WO2016028078A1 - 고강도 공중합 아라미드 섬유 및 그의 제조방법 - Google Patents
고강도 공중합 아라미드 섬유 및 그의 제조방법 Download PDFInfo
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- WO2016028078A1 WO2016028078A1 PCT/KR2015/008650 KR2015008650W WO2016028078A1 WO 2016028078 A1 WO2016028078 A1 WO 2016028078A1 KR 2015008650 W KR2015008650 W KR 2015008650W WO 2016028078 A1 WO2016028078 A1 WO 2016028078A1
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- WIPO (PCT)
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- organic solvent
- para
- cyano
- phenylenediamine
- neutralizing agent
- Prior art date
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Classifications
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/78—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products
- D01F6/80—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products from copolyamides
- D01F6/805—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products from copolyamides from aromatic copolyamides
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D1/00—Treatment of filament-forming or like material
- D01D1/02—Preparation of spinning solutions
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
- D10B2331/021—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides aromatic polyamides, e.g. aramides
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/06—Load-responsive characteristics
- D10B2401/061—Load-responsive characteristics elastic
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/06—Load-responsive characteristics
- D10B2401/063—Load-responsive characteristics high strength
Definitions
- the present invention relates to a high-strength copolymerized aramid fiber and a method for producing the same, specifically, consisting of an aramid copolymer containing an aromatic group substituted with a cyano group (-CN), high intrinsic viscosity (IV), polydispersity index (PDI) It is related with the high strength copolymer aramid fiber with low) and high strength and high modulus.
- a cyano group cyano group
- IV high intrinsic viscosity
- PDI polydispersity index
- the present invention by removing the hydrogen chloride (HCl) generated during the polymerization reaction of the aramid copolymer with a neutralizing agent dispersed in an organic solvent and at the same time to be converted into a metal salt does not produce acid crumbs rather than generating an additional salt
- the gelation due to acid crumb is delayed, that is, the polymerization time is increased to increase the intrinsic viscosity (IV) of the polymerized aramid copolymer and to narrow the molecular weight distribution while producing the additional salt for the organic solvent.
- the present invention also relates to a method for producing high strength copolymerized aramid fibers by improving the solubility of aramid polymer and spinning the aramid copolymer having a high intrinsic viscosity (IV) as described above with good radioactivity without using sulfuric acid.
- Aromatic polyamides collectively referred to as aramids, include para-aramids and meta-aramids having a structure in which benzene rings are linearly connected through an amide group (CONH).
- Para-aramid has excellent properties such as high strength, high elasticity and low shrinkage.
- the 5mm thick thread produced therefrom has a strong strength enough to lift 2 tons of automobiles and is used not only for bulletproof but also for various uses in high-tech industries in the aerospace field.
- aramid is carbonized at 500 ° C or higher, and therefore has been in the spotlight in fields requiring high heat resistance.
- the method for producing aramid fibers is well described in the applicant's Korean Patent No. 10-0910537. According to this registered patent, an aromatic diamine is dissolved in a polymerization solvent to prepare a mixed solution, and aromatic dieside is added thereto to prepare an aramid polymer. Subsequently, the aramid fiber is finally finished by dissolving the aramid polymer in a sulfuric acid solvent to prepare a spinning dope and spinning it, followed by solidification, washing, and drying processes.
- the sulfuric acid solvent used to dissolve aramid polymer having high chemical resistance and removed after spinning should be treated properly after use because it causes environmental pollution.
- the cost of treating such waste sulfuric acid is economical of aramid fiber. Lowers.
- terephthaloyl dichloride is added and reacted with an organic solvent in which paraphenylenediamine and cyano-para-phenylenediamine are dissolved to prepare a solid aramid copolymer, followed by polymerization as described above.
- a neutralizing agent such as calcium hydroxide was added to uniformly dissolve the solid aramid copolymer to prepare a spinning dope, and then the spinning dope was spun and solidified to prepare a copolymerized aramid fiber.
- the conventional method can produce aramid fibers without using a sulfuric acid solvent, but the acid debris (HCl) generated by the reaction of paraphenylene and cyano-para-phenylenediamine and terephthaloyl dichloride (HCl) Acid crumb) occurred and gelation occurred quickly.
- the reaction time was shortened, so that the intrinsic viscosity of the copolymer of polymerized aramid was low at 5.0 level, and the polydispersity index (PDI) was 2.2. Therefore, the spinning dope manufactured by the conventional method has a bad liquid crystallinity, and radioactivity falls, and there existed a limit in improving the strength and elastic modulus of the copolymerized aramid fiber manufactured by the conventional method.
- the polydispersity index (PDI) of the aramid copolymer is 2.2 level
- the molecular weight distribution is widened, so that the distribution of small molecular chains (short polymer chains) increases, and the small molecular chains (short length) Polymer chain) is located in the skin layer of the spun copolymerized aramid fiber (end), the end of the polymer chain in the skin layer increases, and the end of the polymer chain is first broken when the copolymerized aramid fiber is stretched (defect) ), The strength and modulus were lowered.
- PDI polydispersity index
- a neutralizing agent is added to the aramid copolymer obtained after the polymerization reaction to uniformly dissolve the solid aramid polymer to prepare a spinning dope, which takes a lot of time of 24 hours or more, thereby lowering the productivity of the spinning dope.
- An object of the present invention consists of an aramid copolymer containing an aromatic group substituted with a cyano group (-CN) has a high intrinsic viscosity (IV), low polydispersity index (PDI), narrow molecular weight distribution, high strength and high elastic modulus It is to provide copolymerized aramid fibers.
- Another object of the present invention is to remove paraphenylenediamine, cyano-para-phenylenediamine and terephthaloyl dichloride from hydrogen chloride (HCl) generated during the polymerization reaction with a neutralizing agent dispersed in an organic solvent.
- HCl hydrogen chloride
- a neutralizing agent dispersed in an organic solvent.
- a spinning dope for copolymerized aramid fibers by sequentially adding and reacting paraphenylenediamine, cyano-para-phenylenediamine and terephthaloyl dichloride to an organic solvent, Before the reaction of paraphenylenediamine and cyano-para-phenylenediamine dissolved in the organic solvent with terephthaloyl dichloride, a neutralizing agent is added and dispersed in the organic solvent.
- a neutralizing agent is added to and dispersed in an organic solvent in which paraphenylenediamine and cyano-para-phenylenediamine are not dissolved, or as another embodiment, paraphenylenediamine and cyano-para-phenylenediamine Before dissolving terephthal chloride in the dissolved organic solvent, a neutralizing agent is first added and dispersed.
- the organic solvent is -10 prior to adding and reacting terephthaloyl dichloride to the organic solvent in which the neutralizing agent is dispersed and in which paraphenylenediamine and cyano-para-phenylenediamine are dissolved. Cool down to -1 °C.
- hydrogen chloride (HCl) generated by the polymerization of paraphenylenediamine and cyano-para-phenylenediamine and terephthaloyl dichloride is immediately removed by a neutralizing agent dispersed in a solvent and converted into a metal salt. Since no crumbs are formed but additional salts are formed, the gelation due to acid crumbs is delayed, that is, the reaction time is long, resulting in high intrinsic viscosity (IV) and low polydispersity index (PDI).
- the aramid copolymer having excellent solubility in organic solvents can be prepared by addition of a salt, and high strength copolymerized aramid fibers can be produced with good radioactivity without using sulfuric acid by using the aramid copolymer.
- the method for producing copolymerized aramid fibers comprises the steps of (i) adding a neutralizing agent to an organic solvent to disperse it; (ii) dissolving paraphenylenediamine and cyano-para-phenylenediamine in a molar ratio of 1: 9 to 9: 1 in an organic solvent in which the neutralizing agent is dispersed; (iii) terephthaloyl dichloride is dissolved in the organic solvent in which the neutralizing agent is dispersed, and in which paraphenylenediamine and cyano-para-phenylenediamine are dissolved, paraphenylenediamine and cyano-para-phenylenediamine Preparing a spinning dope by adding and reacting in the same molar amount (Molar accout); And (iv) spinning the spinning dope to produce copolymerized aramid fibers.
- the present invention is (i) dissolving paraphenylenediamine and cyano-para-phenylenediamine in an organic solvent in a molar ratio of 1: 9-9: 1; (ii) adding and dispersing a neutralizing agent in the organic solvent in which paraphenylenediamine and cyano-para-phenylenediamine are dissolved; (iii) terephthaloyl dichloride is dissolved in the organic solvent in which the neutralizing agent is dispersed, and in which paraphenylenediamine and cyano-para-phenylenediamine are dissolved, paraphenylenediamine and cyano-para-phenylenediamine Preparing a spinning dope by adding and reacting in the same molar amount (Molar accout); And (iv) spinning the spinning dope to produce copolymerized aramid fibers.
- the neutralizing agent may be added to the organic solvent in advance, or paraphenylenediamine and cyano- to the organic solvent.
- a neutralizing agent may be added to the organic solvent.
- neutralizing agent calcium hydroxide, calcium oxide, pure sodium or lithium carbonate is used, and the amount of neutralizing agent is preferably 50 to 120 mol% based on the organic solvent.
- the neutralizer removes hydrogen chloride (HCl) generated during the polymerization of paraphenylenediamine and cyano-para-phenylenediamine and terephthaloyl dichloride, and simultaneously generates additional salts to improve solubility of the polymer in the radiation dope. Play a role.
- HCl hydrogen chloride
- organic solvent examples include N-methyl-2-pyrrolidone (NMP), N, N-dimethylacetamide (DMAc), hexamethylphosphoamide (HMPA), N, N, N ', N'- Tetramethyl urea (TMU), N, N-dimethylformamide (DMF), or mixtures thereof.
- the neutralizer is first dispersed in an organic solvent.
- paraphenylenediamine and cyano-para-phenylenediamine are dissolved in an organic solvent in which the neutralizing agent is dispersed in a molar ratio of 1: 9 to 9: 1.
- an inorganic salt it is preferable to add an inorganic salt to increase the degree of polymerization.
- the inorganic salt is added to increase the degree of polymerization of the aromatic polyamide, and specific examples thereof include halogenated alkali metal salts or halogenated alkaline earth metal salts such as CaCl 2 , LiCl, NaCl, KCl, LiBr and KBr. These inorganic salts may be added alone or in the form of a mixture of two or more thereof.
- the amount of the inorganic salt added is preferably about 2 to 5% by weight based on the weight of the organic solvent.
- the neutralizing agent is dispersed, and terephthaloyl dichloride is dissolved in the organic solvent in which paraphenylenediamine and cyano-para-phenylenediamine are dissolved.
- the paraphenylenediamine and cyano-para-phenylene A spin dope is prepared by adding and reacting in a molar amount (Molar accout) equal to the total amount of diamine, and then the spin dope is spun to prepare a copolymerized aramid fiber.
- the spinning dope is spun through spinneret and then coagulated, washed, stretched and wound to prepare copolymerized aramid fibers.
- the neutralizing agent is dispersed as described above, and before the reaction of terephthaloyl dichloride is added to the organic solvent in which paraphenylenediamine and cyano-para-phenylenediamine are dissolved, the neutralizing agent is dispersed and paraphenyl
- the method may further include a step of cooling the organic solvent in which the rendiamine and cyano-para-phenylenediamine are dissolved to -10 ° C to -1 ° C.
- the cooling process is paraphenylenediamine because it suppresses the heat of polymerization generated by the polymerization reaction of paraphenylenediamine and cyano-para-phenylenediamine and terephthal chloride and the heat of neutralization caused by the neutralization reaction of neutralizing agent and hydrogen chloride (HCl). And the polymerization of cyano-para-phenylenediamine and terephthalchloride is maintained for a longer time, which results in higher intrinsic viscosity (IV) of the polymerized aramid copolymer.
- the present invention removes hydrogen chloride (HCl) generated by the polymerization of paraphenylenediamine and cyano-para-phenylenediamine and terephthaloyl dichloride with a neutralizing agent dispersed in an organic solvent and at the same time converts the acid into a metal salt.
- HCl hydrogen chloride
- a neutralizing agent dispersed in an organic solvent
- the addition of salts improves the solubility of the aramid polymer in the organic solvent, thereby spinning the aramid copolymer having a high intrinsic viscosity (IV) as described above with good radioactivity without using sulfuric acid to produce high strength copolymerized aramid fibers can do.
- the polydispersity index (PDI) of the aramid copolymer is 1.5 to 2.0 level, the molecular weight distribution is narrowed, so that the distribution of polymer chains having a large molecular weight (long polymer chains) increases, and the polymer chains having a large molecular weight (length Long polymer chain) is located in the skin layer of the spun copolymerized aramid fiber (copolymer produced by reducing the end of the polymer chain that acts as a defect that is first cut when the copolymerized aramid fiber is tensile) The strength and elastic modulus of the aramid fibers are greatly improved.
- PDI polydispersity index
- the polydispersity index (PDI) of the aramid copolymer is 1.5 to 2.0 level, the molecular weight distribution is narrowed, so that the distribution of the polymer (chain) having a large molecular chain (length) with a large molecular weight increases, so that the liquid crystals of the radiation dope are dissolved. The castle is better and the radioactivity is improved.
- the intrinsic viscosity (IV) of the aramid copolymer is 6.0 to 8.5 level, the length of the polymer chain is increased, thereby improving the strength and elastic modulus of the copolymerized aramid fiber.
- the spin dope was extruded through a spinneret, and then sequentially passed through an air gap and a coagulating solution to form a multifilament having a linear density of 3,000 denier.
- the spin pack pressure was 2,800 psi and the spinning speed was 600 mpm (meter per minuite).
- the multifilament was washed with water and the washed multifilament was dried and stretched on a drying roller set at a temperature of 150 ° C., and then the stretched multifilament was heat-treated at 250 ° C. and wound to prepare copolymerized aramid fibers.
- the spin dope was extruded through a spinneret, and then sequentially passed through an air gap and a coagulating solution to form a multifilament having a linear density of 3,000 denier.
- the spin pack pressure was 2,800 psi and the spinning speed was 600 mpm (meter per minuite).
- the multifilament was washed with water and the washed multifilament was dried and stretched on a drying roller set at a temperature of 150 ° C., and then the stretched multifilament was heat-treated at 250 ° C. and wound to prepare copolymerized aramid fibers.
- the mixed solution in which the neutralizing agent is dispersed and paraphenylenediamine and cyano-para-phenylenediamine are dissolved is cooled to -5 ° C, and then 25.78 g of terephthaloyl dichloride is added thereto.
- the reaction was carried out to prepare a spinning dope in which the aramid polymer was uniformly dissolved.
- the spin dope was extruded through a spinneret, and then sequentially passed through an air gap and a coagulating solution to form a multifilament having a linear density of 3,000 denier.
- the spin pack pressure was 2,800 psi and the spinning speed was 600 mpm (meter per minuite).
- the multifilament was washed with water, and the washed multifilament was dried and stretched on a drying roller set at a temperature of 150 ° C., and then the stretched multifilament was heat-treated at 250 ° C. and wound to prepare aramid fibers.
- the spin dope was extruded through a spinneret, and then sequentially passed through an air gap and a coagulating solution to form a multifilament having a linear density of 3,000 denier.
- the spin pack pressure was 2,800 psi and the spinning speed was 600 mpm (meter per minuite).
- the multifilament was washed with water, and the washed multifilament was dried and stretched on a drying roller set at a temperature of 150 ° C., and then the stretched multifilament was heat-treated at 250 ° C. and wound to prepare aramid fibers.
- N-methyl-2-pyrrolidone (organic solvent) containing 3% by weight of calcium chloride (inorganic salt) was placed in a reactor under a nitrogen atmosphere, where 5.7 g of paraphenylenediamine and cyano-para-phenylenediamine were added. 10.55 g was dissolved in an organic solvent in the reactor to prepare a mixed solution.
- the aramid copolymer prepared as described above was dissolved in calcium hydroxide (neutralizing agent) for 12 hours to prepare a spinning dope.
- the spin dope was extruded through a spinneret, and then sequentially passed through an air gap and a coagulating solution to form a multifilament having a linear density of 3,000 denier.
- the spin pack pressure was 2,800 psi and the spinning speed was 600 mpm (meter per minuite).
- the multifilament was washed with water and the washed multifilament was dried and stretched on a drying roller set at a temperature of 150 ° C., and then the stretched multifilament was heat-treated at 250 ° C. and wound to prepare copolymerized aramid fibers.
- the molecular weight distribution of the copolymerized aramid fiber was evaluated by the following method.
- the aramid fibers were dissolved in dimethylformamide (DMF) to prepare a sample, and the prepared sample was shown in a water manual injector kit at a temperature of 35 ° C. and a flow rate of 10 ml / min.
- a weight average molecular weight and a number average molecular weight were obtained in a Gel Permeation Chromatography equipped with a Refraction Index detector using a Shodex GPC column, from which Equation 1 was used. The molecular weight distribution is measured.
- Mw is a weight average molecular weight
- Mn is a number average molecular weight
- the strength and modulus of the aramid fibers were measured according to the ASTM D885 test method.
- the tensile speed was 300 m / min, and the super load was fineness x 1/30 g.
- the elastic modulus was obtained from the slope on the S-S curve, and the strength was obtained from the maximum load.
- Intrinsic viscosity (I.V.) is defined by the equation
- C is the concentration of the polymer solution (solution in which 0.5 g of the polymer is dissolved in 100 ml of concentrated sulfuric acid), and the relative viscosity ⁇ rel is the flow time ratio between the polymer solution and the solvent measured by a capillary viscometer at 30 ° C. Unless stated otherwise, intrinsic viscosity values were determined using 95-98% concentrated sulfuric acid solvent.
- High-strength copolymerized aramid fibers according to the present invention can be used as a material for the fiber / resin composite material used in bulletproof material or automobile parts.
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Abstract
Description
구분 | 고유점도(IV) | 다분산지수(PDI) | 강도(g/d) | 탄성율(g/d) |
실시예 1 | 6.2 | 1.95 | 25 | 1,100 |
실시예 2 | 8.3 | 1.57 | 30 | 1,200 |
실시예 3 | 7.8 | 1.62 | 28 | 1,150 |
실시예 4 | 7.0 | 1.80 | 26 | 1,100 |
비교실시예 1 | 5.0 | 2.40 | 22 | 900 |
Claims (15)
- 시아노기(-CN)가 치환된 방향족기를 포함하는 아라미드 공중합체로 이루어져 고유점도가(IV)가 6.0~8.5이고, 다분산지수(PDI)가 1.5~2.0이고, 강도가 23~32g/d인 것을 특징으로 하는 고강도 공중합 아라미드 섬유.
- 제1항에 있어서, 고강도 공중합 아라미드 섬유의 탄성율이 1,100~1,300g/d인 것을 특징으로 하는 고강도 공중합 아라미드 섬유.
- (i) 유기용매에 중화제를 투입하여 분산시키는 공정;(ii) 중화제가 분산된 유기용매에 파라페닐렌디아민과 시아노-파라-페닐렌디아민을 1:9~9:1의 몰비로 용해시키는 공정;(iii) 중화제가 분산되어 있으며, 파라페닐렌디아민과 시아노-파라-페닐렌디아민이 용해되어 있는 상기 유기용매에 테레프탈로일 디클로라이드를 상기 파라페닐렌디아민과 시아노-파라-페닐렌디아민의 총량과 동일한 몰량(Molar accout)으로 첨가, 반응시켜 방사도프를 제조하는 공정; 및(iv) 상기 방사도프를 방사하여 공중합 아라미드 섬유를 제조하는 공정;을 포함하는 것을 특징으로 하는 고강도 공중합 아라미드 섬유의 제조방법.
- 제4항에 있어서, 중화제가 분산되어 있으며, 파라페닐렌디아민과 시아노-파라-페닐렌디아민이 용해되어 있는 상기 유기용매에 테레프탈로일 디클로라이드를 첨가, 반응시키기 전에 상기 유기용매를 -10℃ 내지 -1℃로 냉각시켜 주는 공정을 추가로 더 포함하는 것을 특징으로 하는 고강도 공중합 아라미드 섬유의 제조방법.
- 제4항 또는 제5항에 있어서, 상기 중화제를 유기용매 대비 50~120몰% 첨가, 분산시키는 것을 특징으로 하는 고강도 공중합 아라미드 섬유의 제조방법.
- 제4항 또는 제5항에 있어서, 상기 중화제는 수산화칼슘, 산화칼슘, 수산화나트륨 및 탄산리튬 중에서 선택된 1종인 것을 특징으로 하는 고강도 공중합 아라미드 섬유의 제조방법.
- 제4항 또는 제5항에 있어서, 유기용매는 N-메틸-2-피롤리돈, N,N-디메틸아세트아미드, 헥사메틸포스포아미드, N,N,N'N'-테트라메틸우레아 및 N,N-디메틸포름아미드 중에서 선택된 1종인 것을 특징으로 하는 고강도 공중합 아라미드 섬유의 제조방법.
- 제4항 또는 제5항에 있어서, 방사도프를 방사구금을 통해 방사 후 응고, 수세, 연신 및 권취하는 것을 특징으로 하는 고강도 공중합 아라미드의 제조방법.
- (i) 유기용매에 파라페닐렌디아민과 시아노-파라-페닐렌디아민을 1:9~9:1의 몰비로 용해시키는 공정;(ii) 파라페닐렌디아민과 시아노-파라-페닐렌디아민이 용해되어 있는 상기 유기용매에 중화제를 투입하여 분산시키는 공정;(iii) 중화제가 분산되어 있으며, 파라페닐렌디아민과 시아노-파라-페닐렌디아민이 용해되어 있는 상기 유기용매에 테레프탈로일 디클로라이드를 상기 파라페닐렌디아민과 시아노-파라-페닐렌디아민의 총량과 동일한 몰량(Molar accout)으로 첨가, 반응시켜 방사도프를 제조하는 공정; 및(iv) 상기 방사도프를 방사하여 공중합 아라미드 섬유를 제조하는 공정;을 포함하는 것을 특징으로 하는 고강도 공중합 아라미드 섬유의 제조방법.
- 제10항에 있어서, 중화제가 분산되어 있으며, 파라페닐렌디아민과 시아노-파라-페닐렌디아민이 용해되어 있는 상기 유기용매에 테레프탈로일 디클로라이드를 첨가, 반응시키기 전에 상기 유기용매를 -10℃ 내지 -1℃로 냉각시켜 주는 공정을 추가로 더 포함하는 것을 특징으로 하는 고강도 공중합 아라미드 섬유의 제조방법.
- 제10항 또는 제11항에 있어서, 상기 중화제를 유기용매 대비 50~120몰% 첨가, 분산시키는 것을 특징으로 하는 고강도 공중합 아라미드 섬유의 제조방법.
- 제10항에 또는 제11항에 있어서, 상기 중화제는 수산화칼슘, 산화칼슘, 수산화나트륨 및 탄산리튬 중에서 선택된 1종인 것을 특징으로 하는 고강도 공중합 아라미드 섬유의 제조방법.
- 제10항 또는 제11항에 있어서, 유기용매는 N-메틸-2-피롤리돈, N,N-디메틸아세트아미드, 헥사메틸포스포아미드, N,N,N'N'-테트라메틸우레아 및 N,N-디메틸포름아미드 중에서 선택된 1종인 것을 특징으로 하는 고강도 공중합 아라미드 섬유의 제조방법.
- 제10항 또는 제11항에 있어서, 방사도프를 방사구금을 통해 방사 후 응고, 수세, 연신 및 권취하는 것을 특징으로 하는 고강도 공중합 아라미드의 제조방법.
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EP15834440.8A EP3184675B1 (en) | 2014-08-20 | 2015-08-19 | High-strength copolymerized aramid fiber and preparing method therefor |
US15/502,820 US20170241048A1 (en) | 2014-08-20 | 2015-08-19 | High-strength copolymerized aramid fiber and preparing method therefor |
CN201580044655.1A CN106661774B (zh) | 2014-08-20 | 2015-08-19 | 高强度共聚芳族聚酰胺纤维及其制备方法 |
JP2017507428A JP6629296B2 (ja) | 2014-08-20 | 2015-08-19 | 高強度共重合アラミド繊維及びその製造方法 |
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CN114479163A (zh) * | 2022-01-04 | 2022-05-13 | 煤炭科学研究总院有限公司 | 一种改性对位芳纶纳米纤维气凝胶及其制备方法和应用 |
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CN107923073A (zh) * | 2015-08-07 | 2018-04-17 | 可隆工业株式会社 | 高弹性共聚芳族聚酰胺纤维 |
KR102349084B1 (ko) * | 2016-04-21 | 2022-01-07 | 코오롱인더스트리 주식회사 | 공중합 아라미드 필름을 이용한 아라미드 부직포의 제조방법 |
JP2020147861A (ja) * | 2019-03-12 | 2020-09-17 | 帝人株式会社 | パラ型全芳香族ポリアミド繊維及びその製造方法 |
CN112281244A (zh) * | 2020-11-23 | 2021-01-29 | 蓝星(成都)新材料有限公司 | 一种原液染色芳纶1414纤维的制备方法 |
CN113062141A (zh) * | 2021-03-30 | 2021-07-02 | 山东聚芳新材料股份有限公司 | 一种对位间位芳纶共聚沉析纤维增强对位芳纶纸及其制备工艺 |
CN115216857B (zh) * | 2021-04-19 | 2023-12-22 | 中蓝晨光化工研究设计院有限公司 | 一种石墨烯改性高强高模杂环芳纶的制备方法 |
CN113373544A (zh) * | 2021-06-29 | 2021-09-10 | 宁夏泰和芳纶纤维有限责任公司 | 一种高伸长对位芳纶纤维及其制备方法 |
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US20170241048A1 (en) | 2017-08-24 |
EP3184675B1 (en) | 2019-07-24 |
JP2017527705A (ja) | 2017-09-21 |
CN106661774B (zh) | 2019-06-21 |
JP6629296B2 (ja) | 2020-01-15 |
EP3184675A1 (en) | 2017-06-28 |
EP3184675A4 (en) | 2018-03-21 |
KR102170294B1 (ko) | 2020-10-26 |
KR20160022777A (ko) | 2016-03-02 |
CN106661774A (zh) | 2017-05-10 |
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