CN107672388A - Pneumatic tire and its sidewall conductive layer - Google Patents

Pneumatic tire and its sidewall conductive layer Download PDF

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Publication number
CN107672388A
CN107672388A CN201710884734.4A CN201710884734A CN107672388A CN 107672388 A CN107672388 A CN 107672388A CN 201710884734 A CN201710884734 A CN 201710884734A CN 107672388 A CN107672388 A CN 107672388A
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CN
China
Prior art keywords
conductive layer
sidewall
sidewall conductive
pneumatic tire
tire
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201710884734.4A
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Chinese (zh)
Inventor
罗才仁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cheng Shin Tire and Rubber China Co Ltd
Original Assignee
Cheng Shin Tire and Rubber China Co Ltd
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 Cheng Shin Tire and Rubber China Co Ltd filed Critical Cheng Shin Tire and Rubber China Co Ltd
Priority to CN201710884734.4A priority Critical patent/CN107672388A/en
Publication of CN107672388A publication Critical patent/CN107672388A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • B60C19/08—Electric-charge-dissipating arrangements
    • B60C19/086—Electric-charge-dissipating arrangements using conductive sidewalls

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention discloses a kind of pneumatic tire and sidewall conductive layer, sidewall conductive layer is used to be arranged in the sidewall structure (5) of pneumatic tire, and the basic rubber of the sidewall conductive layer contains carbon black and carbon nanomaterial；The BET specific surface area of the carbon black is 100m2/ below g.Sidewall conductive layer provided by the invention, by reducing the BET specific surface area of carbon black, is 100m2/ below g, the dispersibility of carbon black is effectively increased, reduce its cohesion trend, reduce the performance of packing element frictional heat so that rubber hysteresis quality reduces, and then effectively reduces the rolling resistance of tire；Also, by adding carbon nanomaterial, it is ensured that the electric conductivity of sidewall conductive layer.

Description

Pneumatic tire and its sidewall conductive layer
Technical field
The present invention relates to tire equipment technical field, more particularly to a kind of pneumatic tire and its sidewall conductive layer.
Background technology
With the enhancing of social environment consciousness, tire, especially pneumatic tire, low-rolling-resistance and environment are increasingly pursued Friendly.And this trend is mainly realized by two paths：Improve content and the reduction of inorganic filler (especially silica) The content of hydro carbons imperfect combustion or cracking residue (especially carbon black).But thus also bring tire electrostatic discharge capacity Reduction problem.
At present, increasing carcass material uses low hysteresis rubber, especially reduces black-reinforced grade and content Means.But it can also reduce its electric conductivity so that tire electrostatic discharge capacity reduces.
Therefore, rubber hysteresis quality how is reduced, it is ensured that electric conductivity, be the skill that those skilled in the art need to solve at present Art problem.
The content of the invention
It is an object of the invention to provide a kind of sidewall conductive layer, to reduce rubber hysteresis quality, it is ensured that electric conductivity.The present invention Additionally provide a kind of pneumatic tire.
In order to solve the above technical problems, the present invention provides a kind of sidewall conductive layer, for being arranged on the sidewall of pneumatic tire In structure, the basic rubber of the sidewall conductive layer contains carbon black and carbon nanomaterial；The BET specific surface area of the carbon black is 100m2/ below g.
Preferably, in above-mentioned sidewall conductive layer, the basic rubber is polydiene.
Preferably, in above-mentioned sidewall conductive layer, the polydiene includes NR, BR and SBR；NR dosages are 15- 90PHR, BR dosage are 5-80PHR, and SBR dosages are 5-40PHR；
Or, the polydiene includes IR, BR and SBR；IR dosages 15-90PHR, BR dosage 5-80PHR, SBR dosage 5-40PHR。
Preferably, in above-mentioned sidewall conductive layer, BR is high-cis butadiene rubber, and cis-structure content is more than or equal to 98%.
Preferably, in above-mentioned sidewall conductive layer, the BET specific surface area of the carbon black is 26m2/g-96m2/g。
Preferably, in above-mentioned sidewall conductive layer, the dosage 20-45PHR of the carbon black.
Preferably, in above-mentioned sidewall conductive layer, the dosage 0.1-10PHR of the carbon nanomaterial.
Preferably, in above-mentioned sidewall conductive layer, the carbon nanomaterial is CNT or graphene.
Preferably, in above-mentioned sidewall conductive layer, the thickness of the sidewall conductive layer is less than or equal to 0.5mm.
Preferably, in above-mentioned sidewall conductive layer, the thickness of the sidewall conductive layer is less than or equal to 0.2mm.
Present invention also offers a kind of pneumatic tire, including sidewall structure and to be arranged on sidewall in the sidewall structure conductive Layer, the sidewall conductive layer are the sidewall conductive layer as described in any one of claim -0.
Preferably, in above-mentioned pneumatic tire, the side of the pneumatic tire is fitted with the sidewall conductive layer.
Preferably, in above-mentioned pneumatic tire, the both sides of the pneumatic tire are fitted with the sidewall conductive layer.
Preferably, in above-mentioned pneumatic tire, complete cycle sidewall fitting of the sidewall conductive layer along the pneumatic tire.
Preferably, in above-mentioned pneumatic tire, the sidewall conductive layer fits in the local sidewall of the pneumatic tire.
Preferably, in above-mentioned pneumatic tire, the pneumatic tire includes wheel rim contact site, tire belt enhancement layer and tyre surface Conductive path, the sidewall conductive layer connect the wheel rim contact site and the tire belt enhancement layer, and the tire belt increases Strong layer is connected with the tyre surface conductive path；
Or, the pneumatic tire includes wheel rim contact site, tire belt, tire belt enhancement layer and tyre surface conduction and led to Road, the sidewall conductive layer connect the wheel rim contact site and the tire belt, the tire belt enhancement layer with it is described Tyre surface conductive path connects, and the tire belt contacts with the tire belt enhancement layer.
Preferably, in above-mentioned pneumatic tire, the tyre surface conductive path is less than 1 × 10 using specific insulation8Ω m's Rubber.
Sidewall conductive layer provided by the invention, by reducing the BET specific surface area of carbon black, is 100m2/ below g, have Effect improves the dispersibility of carbon black, reduces its cohesion trend, reduces the performance of packing element frictional heat so that rubber hysteresis quality Reduce, and then effectively reduce the rolling resistance of tire；Also, by adding carbon nanomaterial, it is ensured that sidewall conductive layer Electric conductivity.
Present invention also offers a kind of pneumatic tire.There is same technique effect with above-mentioned sidewall conductive layer, herein not It is discussed in detail again.
Brief description of the drawings
Fig. 1 is the first structural representation of pneumatic tire provided by the present invention；
Fig. 2 is second of structural representation of pneumatic tire provided by the present invention.
Embodiment
The core of the present invention is to provide a kind of sidewall conductive layer, to reduce rubber hysteresis quality, it is ensured that electric conductivity.The present invention Additionally provide a kind of pneumatic tire.
In order that those skilled in the art more fully understand the present invention program, with reference to the accompanying drawings and detailed description The present invention is described in further detail.
Fig. 1 and Fig. 2 are refer to, Fig. 1 is the first structural representation of pneumatic tire provided by the present invention；Fig. 2 is this Second of structural representation of the provided pneumatic tire of invention.
In this embodiment, sidewall conductive layer is used to be arranged in the sidewall structure 5 of pneumatic tire, and sidewall is led The basic rubber of electric layer contains carbon black and carbon nanomaterial；The BET specific surface area of carbon black is 100m2/ below g.
Sidewall conductive layer provided in an embodiment of the present invention, by reducing the BET specific surface area of carbon black, is 100m2/g Hereinafter, the dispersibility of carbon black is effectively increased, reduces its cohesion trend, reduces the performance of packing element frictional heat so that rubber Glue hysteresis quality reduces, and then effectively reduces the rolling resistance of tire；Also, by adding carbon nanomaterial, it is ensured that sidewall The electric conductivity of conductive layer.
Preferably, in the present embodiment, the basic rubber of sidewall conductive layer is polydiene.
Further, polydiene includes NR (NaturalRubber, natural rubber), BR (Butadiene Rubber, butadiene rubber) and SBR (Styrene Butadiene Rubber, butadiene-styrene rubber)；NR dosages are 15-90PHR (parts per hundreds of rubber, parts per hundred parts rubber content), BR dosages are 5-80PHR, and SBR dosages are 5- 40PHR。
In another embodiment, polydiene includes IR (IsopreneRubber, isoprene rubber), BR and SBR；IR Dosage 15-90PHR, BR dosage 5-80PHR, SBR dosage 5-40PHR.
In the present embodiment, BR is high-cis butadiene rubber, and cis-structure content is more than or equal to 98%.
Further, the BET specific surface area of carbon black is 26m2/g-96m2/g.By above-mentioned setting, sidewall ensure that While the conductive capability of conductive layer, frictional heat is reduced, reduce further rubber hysteresis quality.
Preferably, the dosage 20-45PHR of carbon black.
In the present embodiment, the dosage 0.1-10PHR of carbon nanomaterial.
Wherein, carbon nanomaterial is CNT or graphene.In the spatial molecular structure of CNT and graphene, Each carbon atom is only combined with its excess-three carbon atom using identical interaction force, its excess-three carbon atom and central atom Between the angle that is formed it is identical, (molecule edge can have other elements).In spatial molecular structure, the yardstick on three-dimensional is non- For 1:1:1, size is more than 10 times -100000 times of the minimum dimension with dimension at least one dimension, i.e., with each to different Property.
Tire is avoided additionally to increase weight in order to avoid the thickness of sidewall conductive layer is excessive, sidewall provided in an embodiment of the present invention Conductive layer, the thickness of sidewall conductive layer are less than or equal to 0.5mm.
Further, the thickness of sidewall conductive layer is less than or equal to 0.2mm.
The embodiment of the present invention additionally provides a kind of pneumatic tire, including sidewall structure 5 and is arranged on sidewall in sidewall structure 5 Conductive layer 4, sidewall conductive layer 4 are any sidewall conductive layer as described above.Because there is above-mentioned sidewall conductive layer above-mentioned technology to imitate Fruit, the pneumatic tire with above-mentioned sidewall conductive layer also no longer should one by one tire out state herein with similarly technique effect.
In the present embodiment, pneumatic tire include tire lip steel wire 1, wheel rim contact site 2, carcass curtain yarn layer 3, sidewall conductive layer 4, Sidewall structure 5, tire belt 6, tire belt enhancement layer 7 and tyre surface conductive path 8.
Wherein, sidewall conductive layer 4 can have a variety of relative to the arrangement of pneumatic tire：
In the first embodiment, the side of pneumatic tire is fitted with sidewall conductive layer 4.That is, the tire of pneumatic tire side Sidewall conductive layer 4 is provided with side structure 5.
In second of embodiment, the both sides of pneumatic tire are fitted with sidewall conductive layer 4.That is, pneumatic tire both sides Sidewall conductive layer 4 is provided with sidewall structure 5.
And arrangement of the sidewall conductive layer 4 in the circumference of pneumatic tire can be a variety of：
In one embodiment, complete cycle sidewall fitting of the sidewall conductive layer 4 along pneumatic tire.That is, sidewall conductive layer 4 is along filling The circumferential fitting of air filled tyre, form the sidewall conductive layer 4 of circle configurations.
In another embodiment, sidewall conductive layer 4 fits in the local sidewall of pneumatic tire.That is, the only sidewall of complete cycle A part in structure 5 is fitted with sidewall conductive layer 4.
And the form that sidewall conductive layer 4 is bonded on pneumatic tire can be a variety of：
As shown in figure 1, in the present embodiment, pneumatic tire includes wheel rim contact site 2, tire belt enhancement layer 7 and tyre surface Conductive path 8, sidewall conductive layer 4 connects wheel rim contact site 2 and tire belt enhancement layer 7, tire belt enhancement layer 7 are led with tyre surface Electric pathway 8 connects.
As shown in Fig. 2 in the present embodiment, pneumatic tire includes wheel rim contact site 2, tire belt 6, tire belt and increased Strong layer 7 and tyre surface conductive path 8, sidewall conductive layer 4 connect wheel rim contact site 2 and tire belt 6, tire belt enhancement layer 7 It is connected with tyre surface conductive path 8, tire belt 6 contacts with tire belt enhancement layer 7.
Preferably, tyre surface conductive path 8 is less than 1 × 10 using specific insulation8Ω m rubber.By above-mentioned setting, It ensure that the electric conductivity of tyre surface conductive path 8.
Sidewall conductive layer provided by the present invention is described in detail above.Specific case used herein is to this The principle and embodiment of invention are set forth, the explanation of above example be only intended to help the method for understanding the present invention and Its core concept.It should be pointed out that for those skilled in the art, the premise of the principle of the invention is not being departed from Under, some improvement and modification can also be carried out to the present invention, these are improved and modification also falls into the protection of the claims in the present invention In the range of.

Claims (17)

  1. A kind of 1. sidewall conductive layer, for being arranged in the sidewall structure (5) of pneumatic tire, it is characterised in that lead on the sidewall The basic rubber of electric layer contains carbon black and carbon nanomaterial；The BET specific surface area of the carbon black is 100m2/ below g.
  2. 2. sidewall conductive layer according to claim 1, it is characterised in that the basic rubber is polydiene.
  3. 3. sidewall conductive layer according to claim 2, it is characterised in that the polydiene includes NR, BR and SBR； NR dosages are 15-90PHR, and BR dosages are 5-80PHR, and SBR dosages are 5-40PHR；
    Or, the polydiene includes IR, BR and SBR；IR dosages 15-90PHR, BR dosage 5-80PHR, SBR dosage 5- 40PHR。
  4. 4. sidewall conductive layer according to claim 3, it is characterised in that BR is high-cis butadiene rubber, cis-structure Content is more than or equal to 98%.
  5. 5. sidewall conductive layer according to claim 1, it is characterised in that the BET specific surface area of the carbon black is 26m2/g- 96m2/g。
  6. 6. sidewall conductive layer according to claim 1, it is characterised in that the dosage 20-45PHR of the carbon black.
  7. 7. sidewall conductive layer according to claim 1, it is characterised in that the dosage 0.1-10PHR of the carbon nanomaterial.
  8. 8. according to the sidewall conductive layer described in claim any one of 1-7, it is characterised in that the carbon nanomaterial is carbon nanometer Pipe or graphene.
  9. 9. sidewall conductive layer according to claim 1, it is characterised in that the thickness of the sidewall conductive layer is less than or equal to 0.5mm。
  10. 10. sidewall conductive layer according to claim 9, it is characterised in that the thickness of the sidewall conductive layer is less than or waited In 0.2mm.
  11. 11. a kind of pneumatic tire, including sidewall structure (5) and sidewall conductive layer (4) in the sidewall structure (5) is arranged on, its It is characterised by, the sidewall conductive layer (4) is the sidewall conductive layer as described in claim any one of 1-10.
  12. 12. pneumatic tire according to claim 11, it is characterised in that the side of the pneumatic tire is fitted with the tire Side conductive layer (4).
  13. 13. pneumatic tire according to claim 11, it is characterised in that the both sides of the pneumatic tire are fitted with described Sidewall conductive layer (4).
  14. 14. pneumatic tire according to claim 11, it is characterised in that the sidewall conductive layer (4) is along the inflated wheel The complete cycle sidewall fitting of tire.
  15. 15. pneumatic tire according to claim 11, it is characterised in that the sidewall conductive layer (4) fits in described fill The local sidewall of air filled tyre.
  16. 16. pneumatic tire according to claim 11, it is characterised in that the pneumatic tire include wheel rim contact site (2), Tire belt enhancement layer (7) and tyre surface conductive path (8), the sidewall conductive layer (4) connect the wheel rim contact site (2) and institute Tire belt enhancement layer (7) is stated, the tire belt enhancement layer (7) is connected with the tyre surface conductive path (8)；
    Or, the pneumatic tire is led including wheel rim contact site (2), tire belt (6), tire belt enhancement layer (7) and tyre surface Electric pathway (8), the sidewall conductive layer (4) connect the wheel rim contact site (2) and the tire belt (6), the tire Belt reinforcing layer (7) is connected with the tyre surface conductive path (8), the tire belt (6) and the tire belt enhancement layer (7) contact.
  17. 17. according to the pneumatic tire described in claim any one of 11-16, it is characterised in that the tyre surface conductive path (8) is adopted It is less than 1 × 10 with specific insulation8Ω m rubber.
CN201710884734.4A 2017-09-26 2017-09-26 Pneumatic tire and its sidewall conductive layer Pending CN107672388A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710884734.4A CN107672388A (en) 2017-09-26 2017-09-26 Pneumatic tire and its sidewall conductive layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710884734.4A CN107672388A (en) 2017-09-26 2017-09-26 Pneumatic tire and its sidewall conductive layer

Publications (1)

Publication Number Publication Date
CN107672388A true CN107672388A (en) 2018-02-09

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109747347A (en) * 2019-03-01 2019-05-14 正新橡胶（中国）有限公司 A kind of pneumatic tire and preparation method thereof
EP3680114A1 (en) * 2019-01-10 2020-07-15 Continental Reifen Deutschland GmbH Pneumatic tyres for a vehicle
US20220402312A1 (en) * 2019-09-16 2022-12-22 Apollo Tyres Global R&D B.V. Tyre comprising a piezoelectric device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1891508A (en) * 2005-06-29 2007-01-10 住友橡胶工业株式会社 Tire
CN101049794A (en) * 2006-04-04 2007-10-10 住友橡胶工业株式会社 Pneumatic tire
CN101323234A (en) * 2007-06-15 2008-12-17 住友橡胶工业株式会社 Pneumatic tire
CN101522442A (en) * 2006-09-27 2009-09-02 东洋橡胶工业株式会社 Pneumatic tire
CN102101919A (en) * 2009-12-21 2011-06-22 固特异轮胎和橡胶公司 Tire with a component containing carbon nanotubes
CN103317975A (en) * 2012-03-21 2013-09-25 住友橡胶工业株式会社 Pneumatic tire
JP2015189282A (en) * 2014-03-27 2015-11-02 住友ゴム工業株式会社 pneumatic tire

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1891508A (en) * 2005-06-29 2007-01-10 住友橡胶工业株式会社 Tire
CN101049794A (en) * 2006-04-04 2007-10-10 住友橡胶工业株式会社 Pneumatic tire
CN101522442A (en) * 2006-09-27 2009-09-02 东洋橡胶工业株式会社 Pneumatic tire
CN101323234A (en) * 2007-06-15 2008-12-17 住友橡胶工业株式会社 Pneumatic tire
CN102101919A (en) * 2009-12-21 2011-06-22 固特异轮胎和橡胶公司 Tire with a component containing carbon nanotubes
CN103317975A (en) * 2012-03-21 2013-09-25 住友橡胶工业株式会社 Pneumatic tire
JP2015189282A (en) * 2014-03-27 2015-11-02 住友ゴム工業株式会社 pneumatic tire

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3680114A1 (en) * 2019-01-10 2020-07-15 Continental Reifen Deutschland GmbH Pneumatic tyres for a vehicle
WO2020143958A1 (en) * 2019-01-10 2020-07-16 Continental Reifen Deutschland Gmbh Pneumatic tyre for a vehicle
CN109747347A (en) * 2019-03-01 2019-05-14 正新橡胶（中国）有限公司 A kind of pneumatic tire and preparation method thereof
US20220402312A1 (en) * 2019-09-16 2022-12-22 Apollo Tyres Global R&D B.V. Tyre comprising a piezoelectric device

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Application publication date: 20180209

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