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Heat Insulation Material And Device Using Same

A technology of heat insulation and carbon materials, applied in heat exchange equipment, lighting and heating equipment, mechanical equipment, etc., can solve the problem of low thermal conductivity, achieve the effect of reducing heat transfer and preventing burning

Active Publication Date: 2018-06-12
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it has a lower thermal conductivity than still air

Method used

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  • Heat Insulation Material And Device Using Same
  • Heat Insulation Material And Device Using Same
  • Heat Insulation Material And Device Using Same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0119] Hereinafter, this embodiment will be described based on examples. However, this embodiment is not limited to the following examples. All reactions were performed under atmospheric conditions.

[0120]

[0121] In addition, in the examples, the heat insulating material 108 in which the carbon material 114 was added and the heat insulating material 110 in which the carbon material 114 was not added were produced, and the following respective measurements were performed.

[0122]

[0123] In the thermal conductivity measurement, a heat flow meter HFM 436Lamda (manufactured by NETZCH) and a TIM tester (manufactured by AnalysysTech) were used.

[0124]

[0125] In addition, a UL94 vertical burning test was performed to evaluate the flame retardancy of the heat insulating material 108 and the heat insulating material 110 . UL refers to the safety standards for electrical equipment developed and approved by UNDERWRITERS LABORATORIES INC. of the United States. It can e...

Embodiment 2

[0158] In water glass aqueous solution (Tosoh Industry Co., Ltd.), add self-dispersing graphene oxide (Sigma-Aldrich, 4mg / ml in H 2 O) and water to prepare raw materials (SiO 2 Concentration 6%, graphene oxide GO concentration 0.5%). Except that the concentration of graphene oxide was increased to 0.5%, a sheet was produced under the same process conditions as in Example 1.

[0159] As a result, heat insulating material 108 having an average thickness of 0.88 mm and a thermal conductivity of 0.020 W / mK was obtained. The filling rate of the silica xerogel 115 at this time was 44.6% by weight. V0 in the UL94 vertical burning test. In addition, as a result of DSC measurement, the thermal decomposition temperature (exothermic peak) of the organic modification group was 550° C. or higher, which was shifted to the high temperature side by 190° C. or higher than when the carbon material 114 was not added. In the cone calorimetry test, in the 20-minute non-combustible material tes...

Embodiment 3

[0161] In aqueous solution of water glass (Tosoh Sangyo Co., Ltd.), add self-dispersing carbon black (Tokai carbon, Aqua black 16219.2wt% in H as carbon material 114 2 O) and water to prepare raw materials (SiO 2 Concentration 6%, carbon black CB concentration 0.1%). To 20.5 g of this dispersion, 3.6 parts by weight (0.74 g) of concentrated hydrochloric acid was added as an acid catalyst, followed by stirring to prepare a sol solution. Sheets were produced under the same process conditions as in Example 1 except that the carbon material was changed to carbon black.

[0162] As a result, heat insulating material 108 having an average thickness of 0.88 mm and a thermal conductivity of 0.019 W / mK was obtained. The filling rate of the silica xerogel 115 at this time was 45.9% by weight. V0 in the UL94 vertical burning test. In addition, as a result of DSC measurement, the thermal decomposition temperature (exothermic peak) of the organic modification group was 550° C. or highe...

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Abstract

An object of the disclosure is to provide heat insulation materials that combine high heat insulation properties realizing effective heat insulation, and flame retardancy realizing prevention of firespreading, and devices using the same. In order to achieve this object, disclosed are heat insulation materials, including: a silica xerogel; a carbon material; unwoven fabric fibers that retains thesilica xerogel, and the carbon material. A three-component composite layer that includes the silica xerogel, the carbon material, and the unwoven fabric fibers; a two-component composite layer that isplaced on one side of the three-component composite layer, that does not include a same type of unwoven fabric fibers as the unwoven fabric fibers of the three-component composite layer, and that includes a same type of silica xerogel as the silica xerogel of the three-component composite layer, and a same type of carbon material as the carbon material of the three-component composite layer; anda monolayer that is placed on an other side of the three-component composite layer, and that includes a same type of silica xerogel as the silica xerogel of the three-component composite layer. Further disclosed are devices, including the above-described heat insulation material, wherein the heat insulation material serves as a part of a heat-insulation or refrigeration structure, or is placed between a heat-producing component and a casing.

Description

technical field [0001] The present invention relates to a heat insulating material and a device using the same. In particular, it relates to a flame-retardant heat insulating material and equipment using the same. Background technique [0002] In recent years, in the fields of automobiles and industrial equipment, it is necessary to ensure heat flow control, safety, and flame spread prevention in limited and narrow spaces. Therefore, there is a demand for a high-performance heat insulating material that has not been conventionally achieved, such as excellent heat insulating properties that can effectively block heat even if it is thin, flame retardancy, and heat resistance. [0003] Therefore, flame-retardant polyurethanes to which flame retardants are added are being developed. In the flame-retardant polyurethane, a general brominated flame retardant or the like is used as the flame retardant for the resin. These are mechanisms for preventing progress of combustion based...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B9/00B32B9/04D06M11/79C04B30/02
CPCB32B5/028B32B9/00B32B9/007B32B9/047C04B30/02D06M11/79B32B2250/02B32B2250/03B32B2307/304B32B2307/3065B32B2605/08C04B14/064C04B14/022C04B16/06F16L59/029F16L59/06F16L59/145C09K21/02F28F13/003F28F21/02F28F21/04F28F2270/00
Inventor 及川一摩丰田庆酒谷茂昭光明寺大道大城达弘和田享
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD