Preparation method of transparent fireproof gel and composite fireproof glass

Abstract

The invention discloses a transparent fireproof gel, which comprises the following components in parts by weight: 100 parts of alkaline silica sol, 30-60 parts of curing agent and 5-55 parts of auxiliary agent, the auxiliary agent consists of 5-5 parts 20 parts of stabilizer, 0-10 parts of dispersant, 0-15 parts of flame retardant and 0-10 parts of char-forming agent. The present invention also discloses a method for preparing composite fireproof glass using the transparent fireproof gel of the above formula, which uses alkaline silica sol as the base material, wherein a stable inorganic dispersion with high solid content is obtained by a concentration method, and a transparent fireproof glass is obtained. Gel; the fire resistance limit of the composite fireproof glass prepared by using the transparent fireproof gel can reach 25-143min; the preparation method solves the relatively high cost in the process of preparing transparent fireproof gel and composite fireproof glass with silica particles as the base material High, difficult to disperse, complex operation, poor stability, low solid content and other problems.

Description

technical field [0001] The invention relates to the field of composite fireproof glass, in particular to a composite fireproof glass and a transparent fireproof gel contained therein. Background technique [0002] With the rapid development of my country's economy, society and urban construction, a large number of large buildings and underground buildings have sprung up, and new products and materials have been put into use, and new fire safety issues have also been brought. Modern buildings have an increasing demand for glass and its products. Safety and fire prevention is a new functional requirement for glass in modern buildings, and fire-resistant glass has emerged as the times require. Fire-resistant glass is a type of special glass that can maintain its integrity and even heat insulation in the prescribed fire-resistant test. The composite fire-resistant glass is to add fire-resistant glue between two or more pieces of glass to make it solidify into a transparent gel. ...

AI Technical Summary

Problems solved by technology

This method has the following problems: firstly, the price of silica raw materials with a specific particle size is relatively high; secondly, silica needs to be modified in advance to make the dispersion more uniform and stable, so the operation is more complicated and further increases the cost, and the stability of the dispersion is poor; in addition, during the dispersion process, the overall viscosity of the solution will rise sharply, and problems such as difficulty in dispersion will occur. Even if the viscosity is reduced by adding an alkaline solution to adjust the pH, a higher viscosity cannot be obtained Silica dispersion with solid content, which limits the improvement of the fire resistance limit of composite fireproof glass

In addition, water glass is also commonly used as a raw material to prepare transparent gel for composite fireproof glass, but due to the low modulus and low solid content of water glass, the prepared transparent gel has poor strength and general fire resistance.

[0004] It can be seen from the current technical methods for preparing composite fireproof glass that there are still problems such as high cost, difficult dispersion, complicated operation, poor stability, low solid content, and poor fire resistance.

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