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A kind of reinforced composite heat insulation material and preparation method thereof

A thermal insulation material and reinforced technology, applied in the field of thermal insulation materials, can solve the problems of low pressure, failure to meet the requirements of Class A flame retardant, easy peeling, etc., to reduce the air circulation path, improve the flame retardant effect and mechanical properties, The effect of improving composite strength

Active Publication Date: 2020-07-28
ZHEJIANG PENGYUAN NEW MATERIAL TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aluminum foil bubble insulation material is a kind of good green building insulation material. It generally adopts the structural design of multi-layer aluminum foil + air bag + aluminum foil, which is light in weight and low in heat conduction. If the flame retardant is improved, the flame retardant effect is not ideal, and it cannot meet the requirements of Class A flame retardant; at the same time, the mechanical strength of this insulation material is poor, and the pressure it can bear alone is very low, and the layers are easy to peel off, which cannot meet the pressure bearing requirements. occasions with certain requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A reinforced composite heat insulation material, comprising sequentially arranged aluminum foil, modified PET film, modified polyethylene adhesive film, stainless steel grid, modified gas retardant bag, modified polyethylene adhesive film, fiber grid, Flame-retardant and anti-glare polypropylene film; among them, the aluminum foil is a high-mirror aluminum foil with a purity ≥ 99.99%, the modified PET film is a PET film modified by SiC / Mo-PDA, and the modified gas-resistant cells are hexagons arranged in a honeycomb shape For the airbag, the fiber mesh is a composite woven mesh of nylon fiber and carbon fiber.

[0027] The preparation method of the above-mentioned reinforced composite thermal insulation material comprises the following steps:

[0028] a) Preparation of SiC / polydopamine complex: Disperse the nano-SiC powder in ethanol, adjust the pH to 10-11 with ammonia water, add H 24 Mo 7 N 6 o 24 4H 2 O (ammonium molybdate tetrahydrate), adjust the pH to 9-9.5, ...

Embodiment 2

[0036] A reinforced composite heat insulation material, comprising sequentially arranged aluminum foil, modified PET film, modified polyethylene adhesive film, stainless steel grid, modified gas retardant bag, modified polyethylene adhesive film, fiber grid, Flame-retardant and anti-glare polypropylene film; among them, the aluminum foil is a high-mirror aluminum foil with a purity ≥ 99.99%, the modified PET film is a PET film modified by SiC / W-PDA, and the modified gas-resistant bag is hexagonal arranged in a honeycomb shape For the airbag, the fiber mesh is a composite woven mesh of nylon fiber and carbon fiber.

[0037] The preparation method of the above-mentioned reinforced composite thermal insulation material comprises the following steps:

[0038]a) Preparation of SiC / polydopamine complex: Disperse the nano-SiC powder in ethanol, adjust the pH to 10-11 with ammonia water, add Na 2 WO 4 2H 2 O (sodium tungstate dihydrate), adjust the pH to 9-9.5, then add dropwise 98...

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Abstract

The invention provides a nanometer composite thermal insulation material and a preparation method of the nanometer composite thermal insulation material. The nanometer composite thermal insulation material is characterized by comprising an aluminum foil, a modified PET (polyethylene terephthalate) film, a modified polyethylene adhesive film, a stainless steel grid, a modified flame retardant air bag, a modified polyethylene adhesive film, a fiber grid, and a flame retardant anti-glare polypropylene film which are sequentially arranged; and the PET film is a SiC / polydopamine complex modified PET film. By improving the composite strength of a skeleton and reducing the ventilation path, the flame retardant effect and the mechanical strength of the aluminum foil bubble thermal insulation material are improved.

Description

【Technical field】 [0001] The invention relates to the field of thermal insulation materials, in particular to a reinforced composite thermal insulation material and a preparation method thereof. 【Background technique】 [0002] The energy consumed by industrial buildings and maintaining a comfortable indoor temperature accounts for more than 30% of the world's total annual energy consumption. The use of thermal insulation materials can improve the energy utilization rate of buildings and reduce energy consumption. However, the thermal conductivity of inorganic thermal insulation materials is generally high, traditional organic thermal insulation materials are generally flammable, and the use of organic flame retardants will cause harm to the environment and human health. Therefore, the importance of thermal insulation materials with good fire performance in modern buildings has become more and more obvious. How to further improve the combustion performance of thermal insulati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B15/20B32B15/18B32B15/09B32B27/36B32B15/02B32B27/12B32B3/26B32B7/10B32B3/12B32B27/32B32B27/18B32B37/10B32B37/06B29D7/01C08L67/02C08L79/04C08K3/34C08J5/18C08J3/24
CPCB29D7/01B32B3/12B32B3/26B32B7/10B32B15/02B32B15/09B32B15/18B32B15/20B32B27/12B32B27/18B32B27/32B32B27/36B32B37/06B32B37/10B32B2307/304B32B2307/3065B32B2307/50C08J3/246C08J5/18C08J2367/02C08J2479/04C08K3/34
Inventor 张道静裴作清金伟浩李守元高勇
Owner ZHEJIANG PENGYUAN NEW MATERIAL TECH GRP CO LTD
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