JPS6135215B2 - - Google Patents
Info
- Publication number
- JPS6135215B2 JPS6135215B2 JP56094346A JP9434681A JPS6135215B2 JP S6135215 B2 JPS6135215 B2 JP S6135215B2 JP 56094346 A JP56094346 A JP 56094346A JP 9434681 A JP9434681 A JP 9434681A JP S6135215 B2 JPS6135215 B2 JP S6135215B2
- Authority
- JP
- Japan
- Prior art keywords
- plasma
- plasma generator
- molded product
- synthetic resin
- resin molded
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/14—Surface shaping of articles, e.g. embossing; Apparatus therefor by plasma treatment
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Description
【発明の詳細な説明】
本発明はプラズマ発生器による合成樹脂成形品
の処理方法、特にプラズマ発生器のプラズマ吹出
し口と合成樹脂成形品との間の距離に対するプラ
ズマ発生器の出力設定に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for processing a synthetic resin molded product using a plasma generator, and in particular to setting the output of the plasma generator with respect to the distance between the plasma outlet of the plasma generator and the synthetic resin molded product. be.
従来、例えばPP，PE，PTFE等親水性や接着
力が極めて悪い合成樹脂成形品を、塗料の塗布前
にプラズマにより処理し、ドライエツチングする
ことによりその密着効果が出る事が公知となつて
いる。 Conventionally, it has been known that synthetic resin molded products with extremely poor hydrophilicity and adhesive strength, such as PP, PE, and PTFE, can be treated with plasma and dry-etched before coating to improve their adhesion. .
本発明者は実験によつて、プラズマ吹出し口と
合成樹脂成形品との間の距離に対するプラズマ発
生器の出力を所定の大きさに設定することにより
その接着力を一段と高め得ることを見出した。 The inventor of the present invention has found through experiments that the adhesive force can be further increased by setting the output of the plasma generator to a predetermined value relative to the distance between the plasma outlet and the synthetic resin molded article.
以下、本発明の実施例につき第１図を用いて説
明すると、同図において、１はプラズマ発生器で
あり、これはマイクロ波発振器２と、この発振器
２のマイクロ波出力によりマイクロ波放電を行つ
てプラズマを発生するプラズマ発生部３と、該プ
ラズマ発生部３に所定量空気又は酸素を供給する
ガス流量計等から成る圧力装置４とを具備し、上
記プラズマ発生部３のプラズマ吹出し口５は、ド
ーム状のベルヂヤー７に供給され、該ベルヂヤー
７内のガスはメカニカルブースター８、ロータリ
ーポンプ９等で構成される排気系で排気される。
上記ベルヂヤー７内には合成樹脂成形品１０が、
その処理面１１が吹出し口５を向くように載置さ
れる。 Hereinafter, an embodiment of the present invention will be explained with reference to FIG. 1. In the figure, 1 is a plasma generator, which includes a microwave oscillator 2 and a microwave output from the oscillator 2 to generate a microwave discharge. The plasma generator 3 is equipped with a pressure device 4 consisting of a gas flow meter or the like that supplies a predetermined amount of air or oxygen to the plasma generator 3, and a plasma outlet 5 of the plasma generator 3. , a dome-shaped bell gear 7, and the gas inside the bell gear 7 is exhausted by an exhaust system comprising a mechanical booster 8, a rotary pump 9, and the like.
Inside the bell gear 7, there is a synthetic resin molded product 10.
It is placed so that the treated surface 11 faces the outlet 5.
このような装置を用いて、つぎの実験を行つ
た。すなわちPPのホモポリマー，コポリマーよ
り成る合成樹脂成形品１０を、0.01〜10Torrに減
圧されたベルヂヤー７にセツトし、ベルヂヤー外
で周波数2450MHzの発振器２のマイクロ波によ
り、空気又は酸素を活性化してプラズマを発生さ
せて、ベルヂヤー７内に送り込み、このとき、ベ
ルヂヤー内を圧力装置４によつてガスが封入され
〓〓〓〓〓
ても一定圧力Ｐ（0.5Torr）に保持した。なお、
プラズマ発生器３は、東京芝浦電気製作所製、型
式TMZ―0015、出力904KWのものを用い。ま
た、上記ホモポリマーの合成樹脂成形品１０は、
三菱油化株式会社製ポリプロピレン「Ｊ―209」
から100×100×２mmに成形したシートを使用し
た。マイクロ波の照射時間は約10秒とし、このよ
うな処理を、プラズマ吹出口５からの合成樹脂成
形品１０の各距離Ｌ（５cm，25cm，50cm，75cm，
100cm）に対し、プラズマ発生器１側の出力Ｅ・
Ｆ／P2｛Ｅはマイクロ波発振器１の出力
（Watt），Ｆはガス流量（cc／min），Ｐは処理時
のベルヂヤー内の圧力（Torr）｝を2000から
100000まで変化させて、接着強度を測定した。な
お、この場合、Ｆは一定とした。 The following experiment was conducted using such an apparatus. That is, a synthetic resin molded product 10 made of PP homopolymer or copolymer is set in a belt gear 7 whose pressure is reduced to 0.01 to 10 Torr, and air or oxygen is activated by microwaves from an oscillator 2 with a frequency of 2450 MHz outside the belt gear to generate plasma. is generated and sent into the bell gear 7, and at this time, the pressure device 4 fills the inside of the bell gear with gas.
The pressure was maintained at a constant pressure P (0.5 Torr). In addition,
The plasma generator 3 is manufactured by Tokyo Shibaura Electric Works, model TMZ-0015, and has an output of 904 KW. Further, the homopolymer synthetic resin molded product 10 is as follows:
Polypropylene "J-209" manufactured by Mitsubishi Yuka Co., Ltd.
A sheet formed from 100 x 100 x 2 mm was used. The microwave irradiation time was about 10 seconds, and this treatment was performed at each distance L (5 cm, 25 cm, 50 cm, 75 cm,
100cm), the output E on the plasma generator 1 side
F/P 2 {E is the output of microwave oscillator 1 (Watt), F is the gas flow rate (cc/min), P is the pressure inside the bell gear during processing (Torr)} from 2000.
The adhesion strength was measured by varying the strength up to 100,000. In this case, F was kept constant.
そして、接着強度については、ナイフを用いて
1.5m／ｍ幅のピツチで塗膜にｆ＝100本縦横に傷
を付け、各縦横の線分で囲まれる最小面積部分が
全体の何割程度剥離したかを確認した。すなわ
ち、上記傷の本数ｆを100とし、最小面積部分の
剥離した割合をｍ（％）とし、ｍ／ｆを求めた。 And for adhesive strength, use a knife to
The paint film was scratched vertically and horizontally with f = 100 lines with a pitch of 1.5 m/m width, and the percentage of the total peeled off was determined by the minimum area surrounded by each vertical and horizontal line segment. That is, m/f was determined by setting the number f of the scratches to 100, and setting the peeled rate of the minimum area portion to m (%).
その結果ホモポリマーに対し、使用ガスとして
O2を用いた場合、上記実験結果は第２図ａに示
す表図、第２図ｂに示す両対数グラフのイの特性
図が得られ、使用ガスとして空気を用いた場合は
第３図ａに示す表図、第３図ｂに示す両対数グラ
フのハの特性図が得られた。 As a result, for homopolymer, as the gas used
When O 2 is used, the above experimental results are shown in the table shown in Figure 2 a, and the log-log graph shown in Figure 2 b, and when air is used as the gas, the characteristic diagram shown in Figure 3 is obtained. A table diagram shown in a and a characteristic diagram of the double-logarithmic graph shown in FIG. 3b were obtained.
この場合、ｍ／ｆ＝100／100は、ｍが100
（％）で最小面積部分は全部剥離しないで残るこ
とを意味し、表図、特性図上〇印を付している。
95／100はｍが95（％）で、95（％）残り５
（％）が剥離したことを意味し、△印を付してい
る。ｍが95（％）程度を超えるとき、実験上許容
し得るもので、それ未満のときは許容できず×印
を付している。 In this case, m/f=100/100 means that m is 100
(%) means that the minimum area portion remains without being peeled off, and is marked with a circle in the table and characteristic diagram.
95/100 is m is 95 (%), 95 (%) remaining 5
(%) means peeling, and is marked with △. When m exceeds about 95 (%), it is experimentally acceptable, and when it is less than that, it is unacceptable and is marked with an x.
同結果から明らかなようにO2ガス使用のとき
は、出力（Ｅ・Ｆ／P2）は、特性イよりも大きく
ならなければならず、このことは、Ｌを５cmから
100cm変化させるとき、プラズマ発生器１の出力
の最小レベルが、Ｌが５cmのときＥ・Ｆ／P2が
12000で、かつ100cmのとき18000まで直線的に変
化するように設定しなければならないことを意味
する。 As is clear from the same results, when using O 2 gas, the output (E・F/P 2 ) must be larger than characteristic A, which means that L can be changed from 5 cm to
When changing by 100 cm, the minimum level of output of plasma generator 1 is E・F/P 2 when L is 5 cm.
This means that it must be set so that it is 12000 and changes linearly up to 18000 at 100cm.
そして空気使用のときは特性ハよりも大きくな
らなければならず、Ｌが５cmのときＥ・Ｆ／P2が
5000で、Ｌが100cmのときＥ・Ｆ／P2が106まで直
線的に変化するように設定しなければならない。 When using air, it must be larger than the characteristic C, and when L is 5 cm, E・F/P 2 is
5000, it must be set so that when L is 100 cm, E・F/P 2 changes linearly up to 10 6 .
なお、本発明ではＬ＝５cm以下については考慮
に入れていない。これは本願における成形品はあ
る程度の大きさを有するもの例えば自動車用スカ
ートやバンパーの様なものを仮定して実験を行つ
たもので、ベルヂヤーは円筒形状をしており、
吹出口から５cm以内に物理的に近づけられないこ
と、作業能率の観点から１つのベルヂヤー内で
同時に複数個の成形品を処理し、これらの成形品
に均一にまんべんなくプラズマを照射するために
ベルヂヤー内で成形品を回転させるように設計
し、この際５cm以内に近づけると、成形品の表面
がベルヂヤー内壁と接触する危険性があり、成形
品の表面を傷つけることを防止する意味で５cm以
内を考慮に入れなかつたものである。 Note that the present invention does not take into account L=5 cm or less. This experiment was conducted assuming that the molded product in this application has a certain size, such as an automobile skirt or bumper, and the bell gear has a cylindrical shape.
In order to process multiple molded products at the same time in one belt gear, and to irradiate these molded products with plasma uniformly and evenly, it is difficult to physically approach within 5 cm from the air outlet. The molded product is designed to be rotated, and in this case, if it is brought closer than 5 cm, there is a risk that the surface of the molded product will come into contact with the inner wall of the bell gear, so in order to prevent damage to the surface of the molded product, a limit of 5 cm should be considered. It was something that I couldn't put into it.
また、プラズマが均一に存在することが考えら
れるが、ガスはプラズマ処理中、継続して少量で
あるが供給され続けており、かつプラズマ吹出口
の反対側には真空ポンプに連結された吸入口があ
り、これまたプラズマ処理中ずつと継続して作動
している。 In addition, although it is possible that the plasma exists uniformly, gas is continuously supplied in a small amount during plasma processing, and on the opposite side of the plasma outlet there is an inlet connected to a vacuum pump. It also operates continuously during plasma processing.
従つてプラズマ化されたガスは吹出口から吸込
口に向けて流れていると解すべきものである。 Therefore, it should be understood that the plasma-formed gas flows from the blow-off port toward the suction port.
また、成形品が大きいものであるときには、成
形品の中央部と隅のほうとで吹出口からの距離が
異なつてくるが、この場合にはベルヂヤー内で成
形品を回転させてまんべんなくプラズマガス流が
照射されるようにしたり、ベルヂヤー内に複数個
の吹出口を設ける等の別途の手段で解消できる。 In addition, when the molded product is large, the distance from the outlet will be different between the center and the corners of the molded product. This problem can be solved by additional means such as irradiating the air with water or providing multiple air outlets in the bell gear.
以上説明したように本発明によれば、PPのホ
モポリマーをプラズマ処理するとき、O2よりな
るプラズマ生成ガスで処理し得るＥ・Ｆ／P2の最
小レベルを、Ｌ＝５cmのとき12000、Ｌ＝100cmの
とき18000を結ぶ線以上で処理し、空気よりなる
プラズマ生成ガスで処理し得るＥ・Ｆ／P2の最小
レベルをＬ＝５cmのとき5000、Ｌ＝100cmのとき
106を結ぶ線以上となるよう設定して処理するよ
うにしたので、このようにして処理された合成樹
脂成形品に対する塗料，接着剤の接着力を増加す
ることができ、長期間の使用に十分耐えることが
でき、また、処理が10秒程度でよく、従来のよう
に合成樹脂成形品に塗料を塗布する前に、プライ
〓〓〓〓〓
マー処理を施す場合、これを乾燥する必要があ
り、このため作業時間がきわめて長くなり、量産
化が図れなかつたが、本発明によればこのような
問題を解消できる。従つて、本発明では塗料が最
も密着しにくいPPのホモポリマー、についての
塗料密着可能範囲を判明させたので、これらのポ
リマーに例えばEPDM等のゴム成分を含ませたも
のは、上記範囲内で充分処理できる。 As explained above, according to the present invention, when plasma-treating a PP homopolymer, the minimum level of E.F/P 2 that can be treated with a plasma generating gas consisting of O 2 is set to 12000 when L = 5 cm, When L = 100 cm, the minimum level of E・F/P 2 that can be treated with a plasma generating gas made of air is 5000 when L = 5 cm, and 5000 when L = 100 cm.
10 to 6 or more, it is possible to increase the adhesion force of paints and adhesives to synthetic resin molded products treated in this way, making it suitable for long-term use. It has sufficient resistance, and only takes about 10 seconds to process, making it easy to apply paint to synthetic resin molded products as before.
When performing the mer treatment, it is necessary to dry it, which results in an extremely long working time, making mass production impossible.However, according to the present invention, such problems can be solved. Therefore, in the present invention, we have clarified the range in which paint can adhere to PP homopolymers, to which paints have the least adhesion, and these polymers containing a rubber component such as EPDM can be applied within the above range. It can be processed sufficiently.
第１図は本発明によるプラズマ発生器による合
成樹脂成形品の処理方法の一実施例を示す簡略構
成図、第２図ａ，ｂは使用ガスO2のときの実験
結果を示す表図及び特性図、第３図ａ，ｂは空気
使用のときの実験結果を示す表図及び特性図であ
る。
１…プラズマ発生器、２…マイクロ波発振器、
３…プラズマ発生部、５…プラズマ吹出し口、７
…ベルヂヤー、１０…合成樹脂成形品。
〓〓〓〓〓
Fig. 1 is a simplified configuration diagram showing an example of a method for processing synthetic resin molded products using a plasma generator according to the present invention, and Fig. 2 a and b are a table showing experimental results and characteristics when the gas used is O 2 . Figures 3a and 3b are tables and characteristic diagrams showing experimental results when air is used. 1... Plasma generator, 2... Microwave oscillator,
3... Plasma generation section, 5... Plasma outlet, 7
... Belgeya, 10... Synthetic resin molded product. 〓〓〓〓〓
Claims (1)
マーを処理する方法において、プラズマ吹出口と
ポリプロピレン樹脂のホモポリマーを主体とする
合成樹脂成形品との最小距離Ｌをほぼ５cmとし、
O2よりなるプラズマ生成ガスで処理する場合、
プラズマ発生器の出力Ｅ・Ｆ／P2の最小レベルを
Ｌ＝５cmのとき12000、Ｌ＝100cmのとき18000を
結ぶ線以上となるよう設定し、空気よりなるプラ
ズマ生成ガス処理する場合、プラズマ発生器の出
力Ｅ・Ｆ／P2の最小レベルをＬ＝５cmのとき
5000、Ｌ＝100cmのとき106を結ぶ線上となるよう
設定したことを特徴とするプラズマ発生器による
合成樹脂成形品の処理方法。1. In a method of treating a polymer using a microwave discharge plasma generator, the minimum distance L between the plasma outlet and a synthetic resin molded product mainly composed of a homopolymer of polypropylene resin is approximately 5 cm,
When processing with a plasma generating gas consisting of O 2 ,
The minimum level of the plasma generator's output E・F/ P2 is set to be equal to or higher than the line connecting 12000 when L = 5 cm and 18000 when L = 100 cm, and when processing plasma generation gas made of air, plasma generation When the minimum level of the output E・F/P 2 of the device is L=5cm
5000, a method for processing a synthetic resin molded product using a plasma generator, characterized in that the plasma generator is set to be on a line connecting 10 6 when L = 100 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9434681A JPS57209935A (en) | 1981-06-18 | 1981-06-18 | Treatment of plastic molding with plasma generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9434681A JPS57209935A (en) | 1981-06-18 | 1981-06-18 | Treatment of plastic molding with plasma generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57209935A JPS57209935A (en) | 1982-12-23 |
| JPS6135215B2 true JPS6135215B2 (en) | 1986-08-12 |
Family
ID=14107716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9434681A Granted JPS57209935A (en) | 1981-06-18 | 1981-06-18 | Treatment of plastic molding with plasma generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57209935A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63503280A (en) * | 1986-03-29 | 1988-12-02 | エンゲルス，シユテフアン | carabiner haken especially for climbers |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59125698A (en) * | 1983-01-06 | 1984-07-20 | 松下電工株式会社 | Method of producing multilayer printed circuit board |
| JPS61118136A (en) * | 1984-11-12 | 1986-06-05 | Nippon Paint Co Ltd | Surface treatment |
| JPS6289737A (en) * | 1985-06-27 | 1987-04-24 | Nippon Medical Supply Corp | Production of plastic tubes |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5682826A (en) * | 1979-12-11 | 1981-07-06 | Mitsubishi Petrochem Co Ltd | Surface treatment of propylene resin composite material molded article |
-
1981
- 1981-06-18 JP JP9434681A patent/JPS57209935A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63503280A (en) * | 1986-03-29 | 1988-12-02 | エンゲルス，シユテフアン | carabiner haken especially for climbers |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57209935A (en) | 1982-12-23 |
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