CN104553174B - A kind of composite nonwoven material and preparation method thereof - Google Patents
A kind of composite nonwoven material and preparation method thereof Download PDFInfo
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- CN104553174B CN104553174B CN201510004903.1A CN201510004903A CN104553174B CN 104553174 B CN104553174 B CN 104553174B CN 201510004903 A CN201510004903 A CN 201510004903A CN 104553174 B CN104553174 B CN 104553174B
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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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
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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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
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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
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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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
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
- D04H1/728—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
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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
- B32B2255/00—Coating on the layer surface
- B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
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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
- B32B2255/00—Coating on the layer surface
- B32B2255/20—Inorganic coating
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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
- 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
- B32B2262/0261—Polyamide fibres
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Ceramic Engineering (AREA)
- Textile Engineering (AREA)
- Nonwoven Fabrics (AREA)
Abstract
This application discloses a kind of composite nonwoven material and preparation method thereof.The composite nonwoven material of the application includes at least two-layer PP viscose non-woven material layer and PA6 or the PA66 electrostatic spinning nano fiber material layer being folded between two-layer PP viscose non-woven material layer, and composite nonwoven material surface uniform pickup has UV absorbent and antibacterial；Clamping in the two-layer PP viscose non-woven material layer of PA6 or PA66 electrostatic spinning nano fiber material layer, at least one PP viscose non-woven material layer surface-coated has nano-titania photocatalyst coating.The composite nonwoven material strength of the application is high, fibre fineness is low；Possess high porosity, high-specific surface area, barrier and good air permeability, there is ageing resistance and antibiotic property；The non-woven material of blending is compared together, there is not additive mixing inequality or separates out the production and mass defect caused；And preparation method is simple, general non-woven material is used to produce equipment.
Description
Technical field
The application relates to non-woven material field, particularly relates to a kind of complex nonwoven for building field
Material and preparation method thereof.
Background technology
Novel high-quality non-woven building structural materials, need to have good breathability, weather-proof dispel mould,
The performances such as durable in use and energy efficient.The performance that this differentiation can be traced back to the eighties in last century and be occurred completely cuts off
House wrap (housewrap) the class material of air-flow.At present in addition to isolation air-flow, should also have weather-proof dispel mould
Etc. performance；And to the latter, be not only yearning, it has also become a kind of requirement.For usage amount, according to INDA
Data, North America is mainly the roofing of America & Canada, structural material year consumption supatex fabric about 1.8 hundred million
Dollar, mainly include for house wrap/underlayment (underlay) and the base material of modified pitch roofing articles for use.With
Non-woven material in house wrap/underlayment accounts for the 1/3 of total amount, for roof substrate (roofing substrate)
Non-woven material also account for the 1/3 of total amount.
The U.S., Canadian several families were combined company and are proposed and spin melt material and the composite of PE ventilated membrane in recent years,
This melt material that spins has weather-proof mould function of dispelling.At present, existing aging resistance is the most weather-proof, and antibacterial i.e. dispels
Mould product mainly uses co-blended spinning and finishing method to produce.The shortcoming of co-blended spinning method is aging resistance polymer
Mix uneven with polypropylene (PP), easily block spinneret, it is impossible to ensure continuous print steady production；Separately
Outward, in spinning process, age resister easily separates out, and pollutes spinning plate face, drafting system and hot-rolling mill, causes and spin
The problems such as silk is abnormal, cloth cover bonding is bad.And the deficiency that finishing method produces is long flow path, production cost height.
Summary of the invention
The purpose of the application is to provide a kind of new composite nonwoven material, and preparation method thereof.
To achieve these goals, the application have employed techniques below scheme:
On the one hand the application discloses a kind of composite nonwoven material, including at least two-layer PP spunbonded nonwoven material
The bed of material, and PA6 or the PA66 electrostatic spinning nano fiber being folded between two-layer PP viscose non-woven material layer
Material layer, and the surface uniform pickup of composite nonwoven material has UV absorbent and antibacterial；Further,
Clamp in the two-layer PP viscose non-woven material layer of PA6 or PA66 electrostatic spinning nano fiber material layer, at least
The surface-coated of one PP viscose non-woven material layer has nano-titania photocatalyst coating.
It should be noted that the application's it is critical that be compounded in electrostatic spinning with viscose non-woven material
Form composite nonwoven material together, both solve the shortcoming that electrospun material strength is low, the most again will be multiple
The fibre fineness of condensation material is substantially reduced；Owing to electrospun material has high porosity, high-specific surface area
Feature, makes composite nonwoven material have good barrier and breathability；Non-knit at least one PP is spunbond
The surface-coated of the producing material bed of material has nano-titania photocatalyst coating, and under the effect of light, photocatalyst can
The various organic compound of oxidation Decomposition, mineralising part inorganic matter, have antibacterial effect；Complex nonwoven material
The UV absorbent of material surface uniform pickup and antibacterial so that the composite nonwoven material of the application has
Antibacterial and aging-resistant performance.It is appreciated that its structure that it is critical only that of the application, and each layer is carried out
Different disposal, conventional use of reagent can be used as UV absorbent and antibacterial, the application's
In a kind of implementation, the method for preparing has carried out concrete restriction to both.
Additionally, nano-titania photocatalyst is currently used widest photocatalyst, it will be understood that other
Photocatalyst material can be used for the application, the application simply in view of the popularity of photocatalyst of titanium dioxide,
And it is nontoxic as construction material, it is advantageous to use nano-titania photocatalyst；It is not precluded from
Other photocatalyst can be used for the application, and this is only that the conventional of photocatalyst is replaced equally the application guarantor
In the range of protecting.
Preferably, the thickness of PA6 or PA66 electrostatic spinning nano fiber material layer is 0.1-0.2mm, and fiber is put down
The most a diameter of 100-200nm, average pore size is 0.5-1.0 μm.
It should be noted that in the application, average pore size is the average pore size of electrostatic spinning layer, electrostatic spinning
The non-weaving cloth formed is a kind of to have nanometer level microporous porous material, has the biggest specific surface area, infiltration
Property is good, and the feature that aperture is little, the application, by electrospinning conditions and state modulator, makes the PA6 of preparation
Or the average pore size of PA66 electrostatic spinning nano fiber material layer is 0.5-1.0 μm, can effectively stop construction material
Middle size is invaded in the mycete of 2-10um, ensures the normal circulation of air simultaneously.
Preferably, UV absorbent is the water solublity 2-acrylate-based benzophenone of hydroxyl-4-or 2-hydroxyl-4-
Methoxy benzophenone-5-sulfonic acid, antibacterial is carboxymethyl chitosan.
It should be noted that the UV absorbent that the application is used can be dissolved in water, then by coating
Method spreads on composite nonwoven material surface；And the antibacterial used is the one of natural antibacterial agent, there is nothing
Malicious, harmless, be readily biodegradable, the feature such as free from environmental pollution, harmless.
The another side of the application discloses the preparation method of the composite nonwoven material of the application, including following step
Suddenly,
(1) previously prepared one layer of PP viscose non-woven material layer, at its surface-coated nano titanium oxide light
Catalyst coating, forms the PP viscose non-woven material layer of photocatalyst coating；
(2) prepare another layer of PP viscose non-woven material layer again, be laid in aluminium sheet receptor surface,
Then carry out the electrostatic spinning of PA6 or PA66 on its surface, form PA6 or PA66 electrostatic spinning nano fiber
Material layer；
(3) the PP viscose non-woven material layer that the photocatalyst of step (1) is coated by cross lapping mode is used
It is superimposed on PA6 or the PA66 electrostatic spinning nano fiber material surface of step (2), is then coated with ultraviolet
Absorbent and antibacterial；
(4) hot rolling consolidation, forms described composite nonwoven material.
Preferably, step (1), specifically, first evenly spread in water by nano-titania photocatalyst, is made
Become photocatalyst suspension；Then, when PP melt extrusion, photocatalyst suspension sprayed by nozzle after by mist
Chemical conversion droplet, droplet is uniformly attached to the PP bath surface of extrusion, utilizes the heat of melt by the water in droplet
Divide evaporation, make nano titanium oxide uniformly be attached to material surface and form coating, thus make nanometer titanium dioxide
The PP viscose non-woven material layer of titanium photocatalyst coating.
It should be noted that PP melt extrusion is processed by the photocatalyst that the application utilizes atomization, and ingeniously
Moisture in droplet is evaporated by the wonderful heat utilizing melt itself, makes titanium dioxide be attached to bath surface shape
Become coating, improve photocatalyst dispersing uniformity, thus improve its service efficiency, it is to avoid dispersion inequality
The even quality problems caused；Preferably, the nozzle specification of ejection photocatalyst suspension is 0.5mm, is atomized
The concrete mode becoming droplet is that the suspension of ejection is atomized into difference under the compressed-air actuated clamping in nozzle both sides
The droplet of size；I.e. suspension is sprayed by the nozzle of 0.5mm, and the suspension of ejection is in nozzle two side compression
Various sizes of droplet it is atomized under the clamping of air.Also, it should be noted the thickness of coating can pass through
The size of droplet, the quantity for spray of droplet etc. is controlled, and concrete coating layer thickness according to each producing or can make
Depending on demand, do not limit at this.
It is furthermore preferred that the size of droplet is 5-10nm in the application.It should be noted that what the application used
The particle diameter of nano titanium oxide is also 5-10nm, therefore, is controlled by droplet at 5-10nm, can effectively make
Nano titanium oxide disperses, thus ensures photocatalyst coating uniformity；It is appreciated that the atomization of the application
The size of droplet is that the particle diameter with nano titanium oxide adapts, the change of size of the titanium dioxide used,
Droplet also will be along with change.Also, it should be noted although it is contemplated that the dispersing uniformity of titanium dioxide, incite somebody to action
Droplet controls in the scope adapted with titanium dioxide particle diameter, it will be understood that the size of droplet can also be two
The several times of titanium oxide particle diameter, as long as atomization itself is uniform, say, that contained by droplet
Titanium dioxide granule number is uniform, it is also possible to ensure the uniformity of coating, and simply its error can be more relatively large；
For this angle, it is also possible to controlled the thickness of coating by the size controlling droplet.
Preferably, step (2) is specifically, be laid in aluminium sheet by another layer of PP viscose non-woven material layer and connect
After receiving device surface, first PA6 or PA66 resin slicer is dissolved the spinning obtaining 0.1-0.4g/ml in a solvent
Liquid, applies high pressure positive electricity on spinning liquid shower nozzle, and the aluminium sheet receptor being covered with PP viscose non-woven material layer connects
Ground, carries out electrostatic spinning to spinning liquid, and spinning liquid rate of extrusion is 0.5-3ml/h, and spinning voltage is 30-40KV,
Receiving range is 20-35cm, and the fiber that electrostatic spinning is formed is received in PP viscose non-woven material layer surface,
Form PA6 or PA66 electrostatic spinning nano fiber material layer.
It should be noted that in the application spinning liquid be referred to routine electrostatic spinning preparation, therefore, its
Solvent can also be with reference to conventional use of solvent.In a kind of implementation of the application, preferably use formic acid
Or the solvent dimethylformamide of polyacrylonitrile.
Preferably, in PA6 or PA66 electrostatic spinning nano fiber material layer, average fibre diameter is
100-200nm, average pore size is 0.5-1.0 μm.
Preferably, being laid in the PP viscose non-woven material layer on aluminium sheet receptor surface, its thickness is
0.3-0.4mm, material grammes per square metre is 30-40g/m2。
Preferably, in step (3), the method for coating UV absorbent and antibacterial is, with ultra-violet absorption
Agent and antibacterial are sandwich layer, melting range be the paraffin of 52-58 DEG C be wall material；Shape in microcapsule prepares container
One-tenth upper strata is hot water layer, and lower floor is the reaction environment of cold water layer, and the temperature of hot water layer is higher than melting point of paraffin wax,
Paraffin is distributed to hot water layer, forms the paraffin of one layer of hot melt on hot water layer surface；By UV absorbent and
Antibacterial is dispersed in water, forms core material solution；Core material solution is dropped onto microcapsule and prepares in container,
When core drop is by wax layer, surface covers the paraffin of one layer of 70-100 μm, is automatically adjusted through hot water layer
Globulate, to during cold water layer cover paraffin condensed and hardened, formed parafilm wrap UV absorbent and/
Or the microcapsule solution of antibacterial；Microcapsule solution is coated uniformly on the surface of laminated composite material；Finally
By the hot rolling of step (4) by microcapsules, the UV absorbent of release and antibacterial are by non-woven material
Material absorbs, and forms composite nonwoven material.Preferably, the size of core drop is about 3mm, concrete
For 2-4mm.
It should be noted that the creative mode using microcapsule of the application makes UV absorbent and antibacterial
Agent uniformly and is effectively scattered in composite material surface, and utilizes hot rolling that microcapsules is discharged it cleverly
In UV absorbent and antibacterial；This mode has two benefits, and first, it is uniformly dispersed, microcapsule
Location release so that UV absorbent and antibacterial can be uniformly dispersed in appointment position；Second,
Service efficiency is high, and compared with the mode of directly coating or spraying UV absorbent and antibacterial, microcapsule is fixed
Position release, wastes almost without a bit, and consumption can well control.
Also, it should be noted the application is it is important that adopt in a way by UV absorbent and anti-
Microbial inoculum coating and non-woven material surface, the concrete consumption of UV absorbent and antibacterial is according to different lifes
Produce or depending on use demand, do not limit at this.
Owing to using above technical scheme, the application has the beneficial effects that:
The composite nonwoven material of the application, uses the combination of electrostatic spinning and viscose non-woven material, both protected
Hinder good material strength, reduce again fibre fineness；Possess the feature such as high porosity, high-specific surface area,
There is good barrier and breathability.Surface-coated at PP viscose non-woven material layer has nanometer titanium dioxide
Titanium photocatalyst coating, under the effect of light, the various organic compound of the oxidable decomposition of photocatalyst, mineralising portion
Divide inorganic matter, there is antibacterial effect.The UV absorbent that composite nonwoven material surface uniformly coats and
Antibacterial also improves ageing resistace and the anti-microbial property of material.The non-woven material phase that together prepared by blending
, there is not additive mixing inequality or separate out the production and mass defect caused in ratio.The compound non-of the application is knitted
Producing material material possesses good breathability for construction safety, weather-proof dispel mould, durable in use.
The preparation method of the composite nonwoven material of the application, compared with finishing method, simple to operate, one
As instrument on can be carried out；And it is high, ventilative that prepared composite nonwoven material is provided simultaneously with strength
Property antibiotic property good, the weather-proof feature such as persistently.Composite nonwoven material prepared by the present processes, according to ASTM
The Cycle1 standard conditions test of G154-06 standard, the strength retention of material is more than 90%, according to
AATCC100-2004 standard testing, bacteriostasis rate reaches more than 99%.
In the preferred preparation method of the application, use the photocatalyst of atomization that PP melt is processed, ensure
The uniformity of photocatalyst coating；Use mode disperse violet ultraviolet absorbers and the antibacterial of microcapsule, both ensured
The uniform pickup of UV absorbent and antibacterial, turn avoid be blended spin in due to dispersion uneven to life
Product process and the impact of the quality of production, it also avoid UV absorbent and antibacterial and separate out and cause producing
Impact.
Accompanying drawing explanation
Fig. 1 is the preparation technology flow chart of composite nonwoven material in the embodiment of the present application；
Fig. 2 is the structural representation of composite nonwoven material in the embodiment of the present application；
Wherein 1 be the PP viscose non-woven material layer of coating with nano titanic oxide photocatalyst, 2 for PA6 or
PA66 electrostatic spinning nano fiber material layer, 3 it is PP viscose non-woven material layer.
Detailed description of the invention
The composite nonwoven material of the application, uses electrostatic spinning to be combined mutually with viscose non-woven material, both solved
The shortcoming that electrospun material of having determined strength is low, is substantially reduced the fibre fineness of composite again simultaneously, by
There is in electrospun material the feature of high porosity, high-specific surface area, make composite nonwoven material not only have
There are good barrier, the most preferable breathability.
The preparation method of the application, simple to operate, compared with finishing method, flow process is simple, general non-
Can carry out on weaving material production line, production cost is low.Further, by PP viscose non-woven material layer
Surface-coated nano-titania photocatalyst coating, it is achieved antibacterial action；By being coated with at composite material surface
Cover UV absorbent and antibacterial, improve ageing resistace and the anti-microbial property of material；Pass through electrostatic spinning
Barrier and the breathability realizing material it is combined with viscose non-woven material；Make finally to prepare compound non-knits
Producing material material possesses the features such as strength height, good permeability, weather-proof antibiotic property are lasting；Spin, also without using to be blended
Avoid be blended spin the mixing of middle additive uneven or separate out caused to production process and the shadow of product quality
Ring.
It should be noted that in the application, the preparation of PP viscose non-woven material layer is referred to spinning of routine
Bonding, in order to ensure the quality of composite nonwoven material in the most preferred scheme, enters its grammes per square metre and thickness
Go restriction.Additionally, in another preferred version, the PP melt extruded is carried out nano titanium oxide light and touches
Matchmaker's spraying treatment, simply increases a sprayer unit at PP melt extrusion die head, sprays it,
Remaining is carried out with reference to conventional spun-bond process.
In the application, electrostatic spinning can also be carried out with reference to conventional technique, therefore, PA6 and PA66 spinning
In the preparation of liquid, the solvent used uses conventional solvent, is not specifically limited at this；The application
Preferred version in, the key parameter to electrostatic spinning, such as spinning liquid rate of extrusion, spinning voltage, reception
Distance etc. is defined, and defines thickness and the fibre diameter etc. of electrostatic spinning layer, more excellent to prepare
Composite nonwoven material.
In the application, the mode that each layer is combined consolidation can also be with reference to conventional compound consolidation technique, this Shen
In preferred version please, in order to prepare the specific demand of method, it is preferred to use method hot rolling consolidates；Tool
Body, this specific demand i.e. in preferred scheme in order to make microcapsules, discharge ultraviolet therein inhale
Receive agent and antibacterial.About microcapsule, it is referred to routine with the method that paraffin prepares microcapsule for wall material
Microcapsule preparation process, therefore, disperse medium can also use routine disperse medium, as long as not with ultraviolet
Light absorbers and antibacterial reaction affect its performance, are not specifically limited at this.The application simply creates
Core is changed into the application UV absorbent and the antibacterial of property, and creativeness microcapsule is coated on
Composite nonwoven material surface, to realize the fixed point release of UV absorbent and antibacterial.
In the application, PP i.e. polypropylene, PA6 i.e. nylon 6, PA66 i.e. nylon66 fiber.
Below by specific embodiment and combine accompanying drawing the application is described in further detail.Following example
Only the application is further described, should not be construed as the restriction to the application.
Embodiment one
The technological process of this example, as it is shown in figure 1, include the preparation of nano-titania photocatalyst coating, quiet
Electrospun, the preparation of aging resistance microcapsule and composite steps.The wherein preparation side of PP viscose non-woven material layer
Method with reference to conventional spunbond process, including polypropylene chip, melt extrude, filter metering, spinning, cooling,
Drawing-off, lapping.
The concrete preparation method of composite nonwoven material of this example is as follows:
(1) the medical grade nano-titania photocatalyst that Hong Kong Kang Li medical centre provides is selected, by titanium dioxide
Titanium photocatalyst is distributed in water uniformly, is prepared as the suspension of content of titanium dioxide 0.75%；By nano-silica
Changing titanium photocatalyst suspension to be sprayed by the nozzle of 0.5mm, the suspension of ejection is in nozzle both sides compressed air
Clamping under be atomized into various sizes of droplet, by adjust compressed-air actuated pressure nano titanium oxide is hanged
Turbid liquid impacts into the droplet of 10nm；Conventional spun-bond process is used to prepare ground floor PP viscose non-woven material layer,
Further, when PP melt extrusion, photocatalyst spraying is imposed at PP melt extrusion die head, utilize melt originally
Moisture in droplet is evaporated by the heat of body, makes titanium dioxide be attached to bath surface, finally spinning, paving
The PP viscose non-woven material surface of net preparation forms nano-titania photocatalyst coating, thus makes light and touch
The PP viscose non-woven material layer of matchmaker's coating；Wherein PP viscose non-woven material layer grammes per square metre is 25g/m2, thick
Degree is 0.25mm.
(2) preparing another layer of PP viscose non-woven material layer again, preparation method is identical with conventional method, nothing
Photocatalyst spraying treatment, thickness 0.3mm, grammes per square metre 30g/m need to be carried out2, and it is laid in aluminium sheet receptor
Surface；PA6 resin slicer is dissolved in the dimethyl formamide solution of polyacrylonitrile and obtains 0.15g/ml's
Spinning liquid, applies 40KV high pressure positive electricity at spinning liquid shower nozzle, is covered with the aluminium sheet of PP viscose non-woven material layer
Receptor ground connection, carries out electrostatic spinning, spinning liquid rate of extrusion 0.5-1ml/h to spinning liquid, and spinning voltage sets
Being set to 40KV, receiving range 30cm, the fiber that electrostatic spinning is formed is received in PP viscose non-woven material
Layer surface, forms Static Spinning material layer, and the thickness of material is 0.15mm, average fibre diameter 150nm, flat
All aperture 1um.
(3) preparation of aging resistance microcapsule: take 15 grams of chitosans, alkalizes in the NaOH solution of 50%
After, add 150ml isopropanol, proceed in there-necked flask, add monoxone 18g, react 2h, be warming up to 650 DEG C,
Reacting 2h, stopping heating again, regulation PH to neutral, washs with 70% methanol, then washs with absolute methanol,
600 DEG C of drying, obtain carboxymethyl chitosan；The product of gained is dissolved in water, after acetone precipitation, then with anhydrous
Washing with alcohol, is repeated 3-5 time, and products obtained therefrom is vacuum dried, and obtains refined carboxymethyl chitosan, as
The antibacterial of this example；The UV absorbent of this example uses the water solublity 2-acrylate-based benzophenone of hydroxyl-4-；
UV absorbent and antibacterial being mixed as sandwich layer according to the part by weight of 60:40, fusing point is 55 degree
Paraffin is wall material；Wall material and core being distributed in water respectively, has two water layers in container, upper strata is 70 DEG C
Hot water layer, lower floor is 20 DEG C of cold water layers, and owing to cold water density is relatively big, two-layer liquid separates naturally, as wall
The paraffin of material is i.e. dispersed in hot water layer, forms the paraffin of one layer of hot melt on hot water layer surface, controls core material solution
Forming the core drop of about about 3mm, fall at 5cm on the liquid level of container, core droplet impact is in warm
On molten paraffin, during by paraffin layer, surface covers the paraffin of one layer of about 70-100 μm, when hot water layer certainly
Dynamic be adjusted to spherical, paraffin cohesion hardening when subcooled water layer, form parafilm wrap UV absorbent and anti-
The microcapsule solution of microbial inoculum.
(4) the PP viscose non-woven material layer that the photocatalyst of step (1) coats is shifted through cross lapping
On the one-tenth lace curtaining of electrostatic spinning, make the PP viscose non-woven material stacking that the photocatalyst of step (1) coats
It is combined in the PA6 electrostatic spinning nano fiber material surface of step (2)；That then step (3) is prepared is micro-
Capsule solution employing coating even application is at the composite material surface of overlapping, then uses hot rolling answering overlapping
The compound consolidation of condensation material, utilizes hot rolling UV absorbent and antibacterial to be discharged from microcapsule, will
Material air-dries, and i.e. obtains the composite nonwoven material of this example.
The composite nonwoven material of this example is carried out tension stress test, breathability and permeability test, and difference
Use ASTM G154-06 standard and its strength retention of AATCC100-2004 standard testing and bacteriostasis rate.
Result shows, composite nonwoven material prepared by this example has a preferable tension stress ability, transverse and longitudinal strength than
Value is about 1:1, and uses ISO 9073-15 standard testing, and the breathability of material, 500～600mm/s, makes
Testing under flow 32LPM with TSI8130 instrument, the penetrance of material is 65～70%；According to ASTM
The Cycle1 standard conditions test of G154-06 standard, its strength retention more than 90%；According to
AATCC100-2004 standard testing, its bacteriostasis rate is up to more than 98%.Visible, prepared by this example compound non-
Weaving material possesses good breathability and barrier, and strength is high, and weather-proof antibiotic property is excellent.
Embodiment two
The technological process of this example is identical with embodiment one, wherein, and the preparation of nano-titania photocatalyst coating
During, by adjusting compressed-air actuated pressure, nano titanium oxide suspension is impacted into the droplet of 5nm；
Grammes per square metre for the PP viscose non-woven material layer of photocatalyst process is 28g/m2, thickness is 0.3mm.Electrostatic
In spinning technique, the thickness of the PP viscose non-woven material layer being laid in aluminium sheet receptor surface is 0.32mm,
Grammes per square metre 32g/m2, PA66 resin slicer is dissolved the spinning liquid obtaining 0.4g/ml in a solvent, at spinning liquid
Shower nozzle applies 40KV high pressure positive electricity, is covered with the aluminium sheet receptor ground connection of PP viscose non-woven material layer, to spinning
Silk liquid carries out electrostatic spinning, spinning liquid rate of extrusion 3ml/h, and spinning voltage is set as 40KV, receiving range
35cm, the fiber that electrostatic spinning is formed is received in PP viscose non-woven material layer surface, forms Static Spinning material
The bed of material, the thickness of material is 0.1mm, average fibre diameter 100nm, average pore size 0.5um.Aging resistance is micro-
In the preparation process of capsule, by the water solublity 2-acrylate-based benzophenone UV-absorber of hydroxyl-4-and carboxylic
Methyl chitosan antibacterial mixes as core according to the part by weight of 55:45.Remaining is identical with embodiment one.
The composite nonwoven material of this example is carried out tension stress test, breathability and permeability test, and difference
Use ASTM G154-06 standard and its strength retention of AATCC100-2004 standard testing and bacteriostasis rate.
Result shows, composite nonwoven material prepared by this example has a preferable tension stress ability, transverse and longitudinal strength than
Value is about 1:1, and uses ISO 9073-15 standard testing, and the breathability of material, 600～750mm/s, makes
Testing under flow 32LPM with TSI8130 instrument, the penetrance of material is 55～65%；According to ASTM
The Cycle1 standard conditions test of G154-06 standard, its strength retention more than 91%；According to
AATCC100-2004 standard testing, its bacteriostasis rate is up to more than 99%；Various aspects of performance is superior to embodiment
One.Visible, composite nonwoven material prepared by this example possesses good breathability and barrier, and strength is high,
Weather-proof antibiotic property is excellent.
Above content is to combine the further description that the application is made by specific embodiment, it is impossible to recognize
Determine the application be embodied as be confined to these explanations.Ordinary skill for the application art
For personnel, on the premise of conceiving without departing from the application, it is also possible to make some simple deduction or replace,
All should be considered as belonging to the protection domain of the application.
Claims (9)
1. the preparation method of a composite nonwoven material, it is characterised in that: comprise the following steps,
(1) previously prepared one layer of PP viscose non-woven material layer, at its surface-coated nano titanium oxide light
Catalyst coating, forms the PP viscose non-woven material layer of photocatalyst coating；
(2) prepare another layer of PP viscose non-woven material layer again, be laid in aluminium sheet receptor surface,
Then carry out the electrostatic spinning of PA6 or PA66 on its surface, form PA6 or PA66 electrostatic spinning nano fiber
Material layer；
(3) the PP viscose non-woven material layer that the photocatalyst of step (1) is coated by cross lapping mode is used
It is superimposed on PA6 or the PA66 electrostatic spinning nano fiber material surface of step (2), is then coated with ultraviolet
Absorbent and antibacterial；
(4) hot rolling consolidation, forms described composite nonwoven material；
Described step (1) is specifically, first evenly spread to nano-titania photocatalyst, in water, make light
Catalyst suspension；Then, when PP melt extrusion, photocatalyst suspension is atomized into after being sprayed by nozzle
Droplet, droplet is uniformly attached to the PP bath surface of extrusion, utilizes the heat of melt to be steamed by the moisture in droplet
Send out, make nano titanium oxide uniformly be attached to material surface and form coating, thus make nano titanium oxide light
The PP viscose non-woven material layer of catalyst coating.
Preparation method the most according to claim 1, it is characterised in that: the size of described droplet is 5-10nm.
Preparation method the most according to claim 1, it is characterised in that: described step (2) specifically,
After described another layer of PP viscose non-woven material layer is laid in aluminium sheet receptor surface, first by PA6 or PA66
Resin slicer dissolves the spinning liquid obtaining 0.1-0.4g/ml in a solvent, applies high positive pressure on spinning liquid shower nozzle
Electricity, is covered with the aluminium sheet receptor ground connection of PP viscose non-woven material layer, spinning liquid is carried out electrostatic spinning, spins
Silk liquid rate of extrusion is 0.5-3ml/h, and spinning voltage is 30-40KV, and receiving range is 20-35cm, electrostatic
The fiber that spinning is formed is received in PP viscose non-woven material layer surface, forms PA6 or PA66 Static Spinning
Nanofibrous material.
Preparation method the most according to claim 3, it is characterised in that: described PA6 or PA66 Static Spinning
In nanofibrous material, average fibre diameter is 100-200nm, and average pore size is 0.5-1.0 μm.
Preparation method the most according to claim 3, it is characterised in that: it is laid in aluminium sheet receptor surface
PP viscose non-woven material layer, its thickness is 0.3-0.4mm, and material grammes per square metre is 30-40g/m2。
Preparation method the most according to claim 1, it is characterised in that: coating purple in described step (3)
The method of ultraviolet absorbers and antibacterial is, with UV absorbent and antibacterial as sandwich layer, melting range is
The paraffin of 52-58 DEG C is wall material；Forming upper strata in microcapsule prepares container is hot water layer, and lower floor is cold water layer
Reaction environment, the temperature of hot water layer be higher than melting point of paraffin wax, paraffin is distributed to hot water layer, hot water layer
Surface forms the paraffin of one layer of hot melt；UV absorbent and antibacterial are dispersed in water, form core
Material solution；Core material solution dropping onto microcapsule and prepares in container, when core drop is by wax layer, surface is covered
The paraffin of one layer of 70-100 μm of lid, is automatically adjusted globulate through hot water layer, to the stone covered during cold water layer
Wax is condensed and is hardened, and forms parafilm wrap UV absorbent and/or the microcapsule solution of antibacterial；By micro-
Capsule solution is coated uniformly on the surface of laminated composite material；The last hot rolling by step (4) is by microcapsule
Broken, UV absorbent and the antibacterial of release are absorbed by non-woven material, form described complex nonwoven
Material.
7. use a composite nonwoven material prepared by the preparation method described in any one of claim 1-6, its
It is characterised by: include at least two-layer PP viscose non-woven material layer, and be folded in two-layer PP spunbonded nonwoven
PA6 or PA66 electrostatic spinning nano fiber material layer between material layer, and the table of described composite nonwoven material
Face uniform pickup has UV absorbent and antibacterial；
Further, the two-layer PP viscose non-woven material of PA6 or PA66 electrostatic spinning nano fiber material layer is clamped
In Ceng, the surface-coated of at least one PP viscose non-woven material layer has nano-titania photocatalyst coating.
Composite nonwoven material the most according to claim 7, it is characterised in that: described PA6 or PA66
The thickness of electrostatic spinning nano fiber material layer is 0.1-0.2mm, and average fibre diameter is 100-200nm, averagely
Aperture is 0.5-1.0 μm.
9. according to the composite nonwoven material described in claim 7 or 8, it is characterised in that: described ultraviolet is inhaled
Receiving agent is the water solublity 2-acrylate-based benzophenone of hydroxyl-4-or ESCALOL 567-5-sulphur
Acid, described antibacterial is carboxymethyl chitosan.
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| RU2020105297A (en) * | 2017-07-28 | 2021-08-05 | Кимберли-Кларк Ворлдвайд, Инк. | NANOPOROUS SUPERABORATIVE PARTICLES |
| CN107858856B (en) * | 2017-10-17 | 2019-11-22 | 山东冠骏清洁材料科技有限公司 | A kind of durability gas-phase anticorrosive non-woven fabric and preparation method thereof |
| CN108221184A (en) * | 2018-04-03 | 2018-06-29 | 江苏盛纺纳米材料科技股份有限公司 | Nano-spun melts composite nonwoven material and its preparation method and application |
| CN108774806A (en) * | 2018-06-26 | 2018-11-09 | 桐乡守敬应用技术研究院有限公司 | A kind of composite non-weaving cloth of temperature adjustment function and preparation method thereof |
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| EP3608601B1 (en) * | 2018-08-06 | 2024-06-12 | Zephyros Inc. | Gas-duct with a sound absorbing component |
| US11224860B2 (en) * | 2019-02-28 | 2022-01-18 | The Hong Kong Polytechnic University | Nanofiber surfaces |
| CN110228250A (en) * | 2019-06-29 | 2019-09-13 | 江苏盛纺纳米材料科技股份有限公司 | A kind of photo-catalytic nano antibacterial nonwoven material and preparation method thereof |
| CN116141766A (en) * | 2023-04-20 | 2023-05-23 | 广州市传麒制衣有限公司 | Multilayer composite textile fabric and preparation method thereof |
| US11958308B1 (en) | 2023-05-31 | 2024-04-16 | G13 Innovation In Production Ltd | Thermal paper, and methods and systems for forming the same |
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| CN101492885B (en) * | 2008-01-22 | 2012-09-12 | 东丽纤维研究所（中国）有限公司 | Electrostatic resistant textile and method for producing the same |
| US7922959B2 (en) * | 2008-08-01 | 2011-04-12 | E. I. Du Pont De Nemours And Company | Method of manufacturing a composite filter media |
| CN101829454A (en) * | 2009-03-12 | 2010-09-15 | 北京服装学院 | Preparation method of electric spinning-based composite nano fiber material for filters |
| CN101564914B (en) * | 2009-05-27 | 2011-06-22 | 东华大学 | Preparation method of nanometer cobweb/ nanometer fiber composite protective material |
| CN102102299A (en) * | 2009-12-18 | 2011-06-22 | 上海安妮水晶设计有限公司 | Material for multifunctional shoe pad and preparation method thereof |
| CN103233285A (en) * | 2012-12-05 | 2013-08-07 | 世纪宝姿（厦门）实业有限公司 | Antistatic, moisture-regaining and dyeable core pattern complex fiber and fabric made by same |
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