CN113242801A - 轮胎增强用帘线织物 - Google Patents

轮胎增强用帘线织物 Download PDF

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Publication number
CN113242801A
CN113242801A CN201880099284.0A CN201880099284A CN113242801A CN 113242801 A CN113242801 A CN 113242801A CN 201880099284 A CN201880099284 A CN 201880099284A CN 113242801 A CN113242801 A CN 113242801A
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cords
warp
dipped
tire
cord
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Y·艾耶尔德兹
S·菲丹
C·伊赫蒂亚尔
B·A·梅尔托尔
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Kordsa Teknik Tekstil AS
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    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
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Abstract

本发明涉及轮胎增强织物，其由经过预浸胶和热固的单股帘线作为经线与纬线材料结合在一起织造而成，以及包括轮胎增强织物的充气轮胎，其中轮胎10增强织物通过将单独浸胶的帘线作为经线材料和多根任何种类的纬线材料织造而获得。

Description

轮胎增强用帘线织物
技术领域
本发明涉及轮胎增强织物及其制备方法，所述轮胎增强织物通过将单独浸胶的帘线材料与纬线材料一起织造而获得。本发明还涉及包括至少一种增强织物的充气轮胎，所述增强织物由单独浸胶的帘线材料与纬线材料获得。
背景技术
在用于增强充气轮胎的帘线织物中，重要的是，帘线具有足够的拉伸性质和在帘线与橡胶之间的良好粘合性，这是在使用中在重复应力下的抗性所需的。与橡胶的不良粘合性导致所谓的帘布层分离，并且由于反复弯曲(cyclic bending)导致的帘线劣化被称为疲劳。
众所周知的实践是在织造过程之后将坯布帘线织物(greige cord fabrics)浸胶和热固(heat-set)以提供足够的粘合性和所需的物理性质。
轮胎胎体和冠带帘布层中的帘布层刚度(对伸长和蠕变的抗性)由帘线织物的LASE值、线密度和epdm (每分米的经纱数，织物中的经纱计数)控制。高epdm帘线织物显示出一定程度上的粘合性浸胶液成带(adhesive dip webbing)(在帘线之间形成粘合性浸胶液膜)问题，这防止了在辊压(calendering)和固化过程期间橡胶在单独的帘线之间渗透。在高速条件下，这样有限的橡胶渗透会由于早期帘布层分离而降低轮胎耐久性。
另一方面，在织造过程之后进行浸胶和热固的常规帘线织物在交叠点(cross-over points)处具有一些与纬线的接触点。在这些接触点处的粘合性浸胶液含量非常低，并且可能在动态条件下引发早期裂纹萌生。
发明目的
本发明的主要目的是消除现有技术中的上述缺点。
本发明的另一个目的是增加橡胶与帘线织物之间的粘合性，以防止在辊压和固化过程期间的帘布层分离，提供高的帘布层刚度并防止纬向线的空白点。
本发明的另一个目的是提供获得这种增强材料的方法。
具体实施方式
本发明涉及增强织物及其获得方法，所述增强织物包括作为经线材料与任何种类的纬线材料织造在一起的单独浸胶和热固的单股帘线。这意味着，首先将优选地为(多个)加捻纱线形式的单股经向帘线浸胶和热固，然后将多根所述浸胶和热固的帘线与纬线材料织造在一起作为充气轮胎用增强织物。所述帘线的捻度水平在150-700 tpm之间。如果捻度水平小于150 tpm，则压缩疲劳性能降低。如果捻度水平高于700 tpm，则断裂强度和模量增加。
本发明还涉及包括轮胎部件的充气轮胎，所述轮胎部件具有通过将单独浸胶的帘线作为经线进行织造来制备的轮胎增强织物。
这种轮胎增强织物具有三个主要优点，例如本发明的帘线织物不具有在相邻帘线之间的粘合性浸胶液成带问题，因此橡胶可以在辊压和固化过程期间容易地在相邻帘线之间渗透，这增强了动态条件下的帘布层分离抗性。其次，本发明的轮胎增强织物提供了在没有观察到任何粘合性浸胶液成带问题的情况下可能实现的非常高的帘线密度(epdm)。当帘线密度增加时，帘线与帘线的距离减小(低铆接区域(rivet area))，但同时，这意味着更高的每分米帘线数量并且提供了高的帘布层刚度，这是抵抗轮胎胀大(tire growth)所需要的。本发明的另一个优点是，根据本发明的织物中的每根单股帘线的表面均匀地覆盖有粘合性浸胶液，而没有任何空白点或与纬向线的交叠点。
根据本发明，为了具有增加的拉伸强度和刚度，帘线之间的帘线与帘线的距离(铆接区域)被调节为小于0.3 mm且大于0.1 mm。在增强织物中的所述单独浸胶的经向帘线选自以下材料组中的至少一种或其组合：尼龙6.6、尼龙6、聚酯(PET)、聚酮(POK)和芳族聚酰胺/尼龙混合帘线。
本发明的所述纬线材料选自浸胶或未浸胶的棉、聚酰胺、聚乙烯、芳族聚酰胺、聚酮类型材料或其组合。
根据本发明的所述帘线的总线密度高于300 dtex且低于10,000 dtex。如果所述帘线的总线密度小于300 dtex，则不能实现所需的刚度值。如果总线密度大于10000 dtex，则帘线厚度增加，并且因此在橡胶增强应用期间需要额外量的橡胶以粘附在帘线上，并且取决于该额外量的橡胶，滚动阻力不利地增加。
根据本发明的所述增强织物可以以条带形式用作冠带帘布层，所述冠带帘布层以与充气子午线轮胎的赤道面成0至5°的形式螺旋地缠绕在带束层组合件(belt package)上。
根据本发明，将所述帘线浸入到含水浸胶液溶液中，所述含水浸胶液溶液优选包含本领域技术人员已知的合适的反应物以获得包含选自聚氨酯-、环氧-、聚丙烯酸酯-、多异氰酸酯-、硅烷-、聚酰胺-、天然橡胶胶乳或苯乙烯-丁二烯橡胶胶乳、间苯二酚-和甲醛-基材料的一种或多种材料的浸胶层。
在本发明的一个实施方案中，通过使用尼龙6.6作为经向帘线获得，所述经向帘线具有1400/2 dtex总线密度值、350/350 tpm捻度水平、120 epdm、帘线规格或直径 = 0.65mm并经过单独浸胶和热固。通过将所述单独帘线与纬线材料一起织造而获得轮胎帘线织物，并且基于以下计算将帘线与帘线的距离(铆接区域)调整为0.18 mm：
织物中相邻帘线之间的帘线与帘线的距离= (100-epdm×帘线直径)/epdm
Epdm：每分米经线数，每分米帘线的数量。
TPM：捻度、每米捻回数
本发明还提出了用于获得轮胎增强织物的方法，所述轮胎增强织物包括单独浸胶的帘线和纬线材料。本发明的方法包括以下步骤：
- 通过将每根单股帘线浸入浸胶溶液中来预处理每根单股帘线，并获得单独浸胶的帘线，
- 干燥所述单独浸胶的帘线，
以及将所述单独浸胶的帘线作为经线材料与多根纬向纱线一起织造。
本发明的方法的特征在于，所述单独浸胶的经向帘线彼此之间的距离在0.10-0.30 mm之间。
本发明的方法的特征在于，所述单独浸胶的经向帘线具有在300 dtex - 10,000dtex之间的总线密度。
本发明的方法的特征在于，所述单独浸胶的经向帘线具有至少150 tpm且最大700tpm的捻度水平。
本发明的方法的特征在于，所述单独浸胶的经向帘线选自以下材料中的至少一种：聚酰胺、聚乙烯、芳族聚酰胺、聚酮(POK)或芳族聚酰胺/尼龙混合帘线。
本发明的方法的特征在于，所述纬向纱线选自浸胶或未浸胶的棉、聚酰胺、聚乙烯、芳族聚酰胺、聚酮类型材料或其组合。

Claims (11)

1.轮胎增强织物，其通过将单独浸胶的帘线作为经线进行织造来制备，其中所述经线的特征在于，所述单独浸胶的经向帘线各自之间的距离小于0.3 mm且大于0.10 mm。
2.根据权利要求1所述的轮胎增强织物，其特征在于，所述单独浸胶的经向帘线具有至少150 tpm且最大700 tpm的捻度水平。
3.根据权利要求1所述的轮胎增强织物，其特征在于，所述单独浸胶的经向帘线具有在300 dtex - 10,000 dtex之间的总线密度。
4.根据前述权利要求所述的轮胎增强织物，其特征在于，所述单独浸胶的经向帘线选自以下材料中的至少一种：聚酰胺、聚乙烯、芳族聚酰胺、聚酮(POK)或芳族聚酰胺/尼龙混合帘线。
5.根据前述权利要求所述的轮胎增强织物
其特征在于，所述纬向纱线选自浸胶或未浸胶的棉、聚酰胺、聚乙烯、芳族聚酰胺、聚酮类型材料或其组合。
6.用于获得具有单独浸胶的帘线的轮胎增强织物的方法，其特征在于，所述方法包括以下步骤：
通过将每根单股帘线浸入浸胶溶液中来预处理所述每根单股帘线，并获得单独浸胶的帘线，
干燥所述单独浸胶的帘线，
以及将所述单独浸胶的帘线作为经线材料与多根纬向纱线一起织造。
7.根据权利要求6所述的方法，其特征在于，所述单独浸胶的经向帘线彼此之间的距离在0.10-0.30 mm之间。
8.根据权利要求6所述的方法，其特征在于，所述单独浸胶的经向帘线具有在300 dtex- 10,000 dtex之间的总线密度。
9.根据权利要求6所述的方法，其特征在于，所述单独浸胶的经向帘线具有至少150tpm且最大700 tpm的捻度水平。
10.根据前述权利要求所述的方法，其特征在于，所述单独浸胶的经向帘线选自以下材料中的至少一种：聚酰胺、聚乙烯、芳族聚酰胺、聚酮(POK)或芳族聚酰胺/尼龙混合帘线。
11.根据前述权利要求所述的方法，其特征在于，所述纬向纱线选自浸胶或未浸胶的棉、聚酰胺、聚乙烯、芳族聚酰胺、聚酮类型材料或其组合。
CN201880099284.0A 2018-11-06 2018-12-18 轮胎增强用帘线织物 Pending CN113242801A (zh)

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