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Nanometer composite non-asbestos heat insulation felt and production method thereof

A nano-composite, production method technology, applied in the field of nano-composite non-asbestos thermal insulation felt, can solve the problems of large environmental impact, unwillingness of on-site construction personnel, difficulty in selecting thermal insulation materials, etc., and achieve low thermal conductivity at room temperature and excellent thermal insulation performance , the effect of small bulk density

Inactive Publication Date: 2015-03-25
重庆市亚核保温材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, my country's nuclear power industry has been booming, and the demand for thermal insulation materials has also increased. It has become more and more difficult to choose thermal insulation materials. The selection of aluminum silicate and glass wool has a great impact on the environment, especially for construction workers on site. Unwilling; choose silicate, and the manufacturer can't provide relevant test reports for asbestos-free

Method used

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  • Nanometer composite non-asbestos heat insulation felt and production method thereof
  • Nanometer composite non-asbestos heat insulation felt and production method thereof
  • Nanometer composite non-asbestos heat insulation felt and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Put 22 kg of brucite fiber (a fourth-grade product produced by Shaanxi Nanfang Metal Mining Co., Ltd.) in the raw material processor, add an appropriate amount of industrial pure water (chloride ion content is less than 5 mg / kg, conductivity (25 °C) is less than 10 μS / cm industrial pure water), soak for 20-30 minutes, then clear with industrial pure water, drain the cleaning water, and repeat this until the chloride ion content in the cleaning water is less than 95 mg / kg.

[0039] Add 10 kg of aluminum silicate fiber cotton, 3.8 kg of debonding agent (dioctyl sodium sulfosuccinate) and 540 kg of industrial pure water into the stirring tank; after 5 minutes after starting up, add the brucite fiber treated by the above steps 22 kilograms, and 1.8 kilograms of modified dispersants, 4 kilograms of inorganic active soil, 16 kilograms of sepiolite wool and 0.9 kilograms of loosening agent (sodium hexametaphosphate) are added to the stirring tank; after continuing to stir for ...

Embodiment 2～10

[0046] Using the raw materials and dosages listed in Table 2 below, the same treatment as in Example 1 (wherein the brucite fiber treatment method is the same as that of the brucite fiber in Example 1) was used to obtain products 2-10. The complexing dose used in each embodiment is 0.2 kg.

[0047] Table 2: The raw material quantity (unit: kilogram) that uses among the embodiment 2~10

[0048]

[0049] The contents and performance indexes of each component in products 2-10 are shown in Table 3 and Table 4 below.

[0050] Table 3: each component content (weight %) table in the finished product of embodiment 2~10

[0051]

[0052] Table 4: Performance Index Table of Products 2-10 of Examples 2-10

[0053]

[0054]

[0055] The thermal insulation performance of the product of the present invention is far superior to that of common thermal insulation blankets, and its main performances are compared with those of common thermal insulation blankets, as shown in Table 5...

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Abstract

The invention provides a nanometer composite non-asbestos heat insulation felt which is an elastic composite material enriched in a nanoscale closed porous meshed structure. The nanometer composite non-asbestos heat insulation felt comprises the following components in percentage by weight: 6-8.5wt% of nanometer silicon, 34-42wt% of brucite, 18-34wt% of sepiolite, 12-27wt% of aluminum silicate, 6-8wt% of inorganic active soil, 1.6-2wt% of debonding agent, 0.7-0.9wt% of modified dispersing agent, 0.01-0.02wt% of complexing agent and the balance of water. According to the nanometer composite non-asbestos heat insulation felt, the content of soluble chloride ions is less than or equal to 100mg / kg, and the sum of the content of soluble silicate and sodium ions is more than 10000mg / kg. The product is good in thermal insulation properties, high in service temperature and high in rebound rate, and an asbestos component does not exist in the product.

Description

technical field [0001] The invention relates to a nano-composite non-asbestos thermal insulation blanket and a production method thereof. Background technique [0002] For the development of thermal insulation materials in China, it has experienced from hard materials to soft materials, and then from soft materials to microporous materials. Now the three major products of aluminum silicate, silicate and glass wool occupy more than 90% of the country's thermal insulation market. Aluminum silicate and glass wool have the advantages of good temperature resistance and moisture resistance, but their fibers irritate the human body, pollute the environment, and especially endanger the health of construction workers during installation and maintenance, which has not been solved so far. Silicate products solved these problems very well, and were recognized by the domestic nuclear industry and shipbuilding industry, and also guaranteed the market demand at that time. In 2009, when t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B30/02
Inventor 孙廷全刘复全游绍贤张洪
Owner 重庆市亚核保温材料股份有限公司
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