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High-performance gradient foam glass thermal insulation material and manufacturing method thereof

A technology of foam glass and thermal insulation materials, applied in the field of high-performance gradient foam glass thermal insulation materials and its preparation, can solve the problems such as difficulty in stabilizing and improving the performance of foam glass

Inactive Publication Date: 2014-09-10
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But after all, they will be limited by the basic components of waste glass products, and the performance of foam glass is difficult to stabilize and improve.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A high-performance gradient foam glass insulation material, its raw materials include basic glass, borax, Glauber's salt and carbon, the ratio of raw materials is 3 kinds, and the raw materials with different ratios are laid in layers according to the carbon content gradient, calculated by weight percentage, The raw materials of the lower layer include: basic glass 96.00%, borax 3.50%, Glauber’s salt 0.30% and carbon 0.20%; the middle layer’s raw materials include: basic glass 96.00%, borax 3.30%, Glauber’s salt 0.30% and carbon 0.40%; the upper layer’s raw materials include: basic Glass 96.00%, Borax 2.90%, Glauber's Salt 0.30% and Carbon 0.80%.

[0028] Wherein, the basic glass in the high-performance gradient foam glass insulation material is calculated by weight percentage, and the specific composition is all as shown in Table 1:

[0029] Table 1

[0030] components

weight percent / wt%

raw materials used

SiO 2

68.00

Quartz sand

...

Embodiment 2

[0040] A high-performance gradient foam glass insulation material, its raw materials include basic glass, borax, Glauber's salt and carbon, the ratio of raw materials is 3 kinds, and the raw materials with different ratios are laid in layers according to the carbon content gradient, calculated by weight percentage, The raw materials of the lower layer include: 97.00% of basic glass, 2.20% of borax, 0.60% of Glauber’s salt and 0.20% of carbon; the raw materials of the middle layer include: 97.00% of basic glass, 2.00% of borax, 0.60% of Glauber’s salt and 0.40% of carbon; the raw materials of the upper layer include: basic Glass 97.00%, Borax 1.60%, Glauber's Salt 0.60% and Carbon 0.80%.

[0041] Wherein, the basic glass in the high-performance gradient foam glass insulation material is calculated by weight percentage, and the specific composition is all as shown in Table 2:

[0042] Table 2

[0043] components

weight percent / wt%

raw materials used

SiO ...

Embodiment 3

[0053] A high-performance gradient foam glass insulation material, its raw materials include basic glass, borax, Glauber's salt and carbon, the proportion of raw materials is 2 kinds, the raw materials of different proportions are laid in layers according to the carbon content gradient, calculated by weight percentage, The raw materials of the lower layer include: 98.00% of basic glass, 1.40% of borax, 0.40% of Glauber's salt and 0.20% of carbon; the raw materials of the upper layer include: 98.00% of basic glass, 1.00% of borax, 0.40% of Glauber's salt and 0.60% of carbon.

[0054] Wherein, the basic glass in the high-performance gradient foam glass insulation material is calculated by weight percentage, and the specific composition is all as shown in Table 3:

[0055] table 3

[0056] components

weight percent / wt%

raw materials used

SiO 2

71.00

Quartz sand

al 2 o 3

3.00

Albite

Fe 2 o 3

2.00

Iron oxide po...

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PUM

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Abstract

The invention relates to a high-performance gradient foam glass thermal insulation material. The high-performance gradient foam glass thermal insulation material includes, by weight, 96.00%-98.00% of basic glass, 1.50%-3.50% of borax, 0.20%-0.60% of mirabilite and 0.20%-0.80% of carbon. The raw materials of the high-performance gradient foam glass thermal insulation material are based on more than one specific ratio, and the raw materials of different ratios are laid in a gradient and layered mode according to the carbon content. The manufacturing process is simple, operation is easy, closed-pore foam glass which is small in density, high in strength, low in heat conductivity coefficient and uniform in pore structure can be obtained by controlling chemical constitutions of special foam glass mixtures, and gradient distribution according to density is formed in the thickness direction of the whole foam glass thermal insulation material. The foam glass thermal insulation material of the structure can play a unique role and effect in construction and machining or when special requirements exist.

Description

technical field [0001] The invention relates to a high-performance gradient foam glass insulation material and a preparation method thereof, belonging to the technical field of glass materials. Background technique [0002] Foam glass is a kind of glass containing a large number of uniform bubbles made of cullet, foaming agent, modified additives and foam accelerators, etc., after finely pulverized and uniformly mixed, then melted at high temperature, foamed and annealed Inorganic non-metallic glass materials. The physical and chemical properties of inorganic glass and its uniform independent bubbles determine that this material has low density and small thermal conductivity; it does not burn or deform, and can be used in a wide temperature range from low temperature to high temperature; it has high chemical stability. It can withstand the erosion of medicines, and will not be corroded or rotted; it is airtight, non-hygroscopic and water-absorbing, and there is no need to w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C11/00
Inventor 何峰张秋萍谢峻林
Owner WUHAN UNIV OF TECH
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