CN114479564B

CN114479564B - Anticorrosive and antiskid resin coating powder and preparation method and application thereof

Info

Publication number: CN114479564B
Application number: CN202111634009.4A
Authority: CN
Inventors: 周永良
Original assignee: Yuyao Yayu Industry And Trade Co ltd
Current assignee: Yuyao Yayu Industry And Trade Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2023-01-06
Anticipated expiration: 2041-12-29
Also published as: CN114479564A

Abstract

The invention relates to the technical field of building materials, in particular to anticorrosive and antiskid resin coating powder and a preparation method thereof. An anticorrosion antiskid resin coating powder is prepared from the following raw materials in parts by weight: 25-35 parts of sulfonic acid graft modified epoxy resin powder, 25-35 parts of polyester resin powder, 8-13 parts of amido ethoxy quaternary ammonium salt, 35-45 parts of rubber particles and 10-15 parts of an anticorrosive additive. The preparation method of the anti-corrosion and anti-slip resin coating powder comprises the following steps: (1) Grinding and mixing sulfonic acid graft modified epoxy resin powder, polyester resin powder, amido ethoxy quaternary ammonium salt and an anticorrosive additive to obtain a mixed raw material A; (2) And mixing the mixed raw material A with rubber particles to obtain the anti-corrosion and anti-slip resin coating powder.

Description

Anticorrosive and antiskid resin coating powder and preparation method and application thereof

Technical Field

The application relates to the technical field of building materials, in particular to anticorrosive and antiskid resin coating powder and a preparation method thereof.

Background

With the development of social humanity, industrial terraces are laid on most underground garages, factory buildings, markets, hospitals, laboratories and bridges in China, so that the requirements of dust prevention, corrosion resistance and the like are met. Among them, epoxy floor paint has high physical and mechanical properties, excellent chemical resistance, and various colors, so it is widely used.

However, the epoxy floor paint also has the characteristics of flatness and smoothness, so when accumulated water exists on the surface of the epoxy floor paint, the accumulated water can further reduce the friction force between the epoxy floor paint and soles of people, and the defect that people slip easily exists when people walk on the epoxy floor paint.

Disclosure of Invention

In order to reduce the possibility that people easily slip, the application provides the anti-corrosion and anti-slip resin coating powder and the preparation method and application thereof.

In a first aspect, the application provides an anticorrosive and anti-slip resin coating powder, which adopts the following technical scheme:

an anticorrosion antiskid resin coating powder is prepared from the following raw materials in parts by weight: 25-35 parts of sulfonic acid graft modified epoxy resin powder, 25-35 parts of polyester resin powder, 8-13 parts of amido ethoxy quaternary ammonium salt, 35-45 parts of rubber particles and 10-15 parts of an anticorrosive additive.

By adopting the technical scheme, when the anti-corrosion and anti-skid resin coating powder is prepared with water, polymer molecular chains of the sulfonic acid graft modified epoxy resin powder are converged into particles, and sulfonic acid groups are distributed on the surfaces of the particles, so that the sulfonic acid graft modified epoxy resin powder is promoted to be dispersed in the water. The organic amine in the amido ethoxy quaternary ammonium salt promotes the polyester resin powder to disperse and emulsify, and finally forms stable resin emulsion, thereby preparing and forming the liquid coating.

And because the polyester resin powder has an excellent cement bonding effect, after the liquid coating is cured, the polyester resin powder can be fixedly bonded on the cement ground in cooperation with the sulfonic acid graft modified epoxy resin powder, so that the adhesive force of the anticorrosion and antiskid resin coating powder is effectively improved.

In addition, after the liquid coating is cured to form the coating, the rubber particles can be protruded on the surface of the coating, so that a plurality of protruded friction points are formed. When people walk on the coating, the soles of people can extrude the raised friction points, so that the friction force between the coating and the soles of people is increased, and the possibility of slipping of people is effectively reduced.

Compared with other large solid particles, the rubber particles have excellent elasticity, so that when people fall down accidentally, the rubber particles can buffer the human body and reduce the secondary damage of the particles to the human body.

Preferably, the rubber particles are nitrile rubber.

By adopting the technical scheme, the sulfonic acid grafted modified epoxy resin powder contains a large amount of polar C-O bonds, and the amido ethoxy quaternary ammonium salt contains a large amount of C-N bonds, so when the rubber particles adopt the nitrile rubber, the C-O bonds and the C-N bonds can form good interface acting force with the nitrile rubber, and the rubber particles can be stably bonded in the coating.

And if the rubber particles are made of other rubbers such as fluororubber, the adhesiveness between the other rubbers and the epoxy resin-polyester resin system is poor, so that the rubbers can be easily separated when people walk on the coating, the antiskid function is difficult to play, and the possibility of slipping of people is further increased due to rolling friction.

Preferably, the rubber particles are of an elongated structure.

Through adopting above-mentioned technical scheme, when the rubber granule breaks away from in the coating inside, for the spherical granule of rubber granule, adopt rectangular structure can effectively reduce the possibility that the rubber granule takes place to roll to when people walk on the coating, further reduce people because the rolling of rubber granule and the possibility that appears slipping.

Preferably, the rubber particles are of a polygonal prism structure.

Through adopting above-mentioned technical scheme, when the rubber granule breaks away from in the coating inside, adopt the polygon prism structure can effectively reduce the possibility that the rubber granule takes place to roll for the rubber granule adopts cylindric structure to when people walk on the coating, further reduce people because the rolling of rubber granule and the possibility that appears slipping.

Preferably, the rubber particles have a triangular prism structure.

Through adopting above-mentioned technical scheme, for other polygon prism structures such as the rubber granule is the quadrangular prism, the triangular prism structure must form stable top point of friction point and stable below supporting plane after stable the placing to when effectively reducing the rubber granule and taking place the rolling possibility, can also increase the pressure of rubber granule and people's sole through point of friction point increase, and then increase the frictional force of rubber granule and people's sole, further reduce the possibility that people appear slipping.

Preferably, the antiseptic additive is a mixture of metal zinc, sodium alginate, bamboo charcoal powder and an organosilicon quaternary ammonium salt type antibacterial agent.

By adopting the technical scheme, because the metal zinc, the bamboo charcoal powder and the organic silicon quaternary ammonium salt antibacterial agent have excellent antibacterial performance, after the liquid coating is solidified to form the coating, the anticorrosive additive can effectively reduce harmful bacterial colonies on the coating, and further reduce the secondary damage of the harmful bacterial colonies to human bodies when people fall down.

The sodium alginate is used for bonding metal zinc, bamboo charcoal powder and organosilicon quaternary ammonium salt antibacterial agent. The bamboo charcoal powder can also absorb water on the surface to be coated and can also be used as biochar to generate a synergistic effect with the organosilicon quaternary ammonium antibacterial agent, so that the possibility of hydrolysis of the organosilicon quaternary ammonium antibacterial agent is reduced.

In addition, when the liquid coating is coated on the surface of the iron bridge, the density of the metal zinc is relatively high, so that the metal zinc can gradually sink in the process of curing the liquid coating to form a coating, so that a zinc layer is formed on the surface of the iron bridge, and then secondary oxidation resistance protection is carried out on the iron bridge through a cathode protection method of a sacrificial anode, so that the possibility of corrosion of the iron bridge is further reduced.

Moreover, when the iron bridge is protected by the metal zinc, the decomposed zinc ions can form gel with sodium alginate and carbon dioxide, so that the film forming rate of the liquid coating is improved, the curing speed of the liquid coating is effectively accelerated, the strength and tear resistance of the coating are improved, and the adhesive force of the coating is indirectly improved.

Preferably, the weight ratio of the metal zinc, the sodium alginate, the bamboo charcoal powder and the organosilicon quaternary ammonium salt antibacterial agent is 2.

By adopting the technical scheme, the weight ratio of the metal zinc, the sodium alginate, the bamboo charcoal powder and the organic silicon quaternary ammonium salt antibacterial agent is 2.

In a second aspect, the application provides a preparation method of the anti-corrosion and anti-slip resin coating powder, which adopts the following technical scheme:

a preparation method of the anti-corrosion and anti-skid resin coating powder comprises the following steps:

(1) Grinding and mixing sulfonic acid graft modified epoxy resin powder, polyester resin powder, amido ethoxy quaternary ammonium salt and an anticorrosive additive to obtain a mixed raw material A;

(2) And mixing the mixed raw material A with rubber particles to obtain the anti-corrosion and anti-skid resin coating powder.

By adopting the technical scheme, the sulfonic acid graft modified epoxy resin powder, the polyester resin powder, the amido ethoxy quaternary ammonium salt and the anticorrosive additive are firstly ground, so that when the anticorrosive antiskid resin coating powder is mixed with water to obtain the liquid coating, the anticorrosive antiskid resin coating powder can be more uniformly distributed in the water, and the adhesive force of the coating is indirectly improved.

In a third aspect, the application provides an application of the anti-corrosion and anti-skid resin coating powder, which adopts the following technical scheme:

the application of the anti-corrosion and anti-slip resin coating powder can prepare liquid coating with water, and the liquid coating is suitable for the surfaces of underground garages, factory buildings, markets, hospitals, laboratories and bridges.

In summary, the present application has the following beneficial effects:

1. after the liquid coating is solidified to form the coating, the rubber particles can protrude out of the surface of the coating, so that a plurality of protruding friction points are formed, the friction force between the coating and the soles of people is increased, and the slip possibility of people is effectively reduced.

2. The rubber particles have excellent elasticity, so that when people fall down due to accidents, the rubber particles can buffer the human body and reduce the secondary damage of the particles to the human body.

3. The triangular prism structure surely forms stable top point friction point and stable below support plane after stable the placing to when effectively reducing the possibility that rubber granule takes place to roll, can also increase the pressure of rubber granule and people's sole through point friction point, further reduce the possibility that people appear slipping.

Drawings

FIG. 1 is a schematic view of the structure of rubber particles of application example 1;

FIG. 2 is a schematic view of the structure of rubber particles of application example 6;

FIG. 3 is a schematic view of the structure of rubber particles of application example 7;

FIG. 4 is a schematic view of the structure of rubber particles of application example 8.

Detailed Description

The present application will be described in further detail below with reference to the accompanying drawings 1 to 4, examples and comparative examples.

Raw materials

The sulfonic acid graft modified epoxy resin is AMPS modified epoxy resin, and the preparation method thereof refers to the paper (Zheng Wenji. Synthesis and emulsification properties of AMPS modified epoxy resin [ D ]. Zhongnan university, 2005).

The polyester resin powder is commercially available saturated polyester resin powder with molecular weight of 2000-6000. Nitrile rubber plates, nitrile rubber spheres (d =1.5 cm), fluororubber spheres (d =1.5 cm), ethylene propylene rubber spheres (d =1.5 cm), amido ethoxy quaternary ammonium salt, sodium alginate, bamboo charcoal powder, and organosilicon quaternary ammonium salt antibacterial agent (MS-K012) are all commercially available.

Preparation example 1

A cylindrical nitrile rubber strip is formed by cutting a nitrile rubber plate, the length of the nitrile rubber strip is 3cm, and the diameter of the cross section of the nitrile rubber strip is 1.5cm.

Preparation example 2

The quadrangular prism-shaped nitrile rubber strip is formed by cutting a nitrile rubber plate, the length of the nitrile rubber strip is 3cm, the cross section of the nitrile rubber strip is square, and the side length of the cross section of the nitrile rubber strip is 1.5cm.

Preparation example 3

A triangular prism-shaped nitrile rubber strip is formed by cutting a nitrile rubber plate, the length of the nitrile rubber strip is 3cm, the cross section of the nitrile rubber strip is an isosceles triangle, and the length of a middle line of the bottom of the isosceles triangle is 1.5cm.

Examples

Example 1

An anticorrosive antiskid resin coating powder preparation, the preparation method comprises the following steps:

(1) Adding 30kg of sulfonic acid graft modified epoxy resin powder, 30kg of polyester resin powder, 10kg of amido ethoxy quaternary ammonium salt and 13kg of anticorrosive additive into a grinder to grind for 2 hours, and keeping the temperature of a mortar below 34 ℃ to obtain a mixed raw material A with the particle size of 400 meshes;

(2) Putting the mixed raw material A and 40kg of rubber particles, namely nitrile rubber balls (d =1.5 cm), into a stirrer, and mixing at a stirring speed of 500r/min for 40min to obtain anticorrosive and antiskid resin coating powder;

wherein the anti-corrosion additive is a mixture of metal zinc, sodium alginate, bamboo charcoal powder and an organosilicon quaternary ammonium salt antibacterial agent, and the weight ratio of the metal zinc, the sodium alginate, the bamboo charcoal powder and the organosilicon quaternary ammonium salt antibacterial agent is 2.

Example 2

The difference from example 1 is that the rubber particles nitrile rubber spheres (d =1.5 cm) were replaced by rubber particles fluororubber spheres (d =1.5 cm) in the same weight ratio.

Example 3

The difference from example 1 was that the rubber particles-nitrile rubber balls (d =1.5 cm) were replaced with rubber particles-ethylene propylene rubber balls (d =1.5 cm) in the same weight ratio.

Example 4

The difference from example 1 is that the amount of the amidoethoxy quaternary ammonium salt added is 8kg.

Example 5

The difference from example 1 is that the amount of the amidoethoxy quaternary ammonium salt added is 13kg.

Examples 6 to 8

The difference from example 1 is that the rubber particles, nitrile rubber balls (d =1.5 cm), were replaced with the same weight ratio of preparation examples 1-3.

Example 9

The difference from example 1 is that no bamboo charcoal powder was added.

Example 10

The difference from the embodiment 1 is that the weight ratio of the metal zinc, the sodium alginate, the bamboo charcoal powder and the organic silicon quaternary ammonium salt antibacterial agent is 1.

Example 11

The difference from the embodiment 1 is that the weight ratio of the metal zinc, the sodium alginate, the bamboo charcoal powder and the organic silicon quaternary ammonium salt antibacterial agent is 3.

Comparative example

Comparative example 1

The difference from example 1 is that no corrosion inhibiting additive is added.

Application examples

Application examples 1 to 11

The liquid coating is prepared by mixing the examples 1-11 and water according to the mass ratio of 0.8.

Comparative application

Application comparative example 1

Performance test

Detection method

1. Adhesion Performance test

Three samples were taken from application examples 1 to 5, followed by flushing the samples with water (40 Npa) for 20min by means of a high-pressure water gun, followed by observing the degree of loosening of the rubber particles in the samples, and finally, the adhesion properties of the coating and the rubber particles in the samples are represented by "a, b, c, d".

a. The rubber particles are stably bonded without loosening;

b. the rubber particles are slightly loosened and can move in a small amplitude;

c. the rubber particles are loosened and can move greatly;

d. the rubber particles are loosened and can roll;

2. test of antibacterial Property

Three samples were taken from application example 1, application examples 9 to 11, and application comparative example 1, respectively, and then subjected to antibacterial tests with reference to ASTM-E-2149-01, determination of antibacterial behavior of a steady-state antibacterial agent under dynamic contact conditions, and averaged.

And (3) detection results: the results of the adhesion property test of application examples 1 to 5 are specifically shown in table 1, and the results of the antibacterial property test of application example 1, application examples 9 to 11, and application comparative example 1 are shown in table 2.

TABLE 1 Table of results of adhesion test of application examples 1 to 5

	Adhesive property		Adhesive property
				Application example 1	b	Application example 4	c
Application example 2	d	Application example 5	b
				Application example 3	c

TABLE 2 test results of antibacterial properties of application example 1, application examples 9 to 11, and application comparative example 1

	Escherichia coli	Staphylococcus aureus
			Application example 1	98.2	99.1
Application example 9	93.3	92.7
			Application example 10	96.3	96.9
Application example 11	96.7	97.2
			Application comparative example 1	78.3	76.1

As can be seen from the combination of application examples 1 to 3 and table 1, the adhesive ability of the rubber particles of application examples 2 to 3 was significantly reduced compared to that of application example 1, and particularly, the adhesive ability of application example 2 was worse than that of application example 3. Therefore, in the anticorrosive anti-skid resin coating powder system, the nitrile rubber has the strongest bonding capability, the ethylene propylene rubber has the second highest bonding capability, and the fluororubber has the poorer bonding capability.

In the combination of application example 1, application examples 4 to 5 and table 1, it can be seen that the adhesive ability of application example 4 is significantly reduced compared to application example 1, while the adhesive ability of application example 5 is not significantly changed, thereby illustrating that the adhesive ability of rubber particles is gradually increased with the increase of the specific gravity of the amidoethoxy quaternary ammonium salt in the anti-corrosive and anti-slip resin coating powder system. However, when the specific gravity of the amidoethoxy quaternary ammonium salt reached that of application example 1, the adhesive ability of the rubber particles did not change much even if the amount of the amidoethoxy quaternary ammonium salt was increased, and the specific gravity of the amidoethoxy quaternary ammonium salt was superior in application example 1 for cost reasons.

When the rubber particles are nitrile rubber balls (d =1.5 cm) as can be seen by referring to fig. 1 in combination with application example 1, if the sole of a person applies force to the coating along the direction a, once the nitrile rubber balls are loosened, the nitrile rubber balls roll along the direction b, so that the friction force between the sole of the person and the coating is reduced, and the possibility that the person slips is improved.

Referring to fig. 2 in conjunction with application example 6, it can be seen that when the rubber particles are prepared according to preparation example 1, since preparation example 1 has a cylindrical shape, when the longitudinal direction of preparation example 1 is not perpendicular to direction a, preparation example 1 is not easy to roll along direction b, thereby indirectly reducing the possibility of slipping.

However, it is apparent that the preparation example 1 can be rolled when the longitudinal direction of the preparation example 1 is perpendicular to the direction a, and thus, in order to reduce the occurrence of rolling of rubber particles, the application example 7 is used to replace the preparation example 1 with the preparation example 2, as shown in fig. 3 in particular.

Referring to fig. 3, the cross-section of preparative example 2 is square, so that the roll of preparative example 2 does not occur even when the length direction of preparative example 2 is perpendicular to the direction a. And along with the force application of people along direction a, preparation 2 forms the frictional force along direction c, effectively reduces the possibility that people slip.

It can be seen by combining application example 8 and referring to fig. 4 that, when the rubber particles adopt preparation example 3, since the cross section of preparation example 3 is triangular and the triangle has an upper tip friction point, when the sole of a person walks on the coating, the pressure between the preparation example 3 and the sole of the person is increased by the tip friction point, even the tip friction point can be inserted into the grain of the sole of the person, so that the preparation example 3 and the sole of the person are promoted to form a direction d friction force far greater than the direction c friction force, and the possibility that the person slips is further reduced.

In addition, because preparation example 3 also has a stable lower support plane, when the sole of a person applies force to preparation example 3 along direction a, preparation example 3 is not easy to roll along direction a, and the possibility of slipping of the person is further reduced.

In combination with application example 1, application examples 9 to 11, and application comparative example 1, and in combination with table 2, it can be seen that the antibacterial properties of application example 1 to escherichia coli and staphylococcus aureus are significantly improved compared to application comparative example 1. Thus, the antiseptic additive has a remarkable antibacterial effect.

Compared with the application example 1, the antibacterial properties of the application example 9 to escherichia coli and staphylococcus aureus are significantly reduced, so that the antibacterial property of the bamboo charcoal powder to the preservative additive is improved.

On the other hand, the antibacterial properties of the anti-corrosive additives of application examples 10 to 11 against escherichia coli and staphylococcus aureus were reduced compared to application example 1, which shows that the antibacterial properties of the anti-corrosive additives were gradually improved as the specific gravities of the bamboo charcoal powder and the organosilicon quaternary ammonium salt antibacterial agent were reduced. However, when the specific gravities of the bamboo charcoal powder and the organosilicon quaternary ammonium salt antibacterial agent are reduced to the ratio of application example 1, if the specific gravities of the bamboo charcoal powder and the organosilicon quaternary ammonium salt antibacterial agent are further reduced, the antibacterial performance of the antiseptic additive is gradually reduced.

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.

Claims

1. The anticorrosive antiskid resin coating powder is characterized by being prepared from the following raw materials in parts by weight: 25-35 parts of sulfonic acid graft modified epoxy resin powder, 25-35 parts of polyester resin powder, 8-13 parts of amido ethoxy quaternary ammonium salt, 35-45 parts of rubber particles and 10-15 parts of an anticorrosive additive, wherein the rubber particles are nitrile rubber, and the anticorrosive additive is a mixture of metal zinc, sodium alginate, bamboo charcoal powder and an organosilicon quaternary ammonium salt antibacterial agent.

2. The anticorrosive antiskid resin coating powder of claim 1, characterized in that: the rubber particles are of a strip structure.

3. The anticorrosive antiskid resin coating powder of claim 2, characterized in that: the rubber particles are of a polygonal prism structure.

4. The anticorrosive and anti-slip resin coating powder of claim 3, characterized in that: the rubber particles are in a triangular prism structure.

5. The anticorrosive antiskid resin coating powder of claim 1, characterized in that: the weight ratio of the metal zinc, the sodium alginate, the bamboo charcoal powder and the organosilicon quaternary ammonium salt antibacterial agent is (2).

6. A preparation method of the anti-corrosion and anti-slip resin coating powder of any one of claims 1 to 5 is characterized by comprising the following steps:

(2) And mixing the mixed raw material A with rubber particles to obtain the anti-corrosion and anti-slip resin coating powder.

7. The use of the anti-corrosive and anti-slip resin coating powder of any one of claims 1 to 5, wherein the anti-corrosive and anti-slip resin coating powder is formulated with water to form a liquid coating, and the liquid coating is suitable for the surfaces of underground garages, factory buildings, markets, hospitals, laboratories, and bridges.