Waterproof heat insulation sandwich layer used for waterproof heat insulation surface materials

A interlayer and fabric technology, applied in applications, protective clothing, layered products, etc., can solve the problems of poor air permeability and poor heat preservation ability of waterproof and heat-insulating fabrics, and achieve the effect of soft texture, strong weather resistance, and good waterproof function

Active Publication Date: 2010-08-04
黑龙江德明科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problems of poor air permeability and poor thermal insulation ability of existing waterpr

Method used

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  • Waterproof heat insulation sandwich layer used for waterproof heat insulation surface materials
  • Waterproof heat insulation sandwich layer used for waterproof heat insulation surface materials
  • Waterproof heat insulation sandwich layer used for waterproof heat insulation surface materials

Examples

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specific Embodiment approach 1

[0023] Specific Embodiment 1: The waterproof and heat-insulating interlayer used for waterproof and heat-insulating fabrics in this embodiment is composed of hydrophobic airgel powder filler 2 and polytetrafluoroethylene sealing outer layer 1 from the inside to the outside, and the hydrophobic airgel powder The bulk filler 2 is evenly spread in the Teflon sealing outer layer 1, and the thickness of the waterproof and heat-insulating interlayer is controlled to be 0.5 mm to 30 mm.

[0024] The structural diagram of the waterproof and heat-insulating interlayer of this embodiment is as follows: figure 1 shown.

[0025] In this embodiment, the waterproof and heat-insulating interlayer is composed of a polytetrafluoroethylene sealing outer layer with waterproof and breathable functions and a loose and breathable hydrophobic airgel powder. The thermal conductivity of the waterproof and heat-insulating interlayer is 0.025-0.05W / m·K.

[0026] The waterproof and heat-insulating int...

specific Embodiment approach 2

[0028] Specific embodiment two: the difference between this embodiment and specific embodiment one is that the hydrophobic airgel powder filler 2 is one of silica aerogel, zirconia aerogel and alumina aerogel, both A mixture of species or a mixture of all three. Other parameters are the same as in the first embodiment.

[0029] In this embodiment, when the hydrophobic airgel powder filler 2 is a mixture of two or three of silica aerogel, zirconia aerogel and alumina aerogel, the mixing ratio is arbitrary Compare.

[0030] Considering the use environment of the waterproof and breathable interlayer in this embodiment, water vapor is unavoidable, so the hydrophobic airgel is preferred. In order to avoid the influence of acidic environments such as acid rain, airgel that can maintain hydrophobicity for a long time, even in a slightly acidic environment, is particularly preferred, such as silica airgel, ferric oxide aircondensation glue or alumina airgel.

specific Embodiment approach 3

[0031] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that the particle size of the hydrophobic airgel powder filler 2 is 10 μm to 1 mm. Other parameters are the same as those in Embodiment 1 or Embodiment 2.

[0032] In this embodiment, the particle size of the hydrophobic airgel powder filler 2 is larger than the micropore diameter of the waterproof and air-permeable sealing outer layer 1, so as to prevent the leakage of the hydrophobic airgel powder, improve the comfort of use, and prolong the service life.

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Abstract

The invention provides a waterproof heat insulation sandwich layer used for waterproof heat insulation surface materials, which relates to a waterproof heat insulation sandwich layer. The invention solves the problems of poor ventilation performance and poor heat insulation capability of the existing waterproof heat insulation surface materials. The waterproof heat insulation sandwich layer of the invention consists of hydrophobic aerogel powder body filling materials and a polyfluortetraethylene sealing outer layer from inside to outside, wherein the hydrophobic aerogel powder body filling materials are uniformly paved and spread in the polyfluortetraethylene sealing outer layer, and the thickness of the waterproof heat insulation sandwich layer is controlled in a range between 0.5 and 30 mm. The waterproof heat insulation sandwich layer has the heat conductivity coefficient between 0.025 and 0.05 W/m*K, and has good heat insulation and thermal isolation effect. The polyfluortetraethylene used as the outer layer has good waterproof function. Because of a polyfluortetraethylene microcellular structure and the flowability of the aerogel powder body, the waterproof heat insulation sandwich layer has good ventilation performance. Compared with the existing heat insulation waterproof materials, the invention has the advantages that when the same heat insulation effect is reached, the waterproof heat insulation sandwich layer of the invention has small thickness, light weight, flexible texture, convenient application and wide application field.

Description

technical field [0001] The invention relates to a waterproof and heat-insulating interlayer. Background technique [0002] With the invention and application of more and more new materials, people's quality of life has been greatly improved; at the same time, it has become our constant pursuit to develop more civilian and practical materials. Especially in the aspect of inventing novel waterproof and warm-keeping fabrics, many people have put forward proposals. From the current point of view, the proposed scheme can be summarized as the following. [0003] In terms of waterproof fabrics: 1. Waterproof fabric solution. Most of the waterproof clothing currently on the market are made of polyester fabrics. Polyester fabrics themselves contain chemical fiber components, which will age and harden after wearing for a long time. Frequent friction with the skin may cause allergies. [0004] 2, coating scheme, patent CN2191878 discloses a kind of scheme of non-radioactive luminous ...

Claims

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Application Information

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IPC IPC(8): B32B5/16B32B27/32A41D31/02
Inventor 李垚葛邓腾杨丽丽赵九蓬范曾
Owner 黑龙江德明科技开发有限公司
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