CN108221081A - High intensity carboxymethyl cellulose/sodium alginate blended fiber and preparation method thereof - Google Patents
High intensity carboxymethyl cellulose/sodium alginate blended fiber and preparation method thereof Download PDFInfo
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- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
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- A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
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- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
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- D01D5/00—Formation of filaments, threads, or the like
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- 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
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- D01F1/00—General methods for the manufacture of artificial filaments or the like
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Abstract
The present invention relates to a kind of high intensity carboxymethyl cellulose/sodium alginate blended fibers, further relate to a kind of preparation method of above-mentioned high intensity carboxymethyl cellulose/sodium alginate blended fiber.The preparation method of the high intensity carboxymethyl cellulose/sodium alginate blended fiber includes the following steps：(1) preparation of co-blended spinning solution；(2) it adds in lauryl sodium sulfate and mixes；(3) deaeration is filtered, is solidified by three coagulating baths；(4) the 4th drawing-off is carried out after water washing bath washing；(5) blended fiber after the washing obtained by step (4) is impregnated 10 15 minutes with mass concentration for 20% 30% glucose solution；(6) dry, winding.The present invention improves alginate fibre intensity and spinnability by improving preparation process, expands the application range of carboxymethyl cellulose/sodium alginate blended fiber.
Description
Technical field
The present invention relates to fibre manufacturing technology fields, and in particular to a kind of high intensity carboxymethyl cellulose/sodium alginate is common
Combined filament further relates to a kind of preparation method of above-mentioned high intensity carboxymethyl cellulose/sodium alginate blended fiber.
Background technology
Carboxymethyl cellulose and sodium alginate are polysaccharide compounds cheap and easy to get, have renewable, source is wide etc.
Advantage.Alginic acid (Alginic acid) be with extracted in natural seaweed formed by monosaccharide aldehydic acid linear polymerization it is more
Sugar, seaweed acid monomers are β-Isosorbide-5-Nitrae-D-MANNOSE aldehydic acid (M) and α-Isosorbide-5-Nitrae-L- guluronic acids (G), and alginic acid leads in the application
It is often utilized in the form of alginate, such as sodium alginate, calcium alginate.Due to the good biological degradability of alginic acid fibre and
Biocompatibility and high-hygroscopicity and gelation have been widely used in the fields such as chemistry, biology, medicine, food, and
It is prepared by the membrane material for being widely used in multiple use with its good film forming.Carboxymethyl cellulose is also known as " carboxymethyl fibre
The plain sodium of dimension ", " sanlose ", " CMC ", are after the hydrogen atom of light base on cellulose glucose ring is replaced by carboxymethyl
A kind of water-soluble cellulose ether, carboxymethyl cellulose is that use scope is most wide in the world today, cellulose kind of dosage maximum
Class.Sodium carboxymethylcellulose has nontoxic, good biocompatibility, degradability, recyclability and hygroscopic characteristic.
However, sodium alginate film quality is crisp, fibre strength is not high, spinnability is poor, and water resistance is very poor, is limited on
System.Relatively low with the most of intensity of fiber that sodium carboxymethylcellulose raw material obtains, obtained product aft-loaded airfoil performance is very undesirable.
The blended fiber of obtained shuttle sodium carboxymethylcellulose pyce domestic at present and sodium alginate, technique is generally by wet spinning technology
Spinning solution from spinning head is squeezed out, into calcium chloride coagulation bath, then blending fibre is obtained after drawing-off, washing, drying, winding
Dimension.It is primarily present following deficiency：Large viscosity between fiber, spinnability is poor, and fibre strength is not high.
Invention content
An object of the present invention is the above-mentioned deficiency for the prior art, provide a kind of high intensity carboxymethyl cellulose/
The preparation method of sodium alginate blended fiber improves alginate fibre intensity and spinnability by improving preparation process.
In order to solve the above-mentioned technical problem, the present invention is using following technical scheme, a kind of high intensity carboxymethyl cellulose/sea
The preparation method of mosanom blended fiber, includes the following steps：
(1) preparation of co-blended spinning solution：By carboxymethyl cellulose and sodium alginate according to 1:The weight ratio of 2-10 is dissolved in
In deionized water, stir 2-3 hours, obtain spinning solution；
(2) spinning solution is put to 0-4 DEG C and stands preservation 6-10 hours, taken out, is put into water-bath concussion pot, 40-50 DEG C,
Concussion processing 20-30 minutes, then add in lauryl sodium sulfate under conditions of 200-300r/min, continue to be placed on water-bath concussion
40-50 DEG C in pot, processing 50-60 minutes is shaken under conditions of 200-300r/min, the additive amount of lauryl sodium sulfate is sea
The 1% of mosanom quality；
(3) mixed solution obtained by step (2) is put into ultrasonic mixer ultrasonic mixing 20-30 minutes, will mixed
Good spinning solution, which is poured into dissolution kettle, is filtered deaeration, is then squeezed out after metering pump from spinneret to first of coagulating bath
In, through first time drawing-off, first of coagulating bath is the calcium chloride water that mass fraction is 1-2%, and first of coagulating bath is coagulated
Solid temperature degree is 50-55 DEG C, and setting time is 2-3 minutes；It is water-soluble with the sodium hydroxide that mass fraction is 10% after first time drawing-off
Liquid washs, and is re-introduced into second coagulating bath, and through second of drawing-off, second coagulating bath is ethyl alcohol, methanol and deionized water
With 3-4:1:2 ratio is prepared, and the setting temperature of second coagulating bath is 20-30 DEG C, and setting time is 1-3 minutes；The
It is washed with deionized and then is introduced into the coagulating bath of third road after secondary drawing-off, third time drawing-off, third road coagulating bath is matter
Amount score is 8-10% calcium chloride waters, and the temperature of third road coagulating bath is 25-30 DEG C, and setting time is 3-4 minutes；
(4) fiber after three coagulating baths is subjected to the 4th drawing-off after water washing bath washing；
(5) glucose solution for being 20%-30% with mass concentration by the blended fiber after the washing obtained by step (4)
It impregnates 10-15 minutes；
(6) by the blended fiber after the immersion obtained by step (5) through drying, rolling step up to the present invention high intensity carboxylic
Methylcellulose/sodium alginate blended fiber.
Pass through high intensity carboxymethyl cellulose/sodium alginate blended fiber hygroscopicity obtained by the preparation method of the present invention
More preferably, it is 22-25g/g fibers, therefore can preferably absorb wound penetrating fluid to the liquid absorption amount of distilled water.The blending of the present invention
The postoperative use of fiber can mitigate oedema and surface of a wound stimulation, the increase of bacterium wrapping property, and wound degree of being adhered smaller, wound more holds
Easily healing is not easy to be adhered wound when removing and causes secondary damage to wound.In addition, the high intensity carboxymethyl obtained by the present invention
Cellulose/sodium alginate blended fiber fracture strength is high, and dimension fracture strength is 2.6~3.1cN/dtex.In addition, pass through the present invention
Preparation process reduce viscosity between fiber, it is poor to solve carboxymethyl cellulose of the prior art/sodium alginate spinnability
The problem of.Wherein, the viscosity of spinning solution can be advantageously reduced by the processing of step (2), increases its spinnability, and can improve
Dispersibility increases carboxymethyl cellulose and the mutual compatibility of sodium alginate.In step (4), fibre can be washed away by water washing bath
Ion in the presence of the coagulating bath of dimension table face.Further blended fiber can be modified by the processing of step (5), can be reduced
Viscosity between fiber solves the problems, such as that carboxymethyl cellulose of the prior art/sodium alginate spinnability is poor.As it can be seen that this hair
Bright not only hygroscopicity significantly increases, but also obtained blended fiber intensity is high, and viscosity is low between fiber, and spinnability is high.
Further, in step (1), in carboxymethyl cellulose/sodium alginate co-blended spinning solution, the quality of sodium alginate
Score is 6%-15%, preferably 8%-10%.
Further, the molecular weight of the sodium alginate is 300000-400000, and M/G values are 2-2.5.
Further, the drafting multiple of the first time drawing-off of the fiber is 1-2 times, and the drafting multiple of second of drawing-off is
1-1.5 times, the drafting multiple of third time drawing-off is 2-3 times, and the drafting multiple of the 4th drawing-off is 1-1.5 times.
Preferably, plants essential oil is further included in the spinning mixed solution of step (1), the dosage of plants essential oil is sodium alginate
The 0.5-1.0% of quality, the plants essential oil can be Rosa Damascana.
Preferably, antiseptic is further included in the spinning mixed solution of step (1), the dosage of antiseptic is sodium alginate quality
0.5-1.0%, the antiseptic can be Flos Lonicerae extractive solution or root bark of tree peony decoction liquor.
Further, the drying means of step (6) is 60 DEG C of drying.
Further, the drying means of step (6) is vacuum freeze drying.Its advantage is conducive to improve alginate fibre
Mechanical performance and three-dimensional porous structure.
The invention also discloses a kind of high intensity carboxymethyl cellulose/sodium alginates by obtained by above-mentioned preparation method
Blended fiber.
The invention also discloses a kind of above-mentioned high intensity carboxymethyl cellulose/sodium alginate blended fibers to make medical defend
The application of raw dressing.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) present invention is improved and right by the proportioning to carboxymethyl cellulose and sodium alginate and mixed method
The preparation processes such as the setting time of the ingredient of coagulating bath, temperature and fiber are improved, not only increase alginate fibre intensity and
Spinnability reduces viscosity between fiber, reduces the difficulty of processing of blended fiber, also improve blended fiber hygroscopicity, expands
The application range of carboxymethyl cellulose/sodium alginate blended fiber.
(2) high intensity carboxymethyl cellulose/sodium alginate blended fiber hygroscopicity obtained by preparation method of the invention
More preferably, therefore wound penetrating fluid can preferably be absorbed.The postoperative use of blended fiber of the present invention can mitigate oedema and the surface of a wound
Stimulation, the increase of bacterium wrapping property, wound degree of being adhered smaller, wound are easier to heal, are not easy to be adhered wound pair when removing
Wound causes secondary damage.
Specific embodiment
Following embodiment facilitates a better understanding of the present invention, but does not limit the present invention.Experiment in following embodiments
Method is conventional method unless otherwise specified.
Embodiment 1
A kind of preparation method of high intensity carboxymethyl cellulose/sodium alginate blended fiber, includes the following steps：
(1) preparation of co-blended spinning solution：By carboxymethyl cellulose and sodium alginate according to 1:2 weight ratio dissolve in from
It in sub- water, stirs 3 hours, obtains spinning solution, in spinning solution, the mass fraction of sodium alginate is 12%；
(2) spinning solution is put to 0 DEG C and stands preservation 8 hours, taken out, is put into water-bath concussion pot, 40 DEG C, 300r/min
Under conditions of concussion processing 30 minutes, then add in lauryl sodium sulfate, continue water-bath shake pot in 40 DEG C, 300r/min
Under conditions of concussion processing 50 minutes, the additive amount of lauryl sodium sulfate is the 1% of sodium alginate quality；
(3) mixed solution obtained by step (2) is put into ultrasonic mixing 25 minutes in ultrasonic mixer, by what is mixed
Spinning solution pours into and deaeration is filtered in dissolution kettle, is then squeezed out after metering pump from spinneret into first of coagulating bath, warp
First time drawing-off, first of coagulating bath are the calcium chloride water that mass fraction is 2%, and the setting temperature of first of coagulating bath is
50 DEG C, setting time is 2 minutes；It is washed, is re-introduced into the sodium hydrate aqueous solution that mass fraction is 10% after first time drawing-off
Into second coagulating bath, through second of drawing-off, second coagulating bath is ethyl alcohol, methanol and deionized water with 3:1:2 ratio
It is prepared, the setting temperature of second coagulating bath is 25 DEG C, and setting time is 2 minutes；Deionized water is used after second of drawing-off
It washs and then is introduced into the coagulating bath of third road, third time drawing-off, third road coagulating bath is that mass fraction is that 8% calcium chloride is water-soluble
Liquid, the temperature of third road coagulating bath is 28 DEG C, and setting time is 4 minutes；
The drafting multiple of the first time drawing-off of the fiber is 1 times, and the drafting multiple of second of drawing-off is 1.5 times, third
The drafting multiple of secondary drawing-off is 2 times；
(4) fiber after three coagulating baths is subjected to the 4th drawing-off after water washing bath washing, the 4th drawing-off
Drafting multiple is 1.5 times；
(5) glucose solution that the blended fiber mass concentration after the washing obtained by step (4) is 24% is impregnated
15 minutes；
(6) by the blended fiber after the immersion obtained by step (5) through vacuum freeze drying, rolling step up to the present invention
High intensity carboxymethyl cellulose/sodium alginate blended fiber.
A kind of high intensity carboxymethyl cellulose/sodium alginate blended fiber by obtained by above-mentioned preparation method.
A kind of above-mentioned high intensity carboxymethyl cellulose/sodium alginate blended fiber is in the application for making medical sanitary dressing.
Embodiment 2
A kind of preparation method of high intensity carboxymethyl cellulose/sodium alginate blended fiber, includes the following steps：
(1) preparation of co-blended spinning solution：By carboxymethyl cellulose and sodium alginate according to 1:4 weight ratio dissolve in from
It in sub- water, stirs 2 hours, obtains spinning solution, in spinning solution, the mass fraction of sodium alginate is 10%；
(2) spinning solution is put to 0 DEG C and stands preservation 6 hours, taken out, is put into water-bath concussion pot, 45 DEG C, 200r/min
Under conditions of concussion processing 20 minutes, then add in lauryl sodium sulfate, continue water-bath shake pot in 45 DEG C, 200r/min
Under conditions of concussion processing 60 minutes, the additive amount of lauryl sodium sulfate is the 1% of sodium alginate quality；
(3) mixed solution obtained by step (2) is put into ultrasonic mixing 20 minutes in ultrasonic mixer, by what is mixed
Spinning solution pours into and deaeration is filtered in dissolution kettle, is then squeezed out after metering pump from spinneret into first of coagulating bath, warp
First time drawing-off, first of coagulating bath are the calcium chloride water that mass fraction is 1%, and the setting temperature of first of coagulating bath is
55 DEG C, setting time is 3 minutes；It is washed, is re-introduced into the sodium hydrate aqueous solution that mass fraction is 10% after first time drawing-off
Into second coagulating bath, through second of drawing-off, second coagulating bath is ethyl alcohol, methanol and deionized water with 4:1:2 ratio
It is prepared, the setting temperature of second coagulating bath is 20 DEG C, and setting time is 2 minutes；Deionized water is used after second of drawing-off
It washs and then is introduced into the coagulating bath of third road, third time drawing-off, third road coagulating bath is that mass fraction is that 9% calcium chloride is water-soluble
Liquid, the temperature of third road coagulating bath is 25 DEG C, and setting time is 4 minutes；
The drafting multiple of the first time drawing-off of the fiber is 1.5 times, and the drafting multiple of second of drawing-off is 1 times, third
The drafting multiple of secondary drawing-off is 3 times；
(4) fiber after three coagulating baths is subjected to the 4th drawing-off after water washing bath washing, the 4th drawing-off
Drafting multiple is 1.2 times；
(5) glucose solution that the blended fiber mass concentration after the washing obtained by step (4) is 30% is impregnated
12 minutes；
(6) by the blended fiber after the immersion obtained by step (5) through vacuum freeze drying, rolling step up to the present invention
High intensity carboxymethyl cellulose/sodium alginate blended fiber.
A kind of high intensity carboxymethyl cellulose/sodium alginate blended fiber by obtained by above-mentioned preparation method.
A kind of above-mentioned high intensity carboxymethyl cellulose/sodium alginate blended fiber is in the application for making medical sanitary dressing.
Embodiment 3
A kind of preparation method of high intensity carboxymethyl cellulose/sodium alginate blended fiber, includes the following steps：
(1) preparation of co-blended spinning solution：By carboxymethyl cellulose and sodium alginate according to 1:5 weight ratio dissolve in from
It in sub- water, stirs 3 hours, obtains in spinning solution spinning solution, the mass fraction of sodium alginate is 10%；
(2) spinning solution is put to 2 DEG C and stands preservation 8 hours, taken out, is put into water-bath concussion pot, 48 DEG C, 300r/min
Under conditions of concussion processing 20 minutes, then add in lauryl sodium sulfate, continue water-bath shake pot in 45 DEG C, 300r/min
Under conditions of concussion processing 60 minutes, the additive amount of lauryl sodium sulfate is the 1% of sodium alginate quality；
(3) mixed solution obtained by step (2) is put into ultrasonic mixing 25 minutes in ultrasonic mixer, by what is mixed
Spinning solution pours into and deaeration is filtered in dissolution kettle, is then squeezed out after metering pump from spinneret into first of coagulating bath, warp
First time drawing-off, first of coagulating bath are the calcium chloride water that mass fraction is 2%, and the setting temperature of first of coagulating bath is
55 DEG C, setting time is 2 minutes；It is washed, is re-introduced into the sodium hydrate aqueous solution that mass fraction is 10% after first time drawing-off
Into second coagulating bath, through second of drawing-off, second coagulating bath is ethyl alcohol, methanol and deionized water with 3:1:2 ratio
It is prepared, the setting temperature of second coagulating bath is 30 DEG C, and setting time is 2 minutes；Deionized water is used after second of drawing-off
It washs and then is introduced into the coagulating bath of third road, third time drawing-off, third road coagulating bath is that mass fraction is that 9% calcium chloride is water-soluble
Liquid, the temperature of third road coagulating bath is 28 DEG C, and setting time is 3 minutes；
The drafting multiple of the first time drawing-off of the fiber is 2 times, and the drafting multiple of second of drawing-off is 1 times, third time
The drafting multiple of drawing-off is 2.5 times；
(4) fiber after three coagulating baths is subjected to the 4th drawing-off after water washing bath washing, the 4th drawing-off
Drafting multiple is 1 times；
(5) glucose solution that the blended fiber mass concentration after the washing obtained by step (4) is 30% is impregnated
12 minutes；
(6) by the blended fiber after the immersion obtained by step (5) through vacuum freeze drying, rolling step up to the present invention
High intensity carboxymethyl cellulose/sodium alginate blended fiber.
A kind of high intensity carboxymethyl cellulose/sodium alginate blended fiber by obtained by above-mentioned preparation method.
A kind of above-mentioned high intensity carboxymethyl cellulose/sodium alginate blended fiber is in the application for making medical sanitary dressing.
Embodiment 4
A kind of preparation method of high intensity carboxymethyl cellulose/sodium alginate blended fiber, includes the following steps：
(1) preparation of co-blended spinning solution：By carboxymethyl cellulose and sodium alginate according to 1:5 weight ratio dissolve in from
In sub- water, stir 2 hours, obtain spinning solution, in spinning solution, the mass fraction 8% of sodium alginate；
(2) spinning solution is put to 4 DEG C and stands preservation 10 hours, taken out, is put into water-bath concussion pot, 45 DEG C, 250r/
Concussion processing 30 minutes, then add in lauryl sodium sulfate under conditions of min, continue 45 DEG C, 250r/ in pot is shaken in water-bath
Concussion processing 50 minutes under conditions of min, the additive amount of lauryl sodium sulfate are the 1% of sodium alginate quality；
(3) mixed solution obtained by step (2) is put into ultrasonic mixing 30 minutes in ultrasonic mixer, by what is mixed
Spinning solution pours into and deaeration is filtered in dissolution kettle, is then squeezed out after metering pump from spinneret into first of coagulating bath, warp
First time drawing-off, first of coagulating bath are the calcium chloride water that mass fraction is 1%, and the setting temperature of first of coagulating bath is
50 DEG C, setting time is 3 minutes；It is washed, is re-introduced into the sodium hydrate aqueous solution that mass fraction is 10% after first time drawing-off
Into second coagulating bath, through second of drawing-off, second coagulating bath is ethyl alcohol, methanol and deionized water with 3:1:2 ratio
It is prepared, the setting temperature of second coagulating bath is 28 DEG C, and setting time is 2 minutes；Deionized water is used after second of drawing-off
It washs and then is introduced into the coagulating bath of third road, third time drawing-off, third road coagulating bath is that mass fraction is 10% calcium chloride water
Solution, the temperature of third road coagulating bath is 30 DEG C, and setting time is 3 minutes；
The drafting multiple of the first time drawing-off of the fiber is 1.5 times, and the drafting multiple of second of drawing-off is 1.2 times, the
The drafting multiple of drawing-off is 2 times three times；
(4) fiber after three coagulating baths is subjected to the 4th drawing-off after water washing bath washing, the 4th drawing-off
Drafting multiple is 1.2 times；
(5) glucose solution that the blended fiber mass concentration after the washing obtained by step (4) is 30% is impregnated
10 minutes；
(6) by the blended fiber after the immersion obtained by step (5) through vacuum freeze drying, rolling step up to the present invention
High intensity carboxymethyl cellulose/sodium alginate blended fiber.
A kind of high intensity carboxymethyl cellulose/sodium alginate blended fiber by obtained by above-mentioned preparation method.
A kind of above-mentioned high intensity carboxymethyl cellulose/sodium alginate blended fiber is in the application for making medical sanitary dressing.
Embodiment 5
A kind of preparation method of high intensity carboxymethyl cellulose/sodium alginate blended fiber, includes the following steps：
(1) preparation of co-blended spinning solution：By carboxymethyl cellulose and sodium alginate according to 1:6 weight ratio dissolve in from
It in sub- water, stirs 3 hours, obtains spinning solution, in spinning solution, the mass fraction of sodium alginate is 9%；
(2) spinning solution is put to 4 DEG C and stands preservation 6 hours, taken out, is put into water-bath concussion pot, 48 DEG C, 200r/min
Under conditions of concussion processing 30 minutes, then add in lauryl sodium sulfate, continue water-bath shake pot in 50 DEG C, 300r/min
Under conditions of concussion processing 50 minutes, the additive amount of lauryl sodium sulfate is the 1% of sodium alginate quality；
(3) mixed solution obtained by step (2) is put into ultrasonic mixing 25 minutes in ultrasonic mixer, by what is mixed
Spinning solution pours into and deaeration is filtered in dissolution kettle, is then squeezed out after metering pump from spinneret into first of coagulating bath, warp
First time drawing-off, first of coagulating bath are the calcium chloride water that mass fraction is 2%, and the setting temperature of first of coagulating bath is
55 DEG C, setting time is 3 minutes；It is washed, is re-introduced into the sodium hydrate aqueous solution that mass fraction is 10% after first time drawing-off
Into second coagulating bath, through second of drawing-off, second coagulating bath is ethyl alcohol, methanol and deionized water with 3:1:2 ratio
It is prepared, the setting temperature of second coagulating bath is 20 DEG C, and setting time is 1 minute；Deionized water is used after second of drawing-off
It washs and then is introduced into the coagulating bath of third road, third time drawing-off, third road coagulating bath is that mass fraction is that 8% calcium chloride is water-soluble
Liquid, the temperature of third road coagulating bath is 30 DEG C, and setting time is 4 minutes；
The drafting multiple of the first time drawing-off of the fiber is 1.5 times, and the drafting multiple of second of drawing-off is 1.5 times, the
The drafting multiple of drawing-off is 2.5 times three times；
(4) fiber after three coagulating baths is subjected to the 4th drawing-off after water washing bath washing, the 4th drawing-off
Drafting multiple is 1.5 times；
(5) glucose solution that the blended fiber mass concentration after the washing obtained by step (4) is 25% is impregnated
15 minutes；
(6) by the blended fiber after the immersion obtained by step (5) through vacuum freeze drying, rolling step up to the present invention
High intensity carboxymethyl cellulose/sodium alginate blended fiber.
A kind of high intensity carboxymethyl cellulose/sodium alginate blended fiber by obtained by above-mentioned preparation method.
A kind of above-mentioned high intensity carboxymethyl cellulose/sodium alginate blended fiber is in the application for making medical sanitary dressing.
Embodiment 6
A kind of preparation method of high intensity carboxymethyl cellulose/sodium alginate blended fiber, includes the following steps：
(1) preparation of co-blended spinning solution：By carboxymethyl cellulose and sodium alginate according to 1:8 weight ratio dissolve in from
It in sub- water, stirs 2 hours, obtains spinning solution, in spinning solution, the mass fraction of sodium alginate is 6%；
(2) spinning solution is put to 3 DEG C and stands preservation 7 hours, taken out, is put into water-bath concussion pot, 50 DEG C, 200r/min
Under conditions of concussion processing 25 minutes, then add in lauryl sodium sulfate, continue water-bath shake pot in 45 DEG C, 240r/min
Under conditions of concussion processing 50 minutes, the additive amount of lauryl sodium sulfate is the 1% of sodium alginate quality；
(3) mixed solution obtained by step (2) is put into ultrasonic mixing 20 minutes in ultrasonic mixer, by what is mixed
Spinning solution pours into and deaeration is filtered in dissolution kettle, is then squeezed out after metering pump from spinneret into first of coagulating bath, warp
First time drawing-off, first of coagulating bath are the calcium chloride water that mass fraction is 2%, and the setting temperature of first of coagulating bath is
50 DEG C, setting time is 2 minutes；It is washed, is re-introduced into the sodium hydrate aqueous solution that mass fraction is 10% after first time drawing-off
Into second coagulating bath, through second of drawing-off, second coagulating bath is ethyl alcohol, methanol and deionized water with 4:1:2 ratio
It is prepared, the setting temperature of second coagulating bath is 30 DEG C, and setting time is 3 minutes；Deionized water is used after second of drawing-off
It washs and then is introduced into the coagulating bath of third road, third time drawing-off, third road coagulating bath is that mass fraction is 10% calcium chloride water
Solution, the temperature of third road coagulating bath is 30 DEG C, and setting time is 3 minutes；
The drafting multiple of the first time drawing-off of the fiber is 2 times, and the drafting multiple of second of drawing-off is 1 times, third time
The drafting multiple of drawing-off is 2 times；
(4) fiber after three coagulating baths is subjected to the 4th drawing-off after water washing bath washing, the 4th drawing-off
Drafting multiple is 1.2 times；
(5) glucose solution that the blended fiber mass concentration after the washing obtained by step (4) is 20% is impregnated
15 minutes；
(6) by the blended fiber after the immersion obtained by step (5) through vacuum freeze drying, rolling step up to the present invention
High intensity carboxymethyl cellulose/sodium alginate blended fiber.
A kind of high intensity carboxymethyl cellulose/sodium alginate blended fiber by obtained by above-mentioned preparation method.
A kind of above-mentioned high intensity carboxymethyl cellulose/sodium alginate blended fiber is in the application for making medical sanitary dressing.
Embodiment 7
A kind of preparation method of high intensity carboxymethyl cellulose/sodium alginate blended fiber, includes the following steps：
(1) preparation of co-blended spinning solution：By carboxymethyl cellulose and sodium alginate according to 1:10 weight ratio is dissolved in
It in ionized water, stirs 3 hours, obtains spinning solution, in spinning solution, the mass fraction of sodium alginate is 15%；
(2) spinning solution is put to 2 DEG C and stands preservation 8 hours, taken out, is put into water-bath concussion pot, 40 DEG C, 300r/min
Under conditions of concussion processing 20 minutes, then add in lauryl sodium sulfate, continue water-bath shake pot in 50 DEG C, 200r/min
Under conditions of concussion processing 60 minutes, the additive amount of lauryl sodium sulfate is the 1% of sodium alginate quality；
(3) mixed solution obtained by step (2) is put into ultrasonic mixing 30 minutes in ultrasonic mixer, by what is mixed
Spinning solution pours into and deaeration is filtered in dissolution kettle, is then squeezed out after metering pump from spinneret into first of coagulating bath, warp
First time drawing-off, first of coagulating bath are the calcium chloride water that mass fraction is 1%, and the setting temperature of first of coagulating bath is
55 DEG C, setting time is 2 minutes；It is washed, is re-introduced into the sodium hydrate aqueous solution that mass fraction is 10% after first time drawing-off
Into second coagulating bath, through second of drawing-off, second coagulating bath is ethyl alcohol, methanol and deionized water with 4:1:2 ratio
It is prepared, the setting temperature of second coagulating bath is 25 DEG C, and setting time is 1 minute；Deionized water is used after second of drawing-off
It washs and then is introduced into the coagulating bath of third road, third time drawing-off, third road coagulating bath is that mass fraction is that 8% calcium chloride is water-soluble
Liquid, the temperature of third road coagulating bath is 30 DEG C, and setting time is 4 minutes；
The drafting multiple of the first time drawing-off of the fiber is 1 times, and the drafting multiple of second of drawing-off is 1.2 times, third
The drafting multiple of secondary drawing-off is 3 times；
(4) fiber after three coagulating baths is subjected to the 4th drawing-off after water washing bath washing, the 4th drawing-off
Drafting multiple is 1 times；
(5) glucose solution that the blended fiber mass concentration after the washing obtained by step (4) is 30% is impregnated
10 minutes；
(6) by after the immersion obtained by step (5) blended fiber drying, rolling step up to the present invention high intensity carboxylic
Methylcellulose/sodium alginate blended fiber.
A kind of high intensity carboxymethyl cellulose/sodium alginate blended fiber by obtained by above-mentioned preparation method.
A kind of above-mentioned high intensity carboxymethyl cellulose/sodium alginate blended fiber is in the application for making medical sanitary dressing.
Performance measurement is carried out to the high intensity carboxymethyl cellulose obtained by embodiment 1-7/sodium alginate blended fiber.
The measure of liquid absorption amount：0.1g blended fiber samples are weighed, is placed in the distilled water of 50mL and impregnates 30min；It will inhale
Fiber centrifugal dehydration 15min after water, centrifuge speed 2000r/min weigh, and quality is denoted as M1；Then fiber is placed in
It dries to constant weight, weighs, quality is denoted as M2 in 105 DEG C of baking ovens.Liquid absorption amount N=(M1-M2)/M2 of fiber.The results show that embodiment
High intensity carboxymethyl cellulose/sodium alginate blended fiber obtained by 1-7 is 22-25g/g fibers to the liquid absorption amount of distilled water.
As it can be seen that the liquid absorption amount of the present invention significantly improves, wound penetrating fluid can be preferably absorbed.
Fracture strength measures：Reference《GB/T 14337-2008 man-made staple fibres Wellas stretch method for testing performance》To reality
It applies high intensity carboxymethyl cellulose/sodium alginate blended fiber obtained by a 1-7 and carries out fracture strength measure, the results show that
The fracture strength of high intensity carboxymethyl cellulose/sodium alginate blended fiber obtained by embodiment 1-7 is 2.6~3.1cN/
dtex。
The above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, without departing from the principle of the present invention, several improvement can also be made, these improvement should be regarded as the guarantor of the present invention
Protect range.
Claims (10)
1. a kind of preparation method of high intensity carboxymethyl cellulose/sodium alginate blended fiber, it is characterised in that：Including following step
Suddenly：
(1) preparation of co-blended spinning solution：By carboxymethyl cellulose and sodium alginate according to 1:The weight ratio of 2-10 dissolve in from
In sub- water, stir 2-3 hours, obtain spinning solution；
(2) spinning solution is put to 0-4 DEG C and stands preservation 6-10 hours, taken out, is put into water-bath concussion pot, 40-50 DEG C, 200-
Concussion processing 20-30 minutes, then add in lauryl sodium sulfate under conditions of 300r/min, continue to be placed in water-bath concussion pot
40-50 DEG C, concussion processing 50-60 minute under conditions of 200-300r/min, the additive amount of lauryl sodium sulfate is alginic acid
The 1% of sodium quality；
(3) mixed solution obtained by step (2) is put into ultrasonic mixer ultrasonic mixing 20-30 minutes, by what is mixed
Spinning solution pours into and deaeration is filtered in dissolution kettle, is then squeezed out after metering pump from spinneret into first of coagulating bath, warp
First time drawing-off, first of coagulating bath are the calcium chloride water that mass fraction is 1-2%, the setting temperature of first of coagulating bath
It it is 50-55 DEG C, setting time is 2-3 minutes；It is washed after first time drawing-off with the sodium hydrate aqueous solution that mass fraction is 10%,
It is re-introduced into second coagulating bath, through second of drawing-off, second coagulating bath is ethyl alcohol, methanol and deionized water with 3-4:1:
2 ratio is prepared, and the setting temperature of second coagulating bath is 20-30 DEG C, and setting time is 1-3 minutes；Second of drawing-off
After be washed with deionized and then be introduced into the coagulating bath of third road, third time drawing-off, third road coagulating bath is that mass fraction is
8-10% calcium chloride waters, the temperature of third road coagulating bath is 25-30 DEG C, and setting time is 3-4 minutes；
(4) fiber after three coagulating baths is subjected to the 4th drawing-off after water washing bath washing；
(5) blended fiber after the washing obtained by step (4) is impregnated with the glucose solution that mass concentration is 20%-30%
10-15 minutes；
(6) by the blended fiber after the immersion obtained by step (5) through drying, rolling step up to the present invention high intensity carboxymethyl
Cellulose/sodium alginate blended fiber.
2. the preparation method of high intensity carboxymethyl cellulose/sodium alginate blended fiber according to claim 1, feature
It is：In step (1), in carboxymethyl cellulose/sodium alginate co-blended spinning solution, the mass fraction of sodium alginate is 6%-
15%.
3. the preparation method of high intensity carboxymethyl cellulose/sodium alginate blended fiber according to claim 1, feature
It is：In step (1), in carboxymethyl cellulose/sodium alginate co-blended spinning solution, the mass fraction of sodium alginate is 8%-
10%.
4. the preparation method of high intensity carboxymethyl cellulose/sodium alginate blended fiber according to claim 1, feature
It is：The molecular weight of the sodium alginate is 300000-400000, and M/G values are 2-2.5.
5. the preparation method of high intensity carboxymethyl cellulose/sodium alginate blended fiber according to claim 1, feature
It is：The drafting multiple of the first time drawing-off of the fiber is 1-2 times, and the drafting multiple of second of drawing-off is 1-1.5 times, third
The drafting multiple of secondary drawing-off is 2-3 times, and the drafting multiple of the 4th drawing-off is 1-1.5 times.
6. the preparation method of high intensity carboxymethyl cellulose/sodium alginate blended fiber according to claim 1, feature
It is：Plants essential oil is further included in the spinning mixed solution of step (1), the dosage of plants essential oil is the 0.5- of sodium alginate quality
1.0%.
7. the preparation method of high intensity carboxymethyl cellulose/sodium alginate blended fiber according to claim 1, feature
It is：Antiseptic is further included in the spinning mixed solution of step (1), the dosage of antiseptic is the 0.5- of sodium alginate quality
1.0%.
8. the preparation method of high intensity carboxymethyl cellulose/sodium alginate blended fiber according to claim 1, feature
It is：The drying means of step (6) is vacuum freeze drying.
9. the preparation of high intensity carboxymethyl cellulose/sodium alginate blended fiber described in a kind of any one of claim 1-8
Blended fiber obtained by method.
10. the blended fiber described in a kind of claim 9 is in the application for making medical sanitary dressing.
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| CN109137502A (en) * | 2018-08-07 | 2019-01-04 | 苏州市天翱特种织绣有限公司 | A kind of preparation method of moisture absorbing and sweat releasing knitting fabric |
| CN109627498A (en) * | 2018-11-27 | 2019-04-16 | 青岛大学 | A kind of sodium alginate-cellulose derivative blended membrane/fiber and preparation method thereof |
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