JPH03177342A - Preparation of composite material of rubber with ceramic and composite material of rubber with ceramic - Google Patents

Abstract

PURPOSE:To enable to simply and readily prepare a rubber-ceramic composite material having a ceramic particle volume rate of >=50%, having excellent abrasion resistance and corrosion resistance and having flexibility by subjecting rubber particles and ceramic particles to a mixing process, a molding process and subsequently a melt-curing process. CONSTITUTION:A powdery or fine particular rubber material is mixed with ceramic particles in a prescribed ratio. The mixture is charged to a mold and subsequently heated and pressed to melt and cure the rubber material particles for the preparation of a rubber-ceramic composite material.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a method for manufacturing a composite material of a rubber material and ceramics, and a composite material of a rubber material and ceramics. That is, the present invention relates to a composite material in which the volume percentage of mixed ceramics is 50% or more, has excellent wear resistance, corrosion resistance, flexibility, etc., and is widely used for various purposes.

``Prior Art'' Rubber materials have the characteristics of being more flexible and easier to bend and deform than general resin materials, and are widely used in places where deformation is involved. In order to improve the abrasion resistance and corrosion resistance of such rubber materials, ceramic particles are mixed therein.

Conventionally, such a composite material of rubber material and ceramic inx has been manufactured by first kneading ceramic particles into a melted and fluidized rubber material, and then injection molding using a mold. In this manufacturing method, the fluidity of the rubber material containing ceramic particles greatly affects the formability of the composite material, so the content of the ceramic particles mixed in is greatly limited, and the volume percentage is 30%. It was considered impossible to do more than that. In other words, in the past, this type of composite material had a volume percentage of 30% or less of ceramic particles mixed therein.

"Problems to be Solved by the Invention" By the way, the following problems have been pointed out in such conventional examples.

In other words, this type of composite material obtained by conventional manufacturing methods is
Since the volume percentage of the mixed ceramic particles was 30% or less, there was a problem in that the wear resistance and corrosion resistance of the ceramics did not function effectively. In other words, it has been pointed out that conventional composite materials of this type have a large amount of rubber material and a small content of ceramics, so they are prone to wear and have poor durability, as well as being susceptible to corrosion.

This point was pointed out in the conventional example.

In view of the above circumstances, the present invention has been made to solve the problems of the conventional example. The object of the present invention is to propose a composite material of rubber material and ceramics that does not impair flexibility and is easy to manufacture, and a method for manufacturing the same.

"Means for Solving the Problem" The technical means of the present invention to achieve this object are as follows.

First, claim 1 is as follows. That is, this method of manufacturing a composite material of rubber material and ceramics includes the following mixing step, molding step, melting step, and molding step.

In the mixing step, rubber material particles and ceramic particles are mixed at a predetermined ratio. Next, in the molding step, the mixture of the rubber material particles and the ceramic particles is put into a mold.

In the melting step, the particles of the rubber material are then heated and pressurized to melt them, and the molten rubber material fills the spaces between the particles of the ceramics and joins them together. In the molding step, the rubber material is subsequently cured to obtain a composite material of the rubber material and the ceramic in which the volume percentage of the mixed ceramic particles is 50% or more.

Regarding claim 2, it is as follows. This composite material of rubber material and ceramics is made by melting and hardening rubber material particles and mixing ceramic particles therein, and the volume percentage of the ceramic particles is 50% or more.

"Function" Since the present invention consists of such means, it works as follows.

First, in the method for manufacturing a composite material according to claim 1, rubber material particles and ceramic particles mixed at a predetermined ratio are molded by following a mixing step, a molding step, a melting step, and a forming step. The rubber material particles are placed in a mold and heated and pressurized to melt and harden them, thereby obtaining a composite material in which the volume percentage of the mixed ceramic particles is 50% or more. In the composite material according to the second aspect of the present invention, the volume percentage of the ceramic particles mixed into the melted and hardened rubber material particles is 50% or more.

Therefore, the method for manufacturing a composite material of a rubber material and ceramics and the composite material according to claims 1 and 2 are as follows.

First, this composite material is made by first mixing rubber material particles and ceramic particles, and then mixing the rubber material particles and then adding ceramic particles after melting and fluidizing the rubber material as in the past. Obtained by melt-hardening particles. Since the bottom shape of this composite material is not affected by the fluidity of the rubber material, the content of ceramic particles mixed in can be increased to over 50% by volume, and it has excellent wear resistance and corrosion resistance. .

Second, this composite material does not impair the properties of rubber materials, and is more flexible and easier to bend than resin materials.

Thirdly, such composite materials require a mixing process.

It is easily manufactured by following the molding process, melting process, and molding process.

"Example" The present invention will be described in detail below based on the example shown in the drawings.

1 and 2 provide a detailed explanation of the present invention, with FIG. 1 being an enlarged explanatory view of the main parts thereof, and FIG. 2 being an external perspective view.

First, its configuration etc. will be explained.

This composite material l undergoes the following mixing process, molding process, melting process,
Manufactured by a manufacturing method that includes a molding process.

First, in the mixing step, particles of the rubber material 2, particles of the ceramic 3, and a crosslinking agent are mixed. To explain this in detail, as the rubber material 2, alphine rubber, polyester rubber, polyurethane rubber, shrimp crosshydrin rubber, latex, etc. are used, but it is also possible to use various other rubbers. Moreover, this rubber material 2 is in the form of powder or fine particles.

Used in other grain forms. Next, ceramics 3
As the material, alumina-based, silica-based, and various other materials are used. The ceramics 3 can be used in various granular forms, such as powder, fine particles, or fibers formed from these.

In this mixing step, the particles of the rubber material 2 and the particles of the ceramics 3 are stirred and mixed at a predetermined ratio such that the volume fraction of the particles of the ceramics 3 is 50% or more.

Next, in the molding step, the mixture of the particles of the rubber material 2 and the particles of the ceramics 3 is put into a molding wall (not shown) having a shape corresponding to the usage mode of the composite material 1.

After that, in the melting process, this molded rubber material 2
A mixture of particles of ceramic 3 and particles of ceramic 3 is heated and pressurized. As a result, the particles of the rubber material 2 are melted, and the molten rubber material 2 thoroughly penetrates into the gaps between the particles of the ceramics 3 by capillary action, functioning as a binder and filling the spaces between the particles of the ceramics 3. Bonds strongly.

In the post-molding process, the rubber material 2 melted in the melting process is cured to produce a predetermined composite material 1. In other words, the composite material 1 of the rubber material 2 and the ceramics 3 is made by melting and hardening the particles of the rubber material 2 and then inserting the ceramics 3 into the composite material 1.
0 particles are mixed, and the volume fraction of the particles of the ceramic 3 is 50% or more.

The composite material 1 and the method for manufacturing the same according to the present invention have the above-described configuration.

Therefore, it becomes as follows.

In this manufacturing method, particles of the rubber material 2 and particles of the ceramic 3, which have been mixed at a predetermined ratio in a mixing step, are first put into a molding wall in a molding step.

Thereafter, in a melting step, the particles of the rubber material 2 are melted by heating and pressurizing, filling the spaces between the particles of the ceramics 3 and joining them. Then, in the molding process, the molten rubber material 2 is cured, thereby obtaining a predetermined composite material 1. That is, in this composite material 1, the volume percentage of the particles of the ceramic 3 mixed into the melted and hardened particles of the rubber material 2 is 50% or more.

Now, regarding this composite material l and its manufacturing method, the following 1. Second. It will be like the third one.

First, this composite material 1 is made by first melting and fluidizing the rubber material 2 and then kneading and mixing the particles of the ceramic 3, as in the conventional method. After mixing with the particles, the particles of the rubber material 2 are melted and hardened.

As a result, the molding of the composite material 1 is not affected by the fluidity of the rubber material 2, and the content of the mixed ceramics 3 is not limited to 30% or less in terms of volume percentage.

Therefore, in this composite material 1, the content of the mixed ceramic 3 particles, that is, the volume thereof, can be increased to 50% or more in terms of volume percentage, and the composite material 1 has excellent wear resistance and corrosion resistance. For example, a corrosive substance that attempts to penetrate into the interior of a composite material from the outside,
As described above, it is effectively blocked by a large amount of ceramics 3, and as a result, the rubber material 2 of this composite material 1 is hard to corrode and has excellent corrosion resistance.

Second, although this composite material 1 has a large amount of ceramics 3, the characteristics of the rubber material 2 are not impaired.

In other words, this composite material 1 is more flexible and easier to bend and deform than resin materials or the like.

Thirdly, such a composite material 1 can be simply and easily manufactured by sequentially following the mixing process, molding process, melting process, and molding process as described above.

"Effects of the Invention" As explained above, in the method for producing a composite material of a rubber material and ceramics and the composite material of a rubber material and ceramics according to the present invention, the volume fraction of the mixed Ceragox particles is 50%. % or more, the following effects are exhibited.

That is, firstly, this composite material 1 has excellent wear resistance and corrosion resistance, and is resistant to wear, improving durability and preventing corrosion. Secondly, this composite material maintains its flexibility without loss, and can be widely used in places where deformation is involved. Thirdly, such composite materials are easy to manufacture and are cost effective.

In this way, the problems that existed in this type of conventional example are completely eliminated, and the effects of the present invention are remarkable and great.

[Brief explanation of drawings]

FIG. 1 and FIG. 2 serve to explain a method for manufacturing a composite material of a rubber material and ceramics according to the present invention, and an example of a composite material of a rubber material and ceramics. FIG. 1 is an enlarged explanatory view of the main parts thereof, and FIG. 2 is an external perspective view thereof. 1...Composite material 2...Rubber material 3...Ceramics

Claims (2)

[Claims] (1) A mixing step of mixing rubber material particles and ceramic particles in a predetermined ratio, and then placing the thus mixed rubber material particles and ceramic particles into a mold. The rubber material particles are melted by heating and pressurizing the mold.
A melting process in which the molten rubber material fills the spaces between the particles of the ceramic and joins them; and a melting step in which the rubber material is cured afterward, so that the volume percentage of the mixed ceramic particles is 50% or more. A method for manufacturing a composite material of a rubber material and a ceramic material, comprising: a molding step to obtain a composite material with the ceramic material. (2) A composite material of rubber material and ceramics, characterized in that ceramic particles are mixed into melted and hardened rubber material particles, and the volume percentage of the ceramic particles is 50% or more. .