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Method for producing magnesium oxysulfate foamed cement by embedded retractable particle method

A technology of magnesium oxysulfate cement and foam cement, which is applied in applications, household appliances, and other household appliances. It can solve the problems of high compatibility between foaming agent and foam stabilizer, unstable product quality, and the size of foam cement cells. inequality problem

Inactive Publication Date: 2015-07-01
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above process, whether physical foaming or chemical foaming is used, the cell size of the resulting foam cement is greatly affected by temperature, and the matching between the foaming agent and the foam stabilizer is very high. If the mold volume is too large, Due to the influence of the cement's own gravity, it will also cause the phenomenon of uneven cell size at the top and bottom of the foam cement, resulting in unstable product quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0018] First, weigh 10kg of commercially available magnesium oxysulfate cement and 32kg of polyacrylamide spherical particles with an average particle size of 3mm, mix them uniformly, and then pour the mixture into a pre-prepared mold and stop for 24 hours. During the static stop, the cement will achieve After coagulation and hardening, magnesium oxysulfate foam cement can be obtained after natural curing for 28 days.

example 2

[0020] First weigh 10kg of commercially available magnesium oxysulfide cement and 30kg of spherical particles of acrylic acid and polyvinyl alcohol copolymer with an average particle size of 5mm, mix them uniformly, and then pour the mixture into a pre-prepared mold for 24 hours. During this period, the cement will be solidified and hardened, and finally after 28 days of natural curing, the magnesium oxysulfate foamed cement can be obtained.

example 3

[0022] First, weigh 10kg of commercially available magnesium oxysulfide cement and 28kg of spherical particles of calcium alginate with an average particle size of 5mm, mix them uniformly, and then pour the mixture into a pre-prepared mold and stop for 24 hours. During the static stop, the cement will Realize coagulation and hardening, and finally after natural curing for 28 days, magnesium oxysulfate foam cement can be obtained.

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Abstract

The invention provides a method for producing magnesium oxysulfate foamed cement by the embedded retractable particle method, and relates to a method for producing the magnesium oxysulfate foamed cement. The magnesium oxysulfate foamed cement is prepared from the following raw materials in parts by weight: 100 parts of marketed magnesium oxysulfate cement, and 200 to 400 parts of particular water absorbing material. The method for producing the high-performance magnesium oxysulfate foamed cement comprises the following steps: metering raw materials; mixing; pouring; delaying curing; condensing and hardening; and naturally maintaining. The method has the characteristics of being simple in formula, outstanding in repeatability, small in environmental influence, small in production cost, and energy saving; the produced magnesium oxysulfate foamed cement has the advantages of being light in mass, high in strength, heat preserved and insulated, stable in size, and free of environmental pollution; the magnesium oxysulfate foamed cement is particularly suitable for being used as a heat preserving and insulation material for an outer wall, a roof and a floor of a building.

Description

technical field [0001] The invention relates to a method, in particular to a method for producing magnesium oxysulfide foam cement by adopting a pre-embedded shrinkable particle method. Background technique [0002] Insulation materials are generally materials with a thermal coefficient less than or equal to 0.2. The development of thermal insulation materials is rapid, and the use of good thermal insulation technology and materials in industry and construction can often achieve twice the result with half the effort. Every ton of mineral wool insulation products used in buildings can save one ton of oil a year. [0003] The thermal insulation material can collect excess heat and release it in a timely and stable manner, with small gradient changes, which can effectively reduce the loss. The room temperature can be trended and the winter heat preservation can play a balancing role. In the decoration of new buildings and the renovation of old buildings, it can overcome the c...

Claims

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Application Information

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IPC IPC(8): C04B9/04C04B38/02
Inventor 张文政于芳赖强郭坤璐牟江南王丹焱
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY