Vacuum insulated panel core material and manufacturing method thereof

A technology for vacuum insulation boards and manufacturing methods, which is applied to fiberboards, heat exchange equipment, and pipelines through heat insulation, and can solve the problems of short heat preservation life, high thermal conductivity, and bulky space in available space, and achieve stable and reliable quality. Controlling, reducing thermal conductivity, low cost of raw materials

Active Publication Date: 2013-07-10
CHANGZHOU SANYOU DIOR INSULATION MATERIALS MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most insulation materials have high thermal conductivity, large volume, and the thickness is generally between 1cm-5cm. After being used for home a...

Method used

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  • Vacuum insulated panel core material and manufacturing method thereof

Examples

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Effect test

example 1

[0030] The vacuum insulation panel core material of this example, the vacuum insulation panel core material is made of glass fiber chopped strands with a diameter of 6-13um and a length of 4-20mm drawn by wire drawing and a flame with a diameter of 1.0-4.0um and a length of 1-5mm The glass fiber cotton produced by the method is mixed; the glass fiber cotton produced by the flame method accounts for 20wt%, the glass fiber chopped strands produced by the wire drawing method account for 80wt%, and the core material thickness in the finished vacuum insulation panel is 15 ±1mm, the thermal conductivity of the vacuum insulation panel is ≤0.0024W / m.k.

[0031] The above-mentioned manufacturing method of the core material of the vacuum insulation panel, the specific steps of the manufacturing method are as follows:

[0032] (1) Take the glass fiber chopped strands produced by the wire drawing method with a diameter of 6-13um and a length of 4-20mm and the glass fiber wool produced by ...

Embodiment 2

[0044] The core material of the vacuum insulation panel in this example is a mixture of glass fiber chopped strands produced by wire drawing with a diameter of 6-13um and a length of 4-20mm and glass fiber wool produced by a flame method with a diameter of 1.0-4um and a length of 1-5mm Made; the glass fiber cotton produced by the flame method accounts for 10wt%, the glass fiber chopped strands produced by the drawing method accounts for 90wt%, and the core material thickness in the finished product of the vacuum insulation panel is 15 ± 1mm. The thermal conductivity of the insulation board is ≤0.0022W / m.k.

[0045] The manufacturing method of the core material of the vacuum insulation panel of this example includes the following steps:

[0046] (1) Take the glass fiber chopped strands produced by the wire drawing method with a diameter of 6-13um and a length of 4-20mm and the glass fiber wool produced by the flame method with a diameter of 1.0-4um and a length of 1-5mm; The p...

Embodiment 3

[0055] The core material of the vacuum insulation panel in this embodiment is made of glass fiber chopped strands produced by wire drawing with a diameter of 6-13um and a length of 4-20mm and glass fiber wool produced by a flame method with a diameter of 1.0-4um and a length of 1-5mm It is made by mixing; the glass fiber wool produced by the flame method accounts for 15wt%, the glass fiber chopped strands produced by the drawing method accounts for 85wt%, and the thermal conductivity of the finished vacuum insulation panel is ≤0.0021W / m.k.

[0056] The method for manufacturing the core material of the vacuum insulation panel in this embodiment includes the following specific steps:

[0057] (1) Take the glass fiber chopped strands produced by the wire drawing method with a diameter of 6-13um and a length of 4-20mm and the glass fiber wool produced by the flame method with a diameter of 1.0-4um and a length of 1-5mm; The proportion of glass fiber cotton is 15wt%, and the propor...

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Abstract

The invention relates to a vacuum insulated panel core material and a manufacturing method thereof. the core material is small in heat conductivity coefficient and low in cost and comprises 70wt% to 100wt% of short chopped glass fiber strands with diameters in a range of 6 microns to 13 microns and lengths in a range of 4 millimeters to 20 millimeters and 0wt% to 30wt% of glass fiber cotton with diameters in a range of 1.0 microns to 4 microns and lengths in a range of 1 millimeters to 5 millimeters, wherein the short chopped glass fiber strands are produced through a strand drawing method, and the glass fiber cotton is produced through a flame method flame method. According to the manufacturing method for core panels, multi-layer liquid adding and multi-layer vacuum dewatering are used, the heat conductivity coefficient of the vacuum insulated panel core material is below 0.03W/m.k, and the heat conductivity coefficient of the vacuum insulated panel is below 0.0025 W/m.k, the heat conductivity coefficient is lower than that of a glass fiber cotton core material 100% produced through the flame method, the insulating effect is good, the manufacture cost of the vacuum insulated panel core material is saved greatly simultaneously, and the quality is stable and controllable.

Description

technical field [0001] The invention relates to a core material of a vacuum insulation panel and a manufacturing method thereof, in particular to a core material of a vacuum insulation panel made of ultrafine glass fiber cotton and chopped glass fiber as raw materials, which is suitable for heat preservation of home appliances and cold chain logistics , Building insulation and other fields. Background technique [0002] At present, the core material of vacuum insulation panels generally chooses porous media, such as powdered silica, aerogel, glass fiber or microporous polyurethane, and each material has its advantages and disadvantages. Secondly, when each core board is used, desiccant or getter must be added to remove the unremoved gas and moisture in the barrier film and the core material to ensure the vacuum degree, thereby improving the service life of the vacuum insulation board. Vacuum insulation panels have been used in various fields. It meets customer requirements ...

Claims

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Application Information

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IPC IPC(8): F16L59/02F16L59/065D21J1/00D21H13/40
Inventor 糜玥崎
Owner CHANGZHOU SANYOU DIOR INSULATION MATERIALS MFG
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