Cement core board and preparation method thereof

Abstract

The invention relates to a cement core board and a preparation method thereof. The cement core board contains the following components in parts by weight: 50 parts of sulphate aluminum cement, 25 parts of water, 1 part of polyacrylonitrile fiber, 0.15 part of edible seaweed powder, 0.25 part of calcium stearate, and 0.05 part of sodium tripolyphosphate. The formula is reasonable, the raw materialsare low in price and easily available, and a steel board of the prepared cement core board is weak in corrosion strength, does not have the phenomena of halogen return, and can replace magnesite cement boards.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a cement core board and a preparation method of the cement core board. Background technique [0002] Magnesite cement board is mainly used in the field of building decoration. Representative products include magnesite exterior wall insulation board, magnesite fireproof door core board, magnesite hollow foam partition wall board, foam fireproof board, etc. In addition, Magnesite ventilation flue, magnesite ventilation pipe, and sandwich color steel plate also occupy a considerable part of the market. However, the raw materials of magnesite cement board contain magnesium oxide and magnesium chloride. With the requirements of national environmental protection, a large number of magnesium oxide manufacturers have shut down their factories, resulting in a shortage of magnesium oxide supply at this stage. Later, with the strengthening of national environmental protection e...

AI Technical Summary

Problems solved by technology

However, the raw materials of magnesite cement board contain magnesium oxide and magnesium chloride. With the requirements of national environmental protection, a large number of magnesium oxide manufacturers have shut down their factories, resulting in a shortage of magnesium oxide supply at this stage. Later, with the strengthening of national environmental protection efforts, the supply of magnesium oxide may be there will still be problems

Therefore, there is an urgent need for a cement core board that does not use magnesium oxide, which can well solve the problem of tight supply of raw materials

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