Aerogel material reinforced by fiber reinforcement and preparation method of aerogel material

A fiber reinforcement and fiber reinforcement technology are applied in the field of preparation of fiber reinforced silica aerogel fiber reinforced aerogel materials, which can solve the problem that the fiber reinforced aerogel materials cannot be efficiently prepared, and it is difficult to meet the The demand for preparation and use, the high production cost of aerogel as a material, to achieve the effect of large-scale and engineering preparation, simple surface treatment process and low cost
CN106866093AInactive Publication Date: 2017-06-20AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH
Publication Date
2017-06-20
Estimated Expiration
Not applicable Β· inactive patent
Patent Text Reader

Abstract

The invention relates to an airgel material reinforced by fiber reinforcement and its preparation method. The width of the material is 0.5-1.5 meters, and the length is 5-30 meters. Its composition includes silicon dioxide airgel and reinforced continuous fiber, and its weight ratio is 1:0.5-2.5. The present invention also relates to (1), limiting and winding the continuous reinforcing fiber into a winding unit while keeping a certain gap between the continuous fibers; (2), disposing silicon alkoxide, alcohol solvent and basic catalyst according to a certain ratio (3) Immerse the silica sol into the continuous reinforcing fiber winding unit through the impregnation process; (4) After the silica gel is aged for a certain period of time, the surface is treated with a hydrophobizing agent; (5) The silica gel containing silica gel The continuous fiber winding unit of glue is supercritically dried. The material prepared by the invention has large specific surface area and low thermal conductivity, and can be applied in many fields such as fire retardation, sound insulation, gas adsorption and the like.
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Description

technical field

[0001] The invention relates to a preparation method of a fiber-reinforced airgel material, in particular to a preparation method of a fiber-reinforced silica airgel fiber-reinforced airgel material. Background technique

[0002] Airgel is a low-density nanoporous amorphous material with a continuous random network structure. Due to the distribution of nanoscale particles and voids in airgel, it has very low thermal conductivity, so it can be used as a light-weight, high-efficiency thermal insulation material (Angew Chem Int Ed. 1998, 37: 22-45). At the same time, due to the special structure of airgel, it also has many functions such as fire prevention, sound insulation, light transmission, adsorption, filtration, etc. It is precisely because of these characteristics that airgel materials are used in thermal, acoustic, optical, microelectronics, particle detection It has very broad application potential (Thin SolidFilms.1997, 297(1-2): 212-217). However, m...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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