CN115354445A - Hydrophobic melt-blown fabric with rough surface and preparation method thereof - Google Patents
Hydrophobic melt-blown fabric with rough surface and preparation method thereof Download PDFInfo
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- CN115354445A CN115354445A CN202211018062.6A CN202211018062A CN115354445A CN 115354445 A CN115354445 A CN 115354445A CN 202211018062 A CN202211018062 A CN 202211018062A CN 115354445 A CN115354445 A CN 115354445A
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/56—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/07—Addition of substances to the spinning solution or to the melt for making fire- or flame-proof filaments
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/542—Adhesive fibres
- D04H1/544—Olefin series
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/542—Adhesive fibres
- D04H1/55—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
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/558—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in combination with mechanical or physical treatments other than embossing
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- 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
- D06M11/73—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 carbon or compounds thereof
- D06M11/74—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 carbon or compounds thereof with carbon or graphite; with carbides; with graphitic acids or their salts
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- 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
- D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/20—Polyalkenes, polymers or copolymers of compounds with alkenyl groups bonded to aromatic groups
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- 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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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
- D10B2321/022—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polypropylene
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- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Artificial Filaments (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Filtering Materials (AREA)
Abstract
The invention relates to the technical field of melt-blown fabric, in particular to hydrophobic melt-blown fabric with a rough surface and a preparation method thereof, wherein the hydrophobic melt-blown fabric is prepared from the following raw materials: polypropylene chip, polybutylene terephthalate slice, chlorinated biphenyl, molybdenum disulfide, inorganic fire retardant, graphite alkene granule and hydrophobic coating, put polypropylene chip, polybutylene terephthalate slice, chlorinated biphenyl, inorganic fire retardant and molybdenum disulfide all into the vacuum oven and dry, the pelleter cuts grain, with modified resin section feeding screw extruder in, cool down, press from both sides the meltblown fabric in two-layer screen cloth, the meltblown fabric after the hot rolling takes out from two-layer screen cloth, obtain the hydrophobic meltblown fabric that the surface has unsmooth coarse structure, the hydrophobic meltblown fabric who has the coarse surface who makes has the roughness height, characteristics that hydrophobic effect is good, realized can improving the hydrophobic effect of meltblown fabric, can satisfy the in-service use demand well.
Description
Technical Field
The invention relates to the technical field of melt-blown cloth, in particular to hydrophobic melt-blown cloth with a rough surface and a preparation method thereof.
Background
At present, polypropylene is mainly used as a main raw material of melt-blown fabric, and the diameter of fiber can reach 1-5 microns. The superfine fibers with unique capillary structures increase the number and the surface area of the fibers per unit area, so that the melt-blown fabric has good filtering property, shielding property, heat insulation property and oil absorption property. Can be used in the fields of air and liquid filtering materials, isolating materials, absorbing materials, mask materials, warm-keeping materials, oil absorbing materials, wiping cloth and the like.
However, the existing melt-blown cloth has poor hydrophobic effect and cannot well meet the actual use requirement.
Disclosure of Invention
The invention aims to provide a hydrophobic meltblown fabric with a rough surface and a preparation method thereof, and aims to solve the technical problems that in the prior art, the hydrophobic effect of the meltblown fabric is poor, and the actual use requirements cannot be well met.
In order to achieve the purpose, the hydrophobic melt-blown fabric with the rough surface is prepared from the following raw materials in parts by mass:
45-60 parts of polypropylene slices, 15-20 parts of polybutylene terephthalate slices, 3-5 parts of chlorinated biphenyl, 3-5 parts of molybdenum disulfide, 3-5 parts of inorganic flame retardant, 3-5 parts of graphene particles and 3-5 parts of hydrophobic coating.
The invention also provides a preparation method of the hydrophobic melt-blown fabric with the rough surface, which comprises the following steps:
according to the mass parts, the polypropylene slices, the polybutylene terephthalate slices, the chlorinated biphenyl, the inorganic flame retardant and the molybdenum disulfide are all placed in a vacuum oven for drying;
blending the dried polypropylene slices, the polybutylene terephthalate slices, the chlorinated biphenyl, the inorganic flame retardant and the molybdenum disulfide in a double-screw extruder, condensing a melt trickle in a water tank, and granulating by using a granulator to obtain modified resin slices;
feeding the modified resin slices into a screw extruder, heating to form a melt, simultaneously sucking a large amount of room-temperature air on two sides of a spinneret plate, mixing the room-temperature air with hot air flow containing superfine fibers, cooling the superfine fibers, cooling and solidifying the molten superfine fibers, and forming melt-blown cloth through the self-adhesive action;
before the melt-blown fabric is not completely solidified, spraying graphene particles to the top through graphene spraying equipment;
spraying a hydrophobic coating on the top of the cooled and shaped melt-blown fabric through a hydrophobic layer coating spray head, and forming a hydrophobic coating on the top of the polypropylene melt-blown fabric after the hydrophobic coating is cooled;
and clamping the melt-blown fabric in two layers of screens with the mesh number of 300-700 meshes, feeding the screens into a hot rolling mill for hot rolling, and taking the melt-blown fabric after the hot rolling out of the two layers of screens to obtain the hydrophobic melt-blown fabric with the surface having a concave-convex coarse structure.
Wherein, after the step of blending the dried polypropylene chips, polybutylene terephthalate chips, chlorinated biphenyls, the inorganic flame retardant, and the molybdenum disulfide in a twin screw extruder, condensing a thin stream of melt in a water tank:
and (5) air-drying by an air dryer.
Wherein, in feeding the modified resin slice into screw extruder, heating to become the fuse-element, have a large amount of room temperature air to be inhaled simultaneously in the both sides of spinneret simultaneously, mix with the hot-air current that contains the superfine fiber, make its cooling, the superfine fiber of melting cools off solidification, in the step of forming the melt-blown cloth through self adhesive action:
the melt is fed from a metering pump through a filter into a spinneret and is ejected from a spinneret orifice.
Wherein, the modified resin slice is fed into a screw extruder and heated into a melt, a large amount of room temperature air is simultaneously sucked at two sides of a spinneret plate and mixed with hot air flow containing superfine fiber to cool the superfine fiber, the melted superfine fiber is cooled and solidified, and the melt-blown cloth is formed by the self-adhesive action:
the solidified fibers are deposited on a receiving device under the action of the air flow.
Wherein, before the melt-blown fabric is not completely solidified, in the step of spraying graphene particles to the top through graphene spraying equipment:
and (3) supplying air to the polypropylene melt-blown layer for refrigeration through a cooling mechanism so as to rapidly cool the polypropylene melt-blown layer.
The invention has the following beneficial effects: firstly, putting the polypropylene slices, the polybutylene terephthalate slices, the chlorinated biphenyl, the inorganic flame retardant and the molybdenum disulfide into a vacuum oven for drying according to the mass parts; then blending the dried polypropylene slices, the polybutylene terephthalate slices, the chlorinated biphenyl, the inorganic flame retardant and the molybdenum disulfide in a double-screw extruder, condensing the melt trickle in a water tank, and granulating by using a granulator to obtain modified resin slices; feeding the modified resin slices into a screw extruder, heating to form a melt, simultaneously sucking a large amount of room-temperature air on two sides of a spinneret plate, mixing the room-temperature air with hot air flow containing superfine fibers, cooling the superfine fibers, cooling and solidifying the molten superfine fibers, and forming melt-blown cloth through the self-bonding action; then spraying graphene particles to the top through graphene spraying equipment before the melt-blown fabric is not completely solidified; spraying a hydrophobic coating on the top of the cooled and shaped melt-blown fabric through a hydrophobic layer coating nozzle, and forming a hydrophobic coating on the top of the polypropylene melt-blown fabric after the hydrophobic coating is cooled; and then clamping the melt-blown fabric in two layers of screens with the mesh number of 300-700 meshes, feeding the screens into a hot rolling mill for hot rolling, taking the melt-blown fabric out of the two layers of screens after the hot rolling, and finally obtaining the hydrophobic melt-blown fabric with the rough surface.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of the steps of example 1 of the present invention.
Fig. 2 is a flowchart of the steps of embodiment 2 of the present invention.
Fig. 3 is a flowchart of the steps of embodiment 3 of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The invention provides a hydrophobic melt-blown fabric with a rough surface, which is prepared from the following raw materials in parts by mass:
45-60 parts of polypropylene slices, 15-20 parts of polybutylene terephthalate slices, 3-5 parts of chlorinated biphenyl, 3-5 parts of molybdenum disulfide, 3-5 parts of inorganic flame retardant, 3-5 parts of graphene particles and 3-5 parts of hydrophobic coating.
Example 1, referring to fig. 1, the present invention provides a method for preparing a hydrophobic meltblown having a roughened surface, comprising the steps of:
s1: according to the mass parts, 60 parts of polypropylene slices, 20 parts of polybutylene terephthalate slices, 5 parts of chlorinated biphenyl, 5 parts of inorganic flame retardant and 5 parts of molybdenum disulfide are all placed in a vacuum oven for drying;
s2: blending the dried polypropylene slices, the polybutylene terephthalate slices, the chlorinated biphenyl, the inorganic flame retardant and the molybdenum disulfide in a double-screw extruder, condensing a melt trickle in a water tank, air-drying by an air dryer, and granulating by a granulator to obtain modified resin slices;
s3: feeding the modified resin slices into a screw extruder, heating to form a melt, feeding the melt into a spinneret plate through a filter by a metering pump, spraying the melt from a spinneret orifice, simultaneously sucking a large amount of room-temperature air on two sides of the spinneret plate simultaneously, mixing the room-temperature air with hot air flow containing superfine fibers, cooling the melt, cooling and solidifying the molten superfine fibers, depositing the solidified fibers on a receiving device under the action of air flow, and forming melt-blown cloth through the self-bonding action;
s4: before the melt-blown fabric is not completely solidified, 5 parts of graphene particles are sprayed to the top through graphene spraying equipment, and then air is supplied to the polypropylene melt-blown layer through a cooling mechanism for refrigeration, so that the polypropylene melt-blown layer is rapidly cooled.
S5: 5 parts of hydrophobic coating is sprayed on the top of the cooled and shaped melt-blown fabric through a hydrophobic layer coating sprayer, and a hydrophobic coating is formed on the top of the polypropylene melt-blown fabric after the hydrophobic coating is cooled.
S6: and clamping the melt-blown fabric in two layers of screens with 700 meshes, feeding the screens into a hot rolling mill for hot rolling, and taking the melt-blown fabric after hot rolling out of the two layers of screens to obtain the hydrophobic melt-blown fabric with a concave-convex rough structure on the surface.
In the present embodiment, by first putting 60 parts by mass of the polypropylene chips, 20 parts by mass of the polybutylene terephthalate chips, 5 parts by mass of the chlorinated biphenyl, 5 parts by mass of the inorganic flame retardant, and 5 parts by mass of the molybdenum disulfide in a vacuum oven for drying; then blending the dried polypropylene slices, the polybutylene terephthalate slices, the chlorinated biphenyl, the inorganic flame retardant and the molybdenum disulfide in a double-screw extruder, condensing the melt trickle in a water tank, air-drying by an air dryer, and granulating by a granulator to obtain modified resin slices; feeding the modified resin slices into a screw extruder, heating to form a melt, feeding the melt into a spinneret plate through a filter by a metering pump, spraying the melt from a spinneret orifice, simultaneously sucking a large amount of room-temperature air on two sides of the spinneret plate simultaneously, mixing the room-temperature air with hot air flow containing superfine fibers, cooling the melt, cooling and solidifying the molten superfine fibers, depositing the solidified fibers on a receiving device under the action of air flow, and forming melt-blown cloth through the self-adhesive action; then before the melt-blown fabric is not completely solidified, spraying 5 parts of graphene particles to the top through graphene spraying equipment, and then supplying air to the polypropylene melt-blown layer through a cooling mechanism for refrigeration so as to rapidly cool the polypropylene melt-blown layer; 5 parts of hydrophobic coating is sprayed on the top of the cooled and shaped melt-blown fabric through a hydrophobic layer coating sprayer, and a hydrophobic coating is formed on the top of the polypropylene melt-blown fabric after the hydrophobic coating is cooled; and then clamping the melt-blown fabric in two layers of screens with 700 meshes, feeding the screens into a hot rolling mill for hot rolling, taking the melt-blown fabric out of the two layers of screens after the hot rolling to obtain the hydrophobic melt-blown fabric with a concave-convex rough structure on the surface, and finally obtaining the hydrophobic melt-blown fabric with a rough surface.
Example 2, referring to fig. 2, the present invention provides a method for preparing a hydrophobic meltblown having a rough surface, comprising the steps of:
s1: according to the mass parts, 52.5 parts of polypropylene slices, 17.5 parts of polybutylene terephthalate slices, 4 parts of chlorinated biphenyl, 4 parts of inorganic flame retardant and 4 parts of molybdenum disulfide are all placed in a vacuum oven for drying;
s2: blending the dried polypropylene slices, the polybutylene terephthalate slices, the chlorinated biphenyl, the inorganic flame retardant and the molybdenum disulfide in a double-screw extruder, condensing a melt trickle in a water tank, air-drying by an air dryer, and granulating by a granulator to obtain modified resin slices;
s3: feeding the modified resin slices into a screw extruder, heating to form a melt, feeding the melt into a spinneret plate through a filter by a metering pump, spraying the melt from a spinneret orifice, simultaneously sucking a large amount of room-temperature air on two sides of the spinneret plate simultaneously, mixing the room-temperature air with hot air flow containing superfine fibers, cooling the melt, cooling and solidifying the molten superfine fibers, depositing the solidified fibers on a receiving device under the action of air flow, and forming melt-blown cloth through the self-bonding action;
s4: before the melt-blown fabric is not completely solidified, 4 parts of graphene particles are sprayed to the top through graphene spraying equipment, and then air is supplied to the polypropylene melt-blown layer through a cooling mechanism for refrigeration, so that the polypropylene melt-blown layer is rapidly cooled.
And S5, spraying 4 parts of hydrophobic coating on the top of the cooled and shaped melt-blown fabric through a hydrophobic layer coating nozzle, and forming a hydrophobic coating on the top of the polypropylene melt-blown fabric after the hydrophobic coating is cooled.
S6: and clamping the melt-blown fabric in two layers of screens with 500 meshes, feeding the screens into a hot rolling mill for hot rolling, and taking the melt-blown fabric after hot rolling out of the two layers of screens to obtain the hydrophobic melt-blown fabric with a concave-convex coarse structure on the surface.
In the present embodiment, by first putting 52.5 parts by mass of the polypropylene chip, 17.5 parts by mass of the polybutylene terephthalate chip, 4 parts by mass of the chlorinated biphenyl, 4 parts by mass of the inorganic flame retardant, and 4 parts by mass of the molybdenum disulfide in a vacuum oven for drying; then blending the dried polypropylene slices, the polybutylene terephthalate slices, the chlorinated biphenyl, the inorganic flame retardant and the molybdenum disulfide in a double-screw extruder, condensing the melt trickle in a water tank, air-drying by an air dryer, and granulating by a granulator to obtain modified resin slices; feeding the modified resin slices into a screw extruder, heating to form a melt, feeding the melt into a spinneret plate through a filter by a metering pump, spraying the melt from a spinneret orifice, simultaneously sucking a large amount of room-temperature air on two sides of the spinneret plate simultaneously, mixing the room-temperature air with hot air flow containing superfine fibers, cooling the melt, cooling and solidifying the molten superfine fibers, depositing the solidified fibers on a receiving device under the action of air flow, and forming melt-blown cloth through the self-adhesive action; then before the melt-blown fabric is not completely solidified, spraying 4 parts of graphene particles to the top through graphene spraying equipment, and then supplying air to the polypropylene melt-blown layer through a cooling mechanism for refrigeration so as to rapidly cool the polypropylene melt-blown layer; spraying 4 parts of hydrophobic coating to the top of the cooled and shaped melt-blown fabric through a hydrophobic layer coating sprayer, and forming a hydrophobic coating on the top of the polypropylene melt-blown fabric after the hydrophobic coating is cooled; and then clamping the melt-blown fabric in two layers of screens with 500 meshes, feeding the screens into a hot rolling mill for hot rolling, taking the melt-blown fabric out of the two layers of screens after hot rolling to obtain the hydrophobic melt-blown fabric with a concave-convex rough structure on the surface, and finally obtaining the hydrophobic melt-blown fabric with a rough surface.
Example 3, referring to fig. 3, the present invention provides a method for preparing a hydrophobic meltblown having a roughened surface, comprising the steps of:
s1: according to the mass parts, putting 45 parts of polypropylene slices, 15 parts of polybutylene terephthalate slices, 3 parts of chlorinated biphenyl, 3 parts of inorganic flame retardant and 3 parts of molybdenum disulfide into a vacuum oven for drying;
s2: blending the dried polypropylene slices, the polybutylene terephthalate slices, the chlorinated biphenyl, the inorganic flame retardant and the molybdenum disulfide in a double-screw extruder, condensing a melt trickle in a water tank, air-drying by an air dryer, and granulating by a granulator to obtain modified resin slices;
s3: feeding the modified resin slices into a screw extruder, heating to form a melt, feeding the melt into a spinneret plate through a filter by a metering pump, spraying the melt from a spinneret orifice, simultaneously sucking a large amount of room-temperature air on two sides of the spinneret plate simultaneously, mixing the room-temperature air with hot air flow containing superfine fibers, cooling the melt, cooling and solidifying the molten superfine fibers, depositing the solidified fibers on a receiving device under the action of air flow, and forming melt-blown cloth through the self-bonding action;
s4: before the melt-blown fabric is not completely solidified, 3 parts of graphene particles are sprayed to the top through graphene spraying equipment, and then air is supplied to the polypropylene melt-blown layer through a cooling mechanism for refrigeration, so that the polypropylene melt-blown layer is rapidly cooled.
And S5, spraying 3 parts of hydrophobic coating on the top of the cooled and shaped melt-blown fabric through a hydrophobic layer coating nozzle, and forming a hydrophobic coating on the top of the polypropylene melt-blown fabric after the hydrophobic coating is cooled.
S6: and clamping the melt-blown fabric in two layers of screens with the mesh number of 300, feeding the screens into a hot rolling mill for hot rolling, and taking the melt-blown fabric after the hot rolling out of the two layers of screens to obtain the hydrophobic melt-blown fabric with the surface having a concave-convex coarse structure.
In the present embodiment, the polypropylene chips 45 parts, the polybutylene terephthalate chips 15 parts, the chlorinated biphenyls 3 parts, the inorganic flame retardants 3 parts, and the molybdenum disulfide 3 parts are all dried by first putting them in a vacuum oven by mass parts; then blending the dried polypropylene slices, the polybutylene terephthalate slices, the chlorinated biphenyl, the inorganic flame retardant and the molybdenum disulfide in a double-screw extruder, condensing the melt trickle in a water tank, air-drying by an air dryer, and granulating by a granulator to obtain modified resin slices; feeding the modified resin slices into a screw extruder, heating to form a melt, feeding the melt into a spinneret plate through a filter by a metering pump, spraying the melt from a spinneret orifice, simultaneously sucking a large amount of room-temperature air on two sides of the spinneret plate simultaneously, mixing the room-temperature air with hot air flow containing superfine fibers, cooling the melt, cooling and solidifying the molten superfine fibers, depositing the solidified fibers on a receiving device under the action of air flow, and forming melt-blown cloth through the self-adhesive action; then before the melt-blown fabric is not completely solidified, spraying 3 parts of graphene particles to the top through graphene spraying equipment, and then supplying air to the polypropylene melt-blown layer through a cooling mechanism for refrigeration so as to rapidly cool the polypropylene melt-blown layer; spraying 3 parts of hydrophobic coating to the top of the cooled and shaped melt-blown fabric through a hydrophobic layer coating sprayer, and forming a hydrophobic coating on the top of the polypropylene melt-blown fabric after the hydrophobic coating is cooled; and then clamping the melt-blown fabric in two layers of screens with 300 meshes, feeding the screens into a hot rolling mill for hot rolling, taking the melt-blown fabric out of the two layers of screens after hot rolling to obtain the hydrophobic melt-blown fabric with a concave-convex rough structure on the surface, and finally obtaining the hydrophobic melt-blown fabric with a rough surface.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. The hydrophobic melt-blown fabric with the rough surface is characterized by comprising the following raw materials in parts by mass: 45-60 parts of polypropylene slices, 15-20 parts of polybutylene terephthalate slices, 3-5 parts of chlorinated biphenyl, 3-5 parts of molybdenum disulfide, 3-5 parts of inorganic flame retardant, 3-5 parts of graphene particles and 3-5 parts of hydrophobic coating.
2. A method for preparing the hydrophobic meltblown having a rough surface according to claim 1, comprising the steps of:
according to the mass parts, putting the polypropylene slices, the polybutylene terephthalate slices, the chlorinated biphenyl, the inorganic flame retardant and the molybdenum disulfide into a vacuum oven for drying;
blending the dried polypropylene slices, the polybutylene terephthalate slices, the chlorinated biphenyl, the inorganic flame retardant and the molybdenum disulfide in a double-screw extruder, condensing a melt trickle in a water tank, and granulating by using a granulator to obtain modified resin slices;
feeding the modified resin slices into a screw extruder, heating to form a melt, simultaneously sucking a large amount of room-temperature air on two sides of a spinneret plate, mixing the room-temperature air with hot air flow containing superfine fibers, cooling the superfine fibers, cooling and solidifying the molten superfine fibers, and forming melt-blown cloth through the self-adhesive action;
before the melt-blown fabric is not completely solidified, spraying graphene particles to the top through graphene spraying equipment;
spraying a hydrophobic coating on the top of the cooled and shaped melt-blown fabric through a hydrophobic layer coating spray head, and forming a hydrophobic coating on the top of the polypropylene melt-blown fabric after the hydrophobic coating is cooled;
and clamping the melt-blown fabric in two layers of screens with the mesh number of 300-700 meshes, feeding the screens into a hot rolling mill for hot rolling, and taking the melt-blown fabric after the hot rolling out of the two layers of screens to obtain the hydrophobic melt-blown fabric with the surface having a concave-convex coarse structure.
3. The method of claim 2, wherein after the step of blending the dried polypropylene chips, polybutylene terephthalate chips, chlorinated biphenyls, inorganic flame retardant, and molybdenum disulfide in a twin screw extruder, condensing the melt stream in a water bath:
and (5) air-drying by an air dryer.
4. The method of claim 2, wherein in the step of feeding the modified resin chip into a screw extruder, heating the chip into a melt, simultaneously sucking a large amount of room temperature air at both sides of a spinneret, mixing the sucked room temperature air with a hot air stream containing the ultrafine fibers, cooling the melt, cooling the melted ultrafine fibers to solidify, and forming the meltblown fabric by self-adhesion:
the melt is fed from a metering pump through a filter into a spinneret and is ejected from a spinneret orifice.
5. The method of claim 2, wherein in the step of feeding the modified resin chip into a screw extruder, heating the chip into a melt, simultaneously sucking a large amount of room temperature air at both sides of a spinneret, mixing the sucked room temperature air with a hot air stream containing the ultrafine fibers, cooling the melt, cooling the melted ultrafine fibers to solidify, and forming the meltblown fabric by self-adhesion:
the solidified fibers are deposited on a receiving device under the action of the air flow.
6. The method of claim 2, wherein in the step of spraying the graphene particles to the top by the graphene spraying apparatus before the meltblown fabric is not completely solidified:
and (3) supplying air to the polypropylene melt-blown layer for refrigeration through a cooling mechanism so as to rapidly cool the polypropylene melt-blown layer.
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| US5512358A (en) * | 1993-09-22 | 1996-04-30 | Kimberly-Clark Corporation | Multi-component polymeric strands including a butene polymer and nonwoven fabric and articles made therewith |
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| CN106835592A (en) * | 2017-01-17 | 2017-06-13 | 东华大学 | A kind of hydrophobic fusion spray cloth with rough surface and preparation method thereof |
| CN111334930A (en) * | 2020-04-16 | 2020-06-26 | 江苏时慕希防护用品有限公司 | Graphene melt-blown fabric, manufacturing process and protective product thereof |
| CN111607902A (en) * | 2020-04-30 | 2020-09-01 | 广东顺事德智能科技有限公司 | Hydrophobic melt-blown fabric with rough surface and preparation method thereof |
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|---|---|---|---|---|
| US5512358A (en) * | 1993-09-22 | 1996-04-30 | Kimberly-Clark Corporation | Multi-component polymeric strands including a butene polymer and nonwoven fabric and articles made therewith |
| CN101688342A (en) * | 2007-06-22 | 2010-03-31 | 3M创新有限公司 | Meltblown fiber web with staple fibre |
| CN106835592A (en) * | 2017-01-17 | 2017-06-13 | 东华大学 | A kind of hydrophobic fusion spray cloth with rough surface and preparation method thereof |
| CN111334930A (en) * | 2020-04-16 | 2020-06-26 | 江苏时慕希防护用品有限公司 | Graphene melt-blown fabric, manufacturing process and protective product thereof |
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