Polyurethane composite plate

A technology of composite board and polyurethane board, which is applied in the direction of synthetic resin layered products, transportation and packaging, chemical instruments and methods, etc., can solve the problems of high cost, strong pungent smell, irritating human skin, etc., and achieve product quality Light, no dust pollution, good heat and sound insulation effect

Inactive Publication Date: 2012-02-15
LIYANG SHANHU IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the polyurethane composite board used for heat and sound insulation of automobile engines is composed of polyurethane board and adhesive tape soaked in a large amount of glue, which is not only expensive, but also has a strong pungent smell and serious pollution during the molding process
[0003] Glass wool felt is also used for heat insulation and sound insulation of automobile engines, but because the size of glass dust in glass wool felt is extremely small, it is easy to enter the human body, but it is not easy to be discharged by the human body, and it is irritating to human skin. Small red dots appear after contact
Thirdly, glass wool needs to add a large amount of adhesive during the preparation process, so it emits a strong pungent smell and serious pollution during the molding process, which cannot meet the current VOC (volatile organic compound) standard

Method used

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  • Polyurethane composite plate
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Examples

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Embodiment Construction

[0017] The determination of thermal conductivity refers to GB / T 1C295-2008 "Determination of Stable Thermal Resistance and Related Properties of Thermal Insulation Materials - Heat Flow Meter

[0018] Law".

[0019] The sound absorption coefficient is measured with reference to ISO10534-2 (corresponding national standard GB / T18696.2-2002), and is measured by transfer function method.

[0020] Such as figure 1 As shown, a polyurethane composite board is composed of polyurethane board, phenolic resin, hot melt adhesive film and non-woven fabric

[0021] Combination, that is, the composition of the composite board from top to bottom is non-woven fabric, hot-melt adhesive film, phenolic resin, polyurethane board, phenolic resin, hot-melt adhesive film, and non-woven fabric. The parts by mass of each layer are: 26 parts of non-woven fabric, 10 parts of hot melt adhesive film, 8 parts of phenolic resin, and 56 parts of polyurethane board. The density of polyurethane board is 17kg...

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Abstract

The invention discloses a polyurethane composite plate, which comprises a polyurethane plate, phenolic resin and a non-woven fabric, wherein the phenolic resin is compounded between the polyurethane plate and the non-woven fabric. The polyurethane composite plate has good thermal insulation and sound insulation effects without dust pollution; a great amount of adhesive is not required to be added in the preparation process, so thick odor in the pressing process is avoided; and the product is light.

Description

technical field [0001] The invention relates to a polyurethane composite board, in particular to a polyurethane composite board used for heat and sound insulation of automobile engines. Background technique [0002] At present, the polyurethane composite sheet used for heat insulation and sound insulation of automobile engines is composed of polyurethane sheet and adhesive tape soaked in a large amount of glue. [0003] Glass wool felt is also used for heat insulation and sound insulation of automobile engines, but because the size of glass dust in glass wool felt is extremely small, it is easy to enter the human body, but it is not easy to be discharged by the human body, and it is irritating to human skin. Small red dots appear on contact. Thirdly, glass wool needs to add a large amount of adhesive during the preparation process, so it emits a strong pungent odor and serious pollution during the molding process, and cannot meet the current VOC (volatile organic compound) ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/08B32B27/42B32B27/40B32B27/12B32B7/12B60R13/08
Inventor 李田生
Owner LIYANG SHANHU IND CO LTD
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