A kind of environment-friendly flame-retardant sound insulation material and its preparation method and application

A sound insulation material and an environmentally friendly technology, applied in the field of polymer-based sound insulation materials and their preparation, can solve the problems of the sound insulation material not having flame retardant properties, excessive ophthalmic banned substances, softening and deformation, etc., to improve VOC volatilization, Good flame retardant performance, excellent sound insulation effect

Active Publication Date: 2021-04-23
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After testing, the sound insulation materials made of PVC and EVA substrates have certain environmental protection problems. Among them, PVC-based sound insulation materials are easy to cause the prohibited substances of phthalates to exceed the standard due to the addition of a large amount of plasticizers. EVA-based sound insulation materials are due to its vinyl acetate The structure has a large odor and a high content of volatile organic compounds, which will cause certain harm to the human body during use
Patent 201610206143.7 discloses a low-volatility and environmentally friendly PBE sound insulation film in the car and its preparation method. The resin matrix used in this patent is an environmentally friendly propylene-based elastomer, which can solve the environmental protection problems of the matrix resin. However, the general softening point of propylene-based elastomers is Low (less than 50°C), softening and deformation will occur when used at high temperatures, and the sound insulation material of this patent does not have flame retardancy, which limits its application to a certain extent

Method used

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  • A kind of environment-friendly flame-retardant sound insulation material and its preparation method and application
  • A kind of environment-friendly flame-retardant sound insulation material and its preparation method and application
  • A kind of environment-friendly flame-retardant sound insulation material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] An environmentally friendly flame-retardant and sound-insulating material, comprising the following components in terms of mass percentages: 18 parts of propylene-based elastomer, 5 parts of linear low-density polyethylene, 2 parts of random copolymerized polypropylene, 35 parts of heavy filler, and a flame retardant 40 parts, 2 parts of auxiliary agent. Among them, the heavy filler is barium sulfate, and the flame retardant is magnesium hydroxide; the auxiliary agent includes the following components in mass percentage: 0.5 parts of rubber oil, 1 part of stearic acid, and 0.5 parts of silane coupling agent.

[0034] The preparation method of the above-mentioned environmentally friendly flame-retardant sound-insulating material comprises the following steps:

[0035] (1) Put each component into the internal mixer in proportion and initially melt and mix at 150-170° C., and then add the initially melt-mixed melt to a twin-screw extruder through a cone double feeder to fu...

Embodiment 2

[0039] An environmentally friendly flame-retardant and sound-insulating material, comprising the following components by mass percentage: 12 parts of propylene-based elastomer, 10 parts of linear low-density polyethylene, 3 parts of block copolymer polypropylene, 45 parts of heavy filler, and flame retardant 30 parts, 3 parts of auxiliary agent. Among them, the heavy filler is iron powder, and the flame retardant is ammonium polyphosphate; the auxiliary agent includes the following components in mass percentage: 1 part of rubber oil, 1 part of stearic acid, and 1 part of silane coupling agent.

[0040] The preparation method of the above-mentioned environmentally friendly flame-retardant sound-insulating material comprises the following steps:

[0041] (1) Put each component into the internal mixer in proportion and initially melt and mix at 150-170° C., and then add the initially melt-mixed melt to a twin-screw extruder through a cone double feeder to further melt and mix eve...

Embodiment 3

[0045] An environmentally friendly flame-retardant and sound-insulating material, comprising the following components in terms of mass percentages: 20 parts of propylene-based elastomer, 4 parts of linear low-density polyethylene, 2 parts of random copolymerized polypropylene, 39 parts of heavy filler, and a flame retardant 35 parts, 2.5 parts of auxiliary agent. Among them, the heavy filler is calcium carbonate, and the flame retardant is aluminum hypophosphite; the auxiliary agent includes the following components in mass percentage: 1 part of rubber oil, 1 part of stearic acid, and 0.5 part of silane coupling agent.

[0046] The preparation method of the above-mentioned environmentally friendly flame-retardant sound-insulating material comprises the following steps:

[0047] (1) Put each component into the internal mixer in proportion and initially melt and mix at 150-170° C., and then add the initially melt-mixed melt to a twin-screw extruder through a cone double feeder t...

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Abstract

The invention discloses an environmentally friendly flame-retardant sound-insulating material, which comprises the following components in terms of mass percentage: 12-20% of propylene-based elastomer; 4-10% of linear low-density polyethylene; 2-5% of polypropylene; Filler 30‑50%; flame retardant 30‑40%; additive 1.2‑4.5%. The present invention also provides a preparation method and application of the above-mentioned environment-friendly flame-retardant and sound-insulating material. The invention uses the environmentally friendly propylene-based elastomer as the matrix resin, and the components act synergistically, so that the finally obtained sound insulation material has excellent sound insulation performance, flame retardancy, environmental protection and heat resistance.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a polymer-based sound-insulating material and its preparation method and application. Background technique [0002] Sound insulation materials can block sound transmission or reduce transmitted sound energy, thereby reducing noise. Traditional sound insulation materials generally follow the law of mass, that is, the greater the surface density of the material, the better its sound insulation performance. Therefore, to improve the sound insulation performance of the material, it is necessary to increase the material density or thickness, which will be subject to many restrictions in practical engineering applications. Polymer-based sound insulation materials are a type of sound insulation materials developed in recent years. They not only have better sound insulation performance than traditional sound insulation materials, but also have many excellent properties such a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/10C08L23/08C08L23/14C08K3/30C08K3/22C08L53/00C08K3/08C08K3/32C08K3/26
CPCC08K2003/0856C08K2003/2224C08K2003/265C08K2003/3045C08K2003/323C08L23/10C08L2201/02C08L23/0815C08L23/14C08K3/30C08K3/22C08L53/00C08K3/08C08K3/32C08K3/26
Inventor 颜渊巍熊昌义高玮胡钊黄自华
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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