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Method for producing magnesium oxysulfate foam cement by pre-embedded shrinkable particle method

A technology of magnesium oxysulfate cement and foam cement, which is applied in applications, household appliances, and other household appliances. Instability and other problems, to overcome the different effects of the upper and bottom cells

Inactive Publication Date: 2018-04-27
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 method for producing magnesium oxysulfide foamed cement by pre-embedded shrinkable particles relates to a method for producing magnesium oxysulfide foamed cement, comprising the following raw materials in parts by weight: 100 parts of commercially available magnesium oxysulfide cement; 200 parts of granular water-absorbing material ‑400 servings. The manufacturing steps of the high-performance magnesium oxysulfide foamed cement include: raw material metering, mixing, pouring static stop, coagulation hardening and natural curing. The present invention has the characteristics of simple formula, excellent repeatability, little environmental impact, low production cost and energy saving. The obtained magnesium oxysulfide foamed cement has the advantages of light weight and high strength, thermal insulation, stable volume, and no pollution to the environment. The product is especially suitable for thermal insulation materials of building exterior walls, roofs and floors.

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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Patent Type & Authority Patents(China)
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