1. The catalyst for accelerating the chemical toughening of the glass is characterized by comprising the following components in parts by weight: 60-90 parts of potassium carbonate, 10-40 parts of aluminum oxide, 2-8 parts of potassium chloride, 2-8 parts of potassium hydroxide and 10-25 parts of potassium permanganate.

2. The catalyst for accelerating chemical tempering of glass according to claim 1, wherein the potassium carbonate, the aluminum oxide, the potassium chloride, the potassium hydroxide and the potassium permanganate are all in a powder state, and the powder size is 1-2 mm in diameter.

3. The catalyst for accelerating chemical tempering of glass according to claim 1, which comprises the following components in parts by weight: 70-80 parts of potassium carbonate, 20-30 parts of aluminum oxide, 4-6 parts of potassium chloride, 4-6 parts of potassium hydroxide and 15-20 parts of potassium permanganate.

4. The use method of the glass chemical toughening acceleration catalyst according to any one of claims 1 to 3, characterized by comprising the steps of:

101. sequentially mixing potassium carbonate, aluminum oxide, potassium chloride, potassium hydroxide and potassium permanganate, and uniformly stirring to obtain a catalyst mixture;

102. proportionally mixing the catalyst mixture prepared in the step 101 and powdery potassium nitrate serving as a main material, and putting the mixture and the powdery potassium nitrate into a chemical toughening furnace together;

103. after the step 102, heating to completely melt the potassium nitrate, and preserving the heat for a certain time at a certain temperature after melting;

104. and step 103, raising the temperature, and carrying out batch processing, namely soaking the glass in molten potassium nitrate to carry out ion exchange reaction for a certain time to obtain the toughened glass.

5. The use method of the catalyst for accelerating chemical tempering of glass according to claim 4, wherein in step 101, potassium carbonate, aluminum oxide, potassium chloride, potassium hydroxide and potassium permanganate are mixed clockwise by using a stirrer, and are stirred uniformly.

6. The use method of the catalyst for accelerating chemical tempering of glass according to claim 4, wherein the ratio of the catalyst mixture to the main material potassium nitrate in the step 102 is 1: 100-3: 100.

7. the use method of the glass chemical toughening acceleration catalyst according to claim 4, wherein the heating temperature in the step 103 is 360-420 ℃, the heat preservation temperature is 380-400 ℃, and the heat preservation time is 20-26 h.

8. The use method of the glass chemical toughening acceleration catalyst according to claim 4, wherein the temperature rise in the step 104 is 410-470 ℃ and the reaction time is 3-6 h.

Background

At present, toughened glass in China and abroad mainly occupies a main share of traditional physical toughening, and the traditional physical toughening cannot be realized along with the requirements on the self weight reduction of products, the improvement on the optical performance of the products, the mechanical strength and other performance requirements in recent years, while chemical toughening perfectly makes up the blank of the harsh requirements.

At present, glass chemical tempering is to exchange sodium ions in glass and potassium ions in molten salt by soaking the glass in molten potassium nitrate, usually 10-16 h of reaction time is needed, compressive stress is formed on the surface of the glass, and the purpose of enhancing the strength of the glass is achieved.

Therefore, the glass chemical toughening accelerating catalyst and the use method thereof are provided to solve the problems in the prior art and have important significance for application and popularization.

Disclosure of Invention

In view of the above, an object of the present invention is to provide a catalyst for accelerating chemical tempering of glass and a method for using the same, so as to achieve the purpose of reducing cost and increasing efficiency while reducing reaction time and obtaining the same surface stress.

In order to achieve the above object, the present application provides the following technical solutions.

The first technical scheme is as follows: a glass chemical toughening accelerating catalyst comprises the following components in parts by weight: 60-90 parts of potassium carbonate, 10-40 parts of aluminum oxide, 2-8 parts of potassium chloride, 2-8 parts of potassium hydroxide and 10-25 parts of potassium permanganate.

Preferably, the potassium carbonate, the aluminum oxide, the potassium chloride, the potassium hydroxide and the potassium permanganate are all in a powder state, and the powder size is 1-2 mm in diameter.

Preferably, the composition comprises the following components in parts by weight: 70-80 parts of potassium carbonate, 20-30 parts of aluminum oxide, 4-6 parts of potassium chloride, 4-6 parts of potassium hydroxide and 15-20 parts of potassium permanganate.

The second technical scheme is as follows: the application method of the glass chemical toughening accelerating catalyst comprises the following steps:

101. sequentially mixing potassium carbonate, aluminum oxide, potassium chloride, potassium hydroxide and potassium permanganate, and uniformly stirring to obtain a catalyst mixture;

102. proportionally mixing the catalyst mixture prepared in the step 101 and powdery potassium nitrate serving as a main material, and putting the mixture and the powdery potassium nitrate into a chemical toughening furnace together;

103. after the step 102, heating to completely melt the potassium nitrate, and preserving the heat for a certain time at a certain temperature after melting;

104. and step 103, raising the temperature, and carrying out batch processing, namely soaking the glass in molten potassium nitrate to carry out ion exchange reaction for a certain time to obtain the toughened glass.

Preferably, in step 101, potassium carbonate, aluminum oxide, potassium chloride, potassium hydroxide and potassium permanganate are mixed clockwise by using a stirrer, and are stirred uniformly.

Preferably, the ratio of the catalyst mixture to the main material potassium nitrate in the step 102 is 1: 100-3: 100.

preferably, in the step 103, the heating temperature is 360-420 ℃, the heat preservation temperature is 380-400 ℃, and the heat preservation time is 20-26 hours.

Preferably, the temperature is increased to 410-470 ℃ in the step 104, and the reaction time is 3-6 h.

The beneficial technical effects obtained by the invention are as follows:

1) the method can accelerate the exchange speed between sodium ions in the glass and potassium ions in the molten salt in the chemical toughening process of the glass, obviously shortens the chemical toughening reaction time from the original 10-16 h to 3-6 h on the basis of achieving the same chemical toughening effect, obviously reduces the comprehensive production cost, and improves the economic benefit;

2) the accelerating catalyst for chemically toughening the glass is prepared by proportioning potassium carbonate, aluminum oxide, potassium chloride, potassium hydroxide and potassium permanganate, and when the accelerating catalyst is used, the accelerating catalyst is added into a chemical toughening furnace together with the main material powdery potassium nitrate in proportion; firstly heating to completely melt the potassium nitrate, preserving heat for a certain time after melting, then raising the temperature, carrying out batch processing, soaking glass in the molten potassium nitrate to carry out ion exchange reaction, greatly reducing the reaction time on the premise of realizing the technical requirements, and achieving the purposes of cost reduction and efficiency improvement.

The foregoing description is only an overview of the technical solutions of the present application, so that the technical means of the present application can be more clearly understood and the present application can be implemented according to the content of the description, and in order to make the above and other objects, features and advantages of the present application more clearly understood, the following detailed description is made with reference to the preferred embodiments of the present application and the accompanying drawings.

The above and other objects, advantages and features of the present application will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a process flow diagram of a method for using a glass chemical tempering acceleration catalyst in one embodiment of the present disclosure.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. In the following description, specific details such as specific configurations and components are provided only to help the embodiments of the present application be fully understood. Accordingly, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, descriptions of well-known functions and constructions are omitted in the embodiments for clarity and conciseness.

It should be appreciated that reference throughout this specification to "one embodiment" or "the embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrase "one embodiment" or "the present embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Further, the present application may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, B exists alone, and A and B exist at the same time, and the term "/and" is used herein to describe another association object relationship, which means that two relationships may exist, for example, A/and B, may mean: a alone, and both a and B alone, and further, the character "/" in this document generally means that the former and latter associated objects are in an "or" relationship.

The term "at least one" herein is merely an association relationship describing an associated object, and means that there may be three relationships, for example, at least one of a and B, may mean: a exists alone, A and B exist simultaneously, and B exists alone.

It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion.

Example 1

A glass chemical toughening accelerating catalyst comprises the following components in parts by weight: 60 parts of potassium carbonate, 10 parts of aluminum oxide, 2 parts of potassium chloride, 2 parts of potassium hydroxide and 10 parts of potassium permanganate.

The potassium carbonate, the aluminum oxide, the potassium chloride, the potassium hydroxide and the potassium permanganate are all in a powder state, and the powder size is 1mm in diameter.

As shown in the attached figure 1, the application method of the glass chemical toughening accelerating catalyst comprises the following steps:

101. sequentially mixing potassium carbonate, aluminum oxide, potassium chloride, potassium hydroxide and potassium permanganate, and uniformly stirring to obtain a catalyst mixture.

Specifically, potassium carbonate, aluminum oxide, potassium chloride, potassium hydroxide and potassium permanganate are mixed clockwise by using a stirrer and are uniformly stirred.

102. Proportionally mixing the catalyst mixture prepared in the step 101 and powdery potassium nitrate serving as a main material, and putting the mixture and the powdery potassium nitrate into a chemical toughening furnace together; wherein, the ratio of the catalyst mixture to the main material potassium nitrate is 1: 100.

103. and (102) heating to completely melt the potassium nitrate at 360 ℃, and preserving the heat for a certain time at a certain temperature after melting, wherein the heat preservation temperature is 380 ℃ and the heat preservation time is 26 hours.

104. And 103, raising the temperature, and carrying out batch processing, wherein the temperature is raised to 410 ℃, namely soaking the glass in molten potassium nitrate, carrying out ion exchange reaction for a certain time, wherein the reaction time is 6 hours, and obtaining the toughened glass.

Example 2

A glass chemical toughening accelerating catalyst comprises the following components in parts by weight: 75 parts of potassium carbonate, 25 parts of aluminum oxide, 5 parts of potassium chloride, 5 parts of potassium hydroxide and 18 parts of potassium permanganate.

The potassium carbonate, the aluminum oxide, the potassium chloride, the potassium hydroxide and the potassium permanganate are all in a powder state, and the powder size is 1.5mm in diameter.

As shown in the attached figure 1, the application method of the glass chemical toughening accelerating catalyst comprises the following steps:

101. sequentially mixing potassium carbonate, aluminum oxide, potassium chloride, potassium hydroxide and potassium permanganate, and uniformly stirring to obtain a catalyst mixture.

Specifically, potassium carbonate, aluminum oxide, potassium chloride, potassium hydroxide and potassium permanganate are mixed clockwise by using a stirrer and are uniformly stirred.

102. Proportionally mixing the catalyst mixture prepared in the step 101 and powdery potassium nitrate serving as a main material, and putting the mixture and the powdery potassium nitrate into a chemical toughening furnace together; wherein, the ratio of the catalyst mixture to the main material potassium nitrate is 2: 100.

103. and (102) heating to completely melt the potassium nitrate at 390 ℃, and preserving the heat for 23 hours at 390 ℃ at a certain temperature after melting.

104. And 103, raising the temperature, and carrying out batch processing, wherein the temperature is raised to 440 ℃, namely, soaking the glass in molten potassium nitrate, carrying out ion exchange reaction for a certain time, wherein the reaction time is 4.5 hours, and thus obtaining the toughened glass.

Example 3

A glass chemical toughening accelerating catalyst comprises the following components in parts by weight: 90 parts of potassium carbonate, 40 parts of aluminum oxide, 8 parts of potassium chloride, 8 parts of potassium hydroxide and 25 parts of potassium permanganate.

The potassium carbonate, the aluminum oxide, the potassium chloride, the potassium hydroxide and the potassium permanganate are all in a powder state, and the powder size is 2mm in diameter.

As shown in the attached figure 1, the application method of the glass chemical toughening accelerating catalyst comprises the following steps:

101. sequentially mixing potassium carbonate, aluminum oxide, potassium chloride, potassium hydroxide and potassium permanganate, and uniformly stirring to obtain a catalyst mixture.

Specifically, potassium carbonate, aluminum oxide, potassium chloride, potassium hydroxide and potassium permanganate are mixed clockwise by using a stirrer and are uniformly stirred.

102. Proportionally mixing the catalyst mixture prepared in the step 101 and powdery potassium nitrate serving as a main material, and putting the mixture and the powdery potassium nitrate into a chemical toughening furnace together; wherein, the ratio of the catalyst mixture to the main material potassium nitrate is 3: 100.

103. and (4) after the step 102, heating to completely melt the potassium nitrate, wherein the heating temperature is 420 ℃, and after melting, keeping the temperature for a certain time at a certain temperature, wherein the temperature for keeping the temperature is 400 ℃ and the time for keeping the temperature for 20 hours.

104. And 103, raising the temperature, and carrying out batch processing, wherein the temperature is raised to 470 ℃, namely soaking the glass in molten potassium nitrate, carrying out ion exchange reaction for a certain time, wherein the reaction time is 3 hours, and obtaining the toughened glass.

In comparison with the conventional chemical tempering method, the chemical tempering acceleration catalyst for glass and the use method of the chemical tempering acceleration catalyst for glass in the above examples 1 to 3 were used, and the results of the chemical tempering for glass in the control group were shown in table 1, in which the glass was immersed in molten potassium nitrate and sodium ions in the glass were exchanged with potassium ions in the molten salt without adding the catalyst.

TABLE 1

As can be seen from table 1, compared with the control group, on the basis of meeting the same technical requirements, the glass chemical toughening acceleration catalyst and the use method of the glass chemical toughening acceleration catalyst in the embodiments 1 to 3 can accelerate the exchange speed of sodium ions in glass and potassium ions in molten salt, obviously shorten the reaction time, and achieve the purposes of cost reduction and efficiency improvement.

Example 4

A glass chemical toughening accelerating catalyst comprises the following components in parts by weight: 70-80 parts of potassium carbonate, 20-30 parts of aluminum oxide, 4-6 parts of potassium chloride, 4-6 parts of potassium hydroxide and 15-20 parts of potassium permanganate.

The potassium carbonate, the aluminum oxide, the potassium chloride, the potassium hydroxide and the potassium permanganate are all in a powder state, and the powder size is 1-2 mm in diameter.

As shown in the attached figure 1, the application method of the glass chemical toughening accelerating catalyst comprises the following steps:

101. sequentially mixing potassium carbonate, aluminum oxide, potassium chloride, potassium hydroxide and potassium permanganate, and uniformly stirring to obtain a catalyst mixture.

Specifically, potassium carbonate, aluminum oxide, potassium chloride, potassium hydroxide and potassium permanganate are mixed clockwise by using a stirrer and are uniformly stirred.

102. Proportionally mixing the catalyst mixture prepared in the step 101 and powdery potassium nitrate serving as a main material, and putting the mixture and the powdery potassium nitrate into a chemical toughening furnace together; wherein, the ratio of the catalyst mixture to the main material potassium nitrate is 1.5: 100-2.5: 100.

103. and step 102, heating to completely melt the potassium nitrate at 380-400 ℃, and preserving the heat for a certain time at a certain temperature after melting, wherein the heat preservation temperature is 385-395 ℃, and the heat preservation time is 22-24 hours.

104. And 103, raising the temperature, and carrying out batch processing, wherein the temperature is raised to 420-460 ℃, namely soaking the glass in molten potassium nitrate, carrying out ion exchange reaction for a certain time, wherein the reaction time is 4-5 h, and obtaining the toughened glass.

The above description is only a preferred embodiment of the present invention, and it is not intended to limit the scope of the present invention, and various modifications and changes may be made by those skilled in the art. Variations, modifications, substitutions, integrations and parameter changes of the embodiments may be made without departing from the principle and spirit of the invention, which may be within the spirit and principle of the invention, by conventional substitution or may realize the same function.