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Composite material comprising short fibers

A composite material, fiber technology, used in transportation and packaging, special tires, tire parts, etc., can solve problems such as hysteresis properties of mixtures that are not mentioned

Pending Publication Date: 2022-05-27
MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the document is silent on the hysteresis properties of the mixture obtained

Method used

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  • Composite material comprising short fibers
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Experimental program
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Embodiment

[0104] Measurement methods

[0105] Mooney plasticity measurements are performed according to the following principles and in accordance with standard ASTM D-1646. The composition or elastomer (usually in the initial state) is molded in a cylindrical chamber heated to a given temperature (usually 100°C). After one minute of preheating, the L-shaped rotor was rotated within the sample at 2 rpm, and the operating torque used to maintain this motion was measured after 4 minutes of rotation. Mooney plasticity (ML 1+4) is expressed in "Mooney Units" (MU, where 1MU = 0.83 Newton.m).

[0106] Tensile tests were performed according to French Standard NF T 46-002 of September 1988. All tensile measurements were carried out under standard conditions of temperature (23±2° C.) and humidity (50%±5% relative humidity) according to French standard NF T 40-101 (December 1979).

[0107] In the second elongation (ie after conditioning), at 10% elongation (denoted as MA 10 The nominal secant...

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Abstract

The invention relates to a composite material based on at least one reinforcing element comprising a metal surface and a rubber composition based on at least one diene elastomer, a reinforcing filler, a cross-linking system and fibers having a length of 1 mm to 20 mm and a diameter of 10 [mu] m to 100 [mu] m.

Description

technical field [0001] The present invention relates to the field of composite materials, in particular composite materials capable of reinforcing rubber articles, such as those used to reinforce pneumatic or non-pneumatic tires for vehicles. Background technique [0002] Reinforcing plies of tires or rubber articles, such as conveyor or conveyor belts, typically comprise a rubber compound (called a calendered compound) and reinforcement cords, which are typically metal and covered with brass. [0003] The bonding function generally requires a specific formulation of the calendering mixture, in particular high levels of sulfur and zinc oxide, small amounts of stearic acid, the presence of cobalt salts, and the use of retardation accelerators. Furthermore, it is desirable for the calendered mixture to have sufficient stiffness and cause as little hysteresis loss as possible to minimize rolling resistance or heating of the rubber article. It follows that this complex mixture ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L77/06C08L29/04C08J5/04B60C1/00
CPCC08J5/046B60C1/0016C08J2307/00C08K3/04C08L7/00
Inventor O·加瓦尔-伦恰A-L·蒂耶
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN