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CN106536219B - 包括吸音用泡沫材料的轮胎 - Google Patents

包括吸音用泡沫材料的轮胎 Download PDF

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CN106536219B
CN106536219B CN201580039655.2A CN201580039655A CN106536219B CN 106536219 B CN106536219 B CN 106536219B CN 201580039655 A CN201580039655 A CN 201580039655A CN 106536219 B CN106536219 B CN 106536219B
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foamed material
tire according
inner cavity
tire
range
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CN106536219A (zh
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B·M·塞基
P·阿戈雷蒂
米歇尔·阿穆里
J·豪斯
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Bridgestone Corp
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    • 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
    • B60C19/00—Tyre parts or constructions not otherwise provided for
    • B60C19/002—Noise damping elements provided in the tyre structure or attached thereto, e.g. in the tyre interior
    • 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
    • B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
    • B60C1/0008—Compositions of the inner liner
    • 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
    • B60C5/00—Inflatable pneumatic tyres or inner tubes
    • B60C5/002—Inflatable pneumatic tyres or inner tubes filled at least partially with foam material
    • 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
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/34—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives
    • C08G65/38—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols
    • C08G65/40—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols (I) and other compounds (II), e.g. OH-Ar-OH + X-Ar-X, where X is halogen atom, i.e. leaving group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • 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
    • C08G2110/00—Foam properties
    • C08G2110/0008—Foam properties flexible
    • 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
    • C08G2110/00—Foam properties
    • C08G2110/0041—Foam properties having specified density
    • C08G2110/005—< 50kg/m3
    • 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
    • C08G2350/00—Acoustic or vibration damping material
    • 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
    • C08G2380/00—Tyres
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2205/00—Foams characterised by their properties
    • C08J2205/04—Foams characterised by their properties characterised by the foam pores
    • C08J2205/044—Micropores, i.e. average diameter being between 0,1 micrometer and 0,1 millimeter
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2205/00—Foams characterised by their properties
    • C08J2205/06—Flexible foams
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
    • C08J2361/04—Condensation polymers of aldehydes or ketones with phenols only
    • C08J2361/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Tires In General (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

一种轮胎，其包括：适用于确保在包含于胎体内腔中的空气的压力下密封的层，和安置在所述内腔内的、以天然或合成来源的多酚化合物的缩聚物为基础的吸音用泡沫材料。优选地，所述泡沫材料以类黄酮鞣酸类为基础。

Description

包括吸音用泡沫材料的轮胎
技术领域
本发明涉及包括吸音用泡沫材料的轮胎。更具体地，本发明涉及一种轮胎，其包括安置在由非透气层覆盖且填充有加压空气的内腔中的泡沫材料。
背景技术
由轮胎的内腔内部的在压力下的空气振动产生的共振腔声音视为由运行中的轮胎产生的噪声之一。为了减少这种噪声，长久以来已知以共振腔声音由多孔材料吸收的方式使用施加至轮胎的内腔的非渗透性层表面的多孔材料。
为了该目的而最通常用的多孔材料是聚氨酯。然而，尽管在吸音方面具有令人满意的性能，但聚氨酯系泡沫材料遭受容易燃烧的缺点。
因此感到需要使用甚至在吸音方面具有相同的性能，但不遭受上述缺点的其它泡沫材料来代替该聚氨酯系泡沫材料。
本申请人惊讶地发现，聚氨酯系泡沫材料可以用以天然或合成来源的多酚缩聚物为基础的泡沫材料来代替，该泡沫材料证明为在吸音方面正好有效，但不具有上述聚氨酯系材料的固有缺点。
发明内容
本发明的主题是一种轮胎，其包括：适用于确保在包含于胎体内腔中的空气的压力下密封的非渗透性层，和安置在所述内腔内的泡沫材料；所述轮胎的特征在于，所述泡沫材料以多酚化合物的缩聚物为基础。
优选地，所述泡沫材料以类黄酮鞣酸类(flavonoid tannins)为基础。
优选地，所述泡沫材料从类黄酮鞣酸类、糠醇、发泡剂和催化剂开始制备。
优选地，所述泡沫材料是完全无甲醛的。
不存在甲醛确保了泡沫材料具有与有毒物质的减少使用和更大的可挠性相关的优势。
优选地，所述泡沫材料具有范围为0.01g/cm3至0.25g/cm3的密度。
优选地，所述泡沫材料占有范围为内腔的体积的0.1％至100％的体积。更优选地，所述泡沫材料具有范围为10mm至200mm的厚度和范围为内腔的宽度的10％至100％的宽度。
优选地，所述泡沫材料占有范围为内腔的体积的0.4％至20％的体积。更优选地，所述泡沫材料具有范围为20mm至30mm的厚度和范围为内腔的宽度的20％至40％的宽度。
优选地，所述泡沫材料安置在轮胎内腔的非渗透性层的内表面上。
优选地，所述泡沫材料可以以环形(toroid)形式、或长度等于非渗透性层的长度的条状形式、或以覆盖非渗透性层的整个长度的单节组装形式安置在腔室中。
具体实施方式
在以下通过非限制性的实施例描述实施方案。
本申请人已经在通常用于轮胎中的聚氨酯系泡沫材料与根据本发明的以类黄酮鞣酸类为基础的泡沫材料之间关于吸音和易燃性方面进行了比较。
聚氨酯系泡沫材料在商品名Metzonor 023下销售并且由Metzler Schaum GMBH生产。
根据本发明的以类黄酮鞣酸类为基础的泡沫材料通过不使用甲醛的合成反应来生产，并且具有0.028g/cm3的表观密度和250微米的平均泡孔直径。
吸音试验根据ISO 10534-2标准在范围为200至2000Hz的频率下进行；并且易燃性试验通过将材料与温度为约500℃的火焰接触并且计算材料的燃烧变为自维持(self-sustaining)所必需的接触时间来进行。
从吸音试验中，观察到的是，两种泡沫材料在吸音方面的性能相同。
从易燃性试验中，观察到的是，聚氨酯系泡沫材料仅需要与火焰接触两秒来继续自维持燃烧，而根据本发明的泡沫材料即使与火焰的接触维持长时间也不显示自维持燃烧现象。
在进行了吸音试验之后，老化试验在70℃下在烘箱中进行三天。表明了在相对于未老化样品的吸音系数的百分比变化方面的结果。形成本发明主题的泡沫在老化前后显示相同的吸收系数，而参考泡沫显示在老化后该系数10％的降低。
已观察到的是，如果在不存在甲醇下进行，该泡沫材料对于相同的能量吸收具有更大的可挠性。因此，因为甲醛是有毒化合物，不存在甲醛不仅承担了安全的优势，也确保了根据本发明的泡沫材料的更有效的使用。如对于本领域技术人员将会立即领悟的，泡沫材料的可挠性越大，胎体的内腔内的配置将越稳当、越有效。事实上，泡沫材料的更高的可挠性可以确保：在其操作过程中不发生破坏，以及其更有效的配置在胎体的内腔内。
总之，与确保比得上聚氨酯系泡沫材料的在吸音方面的性能一起，根据本发明的用于轮胎中的泡沫材料具有以下优势：具有高的阻燃性、高水平的难熔性以及更高的耐老化性。
另外，为了更加完全地评价本发明的优势，应该认为的是，根据本发明的用于轮胎中的泡沫材料可以从天然来源的原料并且不使用甲醛(分类为具有2级致癌性与3级急性毒性)来获得。再一次，应该强调的是，除了确保安全方面的优势以外，不存在甲醛还多么确保与上述优势关联的相关泡沫材料的更高的可挠性。

Claims (11)

1.一种轮胎，其包括：适用于确保在包含于胎体内腔中的空气的压力下密封的非渗透性层，和安置在所述内腔内的泡沫材料；所述轮胎的特征在于，所述泡沫材料以多酚化合物的缩聚物为基础。
2.根据权利要求1所述的轮胎，其特征在于，所述泡沫材料以类黄酮鞣酸类为基础。
3.根据权利要求2所述的轮胎，其特征在于，所述泡沫材料从类黄酮鞣酸类、糠醇、发泡剂和催化剂开始制备。
4.根据权利要求1所述的轮胎，其特征在于，所述泡沫材料是无甲醛的。
5.根据权利要求1所述的轮胎，其特征在于，所述泡沫材料具有范围为0.01g/cm3至0.25g/cm3的密度。
6.根据权利要求1所述的轮胎，其特征在于，所述泡沫材料占有范围为所述内腔的体积的0.1％至100％的体积。
7.根据权利要求6所述的轮胎，其特征在于，所述泡沫材料具有范围为10mm至200mm的厚度和范围为所述内腔的宽度的10％至100％的宽度。
8.根据权利要求1所述的轮胎，其特征在于，所述泡沫材料占有范围为所述内腔的体积的0.4％至20％的体积。
9.根据权利要求8所述的轮胎，其特征在于，所述泡沫材料具有范围为20mm至30mm的厚度和范围为所述内腔的宽度的20％至40％的宽度。
10.根据权利要求1所述的轮胎，其特征在于，所述泡沫材料安置在所述轮胎的内腔的非渗透性层表面上。
11.根据权利要求1所述的轮胎，其特征在于，所述泡沫材料以环形形式、或长度等于所述非渗透性层的长度的条状形式、或以覆盖所述非渗透性层的整个长度的单节组装形式安置在腔室中。
CN201580039655.2A 2014-07-21 2015-07-21 包括吸音用泡沫材料的轮胎 Active CN106536219B (zh)

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PCT/IB2015/055525 WO2016012946A1 (en) 2014-07-21 2015-07-21 Tyre comprising a foam material for sound absorption

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US12168374B2 (en) 2016-11-17 2024-12-17 Bridgestone Americas Tire Operations, Llc Pneumatic tire having dampening element adhered to air barrier layer

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CN106536219A (zh) 2017-03-22
EP3172066A1 (en) 2017-05-31
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EP3172066B1 (en) 2017-11-29
US20170157996A1 (en) 2017-06-08
JP2017522222A (ja) 2017-08-10

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