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CN-122010598-A - High-glaze-hardness bone china and manufacturing method thereof

CN122010598ACN 122010598 ACN122010598 ACN 122010598ACN-122010598-A

Abstract

The invention discloses a bone china with high glaze hardness and a preparation method thereof. The bone china comprises a synergistically modified basic glaze, a functional organic micromolecule, a silicon-oxygen structure regulating agent, an inorganic structure stabilizing agent, a melting behavior regulating agent, a dispersing agent, a leveling agent and a defoaming agent, wherein the synergistically modified basic glaze takes feldspar, quartz, bone ash and wollastonite as basic glaze minerals, the gamma-aminopropyl triethoxysilane and boric acid are introduced to regulate and control the silicon-oxygen network in a synergistically structural manner, and the functional organic micromolecule is adamantane-1, 3-dicarboxylic acid. The components are prepared into glazing slurry and applied to the surface of a bone china blank, and the bone china product with high glaze hardness is obtained through drying and high-temperature sintering. The invention realizes densification of the glaze structure without obviously affecting the gloss and appearance quality of the glaze, obviously improves the wear resistance, scratch resistance, chemical corrosion resistance and cold and hot circulation resistance of the glaze, and has good practical value and popularization prospect.

Inventors

  • WU JI
  • JIN BAOYUAN

Assignees

  • 唐山庄信科技有限公司

Dates

Publication Date
20260512
Application Date
20260206

Claims (10)

  1. 1. The bone china with high glaze hardness is characterized by comprising, by weight, 85-95 parts of a synergistically modified basic glaze, 0.1-2.0 parts of a functional small organic molecule, 0.5-3.0 parts of a silicon-oxygen structure regulator, 0.3-2.0 parts of an inorganic structure stabilizer, 0.1-1.0 parts of a melting behavior regulator, 0.1-1.0 parts of a dispersing agent, 0.05-0.5 parts of a leveling agent and 0.01-0.3 parts of a defoaming agent, wherein the synergistically modified basic glaze is a modified glaze system formed by taking feldspar, quartz, bone ash and wollastonite as basic glaze minerals and performing synergistic structure regulation on a silicon-oxygen network in the ball milling and sintering processes by introducing gamma-aminopropyl triethoxysilane and boric acid, and the functional small organic molecule is adamantane-1, 3-dicarboxylic acid.
  2. 2. The high glaze hardness bone china according to claim 1, wherein the synergistically modified basic glaze comprises, by weight, 35-55 parts of potassium feldspar, 15-30 parts of quartz, 10-25 parts of bone ash, 5-15 parts of wollastonite, 0.3-2.0 parts of gamma-aminopropyl triethoxysilane and 0.2-1.5 parts of boric acid.
  3. 3. The high glaze hardness bone china according to claim 1 or 2, wherein the preparation method of the synergistically modified basic glaze comprises the following steps of (1) weighing potassium feldspar, quartz, bone ash and wollastonite according to the formula proportion, adding the potassium feldspar, quartz, bone ash and wollastonite into ball milling equipment, and adding deionized water for wet ball milling treatment to obtain uniformly dispersed basic glaze slurry; (2) Adding gamma-aminopropyl triethoxysilane and boric acid into the basic glaze slurry, and continuing ball milling or mixing and dispersing under the stirring condition to uniformly introduce the modified components into the basic glaze system to obtain the synergistic modified glaze slurry; (3) And drying the synergistic modified glaze slurry, crushing and sieving after drying to obtain the synergistic modified basic glaze.
  4. 4. The bone china with high glaze hardness according to claim 3, wherein the reaction condition of the step (1) is that the ball milling speed is 200-400 r/min, the ball milling time is 6-12 h, and the ball-to-material ratio is (1.5-3.0) to 1.
  5. 5. The bone china with high glaze hardness according to claim 3, wherein the reaction condition of the step (2) is that gamma-aminopropyl triethoxysilane and boric acid are added under the condition of 20-40 ℃ and mixed for 1-4 hours under continuous stirring.
  6. 6. The bone china with high glaze hardness according to claim 3, wherein the reaction condition of the step (3) is that the bone china is dried for 6-24 hours at 80-120 ℃, crushed and passes through a 100-200 mesh screen after being dried.
  7. 7. The high-glaze-hardness bone china is characterized in that the silicon-oxygen structure regulating agent is formed by mixing tetraethoxysilane and gamma-aminopropyl triethoxysilane according to the mass ratio of (3-8) to 1, the inorganic structure stabilizing agent is formed by mixing zirconia and wollastonite according to the mass ratio of (1-5) to 1, the melting behavior regulating agent is formed by mixing boric acid and lithium carbonate according to the mass ratio of (2-6) to 1, the dispersing agent is formed by mixing sodium hexametaphosphate and sodium polyacrylate according to the mass ratio of (1-4) to 1, the leveling agent is formed by mixing polydimethylsiloxane and polyether modified silicone oil according to the mass ratio of (1-3) to 1, and the defoaming agent is formed by mixing an organosilicon defoaming agent and mineral oil according to the mass ratio of (1-5) to 1.
  8. 8. The preparation method of the bone china with high glaze hardness is characterized by comprising the following steps of: S1, mixing a synergistically modified basic glaze, a silicon-oxygen structure regulating agent, an inorganic structure stabilizing agent, a melting behavior regulating agent, a dispersing agent, a leveling agent, a defoaming agent and functional organic small molecules, adding deionized water, stirring and dispersing to prepare uniform glazing slurry; S2, glazing slurry is applied to the surface of the bone china blank body, and a glaze layer is formed through low-temperature drying treatment; And S3, sintering the bone china blank at high temperature, and cooling after sintering to obtain the bone china product with high glaze hardness.
  9. 9. The method for preparing bone china with high glaze hardness according to claim 8, wherein the reaction condition of the step S1 is that deionized water is added under normal temperature condition for stirring and dispersing, the stirring speed is 300-800 r/min, and the stirring time is 30-120 min.
  10. 10. The method for preparing the bone china with high glaze hardness according to claim 8, wherein the reaction condition of the step S2 is that the bone china is dried for 0.5-4 hours at 20-60 ℃ after glazing, the reaction condition of the step S3 is that the bone china is sintered at 1150-1250 ℃, the heat preservation time is 30-120 min, and then the bone china is cooled to room temperature along with a furnace.

Description

High-glaze-hardness bone china and manufacturing method thereof Technical Field The invention belongs to the technical field of daily ceramic materials, and particularly relates to a high-glaze-hardness bone china and a preparation method thereof. Background The bone china has high whiteness, good light transmittance and fine texture, and is widely applied to the fields of high-end daily-use porcelain and decorative ceramic. However, with the continuous improvement of the use scene and the quality requirement, the existing bone china gradually exposes the problems of insufficient glaze hardness and limited scratch resistance in the long-term use process, and scratches are easily generated in the processes of tableware cleaning, metal contact or repeated friction, so that the appearance quality and the service life are influenced. In order to improve the glaze hardness of bone china, the prior art generally adopts the method of adjusting the proportion of inorganic components such as quartz, feldspar and the like in basic glaze or introducing inorganic hard materials such as alumina, zirconia and the like as reinforcing phases. However, the method often causes the technical problems of reduced transparency of the glaze layer, reduced gloss of the glaze surface, narrowed firing window, easy devitrification, pinholes or cracking of the glaze surface and the like, and is not beneficial to stable mass production. In the existing bone china glaze system, the application of the organic matters is mainly limited to forming aids or transient dispersants, which are usually completely decomposed or volatilized in the sintering process and cannot play a substantial role in the glaze layer structure. The technical scheme of carrying out cooperative modification on the glaze structure, especially taking part in the regulation and control of the silica network structure through organic components so as to improve the hardness of the glaze is still relatively rare in the existing bone china field. Therefore, how to realize densification of the glaze structure and improve the hardness and scratch resistance of the glaze by effectively modifying the basic glaze on the premise of not significantly affecting the transparency and the glossiness of the bone china glaze is still a technical problem to be solved in the field. Disclosure of Invention In order to overcome the problems of insufficient hardness, limited scratch resistance and easiness in influencing the transparency and glossiness of the glaze in the prior art, the invention aims to provide the bone china with high glaze hardness and the preparation method thereof. The invention adopts a bone china component system which takes a synergistic modified basic glaze as a main body and is matched with a silicon-oxygen structure regulator, an inorganic structure stabilizer, a melting behavior regulator and functional organic micromolecules, and prepares the bone china with high glaze hardness by combining corresponding glazing and sintering processes. The invention has the beneficial effects of compact glaze structure, high glaze hardness and excellent scratch resistance. The aim of the invention can be achieved by the following technical scheme: The bone china with high glaze hardness comprises, by weight, 85-95 parts of a synergistic modified basic glaze, 0.1-2.0 parts of a functional organic small molecule, 0.5-3.0 parts of a silicon-oxygen structure regulator, 0.3-2.0 parts of an inorganic structure stabilizer, 0.1-1.0 parts of a melting behavior regulator, 0.1-1.0 parts of a dispersing agent, 0.05-0.5 parts of a leveling agent and 0.01-0.3 parts of a defoaming agent, wherein the synergistic modified basic glaze is a modified glaze system formed by taking feldspar, quartz, bone ash and wollastonite as basic glaze minerals and performing synergistic structure regulation on a silicon-oxygen network in the ball milling and sintering processes by introducing gamma-aminopropyl triethoxysilane and boric acid, and the functional organic small molecule is adamantane-1, 3-dicarboxylic acid. Optionally, the synergistically modified basic glaze comprises, by weight, 35-55 parts of potassium feldspar, 15-30 parts of quartz, 10-25 parts of bone ash, 5-15 parts of wollastonite, 0.3-2.0 parts of gamma-aminopropyl triethoxysilane and 0.2-1.5 parts of boric acid. Weighing potassium feldspar, quartz, bone ash and wollastonite according to the formula proportion, adding the potassium feldspar, quartz, bone ash and wollastonite into ball milling equipment, adding deionized water for wet ball milling treatment to obtain uniformly dispersed basic glaze slurry; (2) Adding gamma-aminopropyl triethoxysilane and boric acid into the basic glaze slurry, and continuing ball milling or mixing and dispersing under the stirring condition to uniformly introduce the modified components into the basic glaze system to obtain the synergistic modified glaze slurry; (3) And drying the synergistic modified gla