Unlock instant, AI-driven research and patent intelligence for your innovation.

Self-heat-insulation brick wall material and preparation method thereof

A brick wall and self-insulation technology, which is applied in the production of ceramic materials, clay products, and other household appliances, etc., can solve the problems of poor insulation effect, self-insulation technology cannot be widely promoted, and large thermal conductivity, etc., to achieve durability Long, low density, high compressive strength

Pending Publication Date: 2019-01-18
NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These inorganic self-insulating bricks have different properties, but their thermal conductivity is generally too large, and the better ones are around 0.1W / (m·K), and the thermal insulation effect is poor.
As a result, self-insulation technology has not been widely promoted

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Self-heat-insulation brick wall material and preparation method thereof
  • Self-heat-insulation brick wall material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A method for preparing self-insulating bricks by microwave sintering proposed by the present invention comprises: weighing 300g of an aqueous solution of sodium silicate with a modulus of 3.5, adding 27g of sodium hydroxide to it, and stirring with a mechanical stirrer for 30 minutes until uniformly mixed, at a speed of 200rpm; Weigh 30g of fly ash and 30g of vitrified microspheres respectively, and add them to the homogeneously mixed liquid in turn, stir for 2h with a mechanical stirrer until the slurry is stable, and the rotating speed is 500rpm; the stable slurry Pour it into a stainless steel mold, then put the mold into a microwave sintering furnace with a sintering temperature of 400°C, keep it warm for 5 minutes, and then cool it to room temperature with the furnace to obtain a foaming material; take out the foaming material, and cut it according to the required plate size. Get self-insulating bricks.

[0021] The density obtained from the insulation brick is 205...

Embodiment 2

[0023] A method for preparing self-insulating bricks by microwave sintering proposed by the present invention, comprising: weighing 300g of an aqueous solution of sodium silicate with a modulus of 3.2, adding 20g of sodium hydroxide to it, and stirring with a mechanical stirrer for 30min until uniformly mixed, at a speed of 200rpm; Weigh 60g of fly ash and 20g of vitrified microspheres respectively, and add them to the uniformly mixed liquid in turn, stir for 2h with a mechanical stirrer until the slurry is stable, and the rotating speed is 500rpm; the stable slurry Pour it into a stainless steel mold, then put the mold into a microwave sintering furnace at a sintering temperature of 450°C, keep it warm for 5 minutes, and then cool to room temperature with the furnace to obtain a foaming material; take out the foaming material, and cut it according to the required plate size. Get self-insulating bricks.

[0024] The density obtained from the insulation brick is 245kg / m 3 , th...

Embodiment 3

[0026] A method for preparing self-insulating bricks by microwave sintering proposed by the present invention comprises: weighing 300g of an aqueous solution of sodium silicate with a modulus of 3.5, adding 30g of sodium hydroxide to it, and stirring with a mechanical stirrer for 30 minutes until uniformly mixed, and the rotation speed 200rpm; Weigh 25g of fly ash and 25g of vitrified microspheres respectively, and add them to the homogeneously mixed solution in turn, stir for 2h with a mechanical stirrer until the slurry is stable, and the rotating speed is 500rpm; the stable slurry Pour it into a stainless steel mold, then put the mold into a microwave sintering furnace at a sintering temperature of 450°C, keep it warm for 4 minutes, and then cool it to room temperature with the furnace to obtain a foaming material; take out the foaming material, and cut it according to the required plate size. Get self-insulating bricks.

[0027] The density obtained from the insulation bri...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
densityaaaaaaaaaa
compressive strengthaaaaaaaaaa
densityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method of microwave sintering of self-heat-insulation bricks. The self-heat-insulation bricks are prepared from the following raw materials in parts by mass: 1-3 parts of flyash, 1-2 parts of glazed hollow beads, 1-3 parts of sodium hydroxide and 14-17 parts of a sodium silicate aqueous solution. Firstly, sodium hydroxide and silicic acid are mixed evenly to obtain the sodium silicate solution with the modulus being 1.5-2.0, and then the flyash and the glazed hollow beads are added, mixed and stirred into slurry; and after being stable, the slurry is injected into a stainless steel mold, microwave sintering is carried out, cooling is carried out, then the material is demolded and cut into the bricks. According to the method, the technology is simple, the raw materials are widely available, the preparation process is environmentally friendly, the sintering temperature is low, the sintering speed is high, and the method is suitable for large-scale industrial production. The products are high in strength, good in durability, low in heat conductivity coefficient and density, and suitable for the field of building heat-insulation.

Description

technical field [0001] The invention is applied to the technical field of thermal insulation materials for civil buildings, and in particular relates to a microwave sintering preparation method of self-insulation bricks. Background technique [0002] Building energy-saving projects have always been an important part of my country's energy-saving and emission-reduction work. With the continuous acceleration of urban construction, the energy-saving requirements for various civil and commercial buildings are getting higher and higher, and various ways to reduce building energy consumption are also emerging. At present, the commonly used building energy saving method in my country is the external wall insulation system, and the commonly used thermal insulation materials are organic external wall insulation materials, accounting for about 90%. However, the fire safety accident of external wall insulation materials has sounded the alarm for us. Whether it is the apartment fire in...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/13C04B33/132C04B33/135
CPCC04B33/13C04B33/131C04B33/1328C04B33/1352Y02P40/60
Inventor 李晔赵恒泽齐艺裴王福生董宪伟
Owner NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY