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PVC flame-retardant bi-component sound insulation cotton and preparation method thereof

A sound-proof cotton and two-component technology, which is applied in the field of sound-proof cotton manufacturing, can solve problems such as poor tensile strength of sound-proof cotton, affecting the use of sound-proof cotton, and small smoke generation, so as to improve application prospects and value, and improve sound insulation and reduce Noise effect, the effect of simple and reasonable scientific design

Pending Publication Date: 2022-02-18
HUBEI TIANYUN NOISE REDUCTION & ANTIVIBRATION NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the advantages of inorganic flame retardants: low toxicity, good thermal stability; no precipitation, durable flame retardant effect; no corrosive gas; low price; The application of organic flame retardants is gradually replacing organic flame retardants, so the research on synthetic inorganic flame retardants is of great significance; but because organic flame retardants are still used in large quantities, it is advisable to use inorganic flame retardants in combination with organic flame retardants. way of transition
[0004] At present, the society's demand for sound insulation materials is growing rapidly, and traditional sound insulation materials can no longer meet people's higher requirements for environmental protection, decoration, and flame retardancy; and the tensile strength of general sound insulation cotton is not good. It is easy to break or form cracks during stretching, which will affect the use of sound insulation cotton

Method used

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  • PVC flame-retardant bi-component sound insulation cotton and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Please refer to figure 1 As shown, a PVC flame-retardant double-component sound insulation cotton, the sound insulation cotton includes a PVC flame-retardant layer 7 arranged on the outermost surface, the inner layer of the PVC flame-retardant layer 7 is set as a cortical buffer layer 8, and the inner layer of the cortical buffer layer 8 The layer is set as an elastic buffer layer 5; the inside of the elastic buffer layer 5 is divided into different chambers by elastic reinforcing ribs 6, and the inside of the chamber is evenly filled with a sound-insulating board layer 3 in the middle, a porous honeycomb sound-insulating layer 1 and The upper two-component cotton layer 2 and the lower two-component cotton layer 4; the bottom of the elastic buffer layer 5 is provided with a sound-insulating mesh layer 9, and the bottom of the sound-insulating mesh layer 9 is provided with a sound-insulating substrate layer 10, and the sound-insulating substrate layer 10 The lower part i...

Embodiment 2

[0033] The difference between this embodiment and embodiment 1 is:

[0034] In the chamber of the elastic buffer layer 5 divided by the elastic reinforcing rib 6, the sound insulation board layer 3 and the lower two-component cotton layer 4 are not filled in part of the chamber, forming a chamber filled with air or an inert gas, which can play a role Better noise reduction and noise reduction effect.

Embodiment 3

[0036] The difference between this embodiment and embodiment 1 is:

[0037]The porous honeycomb sound insulation layer 1, the upper two-component cotton layer 2, the sound insulation board layer 3 and the lower two-component cotton layer 4 inside the elastic buffer layer 5 are placed between the elastic buffer layer 5 and the cortical buffer layer 8, and pressed combined, so that a cavity appears inside the elastic buffer layer 5, and the fixed connecting rod 14 runs through the porous honeycomb sound insulation layer 1, the upper two-component cotton layer 2, the sound insulation board layer 3, the lower two-component cotton layer 4, the leather buffer layer 8 and the elastic buffer layer Layer 5 is fixedly connected, which also has a good sound insulation effect.

[0038] The PVC flame-retardant double-component sound insulation cotton of the present invention is coated on the surface of the sound-proof cotton by adding PVC flame-retardant materials, which can effectively fl...

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Abstract

The invention provides PVC flame-retardant bi-component sound insulation cotton and a preparation method thereof. The sound insulation cotton comprises a PVC flame-retardant layer arranged on the outermost surface, a leather buffer layer is arranged on the inner layer of the PVC flame-retardant layer, and an elastic buffer layer is arranged on the inner layer of the leather buffer layer. According to the PVC flame-retardant bi-component sound insulation cotton, the surface of the sound insulation cotton is coated with the PVC flame-retardant material, so that flame retardance and fire prevention can be effectively achieved, and the sound insulation cotton material of the inner layer is protected; the bi-component cotton with the sound insulation effect is stuffed into the elastomer, so that vibration generated by starting or braking of an automobile can be absorbed, noise can be effectively absorbed, and a goood sound insulation and noise reduction effect is achieved; a tearable structure is adopted, so that the sound insulation cotton can be simply disassembled and assembled from the riding lining so as to achieve replacement of the sound insulation cotton; all layers of the sound insulation cotton are combined into a whole in a press fit mode, and the inner layer of the sound insulation cotton is firmly fixed and does not slip off by arranging the spikes and the connecting rods; and by means of the simple, reasonable and scientific design, the sound insulation effect of the sound insulation cotton is improved.

Description

technical field [0001] The invention relates to the technical field of sound insulation cotton production, in particular to a PVC flame-retardant two-component sound insulation cotton and a preparation method thereof. Background technique [0002] Noise pollution is a major public hazard to the human living environment. It not only seriously damages our auditory nerves, cardiovascular system and nervous system, but also accelerates the aging of buildings and industrial machinery, affecting the precision and service life of instruments. As everyone pays more and more attention to the problem of noise control, various methods of sound insulation and noise reduction have also been born. However, the traditional sound insulation material - glass wool has many defects, such as low noise reduction coefficient, short service life, non-environmental protection, and easy to cause secondary pollution. replaced. Fibrous sound-absorbing materials can have good sound insulation effects...

Claims

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Application Information

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IPC IPC(8): C09J7/29B32B3/08B32B3/12B32B5/02B32B27/06B32B27/30B32B33/00B32B37/10
CPCC09J7/29B32B27/304B32B27/06B32B33/00B32B3/085B32B37/10B32B3/12B32B5/028C09J2427/006C09J2301/122C09J2400/243
Inventor 汪飞何卫军
Owner HUBEI TIANYUN NOISE REDUCTION & ANTIVIBRATION NEW MATERIAL