A kind of geopolymer-polymer composite board and its preparation method

Abstract

The invention discloses a geopolymer-polymer composite board and a preparation method thereof. The geopolymer-polymer composite board comprises the following components in parts by weight: 12-18 parts of resin adhesive liquid, 59-66 parts of concentrated alkali liquid, 30-40 parts of building rubbish, 30-40 parts of fly ash, 30-40 parts of cement, 0.5-1 part of glass fibers and 3-5 parts of interface intensifiers. The method comprises the following steps of (1) crushing and screening of the building rubbish and the fly ash; (2) blending a geopolymer-polymer composite material: dissolving resin into benzyl alcohol, adding ethylene diamine to form the resin adhesive liquid, preparing the concentrated alkali liquid, gradually adding the building rubbish and the fly ash to the concentrated alkali liquid, continuously stirring, and sequentially adding the cement, the glass fibers, the interface intensifiers and the resin adhesive liquid at the same time to obtain the geopolymer-polymer composite material; (3) forming the geopolymer-polymer composite board: pouring the geopolymer-polymer composite material into a mould, then transferring the mould into a drying box for drying, cooling, and then taking out a product. The geopolymer-polymer composite board disclosed by the invention has the advantages of high compressive strength, good water resistance, simple forming process, low energy consumption and suitability for popularization and application.

Description

technical field [0001] The invention relates to a recycling of construction waste and fly ash geopolymer, in particular to a geopolymer-polymer composite board and a preparation method thereof. Background technique [0002] The national "Twelfth Five-Year" development plan regards energy conservation and emission reduction as the primary issue of industrial development, and at the same time, resin-based composite materials are one of the development priorities of new materials. my country is facing severe challenges in the treatment of construction waste and fly ash: it is estimated that my country will produce at least 2 billion tons of construction waste residue by 2020, but the current conversion rate of construction waste resources is less than 5%, which is more than 90% in Europe and the United States. There is still a big gap in the conversion rate; industrial coal combustion produces about 200-400 million tons of fly ash every year, and the utilization rate is low and ...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of geopolymer-polymer composite plate and its preparation method, this plate solves the processing of construction waste and fly ash, and the problem of shortage of natural resources, and the plate has higher compressive strength, relatively Good water resistance; its molding process is simple, does not require high temperature sintering, low energy consumption, suitable for popularization and application

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