Ship glass and preparation method thereof

Abstract

The invention discloses ship glass and a preparation method thereof, and relates to the technical field of ship glass. The ship glass comprises a first glass substrate, a second glass substrate and an aerogel layer, the aerogel layer is fixed between the first glass substrate and the second glass substrate, the first glass substrate is located on the side away from the interior of a ship, and the second glass substrate is located on the side close to the interior of the ship. The aerogel layer is a silica aerogel layer doped with titanium oxide, and the aperture of the aerogel layer is gradually reduced in the direction from the first glass substrate to the second glass substrate. The ship glass provided by the invention has the titanium oxide doped aerogel, and the aerogel has gradient aperture, so that not only can ultraviolet rays be effectively isolated, but also the heat insulation and sound absorption effects of the ship glass can be improved on the basis of ensuring good light transmission performance.

Description

Technical Field

[0001] The present invention relates to the technical field of ship glass, and in particular to ship glass and a preparation method thereof. Background Art

[0002] As the shipbuilding industry continues to improve its requirements for safety, comfort, energy conservation and environmental protection, ship glass, as an important functional component of ships, has increasingly stringent performance requirements in terms of heat insulation, sound absorption, light transmission, etc. At present, ship glass usually uses a single material or a composite material to achieve the above functions, but traditional materials have the following shortcomings: in terms of heat insulation performance, conventional glass has high thermal conductivity and is difficult to effectively reduce the temperature inside the ship; in terms of sound absorption performance, traditional materials fail to take into account good light transmission; in addition, traditional glass has a weak protection effect against ultraviolet rays. Long-term exposure to ultraviolet rays may cause the interior to fade and the temperature inside the ship to be too high, affecting driving comfort and the service life of the material.

[0003] Therefore, providing a ship glass with excellent heat insulation, sound absorption, light transmission and UV protection properties and a preparation method thereof has become a technical problem to be urgently solved by those skilled in the art. Summary of the invention

[0004] The invention discloses a ship glass and a preparation method thereof, so as to solve the technical problems of the ship glass in the related art, namely, poor heat insulation performance, inability to balance sound absorption performance and light transmission performance, and weak protection effect against ultraviolet rays.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions: A first aspect of the present invention provides a ship glass.

[0006] The ship glass of the present invention comprises a first glass substrate, a second glass substrate and an aerogel layer, wherein the aerogel layer is fixed between the first glass substrate and the second glass substrate, the first glass substrate is located on a side away from the interior of the ship, the second glass substrate is located on a side close to the interior of the ship, and the aerogel layer is a silicon aerogel layer doped with titanium oxide, and the pore size of the aerogel layer gradually decreases from the first glass substrate to the second glass substrate.

[0007] According to an optional embodiment, the pore size of the aerogel layer gradually decreases from 500 nm to 10 nm in a direction from the first glass substrate to the second glass substrate.

[0008] According to an optional embodiment, in a direction from the first glass substrate to the second glass substrate, the pore size of the aerogel layer gradually decreases from 240 nm to 80 nm.

[0009] A second aspect of the present invention provides a method for preparing ship glass.

[0010] The method for preparing the ship glass according to any technical solution of the present invention comprises the following steps: Step 100: preparing an aerogel layer, wherein the aerogel layer is a silicon aerogel layer doped with titanium oxide, and the pore size of the aerogel layer gradually decreases from one side to the other side; Step 200: fixing the aerogel layer on the first glass substrate, and making the side of the aerogel layer with a larger pore size fit the first glass substrate; Step 300: attaching a second glass substrate to the side of the aerogel layer with a smaller pore size and curing the aerogel layer so that the aerogel layer is fixed between the first glass substrate and the second glass substrate.

[0011] According to an optional embodiment, the method for preparing the ship glass further comprises the following steps: Step 400: coating a protective layer on the exposed surface of the aerogel layer, and curing the protective layer.

[0012] According to an optional embodiment, preparing the aerogel layer comprises the following steps: Step 110: tetraethoxysilane, ethanol and deionized water are mixed to obtain a mixture, and different amounts of tetrabutyl titanate are added to the mixture to perform a sol-gel reaction to form a first silicon aerogel precursor and a second silicon aerogel precursor containing titanium oxide, wherein the content of tetrabutyl titanate in the first silicon aerogel precursor is higher than the content of tetrabutyl titanate in the second silicon aerogel precursor; Step 120: adding equal volumes of the first silicon aerogel precursor and the second silicon aerogel precursor to the first container and the second container respectively, transferring the second silicon aerogel precursor to the third container, and injecting the first aerogel precursor into the bottom of the third container using a syringe; Step 130: placing the third container on a rotating table and rotating it, and mixing the first silicon aerogel precursor and the second silicon aerogel precursor in the third container to form a solution with a concentration gradient distribution; Step 140: After the rotation is completed, the solution obtained in step 130 is subjected to solvent exchange; Step 150: using ultraviolet light to gel the solution to obtain a gel, and drying the gel to remove the solvent to obtain the aerogel layer.

[0013] According to an optional embodiment, in step 110, after tetrabutyl titanate is mixed with tetraethoxysilane, ethanol and deionized water, an alkaline substance is added to the mixed solution to adjust the pH of the mixed solution to 7-8.

[0014] According to an optional embodiment, in the first silicon aerogel precursor, the mass ratio of tetraethoxysilane, ethanol, deionized water and tetrabutyl titanate is 1:4:2:2.5-6; in the second silicon aerogel precursor, the mass ratio of tetraethoxysilane, ethanol, deionized water and tetrabutyl titanate is 1:4:2:1-1.5.

[0015] According to an optional implementation, in step 130, the inclination angle α of the third container is 10-15°; the rotation speed of the turntable is 10 r / min, and the rotation time of the turntable is 6-8 min.

[0016] According to an optional embodiment, in step 140, the solution obtained in step 130 is immersed in ethanol, and the ethanol is replaced once a day. After 1 to 3 replacements, the solvent exchange is completed.

[0017] The technical solution adopted by the present invention can achieve the following beneficial effects: In the first aspect, the ship glass of the present invention has an aerogel layer, which has excellent thermal insulation properties and can effectively reduce heat conduction; at the same time, the aerogel layer is a silicon aerogel layer doped with titanium oxide. By adding titanium oxide to the aerogel layer, the ultraviolet blocking ability of the aerogel layer is enhanced, which can greatly reduce the proportion of ultraviolet rays entering the interior of the ship through the glass. It can be seen that the ship glass of the present invention has a silicon aerogel layer doped with titanium oxide, which can effectively protect the interior decorative materials of the ship from the influence of ultraviolet radiation, slow down the aging and fading of the interior materials, and significantly reduce the heat load of the interior environment of the ship under strong light conditions, thereby further improving the overall thermal insulation effect and service life.

[0018] Secondly, the pore size of the aerogel layer of the ship glass of the present invention gradually decreases from the outside of the ship to the inside of the ship. The pore size near the outside of the ship is larger, and the larger pore size can play a sound-absorbing role to effectively reduce the transmission of noise outside the ship; the pore size near the inside of the ship is smaller, which can make the aerogel layer have excellent thermal insulation performance, reduce heat transfer, and control the temperature inside the ship.

[0019] It can be seen that the ship glass of the present invention has aerogel doped with titanium oxide, and the aerogel has a gradient pore size, which can not only effectively block ultraviolet rays, but also improve the heat insulation and sound absorption effects of the ship glass on the basis of ensuring good light transmission performance, thereby solving the technical problems of ship glass in the related art, such as poor heat insulation performance, inability to balance sound absorption and light transmission performance, and weak protection against ultraviolet rays. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the structure of the ship glass according to the embodiment of the present application; Figure 2 It is a process flow chart of preparing an aerogel layer in an embodiment of the present application.

[0022] In the figure: 110, a first glass substrate; 120, a second glass substrate; 130, an aerogel layer; 210, a first container; 220, a second container; 230, a third container; 240, a rotating table. DETAILED DESCRIPTION

[0023] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0024] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0025] Traditional ship glass has technical problems such as poor heat insulation performance, poor sound absorption and light transmission performance, and weak protection against ultraviolet rays. The ship glass of the present application has an aerogel layer between the first glass substrate and the second glass substrate, and the aerogel layer is a silicon aerogel layer doped with titanium oxide, and the pore size of the aerogel layer gradually decreases from the outer side of the ship to the inner side of the ship.

[0026] The ship glass of the present application has an aerogel layer, which is a silicon aerogel layer doped with titanium oxide, which can not only improve the thermal insulation performance of the ship glass, but also enhance the ultraviolet blocking ability of the ship glass, significantly reduce the impact of ultraviolet rays on the ship's internal environment, thereby protecting the ship's internal decorative materials while slowing down the aging and fading of the interior. On the other hand, the pore size of the aerogel layer gradually decreases from the direction close to the outside of the ship to the direction close to the inside of the ship. The gradient pore size of the aerogel layer can also improve the heat insulation and sound absorption effects of the ship glass on the basis of ensuring the good light transmission performance of the ship glass.

[0027] That is, the ship glass of the present application has an aerogel layer, which makes the ship glass a high-performance ship glass integrating heat insulation, sound absorption and light transmission adjustment functions, providing an effective solution for achieving green energy saving in the shipbuilding industry, improving driving comfort and extending the life of ship interiors.

[0028] The following is combined with Figure 1 and Figure 2 , the ship glass and its preparation method provided in this application are described in detail.

[0029] The ship glass of the present invention comprises a first glass substrate 110, a second glass substrate 120 and an aerogel layer 130, wherein the aerogel layer 130 is fixed between the first glass substrate 110 and the second glass substrate 120. Figure 1 As shown. For example, the first glass substrate 110 is a high light transmittance glass substrate in the prior art, which has a high optical transmittance and is used to provide a transparent field of view. For example, the optical transmittance of the first glass substrate 110 is above 80%. The second glass substrate 120 is mainly used to ensure the stability and durability of the structure. It is known that the second glass substrate 120 can also be a high light transmittance glass substrate.

[0030] In some embodiments, the first glass substrate 110 is located on a side away from the interior of the ship, the second glass substrate 120 is located on a side close to the interior of the ship, and the aerogel layer 130 is a silicon aerogel layer 130 doped with titanium oxide, and the pore size of the aerogel layer 130 gradually decreases from the first glass substrate 110 to the second glass substrate 120. The interior of the ship refers to the interior of the ship's cabin. That is, the first glass substrate 110 is close to the external environment, and the second glass substrate 120 is close to the interior of the ship's cabin.

[0031] The pore size of the aerogel layer 130 gradually decreases from the first glass substrate 110 to the second glass substrate 120, that is, the aerogel layer 130 has a variety of pore sizes from the first glass substrate 110 to the second glass substrate 120, and the variety of pore sizes gradually decreases, so that the aerogel layer 130 forms a gradient pore size structure.

[0032] Exemplarily, the pore size of the aerogel layer 130 gradually decreases from 500 nm to 10 nm, and the porosity gradually decreases from 90% to 60% from the first glass substrate 110 to the second glass substrate 120. Preferably, the pore size of the aerogel layer 130 is 20 nm to 500 nm near the first glass substrate 110; and the pore size of the aerogel layer 130 is 10 nm to 100 nm near the second glass substrate 120. Preferably, the pore size of the aerogel layer gradually decreases from 240 nm to 80 nm from the first glass substrate to the second glass substrate.

[0033] The ship glass of the present invention has an aerogel layer 130, which has excellent thermal insulation performance and can effectively reduce heat conduction; at the same time, the aerogel layer 130 is a silicon aerogel layer doped with titanium oxide. By adding titanium oxide to the aerogel layer 130, the ultraviolet blocking ability of the aerogel layer 130 is enhanced, and the proportion of ultraviolet rays passing through the glass into the interior of the ship can be greatly reduced. It can be seen that the ship glass of the present invention has a silicon aerogel layer 130 doped with titanium oxide, which can effectively protect the decorative materials inside the ship from the influence of ultraviolet radiation, slow down the aging and fading of the interior materials, and significantly reduce the heat load of the internal environment of the ship under strong light conditions, thereby further improving the overall thermal insulation effect and service life.

[0034] In addition, the pore size of the aerogel layer 130 of the ship glass of the present invention gradually decreases from close to the outside of the ship to close to the inside of the ship. The pore size near the outside of the ship is larger, and the larger pore size can play a sound absorption role to effectively reduce the transmission of noise outside the ship; the pore size near the inside of the ship is smaller, which can make the aerogel layer 130 have excellent thermal insulation performance, reduce heat transfer, and control the temperature inside the ship.

[0035] The ship glass of the present invention has an aerogel layer 130 doped with titanium oxide, and the aerogel layer 130 has a gradient aperture, which can not only effectively block ultraviolet rays, but also improve the heat insulation and sound absorption effects of the ship glass on the basis of ensuring good light transmission performance; in addition, the ship glass of the present invention improves the compressive strength and impact resistance of the aerogel layer 130 through the introduction of the gradient open pore structure and titanium oxide.

[0036] The method for preparing the ship glass according to any technical solution of the present invention comprises the following steps: Step 100: preparing an aerogel layer 130, wherein the aerogel layer 130 is a silicon aerogel layer 130 doped with titanium oxide, and the pore size of the aerogel layer 130 gradually decreases from one side to the other side.

[0037] Step 200 : fix the aerogel layer 130 on the first glass substrate 110 , and make the side of the aerogel layer 130 with a larger pore size fit the first glass substrate 110 .

[0038] Step 300 : attaching the second glass substrate 120 to the side of the aerogel layer 130 with a smaller pore size and curing the aerogel layer 130 , so that the aerogel layer 130 is fixed between the first glass substrate 110 and the second glass substrate 120 .

[0039] In some embodiments, when fixing the aerogel layer 130 to the first glass substrate 110 and the second glass substrate 120, the following steps are included: First, an optically transparent silicone rubber with high light transmittance and strong adhesion is selected and evenly coated on the inner surface of the first glass substrate 110 to ensure that the adhesive layer is uniform and free of bubbles. Exemplarily, the coating thickness of the adhesive layer is 50 μm to 200 μm, which can ensure the structural stability and good light transmittance of the aerogel layer 130. Secondly, the prepared aerogel layer 130 is placed on the first glass substrate 110 coated with the adhesive. The aerogel layer 130 is gently pressed to ensure that it is in full contact with the first glass substrate 110, while avoiding structural damage or pore deformation of the aerogel layer 130. Again, the second glass substrate 120 is attached to the other side of the aerogel layer 130, and a laminating device is used to apply uniform pressure to ensure the tight bonding of the entire composite structure and avoid interface defects caused by local stress concentration. Finally, after the composite, the assembly is placed at room temperature or a suitable temperature for curing. The curing time is adjusted according to the type of adhesive, usually more than 24 hours, to ensure that the adhesive is fully cured and achieves the best bonding performance.

[0040] In some embodiments, the method for preparing ship glass further includes the following steps: coating a protective layer on the exposed surface of the aerogel layer 130, and curing the protective layer. Exemplarily, the protective layer is an anti-scratch layer and / or a hydrophobic coating. The protective layer is coated on the exposed surface of the aerogel layer 130 by spraying or brushing to ensure the uniformity and continuity of the coating. After coating, the protective layer is cured by heat treatment or ultraviolet curing to enhance the adhesion and durability of the protective layer. The protective layer can effectively improve the surface anti-fouling ability and self-cleaning performance of the glass component, while extending its service life.

[0041] The ship glass of the present invention can also improve the weather resistance and durability of the aerogel layer 130 by setting a protective layer and setting a gradient aperture, and can adapt to complex climate environments.

[0042] Figure 2 FIG. 1 shows a process flow chart of preparing the aerogel layer 130 of the present invention. Figure 2 As shown, preparing the aerogel layer 130 includes the following steps: Step 110: Tetraethoxysilane, ethanol and deionized water are mixed to obtain a mixture, and different amounts of tetrabutyl titanate are added to the mixture to perform a sol-gel reaction to form a first silicon aerogel precursor and a second silicon aerogel precursor containing titanium oxide, wherein the content of tetrabutyl titanate in the first silicon aerogel precursor is higher than the content of tetrabutyl titanate in the second silicon aerogel precursor.

[0043] Preferably, after tetrabutyl titanate is mixed with tetraethoxysilane, ethanol and deionized water, an alkaline substance is added to the mixed solution to adjust the pH of the mixed solution to 7 to 8. Exemplarily, the alkaline substance is ammonia water. Adjusting the pH of the mixed solution to 7 to 8 can promote the hydrolysis and condensation reaction of tetraethoxysilane to ensure the smooth progress of the sol-gel reaction.

[0044] Preferably, in the first silicon aerogel precursor, the mass ratio of tetraethoxysilane, ethanol, deionized water and tetrabutyl titanate is 1:4:2:2.5-6; in the second silicon aerogel precursor, the mass ratio of tetraethoxysilane, ethanol, deionized water and tetrabutyl titanate is 1:4:2:1-1.5.

[0045] Step 120: Add equal volumes of the first silicon aerogel precursor and the second silicon aerogel precursor to the first container 210 and the second container 220, respectively, transfer the second silicon aerogel precursor to the third container 230, and use a syringe to inject the first aerogel precursor into the bottom of the third container 230. Exemplarily, the first container 210, the second container 220, and the third container 230 may be centrifuge tubes.

[0046] Specifically, after the first aerogel precursor is injected into the bottom of the third container 230 using a syringe, the syringe is quickly withdrawn and the tube cap is covered to avoid excessive air in the third container 230, thereby avoiding excessive air in the aerogel precursor, which may cause the aerogel precursor to break easily during drying.

[0047] Step 130: The third container 230 is placed on the rotating table 240 and rotated, and the first silicon aerogel precursor and the second silicon aerogel precursor in the third container 230 are mixed to form a solution with a concentration gradient distribution. A solution with a concentration gradient distribution means that the solution has multiple concentrations, and the multiple concentrations change gradually.

[0048] Preferably, the inclination angle α of the third container 230 is 10-15°; the rotation speed of the rotating table 240 is 10 r / min, and the rotation time of the rotating table 240 is 6-8 min. Exemplarily, the inclination angle α of the third container 230 is 10°, 11°, 12°, 13°, 14° or 15°. The inclination angle of the third container 230 refers to the angle between the third container 230 and the horizontal direction, or the angle between the third container 230 and the rotating table 240.

[0049] After the third container 230 is tilted and rotated, the third container 230 is placed vertically, so that the first silicon aerogel precursor and the second silicon aerogel precursor are mixed to form a solution with a concentration gradient distribution.

[0050] Step 140: After the rotation is completed, the solution obtained in step 130 is subjected to solvent exchange.

[0051] Specifically, the solution obtained in step 130 is soaked in ethanol, and the ethanol is replaced once a day. After 1 to 3 replacements, the solvent exchange is completed, and the original solvent tetraethoxysilane in the solution can be replaced by ethanol.

[0052] Step 150: Using ultraviolet light to gel the solution to obtain a gel, and drying the gel to remove the solvent to obtain an aerogel layer.

[0053] Specifically, after the solvent replacement is completed, ultraviolet light is used to accelerate the solidification of the solution. For example, the ultraviolet light irradiation time is 2 days.

[0054] Before drying, a solvent exchange step can be performed to remove low-boiling point solvents such as silane in the gel, thereby preventing cracks from forming during the drying process and reducing the generation of stress in the aerogel network; the present invention allows the removal of solvents without damaging the aerogel structure, thereby retaining its high porosity and excellent thermal insulation properties while maintaining the mechanical strength and transparency of the aerogel.

[0055] The performance of the ship glass of the present application is described in detail below in conjunction with Examples 1 to 3.

[0056] Example 1 The method for preparing the ship glass of this embodiment comprises the following steps: Step 100: Tetraethoxysilane, ethanol and deionized water are mixed evenly, tetrabutyl titanate is added to the mixture, and the mass ratio of tetraethoxysilane, ethanol, deionized water and tetrabutyl titanate is 1:4:2:6, ammonia water is added to adjust the pH of the solution to 7.2, and a sol-gel reaction is performed to obtain a first silicon aerogel precursor containing titanium oxide.

[0057] Tetraethoxysilane, ethanol and deionized water are mixed evenly, tetrabutyl titanate is added to the mixture, and the mass ratio of tetraethoxysilane, ethanol, deionized water and tetrabutyl titanate is 1:4:2:1, ammonia water is added to adjust the pH of the solution to 7.2, and a sol-gel reaction is carried out to obtain a second silicon aerogel precursor containing titanium oxide.

[0058] Add equal volumes of the first silicon aerogel precursor and the second silicon aerogel precursor to the first container 210 and the second container 220, respectively, transfer the second silicon aerogel precursor to the third container 230, use a syringe to inject the first aerogel precursor into the bottom of the third container 230, quickly withdraw the syringe and cover the cap. The third container 230 is placed on the rotating table 240 at an angle of 15°, the rotating speed of the rotating table 240 is controlled to be 10 r / min, and the rotating time of the rotating table 240 is 8 min.

[0059] After the rotation is completed, the mixed solution is immersed in ethanol, and the ethanol is replaced once a day. After two replacements, the solvent exchange is completed. Then, ultraviolet light is irradiated for 2 days to gel the solution to obtain a gel, and the solvent in the gel is removed by carbon dioxide supercritical drying technology to obtain an aerogel layer 130.

[0060] The pore size of the aerogel layer 130 obtained in this embodiment gradually decreases from 240 nm to 80 nm.

[0061] The aerogel layer 130 is fixed between the first glass substrate 110 and the second glass substrate 120 to obtain a first sample.

[0062] Example 2 The difference between this embodiment and embodiment 1 is that when preparing the first silicon aerogel precursor containing titanium oxide, the mass ratio of tetraethoxysilane, ethanol, deionized water and tetrabutyl titanate is 1:4:2:4.5.

[0063] When preparing the second silicon aerogel precursor containing titanium oxide, the mass ratio of tetraethoxysilane, ethanol, deionized water and tetrabutyl titanate is 1:4:2:1.5.

[0064] The pore size of the aerogel layer 130 obtained in this embodiment gradually decreases from 200 nm to 100 nm.

[0065] Example 3 The difference between this embodiment and embodiment 1 is that when preparing the first silicon aerogel precursor containing titanium oxide, the mass ratio of tetraethoxysilane, ethanol, deionized water and tetrabutyl titanate is 1:4:2:2.5.

[0066] When preparing the second silicon aerogel precursor containing titanium oxide, the mass ratio of tetraethoxysilane, ethanol, deionized water and tetrabutyl titanate is 1:4:2:1.5.

[0067] The pore size of the aerogel layer 130 obtained in this embodiment gradually decreases from 150 nm to 100 nm.

[0068] Comparative Example 1 The difference between this embodiment and embodiment 1 is that when preparing the first silicon aerogel precursor containing titanium oxide, the mass ratio of tetraethoxysilane, ethanol, deionized water and tetrabutyl titanate is 1:4:2:1.

[0069] When preparing the second silicon aerogel precursor containing titanium oxide, the mass ratio of tetraethoxysilane, ethanol, deionized water and tetrabutyl titanate is 1:4:2:1.

[0070] The average pore size of the aerogel layer 130 obtained in this embodiment is 80 nm.

[0071] The performance of the samples obtained in Examples 1 to 3 was compared with that of Comparative Example 1 and the traditional double-layer insulating glass, and the results are shown in Table 1 below. As can be seen from Table 1, the samples obtained in Examples 1 to 3 have a lower heat transfer coefficient than the traditional double-layer insulating glass, a lower UV transmittance than Comparative Example 1 and the traditional double-layer insulating glass, and a higher sound insulation than Comparative Example 1 and the traditional double-layer insulating glass. This shows that the ship glass of the present application has excellent heat insulation performance, sound absorption performance and UV protection effect.

[0072] Table 1 Performance comparison results of samples obtained in Examples 1 to 3, Comparative Example 1 and traditional double-layer insulating glass sample Heat transfer coefficient (W / m²·K) UV transmittance (%) Sound insulation(dB) Example 1 1.3 12 38 Example 2 1.1 18 36 Example 3 0.8 22 35 Comparative Example 1 0.65 25 33 Traditional double-layer insulating glass 1.5 50 30 It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0073] In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0074] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A ship glass, characterized in that: The invention comprises a first glass substrate, a second glass substrate and an aerogel layer, wherein the aerogel layer is fixed between the first glass substrate and the second glass substrate, the first glass substrate is located on a side away from the interior of a ship, the second glass substrate is located on a side close to the interior of the ship, and the aerogel layer is a silicon aerogel layer doped with titanium oxide, and the pore size of the aerogel layer gradually decreases from the first glass substrate to the second glass substrate.

2. The ship glass according to claim 1, characterized in that: From the first glass substrate to the second glass substrate, the pore size of the aerogel layer gradually decreases from 500 nm to 10 nm.

3. The ship glass according to claim 1 or 2, characterized in that: From the first glass substrate to the second glass substrate, the pore size of the aerogel layer gradually decreases from 240 nm to 80 nm.

4. A method for preparing the ship glass according to any one of claims 1 to 3, characterized in that: The steps include: Step 100: preparing an aerogel layer, wherein the aerogel layer is a silicon aerogel layer doped with titanium oxide, and the pore size of the aerogel layer gradually decreases from one side to the other side; Step 200: fixing the aerogel layer on the first glass substrate, and making the side of the aerogel layer with a larger pore size fit the first glass substrate; Step 300: attaching a second glass substrate to the side of the aerogel layer with a smaller pore size and curing the aerogel layer so that the aerogel layer is fixed between the first glass substrate and the second glass substrate.

5. The method for preparing ship glass according to claim 4, characterized in that: The following steps are also included: Step 400: coating a protective layer on the exposed surface of the aerogel layer, and curing the protective layer.

6. The method for preparing ship glass according to claim 4, characterized in that: The preparation of the aerogel layer comprises the following steps: Step 110: tetraethoxysilane, ethanol and deionized water are mixed to obtain a mixture, and different amounts of tetrabutyl titanate are added to the mixture to perform a sol-gel reaction to form a first silicon aerogel precursor and a second silicon aerogel precursor containing titanium oxide, wherein the content of tetrabutyl titanate in the first silicon aerogel precursor is higher than the content of tetrabutyl titanate in the second silicon aerogel precursor; Step 120: adding equal volumes of the first silicon aerogel precursor and the second silicon aerogel precursor to the first container and the second container respectively, transferring the second silicon aerogel precursor to the third container, and injecting the first aerogel precursor into the bottom of the third container using a syringe; Step 130: placing the third container on a rotating table and rotating it, and mixing the first silicon aerogel precursor and the second silicon aerogel precursor in the third container to form a solution with a concentration gradient distribution; Step 140: After the rotation is completed, the solution obtained in step 130 is subjected to solvent exchange; Step 150: using ultraviolet light to gel the solution to obtain a gel, and drying the gel to remove the solvent to obtain the aerogel layer.

7. The method for preparing ship glass according to claim 6, characterized in that: In step 110, after tetrabutyl titanate is mixed with tetraethoxysilane, ethanol and deionized water, an alkaline substance is added to the mixed solution to adjust the pH of the mixed solution to 7-8.

8. The method for preparing ship glass according to claim 7, characterized in that: In the first silicon aerogel precursor, the mass ratio of tetraethoxysilane, ethanol, deionized water and tetrabutyl titanate is 1:4:2:2.5-6; in the second silicon aerogel precursor, the mass ratio of tetraethoxysilane, ethanol, deionized water and tetrabutyl titanate is 1:4:2:1-1.

5.

9. The method for preparing ship glass according to claim 6, characterized in that: In step 130, the inclination angle α of the third container is 10-15°; the rotation speed of the rotating table is 10 r / min, and the rotation time of the rotating table is 6-8 min.

10. The method for preparing ship glass according to claim 6, characterized in that: In step 140, the solution obtained in step 130 is immersed in ethanol, and the ethanol is replaced once a day. After 1 to 3 replacements, the solvent exchange is completed.

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