Modified rock wool product and preparation method thereof

A cotton product, modified technology, applied in the direction of glass manufacturing equipment, manufacturing tools, etc., can solve the problems of increasing construction difficulty and construction cost, difficulty in meeting building insulation standards, increasing the thickness of insulation layer, etc., to achieve good insulation effect and improve Thermal performance, quality improvement effect

Inactive Publication Date: 2020-08-07
HEBEI SANKAISHENFA SCI & TECH CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Because rock wool products have good flame retardant properties, they are often used as external insulation materials for walls. The thermal conductivity of existing rock wool products is 0.04W / (m K), and the thermal insulation effect is not good, so it is difficult to meet the requirements of building thermal insulation. standard requirement
In order to meet the requirements of building insulation in existing buildings, the thickness of the insulation layer must be increased, which increases the construction difficulty and construction cost

Method used

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  • Modified rock wool product and preparation method thereof
  • Modified rock wool product and preparation method thereof
  • Modified rock wool product and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] In the present invention, the rock wool and the modifying agent are synchronously compounded on the existing rock wool product production line to produce the modified rock wool product. The preparation process is as follows:

[0020] (1) Preparation of rock wool yarn: the raw materials basalt, slag, dolomite and coke are loaded into the heating furnace according to the ratio of 34:10:16:19 by weight, and the raw materials are melted into magma by high-temperature oxygen-enriched combustion. The magma is made into rock wool yarn under the high-speed rotation of the four-roller centrifuge and the high-pressure blown away wind. During the blowing process, the phenolic resin glue is evenly sprayed on the rock wool yarn. 10% of the total weight of the board, the solid content of phenolic resin is 10%. The rock wool yarn with phenolic resin glue enters the cotton collection chamber under the action of high-pressure blown away wind.

[0021] ⑵Preparation of rock wool bundles...

Embodiment 2

[0025] Change the modifier in step (2) to SiO 2 Aerogel, Graphite-SiO 2 Airgel composites. SiO 2 The amount of airgel added is 6% of the mass of the modified rock wool product, graphite-SiO 2 The addition amount of the airgel composite is 6% of the quality of the modified rock wool product, other steps and process conditions are the same as in Example 1, and the modified agent is SiO 2 Airgel 2 # Modified rock wool products and modifiers are graphite-SiO 2 Airgel Composite 3 # Modified rock wool products.

[0026] Such as figure 2 shown, 2 # Modified rock wool product 1 is prepared from rock wool yarn 4, which contains modified substance SiO 2 Airgel5. Such as image 3 shown, 3 # Modified rock wool product 3 is prepared from rock wool yarn 4, which contains modified substance graphite-SiO 2 Aerogel7.

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Abstract

The invention relates to a modified rock wool product and a preparation method thereof; the rock wool product is composed of rock wool filaments and a modifier doped with rock wool; the modifier is sprinkled on a rock wool bundle through a vibrating screen above a secondary conveyor belt. The preparation method comprises the preparation steps: carrying out high-temperature melting, centrifugal throwing and high-pressure blowing on raw materials to prepare rock wool yarns, collecting cotton, and conveying, pleating, pressurizing and curing to obtain the rock wool product, wherein a modifier isuniformly added on the rock wool yarns through a vibrating screen above a conveying belt. Existing production equipment is utilized, the modifier is sprinkled to the rock wool bundle through the vibrating screen, and the produced modified rock wool product is low in heat conductivity coefficient and good in heat preservation effect and has the advantages of being simple in technological process, low in production cost and high in engineering applicability.

Description

technical field [0001] The invention belongs to the technical field of building material production, and relates to a modified rock wool product and a preparation method thereof. Background technique [0002] At present, commonly used insulation materials are mainly divided into inorganic insulation materials and organic insulation materials. Organic insulation materials have low thermal conductivity and good insulation performance, but organic insulation materials are easy to burn, have low flame retardancy, and when organic insulation materials burn, they release a large amount of smoke. High toxicity and relatively low safety in use. Inorganic insulation materials have good flame retardant properties and are non-toxic. [0003] Because rock wool products have good flame retardant properties, they are often used as external insulation materials for walls. The thermal conductivity of existing rock wool products is 0.04W / (m K), and the thermal insulation effect is not good,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/12C03B37/00C03C13/06B29C67/24C04B111/28
CPCC04B26/122C03B37/00C03C13/06B29C67/245C04B2201/32C04B2111/28C04B14/46C04B14/4643C04B14/024
Inventor 马国栋谢红杨佳陈占虎王慧茹孟辉江刘建伟
Owner HEBEI SANKAISHENFA SCI & TECH CORP LTD
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