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A kind of photocatalytic glass fiber wool dry hot pressing composite core material and preparation method thereof

A technology of glass fiber wool and ultra-fine glass fiber is applied in the field of photocatalytic glass fiber wool dry hot pressing composite core material and its preparation field, which can solve the problems of poor heat insulation effect and insufficient thermal conductivity of the heat insulation core material. , to achieve the effect of excellent thermal insulation performance, low thermal conductivity and low thermal conductivity

Active Publication Date: 2022-07-05
CHONGQING UNIV OF ARTS & SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a photocatalytic glass fiber wool dry-process hot-pressed composite core material and its preparation method in order to improve the deficiencies of the prior art, so as to solve the problem of heat conduction of the heat-insulating core material prepared from ultra-fine glass fiber wool in the prior art. The coefficient is not low enough, the heat insulation effect is not good, and it does not have the problem of antibacterial and sterilizing functions at the same time

Method used

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  • A kind of photocatalytic glass fiber wool dry hot pressing composite core material and preparation method thereof
  • A kind of photocatalytic glass fiber wool dry hot pressing composite core material and preparation method thereof

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Embodiment 1

[0024] The selected component is SiO 2 : 63.5wt%, Na 2 O: 12wt%, K 2 O: 3wt%, CaO: 3wt%, Al 2 O 3 : 6wt%, MgO: 6wt%, B 2 O 3 : 5wt%, Fe 2 O 3 +BaO: 1.5wt% of waste flat glass and ore raw materials are used as raw materials, and then the raw materials selected to prepare ultra-fine glass fibers are mixed uniformly and then put into a kiln at 1470 ° C for high temperature melting into transparent and uniform glass liquid, and then melted uniformly The glass liquid flows into a centrifuge with a temperature of 985°C, and the rotation speed of the centrifuge is controlled at 3000rpm, so that the output of ultra-fine glass fiber wool is controlled at 355Kg / h. The dispersion liquid mixed with 1wt% KH560 silane coupling agent and zinc oxide photocatalytic nanoparticles with an average particle diameter of 75nm was uniformly atomized and sprayed on the surface of each ultra-fine glass fiber prepared by centrifugal method, and the injection pressure was controlled at 5Mpa , The...

Embodiment 2

[0026] The selected component is SiO 2 : 65wt%, Na 2 O: 12wt%, K 2 O: 2.5wt%, CaO: 3wt%, Al 2 O 3 : 5.5wt%, MgO: 6wt%, B 2 O 3 : 4.5wt%, Fe 2 O 3 +BaO: 1.5wt% waste flat glass and ore raw materials are used as raw materials, and then the raw materials selected to prepare ultra-fine glass fibers are mixed uniformly and then put into a kiln at 1480 ℃ to be melted into a transparent and uniform glass liquid at high temperature, and then melted uniformly The glass liquid flows into a centrifuge with a temperature of 990°C, and the rotation speed of the centrifuge is controlled at 3200rpm, so that the output of ultra-fine glass fiber wool is controlled at 400Kg / h. The dispersion liquid mixed with 1.5wt% KH560 silane coupling agent and zinc oxide photocatalytic nanoparticles with an average particle diameter of 80nm was uniformly atomized and sprayed on the surface of each ultra-fine glass fiber prepared by centrifugal method, wherein the injection pressure was controlled at ...

Embodiment 3

[0028] The selected component is SiO 2 : 67wt%, Na 2 O: 10wt%, K 2 O: 2wt%, CaO: 3.5wt%, Al 2 O 3 : 5.5wt%, MgO: 6wt%, B 2 O 3 : 5wt%, Fe 2 O 3 +BaO: 1wt% waste flat glass and ore raw materials are used as raw materials, and then the raw materials selected to prepare ultra-fine glass fibers are mixed uniformly and then put into a kiln at 1480 ° C to melt into a transparent and uniform glass liquid at high temperature, and then melt uniform glass The liquid flows into a centrifuge with a temperature of 995°C, and the rotation speed of the centrifuge is controlled at 3500rpm, so that the output of ultra-fine glass fiber wool is controlled at 450Kg / h. The dispersion liquid mixed with 1.5wt% trimethylchlorosilane coupling agent and zinc oxide photocatalytic nanoparticles with an average particle diameter of 60nm was uniformly atomized and sprayed on the surface of each ultrafine glass fiber prepared by the centrifugal method, wherein the The pressure is controlled at 7Mpa,...

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Abstract

The invention relates to a photocatalytic glass fiber wool dry hot-pressed composite core material comprising ultra-fine glass fiber wool, photocatalytic nanoparticles and a coupling agent, and a preparation method of the composite core material: firstly, the photocatalytic nanoparticles A and The dispersion of the coupling agent is uniformly sprayed on the surface of each ultra-fine glass fiber and made into fiber cotton; then the fiber cotton is immersed in the ionized water dispersion of the photocatalytic nanoparticles B and ultrasonically immersed; The processed fiber cotton is hot-pressed to obtain a photocatalytic glass fiber cotton dry hot-pressed composite core material. The invention can ensure that the photocatalytic nanoparticles are in-situ bonded and grown on the surface of each fiber, and then introduce a multi-level nano-pore structure into the three-dimensional fiber network structure, thereby effectively improving the porosity of the composite glass fiber cotton and the load of the photocatalytic nanoparticles. Therefore, the composite core material has the effect of photocatalytic sterilization, and further reduces its thermal conductivity.

Description

technical field [0001] The invention relates to a photocatalytic glass fiber wool dry hot pressing composite core material and a preparation method thereof, and belongs to the technical field of glass fiber wool dry hot pressing core materials. Background technique [0002] The thermal insulation core material prepared from ultra-fine glass fiber wool is a kind of fibrous floc thermal insulation material with excellent performance. It is widely used in thermal insulation of building wall insulation, cold chain logistics, transportation and other fields. Due to the cases of infectious viruses being imported into foreign countries through ordinary logistics outside the cold chain, the development of high-performance glass fiber insulation core materials not only requires very low thermal conductivity, but also needs to have a composite function of antibacterial and sterilization. Logistics containers are very important. SUMMARY OF THE INVENTION [0003] The purpose of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C25/14C03C25/16C03C25/00
CPCC04B30/02C03C13/00C03C3/091C03C1/002C04B14/42C04B22/06C04B2103/0068
Inventor 翟福强李璐罗永以陈西浩
Owner CHONGQING UNIV OF ARTS & SCI