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Foam magnesium oxychloride cementitious composite material for prefabricated partition wallboards and preparation method of foam magnesium oxychloride cementitious composite material

A composite material and a technology of magnesium oxychloride, which are applied in the field of foamed magnesium oxychloride cementitious composite materials and their preparation, can solve the problems of warping deformation, poor water resistance, large volume and the like, and achieve the improvement of toughness, reduction of production cost and strength. And the effect of water resistance improvement

Active Publication Date: 2016-11-16
天津市福特恩科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the defects of low strength, large volume, poor water resistance, warping and deformation of the foamed magnesium oxychloride board produced by the above-mentioned prior art, and to provide a foamed magnesium oxychloride board that can be used for prefabricated partition boards. Magnesium gel composite material formula and preparation method thereof

Method used

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  • Foam magnesium oxychloride cementitious composite material for prefabricated partition wallboards and preparation method of foam magnesium oxychloride cementitious composite material
  • Foam magnesium oxychloride cementitious composite material for prefabricated partition wallboards and preparation method of foam magnesium oxychloride cementitious composite material
  • Foam magnesium oxychloride cementitious composite material for prefabricated partition wallboards and preparation method of foam magnesium oxychloride cementitious composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A foamed magnesium oxychloride cementitious composite material for prefabricated partition walls, comprising 16 parts of magnesium chloride hexahydrate, 56 parts of water, 80 parts of light-burned magnesium oxide, 20 parts of composite foaming agent, 25 parts of active fillers, inert 2 parts of filler and 2 parts of compound modifier.

[0024] Preparation of a foamed magnesium oxychloride cementitious composite material for prefabricated partition wall panels:

[0025] A. Mix 16 parts of magnesium chloride hexahydrate and 56 parts of water into an aqueous solution of magnesium chloride with a specific gravity of 1.23, mix with 80 parts of light-burned magnesium oxide and 25 parts of active fillers, stir for 5 minutes and then add 2 parts of composite modifier and inert filler 2 in sequence After stirring for 15 minutes, the foam prefabricated by 25 parts of composite foaming agent was added, and after stirring for 5 minutes, the foamed magnesium oxychloride cemented composit...

Embodiment 2

[0031] A magnesium oxychloride cementitious composite material for prefabricated partition wall panels, comprising 20 parts of magnesium chloride hexahydrate, 57 parts of water, 100 parts of light burnt magnesium oxide, 30 parts of composite foaming agent, 20 parts of active filler, and 3 parts of inert filler Parts and 3 parts of compound modifier.

[0032] Preparation of a foamed magnesium oxychloride cementitious composite material for prefabricated partition wall panels:

[0033] A. Mix 20 parts of magnesium chloride hexahydrate and 57 parts of water into an aqueous solution of magnesium chloride with a specific gravity of 1.24, add 100 parts of light-burned magnesium oxide and 20 parts of active fillers to mix, stir for 5 minutes and then add 3 parts of composite modifier and 3 parts of inert fillers in sequence After stirring for 20 minutes, add 30 parts of foam prefabricated by composite foaming agent, and stir for 3 minutes to obtain the foamed magnesium oxychloride cementi...

Embodiment 3

[0039] According to the formula and preparation method described in Example 2, the addition amount of the composite foaming agent was changed to prepare a series of foamed magnesium oxychloride cementitious composite materials, and the effect of the addition amount of the composite foaming agent on the performance of the cementitious composite material was investigated.

[0040] Table 3 The effect of different compound modifiers

[0041]

[0042] According to the formula and preparation process described in Example 2, the addition amount of the composite foaming agent was changed, and the resulting foamed magnesium oxychloride cementitious composite material had a smooth and even surface, no warpage, deformation, frost cracking, etc., and all had relatively high mechanical strength. High and low bulk density, it can be seen that the foamed magnesium oxychloride cementitious composite materials prepared with different compound foaming agent addition amounts can meet the requirements ...

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Abstract

The invention discloses a foam magnesium oxychloride cementitious composite material for prefabricated partition wallboards and a preparation method of the foam magnesium oxychloride cementitious composite material. The foam magnesium oxychloride cementitious composite material is prepared from, by weight, 15-25 parts of magnesium chloride hexahydrate, 40-80 parts of water, 80-100 parts of light calcined magnesia, 5-40 parts of active filler, 1-10 parts of inert filler, 1-5 parts of a compound modifier and 10-40 parts of a compound foaming agent. The preparation method includes: preparing the magnesium chloride hexahydrate into a water solution, adding the light calcined magnesia and the active filler, and stirring for 1-5min; sequentially adding the compound modifier and fiber filler, and stirring for 5-25min; adding foam pre-prepared by the compound foaming agent, and stirring for 1-5min; injecting obtained foam magnesium oxychloride cementitious material slurry into moulds, and performing curing and forming. The prefabricated partition wallboards prepared from the foam magnesium oxychloride cementitious composite material have advantages of high strength, low volume weight, fire resistance and heat insulation, and problems of summing, buckling deformation and the like are avoided.

Description

Technical field [0001] The invention belongs to the field of development of new building materials, and in particular relates to a foamed magnesium oxychloride cementitious composite material used for prefabricated partition boards and a preparation method thereof. Background technique [0002] Magnesium oxychloride cementitious material, also called magnesium oxychloride cement, is the base material of the new cementitious composite material. This kind of gelling material is based on MgCl 2 , MgO and H 2 O is mixed and formulated into MgCl in a certain proportion 2 -MgO-H 2 On the basis of the O ternary system, it is fully hydrated to form a Mg x (OH) y ·Cl z ·NH 2 O is the main component of the gelling material. Compared with magnesium oxychloride cementitious material, foamed magnesium oxychloride cementitious material introduces closed cells to isolate the internal communication channels of the system, which fundamentally solves the halogen-returning frost caused by the migra...

Claims

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Application Information

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IPC IPC(8): C04B38/02C04B28/32
CPCC04B28/32C04B2201/50C04B18/08C04B18/146C04B18/0427C04B18/24C04B18/26C04B16/0633C04B16/0683C04B16/0691C04B14/42C04B14/386C04B14/383C04B22/064C04B24/42C04B24/122C04B22/124C04B22/16C04B22/149C04B24/085C04B38/02
Inventor 杨红健何祯辉郭涛马秋杨少明
Owner 天津市福特恩科技发展有限公司
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