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Macromolecular composite foam material as well as preparation method and application thereof

A composite foam and polymer technology, which is applied in the direction of chemical instruments and methods, layered products, synthetic resin layered products, etc., can solve the problems that the sound insulation effect of composite materials cannot be improved, and achieve the improvement of sound absorption coefficient and sound absorption effect Effect

Active Publication Date: 2013-10-30
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this can only improve the flame retardancy, not the sound insulation effect of the composite

Method used

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  • Macromolecular composite foam material as well as preparation method and application thereof
  • Macromolecular composite foam material as well as preparation method and application thereof
  • Macromolecular composite foam material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042]

[0043] Directly mix 60 parts of 75% benzenesulfonic acid and 90 parts of 85% phosphoric acid (liquid) evenly for later use.

[0044] In a beaker, mix and stir all the above ingredients except the acid premix for 5 minutes, preheat for 6 minutes to make the temperature of the mixture 30°C, then add the acid premix, and stir all the mixture manually for 1 minute, pour the mixture Put it into the pre-heated mold at 110°C for foaming and curing for 2 hours, and the polymer composite foam material is very light, with a density of only 25kg / m 3 , the foam opening rate still reaches more than 90%, which can maintain a good sound-absorbing effect. According to the GBJ 47-83 reverberation chamber method sound absorption coefficient measurement specification, the sound absorption coefficient of the composite foam for sound waves with a frequency greater than 1kHz is 0.62. Many evenly distributed expanded polystyrene beads can be clearly found on the surface of the foam, wit...

Embodiment 2

[0049]

[0050] Directly mix 60 parts of 75% benzenesulfonic acid and 90 parts of 85% phosphoric acid (liquid) evenly for later use.

[0051] In a beaker, mix and stir all the above ingredients except the acid premix for 6 minutes, preheat for 7 minutes to make the mixture temperature 30°C, then add the acid premix, and stir all the mixture manually for 1 minute, pour the mixture Put it into the pre-heated mold at 110°C for foaming and solidification for 2 hours, and the density of the prepared polymer composite foam material is 127kg / m 3 , the foam opening rate still reaches more than 90%, which can maintain a good sound-absorbing effect. According to the GBJ 47-83 reverberation chamber method sound absorption coefficient measurement specification, the sound absorption coefficient of the composite foam for sound waves with a frequency greater than 1kHz is 0.81. From the surface of the foam, many evenly distributed expanded polystyrene beads can be clearly found, with a di...

Embodiment 3

[0055]

[0056] Directly mix 60 parts of 75% benzenesulfonic acid and 90 parts of 85% phosphoric acid (liquid) evenly for later use.

[0057] In a beaker, mix and stir all the above ingredients except the acid premix for 4 minutes, preheat for 5 minutes to make the temperature of the mixture 30°C, then add the acid premix, and stir all the mixture vigorously by hand for 1 minute, pour the mixture Put it into the pre-heated mold at 110°C for foaming and curing for 2.5 hours, and the density of the prepared polymer composite foam material is 10kg / m 3 , the foam opening rate still reaches more than 90%, which can maintain a good sound-absorbing effect. According to the GBJ 47-83 reverberation chamber method sound absorption coefficient measurement specification, the sound absorption coefficient of composite foam for sound waves with frequencies greater than 1kHz is 0.94. Many evenly distributed expanded polystyrene beads can be clearly found on the surface of the foam, with a...

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Abstract

The invention belongs to the technical field of macromolecular materials and discloses a macromolecular composite foam material as well as a preparation method and application thereof. The material is formed by the following components in parts by weight: 50-500 parts of polystyrene bead, 500-950 parts of melamine formaldehyde resin, 100-200 parts of a foaming agent, 100-200 parts of a curing agent, 0-200 parts of a surface active agent, 0-150 parts of a flexibilizer and 0-200 parts of an additive. The preparation method comprises the following steps of: stirring 50-500 parts of polystyrene bead, 500-950 parts of melamine formaldehyde resin, 100-200 parts of foaming agent, 0-200 parts of surface active agent, 0-150 parts of flexibilizer and 0-200 parts of additive for 4-6 minutes, preheating the components for 5-10 min so that the temperature of a mixture is 30-40 DEG C, then adding 100-200 parts of curing agent, stirring for 1-2 minutes, pouring a second mixture into a preheated die for foaming and curing for 2-3 hours, thereby obtaining the macromolecular composite foam material. The invention also discloses application of the macromolecular composite foam material in serving as an insulation plate. The macromolecular composite foam material provided by the invention has high anti-flaming property and a good sound isolation effect.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a polymer composite foam material, a preparation method and an application thereof. Background technique [0002] Polymer foams are widely used in buildings for sound and heat insulation. Due to their excellent mechanical properties, high insulation value and low cost, polymer foams such as polystyrene foam are widely used as cores encased in steel plates to form cool insulating panels for rooms and factories. However, the main disadvantage of styrofoam insulation boards is that they are very easy to burn or melt in a fire, and the sound insulation effect is not obvious. On the other hand, the melamine foam material has excellent flame retardancy and sound insulation effect, but it is quite expensive and the melamine foam material has poor adhesion to the steel plate. [0003] Because the polystyrene foam insulation board is not resistant to high temperature, easy to bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/28C08L25/06C08L97/02C08K13/04C08K7/14C08K7/06C08K7/28C08K7/24C08K3/04C08J9/14B32B3/12B32B7/12B32B27/06B32B27/42B32B27/30
Inventor 储卫国
Owner HEFEI GENIUS NEW MATERIALS
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