Corrosion-resistant fireproof adhesive for light steel structure

A technology of light steel structure and fireproof glue, which is applied in fireproof coatings, anti-corrosion coatings, coatings, etc., can solve problems such as poor fireproofing ability, building collapse, loss of mechanical strength, etc., and achieve prolonging structural life, stable product quality, and raw materials The effect of proportioning science

Inactive Publication Date: 2016-11-16
SHENDUN FIREPROOF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the steel structure itself will not burn, in fact, poor fire resistance is just a major weakness of light steel structure buildings. If a steel structure building encounters a fire, when the ambient temperature exceeds 1000 ° C, the steel components will instantly lose 80% mechanical strength, causing the collapse of the building

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Raw materials (the following are parts by weight): 100 parts of melamine formaldehyde resin (MF resin), 15 parts of anti-ultraviolet agent titanium dioxide, 20 parts of durable agent pentaerythritol, 8 parts of flame retardant, toughening agent adopts chlorinated paraffin 52#, consumption 8 parts, phosphoric acid 20 parts.

[0031] In a reactor with a stirring and heating tube, raise the temperature of MF resin to 45°C, add titanium dioxide, flame retardant, and pentaerythritol to react for 15 minutes, add chlorinated paraffin, raise the temperature to 65°C, and react for 30 minutes. At this time, the reaction system The viscosity is not large, it is a suspension. Add 20 parts of phosphoric acid to start polymerization. When the viscosity of the reaction system increases significantly, stop the reaction (about 15 minutes).

[0032] The color of the product is white, and the viscosity is 20 seconds when applied to 4 cups (25°C).

Embodiment 2

[0034] Raw materials (the following are parts by weight): 100 parts of melamine formaldehyde resin (MF resin), 15 parts of anti-ultraviolet agent zinc oxide (400 mesh), 15 parts of durable agent bisphenol A, 8 parts of flame retardant, toughening agent adopts chlorination Paraffin wax 52#, consumption is 7 parts, phosphoric acid (commercially available, mass content 85%, the same below) 20 parts.

[0035] In a reactor with a stirring and heating tube, raise the temperature of MF resin to 45°C, add zinc oxide powder, flame retardant, and pentaerythritol to react for 15 minutes, add chlorinated paraffin, raise the temperature to 65°C, and react for 30 minutes. The viscosity of the system is not high, it is a suspension. Add 20 parts of phosphoric acid to start polymerization. When the viscosity of the reaction system increases significantly, stop the reaction (about 15 minutes).

[0036] The color of the product is black, and the viscosity is 18 seconds when applied to 4 cups (...

Embodiment 3

[0038] Raw materials (the following are parts by weight): 100 parts of melamine formaldehyde resin (MF resin), 15 parts of anti-ultraviolet agent carbon black, 15 parts of durable agent BLE, 8 parts of flame retardant, toughening agent adopts chlorinated paraffin 52#, consumption 7 parts, phosphoric acid 15 parts.

[0039] In a reactor with a stirring and heating tube, raise the temperature of MF resin to 45°C, add zinc oxide powder, flame retardant, and pentaerythritol to react for 15 minutes, add chlorinated paraffin, raise the temperature to 65°C, and react for 30 minutes. The viscosity of the system is not high, it is a suspension. Add 20 parts of phosphoric acid to start polymerization. When the viscosity of the reaction system increases significantly, stop the reaction (about 15 minutes).

[0040] Coating 4 cups (25°C) has a viscosity of 16 seconds.

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Abstract

The invention provides a corrosion-resistant fireproof adhesive for a light steel structure, comprising the following ingredients in parts by weight: 100 parts of melamine formaldehyde resin, 10-20 parts of an anti-ultraviolet agent, 20 parts of a durable agent, 5-15 parts of a flame retardant, 5-10 parts of a toughening agent and 5-20 parts of phosphoric acid. The product provided by the invention is scientific in raw material ratio, simple in process and stable in product quality. The product provided by the invention has relatively high viscosity and can form a dense coating on the surface of light steel, and the coating can resist the high temperature of 400 DEG C, is resistant to acid and alkali and is resistant to corrosion, so that the service life of the light steel structure is prolonged.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a special anti-corrosion material for light steel buildings. Background technique [0002] Light steel structure, that is, light steel structure building system, is mainly based on high-performance structural steel and high-efficiency functional materials such as hot-rolled light H steel, light welded steel, high-frequency welded steel, cold-formed thin-walled steel, thin steel plate and thin-walled steel pipe. , assembled with various high-efficiency decorative connection materials. Steel plate thickness of main components of light steel structure: ≤10mm. The light steel structure adopts high-efficiency light-weight thin-walled profiles, which has light weight, high strength and small footprint. Components and accessories are all automated and high-precision production, and product specifications can be serialized and finalized. There is no wet work in light stee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D161/28C09D191/06C09D5/08C09D5/18C09D7/12
CPCC09D161/28C08L2201/02C08L2205/03C09D5/08C09D5/18C09D7/61C09D7/63C09D7/65C08L91/06C08K13/02C08K2003/2241C08K5/053C08K2003/329C08K2003/2296C08K5/13C08K3/04
Inventor 杨京学
Owner SHENDUN FIREPROOF TECH
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