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High-performance sound-absorbing, damping and vibration-reducing ternary composite material and manufacturing method thereof

A composite material and manufacturing method technology, which is used in the development of engineering materials for vibration reduction, sound absorption and noise reduction, and the manufacture of high-performance sound-absorbing and damping-vibration-reducing ternary composite materials, which can solve the mechanical problems of damping and sound-absorbing materials. performance degradation, crystallization of small organic molecules, etc., to achieve the effect of improving service life, good mechanical properties, and good sound absorption performance

Inactive Publication Date: 2015-07-08
NANTONG TEXTILE VOCATIONAL TECH COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to solve the defects of attenuation of damping performance of high-performance damping and vibration-absorbing materials and the decline of mechanical properties of sound-absorbing materials in the organic hybrid method, the problem of crystallization of small organic molecules must be solved, and the working mechanism of vibration-damping materials and sound-absorbing materials must be discussed. Find their common points and develop a composite material with high performance sound absorption and damping function

Method used

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  • High-performance sound-absorbing, damping and vibration-reducing ternary composite material and manufacturing method thereof
  • High-performance sound-absorbing, damping and vibration-reducing ternary composite material and manufacturing method thereof
  • High-performance sound-absorbing, damping and vibration-reducing ternary composite material and manufacturing method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The mass percentage of each component of the high-performance sound-absorbing and damping and vibration-reducing ternary composite material adopts CPE:AO 2246:SHPF=52.86:42.38:4.76. The preparation steps of the high-performance sound-absorbing and damping and vibration-reducing ternary composite material are as follows:

[0037] The first step of mixing:

[0038] 1) Raise the temperature of the rollers on the double-roller plastic refining machine to 55°C and keep it basically stable;

[0039] 2) Add chlorinated polyethylene with a mass percentage of 52.86% between the rollers, and through the surface temperature of the rollers and the pressure of the rollers, the chlorinated polyethylene powder presents a uniform viscous fluid state with the aid of cutters for auxiliary mixing film;

[0040] 3) Add organic small molecule AO2246 powder with a mass percentage of 42.38% between the rollers, make full use of the characteristics of the surface speed difference between the ...

Embodiment 2

[0049] The mass percentage of each component of the high-performance sound-absorbing and damping and vibration-reducing ternary composite material adopts CPE:AO 2246:SHPF=48.26:38.70:13.04, and the preparation steps and Embodiment 1 is the same, and its process is different from embodiment 1 in that the temperature is 60° C. and the time is 35 minutes when the raw materials are uniformly mixed on the double-roller extruding machine. The samples were hot-pressed under a flat vulcanizer at a temperature of 150° C., a preheating time of 10 minutes, a hot-pressing time of 10 minutes, a vulcanization forming pressure of 15 MPa, and a time of 15 minutes. Finally, the material was taken out and cooled in ice water. Thus, a high-performance sound-absorbing and vibration-damping ternary composite material with a thickness of 0.7 mm can be obtained.

Embodiment 3

[0051]The mass percentage of each component of the high-performance sound-absorbing and damping and vibration-reducing ternary composite material adopts CPE:AO 2246:SHPF=44.40:35.60:20.00, and the preparation steps of the high-performance sound-absorbing and damping and vibration-reducing ternary composite material Embodiment 1 is the same, and its technology is different from embodiment 1 in that the temperature is 65 ° C and the time is 50 minutes when the raw materials are uniformly mixed on the double-roller extruder. And hot-press the sample under the flat vulcanizer, the temperature is 160 ℃, the preheating time is 15 minutes, the vulcanization hot-pressing time is 25 minutes, the vulcanization forming pressure is 18Mpa, the time is 30 minutes, and finally the material is taken out and cooled in ice water . Thus, a high-performance sound-absorbing and vibration-damping ternary composite material with a thickness of 0.7 mm can be obtained.

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Abstract

The invention discloses a high-performance sound-absorbing, damping and vibration-reducing ternary composite material and a manufacturing method thereof. The composite material is prepared by mixing, hot-pressing and forming chlorinated polyethylene, 2,2methylene-di(4-methyl-6-tertiary butyl phenol) and seven-hole middle cavity terylene. Due to the adoption of the composite material, the aging phenomenon of a high-molecular polymer organic hybridized damping material is avoided, and the service life of the damping characteristic is effectively prolonged; a coating crystal formed on a fiber surface by organic small molecules and crystallized fiber construct a community, a channel for converting sound energy into thermal energy is provided by a middle hole in the fiber, and a thermal energy consumption channel is provided by the crystalized fiber community, so that higher sound absorbing performance is achieved when the fiber content of the material is lower; and the material has higher mechanical performance, so that the composite material can be taken as a structural material or can be used together with other structural materials.

Description

technical field [0001] The invention belongs to the field of engineering materials, and relates to a manufacturing method of a high-performance sound-absorbing and damping vibration-reducing ternary composite material, more specifically, to the development of vibration-absorbing, sound-absorbing and noise-reducing engineering materials. Background technique [0002] The research on polymer damping materials mainly focuses on the field of damping and vibration reduction. At present, the modification method of adding small organic molecules to polymers to form a hybrid system is considered to be the most effective new method to develop high-performance damping materials, but this The formation of the hybrid state in the first method is caused by the combined action of the polar polymer and the small organic molecule due to the intermolecular hydrogen bond and "quenching". When used at ambient temperature, this hybrid effect will lose its original high damping characteristics d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/28C08L67/00C08K5/13B29B7/00B29C43/58
Inventor 姜生蔡永东
Owner NANTONG TEXTILE VOCATIONAL TECH COLLEGE