Water-based primer for plastic track and preparation method thereof
阅读说明：本技术 一种用于塑胶跑道的水性底漆及其制备方法 (Water-based primer for plastic track and preparation method thereof ) 是由 孟奎 孟运 张强国 王俞江 毛现东 于 2020-04-03 设计创作，主要内容包括：本发明涉及一种用于塑胶跑道的水性底漆及其制备方法,属于塑胶跑道底漆技术领域,水性底漆的原料包括水性底漆乳液、水、碳酸钙、钛白粉、羟乙基纤维素、葡萄糖酸钠、成膜助剂、分散剂、消泡剂、流平剂、抗裂增韧剂,抗裂增韧剂的原料包括水泥基渗透结晶母料、氧化镁-三氧化二铝复合粉、煤矸石粉、铝矾土粉、滑石粉,且原料通过混合,得到水性底漆。该用于塑胶跑道的水性底漆,通过原料之间的协同作用,使水性底漆不仅具有环保的优点,而且还具有高渗透性的优点,同时漆膜和混凝土基层的结合强度高,漆膜还具有稳定性好、防水性好的优点。(The invention relates to a water-based primer for a plastic runway and a preparation method thereof, belonging to the technical field of plastic runway primers. The water-based primer for the plastic track has the advantages of environmental protection and high permeability through the synergistic effect of the raw materials, and meanwhile, the paint film has high bonding strength with a concrete base layer, and has the advantages of good stability and good waterproofness.)
1. A water-based primer for a plastic track is characterized in that: the anti-cracking toughening agent comprises, by weight, 30-45 parts of water-based primer emulsion, 16-25 parts of water, 18-32 parts of calcium carbonate, 6-15 parts of titanium dioxide, 7-14 parts of hydroxyethyl cellulose, 2-5 parts of sodium gluconate, 2-5 parts of a film forming auxiliary agent, 0.2-1 part of a dispersing agent, 1-1.5 parts of an antifoaming agent, 0.3-0.7 part of a leveling agent and 2-3 parts of an anti-cracking toughening agent, wherein the raw materials of the anti-cracking toughening agent comprise 30-50 parts of a cement-based permeable crystallization master batch, 3-7 parts of magnesium oxide-aluminum oxide composite powder, 14-26 parts of coal gangue powder, 6-15 parts of bauxite powder and 6-15 parts of talcum powder.
2. The water-based primer for plastic runways according to claim 1, characterized in that: the anti-cracking toughening agent comprises, by weight, 35-40 parts of water-based primer emulsion, 19-23 parts of water, 23-27 parts of calcium carbonate, 8-10 parts of titanium dioxide, 9-12 parts of hydroxyethyl cellulose, 3-4 parts of sodium gluconate, 3-4 parts of a film forming auxiliary agent, 0.5-0.7 part of a dispersing agent, 1.2-1.4 parts of an antifoaming agent, 0.4-0.6 part of a leveling agent and 2.3-2.7 parts of an anti-cracking toughening agent, wherein the raw materials of the anti-cracking toughening agent comprise 35-45 parts of a cement-based permeable crystallization master batch, 4-6 parts of magnesium oxide-aluminum oxide composite powder, 18-23 parts of coal gangue powder, 9-11 parts of bauxite powder and 9-11 parts of talcum powder.
3. The water-based primer for plastic runways according to claim 1, characterized in that: the film forming assistant is one or more of dodecyl alcohol ester, propylene glycol methyl ether acetate and propylene glycol butyl ether.
4. The water-based primer for plastic runways according to claim 1, characterized in that: the water-based primer emulsion is styrene-acrylic emulsion.
5. The water-based primer for plastic runways according to claim 1, characterized in that: the dispersant is a polyacrylic ammonium salt dispersant.
6. The water-based primer for plastic runways according to claim 1, characterized in that: the defoaming agent is an organic silicon defoaming agent.
7. The water-based primer for plastic runways according to claim 1, characterized in that: the leveling agent is a polyurethane leveling agent.
8. The water-based primer for plastic runways according to claim 1, characterized in that: the weight ratio of the magnesium oxide to the aluminum oxide in the magnesium oxide-aluminum oxide composite powder is (3-4) to 1.
9. A method of preparing the water-based primer for plastic racetracks according to any one of claims 1 to 8, characterized in that: the method comprises the following steps:
uniformly mixing a cement-based permeable crystallization master batch, magnesium oxide-aluminum oxide composite powder, coal gangue powder, bauxite powder and talcum powder to obtain an anti-cracking toughening agent;
dividing the defoaming agent into two parts, namely a defoaming agent A and a defoaming agent B, wherein the weight ratio of the defoaming agent A to the defoaming agent B is (4-5): 1;
dividing water into two parts, namely water A and water B, wherein the weight ratio of the water A to the water B is (1-2) to 1;
adding hydroxyethyl cellulose, sodium gluconate, a dispersing agent, water A and a defoaming agent A into the water-based primer emulsion, stirring for 20-30min, heating to 30-40 ℃, continuing to stir for 5-10min, then adding calcium carbonate and titanium dioxide, stirring for 20-30min under heat preservation, then adding an anti-cracking toughening agent, stirring for 10-20min under heat preservation, then adding a film-forming assistant, a leveling agent, water B and a defoaming agent B, stirring for 20-30min under heat preservation, grinding, filtering and cooling to room temperature to obtain the water-based primer.
10. The method for preparing the water-based primer for the plastic track according to claim 1, wherein the method comprises the following steps: the weight ratio of the defoaming agent A to the defoaming agent B is 4.5: 1; the weight ratio of the water A to the water B is 1.5: 1.
Technical Field
The invention relates to the technical field of plastic runway primer, in particular to a water-based primer for a plastic runway and a preparation method thereof.
Background
The plastic track is also named as all-weather track for track and field sports and is made of polyurethane prepolymer, mixed polyether, waste tyre rubber, EPDM rubber grain or PU grain, pigment, assistant and stuffing. The plastic track has the characteristics of high flatness, high compressive strength, proper hardness and elasticity and stable physical property, is beneficial to the exertion of the speed and the technology of athletes, effectively improves the sports performance, reduces the tumble injury rate, and is an internationally recognized best all-weather outdoor sports ground floor material.
At present, the patent application publication No. CN110655856A, published as 2020.01.07, discloses a plastic runway primer and a preparation method thereof, wherein the plastic runway primer comprises the following components in parts by weight: 40-50 parts of polyurethane, 20-30 parts of organic silicon resin, 0.1-0.2 part of dispersant, 0-0.5 part of defoaming agent and 20-30 parts of filler. When the primer is used, the primer is coated on the surface of a concrete base layer, raw materials permeate into pores of the concrete base layer to form a paint film, the bonding strength between the primer and the concrete base layer is increased, and the paint film has a waterproof effect.
Disclosure of Invention
The invention aims to provide the water-based primer for the plastic track, which has the advantages of environmental protection and high permeability through the synergistic effect of the raw materials, and meanwhile, the paint film has high bonding strength with the concrete base layer, and has the advantages of good stability and good waterproofness.
The above object of the present invention is achieved by the following technical solutions:
the water-based primer for the plastic track comprises, by weight, 30-45 parts of water-based primer emulsion, 16-25 parts of water, 18-32 parts of calcium carbonate, 6-15 parts of titanium dioxide, 7-14 parts of hydroxyethyl cellulose, 2-5 parts of sodium gluconate, 2-5 parts of a film forming auxiliary agent, 0.2-1 part of a dispersing agent, 1-1.5 parts of an antifoaming agent, 0.3-0.7 part of a leveling agent and 2-3 parts of an anti-cracking toughening agent, wherein the anti-cracking toughening agent comprises, by weight, 30-50 parts of a cement-based permeable crystallization master batch, 3-7 parts of magnesium oxide-aluminum oxide composite powder, 14-26 parts of coal gangue powder, 6-15 parts of bauxite powder and 6-15 parts of talcum powder.
By adopting the technical scheme, the anti-cracking toughening agent is added into the raw material of the water-based primer, when the water-based primer is coated on the surface of the concrete base layer, the raw material permeates into pores of the concrete base layer and generates chemical reaction with unhydrated cement particles in the concrete to form insoluble needle crystals, and the needle crystals fill capillary pores in the concrete base layer and block passages of water and water-soluble pollutants. The water-based primer disclosed by the invention has the advantages that through the synergistic effect of the raw materials, the water-based primer has high permeability, the bonding strength of a paint film and a concrete base layer is increased, and the paint film has good stability and waterproofness.
Preferably, the raw materials comprise, by weight, 35-40 parts of water-based primer emulsion, 19-23 parts of water, 23-27 parts of calcium carbonate, 8-10 parts of titanium dioxide, 9-12 parts of hydroxyethyl cellulose, 3-4 parts of sodium gluconate, 3-4 parts of a film forming aid, 0.5-0.7 part of a dispersing agent, 1.2-1.4 parts of a defoaming agent, 0.4-0.6 part of a leveling agent and 2.3-2.7 parts of an anti-cracking toughening agent, wherein the raw materials of the anti-cracking toughening agent comprise 35-45 parts of a cement-based permeable crystallization master batch, 4-6 parts of magnesium oxide-aluminum oxide composite powder, 18-23 parts of coal gangue powder, 9-11 parts of bauxite powder and 9-11 parts of talcum powder.
By adopting the technical scheme, the raw material ratio of the water-based primer is optimized, the permeability of the water-based primer is further improved, the bonding strength of the paint film and the concrete base layer is further improved, and the paint film keeps good stability and waterproofness.
More preferably, the film forming auxiliary agent is one or more of dodecyl alcohol ester, propylene glycol methyl ether acetate and propylene glycol butyl ether.
By adopting the technical scheme, the film-forming auxiliary agent is optimized, so that the film forming of the water-based primer is facilitated, a paint film is formed, the drying time of the water-based primer is reduced, and the construction of the water-based primer is facilitated.
More preferably, the water-based primer emulsion is a styrene-acrylic emulsion.
More preferably, the dispersant is a polyammonium salt dispersant.
More preferably, the defoamer is a silicone defoamer.
More preferably, the leveling agent is a polyurethane leveling agent.
By adopting the technical scheme, the water-based primer emulsion, the dispersing agent, the defoaming agent and the flatting agent are optimized, the bonding strength of the paint film and the concrete base layer is improved, and the paint film keeps good stability and waterproofness.
More preferably, the weight ratio of the magnesium oxide to the aluminum oxide in the magnesium oxide-aluminum oxide composite powder is (3-4): 1.
By adopting the technical scheme, the proportion of the magnesium oxide and the aluminum oxide in the magnesium oxide-aluminum oxide composite powder is optimized, and the synergistic effect of the magnesium oxide and the aluminum oxide is utilized, so that the bonding strength of a paint film and a concrete base layer is improved, and the paint film has the advantages of good stability and good waterproofness.
The second purpose of the present invention is to provide a preparation method of a water-based primer for a plastic track, which has the advantages of easy control and good uniformity and stability of the water-based primer.
The second aim of the invention is realized by the following technical scheme:
a preparation method of a water-based primer for a plastic track comprises the following steps:
uniformly mixing a cement-based permeable crystallization master batch, magnesium oxide-aluminum oxide composite powder, coal gangue powder, bauxite powder and talcum powder to obtain an anti-cracking toughening agent;
dividing the defoaming agent into two parts, namely a defoaming agent A and a defoaming agent B, wherein the weight ratio of the defoaming agent A to the defoaming agent B is (4-5): 1; dividing water into two parts, namely water A and water B, wherein the weight ratio of the water A to the water B is (1-2) to 1;
adding hydroxyethyl cellulose, sodium gluconate, a dispersing agent, water A and a defoaming agent A into the water-based primer emulsion, stirring for 20-30min, heating to 30-40 ℃, continuing to stir for 5-10min, then adding calcium carbonate and titanium dioxide, stirring for 20-30min under heat preservation, then adding an anti-cracking toughening agent, stirring for 10-20min under heat preservation, then adding a film-forming assistant, a leveling agent, water B and a defoaming agent B, stirring for 20-30min under heat preservation, grinding, filtering and cooling to room temperature to obtain the water-based primer.
More preferably, the weight ratio of the defoaming agent A to the defoaming agent B is 4.5: 1; the weight ratio of the water A to the water B is 1.5: 1.
Through adopting above-mentioned technical scheme, divide into two with the defoaming agent, divide into two with water, the mixing of the raw materials of not only being convenient for reduces the production of bubble moreover, improves the stability that the raw materials stored, adopts the stirring of heating simultaneously to handle, increases the brownian motion of raw materials, makes the mixing of raw materials more even to make water based priming paint have the advantage of good homogeneity and stability.
In conclusion, the invention has the following beneficial effects:
firstly, the water-based primer for the plastic track has the advantages of environmental protection, high permeability, high bonding strength between a paint film and a concrete base layer, good stability and good waterproofness through the synergistic effect of the raw materials.
Secondly, adding an anti-cracking toughening agent into the raw materials of the water-based primer, and enabling the anti-cracking toughening agent to penetrate into the pores of the concrete base layer through the synergistic action among the cement-based infiltration crystallization master batch, the magnesium oxide-aluminum oxide composite powder, the coal gangue powder, the bauxite powder and the talcum powder, enabling active compounds penetrating into the pores to generate an interactive reaction with unhydrated cement particles in the concrete base layer to generate water-insoluble needle crystals, filling capillary pores in the concrete base layer with the needle crystals and blocking channels of water and water-soluble pollutants, enabling the paint film to be tightly combined with the concrete base layer through the synergistic action among the raw materials, increasing the combination strength of the paint film and the concrete base layer, reducing the conditions of loosening, hollowing and foaming of the paint film caused by underground water vapor in the later stage of the paint film, and further increasing the compactness and water resistance of the paint film.
Thirdly, the preparation method of the water-based primer for the plastic track, disclosed by the invention, divides the defoaming agent into two parts, divides the water into two parts, is convenient for mixing the raw materials, reduces the generation of bubbles, improves the storage stability of the raw materials, and simultaneously adopts heating and stirring treatment to increase the Brownian motion of the raw materials, so that the raw materials are mixed more uniformly, and the water-based primer has the advantages of good uniformity and stability.
Detailed Description
The present invention will be described in further detail with reference to examples.
Table 1 examples of the content (unit: parts by weight) of each raw material of the crack resistance toughening agent
Examples
A
II
III
Fourthly
Five of them
Cement-based infiltration crystallization master batch
30
35
40
45
50
Magnesium oxide-aluminum oxide composite powder
7
6
5
4
3
Coal gangue powder
14
23
20
18
26
Aluminumite powder
15
11
10
9
6
Talcum powder
15
11
10
9
6
Table 2 examples the content (unit: 0.1Kg) of each raw material of the water based primer
Examples
1
2
3
4
5
6
7
8
9
Aqueous primer emulsion
30
35
38
40
45
38
38
38
38
Water (W)
25
23
21
19
16
21
21
21
21
Aluminum oxide
32
23
25
27
18
25
25
25
25
Titanium white powder
6
8
9.2
10
15
9.2
9.2
9.2
9.2
Hydroxyethyl cellulose
7
12
11
9
14
11
11
11
11
Sodium gluconate
2
3
3.6
4
5
3.6
3.6
3.6
3.6
Film forming aid
5
4
3.2
3
2
3.2
3.2
3.2
3.2
Dispersing agent
0.2
0.7
0.6
0.5
1
0.6
0.6
0.6
0.6
Defoaming agent
1.5
1.2
1.3
1.4
1
1.3
1.3
1.3
1.3
Leveling agent
0.7
0.6
0.5
0.4
0.3
0.5
0.5
0.5
0.5
Anti-cracking toughening agent I
0
0
0
0
0
2.5
0
0
0
Anti-cracking toughening agent II
0
0
0
0
0
0
2.5
0
0
Anti-cracking toughening agent III
3
2.3
2.5
2.7
2
0
0
0
0
Anti-cracking toughening agent IV
0
0
0
0
0
0
0
2.5
0
Anti-cracking toughening agent five
0
0
0
0
0
0
0
0
2.5
- 上一篇：一种医用注射器针头装配设备
- 下一篇：一种氯醋树脂复合材料及其制备方法与应用