Preparation method of high-strength foam glass

Abstract

The invention provides a preparation method of high-strength foam glass. The method comprises the steps that glass waste, slag, modified attapulgite clay, polyvinyl alcohol, mica powder, quartzite, mirabilite, glass fiber, carbon black, titanium dioxide, sodium fluosilicate, microporous calcium carbonate and a foaming agent are ground and mixed and put into a mold to form a foam glass substrate, the upper surface and the lower surface of the substrate are coated with graphene modified polyurethane coatings respectively, drying is conducted, and the high-strength foam glass is obtained. The foam glass not only has the high mechanical strength and the good anti-bending effect, but also can effectively improve the microporous structure of the surface of the foam glass, and the foam glass hasthe good dampproof, sound absorption and thermal insulation properties and has the good application value and prospect.

Description

technical field [0001] The invention relates to the field of new building materials, in particular to a preparation method of high-strength foam glass. Background technique [0002] With the continuous improvement of people's requirements for the quality, beauty and comfort of buildings, higher requirements are also put forward for building materials. Among them, foam glass is a light-weight and high-strength building material with superior performance in heat insulation (cold preservation), sound absorption, moisture resistance, and fire prevention. The operating temperature range is from minus 196 degrees to 450 degrees. Class A non-combustibility has the same service life as buildings, and is moisture-permeable. The coefficient is almost zero. And foam glass can use waste solid glass as raw material to make its economic benefits of energy saving and environmental protection more prominent. Fields such as sound absorption occupy an increasingly important position. [00...

AI Technical Summary

Problems solved by technology

[0003] However, the existing foam glass plate technology has the following defects: (1) Because the foam glass has a pore structure inside, the plate is easy to break during the handling process, which affects the construction speed and thermal insulation effect

(2) The microporous structure on the surface of foam glass will consume a large amount of bonding materials, which will affect the construction efficiency and increase the construction cost

Although the film-coated foam glass plate of the present invention has a certain bending resistance, the preparation method is complicated, and the surface of the foam glass plate needs to be covered with multiple layers of materials, and the bonding firmness needs to be improved.