Foamed glass insulation board for buildings, and preparation method thereof

Abstract

The invention discloses a foamed glass insulation board for buildings, and a preparation method thereof. The foamed glass insulation board comprises an unfired foam glass insulation board base body, which comprises, by weight, 20-30 parts of glass powder; 20-45 parts of cement; 2-5 parts of a nanoscale inorganic porous material; 4-8 parts of polypropylene chopped fibers; 5-10 parts of a water-soluble polyester resin; 5-10 parts of water-soluble acrylic resin; and the balance of water, wherein the cement can be subjected to polymerization reaction with the glass powder, the nanoscale inorganicporous material is used as a foaming enhancer, and the water-soluble polyester resin and the water-soluble acrylic resin are subjected to cross-linking reaction in the foaming process of polymerization of the glass powder and the cement, so that the compactness and the mechanical strength of the baking-free foamed glass insulation board matrix are improved. According to the invention, on the premise of having excellent heat preservation and fireproof performance, the foamed glass insulation board is low in manufacturing cost and light in weight, high-temperature sintering is not needed in thepreparation process, energy consumption is greatly reduced, and the building material conforms to the technical development direction of energy conservation and low-carbon management of building materials.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a foamed glass thermal insulation board for building, and also relates to a preparation method of the foamed glass thermal insulation board. Background technique [0002] As the energy crisis intensifies, China pays more and more attention to the energy-saving management of building materials. Promoting energy-saving building materials has become an important development direction for building a low-carbon economy, achieving energy-saving and emission reduction goals, and maintaining sustainable social and economic development. Exterior wall insulation is one of the main manifestations of energy-saving building materials. Existing exterior wall insulation materials mainly include organic insulation materials, inorganic insulation materials and organic-inorganic composite insulation materials. [0003] Foam glass insulation board is an inorganic environmental protecti...

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Problems solved by technology

However, due to the use of graphite powder (the particle size of the raw material is usually no more than 20 microns) as the foaming agent in this method, it is difficult to add it, and the effect of uniform mixing with glass powder by ball milling is more demanding, resulting in the obtained foam glass insulation board batch. Secondary stability is poor, it is difficult to carry out quality control in the actual mass production, and simply use glass powder as raw material, graphite as foaming agent, the obtained foam glass insulation board has low surface strength, poor crack resistance and poor durability At the same time, the necessary process of existing glass insulation boards is high-temperature sintering, which consumes a lot of energy, resulting in high manufacturing costs of foamed glass insulation boards, and is not conducive to the technical development direction of energy-saving and low-carbon management of building materials.

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