Negative ion energy healthy decorative plate and processing technology thereof

Abstract

The invention relates to the technical field of building materials, in particular to a negative ion energy healthy decorative plate and a processing technology thereof. The negative ion energy healthy decorative plate comprises a forming base material and a silver-containing functional composite ion powder additive, the silver-containing functional composite ion powder additive is formed by compounding first inorganic ion powder and first biological ion powder, and the first inorganic ion powder has the function of exciting and releasing negative oxygen ions and is of a natural layered structure or is subjected to intercalation treatment; the first biological ion powder has the function of exciting and releasing negative oxygen ions and has the capacity of reducing silver ions into silver particles, and the silver particles contained in the silver-containing functional composite ion powder additive are generated by reducing the first biological ion powder into interlayer gaps of the first inorganic ion powder in situ. In the processing technology, the process slurry prepared from the antibacterial silver particles and the product are used as essential raw materials for subsequent decorative plate burdening, continuity and industrialization of preparation of the antibacterial silver particles and burdening and processing of the decorative plate are achieved for the first time, and the silver particles are dispersed more uniformly.

Description

[0001] This invention application is a divisional application of a patent application with the application date of June 5, 2024, entitled “A negative ion energy health decorative board and its processing technology” and application number 202410718922.X. Technical Field

[0002] The invention relates to the technical field of building materials, in particular to a negative ion energy health decorative board and a processing technology thereof. Background Art

[0003] Decorative panels are a type of building material, including cement, gypsum, and other products. Among them, negative ion energy and health decorative panels are currently popular. These panels are made from, for example, polycarboxylate cement, calcium sulfate cement, magnesia cement, or gypsum, containing a binder (mostly inorganic). During the production process, negative ion functional materials are added to the molding base to enhance the release of negative oxygen ions. Silver particles can also be added to enhance antibacterial properties.

[0004] Ionic powder additives used in negative ion energy and health decorative panels typically include tourmaline powder, hexacyclic stone powder, and graphene powder. While a few products on the market claim to be purely biological negative ion energy and health decorative panels, industry validation has shown that simply adding biological ionic powder additives to the molding base material is insufficient in terms of stimulating the release of negative oxygen ions, as well as improving the mechanical properties and quality of the decorative panels. Most technical specifications fail to meet market requirements. Furthermore, while some biological ionic powder additives claim to have antibacterial properties, their bactericidal capabilities are incomparable to those of established silver particles. For these reasons, there is a need to develop a new type of negative ion energy and health decorative panel, still using tourmaline powder, hexacyclic stone powder, or graphene powder as the base ionic powder additive, supplemented with biological ionic powder and antibacterial silver particles. However, the development of this new processing technology lacks prior experience, particularly in the production and extraction of silver particles and their dispersion within the molding base, which present new challenges. Summary of the Invention

[0005] In order to solve the problems raised in the background technology, the present invention provides a new negative ion energy health decorative board and its processing technology.

[0006] The technical solutions of the present invention are as follows:

[0007] A negative ion energy health decorative board comprises a molding base material and a silver-containing functional composite ion powder additive. The silver-containing functional composite ion powder additive is a composite of a first inorganic ion powder and a first biological ion powder. The first inorganic ion powder has the function of stimulating the release of negative oxygen ions and is a natural layered structure or has been intercalated. The first biological ion powder has the function of stimulating the release of negative oxygen ions and has the ability to reduce silver ions into silver particles. The silver particles contained in the silver-containing functional composite ion powder additive are generated by in-situ reduction of the first biological ion powder to the interlayer gaps of the first inorganic ion powder.

[0008] In the negative ion energy healthy decorative board as described above, the molding base material is selected from at least one of polycarboxylate cement material, calcium sulfate cement material, magnesia cement material and gypsum material.

[0009] In the negative ion energy health decorative board as described above, the first inorganic ion powder is a natural layered structure or intercalated tourmaline powder, hexacyclic stone powder, graphene powder or any combination thereof.

[0010] In the negative ion energy healthy decorative board as described above, the first biological ion powder raw material is taken from the stems or leaves of woody or herbaceous plants that have reducing properties for metal ions.

[0011] The present invention also provides a processing technology for a negative ion energy health decorative board, comprising the following steps:

[0012] Step 1, preparing a reaction solution containing a silver salt, a first inorganic ion powder, and a first biological ion powder, wherein the first inorganic ion powder has the function of stimulating the release of negative oxygen ions and has a natural layered structure or has been intercalated, and the first biological ion powder has the function of stimulating the release of negative oxygen ions and has the ability to reduce silver ions to silver particles;

[0013] Step 2: chemically reacting the reaction solution prepared in step 1 under stirring conditions, wherein the first biological ion powder in situ reduces the silver ions released from the silver salt to the interlayer gaps of the first inorganic ion powder to form silver particles, and the solution after the reaction is a first slurry;

[0014] Step 3: without extracting the reaction product from the first slurry obtained in step 2, directly mixing the molding base material of the decorative board with the first slurry obtained in step 2, and stirring to obtain a molding slurry;

[0015] Step 4: Casting the molding slurry obtained in step 3 to obtain a decorative board body blank, or using the molding slurry obtained in step 3 to make a composite layer on the decorative board body;

[0016] Step 5: post-processing the decorative board body blank or composite layer obtained in step 4 to obtain the final negative ion energy healthy decorative board product.

[0017] According to the processing technology of the negative ion energy health decorative board as described above, in step 1, the first inorganic ion powder is a natural layered structure or intercalated tourmaline powder, hexacyclic stone powder, graphene powder or any combination thereof, and the first biological ion powder raw material is taken from the stems or leaves of woody or herbaceous plants that have reducing properties to metal ions.

[0018] In the processing technology of the negative ion energy healthy decorative board as described above, in step 3, the molding base material raw material of the decorative board is used to form polycarboxylate cement, calcium sulfate cement, magnesia cement or gypsum material.

[0019] The processing technology of the negative ion energy healthy decorative board as described above further includes a step of sampling and detecting the reduction product between step 2 and step 3.

[0020] Preferably, the sampling and testing at least includes testing the size of silver particles.

[0021] The present invention also provides a method for regulating the size of silver particles in the processing technology of negative ion energy health decorative panels. The above-mentioned molding base material raw materials of the decorative panels are separately mixed and stirred into a premixed slurry. During the chemical reaction in step 2, A% of the premixed slurry is introduced into the reaction solution. In step 3, B% of the premixed slurry is mixed with the solution after the reaction is completed, and A% + B% = 100%.

[0022] The beneficial effects of the present invention are:

[0023] The present invention attempts for the first time to use a fast and low-cost process to manufacture a new type of negative ion energy health decorative board using tourmaline powder, hexacyclic stone powder, graphene powder and the like as basic ion powder additives supplemented with biological ion powder and antibacterial silver particles. The main processing technology is to select biological ion powder with the function of stimulating and releasing negative oxygen ions and the ability to reduce silver ions into silver particles as a natural reducing agent in the preparation of antibacterial silver particles, and to combine the layered structure selection or intercalation treatment of tourmaline powder, hexacyclic stone powder and graphene powder, so that the inorganic ion powder itself is used as a natural dispersant and carrier in the preparation of antibacterial silver particles, thereby directly eliminating the need for silver particles in conventional processes. After repeated filtration and washing, the process slurry and product of the antibacterial silver particle preparation are used as the indispensable raw materials for the subsequent decorative board ingredients, thus realizing the continuity and industrialization of the preparation of antibacterial silver particles and the ingredients and processing of decorative boards for the first time in the industry. Moreover, since the silver particles are directly generated by the in-situ reduction of biological ion powder to the interlayer gaps of inorganic ion powder, the dispersion of silver particles is achieved in the process of dispersing the inorganic ion powder, which also solves the industry problem of uniform dispersion when adding silver particles directly to the molding slurry of decorative boards. In the whole preparation process, the raw materials are easy to add, the proportions are flexibly adjusted, and the particle size of the silver particles can also be well controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] By reading the detailed description of the preferred embodiment below, the solutions and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only for illustrating the preferred embodiment and are not to be considered as limiting the present invention.

[0025] In the attached figure:

[0026] Figure 1 To improve the previous negative ion energy health decorative board processing process.

[0027] Figure 2 This is an improved process flow for processing negative ion energy healthy decorative panels.

[0028] Figure 3 This is a schematic diagram of the production system principle for processing the negative ion energy health decorative panels of the present invention.

[0029] Figure 4 This is a schematic diagram of the principle of silver particle size regulation in the processing of the negative ion energy health decorative board of the present invention.

[0030] The components represented by the reference numerals in the figure are:

[0031] ①: Reactor for preparing silver particles; ②: Reactor for preparing slurry for decorative panels; ③: Feeding port for raw materials for preparing silver particles; ④: Outlet for the first slurry; ⑤: Feeding port for raw materials for decorative panel slurry; ⑥: Outlet for decorative panel slurry. DETAILED DESCRIPTION

[0032] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. It should be noted that these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. The present disclosure can be implemented in various forms and should not be limited by the embodiments described herein.

[0033] Example 1

[0034] First, in an embodiment of the present invention, a new type of negative ion energy health decorative board is provided. This new type of negative ion energy health decorative board includes a molding base material and a silver-containing functional composite ion powder additive, wherein the silver-containing functional composite ion powder additive is a composite of a first inorganic ion powder and a first biological ion powder.

[0035] The ion powder additives used in negative ion energy health decorative board products are generally tourmaline powder, hexacyclic stone powder, graphene powder, etc. There are also a few products on the market that claim to be purely biological negative ion energy health decorative boards, but only adding biological ion powder additives to the molding base material has limitations in terms of stimulating the release of negative oxygen ions, as well as in the mechanical properties and quality of the decorative boards. In addition, although some biological ion powder additives claim to have antibacterial functions, their bactericidal ability is incomparable to that of mature silver particles. The new type of negative ion energy health decorative board provided in the above embodiment still uses tourmaline powder, hexacyclic stone powder or graphene powder as the basic ion powder additives, and on this basis, it is supplemented with biological ion powder and antibacterial silver particles to ensure a good balance of performance in all aspects.

[0036] As the second important aspect that distinguishes the new negative ion energy health decorative board of the present invention from current market products, the embodiments of the present invention provide a negative ion energy health decorative board with better functional ingredient dispersion effect, which is manifested in that: the first inorganic ion powder has the function of stimulating the release of negative oxygen ions and has a natural layered structure or has been intercalated, the first biological ion powder has the function of stimulating the release of negative oxygen ions and has the ability to reduce silver ions into silver particles, and the silver particles contained in the silver-containing functional composite ion powder additive are generated by in-situ reduction of the first biological ion powder to the interlayer gaps of the first inorganic ion powder.

[0037] In this embodiment, the molding base material is selected from at least one of polycarboxylate cement material, calcium sulfate cement material, magnesia cement material and gypsum material; the first inorganic ion powder is a natural layered structure or intercalated tourmaline powder, hexacyclic stone powder, graphene powder or any combination thereof; the first biological ion powder raw material is taken from the stems or leaves of woody or herbaceous plants that have reducing properties to metal ions.

[0038] Next, combine Figure 1 and Figure 2 The comparison can clearly show that the preparation of negative ion energy health decorative panels with better dispersion of the above functional components will benefit from the improvement of the following processing technology:

[0039] Step 1, such as Figure 2 As shown, a reaction solution containing a silver salt, a first inorganic ion powder, and a first bio-ion powder is prepared. The first inorganic ion powder has the function of stimulating the release of negative oxygen ions and has a natural layered structure or has been intercalated. The first bio-ion powder has the function of stimulating the release of negative oxygen ions and has the ability to reduce silver ions to silver particles. The first inorganic ion powder can be a natural layered structure or an intercalated tourmaline powder, hexacyclic stone powder, graphene powder, or any combination thereof. The raw material for the first bio-ion powder is the stems or leaves of woody or herbaceous plants that have the ability to reduce metal ions.

[0040] Step 2: The reaction solution prepared in step 1 is chemically reacted under stirring conditions, wherein the first biological ion powder in situ reduces the silver ions released from the silver salt to the interlayer gaps of the first inorganic ion powder to generate silver particles. The solution after the reaction is a first slurry.

[0041] See also Figure 3 , Figure 3 This is a schematic diagram of the production system principle for processing the negative ion energy health decorative board of the present invention. The preparation of the reaction solution in step 1 and the reduction reaction in step 2 can be performed in Figure 3 The silver particle preparation process is carried out in a silver particle preparation reactor ① in the system shown. The silver particle preparation reactor ① has a silver particle preparation raw material feeding port ③ and a first slurry outlet ④.

[0042] Step 3: In this step, the reaction product in the first slurry obtained in step 2 is not extracted. The molding base material of the decorative board is directly mixed with the first slurry obtained in step 2 and stirred to obtain a molding slurry.

[0043] This step can be Figure 3 The decoration board slurry preparation reaction kettle ② in the system shown is carried out. The decoration board slurry preparation reaction kettle ② has a decoration board slurry raw material feeding port ⑤ and a decoration board slurry discharge port ⑥.

[0044] from Figure 3 It can be seen that there is a control pipeline between the first slurry outlet ④ of the silver particle preparation reactor ① and the decorative board slurry raw material feeding port ⑤ of the decorative board slurry preparation reactor ②. The first slurry containing the process slurry for the preparation of antibacterial silver particles and the silver particle product discharged from the first slurry outlet ④ can be introduced into the decorative board slurry raw material feeding port ⑤ through the control pipeline, thereby directly providing raw materials to the decorative board slurry preparation reactor ②.

[0045] Figure 1The figure shows the process flow of negative ion energy health decorative board before improvement. Figure 1 In contrast, in the improved negative ion energy health decorative board processing process provided by this embodiment, by selecting biological ion powder with the function of stimulating the release of negative oxygen ions and the ability to reduce silver ions into silver particles as a natural reducing agent in the preparation of antibacterial silver particles, and by selecting or intercalating the layered structure of tourmaline powder, hexacyclic stone powder, and graphene powder, the inorganic ion powder itself is used as a natural dispersant and carrier in the preparation of antibacterial silver particles, thereby directly eliminating the need for Figure 1 The conventional process shown here requires repeated filtration and washing of the silver particles. The resulting slurry and the silver particle product (first slurry) are then used as essential raw materials for the subsequent decorative board formulation. This represents the first time in the industry that the continuity and industrialization of the preparation of antibacterial silver particles, decorative board formulation, and processing have been achieved. Furthermore, because the silver particles are directly generated by in-situ reduction of bio-ion powder into the interlayer spaces of inorganic ion powder, they are dispersed during the dispersion of the inorganic ion powder. This solves the industry's challenge of achieving uniform dispersion when adding silver particles directly to the forming slurry for decorative boards. Raw materials can be added easily and proportions can be adjusted flexibly throughout the entire preparation process.

[0046] In this embodiment, the molding base material of the decorative board is used to form polycarboxylate cement, calcium sulfate cement, magnesia cement or gypsum material. Particularly preferably, in addition to the necessary adhesive, the molding base material of the decorative board also contains at least one of pore-forming raw materials and reinforcing fibers.

[0047] In the following step 4, the molding slurry obtained in step 3 is cast to form a decorative panel blank. In some cases, the molding slurry obtained in step 3 may also be used to form a composite layer on the decorative panel. It should be noted that, whether preparing the decorative panel blank or forming the composite layer on the decorative panel, the overall weight proportion of the silver-containing functional composite ion powder additive should not exceed 50%, preferably less than 40%. The weight ratio of the first inorganic ion powder to the first biological ion powder is preferably in the range of 1:0.2-1.

[0048] Next, in step 5, the decorative board body blank or composite layer obtained in step 4 is dried, cured, and other post-processed to produce the final negative ion energy healthy decorative board product. This is the existing technology and will not be repeated here. The product's mechanical properties, flame retardant properties, negative ion induction amount, antibacterial ability, etc. are also tested and controlled according to existing standards.

[0049] Example 2

[0050] In the processing technology of the negative ion energy health decorative board provided in Example 1 of the present invention, the reduction product can be sampled and tested through the sampling port of the silver particle preparation reactor ① between step 2 and step 3 to obtain information such as the size, morphology, and distribution state of the silver particles, so as to adjust the reaction process at any time. When it is difficult to adjust the reaction process by the reduction reaction system itself due to the setting of the feed ratio of the equipment feed pump, such as Figure 4 As shown, it is also possible to introduce part of the materials in the decorative board slurry preparation reactor ② into the silver particle preparation reactor ① in advance through the decorative board slurry discharge port ⑥ and the silver particle preparation raw material feeding port ③, so as to utilize the physical dilution, reaction retardation, surface modification and other effects of the mixed slurry, inorganic gelling components, organic additives and the like in the decorative board molding base material raw materials to adjust the reaction process and achieve a certain advance mixing effect.

[0051] The adjustment of the reaction process during production is mainly to control the rapid aggregation and growth of silver particles so that the silver particles are at the nanometer level. Therefore, this embodiment can at least simultaneously provide a method for regulating the size of silver particles in the processing technology of negative ion energy health decorative panels. In this method, the raw materials of the molding base material of the decorative panel are separately mixed and stirred into a premixed slurry in the decorative panel slurry preparation reactor ②. During the chemical reaction in step 2, A% of the premixed slurry is introduced into the reaction solution. In step 3, B% of the premixed slurry is mixed with the solution after the reaction is completed, where A% + B% = 100%.

[0052] It should be noted that, since the addition of materials in the decorative board slurry preparation reactor ② also has a sequence, the A% premixed slurry and B% premixed slurry referred to here include premixed slurries with the same components but are not strictly limited to premixed slurries with the same components, that is, the components in the A% premixed slurry are allowed to be less than the components in the B% premixed slurry. For example, in the liquid phase component of the decorative board slurry, if there is one or some undesirable organic additive, it may become an unfavorable factor in the silver particle generation process. Therefore, in an optional scheme, the A% premixed slurry may not contain a certain organic additive, and only the B% premixed slurry may contain a certain organic additive.

[0053] Example 3

[0054] Using water as the solvent, a reaction solution containing AgNO3, intercalated tourmaline powder, and a powder made from a mixture of camphor tree stems and leaves is prepared. Each raw material is added proportionally to a silver particle preparation reactor (①) for a stirring reaction. The product is sampled and tested through a sampling port. When the silver nitrate concentration is adjusted between 0.001 mol / L and 0.1 mol / L, silver particles of varying sizes, ranging from an average particle size of approximately 20 nm to submicron, are dispersed in the intercalated tourmaline powder. Next, the entire process slurry and the silver particle product (first slurry) in the silver particle preparation reactor (①) are introduced from the first slurry outlet (④) into the decorative board slurry raw material feeding port (⑤) of the decorative board slurry preparation reactor (②). The polycarboxylate cement-based gelling powder is already stirred in advance in the decorative board slurry preparation reactor (②). After the first slurry is introduced, stirring is continued to obtain a shaped slurry. The shaped slurry is then layered on a prefabricated decorative board body to form a composite layer, which is then dried and cured.

[0055] Example 4

[0056] Using water as a solvent, a reaction solution containing AgNO3, intercalated hexacyclic stone powder, and powder made from Platycladus orientalis leaves is prepared. Each raw material is added to a silver particle preparation reactor ① in proportion for stirring and reacting. The product is sampled and tested through a sampling port. When the silver nitrate concentration is adjusted between 0.001 mol / L and 0.1 mol / L, silver particles of different sizes ranging from an average particle size of about 44 nm to submicron can be obtained and dispersed in the intercalated hexacyclic stone powder. Next, the entire process slurry and the silver particle product (first slurry) in the silver particle preparation reactor ① are introduced from the first slurry outlet ④ into the decorative board slurry raw material feeding port ⑤ of the decorative board slurry preparation reactor ②. The gypsum system gelling powder has been stirred in advance in the decorative board slurry preparation reactor ②. After the first slurry is introduced, stirring is continued to obtain a molded slurry. The molded slurry is cast and molded to obtain a decorative board body blank, which is then dried and cured.

[0057] Example 5

[0058] Using water as a solvent, a reaction solution containing AgNO3, intercalated six-ring stone powder, and powder made from arborvitae leaves is prepared. Each raw material is added to a silver particle preparation reactor in proportion to react with stirring. The product is sampled and tested through a sampling port. When the silver nitrate concentration is adjusted between 0.001 mol / L and 0.1 mol / L, silver particles of different sizes ranging from about 44 nm to submicron can be obtained and dispersed in the intercalated six-ring stone powder. Next, the entire process slurry and the silver particle product (first slurry) in the silver particle preparation reactor ① are introduced from the first slurry outlet ④ into the decorative board slurry raw material feeding port ⑤ of the decorative board slurry preparation reactor ②. The gypsum system gelling powder and a portion of the unintercalated second inorganic ion powder (also six-ring stone powder in this embodiment) are stirred in advance in the decorative board slurry preparation reactor ②. After the first slurry is introduced, stirring is continued to obtain a molding slurry. The molding slurry is cast to obtain a decorative board body blank, which is then dried and cured.

[0059] Example 6

[0060] Different from Example 4, in this embodiment, water is used as solvent to prepare a reaction solution containing AgNO3, intercalated hexacyclic stone powder and powder made from Platycladus orientalis leaves, the concentration of silver nitrate in the reaction solution is 0.02 mol / L, and each raw material is added to the silver particle preparation reactor ① in proportion to carry out stirring reaction, and the product is sampled and detected through the sampling port, as shown in FIG. Figure 4 As shown, a portion of the gypsum system gelling powder diluted slurry being mixed in the decorative board slurry preparation reactor ② is introduced into the silver particle preparation reactor ① in advance through the decorative board slurry discharge port ⑥ and the silver particle preparation raw material feeding port ③. The total introduced amount accounts for 12% of the total mass of the molding base raw materials to be prepared in the decorative board slurry preparation reactor ②. Sampling and detection show that almost no silver particles with a particle size of more than 300 nm can be found. However, when the scheme of Example 4 is implemented according to the same reactant ratio, a large number of silver particles with a size of more than 300 nm are distributed in the detection sample, which indicates that the generation of submicron powder in the silver particles is suppressed and the yield of nano powder is improved. Next, all the process slurries and silver particle products (the first slurry mixed with a portion of the pre-introduced gelling powder diluted slurry) in the silver particle preparation reactor ① are introduced from the first slurry outlet ④ into the decorative board slurry raw material feeding port ⑤ of the decorative board slurry preparation reactor ②. The remaining part of the gelling powder of the gypsum system has been stirred for a period of time in the decorative board slurry preparation reactor ②. After the first slurry is introduced, stirring is continued to obtain a molded slurry. The molded slurry is cast and molded to obtain a decorative board body blank, which is then dried and cured.

[0061] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be conceived by a person skilled in the art within the technical scope disclosed by the present invention without inventive effort should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection defined in the claims.

Claims

1. A processing technology for negative ion energy health decorative board, characterized in that: The following steps are involved: Step 1, preparing a reaction solution containing a silver salt, a first inorganic ion powder, and a first biological ion powder, wherein the first inorganic ion powder has the function of stimulating the release of negative oxygen ions and has a natural layered structure or has been intercalated, and the first biological ion powder has the function of stimulating the release of negative oxygen ions and has the ability to reduce silver ions to silver particles; Step 2: chemically reacting the reaction solution prepared in step 1 under stirring conditions, wherein the first biological ion powder in situ reduces the silver ions released from the silver salt to the interlayer gaps of the first inorganic ion powder to form silver particles, and the solution after the reaction is a first slurry; Step 3: without extracting the reaction product from the first slurry obtained in step 2, directly mixing the molding base material of the decorative board with the first slurry obtained in step 2, and stirring to obtain a molding slurry; Step 4: Casting the molding slurry obtained in step 3 to obtain a decorative board body blank, or using the molding slurry obtained in step 3 to make a composite layer on the decorative board body; Step 5: post-processing the decorative board body blank or composite layer obtained in step 4 to obtain the final negative ion energy healthy decorative board product.

2. The processing technology of the negative ion energy health decorative board according to claim 1 is characterized in that: In step 1, the first inorganic ion powder is a natural layered structure or intercalated tourmaline powder, hexacyclic stone powder, graphene powder or any combination thereof, and the first biological ion powder raw material is taken from the stems or leaves of woody or herbaceous plants that have reducing properties to metal ions.

3. The processing technology of the negative ion energy health decorative board according to claim 1 is characterized in that: In step 3, the base material for forming the decorative board is used to form polycarboxylate cement, calcium sulfate cement, magnesia cement or gypsum material.

4. The processing technology of the negative ion energy health decorative board according to claim 1 is characterized in that: The step of sampling and detecting the reduction product is also included between step 2 and step 3.

5. The processing technology of the negative ion energy health decorative board according to claim 4 is characterized in that: The sampling and testing at least includes testing the size of silver particles.

6. A method for regulating the size of silver particles in the processing of the negative ion energy health decorative board according to claim 1, characterized in that: The raw materials for forming the base material of the decorative board according to claim 5 are separately mixed and stirred into a premixed slurry. During the chemical reaction in step 2, A% of the premixed slurry is introduced into the reaction solution. In step 3, B% of the premixed slurry is mixed with the solution after the reaction is completed, and A% + B% = 100%.

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