JPH0859882A - Production of filler for plastic - Google Patents

Production of filler for plastic

Info

Publication number
JPH0859882A
JPH0859882A JP22104294A JP22104294A JPH0859882A JP H0859882 A JPH0859882 A JP H0859882A JP 22104294 A JP22104294 A JP 22104294A JP 22104294 A JP22104294 A JP 22104294A JP H0859882 A JPH0859882 A JP H0859882A
Authority
JP
Japan
Prior art keywords
coupling agent
filler
starting material
raw material
heating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP22104294A
Other languages
Japanese (ja)
Inventor
Shuko Sugiyama
杉山周宏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sugiyama Heavy Industrial Co Ltd
Original Assignee
Sugiyama Heavy Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sugiyama Heavy Industrial Co Ltd filed Critical Sugiyama Heavy Industrial Co Ltd
Priority to JP22104294A priority Critical patent/JPH0859882A/en
Publication of JPH0859882A publication Critical patent/JPH0859882A/en
Pending legal-status Critical Current

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  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE: To produce a filler for plastics which can minimize the necessary amount of a coupling agent to be added. CONSTITUTION: A coupling agent dissolved in water or an alcohol and an upheated starting material for a filler are agitated and high-frequency-heated. Since the unheated starting material and the coupling agent are agitated, the vaporization and volatilization of the coupling solution does not occur when the added coupling agent is brought into contact with the starting material. Therefore, the coupling agent can be uniformly adhered to the starting material. Since the high-frequency heating is performed after the agitation, a localozed phenomenon of forming functional groups by the heat build up due to vibration of molecules of water or an alcohol as the solvent for the coupling agent on the surfaces of particles of the starting material arises to firmly adhere the coupling agent to the surfaces of particles of the starting material.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明はプラスチックの増量材や
強化材として用いられるプラスチック用充填剤の製造方
法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a filler for plastics used as a filler and a reinforcing material for plastics.

【0002】[0002]

【従来の技術】一般に、この種の充填材はアルミナ、マ
イカ、シリカ、石英粉、タルク等の充填剤原料とプラス
チック母剤との接着性を向上させるため、充填剤原料の
粒子表面にシラン等のカップリング剤がコーティングさ
れている。かかる充填剤を製造するための従来の方法を
図2に示すに、まず、カップリング剤が充填剤原料に良
好に付着するように、予め充填剤原料を電熱線ヒーター
や赤外線ヒーターを用いて約80℃に加熱しておき、加
熱した充填剤原料をミキサー10に投入し、その上から
水またはメタノール液に溶かしたカップリング剤をポン
プ11から滴下するか、またはスプレーで噴霧しながら
攪拌し、しかる後、冷却して解砕している。
2. Description of the Related Art Generally, this type of filler is used to improve the adhesiveness between a filler raw material such as alumina, mica, silica, quartz powder, talc and the plastic base material, and silane or the like on the particle surface of the filler raw material. Coupling agent is coated. A conventional method for producing such a filler is shown in FIG. 2. First, the filler raw material is preliminarily heated by using a heating wire heater or an infrared heater so that the coupling agent adheres well to the filler raw material. The mixture is heated to 80 ° C., the heated filler raw material is charged into the mixer 10, and the coupling agent dissolved in water or a methanol liquid is dropped from the pump 11 or stirred while spraying, Then, it is cooled and crushed.

【0003】[0003]

【発明が解決しようとする課題】従来の充填剤製造方法
においては、充填剤原料にカップリング剤の溶液を滴下
または噴霧すると、カップリング剤の溶剤である水ある
いはメタノールが予め加熱された充填剤原料に触れて瞬
間的に蒸発または揮発し、このときカップリング剤が充
填剤原料表面から飛散する。そのため、充填剤原料全体
をカップリング剤で均一にコーティングするには理論所
要値の2ないし2.5倍のカップリング剤を添加する必
要がある。本発明はかかる問題点に鑑み、カップリング
剤の添加量を可及的に少なくできるプラスチック用充填
剤の製造方法を提供することを目的とする。
In the conventional method for producing a filler, when a solution of the coupling agent is dropped or sprayed on the raw material of the filler, water or methanol which is a solvent for the coupling agent is preheated. The raw material is touched and evaporated or volatilized instantaneously, and at this time, the coupling agent is scattered from the surface of the raw material of the filler. Therefore, in order to uniformly coat the entire filler material with the coupling agent, it is necessary to add 2 to 2.5 times the theoretically required value of the coupling agent. In view of such problems, it is an object of the present invention to provide a method for producing a filler for plastics, which can reduce the amount of the coupling agent added as much as possible.

【0004】[0004]

【課題を解決するための手段】本発明に係るプラスチッ
ク用充填剤の製造方法は水またはアルコール液に溶かし
たカップリング剤と非加熱の充填剤原料を攪拌した後に
高周波加熱することを特徴とする。
The method for producing a filler for plastics according to the present invention is characterized in that a coupling agent dissolved in water or an alcohol liquid and an unheated filler material are stirred and then heated at high frequency. .

【0005】[0005]

【発明の作用・効果】本発明によれば、非加熱の充填剤
原料とカップリング剤とを攪拌するので、添加したカッ
プリング剤が充填剤原料に触れたときカップリング剤の
溶液が蒸発したり揮発しない。このため、攪拌によりカ
ップリング剤が充填剤原料に均一に付着する。もっと
も、充填剤原料を加熱していないので、攪拌しただけの
状態ではカップリング剤の充填剤原料粒子に対する付着
力は不十分であるが、本発明によれば、攪拌した後に高
周波加熱するので、充填剤原料の粒子表面においてカッ
プリング剤の溶媒である水またはアルコール液の分子が
振動発熱して官能基が形成される局所的現象が生じ、こ
れによりカップリング剤が充填剤原料の粒子表面に強固
に付着する。このように、本発明によれば非加熱の充填
剤原料とカップリング剤を攪拌することによりカップリ
ング剤を充填剤原料に均一にコーティングするので、カ
ップリング剤の添加量が可及的に少なくなる。また、高
周波加熱を利用してカップリング剤を充填剤原料に強固
に付着させるので、充填剤の加熱に要する電力消費量も
節約できる。
According to the present invention, since the unheated filler raw material and the coupling agent are stirred, the coupling agent solution evaporates when the added coupling agent touches the filler raw material. It does not volatilize. Therefore, the stirring causes the coupling agent to uniformly adhere to the filler material. However, since the filler raw material is not heated, the adhesive force to the filler raw material particles of the coupling agent is insufficient in a state simply stirred, but according to the present invention, since the high frequency heating after stirring, On the particle surface of the filler raw material, a local phenomenon that a molecule of water or an alcohol liquid which is a solvent of the coupling agent vibrates and generates heat to form a functional group, which causes the coupling agent on the particle surface of the filler raw material. Stick firmly. As described above, according to the present invention, the coupling agent is uniformly coated on the filler raw material by stirring the non-heated filler raw material and the coupling agent, so that the addition amount of the coupling agent is minimized. Become. Further, since the coupling agent is firmly adhered to the filler raw material by utilizing high frequency heating, the power consumption required for heating the filler can be saved.

【0006】[0006]

【実施例】以下に本発明を図面に基づき説明するに、図
1には本発明の一実施例に係るプラスチック用充填剤の
製造方法が示されている。当該製造方法はアルミナ、マ
イカ、シリカ、石英粉、タルク等の充填剤原料を加熱し
ない常温状態でミキサー10に投入するとともに、シラ
ンを水またはメタノールに溶かして生成したカップリン
グ剤をポンプ11からミキサー10内の充填剤原料に滴
下し、ミキサー10を駆動して充填剤原料とカップリン
グ剤を攪拌する攪拌工程と、攪拌した充填剤原料をミキ
サー10からベルトコンベア12上に排出して加熱ステ
ーション13へ搬送して高周波加熱する加熱工程と、高
周波加熱した充填剤原料を冷却する工程及び冷却した充
填剤原料を解砕する工程から成る。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 shows a method for producing a plastic filler according to an embodiment of the present invention. According to the manufacturing method, filler materials such as alumina, mica, silica, quartz powder, and talc are charged into the mixer 10 at room temperature without heating, and the coupling agent produced by dissolving silane in water or methanol is mixed from the pump 11 by the pump 11. A stirring step of dropping the filler raw material inside 10 and driving the mixer 10 to stir the filler raw material and the coupling agent, and discharging the stirred filler raw material from the mixer 10 onto the belt conveyor 12 and heating station 13. A heating step of carrying and high-frequency heating the same, a step of cooling the high-frequency-heated filler raw material, and a step of crushing the cooled high-temperature filler raw material.

【0007】加熱ステーション13には高周波発信器1
3aに接続した導波管13bがベルトコンベア12の上
方に配置されており、該導波管13bから充填剤原料に
マイクロ波を照射して約80℃に加熱する。一例として
2450メガHZのマイクロ波を4.5KW/m2の照度
で照射する。本実施例に係る製造方法は以上の工程から
成り、攪拌工程において充填剤原料を加熱せず常温でカ
ップリング剤と攪拌するので、カップリング剤が充填剤
原料に滴下したときカップリング剤の溶液が蒸発したり
揮発しない。このため、攪拌によりカップリング剤が充
填剤原料に均一に付着する。さらに、攪拌工程に続く加
熱工程において充填剤原料にマイクロ波を照射して高周
波加熱するので、充填剤原料の粒子表面においてカップ
リング剤の溶媒である水またはアルコール液の分子が振
動発熱して官能基が形成される局所的現象が生じ、これ
によりカップリング剤が充填剤原料の粒子表面に強固に
付着する。
The heating station 13 has a high frequency oscillator 1
A waveguide 13b connected to 3a is disposed above the belt conveyor 12, and the filler raw material is irradiated with microwaves from the waveguide 13b and heated to about 80 ° C. As an example, a microwave of 2450 MHz is irradiated with an illuminance of 4.5 KW / m 2 . The manufacturing method according to the present example comprises the above steps, and the filler material is stirred at room temperature without heating the filler material in the stirring step, so that the solution of the coupling agent when the coupling agent is dropped into the filler material. Does not evaporate or volatilize. Therefore, the stirring causes the coupling agent to uniformly adhere to the filler material. Further, in the heating step subsequent to the stirring step, the filler raw material is irradiated with microwaves for high-frequency heating, so that the molecules of the solvent or water of the coupling agent vibrate and generate heat on the surface of the particles of the filler raw material. A local phenomenon of forming a group occurs, which causes the coupling agent to firmly adhere to the particle surface of the filler raw material.

【0008】このように、本実施例によれば非加熱の充
填剤原料とカップリング剤を攪拌するので、カップリン
グ剤が充填剤原料に均一にコーティングされる。したが
って、カップリング剤の添加量を可及的に少なくでき
る。また、加熱した充填剤原料をミキサーで攪拌する場
合、充填剤原料のアルミナ水和物等が加水分解してカッ
プリング剤と反応し、エチルアルコールが生成されるの
で防爆対策に万全を期す必要があるが、本実施例では常
温で充填剤原料をミキサーに投入するので、爆発の危険
性が低い。さらに、ベルトコンベアで連続的に搬送され
る充填剤原料にマイクロ波を照射して加熱するので、加
熱効率が高く加熱に要する電力消費量を節約できる。
As described above, according to this embodiment, since the unheated filler material and the coupling agent are stirred, the coupling material is uniformly coated on the filler material. Therefore, the addition amount of the coupling agent can be reduced as much as possible. Further, when the heated filler raw material is stirred with a mixer, alumina hydrate or the like of the filler raw material is hydrolyzed and reacts with the coupling agent to produce ethyl alcohol. However, in this embodiment, since the filler raw material is charged into the mixer at room temperature, the risk of explosion is low. Further, since the filler raw material continuously conveyed by the belt conveyor is irradiated with microwaves to be heated, the heating efficiency is high and the power consumption required for heating can be saved.

【図面の簡単な説明】[Brief description of drawings]

【図1】 本発明の一実施例に係るプラスチック用充填
剤の製造方法を示す説明図である。
FIG. 1 is an explanatory view showing a method for manufacturing a plastic filler according to an embodiment of the present invention.

【図2】 従来のプラスチック用充填剤の製造方法を示
す説明図である。
FIG. 2 is an explanatory view showing a conventional method for manufacturing a plastic filler.

【符号の説明】[Explanation of symbols]

10…ミキサー、11…ポンプ、12…ベルトコンベ
ア、13…加熱ステーション、13a…高周波発信器、
13b…導波管。
10 ... Mixer, 11 ... Pump, 12 ... Belt conveyor, 13 ... Heating station, 13a ... High frequency oscillator,
13b ... Waveguide.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 水またはアルコール液に溶かしたカップ
リング剤と非加熱の充填剤原料を攪拌した後に高周波加
熱することを特徴とするプラスチック用充填剤の製造方
法。
1. A method for producing a filler for plastics, which comprises heating a coupling agent dissolved in water or an alcohol solution and a non-heated filler material and then heating the mixture with high frequency.
JP22104294A 1994-08-22 1994-08-22 Production of filler for plastic Pending JPH0859882A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22104294A JPH0859882A (en) 1994-08-22 1994-08-22 Production of filler for plastic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22104294A JPH0859882A (en) 1994-08-22 1994-08-22 Production of filler for plastic

Publications (1)

Publication Number Publication Date
JPH0859882A true JPH0859882A (en) 1996-03-05

Family

ID=16760585

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22104294A Pending JPH0859882A (en) 1994-08-22 1994-08-22 Production of filler for plastic

Country Status (1)

Country Link
JP (1) JPH0859882A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011518919A (en) * 2008-04-25 2011-06-30 スリーエム イノベイティブ プロパティズ カンパニー Process for surface modification of particles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011518919A (en) * 2008-04-25 2011-06-30 スリーエム イノベイティブ プロパティズ カンパニー Process for surface modification of particles
JP2015221907A (en) * 2008-04-25 2015-12-10 スリーエム イノベイティブ プロパティズ カンパニー Process for surface modification of particles

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