KR20110087009A - A process for preparing polyurethaneurea elastic fiber with improved strength and elongation - Google Patents
A process for preparing polyurethaneurea elastic fiber with improved strength and elongation Download PDFInfo
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- D—TEXTILES; PAPER
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- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/70—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyurethanes
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- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
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- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3225—Polyamines
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
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- 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
- D01D1/06—Feeding liquid to the spinning head
- D01D1/065—Addition and mixing of substances to the spinning solution or to the melt; Homogenising
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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
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
- D01F1/106—Radiation shielding agents, e.g. absorbing, reflecting agents
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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
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/72—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyureas
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
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- 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
- D10B2401/062—Load-responsive characteristics stiff, shape retention
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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
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Abstract
Description
본 발명은 강도 및 신도가 향상된 폴리우레탄 우레아 탄성사의 제조방법에 관한 것으로, 보다 상세하게는 폴리올과 디이소시아네이트을 반응시켜 제조한 제1 중합물에 폴리아민과 디이소시아네이트를 반응시켜 제조한 제2 중합물을 3~80% 혼하여 폴리우레탄 우레아 방사원액를 제조한 후, 이를 방사하는 것을 특징으로 하는 강도 및 신도가 향상된 폴리우레탄 우레아 탄성사의 제조 방법에 관한 것이다.The present invention relates to a method for producing a polyurethane urea elastic yarn with improved strength and elongation. More specifically, the second polymer produced by reacting a polyamine with a diisocyanate is reacted with a polyol and a diisocyanate. It relates to a method for producing a polyurethane urea elastic yarn improved strength and elongation, characterized in that 80% blended to prepare a polyurethane urea spinning stock solution, and then spinning it.
폴리우레탄 우레아는 일반적으로 고분자량의 디올 화합물인 폴리올과 과량의 디이소시아네이트 화합물을 반응시켜 폴리올의 양 말단에 이소시아네이트기를 가지는 예비중합체(prepolymer)를 얻는 1차 중합반응과 상기 예비중합체를 적절한 용매에 용해시킨 후 그 용액에 디아민계 또는 디올계 사슬 연장제 및 모노알코올 또는 모노아민 등과 같은 사슬 종결제 등을 첨가하여 반응시키는 단계를 거쳐, 폴리우레탄 우레아 섬유의 방사액을 만든 후 건식 및 습식 방사에 의해 폴리우레탄 우레아 탄성 섬유로 제조된다.Polyurethane urea generally reacts with a polyol, a high molecular weight diol compound, and an excess diisocyanate compound to obtain a prepolymer having an isocyanate group at both ends of the polyol, and dissolving the prepolymer in a suitable solvent. After reacting by adding a diamine-based or diol-based chain extender and a chain terminator such as monoalcohol or monoamine, the solution is made of a spinning solution of polyurethane urea fibers and then dried and wet-spun. It is made of polyurethane urea elastic fiber.
이러한 폴리우레탄 우레아 탄성 섬유는 우수한 탄성 및 탄성회복력을 갖는 고유의 특성 때문에 다양한 용도로 사용되고 있고, 그 용도 범위가 확대됨에 따라 기존의 섬유에 새로운 부가적인 특성이 계속하여 요구되고 있다.
These polyurethane urea elastic fibers are used in various applications because of their inherent properties with excellent elasticity and elastic recovery ability, and as the range of applications thereof is expanded, new additional properties are continuously required for existing fibers.
이에 따라 일반적인 폴리우레탄 우레아 탄성섬유의 내열성 및 기계적 내구성을 강화하고자 하는 필요성이 증대되고 있으나. 종래 가장 보편적으로 사용해온 탄성사 제조용 중합물 제조시에 캡핑비(capping ratio)를 높이고, 결합력이 높고 측쇄(side chain)가 없는 쇄연장제를 사용하는 방법은 원사의 파워 및 내열성 향상에는 유리한 반면, 원사의 강도 및 신도가 저하되는 단점이 있다.Accordingly, there is an increasing need to reinforce the heat resistance and mechanical durability of general polyurethane urea elastic fibers. In order to increase the capping ratio and to use a chain extender having a high bonding strength and no side chain in preparing a polymer for preparing elastic yarn, which is the most commonly used, it is advantageous to improve the power and heat resistance of the yarn, There is a disadvantage in that the strength and elongation of the deterioration.
상기와 같은 방법으로 파워 및 내열성을 향상시키는 경우에는 원사의 신도가 저하되는 단점이 있고, 중합물의 겔 형성에 따른 급격한 점도의 상승, 용해성 저하 등의 문제가 발생하여 공정관리가 용이하지 못한 한계가 있었다.In the case of improving the power and heat resistance by the above method, there is a disadvantage that the elongation of the yarn is lowered, and problems such as rapid increase in viscosity and lower solubility due to the formation of the gel of the polymer result in limitations in the process management. there was.
따라서 본 발명은 원사의 신도를 확보하면서 강도를 향상시킬 수 있는 폴리우레탄 우레아 탄성사 제조방법을 제공함에 그 목적이 있다.Therefore, an object of the present invention is to provide a method for producing a polyurethane urea elastic yarn that can improve the strength while securing the elongation of the yarn.
본 발명은 폴리올과 디아이소시아나네이트를 반응시켜 제조한 제1 중합물에 폴리아민과 디아이소시아나네이트를 반응시켜 제조한 제 2 중합물을 3~80% 혼합하여 폴리우레탄 우레아 방사원액를 제조, 방사함으로써 강도 및 신도가 향상된 폴리우레탄 우레아 탄성사를 제조하였다.The present invention is prepared by spinning 3 to 80% of a second polymer prepared by reacting a polyamine with a diisocyanate to a first polymer prepared by reacting a polyol and a diisocyanate to prepare and spin a polyurethane urea spinning solution. Polyurethane urea elastic yarn with improved elongation was prepared.
본 발명은 폴리올과 디이소시아네이트의 중합물에 폴리아민과 디이소시아네이트의 중합물을 혼합함으로써 섬유 내의 우레아 성분을 증가시켜 강도 및 신도가 향상된 폴리우레탄 우레아 탄성사를 제조하는 방법을 제공하는 효과가 있다.The present invention has the effect of providing a method for producing a polyurethane urea elastic yarn with improved strength and elongation by increasing the urea component in the fiber by mixing a polymer of polyamine and diisocyanate with a polymer of polyol and diisocyanate.
이하, 본 발명의 폴리우레탄 우레아 탄성사를 제조하는 방법에 대하여 보다 상세하게 설명한다.
Hereinafter, the method of manufacturing the polyurethane urea elastic yarn of this invention is demonstrated in detail.
제1 중합물은 고분자량의 디올 화합물인 폴리올과 과량의 디이소시아네이트 화합물을 반응시켜 폴리올의 양 말단에 이소시아네이트기를 가지는 예비중합체(prepolymer)를 얻는 중합반응물과 상기 예비중합체를 유기 용매에 용해시킨 후 그 용액에 디아민 및 모노아민을 반응시키는 단계를 거쳐 제조된다.
The first polymer is obtained by dissolving a prepolymer having an isocyanate group at both ends of the polyol with a polyol which is a high molecular weight diol compound and an excess of a diisocyanate compound, and then dissolving the prepolymer in an organic solvent. It is prepared through the step of reacting diamine and monoamine.
상기 디이소시아네이트는 4,4'-디페닐메탄디이소시아네이트, 1,5'-나프탈렌디이소시아네이트, 1,4'-페닐렌디이소시아네이트, 헥사메틸렌 디이소시아네이트, 1,4'-시클로헥산디이소시아네이트, 4,4'-디시클로헥실 메탄디이소시아네이트, 이소포론디이소시아네이트 등이 사용될 수 있으며, 상기 열거군에서 1종 이상이 사용될 수 있다.
The diisocyanate is 4,4'-diphenylmethane diisocyanate, 1,5'-naphthalene diisocyanate, 1,4'-phenylene diisocyanate, hexamethylene diisocyanate, 1,4'-cyclohexanediisocyanate, 4, 4'-dicyclohexyl methane diisocyanate, isophorone diisocyanate, and the like may be used, and one or more of the above enumerated groups may be used.
상기 예비중합체의 이소시아네이트 중량 비율은 폴리우레탄 우레아 탄성사로서의 물성 발현을 위하여 1.75% 내지 4.13%인 것이 바람직하다. 만약 예비중합체의 이소시아네이트 중량 비율 1.75% 미만이거나 4.13%를 초과하면 탄성사의 물성 저하가 초래된다.
Isocyanate weight ratio of the prepolymer is preferably 1.75% to 4.13% for the physical properties of the polyurethane urea elastic yarn. If the isocyanate weight ratio of the prepolymer is less than 1.75% or more than 4.13%, the physical properties of the elastic yarn are lowered.
본 발명에 사용되는 고분자 디올은 폴리테트라메틸렌에테르 글리콜, 폴리프로필렌 글리콜, 폴리카보네이트디올, 알킬렌옥사이드와 락톤모노머의 혼합물과 폴리(테트라메틸렌에테르)글리콜의 공중합체, 3-메틸-테트라히드로푸란과 테트라히드로푸란의 공중합체 등에서 1종 또는 이들의 2종 이상의 혼합물로 예시할 수 있으나 반드시 이들로 제한되는 것은 아니다.
The polymer diols used in the present invention include polytetramethylene ether glycol, polypropylene glycol, polycarbonate diol, copolymers of alkylene oxide and lactone monomers, copolymers of poly (tetramethylene ether) glycol, 3-methyl-tetrahydrofuran and It may be exemplified as one or a mixture of two or more thereof in a copolymer of tetrahydrofuran and the like, but is not necessarily limited thereto.
상기 사슬연장제로는 디아민류가 사용되며, 그 예로는 에틸렌디아민, 1, 2-디아미노프로판, 1, 3-디아미노프로판, 1,4-디아미노부탄, 2,3-디아미노부탄, 1,5-디아미노펜탄, 1, 6-헥사메틸렌디아민 및 1,4-씨클로헥산디아민 등의 1종 또는 이들의 2종 이상의 혼합물을 예시할 수 있다.
Diamines are used as the chain extender, and examples thereof include ethylenediamine, 1, 2-diaminopropane, 1, 3-diaminopropane, 1,4-diaminobutane, 2,3-diaminobutane, 1 One kind or a mixture of two or more kinds thereof, such as, 5-diaminopentane, 1, 6-hexamethylenediamine and 1,4-cyclohexanediamine, can be exemplified.
폴리우레탄 우레아의 사슬종결제로는 1 관능기를 갖는 아민, 예를 들어 디에틸아민, 모노에탄올아민, 디메틸아민 등이 사용될 수 있다.
As the chain terminator of the polyurethane urea, an amine having a monofunctional group, for example, diethylamine, monoethanolamine, dimethylamine and the like can be used.
제2 중합물은 양말단이 -NH2로 치환된 폴리아민(분자량 200~3000)과 과량의 디이소시아네이트 화합물을 반응시킨 후 쇄연장과정을 통하여 제조된다.
The second polymer is prepared through a chain extension process after the sock end reacts with a polyamine (molecular weight 200-3000) substituted with -NH2 and an excess of diisocyanate compound.
또한, 본 발명에서는 자외선, 대기 스모그 및 스판덱스 가공에 수반되는 열처리 과정 등에 의한 폴리우레탄 우레아의 변색과 물성 저하를 방지하기 위해, 방사원액에 입체장애 페놀계 화합물, 벤조퓨란-온계 화합물, 세미카바자이드계 화합물, 벤조 트리아졸계 화합물, 중합체성 3급 아민 안정제 등을 적절히 조합하여 첨가할 수 있다.In addition, in the present invention, in order to prevent discoloration and deterioration of physical properties of the polyurethane urea due to the heat treatment process associated with ultraviolet rays, atmospheric smog and spandex processing, the steric hindrance phenolic compound, benzofuran-one compound, semicarbazide Type compound, a benzo triazole type compound, a polymeric tertiary amine stabilizer, etc. can be added combining them suitably.
나아가, 본 발명의 폴리우레탄 우레아 탄성사는 상기 성분 외에도 이산화티탄, 마그네슘 스테아레이트 등과 같은 첨가제를 포함할 수 있다.
Further, the polyurethane urea elastic yarn of the present invention may include additives such as titanium dioxide, magnesium stearate, and the like in addition to the above components.
본 발명에 의한 탄성사는 상기 제1 중합물에 상기 제2중합물을 3~80% 혼합하여 폴리우레탄 우레아 방사원액를 방사함으로써 제조될 수 있다.
The elastic yarn according to the present invention may be prepared by spinning the polyurethane urea spinning solution by mixing 3 to 80% of the second polymer in the first polymer.
상기 방사원액 중 제2중합물이 3% 이하로 사용하면, 탄성사의 강도 및 신도의 향상 효과가 없어 본 발명에서 얻고자 하는 제품을 얻을 수 없다.
When the second polymer in the spinning stock solution is used at 3% or less, there is no effect of improving the strength and elongation of the elastic yarn, and thus a product to be obtained in the present invention cannot be obtained.
이하, 구체적인 실시예 및 비교예를 통하여 본 발명의 우수성을 상세하게 설명하고자 하나, 이러한 실시예는 단지 본 발명을 예증하기 위한 것으로서 본 발명의 범위를 제한하는 것으로 해석되어서는 안 된다.
Hereinafter, the present invention will be described in detail with reference to specific examples and comparative examples. However, these examples are merely to illustrate the present invention and should not be construed as limiting the scope of the present invention.
후술하는 실시예 및 비교예에서 언급한 원사의 강도 및 신도는 아래와 같이 측정하였다.
The strength and elongation of the yarn mentioned in Examples and Comparative Examples to be described later were measured as follows.
[원사의 강도 및 신도][Strength and elongation of yarn]
자동 강신도 측정장치(MEL기, Textechno社)를 이용하여 시료길이 10cm, 인장속도 100cm/min로 하여 측정한다. 이 때 파단 시의 강력과 신도값이 측정되며, 원사 200% 신장 시 원사에 걸리는 하중(200% 모듈러스)도 측정된다.
Using an automatic elongation measuring device (MEL machine, Textechno Co., Ltd.), measure the sample length as 10cm and tensile speed 100cm / min. At this time, the strength and elongation at break are measured, and the load on the yarn (200% modulus) at 200% elongation of the yarn is also measured.
실시예Example
제1 중합물은 고분자량의 디올 화합물인 폴리올과 과량의 디이소시아네이트 화합물을 반응시켜 폴리올의 양 말단에 이소시아네이트기를 가지는 예비중합체(prepolymer)를 얻었으며, 상기 예비중합체를 유기 용매에 용해시킨 후 그 용액에 디아민을 반응시켜 중합물을 얻었다.The first polymer was reacted with a polyol, a high molecular weight diol compound, and an excess of diisocyanate compound to obtain a prepolymer having isocyanate groups at both ends of the polyol. The prepolymer was dissolved in an organic solvent and then dissolved in the solution. Diamine was reacted to obtain a polymer.
제2 중합물은 양말단이 -NH2로 치환된 폴리아민(분자량 200~3000)과 과량의 디이소시아네이트 화합물을 반응시킨 후 쇄연장과정을 통하여 제조하였다.
The second polymer was prepared by chain extension after reacting the polyamine (molecular weight 200-3000) substituted with -NH2 with an excess of diisocyanate compound.
상기 제1 중합물에 상기 제2 중합물을 30% 혼합하여 폴리우레탄 우레아 방사원액를 제조하였다.
30% of the second polymer was mixed with the first polymer to prepare a polyurethane urea spinning solution.
비교예Comparative example
고분자량의 디올 화합물인 폴리올과 과량의 디이소시아네이트 화합물을 반응시켜 폴리올의 양 말단에 이소시아네이트기를 가지는 예비중합체(prepolymer)를 얻었으며, 상기 예비중합체를 유기 용매에 용해시킨 후 그 용액에 디아민을 반응시켜 중합물을 얻었다.A polyol, a high molecular weight diol compound, and an excess of diisocyanate compound were reacted to obtain a prepolymer having an isocyanate group at both ends of the polyol. After dissolving the prepolymer in an organic solvent, the diamine was reacted with the solution. A polymer was obtained.
하기 표 1에서는 본 발명에 따른 실시예와 종래의 폴리우레탄 우레아 제조공정인 비교예를 대비하여 물성을 나타내었다.
Table 1 shows physical properties in comparison with the examples according to the present invention and a comparative example of a conventional polyurethane urea manufacturing process.
표 1.Table 1.
표 1에서 보는 바와 같이, 폴리올과 디아이소시아나네이트를 반응시켜 제조한 제1 중합물에 폴리아민과 디아이소시아나네이트를 반응시켜 제조한 제 2 중합물을 30% 혼합하여 제조된 폴리우레탄 우레아 탄성사는 우수한 강도 및 신도를 나타냄을 확인할 수 있었다.As shown in Table 1, a polyurethane urea elastic yarn prepared by mixing 30% of a second polymer prepared by reacting a polyamine and a diisocyanate with a first polymer prepared by reacting a polyol and a diisocyanate was excellent in strength. And it was confirmed that the elongation.
Claims (4)
ⅰ) 폴리올과 디이소시아네이트를 반응시켜 제1 예비 중합체를 제조하는 단계,
ⅱ) 제1 예비 중합체에 사슬 연장제를 첨가하여 제1 중합물을 제조하는 단계,
ⅲ) 폴리아민과 디이소시아네이트를 반응시켜 제2 예비 중합체를 제조하는 단계,
ⅳ) 제2 예비 중합체에 사슬 연장제를 첨가하여 제2 중합물을 제조하는 단계 및
ⅴ) 상기 제1 중합물에 상기 제2 중합물을 3~80% 혼합하여 폴리우레탄 우레아 방사원액를 제조한 후, 이를 방사하는 것을 특징으로 하는 강도 및 신도가 향상된 폴리우레탄 우레아 탄성사의 제조 방법.
In the manufacturing method of the polyurethane urea elastic yarn which consists of a polymer of a polyol and diisocyanate, and a polymer of a polyamine and diisocyanate,
Iii) reacting the polyol with diisocyanate to prepare a first prepolymer,
Ii) adding a chain extender to the first prepolymer to prepare a first polymer,
Iii) reacting the polyamine with the diisocyanate to prepare a second prepolymer,
Iii) adding a chain extender to the second prepolymer to produce a second polymer, and
Iii) 3 to 80% of the second polymer is mixed with the first polymer to prepare a polyurethane urea spinning stock solution, and then the spinning is performed.
상기 디이소시아네이트는 4,4’-디페닐메탄디이소시아네이트, 1,5’-나프탈렌디이소시아네이트, 1,4’-페닐렌디이소시아네이트, 헥사메틸렌 디이소시아네이트, 1,4’-시클로헥산디이소시아네이트, 4,4’-디시클로헥실메탄디이소시아네이트, 또는 이소포론디이소시아네이트로 이루어진 군에서 선택된 1종 또는 2종 이상인 것을 특징으로 하는 강도 및 신도가 향상된 폴리우레탄 우레아 탄성사의 제조 방법.
The method of claim 1,
The diisocyanate is 4,4'-diphenylmethane diisocyanate, 1,5'-naphthalene diisocyanate, 1,4'-phenylene diisocyanate, hexamethylene diisocyanate, 1,4'-cyclohexanediisocyanate, 4, 4'-dicyclohexyl methane diisocyanate, or isophorone diisocyanate 1 or 2 or more selected from the group consisting of a method for producing a polyurethane urea elastic yarn improved strength and elongation.
상기 폴리올은 폴리테트라메틸렌에테르 글리콜, 폴리프로필렌글리콜, 폴리카보네이트디올, 알킬렌옥사이드와 락톤모노머의 혼합물과 폴리(테트라메틸렌에테르)글리콜의 공중합체, 또는, 3-메틸-테트라히드로푸란과 테트라히드로푸란의 공중합체로 이루어진 군에서 선택된 1종 또는 2종 이상인 것을 특징으로 하는 강도 및 신도가 향상된 폴리우레탄 우레아 탄성사의 제조 방법.
The method of claim 1,
The polyol is polytetramethylene ether glycol, polypropylene glycol, polycarbonate diol, copolymer of alkylene oxide and lactone monomer and poly (tetramethylene ether) glycol, or 3-methyl-tetrahydrofuran and tetrahydrofuran Method of producing a polyurethane urea elastic yarn improved strength and elongation, characterized in that one or two or more selected from the group consisting of a copolymer.
상기 사슬연장제는 에틸렌디아민, 1,2-디아미노프로판, 1,3-디아미노프로판, 1,4-디아미노부탄, 2,3-디아미노부탄, 1,5-디아미노펜탄, 1,6-헥사메틸렌디아민 및 1,4-씨클로헥산디아민으로 구성된 군에서 선택되는 1종 또는 2종 이상인 것을 특징으로 하는 강도 및 신도가 향상된 폴리우레탄 우레아 탄성사의 제조방법.
The method of claim 1,
The chain extender, ethylenediamine, 1,2-diaminopropane, 1,3-diaminopropane, 1,4-diaminobutane, 2,3-diaminobutane, 1,5-diaminopentane, 1, A method for producing a polyurethane urea elastic yarn having improved strength and elongation, characterized in that one or two or more selected from the group consisting of 6-hexamethylenediamine and 1,4-cyclohexanediamine.
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