WO2022008502A1 - Courroie dentée - Google Patents

Courroie dentée Download PDF

Info

Publication number
WO2022008502A1
WO2022008502A1 PCT/EP2021/068646 EP2021068646W WO2022008502A1 WO 2022008502 A1 WO2022008502 A1 WO 2022008502A1 EP 2021068646 W EP2021068646 W EP 2021068646W WO 2022008502 A1 WO2022008502 A1 WO 2022008502A1
Authority
WO
WIPO (PCT)
Prior art keywords
tetrapod
zinc oxide
toothed belt
rubber
shaped crystals
Prior art date
Application number
PCT/EP2021/068646
Other languages
German (de)
English (en)
Inventor
Jörg NASS
Original Assignee
Nass, Michelle
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.)
Filing date
Publication date
Application filed by Nass, Michelle filed Critical Nass, Michelle
Publication of WO2022008502A1 publication Critical patent/WO2022008502A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G1/00—Driving-belts
    • F16G1/28—Driving-belts with a contact surface of special shape, e.g. toothed
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L21/00—Compositions of unspecified rubbers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D29/00—Producing belts or bands
    • B29D29/08—Toothed driving belts
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2296—Oxides; Hydroxides of metals of zinc
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L15/00—Compositions of rubber derivatives
    • C08L15/005—Hydrogenated nitrile rubber

Definitions

  • the invention relates to a toothed belt according to the preamble of claim 1.
  • DE 102015 203 914 A1 discloses an elastomeric article with a rubber matrix, including a power transmission belt, with a reinforcement vulcanized into and/or onto the rubber matrix, for example a textile fabric, a metallic thread construction or the like.
  • This reinforcement embedded in the rubber matrix is used to transmit the forces acting on the elastomeric article, since the rubber matrix is usually not sufficiently able to do this due to its elastic behavior.
  • an adhesion system by which the reinforcement can be connected to the rubber matrix.
  • the reinforcement is treated with a before vulcanization
  • Adhesion promoter coated embedded in the nanotetrapods, which protrude at least with several arms from the adhesion promoter layer and engage in the surrounding raw rubber matrix.
  • the integrated and/or vulcanized reinforcement is both the chemical bond formed during vulcanization and the positive interaction of the
  • Nanotetrapods firmly bonded to the surface of the rubber matrix.
  • the rubber composition contains, among other things, zinc oxide whiskers (nanotetrapods made of zinc oxide) in addition to the usual components. According to DE 602005 002 589 T2, the addition of the tetrapods leads to the following effects:
  • EP 1 875 102 B1 discloses a toothed belt with a rubber mixture that can contain nano-zinc oxide tetrapods with a proportion by weight of up to 30%.
  • the use of nano-zinc oxide tetrapods is presented here as disadvantageous.
  • the disadvantages require additional measures. Therefore, the proportion by weight of the nano-zinc oxide tetrapods in the rubber compound is limited to a value between 0% and 30%. In the examples, only materials with a maximum of 10% by weight of nano-zinc oxide tetrapods are described.
  • the power is transmitted by embedded glass or aramid fibers, more rarely by embedded steel cables.
  • the power transmission is achieved by the tetrapod-shaped zinc oxide crystals distributed homogeneously in the rubber mixture.
  • the nano zinc oxide tetrapods (ZnO) are zinc oxide crystals with a size of several nanometers to a few micrometers, i.e. a few thousandths to millionths of a millimeter in size. They are in the form of tetrapods, four rigid arms radiating from a central point. Larger tetrapods of several meters are known as breakwaters to protect the coasts of Sylt or Helgoland, where the arms interlock and thus defy the forces of the sea currents.
  • Nano Zinc Oxide Tetrapods are needle-shaped crystals made from
  • Shape tetrapod shape (four feet)
  • DE 602005 002 589 T2 contains no information on the tensile strength of the rubber mixture provided with the tetrapods. The person skilled in the art does not find any information in this citation on hardness and notch strength, which are also important properties of toothed belts. The person skilled in the art would therefore put this DE 602005 002 589 T2 aside.
  • the diameter of the outer sphere of the tetrapod-shaped zinc oxide crystals is between 1 and 100 nanometers
  • the rubber mixture contains 40 to 50% by weight of tetrapod-shaped crystals
  • the rubber compound also contains antioxidants, zinc oxide, silica, oil separately or in combination.
  • nano-zinc oxide tetrapods from Tianjin YR Chemspec Co., Ltd. were used. used.
  • base rubber HNBR Hydrophiltened Acrylonitrile Butadiene Rubber
  • Vulcanization test (requirement: 150 °C for up to 300 min)
  • Increasing the content of nano zinc oxide tetrapods increases the possible torque and decreases the vulcanization time. If a possible torque of 30 dNm is desired, the vulcanization time in the column for the underlined torque specification is sufficient.
  • the rubber material is particularly suitable for use in toothed belts in motor vehicles. 2.
  • a strip of rubber is pressed into a dumbbell shape and the load is measured by the elongation.
  • the specification "100% modular" means a tensile load (tensile strength) at 100% elongation.
  • nano-zinc oxide tetrapods results in higher tensile strength.

Landscapes

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

Abstract

L'invention concerne une courroie dentée comprenant un composé de caoutchouc contenant de l'oxyde de zinc qui se présente sous la forme de cristaux tétrapodiques, les cristaux tétrapodiques étant répartis de manière homogène dans le composé de caoutchouc. Selon l'invention, le composé de caoutchouc contient plus de 30 % en poids des cristaux tétrapodiques.
PCT/EP2021/068646 2020-07-10 2021-07-06 Courroie dentée WO2022008502A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102020118245 2020-07-10
DE102020118245.7 2020-07-10
DE102020122158.4A DE102020122158B3 (de) 2020-07-10 2020-08-25 Zahnriemen
DE102020122158.4 2020-08-25

Publications (1)

Publication Number Publication Date
WO2022008502A1 true WO2022008502A1 (fr) 2022-01-13

Family

ID=74495216

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2021/068646 WO2022008502A1 (fr) 2020-07-10 2021-07-06 Courroie dentée

Country Status (2)

Country Link
DE (1) DE102020122158B3 (fr)
WO (1) WO2022008502A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0325797A1 (fr) * 1987-12-29 1989-08-02 Matsushita Electric Industrial Co., Ltd. Trichites de l'oxyde de zinc présentant une forme cristalline de type tétrapode et méthode pour les préparer
JPH0379836A (ja) * 1989-08-18 1991-04-04 Yunitsuta Kk 歯付ベルト
EP1875102A1 (fr) 2005-04-26 2008-01-09 Mitsuboshi Belting Ltd. Courroie de transmission de puissance pour transmission de charges élevées
DE602005002589T2 (de) 2004-06-21 2008-06-26 Sumitomo Rubber Industries Ltd., Kobe Kautschukzusammensetzung für Reifen und Luftreifen, der diese verwendet
EP2782103A1 (fr) 2013-03-18 2014-09-24 Schwering & Hasse Elektrodraht GmbH Fil émaillé
DE102013104195A1 (de) 2013-04-25 2014-10-30 Osram Opto Semiconductors Gmbh Optoelektronisches Bauelement und Verfahren zu seiner Herstellung
DE102015203914A1 (de) 2015-03-05 2016-09-08 Contitech Luftfedersysteme Gmbh Elastomerer Artikel

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0325797A1 (fr) * 1987-12-29 1989-08-02 Matsushita Electric Industrial Co., Ltd. Trichites de l'oxyde de zinc présentant une forme cristalline de type tétrapode et méthode pour les préparer
JPH0379836A (ja) * 1989-08-18 1991-04-04 Yunitsuta Kk 歯付ベルト
DE602005002589T2 (de) 2004-06-21 2008-06-26 Sumitomo Rubber Industries Ltd., Kobe Kautschukzusammensetzung für Reifen und Luftreifen, der diese verwendet
EP1875102A1 (fr) 2005-04-26 2008-01-09 Mitsuboshi Belting Ltd. Courroie de transmission de puissance pour transmission de charges élevées
EP1875102B1 (fr) * 2005-04-26 2013-03-20 Mitsuboshi Belting Ltd. Courroie de transmission de puissance pour transmission de charges elevees
EP2782103A1 (fr) 2013-03-18 2014-09-24 Schwering & Hasse Elektrodraht GmbH Fil émaillé
DE102013104195A1 (de) 2013-04-25 2014-10-30 Osram Opto Semiconductors Gmbh Optoelektronisches Bauelement und Verfahren zu seiner Herstellung
DE102015203914A1 (de) 2015-03-05 2016-09-08 Contitech Luftfedersysteme Gmbh Elastomerer Artikel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
XIN JIN ET AL: "Study of Tetrapodal ZnO-PDMS Composites: A Comparison of Fillers Shapes in Stiffness and Hydrophobicity Improvements", PLOS ONE, vol. 9, no. 9, 10 September 2014 (2014-09-10), pages e106991, XP055745103, DOI: 10.1371/journal.pone.0106991 *

Also Published As

Publication number Publication date
DE102020122158B3 (de) 2021-02-25

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