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Inorganic expandable refractory composition

A composition and refractory technology, applied in the field of inorganic expandable refractory composition, can solve problems such as uneven expansion

Active Publication Date: 2016-12-14
(株)庆东ONE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this coating has the problem that the coating needs to be thick to exhibit fire resistance, and the expansion is not uniform in the flame

Method used

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  • Inorganic expandable refractory composition
  • Inorganic expandable refractory composition
  • Inorganic expandable refractory composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1- Embodiment 6

[0054] Preparation of the expandable powder binder of the present invention

[0055] A foaming auxiliary material, a refractory auxiliary material, a waterproofing agent, etc. are sequentially introduced to the silicate, and the mixture is sufficiently stirred at a speed of 1000 rpm or more for 4 hours to prepare a binder for expandable powder.

[0056] table 3

[0057] category

[0058] (Unit: wt%)

Embodiment 7- Embodiment 16

[0059] Preparation of the expandable powder of the present invention

[0060] The binder of the expandable powder prepared in Examples 1 to 6 was dried to the moisture content listed in Table 4. It can be dried by various methods including hot air flow, far infrared rays, microwave, etc., and after drying, use a grinder to grind the particles so that the particle size below 325 mesh becomes 90wt% or more to prepare expandable powder.

[0061] Table 4

[0062] Example 7

[0063] However, in Example 16, a process of hydrophobically treating the surface of the expandable particles prepared in Example 11 with methoxysilane was added.

Embodiment 16- Embodiment 27

[0064] Preparation of the inorganic expandable refractory composition of the present invention

[0065] table 5

[0066]

[0067] (Unit: wt%)

[0068] HEC = hydroxyethyl cellulose, HPC = hydroxypropyl cellulose

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Abstract

The present invention provides a refractory composition containing expandable powder that consists of an alkali metal oxide and silicon oxide and is coated onto a steel frame structure of a building or a structure requiring fire prevention or fireproofing in order to prevent the strength or resistance force of the structure from being deteriorated by high-temperature heat in case of fire. The refractory composition of the present invention specifically consists of 1wt% to 50wt% of expandable powder composed of silicate, 20wt% to 80wt% of silicate binder, 0.05wt% to 5wt% of stabilizer, and 0.01wt% to 10wt% of fiber.

Description

Technical field [0001] The present invention relates to an expandable powder and an inorganic expandable refractory composition containing the expandable powder. Specifically, the present invention relates to the following expandable powder and an inorganic expandable refractory composition containing the expandable powder, by coating the expandable powder on surfaces requiring fire resistance (such as ships, factory equipment, tunnels, And the steel frame structure of the building), the expandable powder can prevent the strength and resistance of the steel frame and the structure from being degraded by high temperature heat during a fire. Background technique [0002] As buildings become taller and taller, steel frame structures are mostly used, and damage to crews, engines, and fuel components in ships causes serious damage. In tunnels, structural collapse may easily occur in the event of a fire, and there are significant fire hazards in storage tanks (such as LNG / LPG), steel ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B35/16C04B35/19
CPCC04B35/16C04B35/19C04B35/66C09K21/02C04B2235/449C04B2235/3205C04B2235/442C04B2235/3201C04B2235/3206C04B2235/3436C04B2235/349C04B2235/5216C04B2235/445C04B2235/3427
Inventor 裵承训具庆谟
Owner (株)庆东ONE