CN114605169B

CN114605169B - Silicon-based reinforcer for reinforcing stone and preparation method thereof

Info

Publication number: CN114605169B
Application number: CN202210321727.4A
Authority: CN
Inventors: 左可胜; 李荣西
Original assignee: Changan University
Current assignee: Changan University
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2023-03-21
Anticipated expiration: 2042-03-30
Also published as: CN114605169A

Abstract

The invention discloses a silicon-based reinforcer for reinforcing stone and a preparation method thereof, wherein the silicon-based reinforcer comprises water glass and fatty alcohol-polyoxyethylene ether (JFC). The silicon-based reinforcer prepared by the technical scheme of the invention is nontoxic and harmless, has stronger bonding strength and permeability compared with common sodium silicate, can quickly permeate into the stone without forming a thicker film on the surface of the stone, can obviously improve the compressive strength of the stone, keeps the decorative effect of the stone and prolongs the service life.

Description

Silicon-based reinforcer for reinforcing stone and preparation method thereof

Technical Field

The invention belongs to the technical field of stone reinforcers, and particularly relates to a silicon-based reinforcer for reinforcing stone and a preparation method thereof.

Background

The stone comprises natural stone and artificial stone, is a good decorative material, is used for building decoration, and has diversified decorative effects, such as noble, firm and beautiful effects. However, due to different causes, many natural stones contain many gaps and holes invisible to the naked eye, so that the stones have certain water absorption, and meanwhile, harmful substances in the environment can permeate into the stones to cause the pathological changes of the stones, thus affecting the decorative effect and the service life. Therefore, in practical use, the stone is often required to be strengthened.

At present, water glass is commonly used as a stone reinforcer in the market, but when the water glass is used as the reinforcer to treat stones, a film can be formed on the surfaces of the stones, the reinforcing effect is poor, and the decorative effect and the service life of the stones are influenced.

Disclosure of Invention

Based on the problems, the invention discloses an inorganic reinforcer, which is a silicon-based reinforcer with low cost, no toxicity or pollution, high bonding property and easy penetration into the stone without forming a film on the surface of the stone.

The invention aims to provide a novel silicon-based reinforcer for reinforcing stone materials, which is non-toxic and pollution-free, has strong bonding performance and high permeability.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

in a first aspect, the present application provides a silicon-based reinforcer for reinforcing stone, comprising: water glass, secondary alcohol polyoxyethylene ether (JFC) solution.

In one possible implementation, the JFC solution has a mass fraction of 0.2% to 0.5%.

In one possible implementation, the modulus of the water glass is 2.8-3.5, and the specific gravity of the water glass is 1.3-1.4.

In one possible implementation, the silicon-based reinforcing agent further comprises a binder, the water glass: the JFC solution: the dosage ratio of the potassium phosphate is 100mL to (20-40 mL) to (0-10 g).

In one possible implementation, the binder is potassium phosphate.

In a second aspect, the present application also provides a method for preparing a silicon-based reinforcer for reinforcing stone, the method comprising: and respectively and sequentially adding water glass and the JFC solution into the reactor, starting stirring, and stirring for at least 10min to obtain the silicon-based enhancer.

In one possible implementation, before the JFC solution is added to the reactor, the method further comprises: adding the adhesive into a reactor, and starting stirring at the stirring speed of 400-600r/min for 15-30min.

In one possible implementation, the mass fraction of the JFC solution is 0.2-0.5%; the modulus of the water glass is 2.8-3.5, and the specific gravity of the water glass is 1.3-1.4.

In one possible implementation, the water glass: the penetrating agent is: the proportion of the adhesive is 100mL to (20-40 mL) to (0-10 g).

In one possible implementation, the binder is potassium phosphate.

The invention has the beneficial effects that: the silica-based reinforcer for reinforcing stone provided by the invention is an inorganic reinforcer, and has the advantages of low price, no toxicity and no harm compared with an organic reinforcer which is expensive and has volatile organic compounds harmful to human health; meanwhile, compared with the common sodium silicate, the silicon-based reinforcer provided by the invention has stronger bonding strength and permeability, can quickly permeate into the stone without forming a thicker film on the surface of the stone, thereby better maintaining the decorative effect of the stone and prolonging the service life.

Drawings

FIG. 1 is a schematic flow diagram of a method for preparing a silicon-based enhancer provided herein;

FIG. 2 is a graph of the pore distribution characteristics of a marble sample;

FIG. 3 is a schematic view showing water glass dropping on the surface of marble;

FIG. 4 is a schematic view of water glass forming a film on the surface of marble;

FIG. 5 is a schematic view of a silicon-based reinforcement agent falling down onto the surface of marble;

fig. 6 is a schematic view illustrating penetration of a silicon-based reinforcing agent into the surface of marble.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to examples, which are only for illustrating the technical aspects of the present invention and should not be construed as limiting the scope of the present invention.

The specific embodiment is as follows:

the application provides a silica-based reinforcer for reinforcing stone, can permeate to marble surface and can not form a rete on the surface, reinforce stone, increase the compressive strength of stone material.

A silicon-based reinforcement for reinforcing stone materials, comprising: water glass, secondary alcohol polyoxyethylene ether (JFC) solution.

In an alternative embodiment, the water glass: the dosage proportion of the JFC solution is 100mL to (20-40 mL).

In an alternative embodiment, the JFC solution has a mass fraction of 0.2% to 0.5%.

In an alternative embodiment, the water glass has a modulus of 2.8 to 3.5 and a specific gravity of 1.3 to 1.4.

In an alternative embodiment, the silicon-based reinforcement agent further comprises a binder; the water glass: the JFC solution: the dosage ratio of the adhesive is 100mL to (20-40 mL) to (0-10 g).

In an alternative embodiment, the binder is potassium phosphate.

The application also provides a preparation method of the silicon-based reinforcer for reinforcing the stone.

FIG. 1 is a schematic flow chart of a method for preparing a silicon-based enhancer according to the present application. As shown in fig. 1, the preparation method of a silicon-based enhancer provided by the present application comprises:

and S101, adding the water glass and the JFC solution into the reactor, and stirring at a stirring speed of 400-600 r/min.

S102, adding a binder into the reactor.

S103, stirring at a stirring speed of 400-600r/min for at least 10min.

It should be noted that when the silicon-based reinforcing agent of the present application does not contain a binder, S102 is not a necessary step.

The following describes in detail the preparation method of a silicon-based enhancer provided in the examples of the present application with specific examples.

In an alternative embodiment, it may be prepared by the following steps: and adding 40mL of JFC solution with the mass fraction of 0.4 percent into 100mL of water glass with the modulus of 3.2, and stirring at the speed of 500r/min for 10min to obtain the silicon-based stone reinforcer.

And (3) dripping the silicon-based reinforcer prepared in the step on the surface of the cubic marble with the side length of 5cm, wherein the reinforcer is used for completely wetting the marble sample. Thereafter, the samples were dried and their compressive strength was measured.

In another alternative embodiment, the preparation may be carried out as follows:

step 1, adding 8g of potassium phosphate into 100mL of water glass with a modulus of 3.2, and stirring at 500r/min for 15min to obtain a solution A.

And 2, mixing the solution A with 40mL of JFC solution with the mass fraction of 0.4%, and continuously stirring for 10min to prepare the silicon-based stone reinforcer.

Dripping the silicon-based stone reinforcer prepared according to the steps on the surface of the cubic marble with the side length of 5cm, wherein the reinforcer is used for completely wetting the marble sample. After drying, the compressive strength was measured.

The practical process and practical effect of reinforcing stone with silicon-based reinforcing agent will be exemplified below.

In practical application, a certain marble ore in southern Shaanxi has high purity, good whiteness and large resource amount (0.79 billion cubic meters), and the compressive strength of the marble is 25.59 +/-5.43 MPa; 9 samples of the ore were collected for mercury intrusion tests, and the results were as follows:

table 1 shows mercury intrusion experimental data for marble samples.

TABLE 1

As can be seen from FIG. 1 and Table 1, the mean diameter of the pores of the marble was 13.57. + -. 0.79. Mu.m, the types of the pores were intergranular, the median radii of the 9 sample throats were all less than 0.20. Mu.m, and the pores were microcapillary, and the liquid could not flow inside the pores under normal temperature and pressure. Therefore, by adopting a dipping or spraying process, the liquid reinforcer can not enter the inner pores of the marble, and the reinforcing effect is only limited to the surface layer. The mean pore radius is inversely related to the median pore throat radius.

Referring to fig. 3 and 4, the water glass is directly adopted as a reinforcer to be dripped into the marble, the water glass has poor permeability in the marble, and the contact angle with the surface of the marble is large; and the water glass dropped on the surface of the marble is difficult to permeate into the marble, and a thicker film is formed on the surface of the marble after drying.

Referring to fig. 5 and 6, when the silicon-based reinforcer of the present application is dropped on the surface of the marble, the silicon-based reinforcer of the present application has good permeability in the marble and a small contact angle with the surface of the marble; after the silicon-based reinforcer dropped on the surface of the marble infiltrated into the marble and dried, a film distinguishable by naked eyes was not formed.

Tests show that the silicon-based reinforcer added with the adhesive is applied to the stone, the compressive strength of the stone is 45.64 +/-4.15 MPa, the silicon-based reinforcer without the adhesive is applied to the stone, and the compressive strength of the stone is 45.86 +/-0.67 MPa. The cost of the silicon-based stone reinforcer per ton is about 3500 yuan, and the dosage of the silicon-based stone reinforcer per ton is 2.13kg. The currently used reinforcer of the enterprise is an inorganic-organic mixed reinforcer, the price per ton is 3.5 ten thousand yuan, the strength is 34.32 +/-0.54 MPa, and the dosage per ton of stone is 2.45kg.

According to the test data and the example pictures, the silicon-based reinforcer for reinforcing the stone material, which is prepared by the invention, has better permeability on marble compared with the traditional water glass reinforcer, and a film can not be formed on the surface of the marble after the silicon-based reinforcer is dried, so that the problems that the traditional water glass is difficult to permeate into the stone material and a film can not be formed on the surface are solved; compared with the compressive strength of the marble, the compressive strength of the stone can be obviously improved even if the silicon-based reinforcer is added in a dripping mode. In addition, the silicon-based enhancer of the invention overcomes the problems that the traditional organic enhancer volatilizes residual organic matters and is harmful to human health.

While the invention has been described in detail in this specification with reference to specific embodiments and examples, it will be apparent to one skilled in the art that certain changes and modifications can be made therein without departing from the scope of the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The silicon-based reinforcer for reinforcing the stone is characterized by comprising the following components in percentage by weight: water glass, secondary alcohol polyoxyethylene ether JFC solution; the water glass: the dosage proportion of the JFC solution is 100mL to (20-40 mL); the JFC solution accounts for 0.2-0.5% in mass fraction; the modulus of the water glass is 2.8-3.5, and the specific gravity of the water glass is 1.3-1.4.

2. The silicon-based reinforcer for reinforcing the stone is characterized by comprising the following components in percentage by weight: water glass, secondary alcohol polyoxyethylene ether JFC solution and adhesive; the water glass: the JFC solution: the dosage proportion of the adhesive is 100mL to (20-40 mL) to (0-10 g), wherein the dosage of the adhesive is more than 0g; the JFC solution accounts for 0.2% -0.5% in mass fraction; the modulus of the water glass is 2.8-3.5, and the specific gravity of the water glass is 1.3-1.4.

3. The silica-based reinforcer for reinforcing stone of claim 2, wherein the binder is potassium phosphate.

4. A method of preparing a silicon-based enhancer according to claim 1, comprising:

adding water glass and JFC solution into a reactor;

stirring at a stirring speed of 400-600r/min for at least 10min to obtain the silicon-based enhancer.

5. The method of claim 4, wherein the adding water glass, JFC solution to the reactor comprises: adding a JFC solution with the mass fraction of 0.2-0.5%, a water glass solution with the modulus of 2.8-3.5 and the specific gravity of 1.3-1.4 into the reactor.

6. A method of preparing a silicon-based reinforcement agent according to claim 2 or 3, comprising:

adding water glass, a JFC solution, and a binder to a reactor;

stirring for 15-30min at the stirring speed of 400-600r/min to obtain the silicon-based enhancer.

7. The method of claim 6, wherein the adding water glass, JFC solution, and binder to a reactor comprises: adding 0.2-0.5% by mass of JFC solution, 2.8-3.5% by mass of water glass solution with the modulus of 2.8-1.4 by mass of specific gravity and a binder into the reactor, wherein the weight ratio of the water glass: the JFC solution: the proportion of the adhesive is 100mL to (20-40 mL) to (0-10 g).

8. The method for preparing a silicon-based reinforcement according to claim 6 or 7, wherein the binder is potassium phosphate.