KR20080062507A - Process for preparation of p-aramid fiber with an excellent anti-fatigueness - Google Patents
Process for preparation of p-aramid fiber with an excellent anti-fatigueness Download PDFInfo
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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
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
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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
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/06—Washing or drying
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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
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/06—Wet spinning methods
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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
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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
- D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides
- D01F6/605—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides from aromatic polyamides
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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
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/10—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one other macromolecular compound obtained by reactions only involving carbon-to-carbon unsaturated bonds as constituent
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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
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
- D02G3/047—Blended or other yarns or threads containing components made from different materials including aramid fibres
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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
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/441—Yarns or threads with antistatic, conductive or radiation-shielding properties
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- 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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- 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
- D10B2401/14—Dyeability
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Abstract
Description
본 발명은 주성분이 파라-아라미드 특히 폴리(p-페닐렌 테레프탈아미드)(PPTA)이며 여기에 방사 첨가제로서 폴리비닐알코올(PVA)을 포함시켜서 제조한 파라-아라미드섬유 및 상기 PVA를 가교시킨 파라-아라미드섬유에 관한 것이다. 파라-아라미드 섬유와 PVA의 혼합물로 제조한 섬유에 PVA 부분을 가교처리한 섬유는 파라-아라미드 단독으로 제조한 섬유보다 향상된 인장 특성을 나타내고, 염색성 향상, UV 안정성 향상, 고무 접착력 향상 등과 같은 다양한 이점을 나타내며 특히, 내피로도가 향상된다.The present invention relates to para-aramid fibers prepared by including para-aramid, in particular poly (p-phenylene terephthalamide) (PPTA), including polyvinyl alcohol (PVA) as a spinning additive and para-crosslinked PVA. It relates to aramid fibers. Fibers crosslinked with PVA parts on fibers made of a mixture of para-aramid fibers and PVA show improved tensile properties over fibers made with para-aramid alone, and have various advantages such as improved dyeability, improved UV stability, and improved rubber adhesion. In particular, fatigue resistance is improved.
파라-아라미드 섬유는 범용 섬유인 폴리아미드, 폴리에스테르, 폴리아크릴로니트릴 섬유보다 우수한 강도와 탄성률을 나타내며 내열성 및 내화학성이 매우 우수하기 때문에 다양한 산업용 소재로서 사용되고있다.Para-aramid fibers are used as various industrial materials because they exhibit superior strength and modulus and are excellent in heat resistance and chemical resistance than general-purpose fibers such as polyamide, polyester, and polyacrylonitrile fibers.
또 최근에는 광케이블, 콘크리트 보강소재, 고무?플라스틱 보강소재 및 우주?항공 분야에서도 다양하게 사용되고 있으며, 새로운 분야에 대한 응용 가능성이 높은 소재로서 연구·개발되어지고 있다.Recently, it has been used in various fields such as optical cable, concrete reinforcement, rubber and plastic reinforcement, and aerospace and aviation.
1991년 12월 17일자로 허여된 리(Lee)의 미합중국 특허 제 5,073,440호에는 PPTA와 수용성 고분자인 폴리비닐피롤리돈과의 혼합물로 제조된 섬유가 개시되어 있다.Lee, US Pat. No. 5,073,440, issued December 17, 1991, discloses fibers made from a mixture of PPTA and polyvinylpyrrolidone, a water-soluble polymer.
그러나 상기 파라-아라미드섬유들은 펼쳐진 사슬구조에 기인하여 사슬들 사이의 수소결합과 낮은 반데르발스력 이외에는 강한 면결합을 형성하는 힘이 없다. 이로 인해 피브릴화가 나타나며 내피로도가 낮아지며 또한 모우가 발생되는 단점을 지니고 있다.However, the para-aramid fibers do not have a strong surface bond other than hydrogen bonds and low van der Waals forces between the chains due to the unfolded chain structure. As a result, fibrillation occurs, fatigue resistance is low, and there is a disadvantage in that it occurs.
본 발명은 우수한 내피로도와 고강도의 물성을 발휘하는 파라-아라미드섬유를 제공하는데 기술적 과제를 두고 있다.The present invention has a technical problem to provide a para-aramid fiber exhibiting excellent fatigue resistance and high strength physical properties.
본 발명을 이하 상세히 설명한다.The present invention is described in detail below.
본 발명자들은 유연쇄 사슬 고분자인 PVA가 PPTA와의 강한 분자간 결합력에 의해 PPTA 분자사슬에 강하게 흡착된다는 사실과, 상기 PVA 성분을 방향족 알데히드 화합물과 산 촉매를 포함하는 가교 수용액에 알코올을 첨가하여 가교화 반응을 진행시키면 우수한 내피로도와 고강도의 섬유물성을 발휘시킬 수 있다는 사실을 알게 되어 본 발명을 완성하였다. The present inventors found that PVA, a flexible chain polymer, is strongly adsorbed to the PPTA molecular chain by strong intermolecular bonding force with PPTA, and the PVA component is crosslinked by adding alcohol to a crosslinked aqueous solution containing an aromatic aldehyde compound and an acid catalyst. Proceeding the present invention was found to exhibit excellent fatigue resistance and high strength fiber properties to complete the present invention.
본 발명에 의한 파라-아라미드와 PVA와의 혼합물로 제조한 섬유는 파라-아라미드 단독으로 제조한 섬유보다 향상된 인장 특성을 나타내고, 또한 염색성 향상, UV 안정성 향상, 고무 접착력 향상 등과 같은 다양한 이점을 나타낸다.Fibers prepared from a mixture of para-aramid and PVA according to the present invention exhibit improved tensile properties over fibers made from para-aramid alone, and also exhibit various advantages such as improved dyeability, improved UV stability, improved rubber adhesion, and the like.
또 본 발명은 파라-아라미드, 주로 PPTA와 폴리비닐알코올(PVA)로 이루어지고 이를 가교 처리한 섬유를 제공한다. 섬유는 바람직하게는 파라-아라미드의 중량을 기준으로 3내지 30%의 PVA를 포함한다.In another aspect, the present invention provides a fiber consisting of para-aramid, mainly PPTA and polyvinyl alcohol (PVA) and crosslinked. The fibers preferably comprise 3 to 30% PVA based on the weight of the para-aramid.
본 발명의 섬유는 15g/d 이상의 필라멘트 강도와 17g/d 이상의 비강도를 갖는다. 또한, 본 발명의 섬유는 산 용매에 파라-아라미드 및 PVA의 이방성 혼합물을 잘 교반한 후 교반된 혼합물을 상기 혼합물의 융점 이상의 온도로 가열한 다음 방사구금을 통해 압출시키고 에어겝(air-gap)과 응고욕을 순차적으로 통과시켜서 제조한다.The fibers of the present invention have a filament strength of at least 15 g / d and a specific strength of at least 17 g / d. In addition, the fibers of the present invention, after stirring well the anisotropic mixture of para-aramid and PVA in an acid solvent, the stirred mixture is heated to a temperature above the melting point of the mixture and then extruded through a spinneret and air-gap It is prepared by sequentially passing through the coagulation bath.
파라-아라미드는 바람직하게 PPTA이고 p-페닐렌 디아민과 테레프탈로일 클로라이드의 등몰 중합반응으로부터 생성된 중합체를 의미한다. PPTA의 제조는 미합중국 특허 제3,869,429호, 제 4,308,374호 및 제 4,698,414호에 기술되어 있다.Para-aramid is preferably PPTA and means a polymer resulting from an equimolar polymerization of p-phenylene diamine with terephthaloyl chloride. The preparation of PPTA is described in US Pat. Nos. 3,869,429, 4,308,374 and 4,698,414.
PVA는 본 발명의 섬유에 있어서 부가 중합체이다. PVA는 비닐아세테이트를 라디칼 개시제에 의해 중합한 폴리비닐아세테이트를 검화(saponification)과정을 통해 제조된다.PVA is an addition polymer in the fiber of this invention. PVA is prepared by saponification of polyvinyl acetate obtained by polymerizing vinyl acetate with a radical initiator.
본 발명에 사용된 PVA는 검화도가 98%이상이며, 분자량이 5,000내지 300,000의 범위인 PVA가 사용된다. 고분자량의 PVA는 고점도의 방사원액을 생성하므로 바람직하게는 분자량이 13,000내지 146,000의 범위내에 있는 PVA가 적당하다.PVA used in the present invention has a saponification degree of 98% or more, and PVA having a molecular weight in the range of 5,000 to 300,000 is used. Since high molecular weight PVA produces a high viscosity spinning stock solution, PVA having a molecular weight in the range of 13,000 to 146,000 is preferable.
본 발명의 섬유는 PPTA와 PVA와의 혼합물인 원액을 에어겝 습식방사(dry jet wet spinning)하여 제조한다.The fiber of the present invention is prepared by dry jet wet spinning a stock solution which is a mixture of PPTA and PVA.
방사 원액은 PPTA와 PVA와의 이방성 용액이다. 방사 용매로는 황산이 주로 사용되며 농도가 98%내지 101%이다.Spinning stock solutions are anisotropic solutions of PPTA and PVA. Sulfuric acid is mainly used as a spinning solvent, and the concentration is 98% to 101%.
방사 원액은 미세하게 분쇄된 형태의 PPTA와 PVA를 농황산에 교반하여 제조할 수 있다. 방사 원액은 PPTA와 PVA가 완전히 용해되도록 가온되어야 하지만 중합체의 분해를 최소화하기 위해, 온도는 가능한 낮게 유지시켜야 한다.Spinning stock solution may be prepared by stirring PPTA and PVA in finely ground form in concentrated sulfuric acid. The spinning stock should be warmed to allow complete dissolution of PPTA and PVA, but the temperature should be kept as low as possible to minimize degradation of the polymer.
본 발명에 효과적인 방사 원액은 일반적으로 용매 100ml 당 중합체(PPTA와 PVA의 총량) 약 35내지 45g을 포함한다. 1.84g/㎤의 진한 황산을 사용할 때, 일반적으로 방사원액은 PPTA중합체를 16.0내지 21중량% 포함한다. 중합체의 총 농도는 방사 원액이 이방성이 되도록 하는 것이 중요하다. 본 발명의 이점을 나타내기 위해서는, 방사 원액 중 PPTA의 중량을 기준으로 3내지 30중량%의 PVA가 적합하다. Spinning stocks effective for the present invention generally comprise about 35 to 45 g of polymer (total amount of PPTA and PVA) per 100 ml of solvent. When using 1.84 g / cm 3 of concentrated sulfuric acid, the spinning stock typically contains 16.0 to 21 weight percent PPTA polymer. The total concentration of the polymer is important to make the spinning stock solution anisotropic. In order to show the advantages of the present invention, 3 to 30% by weight of PVA based on the weight of PPTA in the spinning stock solution is suitable.
본 발명은 상기와 같이 제조된 섬유에 대해, PVA 성분을 방향족 알데히드 화합물과 산 촉매를 포함하는 가교 수용액에 알코올을 첨가하여 가교화 반응을 시킨 섬유를 제공한다.The present invention provides a fiber in which the PVA component is subjected to a crosslinking reaction by adding alcohol to a crosslinking aqueous solution containing an aromatic aldehyde compound and an acid catalyst.
가교 수용액에 첨가되는 알코올은 메탄올이며 그 함량이 1 내지 30중량%인 것이 바람직하다.The alcohol added to the crosslinked aqueous solution is methanol, and the content thereof is preferably 1 to 30% by weight.
가교 처리된 방향족 알데히드 화합물의 함량이 중량비로 0.5내지 2.0중량%이며 이때, 방향족 알데히드는 PVA의 히드록시기와 가교반응이 가능한 알데히드 화합물로 가교효율성을 높이기 위해서는 알데히드기가 2개 이상인 화합물이며 테레프탈디카르복살데히드(TDA)인 것이 바람직하다.The content of the crosslinked aromatic aldehyde compound is 0.5 to 2.0% by weight. At this time, the aromatic aldehyde is an aldehyde compound capable of crosslinking reaction with a hydroxy group of PVA. It is preferable that it is (TDA).
가교 처리 반응 시 산촉매를 사용하며 산촉매로는 초산이 바람직하다.An acid catalyst is used in the crosslinking treatment reaction, and acetic acid is preferable as the acid catalyst.
시험 방법Test Methods
비강도 ; PVA 양에 대해 보정된 시험 하에 섬유의 파단응력을 선밀도로 나눈 값이다. PPTA와 비교했을 때, PVA는 섬유의 강력에 거의 영향을 주지 않기 때문에 섬유의 강도는 PVA의 존재에 대해 보정될 수 있다. 비강도는 섬유 내 PPTA 강력의 척도이며, 강도를 섬유 내 PPTA의 중량 분율로 나눔으로써 결정된다.Specific strength; The breaking stress of the fiber divided by the linear density under the test corrected for the amount of PVA. Compared to PPTA, the strength of the fiber can be corrected for the presence of PVA since PVA has little effect on the strength of the fiber. Specific strength is a measure of PPTA strength in fibers and is determined by dividing strength by the weight fraction of PPTA in fibers.
고무 접착성 : 고무 접착 시험은 굽히지 않은 고무와 고무에 매봉된 보강 코오드 층 사이의 접착력(박리강도)만을 평가하기 위해 사용한다. 시험 표본은 보강된 고무 제품 자체이다. 사용된 시험은 ASTM D 2630-71이다.Rubber Adhesion: The rubber adhesion test is used to assess only the adhesion (peel strength) between the unbended rubber and the reinforcement cord layer embedded in the rubber. The test specimen is the reinforced rubber product itself. The test used is ASTM D 2630-71.
내피로도 : 굿리치 디스크 피로 시험기(Goodrich Disc Fatigue tester)를 이용하여 피로 시험 후 잔여 강도를 측정하여 내피로도를 비교하였다. 피로 시험 조건은 120℃, 2500rpm, 압축 6% 및 12%, 20℃에서 72시간 조건이었으며, 피로 시험 후 인장강도 시험기를 이용해 잔여 강도를 측정하였다.Fatigue resistance: The fatigue strength was measured after the fatigue test using a Goodrich Disc Fatigue tester to compare fatigue resistance. The fatigue test conditions were 72 hours at 120 ° C, 2500rpm, 6% and 12% compression, and 20 ° C. After the fatigue test, the residual strength was measured using a tensile strength tester.
본 발명에서 사용된 PVA는 분자량이 5,000~85,000 이며 상기 분자량의 범위는 본 발명의 범위를 한정하고자 하는 것은 아니다.The PVA used in the present invention has a molecular weight of 5,000 to 85,000 and the range of the molecular weight is not intended to limit the scope of the present invention.
< 실시예 1 ><Example 1>
농도가 100.1%인 황산을 15℃로 냉각하여 232.8g/min의 속도로 2인치 트윈 익스트루더(twin extruder)로 이송하고 고유점도가 6.3인 PPTA와 분자량이 50,000~85,000인 PVA가 PPTA의 대비 12중량%로 균일하게 혼합된 것을 56.4g/min의 속도로 2인치 트윈 익스트루더(twin extruder)로 이송하여 황산과 혼합한 후 5인치 트윈 익스트루더(twin extruder)로 이송하여 85℃에서 완전히 용해시킨 후 720mmHg의 감압 하에서 탈포한다. 생성된 원액을 오리피스 0.062mm인 1000개의 홀 을 갖는 방사구금을 통해 압출하고 압출된 원액을 64mm 길이의 에어겝(air-gap)을 거쳐 3℃의 10%황산 수용액에 방출한다. 생성된 섬유를 1%수산화나트륨 수용액 및 물로 세척하고 롤에서 170℃에서 건조시켜 400m/min으로 권취시킨다. 이와 같이 보빈에 권취된 섬유를 방향족 알데히드인 테레프탈디카르복살데히드(TDA)에 침지시켜 가교처리한다. 가교처리는 TDA 2중량%와 초산 10중량%를 물에 용해한 가교 수용액을 제조 후, 상기 가교 수용액에 추가로 메탄올을 10중량% 첨가시킨 후, 보빈에 권취된 섬유를 70℃에서 1시간 동안 침지시켜 반응 후 물로 세척한다. Sulfuric acid with a concentration of 100.1% was cooled to 15 ℃ and transferred to a 2-inch twin extruder at a speed of 232.8 g / min. PPTA having an intrinsic viscosity of 6.3 and PVA having a molecular weight of 50,000 to 85,000 were compared with those of PPTA. The mixture of 12 wt% uniformly was transferred to a 2 inch twin extruder at a rate of 56.4 g / min, mixed with sulfuric acid, and then transferred to a 5 inch twin extruder at 85 ° C. After complete dissolution, defoaming under reduced pressure of 720 mmHg. The resulting stock solution is extruded through a spinneret having 1000 holes of 0.062 mm orifice, and the extruded stock solution is discharged into an aqueous 10% sulfuric acid solution at 3 ° C. via a 64 mm air-gap. The resulting fiber is washed with 1% aqueous sodium hydroxide solution and water, dried at 170 ° C. in a roll and wound up at 400 m / min. The fiber wound in the bobbin is immersed in terephthaldicarboxaldehyde (TDA), which is an aromatic aldehyde, and crosslinked. In the crosslinking treatment, after preparing a crosslinking aqueous solution in which 2% by weight of TDA and 10% by weight of acetic acid were dissolved in water, 10% by weight of methanol was further added to the crosslinking solution, and the fiber wound in the bobbin was immersed at 70 ° C. for 1 hour. After washing to wash with water.
< 실시예 2 ><Example 2>
표 1과 같은 비율로 TDA, 초산, 메탄올 비율을 조절하여 가교처리 후 강도 및 내피로도를 비교하였다.TDA, acetic acid and methanol were adjusted in the same ratio as in Table 1 to compare the strength and fatigue resistance after crosslinking treatment.
< 비교예 1 ><Comparative Example 1>
비교예 1은 가교처리를 실시하지 않은 경우로서 결과는 표 1과 같다.In Comparative Example 1, the crosslinking treatment was not performed, and the results are shown in Table 1.
< 비교예 2, 3 ><Comparative Examples 2 and 3>
비교예2는 가교반응을 3시간 동안 하였을 경우로서 결과는 표 1과 같다, 비교예 3은 반응온도를 30℃로 하였을 경우로서 결과는 표 1과 같다.In Comparative Example 2, the crosslinking reaction was performed for 3 hours, and the results are shown in Table 1. Comparative Example 3 is the case in which the reaction temperature was set to 30 ° C.
< 비교예 4 ><Comparative Example 4>
비교예 4는 PVA와 혼합하지 않은 PPTA 단독으로 제조한 섬유의 경우로 결과는 표 1과 같다.Comparative Example 4 is a case of the fiber produced by PPTA alone not mixed with PVA, the results are shown in Table 1.
본 발명에 의한 파라-아라미드섬유는 파라-아라미드 단독으로 제조한 섬유보다 내피로도가 97%이상이며, 동시에 염색성과 UV 안정성이 향상된다. 또 고무 접착력에 있어서 박리강도가 20.14Kgf 이상으로 우수하다.Para-aramid fiber according to the present invention has a fatigue resistance of 97% or more than the fiber produced by para-aramid alone, and at the same time improves the dyeability and UV stability. Moreover, the peel strength was excellent in rubber adhesive force of 20.14 Kgf or more.
Claims (7)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101031924B1 (en) * | 2009-03-20 | 2011-04-29 | 주식회사 휴비스 | Process Of Producing Nano Size Meta-Aramid Fibrils |
| KR20200110839A (en) * | 2019-03-18 | 2020-09-28 | 효성첨단소재 주식회사 | P-aramid fiber having excellent fatigue resistance and manufacturing method of the same |
| KR20220094642A (en) * | 2020-12-29 | 2022-07-06 | 코오롱인더스트리 주식회사 | Method for producing para-aramid fibers and para-aramid fibers producted thereform |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101031924B1 (en) * | 2009-03-20 | 2011-04-29 | 주식회사 휴비스 | Process Of Producing Nano Size Meta-Aramid Fibrils |
| KR20200110839A (en) * | 2019-03-18 | 2020-09-28 | 효성첨단소재 주식회사 | P-aramid fiber having excellent fatigue resistance and manufacturing method of the same |
| KR20220094642A (en) * | 2020-12-29 | 2022-07-06 | 코오롱인더스트리 주식회사 | Method for producing para-aramid fibers and para-aramid fibers producted thereform |
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