Environment-friendly putty powder additive for building decoration as well as preparation method and application of environment-friendly putty powder additive

Abstract

The invention provides an environment-friendly putty powder additive for building decoration as well as a preparation method and application of the environment-friendly putty powder additive for building decoration, and the additive comprises the following raw materials in parts by weight: 5-7 parts of a glue thickener; 8-9 parts of talcum powder; 6-8 parts of starch ether; 4 to 7 parts of bentonite; 4-6 parts of organic putty rubber powder; and 5-8 parts of nano metal. The putty powder additive is mixed with putty powder for use, the influence of water on putty can be reduced when the putty powder additive is coated on a building wall surface, and the phenomena of foaming, falling, moisture and mildew moisture of the putty caused by the water can be reduced in the use process. Experimental results show that the bubbling, cracking and falling-off rates are all 1t; the mould growth rate in a humid environment is 1t; and 0.03%.

Description

Technical Field

[0001] The invention belongs to the technical field of building decoration materials, and in particular relates to an environmentally friendly putty powder additive for construction, a preparation method and application thereof. Background Art

[0002] As we all know, putty powder is a kind of building decoration material. Its main ingredients are talcum powder and glue. Putty is a base material used for wall repair and leveling, laying a good foundation for the next step of decoration. Putty is divided into two types: interior wall and exterior wall. Exterior wall putty must resist wind and sun, so it has strong adhesiveness, high strength, and a slightly lower environmental index. The comprehensive index of interior wall putty is better, healthy and environmentally friendly, so it is not used for interior walls and exterior walls.

[0003] Interior wall putty is mainly used to modify indoor walls. It is applied on primer or directly on objects to remove uneven defects on the surface of the object being coated. However, due to the instability of indoor environmental factors and the significant marine climate characteristics of Qingdao, the air is humid and the rainfall is abundant, so the putty on the indoor wall is easily invaded by moisture, resulting in bubbling, falling off, cracking and mildew. At this time, the interior wall needs to be repaired again, which consumes manpower and material resources and also affects the quality of indoor wall construction. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide an environmentally friendly putty powder additive for construction, a preparation method and application thereof. The putty powder additive is mixed with putty powder and applied on the wall of a building to reduce the impact of moisture on putty, and can reduce putty bubbling, shedding, moisture and mildew caused by moisture during use.

[0005] The present invention provides an environmentally friendly putty powder additive for building decoration, which comprises the following raw materials in parts by mass:

[0006] 5-7 parts of glue thickener; 8-9 parts of talc; 6-8 parts of starch ether; 4-7 parts of bentonite; 4-6 parts of organic putty powder; 5-8 parts of nano metal.

[0007] In the present invention, the glue thickener is heat-soluble hypromellose, which belongs to non-ionic cellulose mixed ether and is a semi-synthetic, inactive, viscoelastic polymer.

[0008] In the present invention, the particle size of the talc powder is 180-170 meshes; the talc powder is an industrial product, a fine powder without sand, a magnesium silicate mineral talc family talc, the main component of which is hydrated magnesium silicate, which is crushed, treated with hydrochloric acid, washed with water, and dried.

[0009] The particle size of the bentonite is 170-180 meshes. The bentonite is a non-metallic mineral with montmorillonite as the main mineral component. The montmorillonite structure is a 2:1 type crystal structure composed of two silicon-oxygen tetrahedra sandwiching a layer of aluminum-oxygen octahedron. Due to the layered structure formed by the montmorillonite unit cell, there are certain cations, such as Cu, Mg, Na, K, etc., and these cations are very unstable in their interaction with the montmorillonite unit cell, and are easily exchanged by other cations, and have good ion exchangeability.

[0010] In the present invention, the nanometal is selected from one or more of nanosilver, nanocopper and nanozinc. Preferably, the nanometal is a mixture of nanosilver and nanocopper in a mass ratio of (2.6-3.7):(4.5-5.3). In a specific embodiment, the mass ratio of nanosilver to nanocopper in the mixture of nanosilver and nanocopper is 2.6:5.1, 2.8:4.7, 3.2:5.1, 3.5:5.2, 3.4:4.8, 2.9:4.9 or 3.5:5.2.

[0011] In the present invention, the starch ether is a general term for a class of modified starches containing ether bonds in the molecules, also known as etherified starch, mainly including cationic starch, anionic starch, hydroxypropyl starch phosphate, hydroxypropyl glycerol distarch, hydroxyalkyl starch, etc., all of which have excellent water solubility, adhesion, swelling, flowability, covering, desizing, cavity application, separation and other functions.

[0012] In a specific embodiment, the environmentally friendly putty powder additive for building decoration includes:

[0013] 6 parts of hot-soluble hypromellose, 3 parts of bentonite, 5 parts of starch ether, 9 parts of talc, 6 parts of nanometal composed of nanosilver and nanocopper in a mass ratio of 2.6:5.1, and 5 parts of organic putty powder;

[0014] Or 7 parts of hot-soluble hypromellose, 4 parts of bentonite, 6.5 parts of starch ether, 9.5 parts of talc, 7 parts of nanometal composed of nanosilver and nanocopper in a mass ratio of 2.8:4.7, and 6 parts of organic putty powder;

[0015] Or 8 parts of hot-soluble hypromellose, 7 parts of bentonite, 8 parts of starch ether, 10 parts of talc, 6 parts of nanometal composed of nanosilver and nanocopper in a mass ratio of 3.2:5.1, and 8 parts of organic putty powder;

[0016] Or 7 parts of hot-soluble hypromellose, 5 parts of bentonite, 6.5 parts of starch ether, 9 parts of talc, 7.5 parts of nanometal composed of nanosilver and nanocopper in a mass ratio of 3.5:5.2, and 6 parts of organic putty powder;

[0017] Or 7 parts of hot-soluble hypromellose, 4.5 parts of bentonite, 6.5 parts of starch ether, 9.5 parts of talc, 7.5 parts of nanometal composed of nanosilver and nanocopper in a mass ratio of 3.4:4.8, and 6 parts of organic putty powder;

[0018] Or 7 parts of hot-soluble hypromellose, 4.5 parts of bentonite, 6.5 parts of starch ether, 9.5 parts of talc, 7.5 parts of nanometal composed of nanosilver and nanocopper in a mass ratio of 2.9:4.9, and 6 parts of organic putty powder;

[0019] Or 7 parts of hot-soluble hydroxypropyl methylcellulose, 4.5 parts of bentonite, 6 parts of starch ether, 9.5 parts of talc, 7.5 parts of nano metal composed of nano silver and nano copper in a mass ratio of 3.5:5.2, and 6 parts of organic putty powder.

[0020] The present invention provides a method for preparing the environmentally friendly putty powder additive for building decoration described in the above technical solution, comprising the following steps:

[0021] Mix 5-7 parts of glue thickener, 8-9 parts of talcum powder, 6-8 parts of starch ether, 4-7 parts of bentonite, 4-6 parts of organic putty powder and 5-8 parts of nano metal to obtain an environmentally friendly putty powder additive.

[0022] The present invention provides an interior wall putty, comprising white powder, limestone and an environmentally friendly putty powder additive for construction in a mass ratio of (5.5-6.5):(2.8-3.3):1;

[0023] The environmentally friendly putty powder additive is the environmentally friendly putty powder additive for building decoration described in the above technical solution or the environmentally friendly putty powder additive for building decoration prepared by the preparation method described in the above technical solution. The main component of the white powder is calcium carbonate. The organic putty powder is Y-type organic putty powder.

[0024] In a specific embodiment of the present invention, the mass ratio of the white powder, limestone and the environmentally friendly putty powder additive for construction is 6:3:1.

[0025] The present invention provides an environmentally friendly putty powder additive for building decoration, which includes the following raw materials by weight: 5-7 parts of glue thickener; 8-9 parts of talcum powder; 6-8 parts of starch ether; 4-7 parts of bentonite; 4-6 parts of organic putty glue powder; 5-8 parts of nano metal. The putty powder additive is mixed with putty powder and applied on the wall of the building to reduce the influence of moisture on putty, and can reduce the bubbling, shedding, moisture and mildew of putty caused by moisture during use. Experimental results show that the bubbling, cracking and shedding rates are all less than 0.03%, and the mold growth rate in a humid environment is all less than 0.03%. DETAILED DESCRIPTION

[0026] In order to further illustrate the present invention, an environmentally friendly putty powder additive for construction provided by the present invention, a preparation method thereof and an application thereof are described in detail below in conjunction with embodiments, but they should not be construed as limiting the scope of protection of the present invention.

[0027] Example 1

[0028] 6 parts of hot-soluble hydroxypropyl methylcellulose, 3 parts of bentonite, 5 parts of starch ether, 9 parts of talc, 6 parts of nanometal composed of nanosilver and nanocopper in a mass ratio of 2.6:5.1 and 5 parts of organic putty powder Y are uniformly mixed to obtain an environmentally friendly putty powder additive.

[0029] According to the ratio of 6:3:1, respectively weigh white powder, limestone and the above-mentioned additives, and dissolve the above-mentioned additives in hot water. The amount of hot water is half of the total mass of white powder, limestone and additives, so as to dissolve the hot-soluble hydroxypropyl methylcellulose. The dissolved additive solution is cooled to 75°C, added to the mixture of limestone and white powder, and stirred evenly. The temperature is gradually lowered during the process, and the hot-soluble hydroxypropyl methylcellulose shows adhesion, so as to obtain putty for wall coating, and the wall is coated with a first coat of 3mm thick putty. When the first coat of putty is dry, a second coat of 3mm thick putty is applied.

[0030] Example 2

[0031] 7 parts of hot-soluble hydroxypropyl methylcellulose, 4 parts of bentonite, 6.5 parts of starch ether, 9.5 parts of talc, 7 parts of nanometal composed of nanosilver and nanocopper in a mass ratio of 2.8:4.7 and 6 parts of organic putty powder Y are uniformly mixed to obtain an environmentally friendly putty powder additive.

[0032] The above-mentioned tartar powder, limestone and additives are weighed respectively in a ratio of 6:3:1, and the above-mentioned additives are dissolved in hot water. The amount of hot water is half of the total mass of the tartar powder, limestone and additives, so that the hot-soluble hydroxypropyl methylcellulose is completely dissolved. The dissolved additive solution is cooled to 75°C, added to the mixture of limestone and tartar powder, and stirred evenly. The temperature is gradually lowered during the process, and the hot-soluble hydroxypropyl methylcellulose shows adhesion, so that putty for wall coating is obtained, and the wall is coated with a first coat of putty. When the first coat of putty is dry, a second coat of putty is applied.

[0033] Example 3

[0034] 8 parts of hot-soluble hydroxypropyl methylcellulose, 7 parts of bentonite, 8 parts of starch ether, 10 parts of talc, 6 parts of nanometal consisting of nanosilver and nanocopper in a mass ratio of 3.2:5.1 and 8 parts of organic putty powder Y are uniformly mixed to obtain an environmentally friendly putty powder additive.

[0035] The above-mentioned tartar powder, limestone and additives are weighed respectively in a ratio of 6:3:1, and the above-mentioned additives are dissolved in hot water. The amount of hot water is half of the total mass of the tartar powder, limestone and additives, so that the hydroxypropyl methylcellulose is completely dissolved. The dissolved additive solution is cooled to 75°C, added to the mixture of limestone and tartar powder, and stirred evenly. The temperature is gradually lowered during the process, and the hot-soluble hydroxypropyl methylcellulose shows adhesion, so that putty for wall coating is obtained, and the wall is coated with a first coat of putty. When the first coat of putty is dry, a second coat of putty is applied.

[0036] Example 4

[0037] 7 parts of hot-soluble hydroxypropyl methylcellulose, 5 parts of bentonite, 6.5 parts of starch ether, 9 parts of talc, 7.5 parts of nanometal composed of nanosilver and nanocopper in a mass ratio of 3.5:5.2 and 6 parts of organic putty powder Y are uniformly mixed to obtain an environmentally friendly putty powder additive.

[0038] The above-mentioned tartar powder, limestone and additives are weighed respectively in a ratio of 6:3:1, and the above-mentioned additives are dissolved in hot water. The amount of hot water is half of the total mass of the tartar powder, limestone and additives, so that the hot-soluble hydroxypropyl methylcellulose is completely dissolved. The dissolved additive solution is cooled to 75°C, added to the mixture of limestone and tartar powder, and stirred evenly. The temperature is gradually lowered during the process, and the hot-soluble hydroxypropyl methylcellulose shows adhesion, so that putty for wall coating is obtained, and the wall is coated with a first coat of putty. When the first coat of putty is dry, a second coat of putty is applied.

[0039] Example 5

[0040] 7 parts of hot-soluble hydroxypropyl methylcellulose, 4.5 parts of bentonite, 6.5 parts of starch ether, 9.5 parts of talc, 7.5 parts of nanometal composed of nanosilver and nanocopper in a mass ratio of 3.4:4.8 and 6 parts of organic putty powder Y are uniformly mixed to obtain an environmentally friendly putty powder additive.

[0041] The above-mentioned tartar powder, limestone and additives are weighed respectively in a ratio of 6:3:1, and the above-mentioned additives are dissolved in hot water. The amount of hot water is half of the total mass of the tartar powder, limestone and additives, so that the hot-soluble hydroxypropyl methylcellulose is completely dissolved. The dissolved additive solution is cooled to about 75°C, added to the mixture of limestone and tartar powder, and stirred evenly. The temperature is gradually lowered during the process, and the hot-soluble hydroxypropyl methylcellulose shows adhesion, so that putty for wall coating is obtained, and the wall is coated with a first coat of putty. When the first coat of putty is dry, a second coat of putty is applied.

[0042] Example 6

[0043] 7 parts of hot-soluble hydroxypropyl methylcellulose, 4.5 parts of bentonite, 6.5 parts of starch ether, 9.5 parts of talc, 7.5 parts of nanometal composed of nanosilver and nanocopper in a mass ratio of 2.9:4.9 and 6 parts of organic putty powder Y are uniformly mixed to obtain an environmentally friendly putty powder additive.

[0044] The above-mentioned tartar powder, limestone and additives are weighed respectively in a ratio of 6:3:1, and the above-mentioned additives are dissolved in hot water. The amount of hot water is half of the total mass of the tartar powder, limestone and additives, so that the hot-soluble hydroxypropyl methylcellulose is completely dissolved. The dissolved additive solution is cooled to 75°C, added to the mixture of limestone and tartar powder, and stirred evenly. The temperature is gradually lowered during the process, and the hot-soluble hydroxypropyl methylcellulose shows adhesion, so that putty for wall coating is obtained, and the wall is coated with a first coat of putty. When the first coat of putty is dry, a second coat of putty is applied.

[0045] Example 7

[0046] 7 parts of hot-soluble hydroxypropyl methylcellulose, 4.5 parts of bentonite, 6 parts of starch ether, 9.5 parts of talc, 7.5 parts of nanometal composed of nanosilver and nanocopper in a mass ratio of 3.5:5.2 and 6 parts of organic putty powder Y are uniformly mixed to obtain an environmentally friendly putty powder additive.

[0047] The above-mentioned tartar powder, limestone and additives are weighed respectively in a ratio of 6:3:1, and the above-mentioned additives are dissolved in hot water. The amount of hot water is half of the total mass of the tartar powder, limestone and additives, so that the hot-soluble hydroxypropyl methylcellulose is completely dissolved. The dissolved additive solution is cooled to 75°C, added to the mixture of limestone and tartar powder, and stirred evenly. The temperature is gradually lowered during the process, and the hot-soluble hydroxypropyl methylcellulose shows adhesion, so that putty for wall coating is obtained, and the wall is coated with a first coat of putty. When the first coat of putty is dry, a second coat of putty is applied.

[0048] Comparative Example 1

[0049] 7 parts of hot-soluble hydroxypropyl methylcellulose, 4.5 parts of bentonite, 6.5 parts of starch ether, 9.5 parts of talcum powder and 6 parts of organic putty powder Y are uniformly mixed to obtain an environmentally friendly putty powder additive.

[0050] The above-mentioned tartar powder, limestone and additives are weighed respectively in a ratio of 6:3:1, and the above-mentioned additives are dissolved in hot water. The amount of hot water is half of the total mass of the tartar powder, limestone and additives, so that the hot-soluble hydroxypropyl methylcellulose is completely dissolved. The dissolved additive solution is cooled to 75°C, added to the mixture of limestone and tartar powder, and stirred evenly. The temperature is gradually lowered during the process, and the hot-soluble hydroxypropyl methylcellulose shows adhesion. Putty for wall coating is obtained, and the wall is coated with a first coat of 3mm thick putty. When the first coat of putty is dry, a second coat of 3mm thick putty is applied.

[0051] The present invention tests the putty walls painted in the embodiment and the comparative example, and the results are shown in Table 1:

[0052] Table 1 Performance test results of putty wall surfaces of embodiments and comparative examples

[0053]

[0054] It can be seen from the above embodiments that the present invention provides an environmentally friendly putty powder additive for building decoration, which includes the following raw materials by mass: 5-7 parts of glue thickener; 8-9 parts of talcum powder; 6-8 parts of starch ether; 4-7 parts of bentonite; 4-6 parts of organic putty glue powder; 5-8 parts of nano metal. The putty powder additive is mixed with putty powder and applied on the wall of the building to reduce the effect of moisture on putty, and can reduce the bubbling, shedding, moisture and mildew of putty caused by moisture during use. The experimental results show that the bubbling, cracking and shedding rates are all <0.03%, and the mold growth rate in a humid environment is all <0.03%.

[0055] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An environmentally friendly putty powder additive for building decoration, comprising the following raw materials in parts by weight: 5-7 parts of glue thickener; 8-9 parts of talc; 6-8 parts of starch ether; 4-7 parts of bentonite; 4-6 parts of organic putty powder; 5-8 parts of nano metal.

2. The environmentally friendly putty powder additive for building decoration according to claim 1, characterized in that: The glue thickener is hot-soluble hydroxypropyl methylcellulose.

3. The environmentally friendly putty powder additive for building decoration according to claim 1, characterized in that: The particle size of the talcum powder is 180-170 mesh; The particle size of the bentonite is 170-180 meshes.

4. The environmentally friendly putty powder additive for building decoration according to claim 1, characterized in that: The nano metal is selected from one or more of nano silver, nano copper and nano zinc.

5. The environmentally friendly putty powder additive for building decoration according to claim 1, characterized in that: The nano metal is a mixture of nano silver and nano copper in a mass ratio of (2.6-3.7):(4.5-5.3).

6. A method for preparing the environmentally friendly putty powder additive for building decoration according to any one of claims 1 to 5, comprising the following steps: Mix 5-7 parts of glue thickener, 8-9 parts of talcum powder, 6-8 parts of starch ether, 4-7 parts of bentonite, 4-6 parts of organic putty powder and 5-8 parts of nano metal to obtain an environmentally friendly putty powder additive.

7. An interior wall putty, comprising white powder, limestone and an environmentally friendly putty powder additive for construction in a mass ratio of (5.5-6.5):(2.8-3.3):1; The environmentally friendly putty powder additive is the environmentally friendly putty powder additive for building decoration described in any one of claims 1 to 5 or the environmentally friendly putty powder additive for building decoration prepared by the preparation method described in claim 6.

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