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Exterior wall coating based on magnesium oxychloride cement and preparation method of exterior wall coating

A technology of magnesium oxychloride cement and exterior wall coatings, applied in the field of coatings, can solve the problems of waste of manpower, material and financial resources, construction difficulties, peeling off pieces, etc., and achieve the effects of convenient construction and operation, good fire performance and beautiful appearance

Inactive Publication Date: 2015-04-08
QINGHAI INST OF SALT LAKES OF CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] There are many exterior wall coating materials and technologies, but there are also many problems, such as drumming, cracking, and peeling off. Once the above problems occur, it is difficult to repair and maintain. It is relatively complicated, and at the same time it wastes a lot of manpower, material and financial resources, so it is difficult to promote in the vast agricultural and pastoral areas

Method used

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  • Exterior wall coating based on magnesium oxychloride cement and preparation method of exterior wall coating

Examples

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Effect test

Embodiment 1

[0020] The magnesium oxychloride cement exterior wall coating based on the present embodiment comprises multiple components, and every component adds and mixes according to mass ratio, and the step of this magnesium oxychloride cement exterior wall coating comprises the steps:

[0021] A. combined figure 1 As shown, 100 parts of caustic dolomite powder, 5 parts of fly ash, 20 parts of straw, and 10 parts of sandy soil mixture are stirred and mixed to form a base material. Wherein, the length of the straw is crushed to less than 0.5 cm; the sand-soil mixture is formed by mixing sand and soil at a mass ratio of 1:1.

[0022] B. Add 120 parts of magnesium chloride aqueous solution with a mass fraction of 23 to the base material, and stir again to form a coating on the outer wall.

[0023] Apply the coating obtained in this example to the surface of the exterior wall with a coating thickness of 5 mm. After curing for a period of time and after the water evaporates and dries up, t...

Embodiment 2

[0025] The difference between this embodiment and embodiment 1 is the proportional relationship between the components,

[0026] In this embodiment, 100 parts of caustic dolomite powder, 20 parts of fly ash, 45 parts of straw, and 65 parts of sand and soil mixture are mixed to form a base material, and then 175 parts of magnesium chloride aqueous solution with a mass fraction of 20 are added and mixed evenly again. Get paint. Other steps are described with reference to embodiment 1.

[0027] Wherein, the sand-soil mixture is formed by mixing sand and soil at a mass ratio of 5:8; of course, in other embodiments, the straw can also be replaced by sawdust, and the fly ash can also be replaced by silica fume. It is better to control the mass ratio of the caustic dolomite powder, fly ash or silica fume, straw or sawdust, sandy soil mixture, and magnesium chloride aqueous solution within the range of 100:5-20:20-45:10-65:120-175.

[0028] Apply the paint obtained in this example t...

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Abstract

The invention relates to technical field of coatings, and particularly relates to a preparation method of an exterior wall coating of magnesium oxychloride cement. The method comprises the following steps: stirring and mixing caustic dolomite dust, coal ashes or silica fume, straws or sawdust and a sand mixture evenly at the mass ratio of 100 to (5-20) to (10-50) to (10-70), so as to form a backing material; adding 20-25 parts by weight of magnesium chloride water to the backing material; and stirring evenly to form the coating coated on an exterior wall, wherein the mass ratio of the caustic dolomite dust to the magnesium chloride water is 1 to (1-2.1).The exterior wall coating disclosed by the invention is good in fireproof performance, good in cold tolerance, simple in process, convenient to construct and operate, low in cost, and very suitable for popularization and application in the northwest region, and also has a certain heat preservation effect.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an exterior wall coating and a preparation method thereof. Background technique [0002] There are many exterior wall coating materials and technologies, but there are also many problems, such as drumming, cracking, and peeling off. Once the above problems occur, it is difficult to repair and maintain. It is relatively complicated, and it also wastes a lot of manpower, material and financial resources, so it is relatively difficult to promote in vast agricultural and pastoral areas. [0003] With the needs of new rural construction, while focusing on the development of rural economy, improving the living conditions of farmers and herdsmen is also an issue that cannot be ignored. Especially in the northwest region, where the natural conditions are relatively harsh, there is an urgent need for housing insulation. However, the performance requirements of coatings in harsh environm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/32C04B18/08C04B18/24
CPCY02W30/91
Inventor 郑卫新常成功肖学英文静董金美李颖
Owner QINGHAI INST OF SALT LAKES OF CHINESE ACAD OF SCI
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