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Preparation method for sound absorption and noise reduction material used for pneumatic tyres

A pneumatic tire and noise reduction technology, applied in the direction of sounding equipment, instruments, etc., can solve the problems of road noise, tire vibration noise, etc., and achieve the effect of reducing tire noise, easy operation, improving fatigue resistance and service life

Inactive Publication Date: 2019-06-25
JIANGSU GENERAL SCI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The air flow in the tire pattern gap and the air noise caused by the air disturbance around the tire;
[0004] 2. The tire vibration noise caused by the vibration of the carcass and the tread part;
[0005] 3. Road noise caused by uneven road surface;
[0006] 4. Cavity resonance sound caused by air vibration inside the tire

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A preparation method of a sound-absorbing and noise-reducing material for a pneumatic tire comprises the following steps:

[0019] 1) Set the temperature of the double-roller mill to 35°C, add 100 parts by weight of HXNBR after the temperature is constant, mix for 10 minutes, then add 10 parts by weight of hollow polyester fibers, and after mixing evenly, add 1 part by weight of graphene fibers Continue mixing to obtain HXNBR / hollow polyester fiber / graphene fiber mixture;

[0020] 2) Put the HXNBR / hollow polyester fiber / graphene fiber mixture into the mold, put it into a flat vulcanizer, adjust the air pressure to 5 MPa, and the hot pressing temperature to 130°C, take it out after pressing for 13 minutes, and place it in a water bath at 0°C Cooling and demoulding in the middle to obtain the HXNBR / hollow polyester fiber / graphene fiber composite material with a thickness of 7mm;

[0021] 3) After preheating the HXNBR / hollow polyester fiber / graphene fiber composite materi...

Embodiment 2

[0023] A preparation method of a sound-absorbing and noise-reducing material for a pneumatic tire comprises the following steps:

[0024] 1) Set the temperature of the double-roll mill to 55°C. After the temperature is constant, add 100 parts by weight of HXNBR, mix for 3 minutes, then add 50 parts by weight of hollow polyester fiber, and after mixing evenly, add 4 parts by weight of graphene fiber Continue mixing to obtain HXNBR / hollow polyester fiber / graphene fiber mixture;

[0025] 2) Put the HXNBR / hollow polyester fiber / graphene fiber mixture into the mold, put it into a flat vulcanizer, adjust the air pressure to 10 MPa, and the hot pressing temperature to 110°C, take it out after pressing for 20 minutes, and place it in a water bath at 10°C Cooling and demolding in the middle to obtain a HXNBR / hollow polyester fiber / graphene fiber composite material with a thickness of 1 mm;

[0026] 3) After preheating the HXNBR / hollow polyester fiber / graphene fiber composite material ...

Embodiment 3

[0028] A preparation method of a sound-absorbing and noise-reducing material for a pneumatic tire comprises the following steps:

[0029] 1) Set the temperature of the double-roll mill to 45°C. After the temperature is constant, add 100 parts by weight of HXNBR, mix for 15 minutes, then add 60 parts by weight of hollow polyester fiber, and after mixing evenly, add 10 parts by weight of graphene fiber Continue mixing to obtain HXNBR / hollow polyester fiber / graphene fiber mixture;

[0030] 2) Put the HXNBR / hollow polyester fiber / graphene fiber mixture into the mold, put it into a flat vulcanizer, adjust the air pressure to 7 MPa, and the hot pressing temperature to 100°C, take it out after pressing for 10 minutes, and place it in ice at 5°C Cool and demould in a water bath to obtain a 10 mm thick HXNBR / hollow polyester fiber / graphene fiber composite material;

[0031] 3) After preheating the HXNBR / hollow polyester fiber / graphene fiber composite material in a constant temperature...

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Abstract

The invention relates to a preparation method for a sound absorption and noise reduction material used for pneumatic tyres. The preparation method comprises the following steps that HXNBR is added toperform mixing after the temperature of a double-roller open mixing machine is set to be constant, then hollow polyester fiber is added, after the mixing is performed evenly, graphene fiber is added to continue to perform the mixing, and an HXNBR / hollow polyester fiber / graphene fiber mixture is obtained; the mixture is placed into a mold to be put into a slab vulcanizing machine and taken out after being pressed, then cooling demolding is performed, and an HXNBR / hollow polyester fiber / graphene fiber composite material is obtained; and the composite material is placed into the mold to be pressed and bonded with a nonwoven material after being placed into a constant temperature oven for preheating, and the sound absorption and noise reduction material is obtained. The preparation method forthe sound absorption and noise reduction material used for the pneumatic tyres is simple in step and easy to operate; by means of the preparation method for the sound absorption and noise reduction material used for the pneumatic tyres, the obtained sound absorption and noise reduction material has good sound absorption and noise reduction effect, and tyre noise is reduced by 10% or above; and bymeans of the preparation method for the sound absorption and noise reduction material used for the pneumatic tyres, the graphene fiber is introduced in, the fatigue resistance of the sound absorptionand noise reduction material is improved, and the service life of the sound absorption and noise reduction material is prolonged.

Description

technical field [0001] The invention relates to a method for preparing a tire patch, in particular to a method for preparing a sound-absorbing and noise-reducing material for a pneumatic tire. Background technique [0002] Tire noise is caused by the friction between the tire and the road surface, and is the main factor that constitutes the chassis noise. Sources of tire noise: [0003] 1. The air flow in the tire pattern gap and the air noise caused by the air disturbance around the tire; [0004] 2. The tire vibration noise caused by the vibration of the carcass and the tread part; [0005] 3. Road noise caused by uneven road surface; [0006] 4. Cavity resonance sound caused by air vibration inside the tire. [0007] Under special driving conditions, the tires will also make squealing and splashing sounds. The bumps in the lower part of the wheel house cause the airflow to separate, and also generate strong noise. The wind induced by the wheel rotation in the wheel h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B7/52B29B7/72B29C35/02B29C51/00B29C51/46C08L13/00C08L67/02C08K7/06G10K11/162
Inventor 朱凉伟周平崔玉叶张洪学
Owner JIANGSU GENERAL SCI TECH
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