JPS6047004A - Production of organic substance powder - Google Patents

Abstract

PURPOSE:To facilitate the production of a fine organic substance powder, by polymerizing a monomer gas by feeding it to a high-frequency plasma zone of a carrier gas while keeping the powder suspended in space. CONSTITUTION:A fine organic substance powder is easily produced by plasma polymerization by feeding a monomer gas to a high-frequency plasma zone of a carrier gas in a vacuum tank. Further, an organic substance coating layer of a uniform film thickness is easily formed by passing a powder of various materials such as metal, inorganic or organic substance. For example, a powder and a gas, such as Ar, from a carrier gas inlet 4 are fed from a powder inlet 3 to a reaction vessel 1. The powder descends while it is suspended in the carrier gas and, during passing through plasma generated by the high-frequency coil 2, a monomer fed from a monomer gas inlet 5 and then activated is polymerized on the surfaces of the powder particles to form coatings thereon. The powder is then collected in a trap.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing an organic powder, a powder containing fine grains made of a different type of grain, and a coating of an organic substance on the surface of the 1J5 powder. Powder g) Regarding the manufacturing method.

Until now, there has been no known method for producing fine powders, especially those that can be widely applied to various volatile materials.Also, according to the literature, oxygen plasma treatment of gas chromatography fillers has not been known. The fit is improved by improving the degree of blood division and adhesion by oxygen plasma treatment of evaporated polyethylene.
Ufu is known. However, few examples of powder coatings are known.

If it is possible to apply a finite substance coating to the surface of each particle of fine powder, many effects such as those listed below can be expected.
This will open up possibilities for improving the performance of the element @υ and developing 11 materials.

This invention is based on the plasma polymerization process and the plasma polymerization process.
The present invention aims to provide a new method for obtaining fine powder of organoleptics by the texture reaction that occurs in the molten metal, or for coating six sides of the powder particles with organoleptics.

Figure @1 shows an example of a reactor for carrying out this invention. A powder inlet port 3 is installed in the upper part of the reactor 1 having a high frequency coil 2, and the coated powder is introduced into the reactor 1 together with the gas from the carrier cass introduction D4 of the Arson V track. A power inlet 5 for one or more monomer gases is provided downstream of the discharge coil 2 . This is a powder trap that collects the 6N coated powder, and 7 is an exhaust port.

The powder flowing down with carriers suspended in it from Hirojin 1'4 is introduced into the 'F' region of this glazma region and activated while passing through the plasma caused by the high frequency coil 2. The monomers are completely coated by bonding on their six faces.

It is convenient to control the thickness of the coating by controlling the falling speed of the powder, and it is possible to control the thickness of the carrier sludge from the gas introduction Ll 4 and strictly control the exhaust. I can do it. It is also possible to control the falling velocity by changing the flow direction of the carrier gas Q, r'f-lifting the powder by a laser, etc.

Chemical coatings tend to cause particles to stick to each other or to the walls of the reactor, but to prevent this, the temperature of the reactor can be increased to increase cross-linking of the coating film and reduce the amount of low-molecular-weight molecules. It is best to remove it and re-release it from the vessel wall.

1k, not only the plasma polymerization of monomer is carried out through a powder blowing hole, but also no powder is introduced.

By performing the process using a lasma, it is possible to obtain a fine powder of organic silicon.

In this way, the fine powder obtained in step 17 is a cross-linked powder (tJS), mil! ? It can be used as a lactic powder.

It can be used to generate ultra-fine powder fall active legs using the amount of heat in the air.

An example is shown below.

l) Synthesis of styrene powder and carbide powder 1tu degree v 5
1' - Use of a cylindrical reaction vessel with rows of electrodes, 0.
A powder was synthesized by generating plasma by applying a 13.5 MB 2.50 W υ radio frequency to the argon-sgoolene crystal autoscum at a pressure of 3 tOrr υ.

This powder is about 50? +g/c- density, atmospheric IE
! 7) By heating to 500° C. in Ar gas, the mixture was carbonized without dissolving to obtain carbide powder.

2) Coat ink collection of crow berent 1 and
A coating of uniform thickness was obtained by coating a glass pellet with a diameter of 1 µm.

As a monomer, styrene, ethane, tetramethyltin, tetramethylsilane, etc. can be used. , A.U.

I coated 71c glass pellets with a uniform thickness of 1b using AL'75 coat ink.

In this invention, as described above, monomer gas is introduced into the flask area A and mixed with the gauze while suspended in the space, so that fine powder can be obtained in no time. By passing the powder of each extractive species, such as substances and foreign matter υ, over the space between the layers 822, a uniform coating layer of substances can be formed on the film #-v, which is extremely I'Fr111i. It is something.

[Brief explanation of drawings]

Drawing U shows an example of a reaction apparatus used in the method of this invention, and is a rapid turnaround. Reactor 2: High frequency coil 3: Powder inlet 4: Carrier gas inlet 5: Monomer inlet 6: Powder trap 7: Exhaust port

Claims (1)

[Claims] 1) Method 2 for producing organic powder, which comprises introducing a monomer gas into a colasian plasma region of a carrier cassette in a vacuum chamber, and causing plasma polymerization to occur in a space near the region. )', a monomer gas is introduced into the high-frequency plasma region of the carrier scum, the powder particles are bent through this region, and the surface of the powder particles is uniformly coated by plasma polymerization. Method for producing powder coated with an organic substance that has a special feature of forming a coating film