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Low-density sound-absorbing and insulating polymer composite material and preparation method thereof

A composite material and polymer technology, applied in the field of polymer composite materials, can solve the physical and mental health hazards of drivers and urban residents, and the problems of polymer composite materials that have not been seen yet, achieve good sound absorption and insulation performance, and simple production process , The effect of less equipment investment

Inactive Publication Date: 2016-03-30
LESHAN MING SQUARE PLASTIC PROD TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, we don’t need to deny that the increasingly serious traffic noise has also caused serious harm to the physical and mental health of drivers, passengers and urban residents. Traffic noise has always been a source of noise pollution that environmental protection administrative departments focus on monitoring and requiring control.
However, so far, we have not seen literature reports on the technical effects of these polymer composites in actual use.

Method used

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  • Low-density sound-absorbing and insulating polymer composite material and preparation method thereof
  • Low-density sound-absorbing and insulating polymer composite material and preparation method thereof
  • Low-density sound-absorbing and insulating polymer composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A preparation method for producing a low-density sound-absorbing and insulating polymer composite material, which is carried out as follows:

[0046] ① Measuring ingredients:

[0047] First select the raw material:

[0048] The raw material of epoxy resin is bisphenol A epoxy resin, which has a viscosity of 12500mPa·s at 25°C and an epoxy equivalent of 189g / eq;

[0049] Polyetheramine EC311 is used as the raw material of curing agent;

[0050] Acetone is selected as the raw material of the resin diluent, and its normal pressure boiling point is 56.5°C;

[0051] Glass fiber cotton is made of extra-fine glass fiber cotton with a glass fiber diameter of 4.5 μm.

[0052] Then weigh the raw materials respectively according to the following weight ratio:

[0053] 100 parts of bisphenol A type epoxy resin,

[0054] Polyetheramine EC31130 parts,

[0055] 35 parts of acetone,

[0056] 30 parts of superfine glass fiber cotton raw materials with a glass fiber diameter of 4....

Embodiment 2

[0063] A preparation method for producing a low-density sound-absorbing and insulating polymer composite material, which is carried out as follows:

[0064] ① Measuring ingredients:

[0065] First select the raw material:

[0066] The raw material of epoxy resin is bisphenol F epoxy resin, which has a viscosity of 800mPa·s at 25°C and an epoxy equivalent of 280g / eq;

[0067] The raw material of the curing agent is oligomeric polyamide 650;

[0068] The raw material of the resin diluent is ethanol, whose boiling point at normal pressure is 78.4°C;

[0069] Glass fiber cotton is made of extra-fine glass fiber cotton with a glass fiber diameter of 8.0 μm.

[0070] Then weigh the raw materials respectively according to the following weight ratio:

[0071] 100 parts of bisphenol F type epoxy resin,

[0072] Oligopolyamide 65020 parts,

[0073] 10 parts of ethanol,

[0074] 6 parts of superfine glass fiber cotton raw materials with a glass fiber diameter of 8.0 μm.

[0075] ...

Embodiment 3

[0081] A preparation method for producing a low-density sound-absorbing and insulating polymer composite material, which is carried out as follows:

[0082] ① Measuring ingredients:

[0083] First select the raw material:

[0084] The raw material of epoxy resin is o-cresol novolac epoxy resin, which has a viscosity of 27000mPa·s at 25°C and an epoxy equivalent of 220g / eq;

[0085] The raw material of the curing agent is cycloaliphatic amine EC331;

[0086] The raw material of the resin diluent is toluene, and its normal pressure boiling point is 110.6°C;

[0087] Glass fiber cotton is made of extra-fine glass fiber cotton with a glass fiber diameter of 1.5 μm.

[0088] Then weigh the raw materials respectively according to the following weight ratio:

[0089] 100 parts of o-cresol novolac epoxy resin,

[0090] Cycloaliphatic amine EC33150 parts,

[0091] 95 parts of toluene,

[0092] 120 parts of superfine glass fiber cotton raw materials with a glass fiber diameter of...

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Abstract

The present invention discloses a low -density sound -absorbing polymer composite material and its preparation method. It uses resin diluent to reduce the viscosity of epoxy resin and then add curing agent to make a mixture solution.Fiber cotton is made of overall impregnation and solidification into the internal cloth with a single exit semi -enclosed sound -absorbing foaming pores.The material characteristics of good vocal attractive performance. In the process of dissemination of noise sound waves to the semi -closed sound -absorbing gas bubbles, the noise sound can be converted into the air to the air to the greatest extent.The present invention has a prominent advantage of simple craftsmanship, easy to produce and manufactured in low manufacturing.Excellent promotion and application prospects.

Description

technical field [0001] The invention relates to a polymer composite material and its preparation method, in particular to a low-density sound-absorbing and insulating polymer composite material and its preparation method, belonging to the technical field of polymer composite material production. Background technique [0002] In recent years, with the continuous advancement of my country's urbanization construction, it has provided an excellent development opportunity for the efficient and fast transportation industry. At present, the newly built intercity high-speed rail, light rail, expressway, inner city subway, and elevated road can be found everywhere. , It has brought great convenience to people's travel and cargo transportation industry. However, we don’t need to deny that the increasingly serious traffic noise has also caused serious harm to the physical and mental health of drivers, passengers and urban residents. Traffic noise has always been a source of noise pollut...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/02C08L63/04C08L63/00C08K7/14C08J9/14
Inventor 廖康平张军华廖敏周涛
Owner LESHAN MING SQUARE PLASTIC PROD TECH
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