High-strength anti-cracking gypsum board and preparation method thereof

Abstract

The invention provides a high-strength anti-cracking gypsum board and a preparation method thereof, and relates to the technical field of gypsum boards. The invention discloses a gypsum board and a preparation method thereof. Comprising the following raw materials in parts by weight: 40-60 parts of gypsum powder, 5-10 parts of clay, 5-10 parts of slag, 5-15 parts of starch, 10-20 parts of a fiber reinforced material, 5-8 parts of a water-based polymer emulsion, 5-10 parts of natural resin, 1-3 parts of a sound insulation material, 5-10 parts of cellulose, 3-6 parts of a fire retardant, 3-6 parts of a moisture-proof agent, 5-8 parts of an anticorrosive agent, 3-6 parts of an antirust agent and 2-4 parts of a polymer modifier. The fiber reinforced material and the polymer modifier are added, so that the gypsum board has higher strength and can bear a certain degree of external pressure and impact, and various functional raw materials such as natural resin, a fireproof agent and a moisture-proof agent are adopted, so that the crack resistance of the gypsum board can be effectively improved, the cracking condition in the use process is reduced, and the gypsum board is suitable for popularization and application. The sound insulation material rock wool is added in the forming process, noise transmitted by the gypsum board can be effectively reduced, and the indoor sound insulation effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of gypsum boards, in particular to a high-strength crack-resistant gypsum board and a preparation method thereof. Background Art

[0002] Gypsum is widely found in the earth's rock strata. It is a building material with a long history of application. It is one of the three pillars of inorganic cementitious materials, along with lime and cement. It has the advantages of light weight, good fire resistance, good sound insulation and heat insulation, stable size, wide range of raw materials, easy burning, low energy consumption, and harmlessness to the human body. It is a green and energy-saving building material that is highly praised and developed internationally.

[0003] In recent years, gypsum board has been favored by users for its advantages such as light weight, non-combustibility and "breathing" function. It has been widely used in various buildings such as residences, office buildings, shops, hotels and industrial plants, such as interior partitions, wall covering panels (instead of wall plastering layers), ceilings, sound-absorbing panels, ground base panels and various decorative panels. However, the existing interior wall gypsum board has low strength and is easy to break during transportation and installation, which brings inconvenience to construction. In addition, after installation, the gypsum board will cause serious quality problems such as gypsum falling off and cracking under the action of external forces such as vibration, impact, extrusion and in a humid environment. While the shape is damaged, it not only affects the appearance of the building, but also poses certain hidden dangers to the safety of the building decoration. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a high-strength crack-resistant gypsum board and a preparation method thereof, which solves the problem that the existing interior wall gypsum boards have low strength and are easily broken during transportation and use and installation, causing inconvenience to construction.

[0005] To achieve the above objectives, the present invention is implemented through the following technical scheme: a high-strength and crack-resistant gypsum board, comprising the following raw materials in parts by weight: 40-60 parts of gypsum powder, 5-10 parts of clay, 5-10 parts of slag, 5-15 parts of starch, 10-20 parts of fiber reinforcement material, 5-8 parts of water-based polymer emulsion, 5-10 parts of natural resin, 1-3 parts of sound insulation material, 15-30 parts of distilled water, 5-10 parts of cellulose, 3-6 parts of fire retardant, 3-6 parts of moisture-proof agent, 5-8 parts of corrosion inhibitor, 3-6 parts of rust inhibitor and 2-4 parts of polymer modifier.

[0006] Preferably, the fiber reinforcement material is any one of glass fiber and polypropylene fiber, the sound insulation material is rock wool, the fire retardant is borate, the moisture proof agent is expanded perlite, the corrosion inhibitor is borate, the rust inhibitor is rust-proof oil, and the polymer modifier is styrene.

[0007] Preferably, a high-strength crack-resistant gypsum board and a preparation method thereof include the following steps:

[0008] S1. Raw material mixing

[0009] Add all the gypsum powder, clay, slag and starch into the mixing tank, then add 1 / 3 of distilled water, stir at a speed of 500-1500r / min, continue stirring at a constant temperature for 10-25 minutes and then stop stirring to obtain gypsum paste;

[0010] S2. Raw material enhancement

[0011] Add all the fiber reinforcement materials and cellulose to the mixed raw materials in S1, and stir at a speed of 300-600r / min to ensure that the fiber reinforcement materials and cellulose are evenly dispersed in the gypsum paste and then stop stirring;

[0012] S3. Add liquid raw materials

[0013] Add all the water-based polymer emulsion, natural resin and the remaining 2 / 3 of distilled water to the gypsum paste mixed in S2, and stir at a speed of 1000-2000 r / min until it is evenly stirred and then stop stirring;

[0014] S4. Add functional raw materials

[0015] Gradually add all the fire retardant, moisture proof agent, corrosion inhibitor, rust inhibitor and polymer modifier to the mixed materials in S3, and stir at a speed of 800-1600r / min until the mixture is evenly stirred, and then stop stirring to obtain a high-strength and crack-resistant gypsum board paste;

[0016] S5. Molding

[0017] The paste finally obtained in S4 is poured into the molding mold twice. After the first pouring is completed, all the sound insulation materials are placed on the paste, and then the remaining paste is poured into the molding mold to completely cover the sound insulation materials. Then the mold is vibrated by a vibration table. The vibration can remove bubbles in the paste and also compact the paste to avoid gaps. After the compaction is completed, the paste is compacted and formed by the mold. After the forming is completed, it is slowly taken out, so that the uncured gypsum board can be obtained;

[0018] S6. Curing

[0019] The uncured gypsum board formed in S5 is cured by natural curing, so that the moisture and other components in the gypsum board raw materials react chemically to form a high-strength and crack-resistant gypsum board;

[0020] S7. Trimming

[0021] The high-strength, crack-resistant gypsum board finally obtained in S6 is polished and trimmed on the surface and edges by a polishing machine.

[0022] The present invention provides a high-strength crack-resistant gypsum board and a preparation method thereof. The present invention has the following beneficial effects:

[0023] 1. The present invention adds fiber reinforcement materials and polymer modifiers to make the gypsum board have higher strength and be able to withstand a certain degree of external pressure and impact. It also uses a variety of functional raw materials, such as natural resins, fire retardants and moisture-proof agents, which can effectively improve the crack resistance of the gypsum board and reduce cracking during use.

[0024] 2. The present invention can effectively reduce the noise transmitted by the gypsum board and improve the indoor sound insulation effect by adding sound insulation material rock wool during the molding process. The addition of anti-corrosion agents and rust inhibitors can avoid cracking of the gypsum board, extend the service life of the gypsum board, and reduce the possibility of moisture and oxidation. In addition, the environmentally friendly raw materials such as water-based polymer emulsion and natural resin used in the preparation process are non-toxic and odorless, meeting environmental protection requirements.

[0025] 3. The preparation process of the present invention is simple and clear. Through the steps of gradually mixing raw materials, stirring evenly, molding, curing and trimming, a high-strength and crack-resistant gypsum board can be obtained relatively quickly. In short, the high-strength and crack-resistant gypsum board has the beneficial effects of high strength, good crack resistance, improved functionality and simple preparation, and is suitable for the fields of construction, decoration and interior design. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Embodiment 1:

[0028] The embodiment of the present invention provides a high-strength crack-resistant gypsum board, comprising the following raw materials in parts by weight: 40 parts of gypsum powder, 5 parts of clay, 5 parts of slag, 5 parts of starch, 10 parts of fiber reinforcement material, 5 parts of water-based polymer emulsion, 5 parts of natural resin, 1 part of sound insulation material, 15 parts of distilled water, 5 parts of cellulose, 3 parts of fire retardant, 3 parts of moisture-proof agent, 5 parts of corrosion inhibitor, 3 parts of rust inhibitor and 2 parts of polymer modifier;

[0029] The fiber reinforcement material is any one of glass fiber and polypropylene fiber, the sound insulation material is rock wool, the fire retardant is borate, the moisture proof agent is expanded perlite, the corrosion inhibitor is borate, the rust inhibitor is rust-proof oil, and the polymer modifier is styrene;

[0030] A high-strength crack-resistant gypsum board and a preparation method thereof, comprising the following steps:

[0031] S1. Raw material mixing

[0032] Add all the gypsum powder, clay, slag and starch into the mixing tank, then add 1 / 3 of distilled water, stir at a speed of 500r / min, continue stirring at a constant temperature for 10 minutes and then stop stirring to obtain gypsum paste;

[0033] S2. Raw material enhancement

[0034] Add all the fiber reinforcement materials and cellulose to the mixed raw materials in S1, and stir at a speed of 300-600r / min to ensure that the fiber reinforcement materials and cellulose are evenly dispersed in the gypsum paste and then stop stirring;

[0035] S3. Add liquid raw materials

[0036] Add all the water-based polymer emulsion, natural resin and the remaining 2 / 3 of distilled water to the gypsum paste mixed in S2, and stir at a speed of 1000 r / min until it is evenly stirred and then stop stirring;

[0037] S4. Add functional raw materials

[0038] Gradually add all the fire retardant, moisture proof agent, corrosion inhibitor, rust inhibitor and polymer modifier to the mixed materials in S3, and stir at a speed of 800r / min until the mixture is evenly stirred, and then stop stirring to obtain a high-strength and crack-resistant gypsum board paste;

[0039] S5. Molding

[0040] The paste finally obtained in S4 is poured into the molding mold twice. After the first pouring is completed, all the sound insulation materials are placed on the paste, and then the remaining paste is poured into the molding mold to completely cover the sound insulation materials. Then the mold is vibrated by a vibration table. The vibration can remove bubbles in the paste and also compact the paste to avoid gaps. After the compaction is completed, the paste is compacted and formed by the mold. After the forming is completed, it is slowly taken out, so that the uncured gypsum board can be obtained;

[0041] S6. Curing

[0042] The uncured gypsum board formed in S5 is cured by natural curing, so that the moisture and other components in the gypsum board raw materials react chemically to form a high-strength and crack-resistant gypsum board;

[0043] S7. Trimming

[0044] The high-strength, crack-resistant gypsum board finally obtained in S6 is polished and trimmed on the surface and edges by a polishing machine.

[0045] By adding fiber reinforcement materials and cellulose, and adopting a specific raw material formula, the strength and crack resistance of the gypsum board can be increased, making it more durable and reliable. By adding functional raw materials such as fire retardants, moisture retardants, corrosion inhibitors, rust inhibitors and polymer modifiers, the fire resistance, moisture resistance, corrosion resistance and rust resistance of the gypsum board can be improved, and its application range and service life can be increased. Adding sound insulation materials such as rock wool during the molding process can effectively isolate noise and provide a better indoor acoustic environment. The preparation process is simple and clear. Through the steps of gradually mixing raw materials, stirring evenly, molding, curing and trimming, high-strength and crack-resistant gypsum board can be obtained quickly. In short, this kind of high-strength and crack-resistant gypsum board has the beneficial effects of high strength, good crack resistance, improved functionality and simple preparation, and is suitable for the fields of construction, decoration and interior design.

[0046] Embodiment 2:

[0047] The embodiment of the present invention provides a high-strength crack-resistant gypsum board, comprising the following raw materials in parts by weight: 60 parts of gypsum powder, 10 parts of clay, 10 parts of slag, 15 parts of starch, 20 parts of fiber reinforcement material, 8 parts of water-based polymer emulsion, 10 parts of natural resin, 3 parts of sound insulation material, 30 parts of distilled water, 10 parts of cellulose, 6 parts of fire retardant, 6 parts of moisture-proof agent, 8 parts of anticorrosive agent, 6 parts of rust inhibitor and 4 parts of polymer modifier;

[0048] The fiber reinforcement material is any one of glass fiber and polypropylene fiber, the sound insulation material is rock wool, the fire retardant is borate, the moisture proof agent is expanded perlite, the corrosion inhibitor is borate, the rust inhibitor is rust-proof oil, and the polymer modifier is styrene;

[0049] A high-strength crack-resistant gypsum board and a preparation method thereof, comprising the following steps:

[0050] S1. Raw material mixing

[0051] Add all the gypsum powder, clay, slag and starch into the mixing tank, then add 1 / 3 of distilled water, stir at a speed of 1500r / min, continue stirring at a constant temperature for 25 minutes and then stop stirring to obtain gypsum paste;

[0052] S2. Raw material enhancement

[0053] Add all the fiber reinforcement materials and cellulose to the mixed raw materials in S1, and stir at a speed of 600 r / min to ensure that the fiber reinforcement materials and cellulose are evenly dispersed in the gypsum paste and then stop stirring;

[0054] S3. Add liquid raw materials

[0055] Add all the water-based polymer emulsion, natural resin and the remaining 2 / 3 of distilled water to the gypsum paste mixed in S2, and stir at a speed of 2000 r / min until it is evenly stirred and then stop stirring;

[0056] S4. Add functional raw materials

[0057] Gradually add all the fire retardant, moisture proof agent, corrosion inhibitor, rust inhibitor and polymer modifier to the mixed materials in S3, and stir at a speed of 1600r / min until the mixture is evenly stirred, and then stop stirring to obtain a high-strength and crack-resistant gypsum board paste;

[0058] S5. Molding

[0059] The paste finally obtained in S4 is poured into the molding mold twice. After the first pouring is completed, all the sound insulation materials are placed on the paste, and then the remaining paste is poured into the molding mold to completely cover the sound insulation materials. Then the mold is vibrated by a vibration table. The vibration can remove bubbles in the paste and also compact the paste to avoid gaps. After the compaction is completed, the paste is compacted and formed by the mold. After the forming is completed, it is slowly taken out, so that the uncured gypsum board can be obtained;

[0060] S6. Curing

[0061] The uncured gypsum board formed in S5 is cured by natural curing, so that the moisture and other components in the gypsum board raw materials react chemically to form a high-strength and crack-resistant gypsum board;

[0062] S7. Trimming

[0063] The high-strength, crack-resistant gypsum board finally obtained in S6 is polished and trimmed on the surface and edges by a polishing machine.

[0064] By adding fiber reinforcement materials and cellulose, and adopting a specific raw material formula, the strength and crack resistance of the gypsum board can be increased, making it more durable and reliable. By adding functional raw materials such as fire retardants, moisture retardants, corrosion inhibitors, rust inhibitors and polymer modifiers, the fire resistance, moisture resistance, corrosion resistance and rust resistance of the gypsum board can be improved, and its application range and service life can be increased. Adding sound insulation materials such as rock wool during the molding process can effectively isolate noise and provide a better indoor acoustic environment. The preparation process is simple and clear. Through the steps of gradually mixing raw materials, stirring evenly, molding, curing and trimming, high-strength and crack-resistant gypsum board can be obtained quickly. In short, this kind of high-strength and crack-resistant gypsum board has the beneficial effects of high strength, good crack resistance, improved functionality and simple preparation, and is suitable for the fields of construction, decoration and interior design.

[0065] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-strength crack-resistant gypsum board, characterized in that: The invention comprises the following raw materials in parts by weight: 40-60 parts of gypsum powder, 5-10 parts of clay, 5-10 parts of slag, 5-15 parts of starch, 10-20 parts of fiber reinforcement material, 5-8 parts of water-based polymer emulsion, 5-10 parts of natural resin, 1-3 parts of sound insulation material, 15-30 parts of distilled water, 5-10 parts of cellulose, 3-6 parts of fire retardant, 3-6 parts of moisture proof agent, 5-8 parts of corrosion inhibitor, 3-6 parts of rust inhibitor and 2-4 parts of polymer modifier.

2. A high-strength crack-resistant gypsum board according to claim 1, characterized in that: The fiber reinforcement material is any one of glass fiber and polypropylene fiber, the sound insulation material is rock wool, the fire retardant is borate, the moisture-proof agent is expanded perlite, the corrosion inhibitor is borate, the rust inhibitor is rust-proof oil, and the polymer modifier is styrene.

3. The high-strength crack-resistant gypsum board and the preparation method thereof according to claim 1, characterized in that: The following steps are involved: S1. Raw material mixing Add all the gypsum powder, clay, slag and starch into the mixing tank, then add 1 / 3 of distilled water, stir at a speed of 500-1500r / min, continue stirring at a constant temperature for 10-25 minutes and then stop stirring to obtain gypsum paste; S2. Raw material enhancement Add all the fiber reinforcement materials and cellulose to the mixed raw materials in S1, and stir at a speed of 300-600r / min to ensure that the fiber reinforcement materials and cellulose are evenly dispersed in the gypsum paste and then stop stirring; S3. Add liquid raw materials Add all the water-based polymer emulsion, natural resin and the remaining 2 / 3 of distilled water to the gypsum paste mixed in S2, and stir at a speed of 1000-2000 r / min until it is evenly stirred and then stop stirring; S4. Add functional raw materials Gradually add all the fire retardant, moisture proof agent, corrosion inhibitor, rust inhibitor and polymer modifier to the mixed materials in S3, and stir at a speed of 800-1600r / min until the mixture is evenly stirred, and then stop stirring to obtain a high-strength and crack-resistant gypsum board paste; S5. Molding The paste finally obtained in S4 is poured into the molding mold twice. After the first pouring is completed, all the sound insulation materials are placed on the paste, and then the remaining paste is poured into the molding mold to completely cover the sound insulation materials. Then the mold is vibrated by a vibration table. The vibration can remove bubbles in the paste and also compact the paste to avoid gaps. After the compaction is completed, the paste is compacted and formed by the mold. After the forming is completed, it is slowly taken out, so that the uncured gypsum board can be obtained; S6. Curing The uncured gypsum board formed in S5 is cured by natural curing, so that the moisture and other components in the gypsum board raw materials react chemically to form a high-strength and crack-resistant gypsum board; S7. Trimming The high-strength, crack-resistant gypsum board finally obtained in S6 is polished and trimmed on the surface and edges by a polishing machine.