A water-resistant thermal insulation glass magnesium board and its preparation method

A technology of glass magnesium board and magnesium chloride hexahydrate, applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of returning halogen and frost, restricting development, reducing strength, etc. Ease of operation and improved water resistance

Active Publication Date: 2017-01-18
南京格瑞恩斯新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, magnesium oxychloride cement gelling materials also have many obvious disadvantages: poor water resistance, easy cracking, warping deformation, return to halogen and frost, etc., seriously restricting its development. Poor water resistance is manifested in: general magnesium oxychloride cement products After soaking in water for 28 days, its strength will be reduced by 70% to 80%.

Method used

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  • A water-resistant thermal insulation glass magnesium board and its preparation method
  • A water-resistant thermal insulation glass magnesium board and its preparation method
  • A water-resistant thermal insulation glass magnesium board and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] 15 parts by weight of light-burned magnesium oxide, 20 parts by weight of magnesium chloride hexahydrate, 8 parts by weight of wood chips, 20 parts by weight of water, 6 parts by weight of slag micropowder, 1.5 parts by weight of hydrophobic airgel particles, surface modifier silane coupling agent KH- 550 0.5 parts by weight, phosphoric acid 0.4 parts by weight.

[0056] The preparation method of the above-mentioned water-resistant thermal insulation glass magnesium board is carried out according to the following steps:

[0057] A, 15 parts by weight of light-burned magnesia, 6 parts by weight of slag micropowder (specific surface area ≥ 400m 2 / kg of blast furnace slag), 8 parts by weight of wood chips and 1.5 parts by weight of hydrophobic airgel particles are added to the mixer, stirred for 5min, and mixed uniformly;

[0058] B. Add 20 parts by weight of water to 20 parts by weight of magnesium chloride hexahydrate, stir evenly, and treat that magnesium chloride hex...

Embodiment 2

[0065] 18 parts by weight of light-burned magnesium oxide, 8 parts by weight of slag fine powder, 8 parts by weight of wood chips, 2 parts by weight of hydrophobic airgel particles, 23 parts by weight of magnesium chloride hexahydrate, 23 parts by weight of water, surface modifier silane coupling agent KH- 570 0.6 parts by weight, aluminum phosphate 0.5 parts by weight.

[0066] The preparation method of the above-mentioned water-resistant thermal insulation glass magnesium board is carried out according to the following steps:

[0067] A, 18 parts by weight of light-burned magnesia, 8 parts by weight of slag micropowder (specific surface area ≥ 400m 2 / kg of blast furnace slag), 8 parts by weight of wood chips and 2 parts by weight of hydrophobic airgel particles are added to the mixer, stirred for 5min, and mixed uniformly;

[0068] B, add 23 parts by weight of water in 23 parts by weight of magnesium chloride hexahydrate, stir evenly, treat that magnesium chloride hexahydr...

Embodiment 3

[0075] 15 parts by weight of light-burned magnesium oxide, 5 parts by weight of slag fine powder, 7 parts by weight of wood chips, 2 parts by weight of hydrophobic airgel particles, 20 parts by weight of magnesium chloride hexahydrate, 20 parts by weight of water, surface modifier titanate coupling agent 0.6 parts by weight of NDZ-101, and 0.5 parts by weight of sodium hexapolyphosphate.

[0076] The preparation method of the above-mentioned water-resistant thermal insulation glass magnesium board is carried out according to the following steps:

[0077] A, 15 parts by weight of light-burned magnesia, 5 parts by weight of slag micropowder (specific surface area ≥ 400m 2 / kg of blast furnace slag), 7 parts by weight of wood chips and 2 parts by weight of hydrophobic airgel particles are added to the mixer, stirred for 5min, and mixed uniformly;

[0078] B. Add 20 parts by weight of water to 20 parts by weight of magnesium chloride hexahydrate, stir evenly, and treat that magne...

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Abstract

The invention discloses a waterproof thermal-insulation glass magnesium board and a preparation method thereof and belongs to the technical field of preparation of new building materials from non-metallic minerals. The glass magnesium board is mainly prepared from the following raw materials in parts by weight: 10-18 parts of light calcined magnesia, 15-25 parts of magnesium chloride hexahydrate, 20-25 parts of water, 5-10 parts of superfine slag powder, 0.5-2 parts of hydrophobic aerogel, 0.3-0.6 part of a surface modifier and 0.25-0.5 part of a waterproof modifier. The waterproof thermal insulation glass magnesium board has good water resistance, hardly produces halogenide, does not warp or deform and is light in weight, thermal insulation performance is greatly improved, and quality defects of an existing glass magnesium board are overcome, and application range of the glass magnesium board is expanded.

Description

technical field [0001] The invention belongs to the technical field of manufacturing new building materials from non-metallic minerals, and in particular relates to a water-resistant and heat-preserving glass magnesium board and a preparation method thereof. Background technique [0002] Magnesium oxychloride cement gelling material is made of lightly burned MgO, MgCl and H 2 O is blended in a certain proportion and is also called Sorel cement. Magnesium oxychloride cement is a kind of air-hardening cementitious material, which has a series of excellent properties mainly in: light weight, high strength, low alkalinity, corrosion resistance, impact resistance, easy molding, simple production process, low cost, energy Low power consumption and environmental friendliness make it widely used in construction engineering, municipal engineering, agricultural production, environmental protection industry, machinery packaging, transportation and light industry. However, magnesium o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/32C04B18/12
CPCY02W30/91
Inventor 滕凯明
Owner 南京格瑞恩斯新材料科技有限公司
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