CN111362630A - Mineral wool sound absorption board capable of releasing negative oxygen ions and preparation method thereof - Google Patents

Abstract

A mineral wool acoustic board capable of releasing negative oxygen ions and a preparation method thereof. The plate blank of the mineral wool sound absorption board comprises mineral wool fibers and tourmaline powder. The preparation method comprises the following steps: adding mineral wool fiber and tourmaline powder into water, and stirring; adding inorganic reinforced fiber and adhesive, stirring and pulping; adding a flocculating agent, and stirring for flocculation; filtering, forming and drying to obtain a plate blank of the mineral wool sound absorption plate; and polishing the surface of the plate blank, spraying water-based paint, and drying to obtain the energy type mineral wool decorative acoustic board. The mineral wool sound absorption board can release more negative oxygen ions, has the function of purifying the environment, and is simple in preparation process and low in cost.

Description

Mineral wool sound absorption board capable of releasing negative oxygen ions and preparation method thereof

Technical Field

The application relates to the field of inorganic building materials, in particular to a mineral wool sound absorption board capable of releasing negative oxygen ions and a preparation method thereof.

Background

The mineral wool sound-absorbing board is a decorative board made of mineral wool fibers and has remarkable sound-absorbing, fireproof and heat-insulating properties. Because of its low density, it can process various exquisite patterns and designs on the surface, so it has excellent decorative performance. In the past, the mineral wool sound absorption board is mainly applied to places with sound absorption requirements, such as conference halls, libraries, concert halls, high-grade hotels, gymnasiums, hospitals, office buildings, production workshops and the like. However, with the improvement of the quality of life of people, residents have own home cinemas and have new requirements on the sound absorption and decoration effects of home decoration, so that the mineral wool decorative sound absorption board becomes a popular material for home decoration of residents and gradually enters families.

With the change of times, people are pursuing individuality more and more, and the requirements for decorative materials are more and more diversified, so that users not only require patterns and decorative effects of the mineral wool sound-absorbing board with more changes, but also expect that the mineral wool sound-absorbing board has more functions, such as functions of resisting bacteria and resisting mildew, adjusting air humidity, absorbing harmful gases, emitting faint scent and the like. Therefore, the multifunction of the mineral wool sound absorption board is an important development trend.

Disclosure of Invention

The application provides a mineral wool acoustic board capable of releasing negative oxygen ions and a preparation method thereof.

The application provides a mineral wool acoustic board capable of releasing negative oxygen ions, wherein mineral wool fibers and tourmaline powder are included in a board blank.

In the embodiment of the present application, the content of the tourmaline powder may be 0.1 to 1 part by weight based on 100 parts by weight of the content of the mineral wool fiber.

In an embodiment of the present application, the particle size of the tourmaline powder may be 1000-2500 mesh. The mineral wool sound board prepared from the tourmaline powder with the granularity has a good negative ion release effect.

In an embodiment of the present application, the mineral wool sound-absorbing panel may further include inorganic reinforcing fibers, a binder, and a flocculant, and the inorganic reinforcing fibers may be included in an amount of 5 to 10 parts by weight, the binder may be included in an amount of 20 to 25 parts by weight, and the flocculant may be included in an amount of 1 to 2 parts by weight, based on 100 parts by weight of the mineral wool fibers.

In embodiments of the present application, the inorganic reinforcing fibers may be selected from any one or more of wollastonite fibers, brucite fibers, and sepiolite fibers.

In embodiments of the present application, the binder may be selected from either or both of clay and starch.

In embodiments herein, the flocculant may be selected from any one or more of aluminum sulfate, polyacrylamide, ferric chloride, ferrous sulfate, and polyaluminum chloride.

The application also provides a preparation method of the mineral wool acoustic board capable of releasing negative oxygen ions, which comprises the following steps:

adding mineral wool fiber and tourmaline powder into water, and stirring;

adding inorganic reinforced fiber and adhesive, stirring and pulping;

adding a flocculating agent, and stirring for flocculation;

filtering, forming and drying to obtain a plate blank of the mineral wool sound absorption plate;

and polishing the surface of the plate blank, spraying water-based paint, and drying to obtain the energy type mineral wool decorative acoustic board.

The mineral wool sound-absorbing board takes mineral wool fibers as a main raw material, and tourmaline powder is introduced in a mode of mixing tourmaline powder with other raw materials such as mineral wool fibers and the like in the preparation process, so that the prepared mineral wool sound-absorbing board obtains the function of releasing negative oxygen ions, can release more negative oxygen ions to purify the environment, and provides a comfortable human residence and working environment for people; at the same time, the thermal insulation properties, the bending strength and the bulk density of the mineral wool sound absorption panel are not adversely affected. Therefore, the mineral wool sound absorption board has multiple functions.

Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. Other advantages of the present application may be realized and attained by the instrumentalities and methods described in the specification.

Detailed Description

Hereinafter, embodiments of the present application will be described in detail to make objects, technical solutions and advantages of the present application more apparent. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

The starting materials used in the following examples and comparative examples are all common commercial products unless otherwise specified.

Example 1

Adding 100 g of mineral wool fiber and 1.0 g of tourmaline powder with the granularity of 1000 meshes into 3.0L of water, and uniformly stirring; then adding 10 g of wollastonite fiber, 10 g of clay and 10 g of starch, and continuing stirring and pulping; finally, adding 1 g of ferric chloride and 0.5g of polyacrylamide, stirring, flocculating, filtering, forming, and drying at 180 ℃ for 1h to obtain a plate blank; and polishing the surface of the plate blank, spraying water-based paint, drying, and arranging pattern holes to obtain the mineral wool plate with the negative oxygen ion releasing performance, wherein the thickness of the mineral wool plate is 12 mm.

Example 2

Adding 100 g of mineral wool fiber and 0.5g of tourmaline powder with the granularity of 1500 meshes into 3.0L of water, and uniformly stirring; then adding 10 g of sepiolite fiber, 15 g of clay and 10 g of starch, and continuing stirring and pulping; finally, adding 0.5g of aluminum sulfate and 0.5g of polyacrylamide, stirring, flocculating, filtering, forming, and drying at 180 ℃ for 1h to obtain a plate blank; and polishing the surface of the plate blank, spraying water-based paint, drying, and arranging pattern holes to obtain the mineral wool plate with the negative oxygen ion releasing performance, wherein the thickness of the mineral wool plate is 12 mm.

Example 3

Adding 100 g of mineral wool fiber and 0.2 g of tourmaline powder with the granularity of 2000 meshes into 3.0L of water, and uniformly stirring; then adding 10 g of brucite fiber, 15 g of clay and 10 g of starch, and continuing stirring and pulping; finally, adding 0.5g of polyaluminium chloride and 0.5g of polyacrylamide, stirring, flocculating, filtering, forming, and drying at 180 ℃ for 1h to obtain a plate blank; and polishing the surface of the plate blank, spraying water-based paint, drying, and arranging pattern holes to obtain the mineral wool plate with the negative oxygen ion releasing performance, wherein the thickness of the mineral wool plate is 12 mm.

Example 4

Adding 100 g of mineral wool fiber and 0.1 g of tourmaline powder with the granularity of 2500 meshes into 3.0L of water, and uniformly stirring; then adding 5g of wollastonite fiber, 15 g of clay and 10 g of starch, and continuing stirring and pulping; finally, adding 1.5 g of ferrous sulfate and 0.5g of polyacrylamide, stirring, flocculating, filtering, forming, and drying at 180 ℃ for 1h to obtain a plate blank; and polishing the surface of the plate blank, spraying water-based paint, drying, and arranging pattern holes to obtain the mineral wool plate with the negative oxygen ion releasing performance, wherein the thickness of the mineral wool plate is 12 mm.

Comparative example 1

This comparative example differs from example 1 only in that: tourmaline powder was not added.

Performance testing

1. Testing of Heat insulating Properties, mechanical Properties and Density

The thermal insulation performance, the bending strength and the density of the mineral wool sound-absorbing panels prepared in the above examples and comparative examples were measured according to the Chinese national standard GB/T25998-.

2. Anion release test

The mineral wool sound-absorbing panels prepared in the above examples and comparative examples were tested for the release amount of negative oxygen ions by a static method according to JC/T2040-2010 "negative ion functional building interior decoration Material". The test results are shown in table 1.

TABLE 1

It can be seen that the mineral wool decorative acoustic board of the embodiment of the present application obtains a negative oxygen ion releasing function by introducing tourmaline powder in a manner of mixing tourmaline powder with other raw materials during the manufacturing process, while the heat insulating property, the bending strength and the bulk density are not adversely affected. It can be seen from examples 1 to 4 that the higher the content of tourmaline powder, the more negative ions can be released from the obtained mineral wool decorative acoustic panel.

Although the embodiments disclosed in the present application are described above, the descriptions are only for the convenience of understanding the present application, and are not intended to limit the present application. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims.

Claims (8)

1. A mineral wool sound absorption board capable of releasing negative oxygen ions comprises mineral wool fibers and tourmaline powder in a board blank.

2. The mineral wool sound-absorbing panel as claimed in claim 1, wherein the tourmaline powder is contained in an amount of 0.1 to 1 part by weight based on 100 parts by weight of the mineral wool fiber.

3. The mineral wool acoustic panel as defined in claim 1, wherein the tourmaline powder has a particle size of 1000-2500 mesh.

4. The mineral wool sound absorption panel as defined in any one of claims 1 to 3, further comprising inorganic reinforcing fibers, a binder and a flocculant in a mat, and the content of the inorganic reinforcing fibers is 5 to 10 parts by weight, the content of the binder is 20 to 25 parts by weight and the content of the flocculant is 1 to 2 parts by weight based on 100 parts by weight of the content of the mineral wool fibers.

5. The mineral wool acoustic panel as claimed in claim 4, wherein the inorganic reinforcing fibers are selected from any one or more of wollastonite fibers, brucite fibers and sepiolite fibers.

6. The mineral wool sound absorption panel as defined in claim 4, wherein the binder is selected from any one or both of clay and starch.

7. The mineral wool acoustic panel according to claim 4, wherein the flocculating agent is selected from any one or more of aluminium sulphate, polyacrylamide, ferric chloride, ferrous sulphate and polyaluminium chloride.

8. A method of producing a mineral wool sound absorption panel according to any one of claims 1 to 7, comprising:

adding mineral wool fiber and tourmaline powder into water, and stirring;

adding inorganic reinforced fiber and adhesive, stirring and pulping;

adding a flocculating agent, and stirring for flocculation;

filtering, forming and drying to obtain a plate blank of the mineral wool sound absorption plate;

and polishing the surface of the plate blank, spraying water-based paint, and drying to obtain the energy type mineral wool decorative acoustic board.