Anti-deformation gypsum board with formaldehyde purification effect and preparation method of anti-deformation gypsum board

Abstract

The invention provides an anti-deformation gypsum board with a formaldehyde purification effect and a preparation method of the anti-deformation gypsum board, and relates to the technical field of gypsum boards. The gypsum board comprises the following raw materials in parts by weight: 20-40 parts of gypsum powder, 10-20 parts of bamboo charcoal powder, 5-15 parts of activated carbon, 5-10 parts of silicic acid sol, 3-6 parts of zinc oxide, 5-10 parts of a catalyst, 10-15 parts of silica fume, 5-10 parts of silicon calcium, 10-20 parts of polyester fibers, 3-8 parts of silver ions, 3-8 parts of zinc ions, 6-12 parts of an anti-cracking agent, 5-10 parts of a thickening agent, 3-6 parts of a dispersing agent and 10-30 parts of purified water. By adding bamboo charcoal powder and activated carbon materials, harmful gases such as formaldehyde in air can be effectively purified, by adding polyester fibers, silica fume and silicon-calcium materials, the deformation resistance of the gypsum board can be improved, the service life of the gypsum board can be prolonged, by adding anti-cracking agents such as polypropylene fibers, the cracking situation of the gypsum board can be reduced, and the stability of the gypsum board can be enhanced. By adding the catalyst, silver ion and zinc ion materials, the chemical stability of the gypsum board can be improved, and the service life of the gypsum board is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of gypsum boards, in particular to an anti-deformation gypsum board with formaldehyde purification effect 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] Formaldehyde is listed as a Class I carcinogen by the International Agency for Research on Cancer. It mainly comes from building decoration, renovation, and coatings, such as artificial boards, decoration materials, and coatings used in furniture and decoration. It will gradually be released slowly into the surrounding environment over a long period of time, posing a serious threat to people's health and becoming a fatal killer of residents' health. In the prior art, more and more building materials adopt environmentally friendly designs to reduce the formaldehyde volatilized by the building materials themselves; the above-mentioned building materials have a low formaldehyde content, but they do not have the function of purifying formaldehyde and purifying the air. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a deformation-resistant gypsum board with formaldehyde purification effect and a preparation method thereof, which solves the problem in the prior art that although some building materials themselves have a low formaldehyde content, they are unable to purify formaldehyde and purify the air.

[0005] To achieve the above objectives, the present invention is implemented through the following technical scheme: a deformation-resistant gypsum board with formaldehyde purification effect, comprising the following raw materials in parts by weight: 20-40 parts of gypsum powder, 10-20 parts of bamboo charcoal powder, 5-15 parts of activated carbon, 5-10 parts of silica sol, 3-6 parts of zinc oxide, 5-10 parts of catalyst, 10-15 parts of silica ash, 5-10 parts of calcium silicate, 10-20 parts of polyester fiber, 3-8 parts of silver ions, 3-8 parts of zinc ions, 6-12 parts of anti-cracking agent, 5-10 parts of thickener, 3-6 parts of dispersant and 10-30 parts of pure water.

[0006] Preferably, the catalyst is titanium dioxide, the anti-cracking agent is polypropylene fiber, the thickener is polyacrylamide, and the dispersant is any one of sodium phosphate and sodium dihydrogen phosphate.

[0007] Preferably, a deformation-resistant gypsum board having a formaldehyde purification effect and a preparation method thereof comprises the following steps:

[0008] S1. Mixed

[0009] Add all the gypsum powder and bamboo charcoal powder into a dry mixing barrel, and stir at a speed of 100-300r / min until the gypsum powder and bamboo charcoal powder are preliminarily mixed. After the mixing is completed, adjust the stirring speed to 500-800r / min, and then gradually pour pure water into the mixing barrel. This process is to add water while stirring until the gypsum powder and bamboo charcoal powder are mixed with pure water without particle agglomeration and have good fluidity, then stop adding pure water and stirring, and you can get gypsum slurry;

[0010] S2. Functional raw material mixing

[0011] Add all the activated carbon, silica sol, zinc oxide, catalyst, silica fume, calcium silicate, polyester fiber, silver ions and zinc ions to the gypsum slurry in S1 in sequence, stir at a speed of 500-1000r / min after adding each raw material, and stop stirring until all the raw materials are stirred evenly, so as to obtain functional gypsum slurry;

[0012] S3. Viscosity adjustment

[0013] Add all the anti-cracking agents to the functional gypsum slurry finally obtained in S2, and stir at a speed of 200-500r / min until it is evenly stirred and then stop stirring, then add the thickener and dispersant to the slurry in sequence and gradually, and stir at a speed of 200-400r / min until the slurry is adjusted to the required viscosity and dispersibility, then stop adding the thickener and dispersant, and you can get the ideal gypsum slurry;

[0014] S4. Final stirring

[0015] Pour all the gypsum slurry obtained in S3 into a dry stirrer and stir at a speed of 800-1600 r / min. Continue stirring for 8-15 minutes and then stop stirring.

[0016] S5. Molding

[0017] Pour the gypsum slurry after the final stirring of S4 into the mold, then tap the mold gently with a rubber hammer to break the bubbles in the gypsum slurry by tapping and vibration, and finally compact the gypsum slurry. After compaction and molding, let the gypsum board solidify naturally in the mold for 10-30 minutes and then slowly demould it;

[0018] S6. Drying

[0019] Place the S5 demoulded gypsum board into the dryer and dry it at a temperature of 20-30℃ to promote the gradual volatilization and discharge of moisture inside the gypsum board. Take it out after the gypsum board is completely cured and dried. You can get the anti-deformation gypsum board with formaldehyde purification effect. Finally, package it and store it in a dry and ventilated place.

[0020] The present invention provides a deformation-resistant gypsum board with formaldehyde purification effect and a preparation method thereof. It has the following beneficial effects:

[0021] 1. The present invention can effectively purify harmful gases such as formaldehyde in the air by adding bamboo charcoal powder and activated carbon materials, and can improve the anti-deformation performance of gypsum board and increase its service life by adding polyester fiber, silica fume and calcium silicon materials.

[0022] 2. The present invention can reduce the cracking of gypsum board and enhance its stability by adding anti-cracking agents such as polypropylene fiber. By adding catalysts, silver ions and zinc ion materials, the chemical stability and antibacterial and antimicrobial properties of the gypsum board can be improved, thereby extending its service life.

[0023] 3. The gypsum board of the present invention has the advantage of purifying formaldehyde, improving indoor air quality and being beneficial to human health. At the same time, according to the types and proportions of raw materials in the formula, it may also have functions such as fire prevention and moisture resistance, thereby improving its applicability in construction and interior decoration. DETAILED DESCRIPTION

[0024] 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.

[0025] Embodiment 1:

[0026] The embodiment of the present invention provides an anti-deformation gypsum board with formaldehyde purification effect, comprising the following raw materials in parts by weight: 20 parts of gypsum powder, 10 parts of bamboo charcoal powder, 5 parts of activated carbon, 5 parts of silica sol, 3 parts of zinc oxide, 5 parts of catalyst, 10 parts of silica fume, 5 parts of calcium silicate, 10 parts of polyester fiber, 3 parts of silver ions, 3 parts of zinc ions, 6 parts of anti-cracking agent, 5 parts of thickener, 3 parts of dispersant and 10 parts of pure water;

[0027] The catalyst is titanium dioxide, the anti-cracking agent is polypropylene fiber, the thickener is polyacrylamide, and the dispersant is any one of sodium phosphate and sodium dihydrogen phosphate;

[0028] A deformation-resistant gypsum board with formaldehyde purification effect and a preparation method thereof, comprising the following steps:

[0029] S1. Mixed

[0030] Add all the gypsum powder and bamboo charcoal powder into a dry mixing barrel, and stir at a speed of 100r / min until the gypsum powder and bamboo charcoal powder are preliminarily mixed. After the mixing is completed, adjust the stirring speed to 500r / min, and then gradually pour pure water into the mixing barrel. This process is to add water while stirring until the gypsum powder and bamboo charcoal powder are mixed with pure water without particle agglomeration and have good fluidity, then stop adding pure water and stirring, and you can get gypsum slurry;

[0031] S2. Functional raw material mixing

[0032] Add all the activated carbon, silica sol, zinc oxide, catalyst, silica fume, calcium silicate, polyester fiber, silver ions and zinc ions to the gypsum slurry in S1 in sequence, stir at a speed of 500 r / min after each addition of a raw material, and stop stirring until all the raw materials are stirred evenly, so as to obtain a functional gypsum slurry;

[0033] S3. Viscosity adjustment

[0034] Add all the anti-cracking agents to the functional gypsum slurry finally obtained in S2, and stir at a speed of 200 r / min until it is evenly stirred and then stop stirring, then add the thickener and dispersant to the slurry in sequence and gradually, and stir at a speed of 200 r / min until the slurry is adjusted to the required viscosity and dispersibility, then stop adding the thickener and dispersant, and you can get the ideal gypsum slurry;

[0035] S4. Final stirring

[0036] Pour all the gypsum slurry obtained in S3 into a dry stirrer and stir at a speed of 800 r / min. Continue stirring for 8 minutes and then stop stirring.

[0037] S5. Molding

[0038] Pour the gypsum slurry after the final stirring of S4 into the mold, then tap the mold gently with a rubber hammer to break the bubbles in the gypsum slurry by tapping and vibration, and finally compact the gypsum slurry. After compaction and molding, let the gypsum board solidify naturally in the mold for 10 minutes and then slowly demould it;

[0039] S6. Drying

[0040] Place the S5 demoulded gypsum board into a dryer and dry it at 20°C to promote the gradual volatilization and discharge of moisture inside the gypsum board. Take it out after the gypsum board is completely cured and dried. You can get an anti-deformation gypsum board with formaldehyde purification effect. Finally, package it and store it in a dry and ventilated place.

[0041] Various raw materials are gradually added to the components through the processes of stirring, mixing, functional raw material mixing, viscosity adjustment, final stirring, molding and drying, and the stirring speed, time, temperature and other parameters are controlled to ensure that the final product has ideal performance. The material formula of this gypsum board contains bamboo charcoal powder, activated carbon, silicate sol and other materials, which are all materials with formaldehyde purification effects; by adding bamboo charcoal powder, activated carbon and other materials, formaldehyde and other harmful gases in the air can be effectively purified; by adding polyester fiber, silica ash, calcium silicon and other materials, the deformation resistance of the gypsum board can be improved and its service life can be increased; by adding anti-cracking agents such as polypropylene fiber, the cracking of the gypsum board can be reduced and its stability can be enhanced; by adding catalysts, silver ions, zinc ions and other materials, the chemical stability of the gypsum board can be improved and its service life can be extended. This anti-deformation gypsum board has a good application prospect, especially in the fields of home decoration and building materials.

[0042] Embodiment 2:

[0043] The embodiment of the present invention provides an anti-deformation gypsum board with formaldehyde purification effect, comprising the following raw materials in parts by weight: 40 parts of gypsum powder, 20 parts of bamboo charcoal powder, 15 parts of activated carbon, 10 parts of silica sol, 6 parts of zinc oxide, 10 parts of catalyst, 15 parts of silica fume, 10 parts of calcium silicate, 20 parts of polyester fiber, 8 parts of silver ions, 8 parts of zinc ions, 12 parts of anti-cracking agent, 10 parts of thickener, 6 parts of dispersant and 30 parts of pure water;

[0044] The catalyst is titanium dioxide, the anti-cracking agent is polypropylene fiber, the thickener is polyacrylamide, and the dispersant is any one of sodium phosphate and sodium dihydrogen phosphate;

[0045] A deformation-resistant gypsum board with formaldehyde purification effect and a preparation method thereof, comprising the following steps:

[0046] S1. Mixed

[0047] Add all the gypsum powder and bamboo charcoal powder into a dry mixing barrel, and stir at a speed of 300r / min until the gypsum powder and bamboo charcoal powder are preliminarily mixed. After the mixing is completed, adjust the stirring speed to 800r / min, and then gradually pour pure water into the mixing barrel. This process is to add water while stirring until the gypsum powder and bamboo charcoal powder are mixed with pure water without particle agglomeration and have good fluidity, then stop adding pure water and stirring, and you can get gypsum slurry;

[0048] S2. Functional raw material mixing

[0049] Add all the activated carbon, silica sol, zinc oxide, catalyst, silica fume, calcium silicate, polyester fiber, silver ions and zinc ions to the gypsum slurry in S1 in sequence, stir at a speed of 1000 r / min after each addition of a raw material, and stop stirring until all the raw materials are stirred evenly, so as to obtain a functional gypsum slurry;

[0050] S3. Viscosity adjustment

[0051] Add all the anti-cracking agents to the functional gypsum slurry finally obtained in S2, and stir at a speed of 500 r / min until it is evenly stirred and then stop stirring. Then, add the thickener and dispersant to the slurry in sequence and gradually, and stir at a speed of 400 r / min until the slurry is adjusted to the required viscosity and dispersibility, then stop adding the thickener and dispersant, and you can get the ideal gypsum slurry;

[0052] S4. Final stirring

[0053] Pour all the gypsum slurry obtained in S3 into a dry stirrer and stir at a speed of 1600 r / min for 15 min before stopping stirring;

[0054] S5. Molding

[0055] Pour the gypsum slurry after the final stirring of S4 into the mold, then tap the mold gently with a rubber hammer to break the bubbles in the gypsum slurry by tapping and vibration, and finally compact the gypsum slurry. After compaction and molding, let the gypsum board solidify naturally in the mold for 30 minutes and then slowly demould it;

[0056] S6. Drying

[0057] Place the S5 demoulded gypsum board into the dryer and dry it at 30°C to promote the gradual volatilization and discharge of moisture inside the gypsum board. Take it out after the gypsum board is completely cured and dried. You can get the anti-deformation gypsum board with formaldehyde purification effect. Finally, package it and store it in a dry and ventilated place.

[0058] Various raw materials are gradually added to the components through the processes of stirring, mixing, functional raw material mixing, viscosity adjustment, final stirring, molding and drying, and the stirring speed, time, temperature and other parameters are controlled to ensure that the final product has ideal performance. The material formula of this gypsum board contains bamboo charcoal powder, activated carbon, silicate sol and other materials, which are all materials with formaldehyde purification effects; by adding bamboo charcoal powder, activated carbon and other materials, formaldehyde and other harmful gases in the air can be effectively purified; by adding polyester fiber, silica ash, calcium silicon and other materials, the deformation resistance of the gypsum board can be improved and its service life can be increased; by adding anti-cracking agents such as polypropylene fiber, the cracking of the gypsum board can be reduced and its stability can be enhanced; by adding catalysts, silver ions, zinc ions and other materials, the chemical stability of the gypsum board can be improved and its service life can be extended. This anti-deformation gypsum board has a good application prospect, especially in the fields of home decoration and building materials.

[0059] 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 deformation-resistant gypsum board with formaldehyde purification effect, characterized in that: The invention comprises the following raw materials in parts by weight: 20-40 parts of gypsum powder, 10-20 parts of bamboo charcoal powder, 5-15 parts of activated carbon, 5-10 parts of silicate sol, 3-6 parts of zinc oxide, 5-10 parts of catalyst, 10-15 parts of silica ash, 5-10 parts of calcium silicate, 10-20 parts of polyester fiber, 3-8 parts of silver ions, 3-8 parts of zinc ions, 6-12 parts of anti-cracking agent, 5-10 parts of thickener, 3-6 parts of dispersant and 10-30 parts of pure water.

2. The anti-deformation gypsum board with formaldehyde purification effect according to claim 1, characterized in that: The catalyst is titanium dioxide, the anti-cracking agent is polypropylene fiber, the thickener is polyacrylamide, and the dispersant is any one of sodium phosphate and sodium dihydrogen phosphate.

3. The anti-deformation gypsum board with formaldehyde purification effect and the preparation method thereof according to claim 1, characterized in that: The following steps are involved: S1. Mixed Add all the gypsum powder and bamboo charcoal powder into a dry mixing barrel, and stir at a speed of 100-300r / min until the gypsum powder and bamboo charcoal powder are preliminarily mixed. After the mixing is completed, adjust the stirring speed to 500-800r / min, and then gradually pour pure water into the mixing barrel. This process is to add water while stirring until the gypsum powder and bamboo charcoal powder are mixed with pure water without particle agglomeration and have good fluidity, then stop adding pure water and stirring, and you can get gypsum slurry; S2. Functional raw material mixing Add all the activated carbon, silica sol, zinc oxide, catalyst, silica fume, calcium silicate, polyester fiber, silver ions and zinc ions to the gypsum slurry in S1 in sequence, stir at a speed of 500-1000r / min after adding each raw material, and stop stirring until all the raw materials are stirred evenly, so as to obtain functional gypsum slurry; S3. Viscosity adjustment Add all the anti-cracking agents to the functional gypsum slurry finally obtained in S2, and stir at a speed of 200-500r / min until it is evenly stirred and then stop stirring, then add the thickener and dispersant to the slurry in sequence and gradually, and stir at a speed of 200-400r / min until the slurry is adjusted to the required viscosity and dispersibility, then stop adding the thickener and dispersant, and you can get the ideal gypsum slurry; S4. Final stirring Pour all the gypsum slurry obtained in S3 into a dry stirrer and stir at a speed of 800-1600 r / min. Continue stirring for 8-15 minutes and then stop stirring. S5. Molding Pour the gypsum slurry after the final stirring of S4 into the mold, then tap the mold gently with a rubber hammer to break the bubbles in the gypsum slurry by tapping and vibration, and finally compact the gypsum slurry. After compaction and molding, let the gypsum board solidify naturally in the mold for 10-30 minutes and then slowly demould it; S6. Drying Place the S5 demoulded gypsum board into the dryer and dry it at a temperature of 20-30℃ to promote the gradual volatilization and discharge of moisture inside the gypsum board. Take it out after the gypsum board is completely cured and dried. You can get the anti-deformation gypsum board with formaldehyde purification effect. Finally, package it and store it in a dry and ventilated place.