Glass with far infrared energy and preparation process thereof

Abstract

The invention relates to the technical field of glass, and provides glass with far infrared energy and a preparation process thereof. The glass with far infrared energy is prepared from the following raw materials in parts by mass: 50 to 55 parts of quartz sand, 15 to 20 parts of borax, 1.5 to 3 parts of potassium carbonate, 0.1 to 0.5 part of barium carbonate, 2 to 4 parts of aluminum hydroxide, 1 to 1.5 parts of zinc oxide, 0.01 to 0.05 part of erbium oxide, 0.01 to 0.05 part of cobalt oxide, 0.5 to 3 parts of cerium oxide, 0.1 to 1.5 parts of cesium carbonate, 8 to 10 parts of sodium carbonate, 0.5 to 0.8 part of sodium oxysilicate and 10 to 15 parts of far infrared powder. According to the technical scheme, the problem that the impact resistance of the glass with far infrared energy in the related technology is poor is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of glass, and specifically, to a glass with far-infrared energy and a preparation process thereof. Background Art

[0002] Glass with far-infrared energy has been widely used in multiple fields such as building energy conservation, healthcare, and industrial heating due to its unique optical properties and healthcare characteristics. In the building field, this type of glass can effectively block ultraviolet rays and near-infrared rays, reduce indoor heat loss, and achieve energy conservation and consumption reduction; in the healthcare field, far-infrared energy can promote human blood circulation and enhance metabolism, and is used in the manufacture of physiotherapy equipment.

[0003] However, currently, glass with far-infrared energy generally has the problem of poor impact resistance. This defect makes such glass prone to cracking, fragmentation, etc. when subjected to external force impact. The poor impact resistance not only limits the application of glass with far-infrared energy in scenarios with higher requirements, but also poses safety hazards. For example, after accidental impact and breakage during use, sharp glass fragments may cause harm to personnel. Moreover, it will also affect the service life and reliability of the product, increase maintenance costs, and hinder the further development and technological upgrading of related industries.

[0004] Therefore, there is an urgent need to develop a glass that can not only maintain the characteristics of far-infrared energy but also have excellent impact resistance to meet the market demand for high-performance functional glass. Summary of the Invention

[0005] The present invention provides a glass with far-infrared energy and a preparation process thereof, which solves the problem of poor impact resistance of glass with far-infrared energy in related technologies.

[0006] The technical solution of the present invention is as follows: The present invention provides a glass with far-infrared energy, comprising the following raw materials in parts by mass: 50 - 55 parts of quartz sand, 15 - 20 parts of borax, 1.5 - 3 parts of potassium carbonate, 0.1 - 0.5 parts of barium carbonate, 2 - 4 parts of aluminum hydroxide, 1 - 1.5 parts of zinc oxide, 0.01 - 0.05 parts of erbium oxide, 0.01 - 0.05 parts of cobalt oxide, 0.5 - 3 parts of cerium oxide, 0.1 - 1.5 parts of cesium carbonate, 8 - 10 parts of sodium carbonate, 0.5 - 0.8 parts of sodium silicate, and 10 - 15 parts of far-infrared powder.

[0007] In the present invention, quartz sand is used as the basic component, and its high hardness and chemical stability construct a strong skeleton structure for the glass. Borax can reduce the thermal stress generated by rapid temperature changes, while increasing the softening temperature of the glass and enhancing its stability in high-temperature environments. Potassium carbonate and barium carbonate can optimize the viscosity characteristics of the glass, enabling the glass to maintain good structural stability at high temperatures, avoiding softening and deformation, and at the same time regulating the microstructure inside the glass to enhance the performance of the glass.

[0008] As a further technical solution, the mass ratio of the cerium oxide to the erbium oxide is 1.2:0.03 - 0.04.

[0009] As a further technical solution, the mass ratio of the cerium oxide, erbium oxide and cesium carbonate is 1.2:0.03:0.5 - 0.8.

[0010] In the present invention, among the raw materials of the glass with far-infrared energy, when the mass ratio of cerium oxide to erbium oxide is 1.2:0.03 - 0.04, the impact resistance of the glass with far-infrared energy is further improved. Especially when optimized to the mass ratio of cerium oxide, erbium oxide and cesium carbonate of 1.2:0.03:0.5 - 0.8, the synergistic effect of the three is maximally exerted. Cerium oxide creates good conditions for the crystal refinement of erbium oxide. Cesium carbonate cooperates with the former two, making the internal stress distribution of the glass uniform, and the microstructure dense and uniform. When subjected to impact, it can effectively disperse the impact force by virtue of the uniform structure, greatly reducing the possibility of rupture caused by local stress concentration, and further improving the impact resistance of the glass with far-infrared energy.

[0011] The present invention also proposes a preparation process for a glass with far-infrared energy, which is used to prepare the glass with far-infrared energy described above, and includes the following steps: Mix, melt, shape and anneal the raw materials of the glass to obtain the glass with far-infrared energy.

[0012] As a further technical solution, the mixing time is 30 - 40 min.

[0013] As a further technical solution, the melting temperature is 1400 - 1600 °C, and the time is 12 - 14 h.

[0014] As a further technical solution, the shaping includes one of pressing shaping and blowing shaping; The far-infrared powder includes tourmaline powder.

[0015] As a further technical solution, the annealing temperature is 500 - 600 °C, and the time is 2 - 3 h.

[0016] As a further technical solution, the annealing is stepwise annealing. First, keep it at 500 - 600 °C for 0.5 - 1 h, then cool it at a rate of 12 - 18 °C / h to 350 - 450 °C and keep it for 1 - 1.5 h. Finally, cool it at a rate of 12 - 18 °C / h to 280 - 300 °C, keep it for 0.5 - 1 h and then cool it to room temperature.

[0017] As a further technical solution, the annealing is stepwise annealing. First, keep it at 500 - 600 °C for 0.5 - 1 h, then cool it at a rate of 14 °C / h to 350 - 450 °C and keep it for 1 - 1.5 h. Finally, cool it at a rate of 18 °C / h to 280 - 300 °C, keep it for 0.5 - 1 h and then cool it to room temperature.

[0018] In the present invention, different from the simple or conventional glass annealing methods in the prior art, the present invention adopts a specific stepwise annealing process, effectively improving the heat resistance of the glass. In the initial stage of annealing, the glass is placed at 500 - 600 °C and kept for 0.5 - 1 h, promoting the release of the internal stress generated during forming in the glass and enabling the molecular chain segments to move, creating conditions for stress relaxation. Subsequently, it is cooled to 350 - 450 °C at a moderate cooling rate of 12 - 18 °C / h and kept for 1 - 1.5 h. During this process, the internal structure of the glass gradually stabilizes. The appropriate cooling rate avoids the generation of new stress, and the holding further optimizes the internal structure and reduces defects. Finally, it is cooled to 280 - 300 °C at a rate of 12 - 18 °C / h again and kept for 0.5 - 1 h to finely adjust the internal structure of the glass and completely eliminate the residual stress. After the specific stepwise annealing treatment, the internal stress of the glass is comprehensively and evenly released, and its internal structure becomes more uniform and stable, improving the heat resistance of the glass with far-infrared energy.

[0019] The working principle and beneficial effects of the present invention are as follows: In the present invention, erbium oxide, cerium oxide, and cesium carbonate are used as raw materials of the glass, which synergistically improve the impact resistance of the glass. Different from the prior art that insufficiently considers the improvement of impact resistance when preparing glass with far-infrared energy, the present invention significantly improves the impact resistance of the glass by the synergistic effect of erbium oxide, cerium oxide, and cesium carbonate: erbium oxide fills the voids of the glass network with a moderate ionic radius, stabilizes the glass network structure, enhances its connection strength, enables the glass to effectively disperse stress when subjected to impact, cerium oxide participates in the construction of the glass network, improves chemical stability and refines the microstructure, makes the interior of the glass more uniform and dense, strongly resists external force impact, and reduces the generation and propagation of cracks, the cesium ions in cesium carbonate enter the glass network with a relatively large radius, increase the structural flexibility, enable the glass to undergo a certain deformation without breaking when stressed. When these three components act synergistically, the uniform structure refined by cerium oxide provides a better foundation for the stable network of erbium oxide, and the increased flexibility of cesium carbonate enables the stable network to buffer stress more efficiently when stressed, ultimately greatly improving the impact resistance of the glass with far-infrared energy. Detailed implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of the present invention.

[0021] Embodiment 1 The glass with far-infrared energy includes the following raw materials in parts by mass: 50 parts of quartz sand, 15 parts of borax, 1.5 parts of potassium carbonate, 0.1 part of barium carbonate, 2 parts of aluminum hydroxide, 1 part of zinc oxide, 0.01 part of erbium oxide, 0.01 part of cobalt oxide, 0.5 part of cerium oxide, 0.1 part of cesium carbonate, 8 parts of sodium carbonate, 0.5 part of sodium silicate, and 10 parts of tourmaline powder.

[0022] The glass with far-infrared energy includes the following steps: Mix the raw materials of the glass for 30 minutes, melt at 1400 °C for 14 hours, press into shape, anneal at 500 °C for 3 hours, and cool to obtain the glass with far-infrared energy.

[0023] Embodiment 2 The glass with far-infrared energy includes the following raw materials in parts by mass: 55 parts of quartz sand, 20 parts of borax, 3 parts of potassium carbonate, 0.5 part of barium carbonate, 4 parts of aluminum hydroxide, 1.5 parts of zinc oxide, 0.05 part of erbium oxide, 0.05 part of cobalt oxide, 3 parts of cerium oxide, 1.5 part of cesium carbonate, 10 parts of sodium carbonate, 0.8 part of sodium silicate, and 15 parts of tourmaline powder.

[0024] Glass with far-infrared energy, comprising the following steps: Mix the raw materials of the glass for 40 min, melt at 1600 °C for 12 h, press into shape, anneal at 600 °C for 2 h, and cool to obtain the glass with far-infrared energy.

[0025] Example 3 Glass with far-infrared energy, comprising the following raw materials in parts by mass: 50 parts of quartz sand, 18 parts of borax, 2 parts of potassium carbonate, 0.2 part of barium carbonate, 3.5 parts of aluminum hydroxide, 1 part of zinc oxide, 0.01 part of erbium oxide, 0.02 part of cobalt oxide, 1.2 parts of cerium oxide, 0.2 part of cesium carbonate, 9 parts of sodium carbonate, 0.65 part of sodium silicate, and 15 parts of tourmaline powder.

[0026] Glass with far-infrared energy, comprising the following steps: Mix the raw materials of the glass for 35 min, melt at 1500 °C for 13 h, press into shape, anneal at 600 °C for 3 h, and cool to obtain the glass with far-infrared energy.

[0027] Example 4 The difference between this example and Example 3 is only that the glass with far-infrared energy comprises the following raw materials in parts by mass: 50 parts of quartz sand, 18 parts of borax, 2 parts of potassium carbonate, 0.2 part of barium carbonate, 3.5 parts of aluminum hydroxide, 1 part of zinc oxide, 0.05 part of erbium oxide, 0.02 part of cobalt oxide, 1.2 parts of cerium oxide, 0.2 part of cesium carbonate, 9 parts of sodium carbonate, 0.65 part of sodium silicate, and 15 parts of tourmaline powder.

[0028] Example 5 The difference between this example and Example 3 is only that the glass with far-infrared energy comprises the following raw materials in parts by mass: 50 parts of quartz sand, 18 parts of borax, 2 parts of potassium carbonate, 0.2 part of barium carbonate, 3.5 parts of aluminum hydroxide, 1 part of zinc oxide, 0.04 part of erbium oxide, 0.02 part of cobalt oxide, 1.2 parts of cerium oxide, 0.2 part of cesium carbonate, 9 parts of sodium carbonate, 0.65 part of sodium silicate, and 15 parts of tourmaline powder.

[0029] Example 6 The difference between this example and Example 3 is only that the glass with far-infrared energy comprises the following raw materials in parts by mass: 50 parts of quartz sand, 18 parts of borax, 2 parts of potassium carbonate, 0.2 part of barium carbonate, 3.5 parts of aluminum hydroxide, 1 part of zinc oxide, 0.03 part of erbium oxide, 0.02 part of cobalt oxide, 1.2 parts of cerium oxide, 0.2 part of cesium carbonate, 9 parts of sodium carbonate, 0.65 part of sodium silicate, and 15 parts of tourmaline powder.

[0030] Example 7 The difference between this embodiment and Embodiment 6 lies only in the glass with far-infrared energy, which comprises raw materials in the following parts by mass: 50 parts of quartz sand, 18 parts of borax, 2 parts of potassium carbonate, 0.2 part of barium carbonate, 3.5 parts of aluminum hydroxide, 1 part of zinc oxide, 0.03 part of erbium oxide, 0.02 part of cobalt oxide, 1.2 parts of cerium oxide, 1.0 part of cesium carbonate, 9 parts of sodium carbonate, 0.65 part of sodium silicate, and 15 parts of tourmaline powder.

[0031] Embodiment 8 The difference between this embodiment and Embodiment 6 lies only in the glass with far-infrared energy, which comprises raw materials in the following parts by mass: 50 parts of quartz sand, 18 parts of borax, 2 parts of potassium carbonate, 0.2 part of barium carbonate, 3.5 parts of aluminum hydroxide, 1 part of zinc oxide, 0.03 part of erbium oxide, 0.02 part of cobalt oxide, 1.2 parts of cerium oxide, 0.8 part of cesium carbonate, 9 parts of sodium carbonate, 0.65 part of sodium silicate, and 15 parts of tourmaline powder.

[0032] Embodiment 9 The difference between this embodiment and Embodiment 6 lies only in the glass with far-infrared energy, which comprises raw materials in the following parts by mass: 50 parts of quartz sand, 18 parts of borax, 2 parts of potassium carbonate, 0.2 part of barium carbonate, 3.5 parts of aluminum hydroxide, 1 part of zinc oxide, 0.03 part of erbium oxide, 0.02 part of cobalt oxide, 1.2 parts of cerium oxide, 0.5 part of cesium carbonate, 9 parts of sodium carbonate, 0.65 part of sodium silicate, and 15 parts of tourmaline powder.

[0033] Embodiment 10 The difference between this embodiment and Embodiment 9 lies only in the glass with far-infrared energy, which comprises the following steps: Mix the raw materials of the glass for 35 min, melt at 1500 °C for 13 h, press into shape, and perform segmented annealing. First, keep the temperature at 500 °C for 0.5 h, then cool at a rate of 12 °C / h to 350 °C and keep the temperature for 1.5 h. Finally, cool at a rate of 12 °C / h to 280 °C, keep the temperature for 1 h, and then cool to room temperature to obtain the glass with far-infrared energy.

[0034] Embodiment 11 The difference between this embodiment and Embodiment 9 lies only in the glass with far-infrared energy, which comprises the following steps: Mix the raw materials of the glass for 35 min, melt at 1500 °C for 13 h, press into shape, and perform segmented annealing. First, keep the temperature at 500 °C for 0.5 h, then cool at a rate of 18 °C / h to 350 °C and keep the temperature for 1.5 h. Finally, cool at a rate of 18 °C / h to 280 °C, keep the temperature for 1 h, and then cool to room temperature to obtain the glass with far-infrared energy.

[0035] Embodiment 12 The difference between this embodiment and Embodiment 9 lies only in the glass with far-infrared energy, which comprises the following steps: Mix the raw materials of the glass for 35 minutes, melt at 1500 °C for 13 hours, press into shape, and perform segmented annealing. First, hold at 500 °C for 0.5 hours, then cool at a rate of 14 °C / h to 350 °C and hold for 1.5 hours. Finally, cool at a rate of 18 °C / h to 280 °C, hold for 1 hour, and then cool to room temperature to obtain glass with far-infrared energy.

[0036] Example 13 The difference between this example and Example 9 lies only in the glass with far-infrared energy, including the following steps: Mix the raw materials of the glass for 35 minutes, melt at 1500 °C for 13 hours, press into shape, and perform segmented annealing. First, hold at 600 °C for 1 hour, then cool at a rate of 14 °C / h to 450 °C and hold for 1 hour. Finally, cool at a rate of 18 °C / h to 300 °C, hold for 0.5 hours, and then cool to room temperature to obtain glass with far-infrared energy.

[0037] Comparative Example 1 The difference between this comparative example and Example 3 lies only in that the glass composition does not contain erbium oxide.

[0038] Comparative Example 2 The difference between this comparative example and Example 3 lies only in that the glass composition does not contain cerium oxide.

[0039] Comparative Example 3 The difference between this comparative example and Example 3 lies only in that the glass composition does not contain cesium carbonate.

[0040] Experimental Example 1 Perform mechanical shock strength tests on the glass with far-infrared energy prepared in Examples 1-9 and Comparative Examples 1-3 respectively according to the standard GB / T6552-2015 "Test Method for Mechanical Shock Resistance of Glass Containers". The results are shown in Table 1 below.

[0041] Table 1 Test Results

[0042] Compared with Comparative Examples 1-3, the glass with far-infrared energy prepared in Examples 1-9 has higher mechanical shock strength, indicating that the components of cesium carbonate, erbium oxide, and cerium oxide in the glass raw materials synergistically significantly improve the impact resistance of the glass with far-infrared energy.

[0043] Experimental Example 2 The glasses with far-infrared energy prepared in Examples 9 to 13 were heated at a rate of 5 °C / min according to the method of Standard GB / T 16920-2015 "Glass - Determination of mean coefficient of linear thermal expansion", and the mean coefficient of linear thermal expansion in the range of 20 °C to 300 °C was recorded. The results are shown in Table 2 below.

[0044] Table 2 Test Results

[0045] Compared with Example 9, the glasses with far-infrared energy prepared in Examples 10 to 13 have a lower mean coefficient of linear thermal expansion, indicating that the use of segmented annealing during annealing improves the heat resistance of the glasses with far-infrared energy.

[0046] Experimental Example 3 The glass with far-infrared energy was prepared according to the glass raw materials and preparation process of Example 3. The normal total emissivity of the glass was detected according to Article 6.15 of Standard GB / T 18497.2-2019 "Characteristics of industrial heating electric infrared emitters - Part 2: Medium and long wave electric infrared emitters", and the infrared radiation wavelength range of the glass was detected according to Article 6.18. The test results are shown in Table 3 below.

[0047] Table 3 Test Results

[0048] It can be seen that the glass prepared according to the glass raw materials and preparation process of the present invention has excellent far-infrared energy.

[0049] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A glass with far-infrared energy, characterized in that, It comprises raw materials in the following parts by mass: 50 - 55 parts of quartz sand, 15 - 20 parts of borax, 1.5 - 3 parts of potassium carbonate, 0.1 - 0.5 parts of barium carbonate, 2 - 4 parts of aluminum hydroxide, 1 - 1.5 parts of zinc oxide, 0.01 - 0.05 parts of erbium oxide, 0.01 - 0.05 parts of cobalt oxide, 0.5 - 3 parts of cerium oxide, 0.1 - 1.5 parts of cesium carbonate, 8 - 10 parts of sodium carbonate, 0.5 - 0.8 parts of sodium silicate, and 10 - 15 parts of far-infrared powder.

2. The glass with far-infrared energy according to claim 1, characterized in that, The mass ratio of the cerium oxide to the erbium oxide is 1.2:0.03 - 0.

04.

3. The glass with far-infrared energy according to claim 2, characterized in that, The mass ratio of the cerium oxide, erbium oxide and cesium carbonate is 1.2:0.03:0.5 - 0.

8.

4. A preparation process of glass with far-infrared energy, which is used to prepare the glass with far-infrared energy according to any one of claims ~ 3, and is characterized in that, It comprises the following steps: Mix, melt, shape and anneal the raw materials of the glass to obtain the glass with far-infrared energy.

5. The preparation process of a glass with far-infrared energy according to claim 4, characterized in that, The mixing time is 30 - 40 min.

6. The preparation process of a glass with far-infrared energy according to claim 4, characterized in that, The melting temperature is 1400 - 1600 °C and the time is 12 - 14 h.

7. The preparation process of a glass with far-infrared energy according to claim 4, characterized in that, The shaping includes one of pressing shaping and blowing shaping; The far-infrared powder includes tourmaline powder.

8. The preparation process of a kind of glass with far-infrared energy according to claim 4, characterized in that, The annealing temperature is 500 - 600 °C and the time is 2 - 3 h.

9. The preparation process of a glass with far-infrared energy according to claim 4, characterized in that, The annealing is segmented annealing. First, keep it warm at 500 - 600 °C for 0.5 - 1 h, then cool it at a rate of 12 - 18 °C / h to 350 - 450 °C and keep it warm for 1 - 1.5 h. Finally, cool it at a rate of 12 - 18 °C / h to 280 - 300 °C, keep it warm for 0.5 - 1 h and then cool it to room temperature.

10. The preparation process of a glass with far-infrared energy according to claim 9, characterized in that, The annealing is segmented annealing. First, keep it warm at 500 - 600 °C for 0.5 - 1 h, then cool it at a rate of 14 °C / h to 350 - 450 °C and keep it warm for 1 - 1.5 h. Finally, cool it at a rate of 18 °C / h to 280 - 300 °C, keep it warm for 0.5 - 1 h and then cool it to room temperature.

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