Vacuum insulated panel core material and preparation method thereof and vacuum insulated panel

A technology of vacuum insulation panels and core materials, which is applied to heat exchange equipment, mechanical equipment, and pipelines through heat insulation, and can solve problems such as complex processes, large thermal bridge effects, and reduced insulation performance, and achieve uniform pore distribution and environmental protection. The effect of less pollution and less thermal bridge effect

A technology of vacuum insulation panels and core materials, which is applied to heat exchange equipment, mechanical equipment, and pipelines through heat insulation, and can solve problems such as complex processes, large thermal bridge effects, and reduced insulation performance, and achieve uniform pore distribution and environmental protection. The effect of less pollution and less thermal bridge effect

CN110285289AInactive Publication Date: 2019-09-27江西晖烁新材料有限公司
10 Cites 5 Cited by

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Vacuum insulated panel core material and preparation method thereof and vacuum insulated panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A vacuum insulation board core material, the density of the core material is 140kg / m 3 , the core material is wrapped with air-permeable and powder-proof non-woven fabric, and the core material includes three raw material components with a mass fraction of 60% fumed silica, 35% reinforcing adhesive fiber and 5% radiation sunscreen.

[0031] The specific surface area of ​​the nano fumed silica is 150m 2 / g.

[0032] The molecular composition of described reinforced adhesive fiber is (C 6 h 10 o 5 ) n, the average fiber diameter is 5 μm, and the average length is 5 mm.

[0033] The radiation sunscreen is carbon black.

[0034] A method for preparing a core material of a vacuum insulation panel as described above, comprising the following steps:

[0035] S1 ingredients: Weigh 60kg of nano fumed silica, 5kg of radiation sunscreen agent and 35kg of reinforced adhesive fiber to prepare, and put them into the hopper of the mixer in turn, and seal the hopper;

[0036] S2...

Embodiment 2

[0046] A vacuum insulation panel core material, the density of the core material is 180kg / m 3 , the core material is wrapped with air-permeable and powder-proof non-woven fabric, and the core core material includes three raw material components with a mass fraction of 95% fumed silica, 3% reinforcing adhesive fiber and 2% radiation sunscreen .

[0047] The specific surface area of ​​the nano fumed silica is 200m 2 / g.

[0048] The molecular composition of described reinforced adhesive fiber is (C 6 h 10 o 5 )n, the average fiber diameter is 10μm, and the average length is 10mm.

[0049] The radiation sunscreen is carbon black.

[0050] A method for preparing a core material of a vacuum insulation panel as described above, comprising the following steps:

[0051] S1 ingredients: Weigh 95kg of nano fumed silica, 2kg of radiation sunscreen agent and 3kg of reinforced adhesive fiber to prepare, and put them into the hopper of the mixer in turn, and seal the hopper;

[0052...

Embodiment 3

[0062] A vacuum insulation panel core material, the density of the core material is 180kg / m 3 , the core material is wrapped with air-permeable and powder-proof non-woven fabric, and the core material includes three raw material components with a mass fraction of 65% fumed silica, 25% reinforcing adhesive fiber and 10% radiation sunscreen.

[0063] The specific surface area of ​​the nano fumed silica is 300m 2 / g.

[0064] The molecular composition of described reinforced adhesive fiber is (C 6 h 10 o 5 ) n, the average fiber diameter is 15 μm, and the average length is 15 mm.

[0065] The radiation sunscreen is carbon black.

[0066] A method for preparing a core material of a vacuum insulation panel as described above, comprising the following steps:

[0067] S1 ingredients: Weigh 65kg of nano fumed silica, 10kg of radiation sunscreen and 25kg of reinforced adhesive fiber to prepare, and put them into the hopper of the mixer in turn, and seal the hopper;

[0068] S2 H...

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
Login to View More

PUM

PropertyMeasurementUnit
densityaaaaaaaaaa
specific surface areaaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention provides a vacuum insulated panel core material, a preparation method thereof and a vacuum insulated panel. The vacuum insulated panel comprises a core material and a gas barrier bag; and the core material is packed in the gas barrier bag in vacuum to prepare the vacuum insulated panel. The core material consists of three raw materials of nanometer gas-phase silicon dioxide with a mass fraction of 60-95%, reinforced viscous fibers with a mass fraction of 3-35% and radiation light screening agents with a mass fraction of 2-10%. The preparation method of the core material prepares the core material through the steps of uniform mixing of the raw materials, molding through pressing, cutting and wrapping of breathable non-woven cloth materials without transmitting powder; and the core material is dried to load in the gas barrier bag for vacuumizing and sealing to prepare the vacuum insulated panel. The core material is low in solid heat conducting coefficient, low in shrinkage rate, low in density and high in strength; and the corresponding vacuum insulated panel is low in heat conducting coefficient, high in strength and long in service life.

Description

technical field [0001] The invention relates to the technical field of thermal insulation materials, in particular to a core material of a vacuum thermal insulation panel, a preparation method thereof, and a vacuum thermal insulation panel. Background technique [0002] With the continuous development of the global industrialization process and the massive consumption of fossil energy, on the one hand, we are facing an energy crisis, and on the other hand, the problem of environmental pollution is becoming more and more serious. Vacuum insulation panel (Vacuum Insulation Panel, referred to as VIP) as a new type of super insulation material, its thermal conductivity is low, only 1 / 5-1 / 10 of the thermal conductivity of traditional insulation materials, excellent comprehensive performance, wide source of raw materials, moderate price, It has been popularized and applied in fields that require high heat insulation, such as refrigerators, cold chain logistics, cold storage, etc.,...

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
Login to View More

Application Information

Patent Timeline
27 Sep 2019
Publication
CN110285289A
IPC
F16L59/065; C04B28/26
CPC
C04B28/26; F16L59/065; C04B14/06; C04B16/0675; C04B2103/56
Inventors
袁江涛; 邸小波