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A kind of attapulgite decorative mortar and its preparation method
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A technology of facing mortar and attapulgite, which is applied in the field of building materials, can solve the problems of changing decorative effect, unstable coloring, decorative mortar air permeability and loss of decorative style, so as to improve compressive strength and flexural strength, and solve the problem of turtle Crack and micro-crack defects, maintain breathability and decorative style effect
Active Publication Date: 2021-01-12
安徽万博材料科技有限公司
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Problems solved by technology
Due to poor measurement accuracy, it is difficult to stir evenly during mass production, and at the same time, due to uneven dispersion of toner and unstable coloring, the color difference of the decorative surface is serious.
In addition, the facing mortar also has defects such as pan-alkali and cracks.
These defects, especially chromatic aberration, have seriously affected its promotion and application
[0004] At present, when the decorative mortar is used to decorate the exterior wall of the building at home and abroad, the exterior wall primer and latex paint are painted on the surface. Because the latex paint can be accurately toned, the defect of color and color difference is solved, but this makes the construction of the decorative mortar Increased process, increased cost, changed decorative effect, and completely lost the original air permeability and decorative style of decorative mortar
Method used
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Embodiment 1
[0035]Preparation of modified epoxy resin:
[0036](1) Put 15 parts of chitosan solid into the reactor, add 5% mass fraction of acetic acid solution to prepare chitosan acetic acid solution for use;
[0037](2) Add 20 parts of epichlorohydrin to the absolute ethanol, heat to reflux, keep stirring for 10 minutes, then add 20 parts of trimethylolethane and 2 parts of benzoyl peroxide, and continue to reflux and stir for 1 hour; Then add the chitosan acetic acid solution in step 1 and 1 part of sodium pyrophosphate, continue to reflux and stir for 2 hours, filter while hot, and wash off impurities with deionized water and absolute ethanol for the precipitation, and send it to a drying oven at 100-110°C for drying To constant weight, the modified epoxy resin is obtained.
[0038]Preparation of modified attapulgite: add 0.3 parts of tripolyphosphoric acid and 0.3 parts of sodium silicate to 75 parts of deionized water, stir until completely dissolved, then add 20 parts of attapulgite, mechanicall...
Embodiment 2
[0043]Preparation of modified epoxy resin:
[0044](1) Put 15 parts of chitosan solid into the reaction kettle, add 5% mass fraction of acetic acid solution to prepare chitosan acetic acid solution for use;
[0045](2) Add 20 parts of epichlorohydrin to the absolute ethanol, heat to reflux, keep stirring for 10 minutes, then add 20 parts of trimethylolethane and 2 parts of benzoyl peroxide, and continue to reflux and stir for 1 hour; Then add the chitosan acetic acid solution in step 1 and 1 part of sodium pyrophosphate, continue to reflux and stir for 2 hours, filter while hot, and wash off impurities with deionized water and absolute ethanol for the precipitation, and send it to a drying oven at 100-110°C for drying To constant weight, the modified epoxy resin is obtained.
[0046]Preparation of modified attapulgite: add 0.3 parts of tripolyphosphoric acid and 0.3 parts of sodium silicate to 75 parts of deionized water, stir until completely dissolved, then add 20 parts of attapulgite, mec...
Embodiment 3
[0064]Based on Example 1, Comparative Example 1 without modification of epoxy resin was set up. Comparative Example 2 without modification of attapulgite was set.
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Abstract
The invention discloses attapulgite finishing coating mortar and a preparation method thereof and relates to the technical field of building materials. The finishing coating mortar is prepared from acomponent A and a component B; during use, the component A and the component B are mixed according to the ratio; the component A is prepared from the following raw materials: modified epoxy resin, 42.5 white Portland cement, a quartz sand mixture, heavy calcium carbonate powder and nanometer aluminum oxide; and the component B is prepared from the following raw materials: modified attapulgite, alkali resistant acrylic emulsion, texanol, color paste and natural vegetable oil. According to the preparation method disclosed by the invention, by carrying out modifying treatment on the epoxy resin and the attapulgite, weather fastness and compressive strength of the finishing coating mortar are enhanced; and the preparation method has the advantages of low cost, simple process, no pollution andsuitability for industrial production.
Description
Technical field:[0001]The invention relates to the technical field of building materials, in particular to an attapulgite facing mortar and a preparation method thereof.Background technique:[0002]Mortar is a commonly used building material, generally used in masonry and plastering works. Mortar is made by mixing cementitious materials (cement, lime, clay, etc.) and fine aggregate (sand) with water. According to the composition materials, it can be divided into: ①Lime mortar: It is made of lime paste, sand and water according to a certain ratio, and is generally used for masonry and plaster layers with low strength requirements and not subject to moisture; ②Cement mortar: made of Cement, sand and water are made according to a certain ratio, and are generally used for masonry, walls or floors in humid environments or water; ③Mixed mortar: mix cement or lime mortar with appropriate admixtures such as fly ash, It is made of diatomaceous earth to save the amount of cement or lime and imp...
Claims
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Application Information
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