CN115702264A - 高抗拉尼龙6.6纱线 - Google Patents

高抗拉尼龙6.6纱线 Download PDF

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CN115702264A
CN115702264A CN202080102391.1A CN202080102391A CN115702264A CN 115702264 A CN115702264 A CN 115702264A CN 202080102391 A CN202080102391 A CN 202080102391A CN 115702264 A CN115702264 A CN 115702264A
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yarn
dtex
nylon
tri
tenacity
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C·京迪兹
M·S·菲丹
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Kordsa Teknik Tekstil AS
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Kordsa Teknik Tekstil AS
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/0042—Reinforcements made of synthetic materials
    • 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
    • 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
    • D02G3/48—Tyre cords
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C2009/0071—Reinforcements or ply arrangement of pneumatic tyres characterised by special physical properties of the reinforcements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C2009/0071—Reinforcements or ply arrangement of pneumatic tyres characterised by special physical properties of the reinforcements
    • B60C2009/0085—Tensile strength
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/02—Carcasses
    • B60C9/04—Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship
    • B60C2009/0416—Physical properties or dimensions of the carcass cords
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
    • B60C9/22—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel the plies being arranged with all cords disposed along the circumference of the tyre
    • B60C2009/2252—Physical properties or dimension of the zero degree ply cords
    • 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
    • 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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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Tires In General (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

本发明涉及一种适合用作充气轮胎的轮胎帘线增强件的尼龙6.6纱线，其具有高于12,0 g/dtex的抗拉增强指数（TRI）。

Description

高抗拉尼龙6.6纱线
技术领域
本发明涉及优异地用作充气轮胎的轮胎帘线增强件的高韧度高模量尼龙6.6纱线。
背景技术
众所周知，尼龙6.6纱线具有双弹性抗拉性能，这意味着低初始模量和较高最终模量。低初始模量使得生轮胎中没有任何扭曲的轮胎提升/膨胀工艺成为可能，并且高的最终模量（从低模量到高模量的过渡点之后的模量）提高了高速轮胎的耐久性，作为充气子午线轮胎中的冠带层。
除了双弹性抗拉行为外，抗拉强度（换句话说，韧度）也是非常重要的参数，可提供胎体的高爆裂强度和冠带层中增加的柱塞能量（plunger energy，或为“压穿力”）。增加的断裂强度或韧度还可以使用更薄（更低dtex）帘线，这可以通过减小橡胶厚度来降低滚动阻力。这就是为什么，与规则尼龙6.6纱线相比，作为制备最终热定型和浸渍帘线的原材料的高韧度和高模量纱线具有提高的最终抗拉性能的优势。
EP3469122B1和EP3469123B1涉及一种作为充气轮胎和机械橡胶制品中的增强件的高模量尼龙6.6帘线，但其没有公开6.6尼龙帘线的抗拉强度（韧度）与模量（SASE）之间的平衡以及抗拉强度（韧度）的重要性。
发明内容
本发明的主要目标是尼龙6.6纱线的抗拉增强指数（TRI）高于12,0g/dtex。在制备轮胎帘线增强件时使用高TRI纱线提高了轮胎性能，如轮胎生长、滚动阻力，同时在用作带束层包装上的冠带层时提高了高速耐久性。在胎体应用中，提高了爆裂强度，并能够使用更薄的帘线，其导致重量减轻。
附图说明
图1是本发明背景技术中提到的已知横流淬火和耦合纺丝拉伸设备的示例（现有技术示例）。
图2是本发明与对照A和B的应力-应变曲线。
附图标记引用
图中所有部件均编号，编号引用如下：
1. 入口
2. 纺丝组件
3. 未拉伸长丝
4. 横流冷却空气
5. 腔室
6. 常规纱线
7. 进料辊组件
8. 第一拉伸辊对
9. 管
10. 第二拉伸辊对
11. 松弛辊
12. 放线辊
13. 导纱器
14. 纱线包
在图1中，示出了用于生产高模量尼龙6.6纱线的已知横流淬火和耦合纺丝拉伸设备的示例。在该图中，熔融的聚酰胺在入口（1）被引入到纺丝组件（2）。聚合物作为未拉伸长丝（3）从纺丝组件（2）中挤出，该纺丝组件具有设计成给出所需横截面的孔口。未拉伸长丝（3）在其离开纺丝组件（2）的毛细管后被淬火，以通过横流冷却空气（4）冷却纤维。这些长丝通过在腔室（5）中施加常规的精加工润滑剂而会聚成常规纱线（6），并通过进料辊组件（7）前进。然后将常规纱线（6）馈入第一拉伸辊对（8），然后馈入第二热拉伸辊对（10）。热管（9）或拉伸辅助装置可以用于促进拉伸工艺的第二阶段。常规纱线（6）在牵引辊（11、12）处松弛。牵引辊之一也被称为松弛辊（11）；其可以比拉伸辊组件（10）更低的速度运行，以控制常规纱线（6）的收缩和物理性能的稳定性。另一个辊也被称为放线辊（12），其放松常规纱线（6）的张力，以允许以比常规纱线（6）在拉伸中经历的张力更低的张力卷绕。导纱器（13）将常规纱线（6）放置在纱线包（14）上，并在其上卷绕。上述工艺、设备和方法与现有技术和文献相似，但标准操作条件不同，以生产与热拉伸后松弛度降低的常规纱线不同的高TRI尼龙6.6纱线。
具体实施方式
本发明涉及具有如下定义的高抗拉增强指数（TRI）的高抗拉尼龙6.6纱线：
TRI（g/dtex）=韧度（g/dtex）+7%伸长率下的SASE（g/dtex）
其中：
韧度： 断裂力/线密度（g/dtex）
SASE：规定伸长率下的应力（g/dtex）
LASE：规定伸长率下的荷载。
众所周知，抗拉强度（韧度）和模量（特别是7%伸长率下的应力）（SASE）是两种重要的抗拉性能，其对轮胎性能参数（如高速耐久性、滚动阻力和燃料节省）有显著影响。
为了赋予帘线最终的性能，帘线在高张力和温度下经受浸渍（用于静态和动态粘合）和热定形工艺（3T或热拉伸工艺），以进一步增强分子取向和尺寸稳定性。在相同的3T（时间、张力和温度）条件下，由高TRI尼龙6.6纱线制备的尼龙6.6帘线赋予高于常规尼龙6.6帘线的TRI值。
TRI值高于12,0 g/dtex且同时韧度在9,3 g/dtex与10,5 g/dtex之间的尼龙6.6纱线比具有较低TRI的尼龙6.6纱线更合适。高于12 g/dtex的TRI提供了高模量与高强度之间的平衡。具有高韧度和低模量或低韧度和高模量的规则尼龙6.6纱线不能为最终帘线提供足够的初始强度。
抗拉增强指数（TRI）高于12,0 g/dtex的尼龙6.6纱线具有优化和平衡的韧度和SASE，其适用于充气轮胎中用作胎体和冠带层增强件的轮胎帘线。如果TRI参数高于13,5g/dtex，则由于过度的分子取向，纱线的断裂能或韧性可能太低，长丝可能会变脆。除了最小12,0 g/dtex TRI参数外，最小9,3 g/dtex和最大10,5 g/dtex韧度将是优选的。
根据本发明生产的尼龙6.6纱线的线密度为最小200 dtex和最大3000 dtex。
表1示出了根据本发明生产的尼龙6.6纱线与对照纱线A和B的性能之间的比较：
表1
Figure DEST_PATH_IMAGE001
*条件24℃ ± 1℃, 55% HR ± 2%。
在表1中：对照A是TRI<12,0 g/dtex的规则韧度和规则模量（LASE）纱线，对照B是高韧度，而TRI<12,0 g/dtex和本发明的规则模量（LASE）纱线是高韧度，以及TRI>12,0 g/dtex的高模量（LASE）纱线。
高TRI尼龙6.6纱线用作充气轮胎的轮胎帘线增强件。

Claims (4)

1. 一种适用于充气轮胎的轮胎帘线增强件的尼龙6.6纱线，其特征在于，具有如下定义的抗拉增强指数（TRI）：
TRI（g/dtex）=韧度（g/dtex）+7%伸长率下的应力
其中TRI高于12,0 g/dtex，并且韧度在9,3-10,5 g/dtex之间。
2. 根据权利要求1所述的尼龙6.6纱线，其中所述TRI低于13,5 g/dtex。
3. 根据权利要求1或2所述的尼龙6.6纱线，其中所述纱线具有最小200 dtex和最大3000 dtex的线密度。
4.根据权利要求1至3所述的尼龙6.6纱线，其用作充气轮胎的轮胎帘线增强件。
CN202080102391.1A 2020-06-23 2020-06-23 高抗拉尼龙6.6纱线 Pending CN115702264A (zh)

Applications Claiming Priority (1)

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PCT/TR2020/050538 WO2021262102A1 (en) 2020-06-23 2020-06-23 High tensile nylon 6.6 yarn

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US (1) US20230211635A1 (zh)
JP (1) JP2023537187A (zh)
KR (1) KR20230009931A (zh)
CN (1) CN115702264A (zh)
DE (1) DE112020007349T5 (zh)
WO (1) WO2021262102A1 (zh)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2023665C (en) * 1990-03-22 1999-03-16 Joanne Elizabeth Shaw Bias ply aircraft tire
US5743975A (en) * 1995-03-24 1998-04-28 The Goodyear Tire & Rubber Company Radial medium truck tire with organic polymer reinforced top belt or breaker
EP1047564A1 (en) * 1997-11-19 2000-11-02 THE GOODYEAR TIRE &amp; RUBBER COMPANY Radial medium truck tire with multifilament top belt
US20030155059A1 (en) * 1997-11-19 2003-08-21 Noel Daniel Roger Fernand Radial medium truck tire with multifilament top belt
KR101580352B1 (ko) * 2012-12-27 2015-12-23 코오롱인더스트리 주식회사 하이브리드 섬유 코드 및 그 제조방법
US20140216625A1 (en) * 2013-02-06 2014-08-07 Milliken & Company Pneumatic tire carcass having air blocking stabilizing fabric system
CN108603312A (zh) * 2016-01-22 2018-09-28 科德沙技术纺织品股份公司 高韧度低延展性的尼龙6.6帘线
FR3050401B1 (fr) * 2016-04-25 2018-04-06 Compagnie Generale Des Etablissements Michelin Pneu avion ayant une armature de carcasse a endurance amelioree
MX2017016665A (es) 2016-06-09 2018-07-06 Kordsa Teknik Tekstil As Hilos de nailon 6.6 retorcidos individuales de alto modulo.
EP3469122B1 (en) 2016-06-09 2019-12-11 Kordsa Teknik Tekstil Anonim Sirketi High modulus nylon 6.6 cords

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JP2023537187A (ja) 2023-08-31
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DE112020007349T5 (de) 2023-04-06
WO2021262102A1 (en) 2021-12-30

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