WO2021159885A1 - Composition à faible odeur de caoutchouc de carcasse en semi-acier - Google Patents

Composition à faible odeur de caoutchouc de carcasse en semi-acier Download PDF

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Publication number
WO2021159885A1
WO2021159885A1 PCT/CN2020/141866 CN2020141866W WO2021159885A1 WO 2021159885 A1 WO2021159885 A1 WO 2021159885A1 CN 2020141866 W CN2020141866 W CN 2020141866W WO 2021159885 A1 WO2021159885 A1 WO 2021159885A1
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WO
WIPO (PCT)
Prior art keywords
odor
parts
low
rubber
rubber composition
Prior art date
Application number
PCT/CN2020/141866
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English (en)
Chinese (zh)
Inventor
王�锋
李先业
庄儒彬
仇培超
李洪兰
王慧
韩绍楠
邢涛
Original Assignee
山东玲珑轮胎股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 山东玲珑轮胎股份有限公司 filed Critical 山东玲珑轮胎股份有限公司
Publication of WO2021159885A1 publication Critical patent/WO2021159885A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L7/00—Compositions of natural rubber
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend

Definitions

  • the invention relates to a low-odor semi-steel carcass rubber composition.
  • the trunk is connected to the interior space of the car.
  • the odor emitted by the spare tire will be emitted in the car, which will affect the health of passengers.
  • CN105860168A discloses an environmentally friendly low-odor nitrile rubber composition and a preparation method, which adds a certain deodorant SW120 to the nitrile rubber , And using aliphatic hydrocarbon ester BXA-R as plasticizer, the nitrile rubber product prepared not only has excellent physical and mechanical properties, but also has no pungent odor.
  • CN108276626A discloses a low-odor tire compound and its preparation method, which adds a certain amount of polyethylene glycol during the compound preparation process. , Produce moisture during high-temperature processing, which is conducive to the discharge of small molecule volatiles, thereby reducing the odor level of the rubber compound.
  • CN105860168A uses a deodorant that can reduce the odor of the rubber.
  • This kind of auxiliary is not easy to disperse when the rubber is mixed, and is easy to agglomerate, which affects the performance of the rubber and the appearance of the finished tire.
  • polyethylene glycol is added to the rubber compound, which is easy to generate water vapor and entrain other small molecule volatiles to be discharged, thereby aggravating the VOC emission problem of the factory.
  • the present application provides a low-odor semi-steel carcass rubber composition.
  • the rubber composition has low odor.
  • a low-odor semi-steel carcass rubber composition The raw material components are calculated in parts by weight, including: 55-100 parts of natural rubber SCR5#, 1-45 parts of styrene and butadiene copolymer material, and 20-80 parts Reinforcing filler, 2-30 parts of environmentally friendly aromatic oil, 1-8 parts of sulfur, 0.5-3.5 parts of accelerator.
  • the styrene content in the styrene and butadiene copolymer material is within 0-40%, the Tg point is between -10°C and -85°C, and the Mooney viscosity ML1+4 (100°C) is within 39-49.
  • the styrene content in the styrene and butadiene copolymer material is within 0-40%, the Tg point is between -10°C and -85°C, and the Mooney viscosity ML1+4 (100°C) is within 39-49.
  • the accelerator is a sulfenamide accelerator CBS.
  • the invention uses 5# natural rubber with fewer impurities and lower odor instead of the heavier natural rubber and synthetic rubber mixture.
  • 5# natural rubber has less impurities, fewer volatile small molecules, and low odor; it uses lower odor
  • Sulfonamide accelerator CBS replaces accelerator TBBS.
  • accelerator CBS When accelerator CBS is vulcanized, it will produce cyclohexylamine. Its boiling point is about 134.5°C. It has low saturated vapor pressure in the air, is not easy to volatilize, and has a small smell.
  • accelerator TBBS When accelerator TBBS is vulcanized, it will produce tert-butylamine. , Its boiling point is about 45°C, it is volatile, and its volatility and smell are higher than that of accelerator CBS.
  • the invention reduces the amount of resorcinol-formaldehyde resin to reduce the content of unreacted resorcinol small molecules in the rubber compound, thereby reducing the smell of the rubber compound.
  • the mixing of the rubber filling material can be accomplished by a method known to those skilled in the rubber mixing field. For example, under normal circumstances, mixing is carried out in at least two stages, namely at least one non-productive mixing stage and one productive mixing stage. Filler and rubber are mixed in one or more non-productive mixing stages.
  • the preparation process adopts two separate feeding and mixing stages, namely a non-productive mixing stage and a productive mixing stage.
  • a non-productive mixing stage mixing is carried out for about 2-3 minutes until the rubber temperature reaches 140°C, which is complete.
  • the mixing time in the productive mixing stage is the time for the rubber temperature to reach 115°C.
  • Comparative Example This rubber composition is referred to as Comparative Example, Example 1 and Example 2 herein.
  • the comparative example is used as a comparative sample here, that is, no optimized rubber material ratio is used in the rubber composition.
  • the odor level refers to the internal test method, the lower the result value, the better.
  • the odor test method is carried out as follows:
  • Example 1 and Example 2 can effectively reduce the odor of the rubber compound.
  • the reason is that materials with low content of small molecules are used in the tire rubber, and the temperature of the rubber is relatively high during the vulcanization process. Some small molecules are volatilized, and the content of small molecules remaining in the tire is reduced, which reduces the smell of the rubber. .

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L'invention concerne une composition à faible odeur de caoutchouc de carcasse en semi-acier. Les constituants de matière première correspondants comprennent, en parties en poids : 55-100 parties de caoutchouc naturel SCR 5, 1-45 parties d'un matériau copolymère de styrène et de butadiène, 20-80 parties d'une charge de renforcement, 2-30 parties d'une huile hydrocarbonée aromatique respectueuse de l'environnement, 1-8 parties de soufre et 0,5-3,5 parties d'un accélérateur. Par l'utilisation du caoutchouc naturel 5, qui présente moins d'impuretés et une odeur moindre, au lieu d'un caoutchouc naturel et d'un mélange de caoutchouc synthétique présentant une odeur plus lourde et en outre par l'utilisation d'un accélérateur de sulfénamide CBS, qui présente une odeur moindre, au lieu de l'accélérateur TBBS, la composition de caoutchouc présente une faible odeur.
PCT/CN2020/141866 2020-02-11 2020-12-30 Composition à faible odeur de caoutchouc de carcasse en semi-acier WO2021159885A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010086958.2A CN111205516A (zh) 2020-02-11 2020-02-11 一种低气味半钢胎体橡胶组合物
CN202010086958.2 2020-02-11

Publications (1)

Publication Number Publication Date
WO2021159885A1 true WO2021159885A1 (fr) 2021-08-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/141866 WO2021159885A1 (fr) 2020-02-11 2020-12-30 Composition à faible odeur de caoutchouc de carcasse en semi-acier

Country Status (2)

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CN (1) CN111205516A (fr)
WO (1) WO2021159885A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111205516A (zh) * 2020-02-11 2020-05-29 山东玲珑轮胎股份有限公司 一种低气味半钢胎体橡胶组合物
CN113004623A (zh) * 2021-01-28 2021-06-22 山东玲珑轮胎股份有限公司 一种汽车轮胎气密层橡胶组合物及其制备方法和应用

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105218901A (zh) * 2015-10-28 2016-01-06 四川远星橡胶有限责任公司 轮胎胎面混合物及其制成的轮胎胎面及轮胎
CN105924691A (zh) * 2016-06-06 2016-09-07 四川远星橡胶有限责任公司 应用于泥地路况的车胎面胶料及其制备方法
CN106220930A (zh) * 2016-08-24 2016-12-14 四川远星橡胶有限责任公司 一种环保、阻燃的智能平衡车胎
EP3156394A1 (fr) * 2014-06-10 2017-04-19 Mitsubishi Gas Chemical Company, Inc. Aminoganidine d'alkylidène et sel de celle-ci, composition de modificateur, caoutchouc modifié pour pneu, composition de caoutchouc pour pneu, et pneu
CN108727648A (zh) * 2018-06-05 2018-11-02 江苏骆氏减震件有限公司 一种天然橡胶-丁苯橡胶组合物材料、其制备方法和应用
JP2019172712A (ja) * 2016-08-23 2019-10-10 三菱瓦斯化学株式会社 ゴム組成物及びタイヤ
CN111205516A (zh) * 2020-02-11 2020-05-29 山东玲珑轮胎股份有限公司 一种低气味半钢胎体橡胶组合物

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3156394A1 (fr) * 2014-06-10 2017-04-19 Mitsubishi Gas Chemical Company, Inc. Aminoganidine d'alkylidène et sel de celle-ci, composition de modificateur, caoutchouc modifié pour pneu, composition de caoutchouc pour pneu, et pneu
CN105218901A (zh) * 2015-10-28 2016-01-06 四川远星橡胶有限责任公司 轮胎胎面混合物及其制成的轮胎胎面及轮胎
CN105924691A (zh) * 2016-06-06 2016-09-07 四川远星橡胶有限责任公司 应用于泥地路况的车胎面胶料及其制备方法
JP2019172712A (ja) * 2016-08-23 2019-10-10 三菱瓦斯化学株式会社 ゴム組成物及びタイヤ
CN106220930A (zh) * 2016-08-24 2016-12-14 四川远星橡胶有限责任公司 一种环保、阻燃的智能平衡车胎
CN108727648A (zh) * 2018-06-05 2018-11-02 江苏骆氏减震件有限公司 一种天然橡胶-丁苯橡胶组合物材料、其制备方法和应用
CN111205516A (zh) * 2020-02-11 2020-05-29 山东玲珑轮胎股份有限公司 一种低气味半钢胎体橡胶组合物

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