CN107151861A - A kind of preparation method of nano-silver nonwoven cloth - Google Patents
A kind of preparation method of nano-silver nonwoven cloth Download PDFInfo
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- CN107151861A CN107151861A CN201710350591.9A CN201710350591A CN107151861A CN 107151861 A CN107151861 A CN 107151861A CN 201710350591 A CN201710350591 A CN 201710350591A CN 107151861 A CN107151861 A CN 107151861A
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D13/00—Complete machines for producing artificial threads
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
- D01F1/103—Agents inhibiting growth of microorganisms
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- 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
- 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
- D01F6/48—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 polymers of halogenated hydrocarbons
-
- 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
- D01F6/90—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 polyamides
-
- 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
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
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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
- D10B2321/021—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polyethylene
-
- 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
- D10B2321/04—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of halogenated hydrocarbons
- D10B2321/042—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of halogenated hydrocarbons polymers of fluorinated hydrocarbons, e.g. polytetrafluoroethene [PTFE]
-
- 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
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
-
- 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
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
Abstract
The invention provides a kind of preparation method of nano-silver nonwoven cloth, specific method is：Step 1: pretreatment of raw material：Non-woven fabrics is cut into slices and with dispersant is configured to finely dispersed solution after raw material stoving, the Nano silver solution of dispersant is prepared under ultraviolet light irradiation, dry Nano Silver solid；Step 2: melt pelletization：Non-woven fabrics section raw material, Nano Silver solid are first subjected to ball milling on ball mill, granulated afterwards in melting granulator；Step 3: melting extrusion：Gained nanometer silver material composite balls will be granulated through screw extruder melting extrusion, screw extruder outer heating zone is heat stepwise；Step 4: melt-blown：The Nano Silver raw material melt of extrusion enters measuring pump, and material is evenly distributed into meltblown beam, and melt carries out drawing-off, shaping；Step 5: drying：Dried in drying chamber.The preparation method for the volume nano-silver nonwoven cloth that the present invention is provided, obtains the finely dispersed non-woven fabrics raw material of Nano Silver, and method is convenient, and Nano Silver is scattered to be more uniformly distributed.
Description
Technical field
The present invention relates to a kind of preparation method of non-woven fabrics, especially a kind of Nano Silver improves the preparation method of non-woven fabrics.
Background technology
Nano Silver is that particle diameter is accomplished into nano level argent simple substance, with unique optics, electricity, catalytic property.Receive
Meter Yin has the high-specific surface area of nano particle, while having strong bactericidal properties, finds according to the study, and Nano silver grain can be at several minutes
650 various bacterias of interior kill：After nano-Ag particles and the cell membrane or cell membrane film combination of pathogen, can be directly entered thalline,
The sulfydryl with oxygen metabolism enzyme is combined rapidly, inactivates enzyme, blocks respiratory metabolism it is choked to death.Unique sterilization mechanism, makes
Pathogenic bacteria can be killed rapidly in low concentration by obtaining nano-Ag particles.According to statistics, Nano Silver is to Escherichia coli, gonococcus, trachoma clothing
The tens of kinds of pathogenic microorganisms such as substance have strong suppression and killing action, and will not develop immunity to drugs.
Non-woven fabrics is made up of fiber orient or random, is environment-friendly materials of new generation, with it is ventilative, moistureproof, flexible,
Lightweight, it is not combustion-supporting the features such as, available for multiple fields such as health care, industry, packaging, auto industrys.Nano Silver is used in nonwoven
The non-woven fabrics converted products good available for processability, such as infant's tableware, feeding bottle, baby paper diaper in cloth, adult urine is not
It is wet, and haze mouth mask etc..
The content of the invention
The present invention relates to a kind of preparation method of nano-silver nonwoven cloth, nanometer is prepared by ultraviolet light irradiation silver nitrate solution
Silver, and well mixed nanometer silver material compound is obtained via blending, ball milling, granulation, Screw Extrusion, finally via melt-blown head
The finely dispersed non-woven fabrics raw material of Nano Silver is obtained, preparation method is convenient, Nano Silver is scattered to be more uniformly distributed.
To achieve the above object, the specific method that uses of the present invention for：A kind of preparation method of nano-silver nonwoven cloth, it is special
Levy and be：Preparation process is：
Step 1: pretreatment of raw material：Non-woven fabrics section raw material is dried into 10 ~ 15h at 80 ~ 100 DEG C；By solid nitric acid it is silver-colored with it is scattered
Agent mixes, is configured to finely dispersed solution by a certain percentage, and the Nano Silver that dispersant is prepared under ultraviolet light irradiation is molten
Liquid, the Nano silver solution obtains Nano Silver solid after drying；
Step 2: melt pelletization：80 ~ 95 parts of non-woven fabrics is cut into slices into raw material, 5 ~ 20 parts of Nano Silver solids first in ball in mass ratio
Ball milling is carried out on grinding machine, is granulated afterwards in melting granulator, granulation gained nanometer silver material compound pellet footpath is 5 ~ 25mm；
Step 3: melting extrusion：Gained nanometer silver material composite balls will be granulated through screw extruder melting extrusion, screw extruder
Outer heating zone is heat stepwise, sets 4 independent heating modules, and each area's temperature control of screw extruder is received at 245 ~ 280 DEG C
When rice silver material is combined ball warp screw extruder melting extrusion, melt temperature is controlled at 220 ~ 260 DEG C；
Step 4: melt-blown：The Nano Silver raw material melt of screw extruder extrusion enters measuring pump, and material is evenly distributed into melt-blown
Die head, melt carries out drawing-off under the drive for a large amount of hot-airs that air heater is produced, and is cooled and shaped on the reception device
For nano-silver nonwoven cloth；
Step 5: drying：By the non-woven fabrics of above-mentioned cooling and shaping in drying chamber dry 12 ~ 24h, obtain dry Nano Silver without
Spin cloth.
Further, four heating zones of the screw extruder, first area's temperature is 245 ~ 260 DEG C, second area's temperature
For 255 ~ 260 DEG C, the 3rd area's temperature is 265 ~ 280 DEG C, and the 4th area's temperature is 220 ~ 260 DEG C.
Further, described non-woven fabrics feed stock chip is one kind in polyester, polyamide, polyethylene, polytetrafluoroethylene (PTFE).
Further, a kind of dispersant of the step is trisodium citrate, polyethylene glycol, polyacrylic acid, N- vinyl
One or more in pyrrolidones.
Further, the mass ratio of the solid nitric acid silver and dispersant is 1:1~1:3.
Further, the measuring pump is 1 to the sendout of melt:4.
Further, the drying of described Nano silver solution uses frozen drying, or is extracted using organic solvent
Dried after filtering.
Further, the extraction with organic solvent be in ether, positive propyl ether, tetrahydrofuran, glycol dimethyl ether one
Plant or a variety of.
The present invention is dried to obtain Nano Silver solid by preparing Nano silver solution by ultraviolet light irradiation silver nitrate solution
Particle, Nano Silver solid particle obtains nanometer silver material via blending, ball milling, melt pelletization with non-woven fabrics section raw material and is combined
Ball, Nano Silver solid is able to mixed once with non-woven fabrics raw material, and mixture is divided equally via granulation；Nano Silver and non-woven fabrics raw material
Extruded via the heating of screw extruder, Nano Silver solid is mixed again with non-woven fabrics；Screw extruder is heated stage by stage,
Ensure the outlet temperature of molten condition and screw extruder of the nanometer silver material compound in screw extruder；The nanometer of melting
Silver material compound reaches meltblown beam via the mean allocation of measuring pump, then via drawing-off, cooling, drying, finally gives and receive
The silver-colored finely dispersed non-woven fabrics raw material of rice.
Beneficial effects of the present invention are as follows：
1. the present invention prepares the Nano silver solution of dispersant by ultraviolet light irradiation silver nitrate mixed solution, and after drying
The Nano Silver solid powder of dispersant is obtained, the presence of dispersant can protect the scattered of dry Nano Silver solid powder
Property, it is to avoid the reunion of solid nano silver；
2. the addition of solvent is not present in the Nano Silver powder of solid, in the technique for subsequently making an addition to non-woven fabrics section raw material,
The drying property of non-woven fabrics raw material is maintained, is conducive to the progress of subsequent technique；
3. Nano Silver solid powder, via being blended twice, makes Nano Silver solid powder former with non-woven fabrics with non-woven fabrics raw mixture
What material was mixed is more uniformly distributed：Nano Silver solid particle obtains nanometer via ball milling, melt pelletization first with non-woven fabrics section raw material
Silver material composite balls, Nano Silver solid is able to mixed once with non-woven fabrics raw material, and once mixture is divided equally via granulation；Nano Silver
Extruded with non-woven fabrics raw material via the heating of screw extruder, Nano Silver solid is mixed again with non-woven fabrics；
4. screw extruder is heated stage by stage, it is ensured that molten condition and screw rod of the nanometer silver material compound in screw extruder
The outlet temperature of extruder；Melting nanometer silver material compound being evenly distributed to via measuring pump extruded through screw extruder
Up to meltblown beam.
Embodiment
A kind of preparation method of nano-silver nonwoven cloth, it is characterised in that：Preparation process is：
Step 1: pretreatment of raw material：Non-woven fabrics section raw material is dried into 10 ~ 15h at 80 ~ 100 DEG C；By solid nitric acid it is silver-colored with it is scattered
Agent mixes, is configured to finely dispersed solution by a certain percentage, and the Nano Silver that dispersant is prepared under ultraviolet light irradiation is molten
Liquid, the Nano silver solution obtains Nano Silver solid after drying；
Step 2: melt pelletization：80 ~ 95 parts of non-woven fabrics is cut into slices into raw material, 5 ~ 20 parts of Nano Silver solids first in ball in mass ratio
Ball milling is carried out on grinding machine, is granulated afterwards in melting granulator, granulation gained Nano Silver composite balls particle diameter is 5 ~ 25mm；
Step 3: melting extrusion：Granulation gained Nano Silver is combined ball warp screw extruder melting extrusion, screw extruder is additional
Hot-zone is heat stepwise, sets 4 independent heating modules, each area's temperature control of screw extruder is in 245 ~ 280 DEG C, Nano Silver
During compound ball warp screw extruder melting extrusion, melt temperature is controlled at 220 ~ 260 DEG C；
Step 4: melt-blown：The Nano Silver compounding flux of screw extruder extrusion enters measuring pump, and material is evenly distributed into melt-blown
Die head, melt carries out drawing-off under the drive for a large amount of hot-airs that air heater is produced, and is cooled and shaped on the reception device
For nano-silver nonwoven cloth；
Step 5: drying：By the non-woven fabrics of above-mentioned cooling and shaping in drying chamber dry 12 ~ 24h, obtain dry Nano Silver without
Spin cloth.
Further, four heating zones of the screw extruder, first area's temperature is 245 ~ 260 DEG C, second area's temperature
For 255 ~ 260 DEG C, the 3rd area's temperature is 265 ~ 280 DEG C, and the 4th area's temperature is 220 ~ 260 DEG C.
Further, described non-woven fabrics feed stock chip is one kind in polyester, polyamide, polyethylene, polytetrafluoroethylene (PTFE).
Further, a kind of dispersant of the step is trisodium citrate, polyethylene glycol, polyacrylic acid, N- vinyl
One or more in pyrrolidones.
Further, the mass ratio of the solid nitric acid silver and dispersant is 1:1~1:3.
Further, the measuring pump is 1 to the sendout of melt:4.
Further, the drying of described Nano silver solution uses frozen drying, or is extracted using organic solvent
Dried after filtering.
Further, the extraction with organic solvent be in ether, positive propyl ether, tetrahydrofuran, glycol dimethyl ether one
Plant or a variety of.
In order to better illustrate the present invention, it is explained with reference to specific embodiment：
Embodiment 1
A kind of preparation method of nano-silver nonwoven cloth, it is characterised in that prepare Nano Silver solid powder first, preparation process is：
Step 1: pretreatment of raw material：Polyethylene section is dried into 10h at 80 DEG C；By solid nitric acid silver and N- ethenyl pyrrolidones
Ketone presses 1:1 ratio mixes, is configured to finely dispersed solution, and ultraviolet light irradiation 10min prepares NVP point
Scattered Nano silver solution, the Nano silver solution obtains Nano Silver solid after drying.
Step 2: melt pelletization：It is in mass ratio that 80 parts of polyethylene section, 20 parts of Nano Silver solids are first on ball mill
Ball milling is carried out, is granulated afterwards in melting granulator, granulation gained Nano Silver polyethylene composite balls particle diameter is 5mm.
Step 3: melting extrusion：Granulation gained Nano Silver polyethylene is combined ball warp screw extruder melting extrusion, screw rod
Extruder outer heating zone is heat stepwise, sets 4 independent heating modules, and first area's temperature is 245 DEG C, and second area's temperature is
255 DEG C, the 3rd area's temperature is 265 DEG C, and the 4th area's temperature is 220 DEG C, and Nano Silver polyethylene is combined the melting of ball warp screw extruder
Melt temperature during extrusion is 220 DEG C.
Step 4: melt-blown：The Nano Silver polyethylene melt of screw extruder extrusion enters measuring pump, and material is evenly distributed
To meltblown beam, melt carries out drawing-off under the drive for a large amount of hot-airs that air heater is produced, and cold on the reception device
But it is shaped to nano-silver nonwoven cloth.
Step 5: drying：The non-woven fabrics of above-mentioned cooling and shaping is dried into 12h in drying chamber, dry Nano Silver is obtained
Non-woven fabrics.
Embodiment 2
A kind of preparation method of nano-silver nonwoven cloth, it is characterised in that：Preparation process is：
Step 1: pretreatment of raw material：Polyester slice is dried into 15h at 100 DEG C；Solid nitric acid silver and polyacrylic acid are pressed 1:3
Ratio mixes, is configured to finely dispersed solution, and ultraviolet light irradiation 20min prepares the scattered Nano silver solution of polyacrylic acid, should
Nano silver solution is via ether：Positive propyl ether=1:1 is extracted as organic phase, is then filtered, is dried, obtains Nano Silver solid.
Step 2: melt pelletization：It is in mass ratio that 95 parts of polyester slice, 5 parts of Nano Silver solids are first enterprising in ball mill
Row ball milling, is granulated in melting granulator afterwards, and granulation gained Nano Silver polyester composite balls particle diameter is 25mm.
Step 3: melting extrusion：Granulation gained Nano Silver polyester is combined ball warp screw extruder melting extrusion, screw rod is squeezed
Go out machine outer heating zone for heat stepwise, 4 independent heating modules are set, first area's temperature is 260 DEG C, and second area's temperature is
260 DEG C, the 3rd area's temperature is 280 DEG C, and the 4th area's temperature is 260 DEG C, and Nano Silver polyester is combined the melting of ball warp screw extruder and squeezed
Melt temperature when going out is 260 DEG C.
Step 4: melt-blown：The Nano Silver polyester fondant of screw extruder extrusion enters measuring pump, and material is evenly distributed to
Meltblown beam, melt carries out drawing-off under the drive for a large amount of hot-airs that air heater is produced, and cools down on the reception device
It is shaped to nano-silver nonwoven cloth.
Step 5: drying：The non-woven fabrics of above-mentioned cooling and shaping is dried into 24h in drying chamber, dry Nano Silver is obtained
Non-woven fabrics.
Embodiment 3
A kind of preparation method of nano-silver nonwoven cloth, it is characterised in that prepare Nano Silver solid powder first, preparation process is：
Step 1: pretreatment of raw material：Polyamide section is dried into 13h at 90 DEG C；Solid nitric acid silver and trisodium citrate are pressed 1:2
Ratio mixing, be configured to finely dispersed solution, ultraviolet light irradiation 20min prepares the scattered Nano Silver of trisodium citrate molten
Liquid, Nano Silver solid is obtained after Nano silver solution freeze-drying.
Step 2: melt pelletization：It is in mass ratio that 90 parts of polyamide section, 10 parts of Nano Silver solids are first on ball mill
Ball milling is carried out, is granulated afterwards in melting granulator, granulation gained Nano Silver polyamide composite balls particle diameter is 20mm.
Step 3: melting extrusion：Granulation gained Nano Silver polyamide is combined ball warp screw extruder melting extrusion, screw rod
Extruder outer heating zone is heat stepwise, sets 4 independent heating modules, and first area's temperature is 250 DEG C, and second area's temperature is
255 DEG C, the 3rd area's temperature is 275 DEG C, and the 4th area's temperature is 255 DEG C, and Nano Silver polyamide is combined the melting of ball warp screw extruder
Melt temperature during extrusion is 255 DEG C.
Step 4: melt-blown：The Nano Silver polyamide melt of screw extruder extrusion enters measuring pump, and material is evenly distributed
To meltblown beam, melt carries out drawing-off under the drive for a large amount of hot-airs that air heater is produced, and cold on the reception device
But it is shaped to nano-silver nonwoven cloth.
Step 5: drying：The non-woven fabrics of above-mentioned cooling and shaping is dried into 20h in drying chamber, dry Nano Silver is obtained
Non-woven fabrics.
The preparation method of the nano-silver nonwoven cloth, Nano Silver is prepared by ultraviolet light irradiation silver nitrate solution, and via altogether
Mixed, ball milling, granulation, Screw Extrusion obtain well mixed nanometer silver material compound, finally obtain Nano Silver via melt-blown head
Finely dispersed non-woven fabrics raw material, preparation method is convenient, and Nano Silver is scattered to be more uniformly distributed, available for the processing of antibacterial nonwoven cloth,
Such as the young wet tissue of baby, baby paper diaper, diaper of being grown up, and haze mouth mask, antibacterial air filter filter core etc..
Claims (8)
1. a kind of preparation method of nano-silver nonwoven cloth, it is characterised in that：Preparation process is：
Step 1: pretreatment of raw material：Non-woven fabrics section raw material is dried into 10 ~ 15h at 80 ~ 100 DEG C；By solid nitric acid it is silver-colored with it is scattered
Agent mixes, is configured to finely dispersed solution by a certain percentage, and the Nano Silver that dispersant is prepared under ultraviolet light irradiation is molten
Liquid, the Nano silver solution obtains Nano Silver solid after drying；
Step 2: melt pelletization：80 ~ 95 parts of non-woven fabrics is cut into slices into raw material, 5 ~ 20 parts of Nano Silver solids first in ball in mass ratio
Ball milling is carried out on grinding machine, is granulated afterwards in melting granulator, granulation gained Nano Silver composite balls particle diameter is 5 ~ 25mm；
Step 3: melting extrusion：Granulation gained Nano Silver is combined ball warp screw extruder melting extrusion, screw extruder is additional
Hot-zone is heat stepwise, sets 4 independent heating modules, each area's temperature control of screw extruder is in 245 ~ 280 DEG C, Nano Silver
During compound ball warp screw extruder melting extrusion, melt temperature is controlled at 220 ~ 260 DEG C；
Step 4: melt-blown：The Nano Silver compounding flux of screw extruder extrusion enters measuring pump, and material is evenly distributed into melt-blown
Die head, melt carries out drawing-off under the drive for a large amount of hot-airs that air heater is produced, and is cooled and shaped on the reception device
For nano-silver nonwoven cloth；
Step 5: drying：By the non-woven fabrics of above-mentioned cooling and shaping in drying chamber dry 12 ~ 24h, obtain dry Nano Silver without
Spin cloth.
2. a kind of preparation method of nano-silver nonwoven cloth according to claim 1, it is characterised in that：The screw extruder
Four heating zones, first area's temperature be 245 ~ 260 DEG C, second area's temperature be 255 ~ 260 DEG C, the 3rd area's temperature be 265 ~ 280
DEG C, the 4th area's temperature is 220 ~ 260 DEG C.
3. a kind of preparation method of nano-silver nonwoven cloth according to claim 1, it is characterised in that：Described non-woven fabrics is former
Material section is one kind in polyester, polyamide, polyethylene, polytetrafluoroethylene (PTFE).
4. a kind of preparation method of nano-silver nonwoven cloth according to claim 1, it is characterised in that：The step is a kind of
Dispersant is the one or more in trisodium citrate, polyethylene glycol, polyacrylic acid, NVP.
5. a kind of preparation method of nano-silver nonwoven cloth according to claim 1 or 3, it is characterised in that：The solid nitre
The mass ratio of sour silver and dispersant is 1:1~1:3.
6. a kind of preparation method of nano-silver nonwoven cloth according to claim 1, it is characterised in that：The measuring pump is to molten
The sendout of body is 1:4.
7. a kind of preparation method of nano-silver nonwoven cloth according to claim 1, it is characterised in that：Described Nano Silver is molten
The drying of liquid uses frozen drying, or extracts dry after filtering using organic solvent.
8. a kind of preparation method of nano-silver nonwoven cloth according to claim 7, it is characterised in that：It is described to extract with organic
Solvent is the one or more in ether, positive propyl ether, tetrahydrofuran, glycol dimethyl ether.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112609327A (en) * | 2020-12-04 | 2021-04-06 | 江阴市华思诚无纺布有限公司 | Antibacterial non-woven fabric for transplantable roof greening and production method thereof |
| WO2021189762A1 (en) * | 2020-03-27 | 2021-09-30 | 中昊晨光化工研究院有限公司 | Polytetrafluoroethylene composite filter material |
| CN114190632A (en) * | 2021-02-01 | 2022-03-18 | 高守垒 | Antibacterial breathable mask and preparation method thereof |
-
2017
- 2017-05-18 CN CN201710350591.9A patent/CN107151861A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021189762A1 (en) * | 2020-03-27 | 2021-09-30 | 中昊晨光化工研究院有限公司 | Polytetrafluoroethylene composite filter material |
| CN112609327A (en) * | 2020-12-04 | 2021-04-06 | 江阴市华思诚无纺布有限公司 | Antibacterial non-woven fabric for transplantable roof greening and production method thereof |
| CN114190632A (en) * | 2021-02-01 | 2022-03-18 | 高守垒 | Antibacterial breathable mask and preparation method thereof |
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Application publication date: 20170912 |