Preparation method for aerogel composite material

A composite material and aerogel technology, which is applied in the field of composite material preparation, can solve the problems of difficult mixing of aerogel and resin, and achieve the effects of large size and light weight, excellent thermal insulation performance, and improved utilization rate.

Active Publication Date: 2018-10-09
CHANGSHA XINGNA AEROGEL
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Problems solved by technology

[0004] In order to obtain a large-sized, high-strength and light-weight building energy-saving material with excellent thermal insulation properties, the solution of the present invention is as fol

Method used

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  • Preparation method for aerogel composite material

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Embodiment Construction

[0022] The present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the present invention. In addition, according to the description of this document, those skilled in the art can correspondingly combine the features in the embodiments of this document and in different embodiments.

[0023] The embodiment of the present invention is as follows, a method for preparing an aerogel composite material includes the following steps:

[0024] (1) Mix the resin powder and aerogel evenly;

[0025] (2) Lay a layer of mixture on the mold base plate;

[0026] (3) Use a laser to quickly heat the obtained mixture in a step-and-scan mode until the resin powder in it melts but the aerogel does not melt;

[0027] (4) Repeat step (2) and step (3) alternately on the previous deposition layer;

[0028] (5) Curing to obtain an aerogel compo...

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Abstract

The invention provides a preparation method for an aerogel composite material. The aerogel composite material is composed of an aerogel and a resin phase which is used for bonding the aerogel. The preparation method comprises the following steps: (1) mixing: uniformly mixing the aerogel with resin powder; (2) spreading: spreading a layer of a mixture obtained in the step (1) on the substrate of amold; (3) melting: rapidly heating the resin powder in the mixture obtained in the step (2) by using a laser in a step scan manner until the resin powder is molten; (4) alternate spreading and melting: alternately repeating the step (2) and the step (3) on a former deposition layer; and (5) curing. The aerogel composite material disclosed by the invention has good heat insulation performance, light transmittance, safety performance, sound insulation performance and noise reduction performance, and is applicable to the field of doors and windows, curtain wall glass, lighting roofs and the likeof green buildings, ultralow-energy-consumption buildings and near-zero-energy-consumption buildings and to the fields of artistic glass and the like.

Description

Technical field [0001] The invention relates to the technical field of preparation of composite materials, in particular to a preparation method of aerogel composite materials. Background technique [0002] Aerogel is a kind of light nanometer solid material in which nanometer-scale ultrafine particles aggregate each other to form a nanoporous network structure, and the network pores are filled with gaseous dispersion medium. The porosity is as high as 99.8%, the typical size of pores is 1-40nm, and the specific surface area is 400-1200m. 2 / g, and the density can be as low as 3kg / m 3 , The room temperature thermal conductivity can be as low as 0.010W / (m·k) or less, showing excellent light weight, light transmission, heat insulation, heat preservation, sound insulation, fire resistance, impact resistance, and excellent chemical stability and non-combustibility. It is precisely because of these characteristics that silica aerogel materials have broad application potential in the f...

Claims

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Application Information

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IPC IPC(8): C04B38/08C04B26/02C04B20/00C04B20/02C04B40/02C04B40/00
CPCB29C67/00C04B20/0036C04B20/023C04B26/02C04B38/085C04B40/0017C04B40/0222C04B2201/32
Inventor 卢梦言卢军卢孟磊张丁日卢斌
Owner CHANGSHA XINGNA AEROGEL
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