CN106283270B - A kind of aquogel type alginate fibre and preparation method thereof - Google Patents
A kind of aquogel type alginate fibre and preparation method thereof Download PDFInfo
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Abstract
The present invention relates to a kind of aquogel type alginate fibres and preparation method thereof.Described method includes following steps：Use molecular weight for 300000~500000, the sodium alginate that M/G values are 1.5~2.5 is raw material, respectively with calcium chloride water for the first coagulating bath, the ethanol solution of sodium hydroxide is the second gelation, and absolute ethyl alcohol is washing bath, by controlling spinning technique step and parameter, it is 0.02~0.1 mg/g fibers to obtain calcium ion content, liquid absorption amount to distilled water is 10~20 g/g fibers, and line density is 1.0~1.5 dtex, and fracture strength is the aquogel type alginate fibre of 1.2~2.0 cN/dtex.The fracture strength and flexibility of aquogel type alginate fibre provided by the invention are excellent, can meet the requirement of the fibers Downstream processings such as needle thorn, braiding, cutting, can quickly form complete industrial chain on existing Industry Foundation, meet the consumption demand of people.
Description
Technical field
The present invention relates to a kind of aquogel type alginate fibres and preparation method thereof, belong to textile science technical field.
Background technology
Alginate fibre is polysaccharide to be extracted in natural seaweed as raw material, and water-soluble metal salt solution is coagulating bath, is led to
Cross a kind of novel high-performance fiber that wet spinning production technology obtains.Using medical dressing made of alginate fibre, can inhale
Wound fluid is received, gelinite is formed in wound surface, accelerates surface of a wound hemostasis, obstruct bacterial invasion, promote wound healing；And
And this layer of gelinite can prevent the adhesion between wound and fiber, be very easy to removal, reduce the secondary injury of wound；Separately
Outside, the biocompatibility of alginate fibre is also very excellent, and long-time service will not cause wound location skin sensitivity or allergic reaction
Equal ill symptoms.Currently, seaweed fiber medical dressing is widely used.Minerals abundant in ocean are had accumulated in seaweed, and
Containing ingredients such as carbohydrate, amino acid, fat and various vitamins, can with the metabolism of active cell, have anti-inflammatory,
Antipruritic function, so alginate fibre has the effect of natural curing, moisturizing, beauty to human skin, while to treating skin disease
Also there is specific use, be highly suitable for making the hydrogel facial mask of beauty and skin care.
China Patent Publication No. is CN1986921A, entitled algae fiber gel spinning preparing process, this application
Disclose and sodium alginate be dissolved in the aqueous solution of sodium hydroxide, and a certain amount of hypochlorous acid and salt is added etc. that be configured to spinning molten
Liquid is second solidifying containing lower alcohol, hydrogen chloride and calcium chloride water with the solution containing water, lower alcohol for the first coagulating bath
Gu bath, the method that alginate fibre is prepared using gel spinning technique, but due to added in the program spinning solution hypochlorous acid and
Salt is easy to cause spinning head blocking, and the mechanical property for the fiber prepared is poor.China Patent Publication No. is
CN101033564A, entitled common and functional calcium alginate fiber preparation method and purposes, this application disclose
Adding suitable functional material in sodium alginate aqueous solution is configured to spinning solution, is solidification with calcium chloride water
Bath, the method that calcium alginate fibre is prepared using wet spinning, but the alginic acid fibre prepared by the program is meeting water
In the case of be unable to gelation, limit it in the application as hydrogel facial mask field.China Patent Publication No. is
CN104338173A, the entitled a kind of production method and purposes of quick imbibition gelatinised sea algae bleeding-stopping dressing, this application
Case, which discloses, is first soaked in the textile of calcium alginate fibre or bonded fabric product in the alcohol solution containing univalent metal salt,
Remaining solution is removed after a period of time, completes immersion treatment；The solution that alcohol is mixed with water is immersed later, is taken off after a period of time
Except remaining solution, complete rinsing processing, then through drying, cut, pack, sterilize finished product, but what this method was prepared
The preparation method of quick imbibition gelatinised sea algae bleeding-stopping dressing is complicated, and the preparation process time is longer, and cost is higher, and gel is imitated
Fruit is less desirable.
China Patent Publication No. is CN 103774281A, and publication date is on May 7th, 2014, a kind of entitled health care
The preparation process of alginate fibre spinning, this application discloses sodium alginate is dissolved in the water containing sodium hydroxide, sodium hypochlorite
It in solution, is extruded into coagulating bath by spinning screw, then preliminary molding alginate fibre is subjected to ion exchange, drawing-off obtains sea
The method of algae fiber, but gelation cannot occur for the alginic acid fibre chance water that this method is prepared, it is impossible to be used in make water-setting
Glue surface film.
Currently, the alginate fibre prepared using document public technology, is unable to gelation in distilled water, seaweed fibre is limited
Tie up the application in hydrogel facial mask field.Moreover, using document public technology prepare alginate fibre, even containing sodium from
In the wound fluid of son, gelation time is also longer, needs at least 30 minutes or more time that could complete to absorb sepage
Or purulence blood and be converted to gel, for it is acute bleed profusely or the cleaning of the wound of sepage and nursing for, be still difficult to meet the requirements.
Invention content
In view of the above problems, the purpose of the present invention is to provide a kind of seaweed that can meet water PhastGel is fine
Dimension, mainly by the way that sodium alginate is configured to spinning solution, spinning solution is squeezed out through metering pump from spinneret, by calcium chloride
First coagulating bath obtains as-spun fibre, as-spun fibre using the sodium hydroxide ethanol solution in the second bath, sodium ion with it is nascent
Exchange reaction occurs for the calcium ion in fiber, adjusts the content of calcium ion in fiber, gradually forms aquogel type alginate fibre, so
Afterwards aquogel type alginate fibre is obtained through washing, third time drawing-off, drying and winding in second of drawing-off, washing bath again.It prepares
The aquogel type alginate fibre gone out can be used for making medical sanitary dressing and beauty skin-care face mask, and fracture strength and flexibility are excellent
It is different, simple production process, aquogel type alginate fibre at low cost and preparation method thereof, to achieve the goals above, technology
Solution is：
A kind of aquogel type alginate fibre, the content of calcium ion is 0.02~0.1 mg/g fine in aquogel type alginate fibre
Dimension, line density are 1.0~1.5 dtex, and fracture strength is 1.2~2.0 cN/dtex, and the liquid absorption amount to distilled water is 10~20
G/g fibers meet water and form gelinite.
The preparation method of a kind of preparation method of aquogel type alginate fibre, aquogel type alginate fibre includes following step
Suddenly：
A weighs sodium alginate according to the 5%~10% of distillation water quality, and it is molten to be added to mechanical agitation in distilled water
2~5 h are solved, 12~24 h of 24~36 h of deaeration or vacuumizing and defoaming is then allowed to stand, obtains spinning solution, the seaweed
The molecular weight of sour sodium is that 300000~500000, M/G values are 1.5~2.5.
The molecular structure of sodium alginate is by mannuronic acid（Abbreviation M units）And guluronic acid（Abbreviation G units）Two kinds
Structural unit forms, and the variation of two kinds of uronic acids ratio and order in the molecule can lead to the physicochemical properties of sodium alginate
It is different.Wherein G units can form chelate structure with calcium ion, and with calcium ion any effect does not occur for M units.The present invention selects
M/G values are raw material between 1.5~2.5 sodium alginate, it is ensured that alginate fibre is fast rapid-result in the coagulating bath of calcium chloride water
Shape, while the content of calcium ion is controlled in suitable range, from source to the molecular structure of aquogel type alginate fibre in fiber
It is designed.
B weighs calcium chloride according to the 1%~5% of distillation water quality, and is added to mechanical agitation dissolving 10 in distilled water
~20 min obtain the first coagulating bath.
C weighs sodium hydroxide according to the 5%~20% of absolute ethyl alcohol quality, and is added to machinery in absolute ethyl alcohol and stirs
30~60 min of dissolving is mixed, the second gelation is obtained.
The present invention prepares hydrogel alginate fibre using two-step method, and first step solidification uses calcium chloride water, protects first
The forming of alginate fibre is demonstrate,proved, second step uses the ethanol solution of sodium hydroxide, passes through the calcium ion in sodium ion and shaped fibers
Exchange reaction occurs, adjusts the content of calcium ion in fiber, gradually forms aquogel type alginate fibre.Meanwhile second solidifies
The solvent of bath uses absolute ethyl alcohol, absolute ethyl alcohol that can remove the hydrone contained in as-spun fibre by extraction, make forming
Hydrogel alginate fibre can keep fibre morphology, and ensure it is dry after fiber adhesion, not simultaneously silk.
D filters spinning solution made from step a, then is squeezed out from spinneret after metering pump, enters step made from b
In first coagulating bath, the first setting temperature is 40~60 DEG C, and setting time is 1~2 min, obtains as-spun fibre, the spray
The aperture of filament plate is 0.03~0.05 mm.
By reducing the content of calcium ion in fiber, aquogel type alginate fibre, but the too low meeting of calcium ion content can get
The decline for causing fibrous mechanical property brings difficulty to Downstream processings such as the needle thorn of fiber, braiding, cuttings.The present invention passes through choosing
With the spinneret that aperture is 0.03~0.05 mm, the diameter of shaped fibers is reduced, the abundant solidification of fiber is conducive to, and is passed through
The setting time of the temperature and fiber of coagulating bath is controlled, ensures that fiber can carry out effective drawing-off, shape while abundant solidification
At highly oriented Fiber super-molecular structure, to obtain the aquogel type alginate fibre matrix of high intensity.
The as-spun fibre that step d is obtained is introduced into after first time drawing-off in the second gelation made from step c by e, and first
The drafting multiple of secondary drawing-off is 2~4 times, and the second setting temperature is 40~60 DEG C, and setting time is 1~3 min, then through second
Washing, third time drawing-off, drying and winding in secondary drawing-off, washing bath, obtain aquogel type alginate fibre, and the of the fiber
The drafting multiple of secondary drawing-off is 1.0~1.5 times, and the drafting multiple of third time drawing-off is 1.0~2.0 times, the fiber
Washing bath is absolute ethyl alcohol, and wash time is 3~5 min, and the drying temperature of the fiber is 60~80 DEG C, drying time
For 3~5 min.
Due to containing a large amount of hydrone in the spinning solution of alginate fibre, aquogel type alginate fibre encounters hydrone and sends out
Raw gelation causes feel to harden so the aquogel type alginate fibre after dry is very easy to that the adhesion between fiber occurs,
And influence the following process of fiber.The preparation method of subject hydrogel type alginate fibre, first uses before fiber drying
Absolute ethyl alcohol washs the hydrogel alginate fibre after forming, is removed in fiber while washing and is contained by extraction
Hydrone, and pass through and control drying temperature and drying time, it is therefore prevented that the adhesion of aquogel type alginate fibre is hardened, to ensure
Fiber following process is smoothed out.
By adopting the above-described technical solution, a kind of beneficial skill of aquogel type alginate fibre of the present invention and preparation method thereof
Art effect is：
The preparation method of 1 subject hydrogel type alginate fibre, passes through the structure control of raw material and setting for coagulation bath composition
Meter adjusts the metal ion content in alginate fibre molecular structure, obtains aquogel type alginate fibre.The preparation side of the present invention
Method is simple, and technological process is short, and production cost is relatively low, expands the application field of alginate fibre, realizes alginate fibre in medical treatment
Sanitary dressings and beauty skin-care face mask field it is general.
The preparation method of 2 subject hydrogel type alginate fibres, it is fine to the hydrogel seaweed after forming using absolute ethyl alcohol
Dimension is washed, and removes the hydrone contained in fiber by extraction while washing, and by control drying temperature and
Drying time, it is therefore prevented that the adhesion of aquogel type alginate fibre is hardened, and does not influence the following process of fiber.
The preparation method of 3 subject hydrogel type alginate fibres, metal ion contains in reducing alginate fibre molecular structure
While amount, by the control of the techniques such as spinning head aperture, setting temperature, setting time and drafting multiple, hydrogel is improved
The intensity and flexibility of alginate fibre can be in existing productions to meet the requirement of the fibers Downstream processings such as needle thorn, braiding, cutting
Complete industrial chain is quickly formed on the basis of industry.
Specific implementation mode
The preparation method work of the aquogel type alginate fibre of the present invention is further retouched in detail with reference to specific embodiment
It states：
Embodiment 1
It weighs 100 grams of distilled water successively and 5 gram-molecular weights is sodium alginate that 300000, M/G values are 1.5, while stirring
The sodium alginate weighed is added in distilled water, 2 h of mechanical agitation is then allowed to stand 24 h of deaeration, obtains spinning solution；Successively
5000 grams of distilled water and 50 grams of calcium chloride are weighed, the calcium chloride weighed are added in distilled water while stirring, mechanical agitation is molten
10 min are solved, the first coagulating bath is obtained；5000 grams of absolute ethyl alcohols and 250 grams of sodium hydroxides are weighed successively, will be weighed while stirring
Sodium hydroxide be added in absolute ethyl alcohol, mechanical agitation dissolve 30 min, obtain the second gelation；Spinning solution is filtered,
The spinneret for being again 0.03 mm from aperture after metering pump squeezes out, and into the first coagulating bath, setting temperature is 40 DEG C, solidification
Time is 2 min, obtains as-spun fibre；It is introduced into the second gelation after as-spun fibre is carried out 2 times of first time drawing-offs, solidification temperature
Degree is 40 DEG C, and setting time is 3 min, then is introduced into after 1.5 times of second of drawing-offs during absolute ethyl alcohol is bathed and wash, when washing
Between be 3 min, then carry out 2.0 times of drawing-offs three times, winding after 5 min be dried in 60 DEG C of drying box and receives silk, is obtained
The content of calcium ion is 0.02 mg/g fibers, and line density is 1.0 dtex, and fracture strength is 1.2 cN/dtex, to distilled water
Liquid absorption amount is the aquogel type alginate fibre of 20 g/g fibers.
Embodiment 2
It weighs 100 grams of distilled water successively and 10 gram-molecular weights is sodium alginate that 500000, M/G values are 2.5, while stirring
The sodium alginate weighed is added in distilled water, 5 h of mechanical agitation is then allowed to stand 36 h of deaeration, obtains spinning solution；Successively
5000 grams of distilled water and 250 grams of calcium chloride are weighed, the calcium chloride weighed are added in distilled water while stirring, mechanical agitation is molten
20 min are solved, the first coagulating bath is obtained；5000 grams of absolute ethyl alcohols and 1000 grams of sodium hydroxides are weighed successively, will be weighed while stirring
Sodium hydroxide be added in absolute ethyl alcohol, mechanical agitation dissolve 60 min, obtain the second gelation；Spinning solution is filtered,
The spinneret for being again 0.05 mm from aperture after metering pump squeezes out, and into the first coagulating bath, setting temperature is 60 DEG C, solidification
Time is 1 min, obtains as-spun fibre；As-spun fibre is subjected to 4 times of drawing-offs, is then introduced into the second gelation, setting temperature
It it is 60 DEG C, setting time is 1 min, then is introduced into after 1.0 times of secondary drawing-offs during absolute ethyl alcohol is bathed and wash, wash time 5
Then min carries out 1.0 times of drawing-offs three times, winding receives silk after 3 min are dried in 80 DEG C of drying box, obtains calcium ion
Content be 0.1 mg/g fibers, line density be 1.5 dtex, fracture strength be 2.0 cN/dtex, to the liquid absorption amount of distilled water
For the aquogel type alginate fibre of 10 g/g fibers.
Embodiment 3
It weighs 100 grams of distilled water successively and 8 gram-molecular weights is sodium alginate that 400000, M/G values are 2.0, while stirring
The sodium alginate weighed is added in distilled water, 4 h of mechanical agitation, then 24 h of vacuumizing and defoaming, obtains spinning solution；According to
It is secondary to weigh 5000 grams of distilled water and 150 grams of calcium chloride, the calcium chloride weighed is added in distilled water while stirring, mechanical agitation
18 min are dissolved, the first coagulating bath is obtained；5000 grams of absolute ethyl alcohols and 500 grams of sodium hydroxides are weighed successively, will be claimed while stirring
The sodium hydroxide taken is added in absolute ethyl alcohol, and mechanical agitation dissolves 50 min, obtains the second gelation；By spinning solution mistake
Filter, then the spinneret for being 0.04 mm from aperture after metering pump squeeze out, and into the first coagulating bath, setting temperature is 50 DEG C,
Setting time is 1.5 min, obtains as-spun fibre；As-spun fibre is subjected to 3 times of drawing-offs, is then introduced into the second gelation, is coagulated
Solid temperature degree is 50 DEG C, and setting time is 1.5 min, then is introduced into after 1.2 times of secondary drawing-offs during absolute ethyl alcohol is bathed and wash, and is washed
It is 4 min to wash the time, then carries out 1.8 times of drawing-offs three times, and winding receives silk after 4 min are dried in 70 DEG C of drying box,
The content for obtaining calcium ion is 0.08 mg/g fibers, and line density is 1.3 dtex, and fracture strength is 1.8 cN/dtex, to distillation
The liquid absorption amount of water is the aquogel type alginate fibre of 12 g/g fibers.
Embodiment 4
It weighs 100 grams of distilled water successively and 6 gram-molecular weights is sodium alginate that 400000, M/G values are 1.8, while stirring
The sodium alginate weighed is added in distilled water, 3 h of mechanical agitation, then 12 h of vacuumizing and defoaming, obtains spinning solution；According to
It is secondary to weigh 5000 grams of distilled water and 100 grams of calcium chloride, the calcium chloride weighed is added in distilled water while stirring, mechanical agitation
15 min are dissolved, the first coagulating bath is obtained；5000 grams of absolute ethyl alcohols and 400 grams of sodium hydroxides are weighed successively, will be claimed while stirring
The sodium hydroxide taken is added in absolute ethyl alcohol, and mechanical agitation dissolves 40 min, obtains the second gelation；By spinning solution mistake
Filter, then the spinneret for being 0.03 mm from aperture after metering pump squeeze out, and into the first coagulating bath, setting temperature is 45 DEG C,
Setting time is 1.5 min, obtains as-spun fibre；As-spun fibre is subjected to 2.5 times of drawing-offs, is then introduced into the second gelation,
Setting temperature is 45 DEG C, and setting time is 2.5 min, then is introduced into after 1.3 times of secondary drawing-offs during absolute ethyl alcohol is bathed and wash,
Wash time is 4 min, then carries out 1.6 times of drawing-offs three times, and receipts are wound after 5 min are dried in 65 DEG C of drying box
Silk, the content for obtaining calcium ion are 0.06 mg/g fibers, and line density is 1.2 dtex, and fracture strength is 1.6 cN/dtex, right
The liquid absorption amount of distilled water is the aquogel type alginate fibre of 16 g/g fibers.
Embodiment 5
It weighs 100 grams of distilled water successively and 7 gram-molecular weights is sodium alginate that 300000, M/G values are 2.0, while stirring
The sodium alginate weighed is added in distilled water, 3 h of mechanical agitation, then 20 h of vacuumizing and defoaming, obtains spinning solution；According to
It is secondary to weigh 5000 grams of distilled water and 150 grams of calcium chloride, the calcium chloride weighed is added in distilled water while stirring, mechanical agitation
15 min are dissolved, the first coagulating bath is obtained；5000 grams of absolute ethyl alcohols and 300 grams of sodium hydroxides are weighed successively, will be claimed while stirring
The sodium hydroxide taken is added in absolute ethyl alcohol, and mechanical agitation dissolves 40 min, obtains the second gelation；By spinning solution mistake
Filter, then the spinneret for being 0.05 mm from aperture after metering pump squeeze out, and into the first coagulating bath, setting temperature is 50 DEG C,
Setting time is 1 min, obtains as-spun fibre；As-spun fibre is subjected to 3 times of drawing-offs, is then introduced into the second gelation, is solidified
Temperature is 50 DEG C, and setting time is 2 min, then is introduced into after 1.2 times of secondary drawing-offs during absolute ethyl alcohol is bathed and wash, when washing
Between be 5 min, then carry out 1.5 times of drawing-offs three times, winding after 4 min be dried in 75 DEG C of drying box and receives silk, is obtained
The content of calcium ion is 0.05 mg/g fibers, and line density is 1.3 dtex, and fracture strength is 1.5 cN/dtex, to distilled water
Liquid absorption amount is the aquogel type alginate fibre of 18 g/g fibers.
Embodiment 6
It weighs 100 grams of distilled water successively and 9 gram-molecular weights is sodium alginate that 450000, M/G values are 2.5, while stirring
The sodium alginate weighed is added in distilled water, 4 h of mechanical agitation is then allowed to stand 20 h of deaeration, obtains spinning solution；Successively
5000 grams of distilled water and 200 grams of calcium chloride are weighed, the calcium chloride weighed are added in distilled water while stirring, mechanical agitation is molten
20 min are solved, the first coagulating bath is obtained；5000 grams of absolute ethyl alcohols and 500 grams of sodium hydroxides are weighed successively, will be weighed while stirring
Sodium hydroxide be added in absolute ethyl alcohol, mechanical agitation dissolve 50 min, obtain the second gelation；Spinning solution is filtered,
The spinneret for being again 0.05 mm from aperture after metering pump squeezes out, and into the first coagulating bath, setting temperature is 50 DEG C, solidification
Time is 1 min, obtains as-spun fibre；As-spun fibre is subjected to 3 times of drawing-offs, is then introduced into the second gelation, setting temperature
It it is 50 DEG C, setting time is 2 min, then is introduced into after 1.1 times of secondary drawing-offs during absolute ethyl alcohol is bathed and wash, wash time 4
Then min carries out 1.3 times of drawing-offs three times, winding receives silk after 4 min are dried in 75 DEG C of drying box, obtains calcium ion
Content be 0.03 mg/g fibers, line density be 1.4 dtex, fracture strength be 1.3 cN/dtex, to the liquid absorption amount of distilled water
For the aquogel type alginate fibre of 19 g/g fibers.
The line density and fracture strength of 1,2,3,4,5,6 gained aquogel type alginate fibre of embodiment, calcium ion in fiber
Content is shown in Table 1 to the liquid absorption amount of distilled water.The test method of properties is as follows：
The measurement of calcium ion content：0.2 g alginate fibre samples are weighed in crucible, are placed in Muffle furnace, through 800 DEG C,
After being cooled to room temperature, 2 mL HNO are added in 3 h of carbonization treatment3, pico- heating makes it dissolve, then fixed in 50 mL volumetric flasks
Hold, the content of calcium ion on alginate fibre is measured using Atomic Absorption Spectrometer.
The measurement of liquid absorption amount：0.1 g alginate fibre samples are weighed, is placed in the distilled water of 50 mL and impregnates 30 min；It will
15 min of fiber centrifugal dehydration after water suction, centrifuge speed are 2000 r/min, are weighed, quality is denoted as M1；Then by fiber
It is placed in 105 DEG C of baking ovens and dries to constant weight, weigh, quality is denoted as M2.The liquid absorption amount N of fiber=（M1—M2）/ M2。
Reference《GB/T 14335-2008 man-made staple fibres tie up line density test method》The line density of fiber is tested,
Reference《GB/T 14337-2008 man-made staple fibres Wellas stretch method for testing performance》Test the fracture strength of fiber.
The properties of 1 aquogel type alginate fibre of table
Claims (8)
1. a kind of aquogel type alginate fibre, it is characterised in that：In aquogel type alginate fibre the content of calcium ion be 0.02~
0.1mg/g fibers, line density are 1.0~1.5dtex, and fracture strength is 1.2~2.0cN/dtex, and the liquid absorption amount to distilled water is
10~20g/g fibers meet water and form gelinite, and the preparation method of the aquogel type alginate fibre includes the following steps：A is pressed
Sodium alginate is weighed according to the 5%~10% of distillation water quality, and is added to mechanical agitation in distilled water and dissolves 2~5h, so
24~36h of standing and defoaming or vacuumizing and defoaming 12~for 24 hours afterwards, obtain spinning solution；
B 1%~5% weighs calcium chloride according to distillation water quality, and be added to mechanical agitation dissolving 10 in distilled water~
20min obtains the first coagulating bath；
C weighs sodium hydroxide according to the 5%~20% of absolute ethyl alcohol quality, and it is molten to be added to mechanical agitation in absolute ethyl alcohol
30~60min is solved, the second gelation is obtained；
D filters spinning solution made from step a, then is squeezed out from spinneret after metering pump, and it is solidifying to enter step made from b first
Gu in bath, the first setting temperature is 40~60 DEG C, and setting time is 1~2min, obtains as-spun fibre；
The as-spun fibre that step d is obtained is introduced into after first time drawing-off in the second gelation made from step c by e, then through second
Washing, third time drawing-off, drying and winding, obtain aquogel type alginate fibre in secondary drawing-off, washing bath.
2. a kind of preparation method of aquogel type alginate fibre as described in claim 1, it is characterised in that：Aquogel type seaweed
The preparation method of fiber includes the following steps：
A weighs sodium alginate according to the 5%~10% of distillation water quality, and is added to mechanical agitation dissolving 2 in distilled water
~5h is then allowed to stand 24~36h of deaeration or vacuumizing and defoaming 12~for 24 hours, obtains spinning solution；
B 1%~5% weighs calcium chloride according to distillation water quality, and be added to mechanical agitation dissolving 10 in distilled water~
20min obtains the first coagulating bath；
C weighs sodium hydroxide according to the 5%~20% of absolute ethyl alcohol quality, and it is molten to be added to mechanical agitation in absolute ethyl alcohol
30~60min is solved, the second gelation is obtained；
D filters spinning solution made from step a, then is squeezed out from spinneret after metering pump, and it is solidifying to enter step made from b first
Gu in bath, the first setting temperature is 40~60 DEG C, and setting time is 1~2min, obtains as-spun fibre；
The as-spun fibre that step d is obtained is introduced into after first time drawing-off in the second gelation made from step c by e, then through second
Washing, third time drawing-off, drying and winding, obtain aquogel type alginate fibre in secondary drawing-off, washing bath.
3. a kind of preparation method of aquogel type alginate fibre as claimed in claim 2, the molecular weight of the sodium alginate
It is 1.5~2.5 for 300000~500000, M/G values.
4. a kind of preparation method of aquogel type alginate fibre as claimed in claim 2, the aperture of the spinneret is
0.03~0.05mm.
5. a kind of preparation method of aquogel type alginate fibre as claimed in claim 2, the second of the as-spun fibre is solidifying
Solid temperature be 40~60 DEG C, setting time be 1~3min.
6. the washing bath of a kind of preparation method of aquogel type alginate fibre as claimed in claim 2, the fiber is nothing
Water-ethanol, wash time are 3~5min.
7. a kind of preparation method of aquogel type alginate fibre as claimed in claim 2, the first time drawing-off of the fiber
Drafting multiple be 2.0~4.0 times, the drafting multiple of second of drawing-off is 1.0~1.5 times, the drafting multiple of third time drawing-off
It is 1.0~2.0 times.
8. a kind of preparation method of aquogel type alginate fibre as claimed in claim 2, the drying temperature of the fiber are
60~80 DEG C, drying time is 3~5min.
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| CN101033564A (en) * | 2007-04-16 | 2007-09-12 | 青岛大学 | Producing method and use for common and functional calcium alginate fiber |
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| US5965260A (en) * | 1991-09-12 | 1999-10-12 | Kansai Research Institute (Kri) | Highly oriented polymer fiber and method for making the same |
| CN100491612C (en) * | 2005-12-21 | 2009-05-27 | 青岛大学 | Algae fiber gel spinning preparing process |
| CN103774281A (en) * | 2012-10-26 | 2014-05-07 | 众地家纺有限公司 | Process for preparing health seacell fiber spinning |
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| Title |
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| The Conversion of Calcium Alginate Fibers into Alginic Acid Fibers and Sodium Alginate Fibers;Yimin Qin等;《J Appl Polym Sci》;20060627;第101卷(第6期);第4216-4221页 * |
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