Flexible sound-insulation composite material and preparation method thereof

A composite material and thermoplastic material technology, which is applied in the fields of materials and their preparation, flexible sound insulation composite materials and their preparation, can solve problems such as the inability to fully meet various technical requirements, and achieve high dimensional stability, small shrinkage and distortion. , good sound insulation effect

Active Publication Date: 2016-10-12
秦耀东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present, the density, mechanical properties, heat aging resistance, sound insulation performance and environmental protection performance of sound insulation materials at home and abroad can not fully meet the technical needs of various aspects. And multiple tests, combined with long-term experience in related work, research and design a flexible sound insulation composite material with excellent mechanical properties, long service life, high sound insulation performance, environmental friendliness, recyclability and its simple preparation method, is of great significance

Method used

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  • Flexible sound-insulation composite material and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0028] A kind of flexible sound insulation composite material, the preparation method of this composite material comprises the steps:

[0029] (1) Weigh 60 parts of barium sulfate, put 2 parts of silane coupling agent into a high-speed mixer for heating and activation, the premixing temperature is 90°C, the premixing time is 6 minutes, and the rotation speed is 500 rpm;

[0030] (2) 10 parts of butadiene-acrylonitrile rubber, 40 parts of polyurethane fiber, 10 parts of tributyl citrate, 1 part of 2,6-tertiary butyl-4-methylphenol, 8 parts Add zinc borate into a high-speed machine and mix, further heat and pre-mix evenly, the pre-mixing temperature is 90°C, the pre-mixing time is 6 minutes, and the speed is 300 rpm;

[0031] (3) The raw materials of step (2) are further pre-mixed under negative pressure in a high-speed mixer, the temperature of the negative-pressure pre-mix is ​​maintained at 90°C, the maintenance time of the negative-pressure pre-mix is ​​5min, and the vacuum ...

Embodiment 2

[0034] A kind of flexible sound insulation composite material, the preparation method of this composite material comprises the steps:

[0035] (1) Weigh 40 parts of calcium carbonate, 30 parts of thorium borate, and 1 part of titanate coupling agent into a high-speed mixer for heating and activation. The premixing temperature is 100 ° C, the premixing time is 5 minutes, and the speed is 450 rpm. min;

[0036] (2) With 12 parts of polyvinyl chloride, 42 parts of aramid fibers, 13 parts of tricresyl phosphate, 1.1 parts of bis (3,5-tertiary butyl-4-hydroxyphenyl) sulfide, 9 parts Parts of tris(nonylated phenyl)phosphite were added to the high-speed machine and mixed, further heated and premixed evenly, the premixing temperature was 100°C, the premixing time was 4min, and the speed was 280 rpm;

[0037] (3) The raw materials of step (2) are further pre-mixed under negative pressure in a high-speed mixer, the temperature of the negative-pressure pre-mix is ​​maintained at 88°C, the...

Embodiment 3

[0040] A kind of flexible sound insulation composite material, the preparation method of this composite material comprises the steps:

[0041] (1) Weigh 40 parts of strontium carbonate, 40 parts of vermiculite powder, and 2 parts of aluminate coupling agent into a high-speed mixer for heating and activation. The premixing temperature is 110 ° C, the premixing time is 8 minutes, and the speed is 600 rpm. min;

[0042] (2) 20 parts of natural rubber, 50 parts of aramid fibers, 20 parts of acetyl tributyl citrate, 0.8 parts of tetrakis (Β-(3,5-tertiary butyl-4-hydroxyphenyl) Propionic acid) pentaerythritol ester, 12 parts of antimony trioxide was added to the high-speed machine for mixing, further heating and premixing, the premixing temperature was 120°C, the premixing time was 8min, and the rotating speed was 400 rpm;

[0043] (3) The raw materials of step (2) are further pre-mixed under negative pressure in a high-speed mixer, the temperature of the negative-pressure pre-mix ...

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Abstract

The invention provides a flexible sound-insulation composite material. The composite material is mainly composed of high-density particles, a viscoelastic thermoplastic material and a flexible framework which is easy to bent and can resist stretching and shearing damages. The composite material prepared by the invention has excellent properties of high strength, high density, fire resistance, no toxin and environment friendliness, corrosion resistance and good sound-insulation effect and can be widely applied to industries including highway traffic, urban rail transit, machinery equipment, house building, ships, home decoration, industrial product packaging and the like. Furthermore, the invention also provides a preparation method of the flexible sound-insulation composite material. A sheet material with low odor, low VOC (Volatile Organic Compound) content, low volatile matter content and good mechanical property indexes of the product is obtained through strictly controlling the extruding temperature and the post-period heating temperature to reduce decomposition and molecular migration of the material, and is an environment-friendly material.

Description

technical field [0001] The invention relates to a material and a preparation method thereof, belonging to the field of new sound insulation materials, in particular to a flexible sound insulation composite material and a preparation method thereof. Background technique [0002] In recent years, with the continuous advancement of my country's urbanization process, it has provided excellent development opportunities for the construction of infrastructure such as road traffic and real estate, as well as the development of manufacturing industries such as automobiles, ships, aircraft, and equipment. The noise problems caused by construction and equipment operation have become increasingly prominent, causing serious harm to the physical and mental health of the personnel engaged in these tasks and the surrounding residents. [0003] Flexible sound insulation materials have been widely used in noise control engineering because of their main characteristics of easy use, no resonance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08L9/02C08L77/10C08L27/06C08L7/00C08L23/08C08K13/06C08K9/06C08K3/30C08K5/11C08K5/13C08K3/38C08K9/04C08K3/26C08K5/523C08K5/372C08K5/524C08K3/34C08K5/134C08K3/22
CPCC08L75/04C08L77/10C08L2205/16C08L9/02C08K13/06C08K9/06C08K2003/3045C08K5/11C08K5/13C08K2003/387C08L27/06C08K9/04C08K2003/265C08K5/523C08K5/372C08K5/524C08L7/00C08K3/34C08K5/1345C08K3/2279C08L23/0853C08K2003/2227C08K2003/3009
Inventor 杨洁夏敏
Owner 秦耀东
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