CN106498554A - A kind of boracic chitosan/polyvinyl alcohol composite fibre and preparation method thereof, non-weaving cloth - Google Patents
A kind of boracic chitosan/polyvinyl alcohol composite fibre and preparation method thereof, non-weaving cloth Download PDFInfo
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- CN106498554A CN106498554A CN201610915907.XA CN201610915907A CN106498554A CN 106498554 A CN106498554 A CN 106498554A CN 201610915907 A CN201610915907 A CN 201610915907A CN 106498554 A CN106498554 A CN 106498554A
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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
- D01F8/10—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one other macromolecular compound obtained by reactions only involving carbon-to-carbon unsaturated bonds as constituent
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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
- D01D1/00—Treatment of filament-forming or like material
- D01D1/02—Preparation of spinning solutions
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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
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/06—Wet spinning methods
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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
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/12—Stretch-spinning methods
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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
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/18—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from other substances
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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
- D04H1/42—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
- 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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/005—Synthetic yarns or filaments
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- Health & Medical Sciences (AREA)
- Toxicology (AREA)
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- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
The present invention relates to a kind of boracic chitosan/polyvinyl alcohol composite fibre and preparation method thereof, non-weaving cloth, belong to polyvinyl alcohol composite fiber technical field.The composite fibre is mainly grouped into by the group of following mass percent：Shitosan 1%～9.9%, polyvinyl alcohol 90%～98.9%, boron element 0.1%～1.0%.The composite fibre is the spinning solution that shitosan, polyvinyl alcohol blending are made boracic, makes through alkaline process wet spinning；There is excellent mechanical property and anti-microbial property；The fiber number of the composite fibre is 1.11～5dtex, and it is 5.0～8.0cN/dtex to do fracture strength, and dry elongation at break is 7～20%, and initial modulus reaches 100～200cN/dtex；Weight is determined as 60～100g/m with what the composite fibre was made2Non-weaving cloth, to staphylococcus aureus bacteriostasis rate up to more than 99.7%, to Escherichia coli bacteriostasis rate up to more than 99.5%.
Description
Technical field
The invention belongs to polyvinyl alcohol composite fiber technical field, and in particular to a kind of boracic chitosan/polyvinyl alcohol is multiple
Condensating fiber.Also relate to a kind of preparation method of boracic chitosan/polyvinyl alcohol composite fibre and using the composite fibre system
Into non-weaving cloth.
Background technology
Shitosan system white or canescence sheet or powdery solid, translucent, slightly pearly luster are tasteless, odorless, nontoxic
Property, can preserve for a long time under drying condition.Shitosan is unique alkaline polysaccharide in nature, and not only there is good bio-compatible
Property, and nontoxic, easily biological-degradable, in terms of being mainly used in medical and health, can make medical accessory, such as operation suture thread,
Non-weaving cloth, gauze, bandage, hemostatic cotton etc.；Shitosan can be additionally used in suppressing tumour medicine, styptic, anticoagulant etc..
Shitosan has good spinnability.But compared with cotton fiber, shitosan extensibility is little, the spy of easy fracture after bending
Point so as to which single fiber fineness is thick compared with cotton fiber, and intensity is also low than cotton fiber.The chitin fiber fracture strength of development is only in early days
1.05cN/dtex～1.80cN/dtex, although having spinnability, fibre strength is too low, can affect final yarn strength, also
Broken end and the fault for increasing weaving process can be caused.With chitin fiber research and develop deepen continuously, the quality of raw material and
The constantly improve of spinning technique, greatly improves the spinnability of chitin fiber.Can spinning filament yarn and short using shitosan raw material
Fiber, its chopped fiber can also pure spinning or with cotton, hair, silk, fiber crops and other staple fibre blending, and then develop a series of guarantor
Strong textile.
As the chitin fiber intensity that wet spinning is obtained is relatively low, its subsequent applications is hindered, therefore can adopt wet-dry change
Spining technology, the technique can reinforcing fiber mechanical property.Yang Qing just enters to the shitosan stoste being dissolved in acetic acid aqueous solution
Dry-wet spinning is gone, compared with wet spinning, difference is the selection of air gap length.Result of study shows：Most preferably
Air gap length make stoste thread obtain axial tension in air layer, and then improve fibre strength, important except this
Outside factor, corresponding optimal spinneret draft ratio is also strengthened fibre strength.But the technology is in the actual behaviour of factory
Difficult larger in work, the presence of air layer such as in extensive spinneret can cause the adverse consequences such as strand adhesion.So the technology
It is only limited to the small-scale spinning in laboratory.
As pure chitosan fiber cost of material is high, pure textile product is expensive, in addition pure chitosan fiber mechanical strength
Preferable not enough Deng fiber quality, limit its application.The blended fiber that function admirable can be obtained by blending and modifying, at present
There are collagen, gelatin, polyvinyl alcohol, viscose glue etc. with the macromolecular material of chitosan blend spinning.
Liang Liefeng etc. is studied into fine feasibility with polyvinyl alcohol blending to shitosan, is as a result shown：Shitosan
There is good blending copolymerizable, blend there is good spinning fibre forming property with polyvinyl alcohol, blend hydrodynamics is special
Levy and stablize, once replenishment of process route and technical conditions, it is possible to achieve conventional spinning production.Cheng Ruihua etc. adopts wet spinning
Technology prepares shitosan and polyvinyl alcohol blending fiber, obtains the preferable blended fiber of mechanical property, draws the following conclusions：1st, wet
Method spinning technique is obtained the optimal shitosan of mechanical property and polyvinyl alcohol blending fiber, carries compared with the intensity of chitin fiber
High by 32%, elongation at break improves 25%, it is seen that polyvinyl alcohol improves shitosan while being added in reduces cost
Mechanical property with polyvinyl alcohol blending fiber.2nd, shitosan is crystallized with polyvinyl alcohol blending fiber compared with chitin fiber
Degree is high, and vitrification point is slightly higher, the characteristics of its cross section and longitudinal form meet wet spinning.Shitosan and PVA blended fibers
The premium properties of chitin fiber, such as moisture absorption and desorption property, anti-microbial property are remained to the full extent.
In prior art, CN104294477A discloses a kind of preparation method of polysaccharide composite fibrous material, including 1) will
Deacetylation is dissolved in acid by the carboxymethyl chitosan of 1000-10000 and makes less than 0.1%, molecular weight more than 85%, protein content
Volumetric concentration is 8%～15% carboxymethyl chitosan sugar acid solution；2) polyvinyl alcohol is dissolved in water it is prepared into mass concentration and is
25%～35% polyvinyl alcohol water solution；3) carboxymethyl chitosan sugar acid solution is added to mass percent 5%～20%
In poly-vinyl alcohol solution, temperature is increased to 75～90 DEG C, reacts 1～10h, solution-polymerized SBR is prepared into polysaccharide composite then fine
Dimension.The polysaccharide fiber material has preferable antibacterial, absorption and hydrophilic effect, makes mouth mask filter disc or mouth mask, for a long time with
Skin keeps contact, can effectively kill skin pore bacterium.
But, simple employing shitosan and polyvinyl alcohol blending spinning, the mechanical property of gained complex fiber material is also
It is relatively poor, it is impossible to meet the requirement for using.
Content of the invention
It is an object of the invention to provide a kind of high strength and modulus boracic chitosan/polyvinyl alcohol composite fibre, so as to solve
Certainly in prior art composite fibre poor mechanical property problem.
Second object of the present invention is to provide a kind of preparation method of boracic chitosan/polyvinyl alcohol composite fibre.
Third object of the present invention is to provide a kind of non-weaving cloth that makes using above-mentioned composite fibre.
In order to realize that object above, the technical solution adopted in the present invention be：
A kind of boracic chitosan/polyvinyl alcohol composite fibre, is mainly grouped into by the group of following mass percent：Shitosan
1%～9.9%, polyvinyl alcohol 90%～98.9%, boron element 0.1%～1.0%.
Preferably, the boracic chitosan/polyvinyl alcohol composite fibre, is mainly grouped by the group of following mass percent
Into：Shitosan 1%～9.9%, polyvinyl alcohol 90%～98.9%, boron element 0.1%～0.5%.
In the boracic chitosan/polyvinyl alcohol composite fibre of the present invention, shitosan is the unique alkaline polysaccharide of nature, no
Only there is good biocompatibility, and nontoxic, easily biological-degradable.Fiber containing shitosan has excellent bacteriostatic deodorizing
Performance, reason are that have many active amino on shitosan macromolecule chain so as to positive charge, and bacterium and virus are general all
It is electronegative, when they run into shitosan, positive and negative charge is neutralized, and bacterium internal structure gets muddled and can not multiply and dead
Die.Therefore bacterium can be prevented to multiply using the fiber containing shitosan, eliminates peculiar smell.
The boracic chitosan/polyvinyl alcohol composite fibre of the present invention, mainly by shitosan, polyvinyl alcohol and boron element group
Into with excellent mechanical property and anti-microbial property；After testing, the fiber number of the composite fibre is 1.11～5dtex, does fracture strong
Spend for 5.0～8.0cN/dtex, dry elongation at break is 7～20%, and initial modulus reaches 100～200cN/dtex；Multiple with this
What condensating fiber was made determines weight for 60～100g/m2Non-weaving cloth, to staphylococcus aureus bacteriostasis rate up to more than 99.7%, right
Escherichia coli bacteriostasis rate is up to more than 99.5%.
Preferably, the deacetylation ＞ 93% of the shitosan.
Preferably, the degree of polymerization of the polyvinyl alcohol is 1700～1800, alcoholysis degree >=99%.
The boracic chitosan/polyvinyl alcohol composite fibre of the present invention, is that shitosan, polyvinyl alcohol blending are made boracic
Spinning solution, makes through alkaline process wet spinning.In gained boracic chitosan/polyvinyl alcohol composite fibre, boron element and poly- second
Enol, shitosan are present into complex form.
A kind of preparation method of above-mentioned boracic chitosan/polyvinyl alcohol composite fibre, comprises the following steps：
1) in polyvinyl alcohol water solution, boric acid, shitosan is added to be mixed, regulation system pH value is that 3～6, temperature is
95～100 DEG C, obtain spinning solution；
2) by step 1) gained spinning solution carries out wet spinning, obtains final product.
Step 1) in, described being mixed into stirs mixing, and the time of stirring is at least 2h.The spinning solution in the preparation,
First polyvinyl alcohol is added in 45～55 DEG C of water and is warming up to 95～100 DEG C, add boric acid while stirring, stirred to completely molten
Solution, obtains borated poly-vinyl alcohol solution；Shitosan powder is added, is thoroughly mixed.Regulate pH and the temperature of system
After degree, through filtration, deaeration, spinning solution is obtained.The deaeration is standing and defoaming.
Wherein, the consumption of shitosan is formula ratio.The consumption of boric acid is obtained according to the conversion of the boron element of formula ratio.
Step 1) in, acid used by regulation system pH value from acetic acid, formic acid, benzoic one or two.
In the spinning solution, the mass concentration sum of polyvinyl alcohol and shitosan is 10%～20%.
Step 2) during wet spinning, the temperature of coagulating bath is 40～50 DEG C, and pH value is 8～12.
The coagulating bath is metabisulfite solution that mass concentration is 340～420g/L.
Step 2) in, wet spinning gained as-spun fibre is neutralized, wet drawing-off, wash, be thermally treated resulting in Semifinished fibre,
Again drying, oil, cut off, obtain boracic chitosan/polyvinyl alcohol composite fibre.
The wet drawing-off is 1.5～2 times of drawing-off in 88～92 DEG C of saltcake bath；In the saltcake bath, the matter of sodium sulphate
Amount concentration is 350～390g/L.
Under the conditions of the heat treatment is xeothermic 210～220 DEG C, 1.5～2 times are stretched.
The preparation method of the boracic chitosan/polyvinyl alcohol composite fibre of the present invention, prepares borated polyethylene first
Alcohol solution, then shitosan is prepared spinning solution with the polyvinyl alcohol water solution blending, through wet spinning technology manufacture
Into.The raw material used by the method is convenient source, and wide material sources are cheap；Prepared using existing boracic Wet-spinning
The production line of high strength and modulus vinal can achieve industrialized production, and short with technological process, equipment investment is little,
The big low cost of yield, the safe and reliable advantage of production process.
A kind of non-weaving cloth that is made using above-mentioned boracic chitosan/polyvinyl alcohol composite fibre.Existing skill can be adopted
The manufacturing process of the conventional non-woven fabrics of art makes various types of non-weaving cloths.
The non-weaving cloth that is made using above-mentioned boracic chitosan/polyvinyl alcohol composite fibre, with excellent mechanical property
And anti-microbial property；And the non-weaving cloth grammes per square metre is low, intensity is high, and modulus is big, and the characteristics of with good permeability, low cost, dress is relaxed
Suitable soft.Weight is determined as 60～100g/m with what the composite fibre made2Non-weaving cloth, staphylococcus aureus bacteriostasis rate is reached
More than 99.7%, to Escherichia coli bacteriostasis rate up to more than 99.5%.
Specific embodiment
With reference to specific embodiment, the present invention is further illustrated.
One kind or two in sour formic acid, acetic acid, benzoic acid in specific embodiment, used by regulation system pH value
Kind.
Embodiment 1
The boracic chitosan/polyvinyl alcohol composite fibre of the present embodiment, is mainly grouped into by the group of following mass percent：
Shitosan 3%, polyvinyl alcohol 96.7%, boron element 0.3%.Wherein, the degree of polymerization of polyvinyl alcohol is 1700～1800, alcoholysis degree
>=99%；Deacetylating degree of chitosan>93%.
The preparation method of the boracic chitosan/polyvinyl alcohol composite fibre of the present embodiment, comprises the following steps：
1) polyvinyl alcohol is added in 50 DEG C of water and is warming up to 95 DEG C, add formula ratio boron element corresponding amount while stirring
Boric acid, stirs to being completely dissolved, obtains poly-vinyl alcohol solution；The chitosan powder of formula ratio is added in gained poly-vinyl alcohol solution
Body, is sufficiently stirred for 2h and is mixed, and it is 95 DEG C that regulation system pH value is 4.0, temperature, by filtration, standing and defoaming 6h, makes shell
The mass concentration sum of glycan and polyvinyl alcohol is 15% spinning solution；
2) by step 1) gained spinning solution carries out wet spinning, controls saltcake coagulating bath (sulfuric acid during wet spinning
The mass concentration of sodium be 380g/L) temperature be 44 DEG C, pH value be 10；Wet spinning gained as-spun fibre is neutralized, wet drawing-off,
Semifinished fibre is obtained after washing, heat treatment, wherein, wet drawing-off is in the metabisulfite solution that 90 DEG C, mass concentration are 370 DEG C
1.5 times of drawing-off, heat treatment are at xeothermic 210 DEG C to stretch 1.5 times；Gained Semifinished fibre is again through washing, drying, oil, cutting
Disconnected, obtain final product boracic chitosan/polyvinyl alcohol composite fibre.
Above-mentioned gained composite fibre is made weight is determined for 100g/m2Non-weaving cloth.
Embodiment 2
The boracic chitosan/polyvinyl alcohol composite fibre of the present embodiment, is mainly grouped into by the group of following mass percent：
Shitosan 4%, polyvinyl alcohol 95.7%, boron element 0.3%.Wherein, the degree of polymerization of polyvinyl alcohol is 1700～1800, alcoholysis degree
>=99%；Deacetylating degree of chitosan>93%.
The preparation method of the boracic chitosan/polyvinyl alcohol composite fibre of the present embodiment, comprises the following steps：
1) polyvinyl alcohol is added in 50 DEG C of water and is warming up to 95 DEG C, add formula ratio boron element corresponding amount while stirring
Boric acid, stirs to being completely dissolved, obtains poly-vinyl alcohol solution；The chitosan powder of formula ratio is added in gained poly-vinyl alcohol solution
Body, is sufficiently stirred for 2h and is mixed, and it is 100 DEG C that regulation system pH value is 6.0, temperature, by filtration, standing and defoaming 6h, makes
The mass concentration sum of shitosan and polyvinyl alcohol is 10% spinning solution；
2) by step 1) gained spinning solution carries out wet spinning, controls saltcake coagulating bath (sulfuric acid during wet spinning
The mass concentration of sodium be 340g/L) temperature be 50 DEG C, pH value be 8；Wet spinning gained as-spun fibre is neutralized, wet drawing-off,
Semifinished fibre is obtained after washing, heat treatment, wherein, wet drawing-off is in the metabisulfite solution that 88 DEG C, mass concentration are 350 DEG C
2 times of drawing-off, heat treatment are at xeothermic 220 DEG C to stretch 2 times；Gained Semifinished fibre is again through washing, drying, oil, cutting off, i.e.,
Obtain boracic chitosan/polyvinyl alcohol composite fibre.
Above-mentioned gained composite fibre is made weight is determined for 90g/m2Non-weaving cloth.
Embodiment 3
The boracic chitosan/polyvinyl alcohol composite fibre of the present embodiment, is mainly grouped into by the group of following mass percent：
Shitosan 5%, polyvinyl alcohol 94.6%, boron element 0.4%.Wherein, the degree of polymerization of polyvinyl alcohol is 1700～1800, alcoholysis degree
>=99%；Deacetylating degree of chitosan>93%.
The preparation method of the boracic chitosan/polyvinyl alcohol composite fibre of the present embodiment, comprises the following steps：
1) polyvinyl alcohol is added in 50 DEG C of water and is warming up to 95 DEG C, add formula ratio boron element corresponding amount while stirring
Boric acid, stirs to being completely dissolved, obtains poly-vinyl alcohol solution；The chitosan powder of formula ratio is added in gained poly-vinyl alcohol solution
Body, is sufficiently stirred for 2h and is mixed, and it is 95 DEG C that regulation system pH value is 5.0, temperature, by filtration, standing and defoaming 6h, makes shell
The mass concentration sum of glycan and polyvinyl alcohol is 20% spinning solution；
2) by step 1) gained spinning solution carries out wet spinning, controls saltcake coagulating bath (sulfuric acid during wet spinning
The mass concentration of sodium be 420g/L) temperature be 40 DEG C, pH value be 12；Wet spinning gained as-spun fibre is neutralized, wet drawing-off,
Semifinished fibre is obtained after washing, heat treatment, wherein, wet drawing-off is in the metabisulfite solution that 92 DEG C, mass concentration are 390 DEG C
2 times of drawing-off, heat treatment are at xeothermic 215 DEG C to stretch 1.5 times；Gained Semifinished fibre again through washing, drying, oil, cutting off,
Obtain final product boracic chitosan/polyvinyl alcohol composite fibre.
Above-mentioned gained composite fibre is made weight is determined for 80g/m2Non-weaving cloth.
Embodiment 4
The boracic chitosan/polyvinyl alcohol composite fibre of the present embodiment, is mainly grouped into by the group of following mass percent：
Shitosan 6%, polyvinyl alcohol 93.6%, boron element 0.4%.Wherein, the degree of polymerization of polyvinyl alcohol is 1700～1800, alcoholysis degree
>=99%；Deacetylating degree of chitosan>93%.
The preparation method of the boracic chitosan/polyvinyl alcohol composite fibre of the present embodiment, comprises the following steps：
1) polyvinyl alcohol is added in 50 DEG C of water and is warming up to 95 DEG C, add formula ratio boron element corresponding amount while stirring
Boric acid, stirs to being completely dissolved, obtains poly-vinyl alcohol solution；The chitosan powder of formula ratio is added in gained poly-vinyl alcohol solution
Body, is sufficiently stirred for 2h and is mixed, and it is 100 DEG C that regulation system pH value is 3.0, temperature, by filtration, standing and defoaming 6h, makes
The mass concentration sum of shitosan and polyvinyl alcohol is 13% spinning solution；
2) by step 1) gained spinning solution carries out wet spinning, controls saltcake coagulating bath (sulfuric acid during wet spinning
The mass concentration of sodium be 400g/L) temperature be 50 DEG C, pH value be 10；Wet spinning gained as-spun fibre is neutralized, wet drawing-off,
Semifinished fibre is obtained after washing, heat treatment, wherein, wet drawing-off is in the metabisulfite solution that 90 DEG C, mass concentration are 370 DEG C
1.5 times of drawing-off, heat treatment are at xeothermic 220 DEG C to stretch 2 times；Gained Semifinished fibre again through washing, drying, oil, cutting off,
Obtain final product boracic chitosan/polyvinyl alcohol composite fibre.
Above-mentioned gained composite fibre is made weight is determined for 60g/m2Non-weaving cloth.
As shown in table 1, preparation method is with enforcement for the composition of the boracic chitosan/polyvinyl alcohol composite fibre of embodiment 5-9
Example 1.
The composition of the boracic chitosan/polyvinyl alcohol composite fibre of 1 embodiment 5～9 of table
Comparative example
The pure vinal that comparative example is prepared for wet spinning, preparation method are as follows：
1) 100kg polyvinyl alcohol is added to the water, is warming up to 90 DEG C, stirred to being completely dissolved, the pH value of control system is
7.5, system temperature is 95 DEG C, through filtration, standing and defoaming 7h, makes the spinning solution that mass concentration is 18%；
2) by step 1) gained spinning solution carries out wet spinning, and it is 6.5 to control coagulation bath temperature for 50 DEG C, pH value, warp
Semifinished fibre is obtained after wet drawing-off, heat treatment；Vinal is obtained afterwards through washing, drying, oil, cutting off again.
Above-mentioned vinal is made weight is determined for 100g/m2Non-weaving cloth.
Experimental example
This experimental example detects the polyvinyl alcohol of each embodiment gained boracic chitosan/polyvinyl alcohol composite fibre and comparative example
The performance of fiber, and the anti-microbial property of non-weaving cloth.As a result as shown in table 2.
The anti-microbial property testing result of the fibre property and non-weaving cloth of 2 embodiment of table and comparative example
From the result of the test of table 2, the compound fibre of the high strength and modulus boracic chitosan/polyvinyl alcohol that the present invention is provided
The mechanical property of dimension is good, can meet processing request, and mechanical property is far superior to single vinal, for determining weight 60
～100g/m2Non-weaving cloth, disclosure satisfy that the use requirement of high strength and modulus non-woven fabrics, antibacterial.
Claims (10)
1. a kind of boracic chitosan/polyvinyl alcohol composite fibre, it is characterised in that：The main group by following mass percent is grouped
Into：Shitosan 1%～9.9%, polyvinyl alcohol 90%～98.9%, boron element 0.1%～1.0%.
2. boracic chitosan/polyvinyl alcohol composite fibre according to claim 1, it is characterised in that：The shitosan
Deacetylation ＞ 93%.
3. boracic chitosan/polyvinyl alcohol composite fibre according to claim 1, it is characterised in that：The polyvinyl alcohol
The degree of polymerization be 1700～1800, alcoholysis degree >=99%.
4. a kind of preparation method of the boracic chitosan/polyvinyl alcohol composite fibre as any one of claim 1-3, its
It is characterised by：Comprise the following steps：
1) in polyvinyl alcohol water solution, add boric acid, shitosan to be mixed, regulation system pH value be 3～6, temperature be 95～
100 DEG C, obtain spinning solution；
2) by step 1) gained spinning solution carries out wet spinning, obtains final product.
5. the preparation method of boracic chitosan/polyvinyl alcohol composite fibre according to claim 4, it is characterised in that：Institute
State in spinning solution, the mass concentration sum of polyvinyl alcohol and shitosan is 10%～20%.
6. the preparation method of boracic chitosan/polyvinyl alcohol composite fibre according to claim 4, it is characterised in that：Step
During rapid 2) wet spinning, the temperature of coagulating bath is 40～50 DEG C, and pH value is 8～12.
7. the preparation method of boracic chitosan/polyvinyl alcohol composite fibre according to claim 6, it is characterised in that：Institute
Coagulating bath is stated for metabisulfite solution that mass concentration is 340～420g/L.
8. the preparation method of boracic chitosan/polyvinyl alcohol composite fibre according to claim 4, it is characterised in that：Step
Rapid 2) in, wet spinning gained as-spun fibre is neutralized, wet drawing-off, wash, be thermally treated resulting in Semifinished fibre, then drying,
Oil, cut off, obtain boracic chitosan/polyvinyl alcohol composite fibre.
9. the preparation method of boracic chitosan/polyvinyl alcohol composite fibre according to claim 8, it is characterised in that：Institute
It is 1.5～2 times of drawing-off in 88～92 DEG C of saltcake bath to state wet drawing-off；In the saltcake bath, the mass concentration of sodium sulphate is 350
～390g/L.
10. what a kind of boracic chitosan/polyvinyl alcohol composite fibre using as any one of claim 1-3 was made is non-
Woven cloths.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610915907.XA CN106498554A (en) | 2016-10-20 | 2016-10-20 | A kind of boracic chitosan/polyvinyl alcohol composite fibre and preparation method thereof, non-weaving cloth |
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| CN109295538A (en) * | 2018-09-29 | 2019-02-01 | 浙江和也健康科技有限公司 | A kind of antibacterial and deodorizing textile fabric and preparation method thereof |
| CN112048821A (en) * | 2020-08-24 | 2020-12-08 | 浙江隆泰医疗科技股份有限公司 | Preparation process of non-woven fabric containing biological antibacterial components |
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