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Car elastomer sound insulation material and manufacturing method thereof

A manufacturing method and body sound insulation technology, which is applied in the field of sound insulation materials and its manufacture, can solve the problems of poor mutual adhesion, low adhesion, and hazards of butyl rubber, and achieve good sound insulation effects, good physical properties, and noise reduction effects.

Active Publication Date: 2015-07-01
SHANGHAI XINAN CAR DEADENING FELT
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Asphalt is a brown-black organic gelatinous substance, which is very harmful to the human body, and is currently being replaced by butyl rubber; and butyl rubber also has its disadvantages: butyl rubber has poor mutual adhesion, and must rely on a tackifier 1. The adhesion-promoting layer improves the adhesion with other materials, and the adhesion is low; it has poor compatibility with other rubbers, and generally can only be used with ethylene-propylene rubber and polyethylene; the interaction with reinforcing agents is weak, and it is not compatible with other rubbers. Compared with saturated rubber, the interaction between butyl rubber and reinforcing agent is weak, and heat treatment or additives are required to increase the reinforcing effect of rubber and improve tensile strength, modulus, elasticity, wear resistance and other properties

Method used

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  • Car elastomer sound insulation material and manufacturing method thereof
  • Car elastomer sound insulation material and manufacturing method thereof
  • Car elastomer sound insulation material and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A Xin'an-automobile front wall sound insulation product is set on the inner side of the car front wall and is a composite structure composed of PUR foam and elastomer sound insulation materials.

[0028] The manufacturing method of the elastic body sound insulation material comprises the following steps:

[0029] (1) Mixing in internal mixer: After weighing POE, PE, inorganic filler and extender oil according to the ratio of 70:30:280:20, put them into internal mixer for high-speed kneading, and exhaust once in the middle. After mixing for 6 minutes, the temperature reaches 130°C and then the rubber is removed.

[0030] (2) Mixing in the open mill: Put the above-mentioned rubber material on the open mill and roll it over and mix evenly. The roller heating temperature is 120°C.

[0031] (3) Making sheets: Put the mixed rubber material into the calender to output the sheet, the width of the door is 900mm, and the roller distance is adjusted to .

[0032] (4) Corona tre...

Embodiment 2

[0042] An elastomeric sound-insulating material for automobiles, which is processed by mixing thermoplastic elastomers POE, PE, inorganic filler barite powder and filler oil, wherein the weight ratio of POE, PE, barite powder and filler oil is 80:20:290:10, and the total number of parts of POE, PE, barite powder and extender oil is 400 parts. Extender oil is selected from technical grade white mineral oil.

[0043] A method for manufacturing an elastomeric sound-insulating material for automobiles, comprising the following steps:

[0044] (1) Mixing with internal mixer: After weighing POE, PE, barite powder and extender oil in a ratio of 80:20:290:10 by weight, and the total number of parts is 400 parts, put them into the compactor The mixer is kneaded at high speed, and exhausted twice in the middle to obtain the first rubber material, wherein the mixing time in the internal mixer is controlled at 5 minutes, and the bottom temperature of the mixing tank in the internal mixer...

Embodiment 3

[0051] An elastomeric sound-insulating material for automobiles, which is processed by mixing thermoplastic elastomers POE, PE, inorganic filler barite powder and filler oil, wherein the weight ratio of POE, PE, barite powder and filler oil is 75:25:285:15, and the total number of parts of POE, PE, barite powder and extender oil is 400 parts. Extender oil is selected from technical grade white mineral oil.

[0052] A method for manufacturing an elastomeric sound-insulating material for automobiles, comprising the following steps:

[0053](1) Mixing with internal mixer: After weighing POE, PE, barite powder and extender oil in a ratio of 75:25:285:15 in parts by weight, and the total number of parts is 400 parts, put them into the compactor The mixer kneads at a high speed, and exhausts air once in the middle to obtain the first rubber material. The mixing time in the internal mixer is controlled at 7 minutes, and the bottom temperature of the mixing tank in the internal mixer...

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Abstract

The invention relates to a car elastomer sound insulation material and a manufacturing method thereof. The car elastomer sound insulation material is prepared by mixing thermalplastic elastomer POE (polyolefin elastomer) and PE (poly ethylene), inorganic filler barite powder and filling oil, the weight ratio of POE: PE: barite powder: filling oil is (70-80): (20-30): (280-290): (10-20), the total part of the POE, PE, barite powder and filling oil is 400. Compared with the prior art, the car elastomer sound insulation material filled with the thermoplastic elastomer POE and barite powder has good physical properties and good sound insulation effect, and can reduce the passenger compartment noise and ensure a quiet and comfortable environment for drivers and passengers. The sound insulation material is tested for many times, the sound insulation material with different thickness has different sound insulation effects, and in general condition, the sound insulation effect is increased while the thickness is increased, and the sound insulation material can be adjusted according to the design requirement.

Description

technical field [0001] The invention relates to a sound-insulating material and a manufacturing method thereof, in particular to an elastic body sound-insulating material for automobiles and a manufacturing method thereof. Background technique [0002] At present, the main sound insulation materials in China are asphalt and butyl rubber. Asphalt is a brown-black organic gelatinous substance, which is very harmful to the human body, and is currently being replaced by butyl rubber; and butyl rubber also has its disadvantages: butyl rubber has poor mutual adhesion, and must rely on a tackifier 1. The adhesion-promoting layer improves the adhesion with other materials, and the adhesion is low; it has poor compatibility with other rubbers, and generally can only be used with ethylene-propylene rubber and polyethylene; the interaction with reinforcing agents is weak, and it is not compatible with other rubbers. Compared with saturated rubber, the interaction between butyl rubber ...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L23/06C08K3/30
CPCC08L23/0815C08L2205/03C08L2207/04C08L23/06C08L91/06C08K2003/3045
Inventor 范洁
Owner SHANGHAI XINAN CAR DEADENING FELT
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