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A kind of high-performance gradient foam glass insulation material and its preparation method

A foam glass and thermal insulation material technology is applied in the field of high-performance gradient foam glass thermal insulation materials and their preparation, and can solve the problems of difficulty in stabilizing and improving the performance of foam glass.

Inactive Publication Date: 2016-08-31
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 powde...

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PUM

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Abstract

The invention relates to a high-performance gradient foam glass insulation material. The raw materials include the following components in terms of weight percentage: 96.00-98.00% of basic glass, 1.50-3.50% of borax, 0.20-0.60% of Glauber's salt and 0.20-0.80% of carbon . The raw materials in the high-performance gradient foam glass insulation material include more than one specific proportion, and the raw materials with different proportions are layered according to the carbon content gradient. The preparation process of the present invention is simple, easy to operate, and closed-cell foam glass with low density, high strength, low thermal conductivity and uniform pore structure can be obtained by adjusting and controlling the chemical composition of the special foam glass mixture. A gradient distribution of density is formed in the direction. The foam glass material with this structure can play a unique role and effect in construction, processing, or under special requirements.

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 Patents(China)
IPC IPC(8): C03C11/00
Inventor 何峰张秋萍谢峻林
Owner WUHAN UNIV OF TECH
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