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A kind of method for preparing nanoporous thermal insulation blanket

A nanoporous and thermal insulation technology, applied in chemical instruments and methods, mechanical equipment, heat exchange equipment, etc., can solve the problems of poor flexibility of nanoporous thermal insulation boards, achieve excellent thermal stability and flexibility, good thermal insulation, good insulation heat effect

Active Publication Date: 2016-07-13
中亨新型材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is that in the prior art, high-silica glass fiber cloth is used to coat the existing nanoporous heat-insulating material and then sewed with high-silica glass fiber sewing thread, thereby preparing nanoporous heat-insulating materials. In order to solve the problem of poor flexibility of the board, a nanoporous thermal insulation felt with good flexibility and high temperature resistance and its preparation method are provided

Method used

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  • A kind of method for preparing nanoporous thermal insulation blanket

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Embodiment 1

[0037] This embodiment provides a nanoporous thermal insulation blanket, the structure of which includes a first flexible surface layer with a thickness ratio of 1:20:1, a nanoporous thermal insulation layer and a second flexible surface layer, and the nanoporous thermal insulation layer is filled in The first flexible surface layer and the second flexible surface layer are quilted so that the first flexible surface layer, the nanoporous thermal insulation layer and the second flexible surface layer are connected as one;

[0038] Both the first flexible surface layer and the second flexible surface layer are made of tarpaulin, and both the first flexible surface layer and the second flexible surface layer are provided with two quilting intervals with a size of 30mm×30mm;

[0039] The nanoporous thermal insulation layer includes a thermal insulation layer, an anti-radiation layer and a reinforcement layer that are sequentially laid upward along the surface of the first flexible ...

Embodiment 2

[0047] This embodiment provides a nanoporous thermal insulation blanket, the structure of which includes a first flexible surface layer with a thickness ratio of 1:6:1, a nanoporous thermal insulation layer and a second flexible surface layer, and the nanoporous thermal insulation layer is filled in The first flexible surface layer and the second flexible surface layer are quilted so that the first flexible surface layer, the nanoporous thermal insulation layer and the second flexible surface layer are connected as one;

[0048] Both the first flexible surface layer and the second flexible surface layer are made of ceramic fiber cloth, and both the first flexible surface layer and the second flexible surface layer are provided with nine quilting intervals with a size of 100mm×100mm;

[0049] The nanoporous thermal insulation layer includes a reinforcement layer, an anti-radiation layer and a thermal insulation layer that are sequentially laid upward along the surface of the fir...

Embodiment 3

[0057] This embodiment provides a nanoporous thermal insulation felt, the structure of which includes a first flexible surface layer with a thickness ratio of 1:10:1, a nanoporous thermal insulation layer and a second flexible surface layer, and the nanoporous thermal insulation layer is filled in The first flexible surface layer and the second flexible surface layer are quilted so that the first flexible surface layer, the nanoporous thermal insulation layer and the second flexible surface layer are connected as one;

[0058] The materials of the first flexible surface layer and the second flexible surface layer are respectively alkali-free electronic cloth and non-woven fabric, and the first flexible surface layer and the second flexible surface layer are provided with 12 pieces with a size of 50mm×50mm Quilting interval;

[0059] The nanoporous thermal insulation layer includes a thermal insulation layer, an anti-radiation layer and a reinforcement layer that are sequential...

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Abstract

The invention relates to a method for preparing a nano-porous heat insulating felt, wherein the structure of the nano-porous heat insulating felt comprises a first flexible surface layer, a nano-porous heat insulating layer and a second flexible surface layer; the nano-porous heat insulating layer is filled between the first flexible surface layer and the second flexible surface layer, and a part of the edge is quilted by adopting a sewing thread, so that a nano-porous heat insulating raw material layer is preliminarily limited inside a sewing region of the flexible surface layers, and then a pressure forming process and a region division process are performed. The method disclosed by the invention has the advantage that the nano-porous heat insulating raw material is already preliminarily limited inside the sewing region of the flexible surface layers during the pressure forming process, so the nano-porous heat insulating felt with good flexibility can be prepared without applyingtoo large pressure during a subsequent pressurization process.

Description

technical field [0001] The invention relates to a method for preparing a nanoporous thermal insulation blanket, which belongs to the technical field of thermal insulation materials. Background technique [0002] The concept of superinsulation material (Superinsulation) was proposed by American HuntAJ et al. at the International Materials Engineering Conference in 1992. It refers to the thermal insulation material whose thermal conductivity is lower than that of "still air" under specific conditions of use. There are a large number of nanopores in the structure of silica airgel materials, and more than 85% of the pore diameters are less than 50nm. The mean free path of oxygen and nitrogen molecules in the air is about 70nm. When the pore diameter is smaller than the mean free path of the gas When , the air molecules can be regarded as "stationary", which effectively eliminates the convective heat transfer of the gas. At the same time, the ultra-high porosity limits the solid-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B37/10B32B38/00F16L59/02
Inventor 王璐
Owner 中亨新型材料科技有限公司