CN112342838A - Process for preparing liquid titanium dioxide for producing decorative base paper - Google Patents
Process for preparing liquid titanium dioxide for producing decorative base paper Download PDFInfo
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- CN112342838A CN112342838A CN202011235054.8A CN202011235054A CN112342838A CN 112342838 A CN112342838 A CN 112342838A CN 202011235054 A CN202011235054 A CN 202011235054A CN 112342838 A CN112342838 A CN 112342838A
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/02—Patterned paper
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/69—Water-insoluble compounds, e.g. fillers, pigments modified, e.g. by association with other compositions prior to incorporation in the pulp or paper
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/143—Agents preventing ageing of paper, e.g. radiation absorbing substances
Abstract
The invention provides a manufacturing process of liquid titanium dioxide for producing decorative base paper, belonging to the technical field of titanium dioxide preparation. The manufacturing process of the liquid titanium dioxide for producing the decorative base paper comprises the following components: titanium dioxide, ionized water, an organic dispersant, a coating agent, a stabilizer, a defoaming agent and a ph regulator; the preparation process of the liquid titanium dioxide comprises the following steps: grinding titanium dioxide to be nano-scale, adding a coating agent in the grinding process, and grinding for 2-20 hours to prepare a pressed powder; and dispersing the ground pressed powder mixed with the organic dispersing agent into the ionized water. According to the invention, the titanium dioxide is dissolved in the ionized water to form the liquid titanium dioxide, and the ph value of the liquid titanium dioxide is adjusted by adding the ph regulator into the liquid titanium dioxide, so that the liquid titanium dioxide is neutral, and the possibility of influence of the liquid titanium dioxide on the ph value of the decorative base paper can be reduced when the liquid titanium dioxide is used for producing the decorative base paper.
Description
Technical Field
The invention relates to the field of titanium dioxide preparation, in particular to a process for preparing liquid titanium dioxide for producing decorative base paper.
Background
The decorative paper is originally an indispensable raw material in many building material products, such as low-pressure plates and high-pressure plates used for furniture and cabinets, and also fireproof plates, floors and the like. The decorative paper is placed under the surface paper in the product structure, and mainly plays the roles of providing decoration of patterns and covering for preventing the seepage of bottom glue solution. This layer requires paper with good hiding power, impregnation and printing properties. The decorative paper requires smooth surface, good absorptivity and adaptability, even hue required by ground color and bright color required by color.
In the production process of the decorative base paper, titanium dioxide is usually added, and the sun-proof and fade-proof performances of the produced decorative base paper are improved by utilizing the high covering power, high color reducing power and pigment performance of the titanium dioxide, and the titanium dioxide is not convenient for mixing with other elements in the decorative base paper, so that the titanium dioxide needs to be processed into liquid and then mixed with other elements in the decorative base paper.
Disclosure of Invention
In order to make up for the defects, the invention provides a process for preparing liquid titanium dioxide for producing decorative base paper, aiming at solving the problem that the pH value of the liquid titanium dioxide prepared by the traditional preparation process is unstable.
The invention is realized by the following steps:
the invention provides a process for preparing liquid titanium dioxide for producing decorative base paper, which comprises the following components: titanium dioxide, ionized water, an organic dispersant, a coating agent, a stabilizer, a defoaming agent and a ph regulator;
the preparation process of the liquid titanium dioxide comprises the following steps:
the method comprises the following steps: grinding titanium dioxide to be nano-scale, adding a coating agent in the grinding process, and grinding for 2-20 hours to prepare a pressed powder;
step two: dispersing the powder cake ground in the step one and an organic dispersing agent into ionic water, and adding a stabilizing agent and a defoaming agent into the ionic water to dissolve the powder cake into the ionic water to form a nano-scale mixed solution;
step three: heating the nanoscale mixed solution formed in the step two to 50-85 ℃, keeping the temperature constant, and then continuously grinding for 5-10 hours to fully dissolve the powder cake in the ionized water to form liquid titanium dioxide;
step four: adding a ph regulator into the liquid titanium dioxide formed in the third step, regulating the ph value of the liquid titanium dioxide to 6-8, and filling.
In an embodiment of the invention, in the first step, a nano grinder is used to grind the titanium dioxide into chemical fiber-grade titanium dioxide, and the particle size of the chemical fiber-grade titanium dioxide is not greater than 50 nm.
In an embodiment of the invention, before the titanium dioxide is subjected to the grinding process in the first step, the titanium dioxide and the coating agent are stirred and mixed by a stirrer, and the mixing time is not less than 10 min.
In one embodiment of the invention, the coating agent is prepared from several of aluminum oxide, aluminum phosphate, aluminum sulfate, zirconium oxide and zirconium silicate in proportion.
In one embodiment of the present invention, the ionic water is stirred with a stirrer while the cake, the organic dispersant, the stabilizer, and the defoaming agent are added to the ionic water.
In one embodiment of the invention, the ionized water is subjected to filtration, reverse osmosis, and electrodeionization prior to use.
In one embodiment of the present invention, when the nanoscale mixed liquid is ground again, the temperature of the nanoscale mixed liquid during grinding is monitored and recorded in real time by a digital display thermometer.
In one embodiment of the invention, before the ph value of the liquid titanium dioxide is adjusted, the liquid titanium dioxide is placed in a shade and cooled to room temperature.
In one embodiment of the invention, when the pH value of the liquid titanium dioxide is adjusted, 10-15ml of liquid titanium dioxide samples are taken by using a test tube every 2-5min, and the pH value of the liquid titanium dioxide in the test tube is detected by using a pH value tester.
The invention has the beneficial effects that: the invention relates to a process for preparing liquid titanium dioxide for producing decorative base paper, which comprises the following steps: the liquid titanium dioxide is dissolved in the ionized water to form the liquid titanium dioxide, the ph value of the liquid titanium dioxide is adjusted by adding the ph regulator into the liquid titanium dioxide, so that the liquid titanium dioxide is neutral, when the liquid titanium dioxide is used for producing the decorative base paper, the possibility that the liquid titanium dioxide influences the ph value of the decorative base paper can be reduced, in addition, the liquid titanium dioxide is added, the sun-proof and fading-proof performance of the produced decorative base paper can be improved, and the quality of the decorative base paper is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is an SEM image of titanium dioxide;
FIG. 2 is a particle size diagram of titanium dioxide.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Example 1
The invention provides a process for preparing liquid titanium dioxide for producing decorative base paper, which comprises the following components: titanium white powder, ionized water, an organic dispersant, a coating agent, a stabilizer, a defoaming agent and a ph regulator, wherein the raw materials are selected according to the actual requirement in mass proportion when the materials are taken in the concrete implementation, and in the embodiment, the ratio of the titanium white powder to the ionized water to the organic dispersant to the coating agent to the stabilizer to the defoaming agent is 1: 3: 0.5: 0.1: 0.1, and the dosage of the pH value regulator is determined according to actual needs.
The preparation process of the liquid titanium dioxide comprises the following steps:
the method comprises the following steps: grinding titanium dioxide to be nano-scale, adding a coating agent in the grinding process, grinding for 2 hours to prepare a pressed powder, wherein in the grinding step, a three-roll grinder can be used for grinding the titanium dioxide, and the titanium dioxide and the coating agent can be mixed before grinding;
step two: dispersing the powder cake ground in the step one and an organic dispersing agent into ionic water, and adding a stabilizing agent and a defoaming agent into the ionic water to dissolve the powder cake into the ionic water to form a nanoscale mixed solution, wherein in specific implementation, the stabilizing agent is used for improving the stability of the nanoscale mixed solution, and the defoaming agent is used for reducing the possibility of foaming of the nanoscale mixed solution;
step three: heating the nanoscale mixed solution formed in the second step to 50 ℃, keeping the temperature constant, and then continuously grinding for 5 hours to ensure that the pressed powder is fully dissolved in the ionized water to form liquid titanium dioxide;
step four: and adding a ph regulator into the liquid titanium dioxide formed in the third step, regulating the ph value of the liquid titanium dioxide to 6, and then filling, wherein in the specific implementation, the liquid titanium dioxide is used for producing decorative base paper, the liquid titanium dioxide can be better mixed with other elements in the decorative base paper, the effect of the produced decorative base paper can be improved, in addition, in the processing and production processes of the decorative base paper, the liquid titanium dioxide is added, the sun-proof and fade-proof effects of the produced decorative base paper can be improved, the ph value of the liquid titanium dioxide is regulated, the possibility that the liquid titanium dioxide influences the ph value of the decorative base paper is reduced, and when the liquid titanium dioxide is filled, a liquid quantitative filling machine can be adopted for carrying out quantitative filling on the liquid titanium dioxide.
In this embodiment, in the first step, a nanometer grinder is used to grind titanium dioxide into chemical fiber-grade titanium dioxide, the particle size of the chemical fiber-grade titanium dioxide is not greater than 50nm, which is beneficial to subsequent processing of titanium dioxide and dissolution of titanium dioxide in ionized water; before the titanium dioxide is subjected to the grinding process in the first step, stirring and mixing the titanium dioxide and the coating agent by a stirrer, wherein the mixing time is not less than 10min, so that the mixing effect of the titanium dioxide and the coating agent is improved; the coating agent is prepared from a plurality of aluminum oxide, aluminum phosphate, aluminum sulfate, zirconium oxide and zirconium silicate in proportion; adding the powder cake, the organic dispersant stabilizer and the defoaming agent into the ionized water, and simultaneously stirring the ionized water by adopting a stirrer, wherein the stirrer can be a homogenizer, and the powder cake, the organic dispersant stabilizer and the defoaming agent are favorably dissolved in the ionized water by stirring the ionized water;
it can be understood that the ionized water is filtered, reverse osmosis and electrodeionization before use, and after the ionized water is treated by the steps, impurities in the ionized water can be removed, and the purity of the ionized water is improved; further, the preparation process of the deionized water comprises the following steps:
s1, the coarse filtration process comprises the following steps: injecting the ionized water into an activated carbon filter for rough filtration, and filtering out impurities in the ionized water;
s2, the fine filtering process comprises the following steps: enabling the roughly filtered ionized water to flow into a precision filter, and completely removing solid particles in the ionized water;
s3, the reverse osmosis process comprises the following steps: injecting the finely filtered ionized water into reverse osmosis equipment to purify the water and separate internal impurities;
s4, the electrodeionization process comprises the following steps: impurities in the form of ions in the water are removed to form pure water.
When the nanoscale mixed liquid is ground again, the temperature of the nanoscale mixed liquid during grinding is monitored and recorded in real time through a digital display thermometer, so that an operator can know the temperature of the nanoscale mixed liquid during grinding in time; before the pH value of the liquid titanium dioxide is adjusted, the liquid titanium dioxide is placed in a shade place to be cooled to room temperature, so that the possibility that the pH value of the liquid titanium dioxide fluctuates due to temperature factors is reduced; when the pH value of the liquid titanium dioxide is adjusted, 10-15ml of liquid titanium dioxide samples are taken by using the test tube every 2-5min, and the pH value of the liquid titanium dioxide in the test tube is detected by using a pH value tester, so that an operator can monitor the pH value of the liquid titanium dioxide.
Example 2
The invention provides a process for preparing liquid titanium dioxide for producing decorative base paper, which comprises the following components: titanium white powder, ionized water, an organic dispersant, a coating agent, a stabilizer, a defoaming agent and a ph regulator, wherein the raw materials are selected according to the actual requirement in mass proportion when the materials are taken in the concrete implementation, and in the embodiment, the ratio of the titanium white powder to the ionized water to the organic dispersant to the coating agent to the stabilizer to the defoaming agent is 1: 3: 0.5: 0.1: 0.1, and the dosage of the pH value regulator is determined according to actual needs.
The preparation process of the liquid titanium dioxide comprises the following steps:
the method comprises the following steps: grinding titanium dioxide to be nano-scale, adding a coating agent in the grinding process, grinding for 11 hours to prepare a pressed powder, wherein in the grinding step, a three-roll grinder can be used for grinding the titanium dioxide, and the titanium dioxide and the coating agent can be mixed before grinding;
step two: dispersing the powder cake ground in the step one and an organic dispersing agent into ionic water, and adding a stabilizing agent and a defoaming agent into the ionic water to dissolve the powder cake into the ionic water to form a nanoscale mixed solution, wherein in specific implementation, the stabilizing agent is used for improving the stability of the nanoscale mixed solution, and the defoaming agent is used for reducing the possibility of foaming of the nanoscale mixed solution;
step three: heating the nanoscale mixed solution formed in the step two to 67 ℃, keeping the temperature constant, and then continuously grinding for 7.5 hours to ensure that the pressed powder is fully dissolved in the ionized water to form liquid titanium dioxide;
step four: and adding a ph regulator into the liquid titanium dioxide formed in the third step, regulating the ph value of the liquid titanium dioxide to 7, and then filling, wherein in the specific implementation, the liquid titanium dioxide is used for producing decorative base paper, the liquid titanium dioxide can be better mixed with other elements in the decorative base paper, the effect of the produced decorative base paper can be improved, in addition, in the processing and production processes of the decorative base paper, the liquid titanium dioxide is added, the sun-proof and fade-proof effects of the produced decorative base paper can be improved, the ph value of the liquid titanium dioxide is regulated, the possibility that the liquid titanium dioxide influences the ph value of the decorative base paper is reduced, and when the liquid titanium dioxide is filled, a liquid quantitative filling machine can be adopted for carrying out quantitative filling on the liquid titanium dioxide.
In this embodiment, in the first step, a nanometer grinder is used to grind titanium dioxide into chemical fiber-grade titanium dioxide, the particle size of the chemical fiber-grade titanium dioxide is not greater than 50nm, which is beneficial to subsequent processing of titanium dioxide and dissolution of titanium dioxide in ionized water; before the titanium dioxide is subjected to the grinding process in the first step, stirring and mixing the titanium dioxide and the coating agent by a stirrer, wherein the mixing time is not less than 10min, so that the mixing effect of the titanium dioxide and the coating agent is improved; the coating agent is prepared from a plurality of aluminum oxide, aluminum phosphate, aluminum sulfate, zirconium oxide and zirconium silicate in proportion; adding the powder cake, the organic dispersant stabilizer and the defoaming agent into the ionized water, and simultaneously stirring the ionized water by adopting a stirrer, wherein the stirrer can be a homogenizer, and the powder cake, the organic dispersant stabilizer and the defoaming agent are favorably dissolved in the ionized water by stirring the ionized water;
it can be understood that the ionized water is filtered, reverse osmosis and electrodeionization before use, and after the ionized water is treated by the steps, impurities in the ionized water can be removed, and the purity of the ionized water is improved; further, the preparation process of the deionized water comprises the following steps:
s1, the coarse filtration process comprises the following steps: injecting the ionized water into an activated carbon filter for rough filtration, and filtering out impurities in the ionized water;
s2, the fine filtering process comprises the following steps: enabling the roughly filtered ionized water to flow into a precision filter, and completely removing solid particles in the ionized water;
s3, the reverse osmosis process comprises the following steps: injecting the finely filtered ionized water into reverse osmosis equipment to purify the water and separate internal impurities;
s4, the electrodeionization process comprises the following steps: impurities in the form of ions in the water are removed to form pure water.
When the nanoscale mixed liquid is ground again, the temperature of the nanoscale mixed liquid during grinding is monitored and recorded in real time through a digital display thermometer, so that an operator can know the temperature of the nanoscale mixed liquid during grinding in time; before the pH value of the liquid titanium dioxide is adjusted, the liquid titanium dioxide is placed in a shade place to be cooled to room temperature, so that the possibility that the pH value of the liquid titanium dioxide fluctuates due to temperature factors is reduced; when the pH value of the liquid titanium dioxide is adjusted, 10-15ml of liquid titanium dioxide samples are taken by using the test tube every 2-5min, and the pH value of the liquid titanium dioxide in the test tube is detected by using a pH value tester, so that an operator can monitor the pH value of the liquid titanium dioxide.
Example 3
The invention provides a process for preparing liquid titanium dioxide for producing decorative base paper, which comprises the following components: titanium white powder, ionized water, an organic dispersant, a coating agent, a stabilizer, a defoaming agent and a ph regulator, wherein the raw materials are selected according to the actual requirement in mass proportion when the materials are taken in the concrete implementation, and in the embodiment, the ratio of the titanium white powder to the ionized water to the organic dispersant to the coating agent to the stabilizer to the defoaming agent is 1: 3: 0.5: 0.1: 0.1, and the dosage of the pH value regulator is determined according to actual needs.
The preparation process of the liquid titanium dioxide comprises the following steps:
the method comprises the following steps: grinding titanium dioxide to be nano-scale, adding a coating agent in the grinding process, grinding for 20 hours to prepare a pressed powder, wherein in the grinding step, a three-roll grinder can be used for grinding the titanium dioxide, and the titanium dioxide and the coating agent can be mixed before grinding;
step two: dispersing the powder cake ground in the step one and an organic dispersing agent into ionic water, and adding a stabilizing agent and a defoaming agent into the ionic water to dissolve the powder cake into the ionic water to form a nanoscale mixed solution, wherein in specific implementation, the stabilizing agent is used for improving the stability of the nanoscale mixed solution, and the defoaming agent is used for reducing the possibility of foaming of the nanoscale mixed solution;
step three: heating the nanoscale mixed solution formed in the second step to 85 ℃, keeping the temperature constant, and then continuously grinding for 10 hours to ensure that the pressed powder is fully dissolved in the ionized water to form liquid titanium dioxide;
step four: and adding a ph regulator into the liquid titanium dioxide formed in the third step, regulating the ph value of the liquid titanium dioxide to 8, and then filling, wherein in the specific implementation, the liquid titanium dioxide is used for producing decorative base paper, the liquid titanium dioxide can be better mixed with other elements in the decorative base paper, the effect of the produced decorative base paper can be improved, in addition, in the processing and production processes of the decorative base paper, the liquid titanium dioxide is added, the sun-proof and fade-proof effects of the produced decorative base paper can be improved, the ph value of the liquid titanium dioxide is regulated, the possibility that the liquid titanium dioxide influences the ph value of the decorative base paper is reduced, and when the liquid titanium dioxide is filled, a liquid quantitative filling machine can be adopted for carrying out quantitative filling on the liquid titanium dioxide.
In this embodiment, in the first step, a nanometer grinder is used to grind titanium dioxide into chemical fiber-grade titanium dioxide, the particle size of the chemical fiber-grade titanium dioxide is not greater than 50nm, which is beneficial to subsequent processing of titanium dioxide and dissolution of titanium dioxide in ionized water; before the titanium dioxide is subjected to the grinding process in the first step, stirring and mixing the titanium dioxide and the coating agent by a stirrer, wherein the mixing time is not less than 10min, so that the mixing effect of the titanium dioxide and the coating agent is improved; the coating agent is prepared from a plurality of aluminum oxide, aluminum phosphate, aluminum sulfate, zirconium oxide and zirconium silicate in proportion; adding the powder cake, the organic dispersant stabilizer and the defoaming agent into the ionized water, and simultaneously stirring the ionized water by adopting a stirrer, wherein the stirrer can be a homogenizer, and the powder cake, the organic dispersant stabilizer and the defoaming agent are favorably dissolved in the ionized water by stirring the ionized water;
it can be understood that the ionized water is filtered, reverse osmosis and electrodeionization before use, and after the ionized water is treated by the steps, impurities in the ionized water can be removed, and the purity of the ionized water is improved; further, the preparation process of the deionized water comprises the following steps:
s1, the coarse filtration process comprises the following steps: injecting the ionized water into an activated carbon filter for rough filtration, and filtering out impurities in the ionized water;
s2, the fine filtering process comprises the following steps: enabling the roughly filtered ionized water to flow into a precision filter, and completely removing solid particles in the ionized water;
s3, the reverse osmosis process comprises the following steps: injecting the finely filtered ionized water into reverse osmosis equipment to purify the water and separate internal impurities;
s4, the electrodeionization process comprises the following steps: impurities in the form of ions in the water are removed to form pure water.
When the nanoscale mixed liquid is ground again, the temperature of the nanoscale mixed liquid during grinding is monitored and recorded in real time through a digital display thermometer, so that an operator can know the temperature of the nanoscale mixed liquid during grinding in time; before the pH value of the liquid titanium dioxide is adjusted, the liquid titanium dioxide is placed in a shade place to be cooled to room temperature, so that the possibility that the pH value of the liquid titanium dioxide fluctuates due to temperature factors is reduced; when the pH value of the liquid titanium dioxide is adjusted, 10-15ml of liquid titanium dioxide samples are taken by using the test tube every 2-5min, and the pH value of the liquid titanium dioxide in the test tube is detected by using a pH value tester, so that an operator can monitor the pH value of the liquid titanium dioxide.
Characterization results
1. Micro-topography testing
Fig. 1 is a diagram of SEM of finished titanium white, wherein fig. 1 is SEM diagrams under 20nm and 5nm, and in combination with fig. 1, the finished titanium white is wrapped with metal salt, so that the finished titanium white has good compatibility with ionized water, and the problem that nano products are easy to agglomerate in water is solved.
2. Particle size test
Wherein, fig. 2 is a particle size test chart after grinding titanium dioxide, and it can be clearly seen that the particle size of titanium dioxide changes before and after rough grinding and refined grinding.
In conclusion, the manufacturing process of the liquid titanium dioxide for producing the decorative base paper comprises the following steps: the titanium dioxide is dissolved in the ionized water and is supplemented with the organic dispersant, the coating agent, the stabilizer and the defoamer to form liquid titanium dioxide, and the ph value is adjusted by adding the ph regulator into the liquid titanium dioxide, so that the liquid titanium dioxide is neutral, and when the liquid titanium dioxide is used for producing the decorative base paper, the possibility of the liquid titanium dioxide influencing the ph value of the decorative base paper can be reduced.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The manufacturing process of the liquid titanium dioxide for producing the decorative base paper is characterized in that,
the liquid titanium dioxide comprises the following components: titanium dioxide, ionized water, an organic dispersant, a coating agent, a stabilizer, a defoaming agent and a ph regulator;
the preparation process of the liquid titanium dioxide comprises the following steps:
the method comprises the following steps: grinding titanium dioxide to be nano-scale, adding a coating agent in the grinding process, and grinding for 2-20 hours to prepare a pressed powder;
step two: dispersing the powder cake ground in the step one and an organic dispersing agent into ionic water, and adding a stabilizing agent and a defoaming agent into the ionic water to dissolve the powder cake into the ionic water to form a nano-scale mixed solution;
step three: heating the nanoscale mixed solution formed in the step two to 50-85 ℃, keeping the temperature constant, and then continuously grinding for 5-10 hours to fully dissolve the powder cake in the ionized water to form liquid titanium dioxide;
step four: adding a ph regulator into the liquid titanium dioxide formed in the third step, regulating the ph value of the liquid titanium dioxide to 6-8, and filling.
2. The process for preparing liquid titanium dioxide for producing decorative base paper according to claim 1, wherein in the first step, a nano grinder is used to grind titanium dioxide into chemical fiber-grade titanium dioxide, and the particle size of the chemical fiber-grade titanium dioxide is not greater than 50 nm.
3. The process for preparing the liquid titanium dioxide for producing the decorative base paper according to claim 1, wherein the titanium dioxide and the coating agent are stirred and mixed by a stirrer for not less than 10min before the grinding process of the first step.
4. The process for manufacturing the liquid titanium dioxide for producing the decorative base paper according to claim 1, wherein the coating agent is prepared from several of aluminum oxide, aluminum phosphate, aluminum sulfate, zirconium oxide and zirconium silicate according to a proportion.
5. The process for producing liquid titanium dioxide for decorative base paper production according to claim 1, wherein the ionic water is stirred by a stirrer while the pressed powder, the organic dispersant, the stabilizer and the defoamer are added to the ionic water.
6. The process for manufacturing the liquid titanium dioxide for producing the decorative base paper according to claim 1, wherein the ionized water is subjected to filtration, reverse osmosis and electrodeionization before use.
7. The process for preparing liquid titanium dioxide for the production of decorative base paper according to claim 1, wherein the temperature of the nano-mixed liquid during the grinding is monitored and recorded in real time by a digital thermometer when the nano-mixed liquid is ground again.
8. The process for manufacturing the liquid titanium dioxide for the production of the decorative base paper according to claim 1, wherein the liquid titanium dioxide is cooled to room temperature in a shade before the ph value of the liquid titanium dioxide is adjusted.
9. The process for manufacturing the liquid titanium dioxide for the production of the decorative base paper according to claim 1, wherein when the ph value of the liquid titanium dioxide is adjusted, 10 to 15ml of liquid titanium dioxide samples are taken by using a test tube every 2 to 5min, and a ph tester is used for performing ph detection on the liquid titanium dioxide in the test tube.
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| CN202011235054.8A CN112342838A (en) | 2020-11-08 | 2020-11-08 | Process for preparing liquid titanium dioxide for producing decorative base paper |
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| CN202011235054.8A Pending CN112342838A (en) | 2020-11-08 | 2020-11-08 | Process for preparing liquid titanium dioxide for producing decorative base paper |
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| CN113957741A (en) * | 2021-11-08 | 2022-01-21 | 浙江科技学院 | Titanium composite material and application thereof in preparation of base paper |
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