating material in the field of female protection pads or anti-galactorrhea pads.
Examples
The technical solution of the present invention is described in detail by the following examples, but the scope of the present invention is not limited to the examples. Unless otherwise specified, all the raw materials in the present invention are commercially available.
Example 1
Embodiment 1 provides a terahertz antibacterial heating material, and antibacterial heating material comprises surface layer material, core layer material, bottom material, surface layer material include terahertz antibacterial hot-blast cotton and terahertz antibacterial non-woven fabrics, core layer material includes water absorption macromolecular material.
The terahertz mineral nano dispersion liquid is sprayed on the surface of the terahertz antibacterial hot air cotton, and the spraying amount of the terahertz mineral nano dispersion liquid is 5 wt%.
The terahertz mineral nano dispersion liquid is prepared by mixing 85 wt% of water and 15 wt% of terahertz mineral materials.
The particle size of the mineral in the terahertz mineral nano dispersion liquid is 100 nm.
The terahertz antibacterial non-woven fabric comprises terahertz functional PP master batches and a PP matrix; the weight ratio of the terahertz functional PP master batch to the PP parent is 5: 95 percent.
The melt flow rate of the PP matrix is 8g/10min, and the PP matrix is selected from Keye, and the model is Iran JPCEP3X 37F.
The terahertz functional PP master batch is prepared from a terahertz mineral material and PP, wherein the weight ratio of the terahertz mineral material to the PP is 1: 9.
the terahertz mineral material is feldspar and amphibole, and the weight ratio of the feldspar to the amphibole is 1: 0.5.
the preparation raw materials of the terahertz functional PP master batch also comprise an auxiliary agent, wherein the addition amount of the auxiliary agent accounts for 3.5 wt% of the total weight of the terahertz mineral material; the weight ratio of the dispersing agent to the compatilizer is 1: 0.3; the dispersant is maleic anhydride grafted polypropylene wax which can be purchased from PP6252 of Chongqing Keyin chemical Co., Ltd, and the compatilizer is aminopropyl methyl diethoxy silane which can be purchased from KBM-902 of Chongqing Keyin chemical Co., Ltd.
The manufacturing process of the master batch of the terahertz functional PP master batch comprises the following steps: the terahertz material is obtained by mixing the terahertz mineral material, PP and an auxiliary agent through organic-inorganic hybrid melting and extrusion granulation.
The water-absorbing high polymer material is polyacrylate with an acid value of 8-11.2 mg KOH/g, and is selected from Corsia polymer (China) Co., Ltd., and the model is A2695.
The embodiment also provides a preparation method of the terahertz antibacterial heating material, which is characterized by comprising the following steps:
s1: blending the PP parent and the terahertz functional PP master batch, heating and melting to obtain a PP composite material, and preparing the terahertz antibacterial non-woven fabric from the PP composite material through processes of spinning, laying, hot-pressing, curling and the like; spraying a terahertz mineral nano dispersion liquid on the hot-air cotton, and carrying out hot-pressing drying treatment at 80 ℃ to obtain terahertz antibacterial hot-air cotton;
s2: carrying out heat treatment on the terahertz antibacterial non-woven fabric and the terahertz antibacterial hot-air cotton to obtain a surface layer material;
s3: and bonding the surface layer material, the core layer material and the bottom layer material by using hot melt adhesive to obtain the terahertz antibacterial heating material.
Example 2
Embodiment 2 provides a terahertz antibacterial heating material, and antibacterial heating material comprises surface layer material, core layer material, bottom material, surface layer material include terahertz antibacterial hot-blast cotton and terahertz antibacterial non-woven fabrics, core layer material includes hydroscopic polymer material.
The terahertz mineral nano dispersion liquid is sprayed on the surface of the terahertz antibacterial hot air cotton, and the spraying amount of the terahertz mineral nano dispersion liquid is 20 wt%.
The terahertz mineral nano dispersion liquid is prepared by mixing 70 wt% of water and 30 wt% of terahertz mineral material.
The particle size of the mineral in the terahertz mineral nano dispersion liquid is 300 nm.
The terahertz antibacterial non-woven fabric comprises terahertz functional PP master batches and a PP matrix; the weight ratio of the terahertz functional PP master batch to the PP parent is 20: 80 percent.
The melt flow rate of the PP matrix is 30g/10min, and the PP matrix is selected from Keye chemical industry and is Belgian J-60/20/FR.
The terahertz functional PP master batch is prepared from a terahertz mineral material and PP, wherein the weight ratio of the terahertz mineral material to the PP is 2: 8.
the terahertz mineral material is feldspar and amphibole, and the weight ratio of the feldspar to the amphibole is 1: 0.5.
the preparation raw materials of the terahertz functional PP master batch also comprise an auxiliary agent, wherein the addition amount of the auxiliary agent accounts for 3.5 wt% of the total weight of the terahertz mineral material; the weight ratio of the dispersing agent to the compatilizer is 1: 0.3; the dispersant is maleic anhydride grafted polypropylene wax which can be purchased from PP6252 of Chongqing Keyin chemical Co., Ltd, and the compatilizer is aminopropyl methyl diethoxy silane which can be purchased from KBM-902 of Chongqing Keyin chemical Co., Ltd.
The manufacturing process of the master batch of the terahertz functional PP master batch comprises the following steps: the terahertz material is obtained by mixing the terahertz mineral material, PP and an auxiliary agent through organic-inorganic hybrid melting and extrusion granulation.
The water-absorbing high polymer material is polyacrylate with an acid value of 8-11.2 mg KOH/g, and is selected from Corsia polymer (China) Co., Ltd., and the model is A2695.
The embodiment also provides a preparation method of the terahertz antibacterial heating material, which is characterized by comprising the following steps:
s1: blending the PP parent and the terahertz functional PP master batch, heating and melting to obtain a PP composite material, and preparing the terahertz antibacterial non-woven fabric from the PP composite material through processes of spinning, laying, hot-pressing, curling and the like; spraying a terahertz mineral nano dispersion liquid on the hot-air cotton, and carrying out hot-pressing drying treatment at 110 ℃ to obtain terahertz antibacterial hot-air cotton;
s2: carrying out heat treatment on the terahertz antibacterial non-woven fabric and the terahertz antibacterial hot-air cotton to obtain a surface layer material;
s3: and bonding the surface layer material, the core layer material and the bottom layer material by using hot melt adhesive to obtain the terahertz antibacterial heating material.
Example 3
Embodiment 3 provides a terahertz antibacterial heating material, and antibacterial heating material comprises surface layer material, core layer material, bottom material, surface layer material include terahertz antibacterial hot-blast cotton and terahertz antibacterial non-woven fabrics, core layer material includes water absorption macromolecular material.
The terahertz mineral nano dispersion liquid is sprayed on the surface of the terahertz antibacterial hot air cotton, and the spraying amount of the terahertz mineral nano dispersion liquid is 15 wt%.
The terahertz mineral nano dispersion liquid is prepared by mixing 78 wt% of water and 22 wt% of terahertz mineral material.
The particle size of the mineral in the terahertz mineral nano dispersion liquid is 200 nm.
The terahertz antibacterial non-woven fabric comprises terahertz functional PP master batches and a PP matrix; the weight ratio of the terahertz functional PP master batch to the PP parent is 15: 85 percent.
The melt flow rate of the PP matrix is 22g/10min, and the PP matrix is selected from Kay chemical industry and has the model number of CS4-8000 Hungarian.
The terahertz functional PP master batch is prepared from a terahertz mineral material and PP, wherein the weight ratio of the terahertz mineral material to the PP is 1.5: 8.5.
the terahertz mineral material is feldspar and amphibole, and the weight ratio of the feldspar to the amphibole is 1: 0.5.
the preparation raw materials of the terahertz functional PP master batch also comprise an auxiliary agent, wherein the addition amount of the auxiliary agent accounts for 3.5 wt% of the total weight of the terahertz mineral material; the weight ratio of the dispersing agent to the compatilizer is 1: 0.3; the dispersant is maleic anhydride grafted polypropylene wax which can be purchased from PP6252 of Chongqing Keyin chemical Co., Ltd, and the compatilizer is aminopropyl methyl diethoxy silane which can be purchased from KBM-902 of Chongqing Keyin chemical Co., Ltd.
The manufacturing process of the master batch of the terahertz functional PP master batch comprises the following steps: the terahertz material is obtained by mixing the terahertz mineral material, PP and an auxiliary agent through organic-inorganic hybrid melting and extrusion granulation.
The water-absorbing high polymer material is polyacrylate with an acid value of 8-11.2 mg KOH/g, and is selected from Corsia polymer (China) Co., Ltd., and the model is A2695.
The embodiment also provides a preparation method of the terahertz antibacterial heating material, which is characterized by comprising the following steps:
s1: blending the PP parent and the terahertz functional PP master batch, heating and melting to obtain a PP composite material, and preparing the terahertz antibacterial non-woven fabric from the PP composite material through processes of spinning, laying, hot-pressing, curling and the like; spraying a terahertz mineral nano dispersion liquid on the hot-air cotton, and carrying out hot-pressing drying treatment at 95 ℃ to obtain terahertz antibacterial hot-air cotton;
s2: carrying out heat treatment on the terahertz antibacterial non-woven fabric and the terahertz antibacterial hot-air cotton to obtain a surface layer material;
s3: and bonding the surface layer material, the core layer material and the bottom layer material by using hot melt adhesive to obtain the terahertz antibacterial heating material.
Comparative example 1
The specific implementation mode of the terahertz antibacterial heating material is the same as that of example 3, except that no terahertz mineral nano dispersion liquid is sprayed on the surface of the hot-air cotton.
Comparative example 2
The specific implementation manner of the terahertz antibacterial heating material is the same as that of example 3, except that the particle size of the mineral in the terahertz mineral nano dispersion liquid is 500 nm.
Comparative example 3
Comparative example 3 of the present invention provides a terahertz antibacterial heating material, which is the same as example 3 in the specific embodiment, except that the terahertz antibacterial non-woven fabric only has a PP matrix.
Comparative example 4
The invention provides a comparative example 4 of a terahertz antibacterial heating material, which is the same as the embodiment 3 in the specific implementation mode, and is characterized in that the melt flow rate of the PP matrix is 3g/10min, and the PP matrix is selected from Keye and is of Iran JPPCHP 527J.
Comparative example 5
Comparative example 5 of the present invention provides a terahertz antibacterial heating material, which is the same as example 3 in the specific implementation manner, except that the weight ratio of the terahertz mineral material to PP is 0.5: 9.5.
comparative example 6
Comparative example 6 of the present invention provides a terahertz antibacterial heating material, which is the same as example 3 in the specific embodiment, except that the water-absorbent polymer material polyacrylate has a pH of 7 to 8, and is selected from kostew polymer (china) ltd, model No. a 2542.
Performance testing
1. Antibacterial property test
The antibacterial rate of the terahertz antibacterial heating material prepared in the embodiment and the comparative example to staphylococcus aureus is measured according to GB/T20944.3-2008, and specific numerical values are shown in Table 1.
2. Terahertz emissivity test
Under the same condition, the terahertz spectrometer is used for detecting the terahertz antibacterial heating material cotton prepared in the embodiment and the comparative example, and specific numerical values are shown in table 1.
3. Far infrared irradiation temperature rise test
Under the same condition, the terahertz antibacterial heating material prepared in the embodiment and the comparative example is tested according to GB/T30127 and 2013 detection and evaluation of far infrared performance of textiles, and specific values are shown in Table 1.
TABLE 1
Figure BDA0002676526600000141

Claims (10)

1. The utility model provides a terahertz is antibiotic exothermic material, its characterized in that, antibiotic exothermic material comprises surface course material, sandwich layer material, bottom material, surface course material include terahertz antibiotic hot-blast cotton and terahertz antibiotic non-woven fabrics, sandwich layer material includes hydroscopicity macromolecular material.
2. The terahertz antibacterial heating material as claimed in claim 1, wherein the terahertz mineral nano dispersion is sprayed on the surface of the terahertz antibacterial hot-air cotton, and the spraying amount of the terahertz mineral nano dispersion is 5-20 wt%.
3. The terahertz antibacterial heating material as claimed in claim 2, wherein the particle size of the mineral in the terahertz mineral nano dispersion liquid is 100 nm-300 nm.
4. The terahertz antibacterial heating material as claimed in claim 1, wherein the terahertz antibacterial non-woven fabric comprises terahertz functional PP master batches and PP matrixes; the weight ratio of the terahertz functional PP master batch to the PP parent is 5-20%: 80-95%.
5. The terahertz antibacterial heating material as claimed in claim 4, wherein the melt flow rate of the PP matrix is 8-50 g/10 min.
6. The terahertz antibacterial heating material of claim 4, wherein the terahertz functional PP master batch is prepared from a terahertz mineral material and PP, and the weight ratio of the terahertz mineral material to the PP is (1-2): 8-9.
7. The terahertz antibacterial heating material as claimed in claim 6, wherein the terahertz mineral material is one or a mixture of two or more of granite, amphibole, feldspar, tourmaline, clay and mica.
8. The terahertz antibacterial heating material as claimed in claim 1, wherein the water-absorbing polymer material is polyacrylate with an acid value of 8-11.2 mg KOH/g.
9. The preparation method of the terahertz antibacterial heating material as claimed in any one of claims 1 to 8, comprising the following steps:
s1: blending the PP parent and the terahertz functional PP master batch, heating and melting to obtain a PP composite material, and preparing the terahertz antibacterial non-woven fabric from the PP composite material through processes of spinning, laying, hot-pressing, curling and the like; spraying a terahertz mineral nano dispersion liquid on the hot-air cotton, and carrying out hot-pressing drying treatment at 80-110 ℃ to obtain terahertz antibacterial hot-air cotton;
s2: carrying out heat treatment on the terahertz antibacterial non-woven fabric and the terahertz antibacterial hot-air cotton to obtain a surface layer material;
s3: and bonding the surface layer material, the core layer material and the bottom layer material by using hot melt adhesive to obtain the terahertz antibacterial heating material.
10. The application of the terahertz antibacterial exothermic material according to claim 9, wherein the terahertz antibacterial exothermic material is used in a female protective pad or an anti-galactorrhea pad.
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CN113662325A (en) * 2021-04-02 2021-11-19 宾度投资股份有限公司 Terahertz function Chinese herbal medicine insole

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