CN106435832A - Method for preparing chitosan/bioglass composite fibers - Google Patents
Method for preparing chitosan/bioglass composite fibers Download PDFInfo
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- CN106435832A CN106435832A CN201610847878.8A CN201610847878A CN106435832A CN 106435832 A CN106435832 A CN 106435832A CN 201610847878 A CN201610847878 A CN 201610847878A CN 106435832 A CN106435832 A CN 106435832A
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- bio
- vitric
- shitosan
- composite fibre
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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
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
-
- 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
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
-
- 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
Abstract
The invention relates to a method for preparing chitosan/bioglass composite fibers. The method includes steps of 1), dissolving chitosan with a low molecular weight by the aid of chitosan solvents to obtain carrier solution; 2), mixing bioglass powder and the carrier solution with each other under intense shear effects of stirring equipment to obtain bioglass mother liquor; 3), injecting the bioglass mother liquor into chitosan spinning solution in an online adding mode to obtain chitosan/bioglass spinning solution and extruding, coagulating and drawing the chitosan/bioglass spinning solution to obtain the chitosan/bioglass composite fibers. The method has the advantages that the bioglass powder of the chitosan/bioglass composite fibers prepared by the aid of the method is uniformly distributed, and carriers can be solidified and formed along with fibers without extra auxiliaries in solvent and coagulating bath systems; the method for forming the chitosan/bioglass composite fibers is simple and is high in efficiency, and functional chitosan fibers can be produced on the basis of conventional production lines.
Description
Technical field
The invention belongs to functional fibre field, it is related to a kind of preparation method of shitosan/bio-vitric composite fibre.
Background technology
The chitin that shitosan is widely present by nature obtains through deacetylated, is shaped by wet spinning and shitosan is obtained
Fiber.Bio-vitric is by SiO2、Na2O, CaO and P2O5Silicate glass etc. basis composition.Chitin fiber and life
Thing glass is used as Wound dressing, plays the effect promoting wound repair.But bio-vitric dressing is existed with powder state,
Using trouble.For avoiding bio-vitric powder on wound for the covering to come off, need gauze, Non-woven fabrics material covering protection.
Prepare shitosan/bio-vitric composite fibre and can solve bio-vitric powder using not in conjunction with both advantages
Convenient problem.Yet there are no the report of shitosan/bio-vitric composite fibre.Because shitosan spinning fluid viscosity is high, deposit
Problem in powder dispersed difficulty in spinning solution.Need big shearing force, mixing could be by bio-vitric powder for a long time
It is uniformly dispersed with shitosan spinning solution, but chitosan molecule amount can be caused to decline, the performance of impact fiber.This is functional powder
Adding method prepares the common problem of chitosan composite fiber, in the research of chitosan composite fiber, has scholar by oxygen
Graphite alkene adds shitosan spinning solution and spinning technique is chitosan/oxidized Graphene composite fibre.Graphene oxide plus
Enter to improve to a certain extent the mechanical strength of chitin fiber, but shitosan is up to the incorporation time of graphene oxide
6 hours, long mixed process will necessarily reduce the molecular weight of shitosan, leads to prepared chitosan/oxidized Graphene multiple
The intensity of condensating fiber is less than 160MPa, lacks actually used value (Mechanical and dye adsorption
properties of graphene oxide/chitosan composite fibers prepared by wet
spinning.Carbohydrate polymers,2014,102:755-761.).
Therefore, the preparation process of shitosan/bio-vitric composite fibre need to pay close attention to bio-vitric and spinning solution mixed process,
Bio-vitric powder should be made to mix with spinning solution it is also desirable to avoid mixed process to cause the big of shitosan spinning fluid viscosity
Width reduces.
Content of the invention
The purpose of the present invention is the problem overcoming prior art to exist, and provides a kind of shitosan functional fibre of ensure that
Intensity is capable of bio-vitric powder and the mixed uniformly preparation method of shitosan spinning solution simultaneously.
For reaching above-mentioned purpose, the technical solution used in the present invention is：
The preparation method of shitosan/bio-vitric composite fibre, comprises the steps：
1) shitosan solvent is adopted to dissolve low-molecular weight chitoglycan, prepared carrier solution；
2) bio-vitric powder is mixed with carrier solution, prepared bio-vitric mother liquor；
3) bio-vitric mother liquor injection shitosan spinning solution is obtained shitosan/bio-vitric spinning solution, shitosan/biology
Glass spinning solution is extruded, solidification and drawing-off are obtained shitosan/bio-vitric composite fibre.
As preferred technical scheme：
The preparation method of work(shitosan/bio-vitric composite fibre as above, described shitosan solvent is that acetic acid is molten
Liquid, the concentration of described acetum is 1～3wt%.
The preparation method of shitosan/bio-vitric composite fibre as above, the weight average of described low-molecular weight chitoglycan
Molecular weight is 5 × 105～8 × 105G/mol, deacetylation is more than 90%.
The preparation method of shitosan/bio-vitric composite fibre as above, step 1) in, low in described carrier solution
The concentration of molecular weight chitosan is 3～9wt%.
The preparation method of shitosan/bio-vitric composite fibre as above, described bio-vitric powder be main by
SiO2、Na2O, CaO and P2O5The silicate glass powder of composition, wherein SiO2Content be 40～90wt%, Na2The content of O is
The content of 0～35wt%, CaO is 5～40wt%, P2O5Content be 2～20wt%；The average grain of described bio-vitric powder
Footpath is less than 0.5 μm.
The preparation method of shitosan/bio-vitric composite fibre as above, described mixing refers to by mixing plant
Stirring mixing, described mixing plant is screw extruder or kneader, the stir speed (S.S.) of described stirring mixing is 100～300 turns/
Point, mixing time is 0.5～1 hour；
Step 2) in, in described bio-vitric mother liquor the mass ratio of low-molecular weight chitoglycan and bio-vitric powder be 1～
10:1.
The preparation method of shitosan/bio-vitric composite fibre as above, described online interpolation refers in shitosan
The online adding set of function aqueous mother liquor is installed additional on spinning solution transfer pipeline, controls shitosan spinning solution flow to add function with online
Sexupara flow quantity realizes the metering of addition.
The preparation method of shitosan/bio-vitric composite fibre as above, the concentration of described shitosan spinning solution is 3
～8wt%, in shitosan spinning solution, the weight average molecular weight of shitosan is 8 × 105～15 × 105G/mol, deacetylation is more than
90%.
The preparation method of shitosan/bio-vitric composite fibre as above, described shitosan spinning solution and biological glass
Glass mother liquor mass ratio is 1～20:1.
The preparation method of shitosan/bio-vitric composite fibre as above, described shitosan/bio-vitric spinning solution
Shape through wet spinning or dry-jet wet spinning method.
The preparation method of shitosan/bio-vitric composite fibre as above, described shitosan/bio-vitric is combined fibre
The fiber number of dimension is 1.2～5.0dtex, and dry break strength is more than 1.5cN/dtex, and elongation at break is more than 5%；To large intestine bar
The antibiotic rate of bacterium is more than or equal to 93%, is more than or equal to 95% to the antibiotic rate of staphylococcus aureus.
The preparation method of the shitosan of the present invention/bio-vitric composite fibre, first by bio-vitric powder and low molecule
Amount chitosan solution is obtained bio-vitric mother liquor, then by bio-vitric mother liquor with the online method added injection shitosan spinning
Liquid, and then spinning technique, prepared function chitosan fiber.There is strong hydrogen bonding effect due to intramolecular with intermolecular in shitosan, lead
Cause the viscosity height of chitosan solution, high-viscosity shitosan spinning solution is relatively difficult with the mixing of bio-vitric powder, mixes
The journey time is long, and required shear force is larger, easily causes the fracture of chitosan molecule chain, causes the fall of fibrous mechanical property
Low.Research shows that the molecular weight of shitosan is lower, and the viscosity of chitosan solution is less, easier mixes all with bio-vitric powder
Even, therefore the present invention selects weight average molecular weight is 5 × 105～8 × 105Low-molecular weight chitoglycan, by stirring provided strong
Shearing force, prepares shitosan and the mixed uniformly mother liquor of bio-vitric powder.During mother liquor is injected shitosan spinning solution,
Because low-molecular weight chitoglycan is consistent with the molecular structure unit of the shitosan of spinning solution, both can realize the mixed of molecular level
Close it is ensured that bio-vitric powder is dispersed in shitosan.In the present invention, low-molecular weight chitoglycan serves promotion life
Thing glass powder and the mixed uniformly function served as bridge of shitosan spinning solution, can improve the dispersion efficiency of bio-vitric.
Beneficial effect：
1) present invention utilizes the viscosity of low-molecular weight chitoglycan solution to be less than shitosan spinning solution, is more easy to and biological glass powder
The mixed uniformly advantage of body, selects low-molecular weight chitoglycan as the matrix of bio-vitric mother liquor, is prepared for bio-vitric powder
Be uniformly dispersed, the bio-vitric mother liquor of stable in properties；
2) in the present invention, the construction unit of low-molecular weight chitoglycan molecule and the shitosan of spinning solution are consistent, and both can be real
The dissolving each other of existing molecular level, both process of setting solidification forming in the lump, no extra additive enters coagulating bath, do not increase solvent with
The burden that coagulating bath is reclaimed；
3) in the present invention, bio-vitric mother liquor passes through, in online interpolation injection shitosan spinning solution, can easily and flexibly make
Make shitosan/bio-vitric composite fibre, the bio-vitric powder in mother liquor relies on the shearing force that spinning solution flow process produces
Realize dispersed, it is to avoid the change such as chitosan molecule chain fracture caused by the extra mixed process of increase.
Specific embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate this
Bright rather than limit the scope of the present invention.In addition, it is to be understood that after having read the content of present invention instruction, art technology
Personnel can make various changes or modifications to the present invention, and these equivalent form of values equally fall within the application appended claims and limited
Fixed scope.
Embodiment 1
A kind of preparation method of shitosan/bio-vitric composite fibre, comprises the steps：
1) the acetum dissolving weight average molecular weight that concentration is 1wt% is adopted to be 5 × 105, deacetylation be 90% low
Molecular weight chitosan, the concentration of prepared low-molecular weight chitoglycan is the carrier solution of 3wt%；
2) by average grain diameter be 0.09 μm bio-vitric powder (containing 40wt%SiO2, 35wt%Na2O, 5wt%CaO and
20wt%P2O5Silicate glass powder) pass through screw extruder with carrier solution and stir 0.5 with 100 revs/min of stir speed (S.S.)
Hour mixing, prepared bio-vitric mother liquor, wherein, low-molecular weight chitoglycan is 10 with the mass ratio of bio-vitric powder:1；
3) by bio-vitric mother liquor with the online mode implantation concentration adding as 3wt%, the weight average molecular weight of shitosan is for 8
×105, deacetylation be 90% shitosan spinning solution, wherein shitosan spinning solution and the mass ratio of bio-vitric mother liquor be
20:1, shitosan/bio-vitric spinning solution is extruded, solidify, drawing-off is obtained shitosan/bio-vitric composite fibre.
Test shows, the fiber number of prepared shitosan/bio-vitric composite fibre is 1.2dtex, and dry break strength is
1.81cN/dtex, elongation at break is 6%, and shitosan/bio-vitric composite fibre is 93% to colibacillary antibiotic rate,
Antibiotic rate to staphylococcus aureus is 95%.
Embodiment 2
A kind of preparation method of shitosan/bio-vitric composite fibre, comprises the steps：
1) the acetum dissolving weight average molecular weight that concentration is 1.2wt% is adopted to be 5.1 × 105, deacetylation be 90%
Low-molecular weight chitoglycan, the concentration of prepared low-molecular weight chitoglycan is the carrier solution of 3.2wt%；
2) by average grain diameter be 0.08 μm bio-vitric powder (containing 45wt%SiO2, 32wt%Na2O, 10wt%CaO and
2wt%P2O5Silicate glass powder) pass through screw extruder with carrier solution and stir 0.6 with 110 revs/min of stir speed (S.S.)
Hour mixing, prepared bio-vitric mother liquor, wherein, low-molecular weight chitoglycan is 10 with the mass ratio of bio-vitric powder:1；
3) by bio-vitric mother liquor with the online mode implantation concentration adding as 3.2wt%, the weight average molecular weight of shitosan
For 8.3 × 105, deacetylation be 90% shitosan spinning solution, the wherein quality of shitosan spinning solution and bio-vitric mother liquor
Than for 19:1, shitosan/bio-vitric spinning solution is extruded, solidify, drawing-off is obtained shitosan/bio-vitric composite fibre.
Test shows, the fiber number of prepared shitosan/bio-vitric composite fibre is 1.4dtex, and dry break strength is
1.72cN/dtex, elongation at break is 6.5%, and shitosan/bio-vitric composite fibre to colibacillary antibiotic rate is
93.5%, the antibiotic rate to staphylococcus aureus is 95.2%.
Embodiment 3
A kind of preparation method of shitosan/bio-vitric composite fibre, comprises the steps：
1) the acetum dissolving weight average molecular weight that concentration is 1.5wt% is adopted to be 5.2 × 105, deacetylation be
90.5% low-molecular weight chitoglycan, the concentration of prepared low-molecular weight chitoglycan is the carrier solution of 3.5wt%；
2) by average grain diameter be 0.47 μm bio-vitric powder (containing 50wt%SiO2, 30wt%Na2O, 8wt%CaO and
6wt%P2O5Silicate glass powder) pass through kneader with carrier solution and stirred 0.7 hour with 120 revs/min of stir speed (S.S.)
Mixing, prepared bio-vitric mother liquor, wherein, low-molecular weight chitoglycan is 9 with the mass ratio of bio-vitric powder:1；
3) by bio-vitric mother liquor with the online mode implantation concentration adding as 3.4wt%, the weight average molecular weight of shitosan
For 8.6 × 105, deacetylation be 90.6% shitosan spinning solution, the wherein matter of shitosan spinning solution and bio-vitric mother liquor
Amount ratio is 18:1, shitosan/bio-vitric spinning solution is extruded, solidify, drawing-off is obtained shitosan/bio-vitric composite fibre.
Test shows, the fiber number of prepared shitosan/bio-vitric composite fibre is 1.5dtex, and dry break strength is
1.63cN/dtex, elongation at break is 7%, and shitosan/bio-vitric composite fibre to colibacillary antibiotic rate is
93.8%, the antibiotic rate to staphylococcus aureus is 95.6%.
Embodiment 4
A kind of preparation method of shitosan/bio-vitric composite fibre, comprises the steps：
1) the acetum dissolving weight average molecular weight that concentration is 1.8wt% is adopted to be 5.3 × 105, deacetylation be
90.8% low-molecular weight chitoglycan, the concentration of prepared low-molecular weight chitoglycan is the carrier solution of 3.8wt%；
2) by average grain diameter be 0.46 μm bio-vitric powder (containing 55wt%SiO2, 30wt%Na2O, 5wt%CaO and
8wt%P2O5Silicate glass powder) pass through kneader with carrier solution and stirred 0.8 hour with 130 revs/min of stir speed (S.S.)
Mixing, prepared bio-vitric mother liquor, wherein, low-molecular weight chitoglycan is 8 with the mass ratio of bio-vitric powder:1；
3) by bio-vitric mother liquor with the online mode implantation concentration adding as 3.5wt%, the weight average molecular weight of shitosan
For 8.9 × 105, deacetylation be 90.8% shitosan spinning solution, the wherein matter of shitosan spinning solution and bio-vitric mother liquor
Amount ratio is 16:1, shitosan/bio-vitric spinning solution is extruded, solidify, drawing-off is obtained shitosan/bio-vitric composite fibre.
Test shows, the fiber number of prepared shitosan/bio-vitric composite fibre is 1.6dtex, and dry break strength is
1.54cN/dtex, elongation at break is 7.5%, and shitosan/bio-vitric composite fibre to colibacillary antibiotic rate is
94%, the antibiotic rate to staphylococcus aureus is 96%.
Embodiment 5
A kind of preparation method of shitosan/bio-vitric composite fibre, comprises the steps：
1) the acetum dissolving weight average molecular weight that concentration is 2wt% is adopted to be 5.5 × 105, deacetylation be 91%
Low-molecular weight chitoglycan, the concentration of prepared low-molecular weight chitoglycan is the carrier solution of 4wt%；
2) by average grain diameter be 0.45 μm bio-vitric powder (containing 40wt%SiO2, 10wt%Na2O, 40wt%CaO and
5wt%P2O5Silicate glass powder) pass through screw extruder with carrier solution and stir 0.9 with 140 revs/min of stir speed (S.S.)
Hour mixing, prepared bio-vitric mother liquor, wherein, low-molecular weight chitoglycan is 8 with the mass ratio of bio-vitric powder:1；
3) by bio-vitric mother liquor with the online mode implantation concentration adding as 3.6wt%, the weight average molecular weight of shitosan
For 9 × 105, deacetylation be 91% shitosan spinning solution, the wherein mass ratio of shitosan spinning solution and bio-vitric mother liquor
For 15:1, shitosan/bio-vitric spinning solution is extruded, solidify, drawing-off is obtained shitosan/bio-vitric composite fibre.
Test shows, the fiber number of prepared shitosan/bio-vitric composite fibre is 1.8dtex, and dry break strength is
1.55cN/dtex, elongation at break is 7.8%, and shitosan/bio-vitric composite fibre to colibacillary antibiotic rate is
94.5%, the antibiotic rate to staphylococcus aureus is 96.6%.
Embodiment 6
A kind of preparation method of shitosan/bio-vitric composite fibre, comprises the steps：
1) the acetum dissolving weight average molecular weight that concentration is 2.4wt% is adopted to be 5.6 × 105, deacetylation be
91.1% low-molecular weight chitoglycan, the concentration of prepared low-molecular weight chitoglycan is the carrier solution of 4.3wt%；
2) by average grain diameter be 0.44 μm bio-vitric powder (containing 65wt%SiO2, 26wt%Na2O, 5wt%CaO and
2wt%P2O5Silicate glass powder) pass through kneader with carrier solution and stir 1 hour with 150 revs/min of stir speed (S.S.) to mix
Close, prepared bio-vitric mother liquor, wherein, low-molecular weight chitoglycan is 8 with the mass ratio of bio-vitric powder:1；
3) by bio-vitric mother liquor with the online mode implantation concentration adding as 3.8wt%, the weight average molecular weight of shitosan
For 9.2 × 105, deacetylation be 91.1% shitosan spinning solution, the wherein matter of shitosan spinning solution and bio-vitric mother liquor
Amount ratio is 13:1, shitosan/bio-vitric spinning solution is extruded, solidify, drawing-off is obtained shitosan/bio-vitric composite fibre.
Test shows, the fiber number of prepared shitosan/bio-vitric composite fibre is 1.9dtex, and dry break strength is
1.56cN/dtex, elongation at break is 8%, and shitosan/bio-vitric composite fibre to colibacillary antibiotic rate is
94.9%, the antibiotic rate to staphylococcus aureus is 96.7%.
Embodiment 7
A kind of preparation method of shitosan/bio-vitric composite fibre, comprises the steps：
1) the acetum dissolving weight average molecular weight that concentration is 2.6wt% is adopted to be 5.7 × 105, deacetylation be
91.3% low-molecular weight chitoglycan, the concentration of prepared low-molecular weight chitoglycan is the carrier solution of 4.5wt%；
2) by average grain diameter be 0.43 μm bio-vitric powder (containing 70wt%SiO2, 20wt%Na2O, 5wt%CaO and
2wt%P2O5Silicate glass powder) pass through kneader with carrier solution and stirred 0.5 hour with 160 revs/min of stir speed (S.S.)
Mixing, prepared bio-vitric mother liquor, wherein, low-molecular weight chitoglycan is 7 with the mass ratio of bio-vitric powder:1；
3) by bio-vitric mother liquor with the online mode implantation concentration adding as 4wt%, the weight average molecular weight of shitosan be
9.6×105, deacetylation be that 91.3% shitosan spinning solution obtains, the wherein matter of shitosan spinning solution and bio-vitric mother liquor
Amount ratio is 15:1, shitosan/bio-vitric spinning solution is extruded, solidify, drawing-off is obtained shitosan/bio-vitric composite fibre.
Test shows, the fiber number of prepared shitosan/bio-vitric composite fibre is 2.0dtex, and dry break strength is
1.58cN/dtex, elongation at break is 8.6%, and shitosan/bio-vitric composite fibre to colibacillary antibiotic rate is
95%, the antibiotic rate to staphylococcus aureus is 96.9%.
Embodiment 8
A kind of preparation method of shitosan/bio-vitric composite fibre, comprises the steps：
1) the acetum dissolving weight average molecular weight that concentration is 2.9wt% is adopted to be 5.8 × 105, deacetylation be
91.4% low-molecular weight chitoglycan, the concentration of prepared low-molecular weight chitoglycan is the carrier solution of 4.8wt%；
2) by average grain diameter be 0.42 μm bio-vitric powder (containing 70wt%SiO2, 12wt%Na2O, 6wt%CaO and
10wt%P2O5Silicate glass powder) pass through screw extruder with carrier solution and stir 0.6 with 170 revs/min of stir speed (S.S.)
Hour mixing, prepared bio-vitric mother liquor, wherein, low-molecular weight chitoglycan is 7 with the mass ratio of bio-vitric powder:1；
3) by bio-vitric mother liquor with the online mode implantation concentration adding as 4.2wt%, the weight average molecular weight of shitosan
For 9.8 × 105, deacetylation be 90% shitosan spinning solution, the wherein quality of shitosan spinning solution and bio-vitric mother liquor
Than for 15:1, shitosan/bio-vitric spinning solution is extruded, solidify, drawing-off is obtained shitosan/bio-vitric composite fibre.
Test shows, the fiber number of prepared shitosan/bio-vitric composite fibre is 2.2dtex, and dry break strength is
1.6cN/dtex, elongation at break is 9%, and shitosan/bio-vitric composite fibre is 95.5% to colibacillary antibiotic rate,
Antibiotic rate to staphylococcus aureus is 97%.
Embodiment 9
A kind of preparation method of shitosan/bio-vitric composite fibre, comprises the steps：
1) the acetum dissolving weight average molecular weight that concentration is 3wt% is adopted to be 6 × 105, deacetylation be 91.5%
Low-molecular weight chitoglycan, the concentration of prepared low-molecular weight chitoglycan is the carrier solution of 5wt%；
2) by average grain diameter be 0.41 μm bio-vitric powder (containing 75wt%SiO2, 10wt%Na2O, 5wt%CaO and
10wt%P2O5Silicate glass powder) pass through screw extruder with carrier solution and stir 0.7 with 180 revs/min of stir speed (S.S.)
Hour mixing, prepared bio-vitric mother liquor, wherein, low-molecular weight chitoglycan is 6 with the mass ratio of bio-vitric powder:1；
3) by bio-vitric mother liquor with the online mode implantation concentration adding as 4.4wt%, the weight average molecular weight of shitosan
For 10 × 105, deacetylation be 91.2% shitosan spinning solution, the wherein quality of shitosan spinning solution and bio-vitric mother liquor
Than for 12:1, shitosan/bio-vitric spinning solution is extruded, solidify, drawing-off is obtained shitosan/bio-vitric composite fibre.
Test shows, the fiber number of prepared shitosan/bio-vitric composite fibre is 2.3dtex, and dry break strength is
1.52cN/dtex, elongation at break is 9.8%, and shitosan/bio-vitric composite fibre to colibacillary antibiotic rate is
95.8%, the antibiotic rate to staphylococcus aureus is 97.2%.
Embodiment 10
A kind of preparation method of shitosan/bio-vitric composite fibre, comprises the steps：
1) the acetum dissolving weight average molecular weight that concentration is 1.3wt% is adopted to be 6.2 × 105, deacetylation be
91.6% low-molecular weight chitoglycan, the concentration of prepared low-molecular weight chitoglycan is the carrier solution of 5.4wt%；
2) by average grain diameter be 0.4 μm bio-vitric powder (containing 80wt%SiO2, 2wt%Na2O, 10wt%CaO and
5wt%P2O5Silicate glass powder) pass through screw extruder with carrier solution and stir 0.8 with 190 revs/min of stir speed (S.S.)
Hour mixing, prepared bio-vitric mother liquor, wherein, low-molecular weight chitoglycan is 6 with the mass ratio of bio-vitric powder:1；
3) by bio-vitric mother liquor with the online mode implantation concentration adding as 4.5wt%, the weight average molecular weight of shitosan
For 10.3 × 105, deacetylation be 91.5% shitosan spinning solution, the wherein matter of shitosan spinning solution and bio-vitric mother liquor
Amount ratio is 12:1, shitosan/bio-vitric spinning solution is extruded, solidify, drawing-off is obtained shitosan/bio-vitric composite fibre.
Test shows, the fiber number of prepared shitosan/bio-vitric composite fibre is 2.4dtex, and dry break strength is
1.54cN/dtex, elongation at break is 8%, and shitosan/bio-vitric composite fibre to colibacillary antibiotic rate is
95.9%, the antibiotic rate to staphylococcus aureus is 97.5%.
Embodiment 11
A kind of preparation method of shitosan/bio-vitric composite fibre, comprises the steps：
1) the acetum dissolving weight average molecular weight that concentration is 1.5wt% is adopted to be 6.3 × 105, deacetylation be
91.8% low-molecular weight chitoglycan, the concentration of prepared low-molecular weight chitoglycan is the carrier solution of 5.6wt%；
2) by average grain diameter be 0.38 μm bio-vitric powder (containing 85wt%SiO2, 1wt%Na2O, 10wt%CaO and
2wt%P2O5Silicate glass powder) pass through kneader with carrier solution and stirred 0.9 hour with 200 revs/min of stir speed (S.S.)
Mixing, prepared bio-vitric mother liquor, wherein, low-molecular weight chitoglycan is 6 with the mass ratio of bio-vitric powder:1；
3) by bio-vitric mother liquor with the online mode implantation concentration adding as 4.6wt%, the weight average molecular weight of shitosan
For 10.5 × 105, deacetylation be 92% shitosan spinning solution, the wherein quality of shitosan spinning solution and bio-vitric mother liquor
Than for 11:1, shitosan/bio-vitric spinning solution is extruded, solidify, drawing-off is obtained shitosan/bio-vitric composite fibre.
Test shows, the fiber number of prepared shitosan/bio-vitric composite fibre is 2.5dtex, and dry break strength is
1.55cN/dtex, elongation at break is 10%, and shitosan/bio-vitric composite fibre is 96% to colibacillary antibiotic rate,
Antibiotic rate to staphylococcus aureus is 97.6%.
Embodiment 12
A kind of preparation method of shitosan/bio-vitric composite fibre, comprises the steps：
1) the acetum dissolving weight average molecular weight that concentration is 1.9wt% is adopted to be 6.4 × 105, deacetylation be 92%
Low-molecular weight chitoglycan, the concentration of prepared low-molecular weight chitoglycan is the carrier solution of 5.8wt%；
2) by average grain diameter be 0.37 μm bio-vitric powder (containing 90wt%SiO2, 0wt%Na2O, 5wt%CaO and
5wt%P2O5Silicate glass powder) pass through kneader with carrier solution and stir 1 hour with 210 revs/min of stir speed (S.S.) to mix
Close, prepared bio-vitric mother liquor, wherein, low-molecular weight chitoglycan is 5 with the mass ratio of bio-vitric powder:1；
3) by bio-vitric mother liquor with the online mode implantation concentration adding as 4.8wt%, the weight average molecular weight of shitosan
For 10.8 × 105, deacetylation be 92% shitosan spinning solution, obtain the matter of wherein shitosan spinning solution and bio-vitric mother liquor
Amount ratio is 11:1, shitosan/bio-vitric spinning solution is extruded, solidify, drawing-off is obtained shitosan/bio-vitric composite fibre.
Test shows, the fiber number of prepared shitosan/bio-vitric composite fibre is 2.6dtex, and dry break strength is
1.66cN/dtex, elongation at break is 7.5%, and shitosan/bio-vitric composite fibre to colibacillary antibiotic rate is
96.3%, the antibiotic rate to staphylococcus aureus is 97.7%.
Embodiment 13
A kind of preparation method of shitosan/bio-vitric composite fibre, comprises the steps：
1) the acetum dissolving weight average molecular weight that concentration is 2wt% is adopted to be 6.5 × 105, deacetylation be 92.2%
Low-molecular weight chitoglycan, the concentration of prepared low-molecular weight chitoglycan is the carrier solution of 6wt%；
2) by average grain diameter be 0.36 μm bio-vitric powder (containing 40wt%SiO2, 35wt%Na2O, 20wt%CaO and
2wt%P2O5Silicate glass powder) pass through kneader with carrier solution and stirred 0.5 hour with 220 revs/min of stir speed (S.S.)
Mixing, prepared bio-vitric mother liquor, wherein, low-molecular weight chitoglycan is 6 with the mass ratio of bio-vitric powder:1；
3) by bio-vitric mother liquor with the online mode implantation concentration adding as 5wt%, the weight average molecular weight of shitosan be
11×105, deacetylation be 92.3% shitosan spinning solution, the wherein mass ratio of shitosan spinning solution and bio-vitric mother liquor
For 13:1, shitosan/bio-vitric spinning solution is extruded, solidify, drawing-off is obtained shitosan/bio-vitric composite fibre.
Test shows, the fiber number of prepared shitosan/bio-vitric composite fibre is 2.8dtex, and dry break strength is
1.58cN/dtex, elongation at break is 6.8%, and shitosan/bio-vitric composite fibre to colibacillary antibiotic rate is
96.5%, the antibiotic rate to staphylococcus aureus is 97.9%.
Embodiment 14
A kind of preparation method of shitosan/bio-vitric composite fibre, comprises the steps：
1) the acetum dissolving weight average molecular weight that concentration is 2.2wt% is adopted to be 6.6 × 105, deacetylation be
92.5% low-molecular weight chitoglycan, the concentration of prepared low-molecular weight chitoglycan is the carrier solution of 6.4wt%；
2) by average grain diameter be 0.35 μm bio-vitric powder (containing 42wt%SiO2, 35wt%Na2O, 7wt%CaO and
10wt%P2O5Silicate glass powder) pass through screw extruder with carrier solution and stir 0.6 with 230 revs/min of stir speed (S.S.)
Hour mixing, prepared bio-vitric mother liquor, wherein, low-molecular weight chitoglycan is 5 with the mass ratio of bio-vitric powder:1；
3) by bio-vitric mother liquor with the online mode implantation concentration adding as 5.2wt%, the weight average molecular weight of shitosan
For 11.2 × 105, deacetylation be 92.3% shitosan spinning solution, the wherein matter of shitosan spinning solution and bio-vitric mother liquor
Amount ratio is 10:1, shitosan/bio-vitric spinning solution is extruded, solidify, drawing-off is obtained shitosan/bio-vitric composite fibre.
Test shows, the fiber number of prepared shitosan/bio-vitric composite fibre is 2.9dtex, and dry break strength is
1.6cN/dtex, elongation at break is 6.5%, and shitosan/bio-vitric composite fibre to colibacillary antibiotic rate is
96.6%, the antibiotic rate to staphylococcus aureus is 98%.
Embodiment 15
A kind of preparation method of shitosan/bio-vitric composite fibre, comprises the steps：
1) the acetum dissolving weight average molecular weight that concentration is 2.5wt% is adopted to be 6.7 × 105, deacetylation be
92.6% low-molecular weight chitoglycan, the concentration of prepared low-molecular weight chitoglycan is the carrier solution of 6.8wt%；
2) by average grain diameter be 0.34 μm bio-vitric powder (containing 44wt%SiO2, 30wt%Na2O, 20wt%CaO and
5wt%P2O5Silicate glass powder) pass through screw extruder with carrier solution and stir 0.7 with 240 revs/min of stir speed (S.S.)
Hour mixing, prepared bio-vitric mother liquor, wherein, low-molecular weight chitoglycan is 5 with the mass ratio of bio-vitric powder:1；
3) by bio-vitric mother liquor with the online mode implantation concentration adding as 5.4wt%, the weight average molecular weight of shitosan
For 11.5 × 105, deacetylation be 92.3% shitosan spinning solution, the wherein matter of shitosan spinning solution and bio-vitric mother liquor
Amount ratio is 12:1, shitosan/bio-vitric spinning solution is extruded, solidify, drawing-off is obtained shitosan/bio-vitric composite fibre.
Test shows, the fiber number of prepared shitosan/bio-vitric composite fibre is 3.0dtex, and dry break strength is
1.6cN/dtex, elongation at break is 6%, and shitosan/bio-vitric composite fibre is 96.8% to colibacillary antibiotic rate,
Antibiotic rate to staphylococcus aureus is 98.3%.
Embodiment 16
A kind of preparation method of shitosan/bio-vitric composite fibre, comprises the steps：
1) the acetum dissolving weight average molecular weight that concentration is 2.6wt% is adopted to be 6.8 × 105, deacetylation be
92.8% low-molecular weight chitoglycan, the concentration of prepared low-molecular weight chitoglycan is the carrier solution of 6.9wt%；
2) by average grain diameter be 0.33 μm bio-vitric powder (containing 48wt%SiO2, 25wt%Na2O, 5wt%CaO and
10wt%P2O5Silicate glass powder) pass through screw extruder with carrier solution and stir 0.8 with 250 revs/min of stir speed (S.S.)
Hour mixing, prepared bio-vitric mother liquor, wherein, low-molecular weight chitoglycan is 4 with the mass ratio of bio-vitric powder:1；
3) by bio-vitric mother liquor with the online mode implantation concentration adding as 5.5wt%, the weight average molecular weight of shitosan
For 11.6 × 105, deacetylation be 93% shitosan spinning solution, the wherein quality of shitosan spinning solution and bio-vitric mother liquor
Than for 9:1, shitosan/bio-vitric spinning solution is extruded, solidify, drawing-off is obtained shitosan/bio-vitric composite fibre.
Test shows, the fiber number of prepared shitosan/bio-vitric composite fibre is 3.2dtex, and dry break strength is
1.6cN/dtex, elongation at break is 5.3%, and shitosan/bio-vitric composite fibre is 97% to colibacillary antibiotic rate,
Antibiotic rate to staphylococcus aureus is 98.6%.
Embodiment 17
A kind of preparation method of shitosan/bio-vitric composite fibre, comprises the steps：
1) the acetum dissolving weight average molecular weight that concentration is 3wt% is adopted to be 7 × 105, deacetylation be 93% low
Molecular weight chitosan, the concentration of prepared low-molecular weight chitoglycan is the carrier solution of 7wt%；
2) by average grain diameter be 0.32 μm bio-vitric powder (containing 50wt%SiO2, 25wt%Na2O, 20wt%CaO and
3wt%P2O5Silicate glass powder) pass through screw extruder with carrier solution and stir 0.9 with 260 revs/min of stir speed (S.S.)
Hour mixing, prepared bio-vitric mother liquor, wherein, low-molecular weight chitoglycan is 5 with the mass ratio of bio-vitric powder:1；
3) by bio-vitric mother liquor with the online mode implantation concentration adding as 5.6wt%, the weight average molecular weight of shitosan
For 11.8 × 105, deacetylation be 93% shitosan spinning solution, the wherein quality of shitosan spinning solution and bio-vitric mother liquor
Than for 10:1, shitosan/bio-vitric spinning solution is extruded, solidify, drawing-off is obtained shitosan/bio-vitric composite fibre.
Test shows, the fiber number of prepared shitosan/bio-vitric composite fibre is 3.4dtex, and dry break strength is
1.6cN/dtex, elongation at break is 6%, and shitosan/bio-vitric composite fibre is 97.2% to colibacillary antibiotic rate,
Antibiotic rate to staphylococcus aureus is 98.8%.
Embodiment 18
A kind of preparation method of shitosan/bio-vitric composite fibre, comprises the steps：
1) the acetum dissolving weight average molecular weight that concentration is 2.3wt% is adopted to be 7.2 × 105, deacetylation be
93.5% low-molecular weight chitoglycan, the concentration of prepared low-molecular weight chitoglycan is the carrier solution of 7.2wt%；
2) by average grain diameter be 0.3 μm bio-vitric powder (containing 52wt%SiO2, 20wt%Na2O, 5wt%CaO and
20wt%P2O5Silicate glass powder) pass through kneader with carrier solution and stir 1 hour with 270 revs/min of stir speed (S.S.) to mix
Close, prepared bio-vitric mother liquor, wherein, low-molecular weight chitoglycan is 5 with the mass ratio of bio-vitric powder:1；
3) by bio-vitric mother liquor with the online mode implantation concentration adding as 5.8wt%, the weight average molecular weight of shitosan
For 12 × 105, deacetylation be 93.5% shitosan spinning solution, the wherein quality of shitosan spinning solution and bio-vitric mother liquor
Than for 8:1, shitosan/bio-vitric spinning solution is extruded, solidify, drawing-off is obtained shitosan/bio-vitric composite fibre.
Test shows, the fiber number of prepared shitosan/bio-vitric composite fibre is 3.5dtex, and dry break strength is
1.7cN/dtex, elongation at break is 7%, and shitosan/bio-vitric composite fibre is 97.4% to colibacillary antibiotic rate,
Antibiotic rate to staphylococcus aureus is 99%.
Embodiment 19
A kind of preparation method of shitosan/bio-vitric composite fibre, comprises the steps：
1) the acetum dissolving weight average molecular weight that concentration is 2.6wt% is adopted to be 7.4 × 105, deacetylation be
93.6% low-molecular weight chitoglycan, the concentration of prepared low-molecular weight chitoglycan is the carrier solution of 7.5wt%；
2) by average grain diameter be 0.38 μm bio-vitric powder (containing 54wt%SiO2, 10wt%Na2O, 30wt%CaO and
2wt%P2O5Silicate glass powder) pass through kneader with carrier solution and stirred 0.5 hour with 280 revs/min of stir speed (S.S.)
Mixing, prepared bio-vitric mother liquor, wherein, low-molecular weight chitoglycan is 5 with the mass ratio of bio-vitric powder:1；
3) by bio-vitric mother liquor with the online mode implantation concentration adding as 6wt%, the weight average molecular weight of shitosan be
12.5×105, deacetylation be 93.5% shitosan spinning solution, the wherein quality of shitosan spinning solution and bio-vitric mother liquor
Than for 7:1, shitosan/bio-vitric spinning solution is extruded, solidify, drawing-off is obtained shitosan/bio-vitric composite fibre.
Test shows, the fiber number of prepared shitosan/bio-vitric composite fibre is 3.8dtex, and dry break strength is
1.6cN/dtex, elongation at break is 7%, and shitosan/bio-vitric composite fibre is 97.7% to colibacillary antibiotic rate,
Antibiotic rate to staphylococcus aureus is 99.1%.
Embodiment 20
A kind of preparation method of shitosan/bio-vitric composite fibre, comprises the steps：
1) the acetum dissolving weight average molecular weight that concentration is 2.9wt% is adopted to be 7.5 × 105, deacetylation be
93.8% low-molecular weight chitoglycan, the concentration of prepared low-molecular weight chitoglycan is the carrier solution of 7.8wt%；
2) by average grain diameter be 0.36 μm bio-vitric powder (containing 60wt%SiO2, 8wt%Na2O, 20wt%CaO and
10wt%P2O5Silicate glass powder) pass through screw extruder with carrier solution and stir 0.6 with 290 revs/min of stir speed (S.S.)
Hour mixing, prepared bio-vitric mother liquor, wherein, low-molecular weight chitoglycan is 4 with the mass ratio of bio-vitric powder:1；
3) by bio-vitric mother liquor with the online mode implantation concentration adding as 6.5wt%, the weight average molecular weight of shitosan
For 12.8 × 105, deacetylation be 93.8% shitosan spinning solution, the wherein matter of shitosan spinning solution and bio-vitric mother liquor
Amount compares 7:1, shitosan/bio-vitric spinning solution is extruded, solidify, drawing-off is obtained shitosan/bio-vitric composite fibre.
Test shows, the fiber number of prepared shitosan/bio-vitric composite fibre is 4dtex, and dry break strength is
1.55cN/dtex, elongation at break is 5.6%, and shitosan/bio-vitric composite fibre to colibacillary antibiotic rate is
97.8%, the antibiotic rate to staphylococcus aureus is 99.2%.
Embodiment 21
A kind of preparation method of shitosan/bio-vitric composite fibre, comprises the steps：
1) the acetum dissolving weight average molecular weight that concentration is 3wt% is adopted to be 7.6 × 105, deacetylation be 94%
Low-molecular weight chitoglycan, the concentration of prepared low-molecular weight chitoglycan is the carrier solution of 8wt%；
2) by average grain diameter be 0.35 μm bio-vitric powder (containing 68wt%SiO2, 5wt%Na2O, 20wt%CaO and
5wt%P2O5Silicate glass powder) pass through screw extruder with carrier solution and stir 0.7 with 300 revs/min of stir speed (S.S.)
Hour mixing, prepared bio-vitric mother liquor, wherein, low-molecular weight chitoglycan is 4 with the mass ratio of bio-vitric powder:1；
3) by bio-vitric mother liquor with the online mode implantation concentration adding as 6.8wt%, the weight average molecular weight of shitosan
For 13 × 105, deacetylation be 94% shitosan spinning solution, the wherein mass ratio of shitosan spinning solution and bio-vitric mother liquor
For 6:1, shitosan/bio-vitric spinning solution is extruded, solidify, drawing-off is obtained shitosan/bio-vitric composite fibre.
Test shows, the fiber number of prepared shitosan/bio-vitric composite fibre is 4.2dtex, and dry break strength is
1.53cN/dtex, elongation at break is 5.9%, and shitosan/bio-vitric composite fibre to colibacillary antibiotic rate is
98%, the antibiotic rate to staphylococcus aureus is 99.3%.
Embodiment 22
A kind of preparation method of shitosan/bio-vitric composite fibre, comprises the steps：
1) the acetum dissolving weight average molecular weight that concentration is 1.8wt% is adopted to be 7.8 × 105, deacetylation be
94.2% low-molecular weight chitoglycan, the concentration of prepared low-molecular weight chitoglycan is the carrier solution of 8.3wt%；
2) by average grain diameter be 0.32 μm bio-vitric powder (containing 74wt%SiO2, 2wt%Na2O, 12wt%CaO and
10wt%P2O5Silicate glass powder) pass through kneader with carrier solution and stirred 0.8 hour with 250 revs/min of stir speed (S.S.)
Mixing, prepared bio-vitric mother liquor, wherein, low-molecular weight chitoglycan is 5 with the mass ratio of bio-vitric powder:1；
3) by bio-vitric mother liquor with the online mode implantation concentration adding as 7wt%, the weight average molecular weight of shitosan be
13.5×105, deacetylation be 94% shitosan spinning solution, the wherein mass ratio of shitosan spinning solution and bio-vitric mother liquor
For 8:1, shitosan/bio-vitric spinning solution is extruded, solidify, drawing-off is obtained shitosan/bio-vitric composite fibre.
Test shows, the fiber number of prepared shitosan/bio-vitric composite fibre is 4.5dtex, and dry break strength is
1.9cN/dtex, elongation at break is 8%, and shitosan/bio-vitric composite fibre is 98.5% to colibacillary antibiotic rate,
Antibiotic rate to staphylococcus aureus is 99.5%.
Embodiment 23
A kind of preparation method of shitosan/bio-vitric composite fibre, comprises the steps：
1) the acetum dissolving weight average molecular weight that concentration is 2.5wt% is adopted to be 7.9 × 105, deacetylation be
94.5% low-molecular weight chitoglycan, the concentration of prepared low-molecular weight chitoglycan is the carrier solution of 8.6wt%；
2) by average grain diameter be 0.3 μm bio-vitric powder (containing 80wt%SiO2, 5wt%Na2O, 10wt%CaO and
2wt%P2O5Silicate glass powder) pass through screw extruder with carrier solution and stir 0.9 with 260 revs/min of stir speed (S.S.)
Hour mixing, prepared bio-vitric mother liquor, wherein, low-molecular weight chitoglycan is 3 with the mass ratio of bio-vitric powder:1；
3) by bio-vitric mother liquor with the online mode implantation concentration adding as 7.5wt%, the weight average molecular weight of shitosan
For 14 × 105, deacetylation be 94.8% shitosan spinning solution, the wherein quality of shitosan spinning solution and bio-vitric mother liquor
Than for 5:1, shitosan/bio-vitric spinning solution is extruded, solidify, drawing-off is obtained shitosan/bio-vitric composite fibre.
Test shows, the fiber number of prepared shitosan/bio-vitric composite fibre is 4.8dtex, and dry break strength is
1.9cN/dtex, elongation at break is 9%, and shitosan/bio-vitric composite fibre is 99% to colibacillary antibiotic rate, right
The antibiotic rate of staphylococcus aureus is 99.6%.
Embodiment 24
A kind of preparation method of shitosan/bio-vitric composite fibre, comprises the steps：
1) the acetum dissolving weight average molecular weight that concentration is 3wt% is adopted to be 8 × 105, deacetylation be 95% low
Molecular weight chitosan, the concentration of prepared low-molecular weight chitoglycan is the carrier solution of 9wt%；
2) by average grain diameter be 0.36 μm bio-vitric powder (containing 86wt%SiO2, 0wt%Na2O, 10wt%CaO and
2wt%P2O5Silicate glass powder) pass through kneader with carrier solution and stir 1 hour with 300 revs/min of stir speed (S.S.) to mix
Close, prepared bio-vitric mother liquor, wherein, low-molecular weight chitoglycan is 1 with the mass ratio of bio-vitric powder:1；
3) by bio-vitric mother liquor with the online mode implantation concentration adding as 8wt%, the weight average molecular weight of shitosan be
15×105, deacetylation be 96% shitosan spinning solution, wherein shitosan spinning solution and the mass ratio of bio-vitric mother liquor be
1:1, shitosan/bio-vitric spinning solution is extruded, solidify, drawing-off is obtained shitosan/bio-vitric composite fibre.
Test shows, the fiber number of prepared shitosan/bio-vitric composite fibre is 5.0dtex, and dry break strength is
1.9cN/dtex, elongation at break is 8%, and shitosan/bio-vitric composite fibre is 99.2% to colibacillary antibiotic rate,
Antibiotic rate to staphylococcus aureus is 99.9%.
Claims (10)
1. the preparation method of shitosan/bio-vitric composite fibre, is characterized in that comprising the steps：
1) shitosan solvent is adopted to dissolve low-molecular weight chitoglycan, prepared carrier solution；
2) bio-vitric powder is mixed with carrier solution, prepared bio-vitric mother liquor；
3) bio-vitric mother liquor injection shitosan spinning solution is obtained shitosan/bio-vitric spinning solution, shitosan/bio-vitric
Spinning solution is extruded, solidification and drawing-off are obtained shitosan/bio-vitric composite fibre.
2. the preparation method of work(shitosan/bio-vitric composite fibre according to claim 1 is it is characterised in that described
Shitosan solvent is acetum, and the concentration of described acetum is 1～3wt%.
3. the preparation method of shitosan according to claim 1/bio-vitric composite fibre is it is characterised in that described low
The weight average molecular weight of molecular weight chitosan is 5 × 105～8 × 105G/mol, deacetylation is more than 90%.
4. the preparation method of shitosan according to claim 1/bio-vitric composite fibre is it is characterised in that step 1)
In, in described carrier solution, the concentration of low-molecular weight chitoglycan is 3～9wt%.
5. the preparation method of shitosan according to claim 1/bio-vitric composite fibre is it is characterised in that described life
Thing glass powder is main by SiO2、Na2O, CaO and P2O5The silicate glass powder of composition；Described bio-vitric powder flat
All particle diameter is less than 0.5 μm.
6. the preparation method of shitosan according to claim 1/bio-vitric composite fibre is it is characterised in that described mix
Conjunction refers to stir mixing by mixing plant, and described mixing plant is screw extruder or kneader, and what described stirring mixed stirs
Mix speed and be 100～300 revs/min, mixing time is 0.5～1 hour；
Step 2) in, in described bio-vitric mother liquor, low-molecular weight chitoglycan and the mass ratio of bio-vitric powder are 1～10:1.
7. the preparation method of shitosan according to claim 1/bio-vitric composite fibre is it is characterised in that described shell
The concentration of glycan spinning solution is 3～8wt%, and in shitosan spinning solution, the weight average molecular weight of shitosan is 8 × 105～15 × 105g/
Mol, deacetylation is more than 90%.
8. the preparation method of shitosan according to claim 1/bio-vitric composite fibre is it is characterised in that described shell
Glycan spinning solution and bio-vitric mother liquor mass ratio are 1～20:1.
9. the preparation method of shitosan according to claim 1/bio-vitric composite fibre is it is characterised in that described shell
Glycan/bio-vitric spinning solution shapes through wet spinning or dry-jet wet spinning method.
10. the preparation method of shitosan according to claim 1/bio-vitric composite fibre is it is characterised in that described shell
The fiber number of glycan/bio-vitric composite fibre is 1.2～5.0dtex, and dry break strength is more than 1.5cN/dtex, extension at break
Rate is more than 5%；93% is more than or equal to colibacillary antibiotic rate, the antibiotic rate of staphylococcus aureus is more than or equal to
95%.
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