Orientated carbon nanotube composite, process for producing orientated carbon nanotube, and, produced using orientated carbon nanotube composite, pneumatic tire, wheel for vehicle, tire wheel assembly and disk brake

a carbon nanotube and composite technology, applied in the direction of brake discs, tire wheel assemblies, mechanical equipment, etc., can solve the problems of non-uniform dispersion of fillers and lowering dynamic properties, and achieve simple cooling and high efficiency

Inactive Publication Date: 2006-03-23
BRIDGESTONE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0062] According to this invention, the cooling means is constituted with the

Problems solved by technology

However, in order to obtain a satisfactory effect, it is required to fairly increase the compounding amount of the filler or the like

Method used

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  • Orientated carbon nanotube composite, process for producing orientated carbon nanotube, and, produced using orientated carbon nanotube composite, pneumatic tire, wheel for vehicle, tire wheel assembly and disk brake
  • Orientated carbon nanotube composite, process for producing orientated carbon nanotube, and, produced using orientated carbon nanotube composite, pneumatic tire, wheel for vehicle, tire wheel assembly and disk brake
  • Orientated carbon nanotube composite, process for producing orientated carbon nanotube, and, produced using orientated carbon nanotube composite, pneumatic tire, wheel for vehicle, tire wheel assembly and disk brake

Examples

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examples

[0121] The carbon nanotube orientated composite of the second embodiment and the pneumatic tire using the same are explained in detail with reference to the following examples but the invention is not limited to these examples.

examples 1-15

[0122] There are prepared various rubber compositions having a compounding recipe shown in Table 1. Then, each of these rubber composition after the kneading is extruded through an extruder at an extrusion rate of 10 m / min and drawn at a drawing rate of 15 m / min under a tension of 0-200 N / mm2 and vulcanized to prepare a rod-shaped carbon nanotube orientated composite having a diameter of 1 mm in which carbon nanotubes are orientated therein.

examples 1-3

Conventional Examples 1-3

[0123] A rubber composition is kneaded in the same manner as in Example 3, 8 or 12 except that carbon nanotubes are not compounded, and extruded without applying tension and vulcanized to prepare a thread-shaped vulcanized rubber.

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Abstract

A carbon nanotube orientated composite formed by orientating carbon nanotubes in a given direction in a matrix having a heat conductivity lower than that of carbon nanotube, in which at least a part of carbon nanotubes are contacted with each other to be continuous from one end to the other end between both ends in the orientated direction, is provided as a material having a heat conductivity considerably higher than that of copper, aluminum or the like or a material to be disposed in rubber material having a low heat releasing characteristic to considerably improve the heat conduction, and also there are provided a method of producing the same as well as a pneumatic tire, a wheel for a vehicle, a tire-wheel assembly and a disc brake using this material.

Description

TECHNICAL FIELD [0001] This invention relates to a carbon nanotube orientated composite formed by orientating carbon nanotubes in a matrix and a method of producing the same as well as a pneumatic tire, a wheel for a vehicle, a tire-wheel assembly and a disc brake having a heat dissipation improved by using the carbon nanotube orientated composite. BACKGROUND ART [0002] As a general-purpose heat conductive material for thermal machine accompanied with a phenomenon of heat exchange and heat conduction, or for heat dispersion have hitherto been used a cast iron, stainless steel, copper and copper alloy, aluminum and aluminum alloy, nickel and nickel alloy, titanium and titanium alloy, zirconium alloy and the like. Particularly, copper, aluminum and the like having a highest heat conductivity over a temperature range from room temperature to higher temperature are used in thermal machines requiring a high heat conductivity such as heat exchangers and the like. [0003] However, thermal m...

Claims

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Application Information

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IPC IPC(8): D02J1/22B60C9/00B60C9/20B60C11/01B60C15/06B60C19/00C08K7/06C08K7/24F16D65/092F16D65/12F16D65/78
CPCB60C9/00B60C9/0007F16D2200/006B60C9/20B60C11/01B60C15/06B60C19/00B82Y30/00C08K7/06C08K7/24C08K2201/011F16D65/092F16D65/125F16D65/128F16D65/78F16D2065/1328F16D2200/0052C08L21/00
Inventor KIKUCHI, MASAMIHARADA, IKIMIZUNO, KEIICHIROTANUMA, ITSUOOGAWA, MASAOAIZAWA, SATOSHIAOIKE, YUKIOSHIZUKU, TAKAHISA
Owner BRIDGESTONE CORP
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