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Continuous production process and application of aerogel felt composite material

A technology of composite materials and airgel felt, which is applied in the continuous production process and application field of airgel felt composite materials, can solve the problems of storage and transportation, construction and installation not being convenient enough, unfavorable for large-scale production, and poor mechanical properties of materials, etc. Achieve the effects of enhancing adhesion and mechanical properties, improving comprehensive mechanical properties, and shortening the production process

Inactive Publication Date: 2020-03-06
鑫创新材料科技(徐州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the usual anti-powdering solution is to use glass fiber cloth, aluminum foil cloth, etc. to stick on the surface of the airgel fiber mat. This method has high labor costs and is not conducive to large-scale production, and the mechanical properties of the material after the front and back sides are pasted are poor. , the flexibility is reduced, it is not easy to curl and bend, and the storage, transportation, construction and installation are not convenient enough

Method used

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  • Continuous production process and application of aerogel felt composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Fabricate airgel composites as follows:

[0025] (1) The following raw materials are weighed by weight: 500 parts of sol, 300 parts of hot melt adhesive, 200 parts of composite material and 1000 parts of fiber substrate, and these raw materials are continuously mixed for sol compounding;

[0026] The sol is composed of silicon dioxide, aluminum oxide, zirconium oxide, titanium oxide, iron oxide, zinc oxide, magnesium oxide and strontium oxide.

[0027] The composite material is made of polyethylene, polypropylene, polyester, polyurethane, polyester, polypropylene fiber, nylon, glass fiber cloth, aluminum foil cloth, polytetrafluoroethylene, polystyrene material, and EVA. The thickness of the composite material is 300mm , the number of layers is 20 layers.

[0028] The fiber substrate is made of glass fiber, ceramic fiber, pre-oxidized silk fiber, aluminum silicate fiber, mullite fiber, basalt fiber, polyester fiber or carbon fiber.

[0029] (2) The sol complex is cont...

Embodiment 2

[0035] Fabricate airgel composites as follows:

[0036] (1) The following raw materials are weighed according to the weight ratio: 1 part of sol, 1 part of composite material and 100 parts of fiber substrate, and these raw materials are continuously mixed to carry out sol compounding;

[0037] The sol is composed of iron oxide, zinc oxide, magnesium oxide and strontium oxide.

[0038] The composite material is a mixture of nylon, glass fiber cloth, aluminum foil cloth, polytetrafluoroethylene, polystyrene material, and EVA. The thickness of the composite material is 0.1 mm, and the number of layers is 2 layers.

[0039] The fiber substrate is made of glass fiber, mullite fiber, basalt fiber, polyester fiber and carbon fiber.

[0040] (2) The sol complex is continuously mixed to form and solidify as a gel under the action of a quantitative lye as a catalyst;

[0041] (3) The gel is then subjected to supercritical drying to form an airgel felt;

[0042] (4) Continuously feed ...

Embodiment 3

[0046] Fabricate airgel composites as follows:

[0047] (1) Take the following raw materials according to the weight ratio: 250 parts of sol, 250 parts of hot melt adhesive, 100 parts of composite material and 250 parts of fiber substrate, and continuously mix these raw materials to carry out sol compounding;

[0048] The sol is composed of silicon dioxide, titanium oxide, iron oxide, zinc oxide, magnesium oxide and strontium oxide.

[0049] The composite material is a mixture of polyethylene, polypropylene and polyester, the thickness of the composite material is 250 mm, and the number of layers is 5 layers.

[0050] The fiber substrate is made of glass fiber, ceramic fiber, mullite fiber, polyester fiber and carbon fiber.

[0051] (2) The sol complex is continuously mixed to form and solidify as a gel under the action of a quantitative lye as a catalyst;

[0052] (3) The gel is then dried under negative pressure to form an airgel felt;

[0053] (4) Continuously feed the d...

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Abstract

The invention discloses a production process and application of an aerogel felt composite material. The preparation method of the aerogel felt composite material comprises the steps: (1) taking raw materials, namely a sol raw material and a fiber base material, continuously mixing, and carrying out sol compounding; (2) carrying out continuous mixing forming curing of the sol complex under the action of quantitative alkali liquor serving as a catalyst, to obtain gel; (3) drying the gel to form an aerogel felt; (4) continuously feeding the dried aerogel felt, a hot melt adhesive, a composite material and an auxiliary material into a hot melt coating machine, and compounding; and (5) carrying out continuous shaping processing and packaging on the aerogel composite material subjected to hot coating to finish the preparation. The adhesive force of aerogel powder on the composite material is enhanced, and the product quality of the aerogel felt is improved; through compounding of multiple materials, the comprehensive mechanical property is further improved on the basis of original excellent heat insulation and sound insulation, and the composite material can be widely applied to the fields of building decoration materials, heat supply pipe network materials, new energy automobiles and household appliances.

Description

technical field [0001] The invention relates to the field of airgel material manufacturing, in particular to a continuous production process and application of an airgel felt composite material. Background technique [0002] Airgel is a kind of highly dispersed solid material that is composed of nano-sized colloidal particles or polymer molecules aggregated to form a nano-porous framework, and filled with a gaseous dispersion medium in the pores, with a porosity of up to 99%. The size of the pores and skeletons is generally between 1-100nm, and has unique properties in terms of force, heat, light, electricity, and sound. It can be widely used in thermal insulation projects, particle detectors, high-speed particle collection, catalysts and catalysts carrier etc. [0003] Fiber composite airgel greatly improves the mechanical properties (strength, formability, flexibility) of airgel, but due to the splitting effect of fibers, airgel is mostly embedded in the gap of fiber body...

Claims

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Application Information

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IPC IPC(8): C04B32/00B29D7/01
CPCB29D7/01C04B32/005C04B2201/20C04B2201/32C04B14/064C04B14/303C04B14/306C04B14/308C04B14/305C04B14/30C04B14/304C04B16/0683C04B16/0633C04B16/0691C04B14/42C04B14/48C04B24/24C04B24/2682C04B24/28C04B24/26C04B14/46C04B14/4656C04B14/4643C04B14/386C04B24/2611C04B24/283
Inventor 佟峰卢江张建立刘兴华
Owner 鑫创新材料科技(徐州)有限公司
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