Preparation method of fiber-aerogel composite material in composite core material for vacuum insulation board
A technology of vacuum insulation panels and composite materials, applied in heat exchange equipment, chemical characteristics of fibers, single-component synthetic polymer rayon, etc., can solve the problems of high brittle resistance, low thermal conductivity, etc. The effect of reducing thermal conductivity and density and improving thermal insulation performance
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0030] A kind of composite core body material for vacuum insulation board, is made of nano Bi 2 Te 3 Modified melamine formal fiber, nanoporous zeolite modified polycarbonate foam insulation material and fiber-aerogel composite material are filled into a film bag with an opening on one side according to the weight ratio of 5:3:2. The film bag is sealed and placed in the mold of the molding machine, so that the filling material is evenly distributed in the film bag, and the filling material is pressurized and molded under a molding pressure of 50MPa, and finally the mold pressure is unloaded and demolded to obtain the formed core material.
[0031] Among them, the nano-Bi 2 Te 3 Modified melamine formal fiber is prepared by the following method:
[0032](1) Dissolve bismuth chloride, tellurium powder, potassium hydroxide, and sodium borohydride in N-N-dimethylformamide, and conduct a hydrothermal reaction at 110°C for 28 hours with the resulting solution, and cool naturally ...
Embodiment 2
[0043] A kind of composite core body material for vacuum insulation board, is made of nano Bi 2 Te 3 Modified melamine formal fiber, nanoporous zeolite modified polycarbonate foam insulation material and fiber-aerogel composite material are filled into a film bag with an opening on one side according to the weight ratio of 11:5:4. The film bag is sealed and placed in the mold of the molding machine, so that the filling material is evenly distributed in the film bag, and the filling material is pressurized and molded under a molding pressure of 52MPa, and finally the mold pressure is unloaded and demolded to obtain the formed core material.
[0044] Among them, the nano-Bi 2 Te 3 Modified melamine formal fiber is prepared by the following method:
[0045] (1) Dissolve bismuth chloride, tellurium powder, potassium hydroxide, and sodium borohydride in N-N-dimethylformamide, and conduct a hydrothermal reaction at 130°C for 26 hours with the resulting solution, and cool naturall...
Embodiment 3
[0056] A kind of composite core body material for vacuum insulation panel, is made of nano Bi 2 Te 3Modified melamine formal fiber, nanoporous zeolite modified polycarbonate foam insulation material and fiber-aerogel composite material are filled into a film bag with an opening on one side according to the weight ratio of 11:6:3. The film bag is sealed and placed in the mold of the forming machine, so that the filling material is evenly distributed in the film bag, and the filling material is pressurized and molded under the molding pressure of 48MPa, and finally the mold pressure is unloaded and demolded to obtain the formed core material.
[0057] Among them, the nano-Bi 2 Te 3 Modified melamine formal fiber is prepared by the following method:
[0058] (1) Dissolve bismuth chloride, tellurium powder, potassium hydroxide, and sodium borohydride in N-N-dimethylformamide, and conduct a hydrothermal reaction at 140° C. for 24 hours with the resulting solution, and cool natur...
PUM
| Property | Measurement | Unit |
|---|---|---|
| density | aaaaa | aaaaa |
| particle diameter | aaaaa | aaaaa |
| particle diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More