CN115849770A - Production and processing technique of mineral wool board with formaldehyde purification effect - Google Patents
Production and processing technique of mineral wool board with formaldehyde purification effect Download PDFInfo
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Abstract
The invention discloses a production and processing process method of a mineral wool board with formaldehyde purification effect, which comprises the steps of stirring and pulping mineral wool, edible corn starch, perlite and waste newspaper in corresponding parts by weight respectively, then mixing and stirring uniformly, dehydrating and forming the mixed slurry, drying, cutting and sanding, performing bottom coating on the back surface of the obtained mineral wool board, spraying formaldehyde purification coating on the front surface after drying the back surface, spraying for two times, drying after the first spraying, performing second weaving and spraying, drying the front surface, taking out the mineral wool board, and cooling. The front surface of the mineral wool board is sprayed with the formaldehyde purifying coating, and the spraying operation is double, so that the sprayed formaldehyde purifying coating is more uniform, the effect of relieving and purifying formaldehyde is ensured, the mineral wool board also has the functions of mildew resistance and bacteria resistance, the versatility of the mineral wool board is improved, the performance of the mineral wool board is greatly improved, and the mineral wool board is more environment-friendly in use.
Description
Technical Field
The invention relates to the technical field of mineral wool board processing, and mainly relates to a production and processing method of a mineral wool board with formaldehyde purification effect.
Background
With the improvement of the quality of life of people, residents have new requirements on the sound absorption and decoration effects of home decoration, so that the mineral wool decorative plate becomes a popular material for home decoration of residents, and gradually enters families.
The mineral wool board is a decorative board made of mineral wool, has obvious sound absorption performance, and has other excellent performances such as fire resistance and heat insulation, and various exquisite patterns and designs can be processed on the surface due to low density, so that the mineral wool board has excellent decorative performance. The mineral wool is harmless to human bodies, and the waste mineral wool acoustic boards can be recycled as raw materials for cyclic utilization, so that the mineral wool acoustic boards are healthy, environment-friendly and recyclable green building materials.
In addition, the requirements of people for decorative materials are more and more diversified, users not only require the mineral wool board to have patterns and decorative effects with more changes, but also expect the mineral wool board to have more functions, such as sound absorption, fire prevention, heat insulation, better functions of resisting bacteria, preventing mildew, adjusting air humidity, emitting faint scent and the like, and particularly expect the mineral wool board to absorb harmful gas, so that the mineral wool board is an important development trend for multi-functionalization. However, no mineral wool board has the effect of alleviating and purifying formaldehyde, so that the mineral wool board with the effect of purifying and degrading formaldehyde is required to be provided.
The formaldehyde-resistant coating has the performance of purifying and degrading formaldehyde, effectively reduces the pollution of indoor air, can protect the living environment, is an environment-friendly coating, and is environment-friendly and nontoxic.
Disclosure of Invention
The invention provides a production and processing method of a mineral wool board with formaldehyde purification effect, aiming at making up the defects of the prior art.
The invention is realized by the following technical scheme:
a production and processing method of mineral wool boards with formaldehyde purification effect comprises the following steps:
(1) Weighing the following raw materials in parts by weight: 1550-1650 parts of mineral wool, 300-350 parts of edible corn starch, 30-80 parts of waste newspaper, 1150-1250 parts of perlite, a proper amount of water and a proper amount of formaldehyde-purifying coating;
(2) The processing technology of the formaldehyde-purifying coating comprises the following steps:
2a: weighing the following raw materials in parts by weight: 1.3-1.5 parts of thickening agent, 3-5 parts of suspending agent, 1.4-1.6 parts of NC dispersing agent, 0.9-1.1 parts of multifunctional auxiliary agent, 5-6 parts of SN-5040 dispersing agent, 49-51 parts of RCL595 titanium dioxide, 49-51 parts of ZR940 titanium dioxide, 49-51 parts of aluminum hydroxide, 374-376 parts of heavy calcium powder, 0.9-1.1 parts of mineral oil defoaming agent, 129-131 parts of aldehyde-removing emulsion, 1.4-1.6 parts of mildew inhibitor, 1.4-1.6 parts of bactericide, 7-9 parts of film-forming auxiliary agent, 1.4-1.6 parts of defoaming agent and a proper amount of water;
2b: putting a proper amount of water into a non-polar high-speed dispersion kettle, starting a high-speed dispersion machine at a high-speed rotation speed of about 1200 r/min, and then sequentially adding the thickening agent and the suspending agent in corresponding parts by mass, and dispersing at a high speed for 5-6 minutes; then adding the NC dispersing agent and the multifunctional auxiliary agent in corresponding parts by weight for high-speed dispersion for 10-11 minutes; sequentially adding SN-5040 dispersing agent, RCL595 titanium dioxide, ZR940 titanium dioxide, aluminum hydroxide and coarse whiting powder in corresponding mass parts, dispersing for 15-16 minutes at high speed, adding mineral oil defoaming agent, and dispersing for 25-26 minutes at high speed after adding;
2c: finally, the formaldehyde-removing emulsion is put into the reactor and stirred for 5 minutes at a slow speed, wherein the slow speed is 400 revolutions per minute; then adding the mildew preventive, the bactericide and the film forming auxiliary agent, and slowly stirring for 2-3 minutes; then adding a defoaming agent and a small amount of water, slowly stirring for 10-11 minutes, stirring for defoaming, and after stirring uniformly, closing a machine for natural cooling;
2d: filtering the cooled material by a filter screen to obtain the purified formaldehyde coating;
(3) Putting the mineral wool with the corresponding mass part in the step (1) into a stirring pool, stirring and dispersing at a high speed for 9-11 minutes to form paste, wherein the rotating speed of the stirring pool is about 1200 revolutions per minute, pumping the paste mineral wool into a standby stirring tank by using a pump, wherein the stirring tank is in a slow stirring state, and the stirring speed of the stirring tank is about 400 revolutions per minute;
(4) Putting the edible corn starch in the corresponding mass portion in the step (1) into a stirring tank, stirring and dispersing at a high speed for 4-6 minutes, wherein the rotating speed of the stirring tank is about 1200 r/min, and pumping into the stirring tank for standby in the step (3) when the starch is in a uniform paste state;
(5) Putting the perlite in the corresponding mass part in the step (1) into a stirring tank, stirring and dispersing at a high speed for 4-6 minutes, wherein the rotating speed of the stirring tank is about 1200 r/min, and pumping into a standby stirring tank in the step (3) when the starch is in a uniform paste state;
(6) Putting the waste newspaper in the corresponding mass part in the step (1) into a stirring pool, dispersing at a high speed for 9-11 minutes to form a uniform state, wherein the rotating speed of the stirring pool is about 1200 r/min, and pumping the uniform pasty waste newspaper into the standby stirring tank in the step (3) by using a pump;
(7) Mixing and stirring the materials obtained in the steps (3), (4), (5) and (6) in a standby stirring tank for 10-15 minutes, wherein the rotating speed of the stirring tank is about 1000 revolutions per minute, and the materials are uniformly stirred and kept in a slow stirring state for standby, and the slow stirring speed is about 300 revolutions per minute;
(8) Placing the slurry obtained in the step (7) into a forming line for dehydration, and forming into an ore cotton plate;
(9) Drying, namely putting the mineral wool board obtained in the step (7) into a drying line at 160-240 ℃ for drying water, drying for 2-3 hours at the temperature until the water content of the mineral wool board does not exceed 1.5%, finally adjusting and cooling, and taking out the mineral wool board for cooling when the temperature does not exceed 30 ℃;
(10) Cutting and sanding, sanding the surface of the cooled mineral wool board and cutting the cloth flat material;
(11) Performing primary coating on the back of the mineral wool board;
(12) The mineral wool board with the bottom-coated back surface enters a drying line, the back surface is dried in a drying oven at 220-240 ℃ for 4-6 minutes, and finally the mineral wool board is taken out after cooling and cooled at normal temperature;
(13) Spraying the purified formaldehyde paint obtained in the step (2) on the front surface of the mineral wool board; uniformly spraying for the first time, then putting the mixture on a drying line at 150-180 ℃, uniformly spraying for the second time after drying for 4-5 minutes, then putting the mixture on the drying line at 150-180 ℃ for drying for 5-6 minutes to dry the front surface, finally adjusting to reduce the temperature, taking out the mineral wool board, and cooling at normal temperature.
Preferably, the coarse whiting powder in the step (2) is 1250-mesh coarse whiting powder.
Preferably, the bottom coating on the back surface of the mineral wool board in the step (11) is in a roll coating mode.
Preferably, the material cooled in step (2) 2d is filtered through a 100 mesh filter screen.
Preferably, in the step (13), 500 g of the formaldehyde-purifying coating is sprayed on the front surface of the mineral wool board per square meter.
Preferably, in the step (2), hydroxyethyl cellulose is used as the thickening agent, and bentonite is used as the suspending agent.
The reason why the mineral oil defoaming agent and the defoaming agent are respectively added in the first time and the last time in the step (2) is that the machine state is high-speed dispersion after the mineral oil defoaming agent is added for the first time, tiny fine bubbles still exist in the coating during the high-speed dispersion, and the fine bubbles in the coating are completely eliminated only by adding the defoaming agent for the second time when the stirring state is changed to a low-speed stirring state after the high-speed dispersion is finished.
The reason for using two dispersants in step (2) of the present invention is that: the NC dispersing agent can improve the storage stability, has higher dispersing efficiency and improves the comprehensive performance of the coating; the SN-5040 dispersant is a surfactant, has wetting dispersion and improves the fluidity of the coating.
The two titanium dioxide powders are mixed in the step (2) of the invention because the color of the RCL595 titanium dioxide powder is more bright and has more covering power and stronger tinting strength than that of the ZR940 titanium dioxide powder.
The thickening agent in the invention adopts hydroxyethyl cellulose, which is one of thickening agents, and the thickening agent, namely the hydroxyethyl cellulose, has the characteristics of thickening, protective colloid, dispersion, film forming and the like.
The suspending agent adopts bentonite which has strong water absorption, cation exchange capacity, expansibility, plasticity and binding capacity. After being wetted by water, the water is not only adsorbed on the particle surface, but also enters into the crystal layers to form colloidal particles, the carrier liquid becomes colloidal solution, and the bentonite particles form a space network structure in the colloidal solution, so that the bentonite slurry has a yield value, and the refractory filler particles are not easy to sink.
The raw materials used by the formaldehyde purifying coating prepared in the step (2) are environment-friendly, harmless to human bodies and high in performance, not only have the effect of purifying formaldehyde, but also have efficient mildew-proof and antibacterial functions.
According to the invention, the back surface of the mineral wool board is coated with the bottom coat, and the front surface of the mineral wool board is sprayed with the formaldehyde purifying coating, so that the performance and the surface appearance of the mineral wool board are better improved, the damp-proof and fireproof performance of the mineral wool board is effectively improved, the formaldehyde purifying effect is relieved, and the mineral wool board also has the mildew-proof and antibacterial functions.
The back surface of the mineral wool board is firstly subjected to primary coating, and the primary coating is dried and then the front surface is sprayed with the formaldehyde purifying coating, so that the coating on the two surfaces is uniformly coated, the drying effect is good in the drying operation, and the drying effect cannot be influenced by the simultaneous drying of the coating on the two surfaces; in addition, the formaldehyde-purifying coating is sprayed twice in sequence when the front surface is sprayed, the formaldehyde-purifying coating is sprayed more uniformly by double coating treatment, and the effect of relieving and purifying formaldehyde is ensured.
The invention has the advantages that:
the invention relates to a method for spraying formaldehyde-purifying paint on the front surface of a mineral wool board, which aims to ensure that the mineral wool board has the effect of relieving and purifying formaldehyde and also has the functions of mildew prevention and bacteria resistance; the use is more environment-friendly; through double spraying operations, the sprayed formaldehyde-purifying coating is more uniform, and the performance of the mineral wool board is greatly improved; when the processing technology is used for processing, the operation steps and the temperature conditions are strictly controlled, and the processing efficiency of the whole processing technology is improved; the use environmental protection performance is high.
Drawings
FIG. 1 is a flow chart of the processing technique of the mineral wool board of the invention.
Detailed Description
Referring to fig. 1, the present invention will be described in further detail with reference to specific embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
A production and processing method of mineral wool boards with formaldehyde purification effect comprises the following steps:
(1) Weighing the following raw materials in parts by weight: 1600 parts of mineral wool, 325 parts of edible corn starch, 50 parts of waste newspaper, 1200 parts of perlite, a proper amount of water and a proper amount of formaldehyde purifying paint;
(2) The processing technology of the formaldehyde-purifying coating comprises the following steps:
2a: weighing the following raw materials in parts by weight: 1.4 parts of thickening agent, 4 parts of suspending agent, 1.5 parts of NC dispersing agent, 1 part of multifunctional auxiliary agent, 5 parts of SN-5040 dispersing agent, 50 parts of RCL595 titanium dioxide, 50 parts of ZR940 titanium dioxide, 50 parts of aluminum hydroxide, 373-377 parts of 1250-mesh heavy calcium powder, 1 part of mineral oil defoaming agent, 130 parts of aldehyde-removing emulsion, 1.5 parts of mildew preventive, 1.5 parts of bactericide, 8 parts of film-forming auxiliary agent, 1.5 parts of defoaming agent and a proper amount of water;
2b: putting a proper amount of water into a non-polar high-speed dispersion kettle, starting a high-speed dispersion machine at a high-speed rotating speed of about 1200 r/min, then sequentially adding the thickening agent and the suspending agent in corresponding parts by mass, and dispersing at a high speed for 5 minutes; then adding the NC dispersing agent and the multifunctional auxiliary agent in corresponding parts by weight for high-speed dispersion for 10 minutes; sequentially adding SN-5040 dispersing agent, RCL595 titanium dioxide, ZR940 titanium dioxide, aluminum hydroxide and 1250-mesh coarse whiting powder in corresponding mass parts, dispersing for 15 minutes at high speed, adding mineral oil defoaming agent, and dispersing for 25-26 minutes at high speed after adding;
2c: finally, adding the formaldehyde-removing emulsion, and stirring at a low speed of 400 revolutions per minute for 5 minutes; then adding the mildew inhibitor, the bactericide and the alcohol ester twelve film-forming additives, and slowly stirring for 2 minutes; then adding a defoaming agent and a small amount of water, slowly stirring for 10 minutes, stirring for defoaming, and after stirring uniformly, closing a machine for natural cooling;
2d: filtering the cooled material through a 100-mesh filter screen to obtain the purified formaldehyde coating;
(3) Putting the mineral wool with the corresponding mass part in the step (1) into a stirring pool, stirring and dispersing for 10 minutes at a high speed to form paste, wherein the rotating speed of the stirring pool is about 1200 revolutions per minute, pumping the paste mineral wool into a standby stirring tank by using a pump, wherein the stirring tank is in a slow stirring state, and the stirring speed of the stirring tank is about 400 revolutions per minute;
(4) Putting the edible corn starch in the corresponding mass part in the step (1) into a stirring pool, stirring and dispersing at a high speed for 5 minutes, wherein the rotating speed of the stirring pool is about 1200 r/min, and pumping the starch into the standby stirring tank in the step (3) when the starch is in a uniform paste state;
(5) Putting the perlite in the corresponding mass part in the step (1) into a stirring pool, stirring and dispersing at a high speed for 5 minutes, wherein the rotating speed of the stirring pool is about 1200 r/min, and pumping the starch into the stirring tank for standby in the step (3) when the starch is in a uniform paste state;
(6) Putting the waste newspaper in the corresponding mass part in the step (1) into a stirring pool, dispersing at a high speed for 10 minutes to form a uniform state, wherein the rotating speed of the stirring pool is about 1200 r/min, and pumping the uniform pasty waste newspaper into the standby stirring tank in the step (3) by using a pump;
(7) Mixing and stirring the materials in the standby stirring tank obtained in the steps (3), (4), (5) and (6) for 14 minutes, wherein the rotation speed of the stirring tank is about 1000 revolutions per minute, and after uniform stirring, keeping a slow stirring state for standby, wherein the slow stirring speed is about 300 revolutions per minute;
(8) Placing the slurry obtained in the step (7) into a forming line for dehydration, and forming into an ore cotton plate;
(9) Drying, namely putting the mineral wool board obtained in the step (7) on a drying line at 200 ℃ for drying moisture, drying for 2.5 hours at the temperature until the moisture content of the mineral wool board is not more than 1.5%, finally adjusting and cooling, and taking out the mineral wool board for cooling when the temperature is not more than 30 ℃;
(10) Cutting and sanding, sanding the surface of the cooled mineral wool board and cutting the cloth flat material;
(11) And performing bottom coating on the back surface of the mineral wool board in a rolling coating mode. (ii) a
(12) The mineral wool board with the bottom-coated back surface enters a drying line, the back surface is dried in a drying oven at 200 ℃ for 5 minutes, and finally the mineral wool board is cooled and taken out and cooled at normal temperature;
(13) Spraying the purified formaldehyde paint obtained in the step (2) on the front surface of the mineral wool board; uniformly spraying the mineral wool board firstly, then feeding the mineral wool board into a 170 ℃ drying line, uniformly spraying the mineral wool board secondly after drying for 5 minutes, then feeding the mineral wool board secondly into the 170 ℃ drying line, drying the mineral wool board for 6 minutes, finally adjusting the temperature, taking out the mineral wool board, and cooling the mineral wool board at normal temperature.
And (13) spraying 500 g of the purified formaldehyde coating per square meter of the front surface of the mineral wool board.
In operation, hydroxyethyl cellulose can be used as thickener, and bentonite can be used as suspending agent.
The present invention is illustrated by the detailed process flow of the present invention through the above examples, but the present invention is not limited to the above detailed process flow, which means that the present invention must not be implemented by the above detailed process flow. It should be understood by those skilled in the art that any modification of the present invention, equivalent substitutions of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention. That is, many changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles of the present invention.
Claims (6)
1. A production and processing technique method of mineral wool boards with formaldehyde purification effect is characterized by comprising the following steps:
(1) Weighing the following raw materials in parts by weight: 1550-1650 parts of mineral wool, 300-350 parts of edible corn starch, 30-80 parts of waste newspaper, 1150-1250 parts of perlite, a proper amount of water and a proper amount of formaldehyde purifying paint;
(2) The processing technology of the formaldehyde-purifying coating comprises the following steps:
2a: weighing the following raw materials in parts by weight: 1.3-1.5 parts of thickening agent, 3-5 parts of suspending agent, 1.4-1.6 parts of NC dispersing agent, 0.9-1.1 parts of multifunctional auxiliary agent, 5-6 parts of SN-5040 dispersing agent, 49-51 parts of RCL595 titanium dioxide, 49-51 parts of ZR940 titanium dioxide, 49-51 parts of aluminum hydroxide, 374-376 parts of heavy calcium powder, 0.9-1.1 parts of mineral oil defoaming agent, 129-131 parts of aldehyde-removing emulsion, 1.4-1.6 parts of mildew inhibitor, 1.4-1.6 parts of bactericide, 7-9 parts of film-forming auxiliary agent, 1.4-1.6 parts of defoaming agent and a proper amount of water;
2b: putting a proper amount of water into an electrodeless high-speed dispersion kettle, starting a high-speed dispersion machine at a high-speed rotation speed of about 1200 r/min, and then sequentially adding the thickening agent and the suspending agent in corresponding parts by mass, and dispersing at a high speed for 5-6 minutes; then adding the NC dispersing agent and the multifunctional auxiliary agent in corresponding parts by weight for high-speed dispersion for 10-11 minutes; sequentially adding SN-5040 dispersing agent, RCL595 titanium dioxide, ZR940 titanium dioxide, aluminum hydroxide and coarse whiting powder in corresponding mass parts, dispersing for 15-16 minutes at high speed, adding mineral oil defoaming agent, and dispersing for 25-26 minutes at high speed after adding;
2c: finally, the formaldehyde-removing emulsion is put into the reactor and stirred for 5 minutes at a slow speed, wherein the slow speed is 400 revolutions per minute; then adding the mildew preventive, the bactericide and the film forming auxiliary agent, and slowly stirring for 2-3 minutes; then adding a defoaming agent and a small amount of water, slowly stirring for 10-11 minutes, stirring for defoaming, and after stirring uniformly, closing a machine for natural cooling;
2d: filtering the cooled material by a filter screen to obtain the purified formaldehyde coating;
(3) Putting the mineral wool with the corresponding mass part in the step (1) into a stirring pool, stirring and dispersing at a high speed for 9-11 minutes to form paste, wherein the rotating speed of the stirring pool is about 1200 revolutions per minute, pumping the paste mineral wool into a standby stirring tank by using a pump, wherein the stirring tank is in a slow stirring state, and the stirring speed of the stirring tank is about 400 revolutions per minute;
(4) Putting the edible corn starch in the corresponding mass portion in the step (1) into a stirring tank, stirring and dispersing at a high speed for 4-6 minutes, wherein the rotating speed of the stirring tank is about 1200 r/min, and pumping into the stirring tank for standby in the step (3) when the starch is in a uniform paste state;
(5) Putting the perlite in the corresponding mass part in the step (1) into a stirring pool, stirring and dispersing at a high speed for 4-6 minutes, wherein the rotating speed of the stirring pool is about 1200 r/min, and pumping the starch into the standby stirring tank in the step (3) when the starch is in a uniform paste state;
(6) Putting the waste newspaper in the corresponding mass part in the step (1) into a stirring pool, dispersing at a high speed for 9-11 minutes to form a uniform state, wherein the rotating speed of the stirring pool is about 1200 r/min, and pumping the uniform pasty waste newspaper into the standby stirring tank in the step (3) by using a pump;
(7) Mixing and stirring the materials in the standby stirring tank obtained in the steps (3), (4), (5) and (6) for 10-15 minutes, wherein the rotation speed of the stirring tank is about 1000 revolutions per minute, and after uniform stirring, keeping a slow stirring state for standby, wherein the slow stirring speed is about 300 revolutions per minute;
(8) Placing the slurry obtained in the step (7) into a forming line for dehydration, and forming into an ore cotton plate;
(9) Drying, namely putting the mineral wool board obtained in the step (7) into a drying line at 160-240 ℃ for drying water, drying for 2-3 hours at the temperature until the water content of the mineral wool board does not exceed 1.5%, finally adjusting and cooling, and taking out the mineral wool board for cooling when the temperature does not exceed 30 ℃;
(10) Cutting and sanding, namely sanding the surface of the cooled mineral wool board and cutting the cloth flat material;
(11) Performing bottom coating on the back surface of the mineral wool board;
(12) The mineral wool board with the bottom-coated back surface enters a drying line, the back surface is dried in a drying oven at 220-240 ℃ for 4-6 minutes, and finally the mineral wool board is taken out after cooling and cooled at normal temperature;
(13) Spraying the purified formaldehyde paint obtained in the step (2) on the front surface of the mineral wool board; uniformly spraying for the first time, then putting the mixture on a drying line at 150-180 ℃, uniformly spraying for the second time after drying for 4-5 minutes, then putting the mixture on the drying line at 150-180 ℃ for drying for 5-6 minutes to dry the front surface, finally adjusting to reduce the temperature, taking out the mineral wool board, and cooling at normal temperature.
2. The production and processing method of the mineral wool board with formaldehyde purification effect according to claim 1, characterized in that: the coarse whiting powder in the step (2) is 1250-mesh coarse whiting powder.
3. The production and processing method of the mineral wool board with formaldehyde purification effect according to claim 1, characterized in that: and (3) in the step (11), the bottom coating on the back surface of the mineral wool board adopts a roll coating mode.
4. The production and processing method of the mineral wool board with formaldehyde purification effect according to claim 1, characterized in that: the material cooled in the step (2) 2d is filtered by a 100-mesh filter screen.
5. The production and processing method of the mineral wool board with formaldehyde purification effect according to claim 1, characterized in that: and (3) spraying 500 g of the purified formaldehyde coating per square meter of the front surface of the mineral wool board in the step (13).
6. The production and processing method of the mineral wool board with formaldehyde purification effect according to claim 1, characterized in that: in the step (2), hydroxyethyl cellulose is adopted as a thickening agent, and bentonite is adopted as a suspending agent.
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| CN202211465400.0A CN115849770A (en) | 2022-11-22 | 2022-11-22 | Production and processing technique of mineral wool board with formaldehyde purification effect |
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| CN202211465400.0A CN115849770A (en) | 2022-11-22 | 2022-11-22 | Production and processing technique of mineral wool board with formaldehyde purification effect |
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