Mineral polymer foaming material as well as preparation method and application of mineral polymer foaming material

A technology of mineral polymers and foaming materials, which is applied in the field of architectural foaming products, can solve the problems that it is difficult to obtain low-density products, the uniformity of products is difficult to control, and the foaming time cannot be too long, so that the product density is easy to control, The effect of low density and large porosity

Inactive Publication Date: 2012-08-01
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above three patents use heating, physical methods and chemical methods for foaming respectively. The heating method must be foamed at a higher temperature, the equipment is complicated, and the size of the pores is not easy to control; it is difficult to obtain low-density products by chemical foaming; Although the ph

Method used

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  • Mineral polymer foaming material as well as preparation method and application of mineral polymer foaming material
  • Mineral polymer foaming material as well as preparation method and application of mineral polymer foaming material
  • Mineral polymer foaming material as well as preparation method and application of mineral polymer foaming material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (1) 25g sodium hydroxide is added in 72ml modulus and is the commercial water glass of 3.1~3.4, then adds 50ml pure water, stirs, and the sodium water glass that obtains modulus is 1.1;

[0041] (2) Add 0.1 parts by weight of saponin to 90 parts by weight of water, mix well and put it into a foaming machine to stir and foam for 6 minutes to obtain a uniform foam;

[0042] (3) Mix the foam prepared in step (2) with 100 parts by weight of 500 mesh metakaolin, then add 50 parts by weight of water glass prepared in step (1), and stir for 6 minutes to obtain mixture B;

[0043] (4) The mixture B was poured into the mold, and cured at 80° C. for 12 hours to obtain a mineral polymer foam material.

[0044] Its density is 1100kg / m 3 , The compressive strength is 10MPa, and the flexural strength is 8MPa. The detection method of the above performance indicators refers to the performance test method of autoclaved aerated concrete (GB-T11969-2008).

Embodiment 2

[0046] (1) Add 1g of sodium hydroxide into 20ml of commercial water glass with a modulus of 2.2 to 2.5, stir evenly to obtain sodium water glass with a modulus of 2;

[0047] (2) Mix 0.3 parts by weight of rosin soap, 0.5 parts by weight of gelatin and 0.3 parts by weight of sodium hydroxide evenly, add them to 20 parts by weight of water and mix evenly, then put them into a foaming machine and stir and foam for 8 minutes to obtain a uniform foam ;

[0048] (3) Mix 100 parts by weight of 200 mesh metakaolin, 10 parts by weight of 200 mesh quicklime and 10 parts by weight of 800 mesh zeolite, and stir evenly to obtain mixture A;

[0049] (4) Mix the foam prepared in step (2) with the mixture A prepared in step (3), then add 80 parts by weight of sodium water glass prepared in step (1), and stir for 15 minutes to obtain mixture B;

[0050] (5) Pour mixture B into a mold, and harden under natural conditions for 24 hours to obtain a mineral polymer foam material.

[0051] Its de...

Embodiment 3

[0053](1) 5g sodium hydroxide is added into 72ml modulus and be in the commodity water glass of 2.6~2.9, then add 20ml pure water, stir, obtain the sodium water glass that modulus is 1.6;

[0054] (2) Mix 1 part by weight of methylcellulose, 5 parts by weight of bone glue and 0.1 part by weight of yellow dextrin, add them to 30 parts by weight of water and mix evenly, then put them into a foaming machine and stir and foam for 16 minutes to obtain a uniform the foam;

[0055] (3) 50 parts by weight of 15000 mesh metakaolin, 5 parts by weight of 500 mesh fly ash and 10 parts by weight of 200 mesh slag were mixed, and stirred evenly to obtain mixture A;

[0056] (4) Mix the foam prepared in step (2) with the mixture A prepared in step (3), then add 100 parts by weight of sodium water glass prepared in step (1), and stir for 6 minutes to obtain mixture B;

[0057] (5) The mixture B was poured into the mold, and hardened at 40° C. for 24 hours to obtain a geopolymer foam material....

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Abstract

The invention discloses a mineral polymer foaming material as well as a preparation method and an application of the mineral polymer foaming material. The material comprises the following ingredients in parts by weight: 50 to 100 parts of metakaolin, 0 to 50 parts of admixture, 50 to 100 parts of water glass, 0.1 to 15 parts of foaming agents, 0 to 10 parts of foam stabilizers and 10 to 90 parts of water. A physical foaming method is adopted, the foaming agents and the water are mixed to be made into foams, then, the foams are uniformly mixed with power materials adopting metakaolin powder as main structure materials, next, the water glass is added, the uniform stirring is carried out, the foaming material is manufactured through forming, and the air hole size and the product density of the foaming material are easy to control. The prepared mineral polymer foaming material has the advantages that the density is small, the air hole quantity is great, the tensile strength is higher than that of the common foaming material products, the water resistance is good, the fire resistance is good, and the resistance on high temperature of 1200 DEG C can be realized. The mineral polymer foaming material can be applied to the process fields of heat preservation and thermal insulation of buildings, heat preservation, filtering and adsorption of thermal equipment and the like.

Description

technical field [0001] The invention belongs to the field of building foam products, and in particular relates to a mineral polymer foam material and its preparation method and application. Background technique [0002] The main components of building foam products include Portland cement, magnesium oxychloride cement, and gypsum. Portland cement foam products are more brittle, and products with lower density are very easy to break during handling. Magnesium oxychloride cement foam products have poor fire resistance, and magnesium oxychloride products are basically completely decomposed into magnesium oxide powder without strength at 500 °C. Gypsum foam products begin to decompose at 1000°C. The Achilles heel of gypsum products is their poor water resistance, so they are not suitable for outdoor use. [0003] Mineral polymer material is a concept proposed by French scientist Joseph Davidovits in the 1970s, which refers to the inorganic [SiO 4 ] and [AlO 4 ] Inorganic poly...

Claims

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Application Information

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IPC IPC(8): C04B28/26C04B38/02
Inventor 吕明吴建青陈燕珊彭诚饶平根
Owner SOUTH CHINA UNIV OF TECH
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