CN112358568A - Adhesive for super absorbent fiber water-blocking aramid yarn and preparation method and use method thereof - Google Patents
Adhesive for super absorbent fiber water-blocking aramid yarn and preparation method and use method thereof Download PDFInfo
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
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- C08F212/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
- C08F212/02—Monomers containing only one unsaturated aliphatic radical
- C08F212/04—Monomers containing only one unsaturated aliphatic radical containing one ring
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- C08F218/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid
- C08F218/02—Esters of monocarboxylic acids
- C08F218/04—Vinyl esters
- C08F218/08—Vinyl acetate
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- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/04—Acids; Metal salts or ammonium salts thereof
- C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
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- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
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- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
- C08F220/32—Esters containing oxygen in addition to the carboxy oxygen containing epoxy radicals
- C08F220/325—Esters containing oxygen in addition to the carboxy oxygen containing epoxy radicals containing glycidyl radical, e.g. glycidyl (meth)acrylate
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- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/34—Esters containing nitrogen, e.g. N,N-dimethylaminoethyl (meth)acrylate
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- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/56—Acrylamide; Methacrylamide
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- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/58—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine
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- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
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- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
- D06M15/267—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof of unsaturated carboxylic esters having amino or quaternary ammonium groups
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- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
- D06M15/273—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof of unsaturated carboxylic esters having epoxy groups
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- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
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- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
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- D06M2101/16—Synthetic fibres, other than mineral fibres
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- D06M2101/34—Polyamides
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Abstract
The invention discloses an adhesive for super absorbent fiber water-blocking aramid yarn and a preparation method and a using method thereof, and belongs to the technical field of preparation processes of water-blocking yarn. The adhesive comprises 7-15 parts of vinyl monomer; 0.1-0.5 part of glutaraldehyde; 0.1-8 parts of a dispersing agent; 0.2-2 parts of an initiator; 0.2-2 parts of a catalyst; 2-12 parts of a co-stabilizer; 0.1-8 parts of an emulsifier; 75-90 parts of deionized water, so that the performance of the product of the adhesive after being used for the super absorbent fiber water-blocking aramid yarn is ensured, the gluing amount of the adhesive used for the super absorbent fiber water-blocking aramid yarn is 15-25%, the water absorption rate is at least 50 (ml/g)/min, and the gluing amount and the water absorption rate are stable and can meet the production requirement.
Description
Technical Field
The invention relates to the technical field of preparation processes of water-blocking yarns, in particular to an adhesive for super absorbent fiber water-blocking aramid yarns and a using method thereof.
Background
In recent years, with the rapid development of the power communication industry, para-aramid fibers are widely applied to the field of optical cables due to the performance advantages of high strength, high modulus, light weight and the like. When the optical cable is laid and operated, when a cable protective sleeve and insulation are damaged or a street is damaged due to mechanical application of force, moisture and water can spread along the longitudinal gap of the cable, so that signal transmission of the communication cable and the optical cable is interrupted, or the power cable forms a water tree and the water tree is punctured, so that a major power failure accident is caused.
In order to solve the problems, the optical cable is usually wrapped by the water-blocking yarns at present, the water-blocking yarns have certain water absorption and good water-blocking and sealing performance, and the water and the optical cable can be well isolated.
The conventional process for preparing the water-blocking yarn comprises the following steps: firstly, the water-absorbing resin is uniformly dispersed in the solution, then the solution containing the water-absorbing resin is coated on a yarn with certain mechanical strength, then the solution is dried to volatilize the solvent, and the water-blocking powder is adsorbed on the yarn to form the water-blocking yarn with the water-blocking function.
In another process, Super Absorbent Fiber (SAF) and filament are selected to be mixed and spun into water-blocking yarn in a proper structural form, and the water-blocking yarn has stronger water absorption capacity. The former process solves the problem that the optical cable is easy to absorb moisture, fall off powder, and is not easy to store in the trial process, but the requirement of optical cable water resistance is met; the latter technique adopts high water absorption fiber, which not only meets the water-blocking requirement of the optical cable, but also solves the problem of powder falling in the using process. However, SAF has poor spinnability, and cannot be carded into a net alone, so that SAF and filaments need to be mixed in a certain ratio and finally formed into yarn through carding, drawing and roving processes. Because of a plurality of processing procedures, the SAF is easy to be damaged, the noil exists, and the water resistance performance of the produced water-resistant yarn is greatly reduced.
The national intellectual property office discloses an invention patent with the application number of CN201811331862.7 and the name of high-expansion-rate water-blocking yarn and a production process thereof in 19/5/2020, and provides a water-blocking yarn which utilizes water-blocking yarn to comprise fibers and fibers, so that an adhesive layer formed on the surface of the water-blocking yarn and a super-absorbent resin layer on the surface of the adhesive layer are provided, the super-absorbent resin layer is formed by drying a mixed solution of post-crosslinking water-absorbent resin solution, polyethylene glycol and deionized water on the adhesive layer, and a high-expansion-rate water-blocking yarn product is obtained.
However, in actual production, with the adhesive in the above scheme, it is desired to obtain a product with stable characteristics of 15-25% of sizing amount and at least 50 (ml/g)/min of water absorption rate, and further research is needed.
Disclosure of Invention
The invention aims to solve the problems that the prior adhesive product for super absorbent fiber water-blocking aramid yarn such as water-blocking yarn has unstable gluing amount, water absorption rate and other characteristics and immature preparation process.
In order to achieve the technical purpose, the following technical scheme is proposed:
an adhesive for super absorbent fiber water-blocking aramid yarn comprises the following components in parts by weight:
7-15 parts of vinyl monomer;
0.1-0.5 part of glutaraldehyde;
0.1-8 parts of a dispersing agent;
0.2-2 parts of an initiator;
0.2-2 parts of a catalyst;
2-12 parts of a co-stabilizer;
0.1-8 parts of an emulsifier;
75-90 parts of deionized water.
Further, the vinyl monomer comprises a polar vinyl monomer and a hydrophobic vinyl monomer, wherein the polar vinyl monomer is selected from at least one of hydroxyalkyl methacrylate, acrylamide, N-hydroxyalkyl acrylamide, acrylic acid, dimethylaminoethyl methacrylate, glycidyl acrylate and glycidyl methacrylate; the hydrophobic vinyl monomer is at least one selected from acrylate or methacrylate monomers, vinyl acetate and styrene.
Further, the catalyst is at least one of sodium sulfite, N-dimethylcyclohexylamine and N-ethylmorpholine.
Further, the initiator is at least one of potassium persulfate, ammonium persulfate, azobisisobutyronitrile and ammonium cerium nitrate.
The co-stabilizer is at least one selected from C14-C22 aliphatic linear or branched chain alkyl and aliphatic alcohol.
Further, the emulsifier is at least one of MOA-9, Tween-20, sodium dodecyl sulfate, cetyl trimethyl ammonium bromide, OP-10 and dodecyl dimethyl hydroxypropyl sulfobeet.
Further, the dispersant is at least one of polyvinyl alcohol, methyl cellulose, hydroxymethyl cellulose, hydroxypropyl cellulose or hydroxypropyl methyl cellulose.
Further, the preparation method of the adhesive for the super absorbent fiber water-blocking aramid yarn comprises the following steps:
a. weighing the components according to the mass part ratio, dissolving a vinyl monomer, glutaraldehyde, an emulsifier and a dispersant in deionized water, stirring at a high speed, and processing for 15-30min under the high-speed shearing condition of 3000-5500 rpm to obtain a mixed dispersion liquid;
b. and (b) adjusting the temperature of the mixed dispersion liquid in the step (a) to 55-95 ℃, then gradually adding a co-stabilizer, carrying out ultrasonic treatment for 5-10min, then adding an initiator, carrying out ultrasonic treatment for 5-10min, then adding a catalyst, stirring for 3-10min, standing, and fully polymerizing to obtain the adhesive.
Further, the use method of the adhesive for the super absorbent fiber water-blocking aramid yarn comprises the following steps:
(1) gradually adding the super absorbent fibers into the adhesive according to the proportion of the super absorbent fibers to the adhesive being 1:1-25, and stirring for 30-45min to disperse the super absorbent fibers into the adhesive to obtain gel;
(2) the prepared aramid fiber is subjected to gel obtained in the step A, redundant solution is removed through a double roller, and then the aramid fiber is dried through a hot channel, the drying temperature is kept at 120-140 ℃, and the time lasts for 30-300s, so that the adhesive solution containing the super-absorbent fiber forms an adhesive layer on the surface of the fiber;
(3) and D, rolling the aramid fiber dried in the step B to obtain the super absorbent fiber water-blocking aramid yarn with the sizing amount of 20-25% and the water absorption rate of at least 52 (ml/g) min.
By adopting the technical scheme, the beneficial technical effects brought are as follows:
firstly, in the invention, by adopting the components in the invention, an adhesive product with the stable characteristic that the gluing amount is 15-25% and the water absorption rate is at least 50 (ml/g)/min can be obtained, and the adhesive product can be used in the preparation process of the super absorbent fiber water-blocking aramid yarn, and makes up the gap in the preparation process of the adhesive which can be used for the super absorbent fiber water-blocking aramid yarn in the prior art.
Secondly, in the invention, the product obtained by the preparation method of the technical scheme has stable performance, high efficiency and easy control of temperature and the like, thus the requirement on equipment is relatively low, the production cost is lower certainly, and the popularization is facilitated.
In the invention, the raw materials are easy to obtain, and the obtained adhesive can be used in the processing technology of most products of the super absorbent fiber water-blocking aramid yarn.
Detailed Description
In the following, the technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
An adhesive for super absorbent fiber water-blocking aramid yarn comprises the following components in parts by weight:
7-15 parts of vinyl monomer;
0.1-0.5 part of glutaraldehyde;
0.1-8 parts of a dispersing agent;
0.2-2 parts of an initiator;
0.2-2 parts of a catalyst;
2-12 parts of a co-stabilizer;
0.1-8 parts of an emulsifier;
75-90 parts of deionized water.
The prepared adhesive is used for preparing super absorbent fiber water-blocking aramid yarns, the gluing amount of the aramid yarns can reach 22%, and the water absorption rate is about 54 (ml/g)/min.
Example 2
This example is based on example 1 and further, the polar vinyl monomer is selected from hydroxyalkyl methacrylates, the hydrophobic vinyl monomer is selected from acrylates, the catalyst is sodium sulfite, the initiator is ammonium persulfate, the co-stabilizer is selected from C14 fatty alcohols, the emulsifier is sodium lauryl sulfate, and the dispersant is polyvinyl alcohol.
Example 3
This example is compared with example 2, except that the polar vinyl monomer is a complex of hydroxyalkyl methacrylate, acrylamide and N-hydroxyalkyl acrylamide, and the mass ratio of the complex of hydroxyalkyl methacrylate, acrylamide and N-hydroxyalkyl acrylamide is 20%: 40%: 40 percent; the hydrophobic vinyl monomer is selected from a compound of acrylic ester and vinyl acetate, and the mass ratio of the hydrophobic vinyl monomer is 50% respectively.
Example 4
This example compares to examples 1-3 with the difference that the polar vinyl monomer is selected from at least one of acrylamide, N-hydroxyalkyl acrylamide, acrylic acid, dimethylaminoethyl methacrylate, glycidyl acrylate, glycidyl methacrylate; the hydrophobic vinyl monomer is at least one selected from methacrylate monomers, vinyl acetate and styrene.
Example 5
This example compares to examples 1-4 with the difference that the catalyst employs at least one of N, N-dimethylcyclohexylamine, N-ethylmorpholine.
Example 6
This example is different from examples 1 to 5 in that the initiator is at least one of potassium persulfate, azobisisobutyronitrile, and cerium ammonium nitrate.
Example 7
This example compares with examples 1-6 with the difference that the co-stabilizer is selected from at least one of a C14-C22 aliphatic linear or branched alkane or a C15-C22 aliphatic alcohol.
Example 8
This example compares to examples 1-7 with the difference that the emulsifier is at least one of MOA-9, Tween-20, cetyltrimethylammonium bromide, OP-10 and dodecyl dimethyl hydroxypropyl sulfobeet.
Example 9
The dispersant is at least one of methylcellulose, hydroxymethyl cellulose, hydroxypropyl cellulose or hydroxypropyl methylcellulose.
Example 10
On the basis of the examples 1 to 9, further, the preparation method of the adhesive for the super absorbent fiber water-blocking aramid yarn in the scheme comprises the following steps:
a. weighing the components according to the mass part ratio, dissolving a vinyl monomer, glutaraldehyde, an emulsifier and a dispersant in deionized water, stirring at a high speed, and treating for 30min under the high-speed shearing condition of 3000rpm to obtain a mixed dispersion liquid;
b. and (b) regulating the temperature of the mixed dispersion liquid in the step (a) to 55 ℃, gradually adding a co-stabilizer, carrying out ultrasonic treatment for 10min, adding an initiator, carrying out ultrasonic treatment for 5-10min, adding a catalyst, stirring for 3min, standing, and fully polymerizing to obtain the adhesive.
Example 11
This example is compared to example 10 with the difference that in step a, the high speed stirring, treatment under high shear conditions of 5500rpm for 15min, gives a mixed dispersion.
Example 12
Compared with the embodiment 10, the difference of the embodiment is that in the step b, the mixed dispersion liquid in the step a is adjusted to 95 ℃, then the co-stabilizer is gradually added, the ultrasonic treatment is carried out for 5min, the initiator is added, the ultrasonic treatment is carried out for 5min, the catalyst is added, the stirring is carried out for 10min, and the standing and the full polymerization are carried out, so as to obtain the adhesive.
In this step, the ultrasonic treatment time is generally 5-10min to achieve the desired effect, and the ultrasonic treatment time is generally properly prolonged according to the previous stirring condition or the mixing condition of the mixed solution, and generally does not exceed 10 min.
In the step, the general temperature condition is controlled between 55 ℃ and 95 ℃, and the performance of the obtained adhesive meets the requirement. The reaction temperature can be appropriately adjusted according to the conditions of the apparatus.
Example 13
On the basis of the examples 1-12, further, the application method of the adhesive for the super absorbent fiber water-blocking aramid yarn comprises the following steps:
(1) gradually adding the super absorbent fibers into the adhesive according to the proportion of the super absorbent fibers to the adhesive being 1:1, and stirring for 30-45min to disperse the super absorbent fibers into the adhesive to obtain gel;
(2) secondly, the prepared aramid fiber is subjected to gel obtained in the step A, redundant solution is removed through a double roller, and then the aramid fiber is dried through a hot channel, the drying temperature is kept at 120 ℃, and the time lasts for 300s, so that the adhesive solution containing the super absorbent fiber forms an adhesive layer on the surface of the fiber;
(3) and D, rolling the aramid fiber dried in the step B to obtain the super absorbent fiber water-blocking aramid yarn with the glue amount of 21% and the water absorption rate of 52 (ml/g) min.
Example 14
On the basis of the examples 1-12, further, the application method of the adhesive for the super absorbent fiber water-blocking aramid yarn comprises the following steps:
(1) gradually adding the super absorbent fibers into the adhesive according to the proportion of the super absorbent fibers to the adhesive being 1:25, and stirring for 30min to disperse the super absorbent fibers into the adhesive to obtain gel;
(2) secondly, the prepared aramid fiber is subjected to gel obtained in the step A, redundant solution is removed through a double roller, and then the aramid fiber is dried through a hot channel, the drying temperature is kept at 120 ℃, and the time lasts for 300s, so that the adhesive solution containing the super absorbent fiber forms an adhesive layer on the surface of the fiber;
(3) and C, rolling the aramid fiber dried in the step B to obtain the super absorbent fiber water-blocking aramid yarn with 24% of sizing amount and 60 (ml/g) min of water absorption rate.
Example 15
This example is compared with examples 14-15 except that in step (1), the superabsorbent fibers were dispersed in the binder by stirring for 45min to obtain a gel.
The sizing amount of the obtained aramid yarn is 24%, and the water absorption rate is 58 (ml/g) min.
Example 16
This example compares to examples 14-15 with the difference that in step (2) the prepared aramid fiber was again subjected to the gel obtained in step a and excess solution was removed by two rollers and then dried by passing through a hot tunnel, the drying temperature being maintained at 140 c for a period of 30s, so that the binder solution containing superabsorbent fibers formed a cohesive layer on the fiber surface.
The obtained super-absorbent fiber water-blocking aramid yarn has the sizing amount of 25% and the water absorption rate of 53 (ml/g) min.
Claims (9)
1. The adhesive for the super absorbent fiber water-blocking aramid yarn is characterized by comprising the following components in parts by mass:
7-15 parts of vinyl monomer;
0.1-0.5 part of glutaraldehyde;
0.1-8 parts of a dispersing agent;
0.2-2 parts of an initiator;
0.2-2 parts of a catalyst;
2-12 parts of a co-stabilizer;
0.1-8 parts of an emulsifier;
75-90 parts of deionized water.
2. An adhesive for superabsorbent fiber water-blocking aramid yarn as claimed in claim 1 wherein: the vinyl monomer comprises a polar vinyl monomer and a hydrophobic vinyl monomer, and the polar vinyl monomer is selected from at least one of hydroxyalkyl methacrylate, acrylamide, N-hydroxyalkyl acrylamide, acrylic acid, dimethylaminoethyl methacrylate, glycidyl acrylate and glycidyl methacrylate; the hydrophobic vinyl monomer is at least one selected from acrylate or methacrylate monomers, vinyl acetate and styrene.
3. An adhesive for superabsorbent fiber water-blocking aramid yarn as claimed in claim 1 wherein: the catalyst is at least one of sodium sulfite, N-dimethylcyclohexylamine and N-ethylmorpholine.
4. An adhesive for superabsorbent fiber water-blocking aramid yarn as claimed in claim 1 wherein: the initiator is at least one of potassium persulfate, ammonium persulfate, azobisisobutyronitrile and ammonium ceric nitrate.
5. An adhesive for superabsorbent fiber water-blocking aramid yarn as claimed in claim 1 wherein: the co-stabilizer is at least one of aliphatic linear chain or branched chain alkyl or aliphatic alcohol of C14-C22.
6. An adhesive for superabsorbent fiber water-blocking aramid yarn as claimed in claim 1 wherein: the emulsifier is at least one of MOA-9, tween-20, sodium dodecyl sulfate, cetyl trimethyl ammonium bromide, OP-10 and dodecyl dimethyl hydroxypropyl sulfobeet.
7. An adhesive for superabsorbent fiber water-blocking aramid yarn as claimed in claim 1 wherein: the dispersing agent is at least one of polyvinyl alcohol, methylcellulose, hydroxymethyl cellulose, hydroxypropyl cellulose or hydroxypropyl methylcellulose.
8. A method of preparing an adhesive for superabsorbent fibre water-blocking aramid yarn according to any of claims 1 to 7, comprising the steps of:
a. weighing the components according to the mass part ratio, dissolving a vinyl monomer, glutaraldehyde, an emulsifier and a dispersant in deionized water, stirring at a high speed, and processing for 15-30min under the high-speed shearing condition of 3000-5500 rpm to obtain a mixed dispersion liquid;
b. and (b) adjusting the temperature of the mixed dispersion liquid in the step (a) to 55-95 ℃, then gradually adding a co-stabilizer, carrying out ultrasonic treatment for 5-10min, then adding an initiator, carrying out ultrasonic treatment for 5-10min, then adding a catalyst, stirring for 3-10min, standing, and fully polymerizing to obtain the adhesive.
9. Use of an adhesive for superabsorbent fibre water-blocking aramid yarn according to claim 8, characterised by the steps of:
(1) gradually adding the super absorbent fibers into the adhesive according to the proportion of the super absorbent fibers to the adhesive being 1:1-25, and stirring for 30-45min to disperse the super absorbent fibers into the adhesive to obtain gel;
(2) the prepared aramid fiber is subjected to gel obtained in the step A, redundant solution is removed through a double roller, and then the aramid fiber is dried through a hot channel, the drying temperature is kept at 120-140 ℃, and the time lasts for 30-300s, so that the adhesive solution containing the super-absorbent fiber forms an adhesive layer on the surface of the fiber;
(3) and D, rolling the aramid fiber dried in the step B to obtain the super absorbent fiber water-blocking aramid yarn with the sizing amount of 20-25% and the water absorption rate of at least 52 (ml/g) min.
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