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High-damping silicone rubber modified ABS (acrylonitrile-butadiene-styrene) acoustic insulating material preparation method based on low-frequency noise protection

A technology of sound insulation material and low frequency noise, which is applied in the field of preparation of high damping silicone rubber modified ABS sound insulation material, can solve the problems of good sound transmission effect, poor low frequency noise blocking effect, poor sound insulation effect, etc., and achieves low cost and high performance. Strength, easy-to-source effects

Inactive Publication Date: 2017-05-24
邝耀燊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It not only has high-efficiency sound insulation and sound absorption performance, but also has many advantages such as light weight, good processing performance, and corrosion resistance; but similar to most polymer materials, the sound insulation frequency band of sound insulation materials prepared by multiphase composite technology It is still concentrated in the middle and high frequency area (500~5 000 Hz), and the blocking effect on low frequency noise is not good
[0006] From the analysis of sound propagation mechanism, if the natural vibration frequency of the material is close to the frequency of sound wave vibration, the sound transmission effect is good and the sound insulation effect is poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for preparing a high-damping silicone rubber modified ABS sound-insulating material based on low-frequency noise protection, comprising the steps of:

[0029] S1. Add 160g of high-damping silicone rubber and 100g of natural halloysite nanotubes to the XK-160 double-roll mill, and mix for 3 minutes;

[0030] S2, then add 1.5g of benzoyl peroxide, continue to knead for 6 minutes, thin pass 3 times, take off the tablet, and set aside;

[0031] S3. Set the temperature of the XK-160 double-roll mill to 150°C for the front roll and 150°C for the rear roll, and add 100g of dried ABS pellets between the two rolls to plasticize the roll;

[0032] S4, divide the mixed high-damping silicone rubber and benzoyl peroxide mixture into small pieces, and gradually add them to the ABS melt;

[0033] S5. Then add the prepared polyurethane foam prepolymer into the CTE-20 co-rotating twin-screw, and use the CTE-20 co-rotating twin-screw compounding extruder to continue mixing for ...

Embodiment 2

[0036] A method for preparing a high-damping silicone rubber modified ABS sound-insulating material based on low-frequency noise protection, comprising the steps of:

[0037] S1. Add 100g of high-damping silicone rubber and 80g of natural halloysite nanotubes into the XK-160 double-roll mill, and mix for 2 minutes;

[0038] S2, then add 2.5g of benzoyl peroxide, continue to knead for 6 minutes, thin pass 3 times, take off the tablet, and set aside;

[0039] S3. Set the temperature of the XK-160 double-roll mill to 165°C for the front roll and 165°C for the rear roll, add 100g of ABS pellets after drying into the space between the two rolls, and plasticize the roll;

[0040] S4, divide the mixed high-damping silicone rubber and benzoyl peroxide mixture into small pieces, and gradually add them to the ABS melt;

[0041] S5. Then add the prepared polyurethane foam prepolymer into the CTE-20 co-rotating twin-screw, and use the CTE-20 co-rotating twin-screw compounding extruder to...

Embodiment 3

[0044] A method for preparing a high-damping silicone rubber modified ABS sound-insulating material based on low-frequency noise protection, comprising the steps of:

[0045] S1. Add 160g of high-damping silicone rubber and 40g of natural halloysite nanotubes into the XK-160 double-roll mill, and mix for 2 minutes;

[0046] S2, then add 1.5g of benzoyl peroxide, continue to knead for 6 minutes, thin pass 3 times, take off the tablet, and set aside;

[0047] S3. Set the temperature of the XK-160 double-roll mill to 180°C for the front roll and 180°C for the rear roll, and add 100g of dried ABS pellets between the two rolls to plasticize the roll;

[0048] S4, divide the mixed high-damping silicone rubber and benzoyl peroxide mixture into small pieces, and gradually add them to the ABS melt;

[0049] S5. Then add the prepared polyurethane foam prepolymer into the CTE-20 co-rotating twin-screw, and use the CTE-20 co-rotating twin-screw compounding extruder to continue mixing for...

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PUM

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Abstract

The invention discloses a high-damping silicone rubber modified ABS (acrylonitrile-butadiene-styrene) acoustic insulating material preparation method based on low-frequency noise protection. The preparation method comprises the following main steps of: mixing modified materials, preparing basis materials, mixing modified materials, blending basis materials, and then preparing a high-damping silicone rubber modified ABS acoustic insulating material. The preparation method has the beneficial effects that acrylonitrile-butadiene-styrene (ABS) is used as a host material, a home-made polyurethane foaming prepolymer is added to the ABS host material, the acoustic insulating material prepared after the polyurethane foaming prepolymer and the ABS are mixed has obvious sound insulation honeycombs, a very good effect on back and forth friction of sound and the characteristic of density of a cellular network structure, high-damping silicone rubber with a good dissipation effect on low-frequency noise at a room temperature and natural halloysite nanotubes are selected as modified materials for preparing the high-damping silicone rubber modified ABS acoustic insulating material.

Description

technical field [0001] The invention belongs to the technical field of noise-reducing materials, and more specifically relates to a method for preparing a high-damping silicone rubber-modified ABS sound-insulating material based on low-frequency noise protection. Background technique [0002] With the development of social productivity, the evolution of production methods and the improvement of technology, the problem of environmental pollution on which human beings depend is becoming more and more serious, and the contradiction between human beings and the environment is becoming more and more significant. The substantial increase in the number of motor vehicles and the rapid increase in construction projects in various places have made noise pollution more and more serious, and it has become a prominent problem in environmental pollution. Noise pollution, air pollution and water pollution are called the three major environmental hazards. Therefore, controlling noise pollu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L55/02C08L83/04C08L75/08C08K7/26C08K5/14C08G18/66C08G18/48C08G18/32C08G101/00
CPCC08L55/02C08G18/3206C08G18/48C08G18/6674C08G2101/00C08K2201/011C08L2205/03C08L83/04C08L75/08C08K7/26C08K5/14
Inventor 邝耀燊
Owner 邝耀燊
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