JPS62179536A - Production of liquid-impermeable plastic tank - Google Patents
Production of liquid-impermeable plastic tankInfo
- Publication number
- JPS62179536A JPS62179536A JP2022386A JP2022386A JPS62179536A JP S62179536 A JPS62179536 A JP S62179536A JP 2022386 A JP2022386 A JP 2022386A JP 2022386 A JP2022386 A JP 2022386A JP S62179536 A JPS62179536 A JP S62179536A
- Authority
- JP
- Japan
- Prior art keywords
- treated
- tank
- gasoline
- silane coupling
- coupling agent
- 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.)
- Granted
Links
- 229920003023 plastic Polymers 0.000 title claims abstract description 14
- 239000004033 plastic Substances 0.000 title claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 8
- 238000009832 plasma treatment Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 abstract description 2
- 125000000524 functional group Chemical group 0.000 abstract description 2
- 125000001183 hydrocarbyl group Chemical group 0.000 abstract description 2
- 229910052760 oxygen Inorganic materials 0.000 abstract description 2
- 239000001301 oxygen Substances 0.000 abstract description 2
- 239000004698 Polyethylene Substances 0.000 description 11
- -1 polyethylene Polymers 0.000 description 11
- 229920000573 polyethylene Polymers 0.000 description 11
- 239000010410 layer Substances 0.000 description 5
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 4
- 229910052731 fluorine Inorganic materials 0.000 description 4
- 239000011737 fluorine Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical class [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000007822 coupling agent Substances 0.000 description 2
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 125000003282 alkyl amino group Chemical group 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はガソリン等の液体不透過性を有するプラスチッ
クタンクの製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for manufacturing a plastic tank that is impermeable to liquids such as gasoline.
（従来の技術）
従来、車輌用のガソリンタンクを経浩性及び耐′ｆ！Ｊ
撃性に優れたポリエチレンから形成することが提案され
ている。(Prior art) Conventionally, gasoline tanks for vehicles have been made with high bulkiness and durability. J
It has been proposed that the material be made of polyethylene, which has excellent impact resistance.
しかしながら、＋ｇ層ポリエブレンからなるガソリンタ
ンクではガソリンの主成分とポリエチレン壁部の化学的
な親和性が良いため、ガソリンがタンク壁部を浸透して
タンク表面に滲出してしまう。However, in a gasoline tank made of +g-layer polyethylene, the main component of gasoline has good chemical affinity with the polyethylene wall, so gasoline permeates through the tank wall and oozes out onto the tank surface.
このため、特開昭５８−２２０７３８号公報に示すよう
に、ナイロン等のバリア材層の両面に接着剤層を介して
高書度ポリエチレン層を積層した三種五層からなるプラ
スチックタンクが提案されているが、ナイロンはポリエ
チレンに比較して極めて高価であるためタンク全体の大
幅４１コストアツプになってしまう。また、この公知の
タンクは三種五層の積層構造のため、製造工程が？ａ雑
化すると言った問題があった。For this reason, as shown in Japanese Patent Application Laid-Open No. 58-220738, a plastic tank consisting of five layers of three types has been proposed, in which high-strength polyethylene layers are laminated on both sides of a layer of barrier material such as nylon via an adhesive layer. However, since nylon is extremely expensive compared to polyethylene, the cost of the entire tank increases significantly. Also, since this known tank has a laminated structure of three types and five layers, what is the manufacturing process? There was a problem that it became complicated.
そこで単層ポリエチレンからなる塁材をフッ素または亜
硫酸ガスで化学的に処理し、ガソリンと親和性の乏しい
塁をポリエチレン内面に生成し、ガソリン透過を防止す
る方法が提案されている。Therefore, a method has been proposed in which a base material made of single-layer polyethylene is chemically treated with fluorine or sulfur dioxide gas to generate a base material with poor affinity for gasoline on the inner surface of the polyethylene to prevent gasoline from permeating.
（発明が解決しようとする問題点）
しかしながら、従来の化学的処理方法では毒性を有する
フッ素ガスまたは亜１ｔ？ＴＩ’ｌｆガスを用いている
ため、作業ｙＡ境を悪化させ作業能率が悪いものとなっ
ていた。また、このようなガスで処理したガソリンタン
クは必ずしもガソリンの不透過性で満足できるものでは
なかった。(Problems to be Solved by the Invention) However, in the conventional chemical treatment method, toxic fluorine gas or submerged gas is used. Since TI'lf gas is used, the work environment is deteriorated and the work efficiency is poor. Furthermore, gasoline tanks treated with such gases have not always been satisfactory in their impermeability to gasoline.
本発明は上記のような問題点に鑑みてなされたもので、
その目的はガソリンの不透過性に優れ、しかも有毒ガス
等を使用することがなく作業環境及び作業能率の良いプ
ラスチックタンクの製造方法を提供するにある。The present invention was made in view of the above-mentioned problems.
The purpose is to provide a method for manufacturing a plastic tank that has excellent impermeability to gasoline, does not use toxic gases, etc., and provides a good working environment and working efficiency.
（問題点を解決するための手段）
上記の目的を達成するため、本発明に係る液体不透過性
を有するプラスチックタンクのＩｎ方法によると、先ず
プラスチックタンクの壁面をプラズマ処理してこの壁面
を活性化させる。次に、このプラズマ処理した壁面にシ
ランカップリング剤を塗布して強固に付着させ、その後
にこの壁面を設定温度で加熱処理するのである。(Means for Solving the Problems) In order to achieve the above object, according to the In method for a liquid-impermeable plastic tank according to the present invention, the wall surface of the plastic tank is first treated with plasma to activate the wall surface. to become Next, a silane coupling agent is applied to this plasma-treated wall surface to firmly adhere to it, and then this wall surface is heat-treated at a set temperature.
（実施例）
以下に本発明の好適な実施例について、経済性及び耐！
１ｉ４Ｊ性に優れた高密度ポリエチレン製タンクを例に
とって説明する。(Example) Preferred embodiments of the present invention will be described below regarding economic efficiency and durability.
This will be explained by taking a high-density polyethylene tank with excellent 1i4J properties as an example.
ポリエチレンは炭素と水素が強固に結合された分子構造
となっていて、このままでは他の物質が結合しにくい状
態となっている。そこで先ず、ポリエチレン類のタンク
の内面を酸素プラズマで処理して、以下のようにポリエ
チレンの面を活性化さＵ′る。Polyethylene has a molecular structure in which carbon and hydrogen are strongly bonded, making it difficult for other substances to bond with it. First, the inner surface of the polyethylene tank is treated with oxygen plasma to activate the polyethylene surface as described below.
以下には、上記のプラズマ処理の結果主に生成される について説明する。The following are mainly generated as a result of the above plasma treatment. I will explain about it.
次に、上記のようにプラズマ処理されたタンクの内面に
シランカップリング剤ＹＲ８ｉ Ｘ３を塗布する。ここ
で、Ｙは有機官能基で例えば−Ｎ ト１２ 、
−Ｎ）ｌ ２ Ｃ２Ｈ４ＮＨ，−ＮＨ２０゜Ｎ Ｆ
＋、 −ＣＨ２＝ＣＨ，−ＣＨ２＝ＣＣＨ３Ｃ０等
がある。Ｒは炭化水素基で、例えば−Ｃ１Ｈ３ｎ−１等
がある。Ｓｌは珪素原子である。Ｘは珪素原子に結合す
る加水分解基で、例えば−Ｃβ、−ＯＲ，−〇〇〇Ｒ等
がある。上記の塗布は、例えば１０１のアルコール中に
０．１〜０．５のシランカップリング剤を含有する溶液
中にタンクを浸漬することによって極めて簡単に行うこ
とができる。Next, a silane coupling agent YR8i X3 is applied to the inner surface of the tank that has been plasma treated as described above. Here, Y is an organic functional group, for example -N t12,
-N)l 2 C2H4NH, -NH20゜NF
+, -CH2=CH, -CH2=CCH3C0, etc. R is a hydrocarbon group, such as -C1H3n-1. Sl is a silicon atom. X is a hydrolyzable group bonded to a silicon atom, such as -Cβ, -OR, -〇〇〇R, etc. The above application can be carried out very easily, for example by immersing the tank in a solution containing 0.1 to 0.5 parts silane coupling agent in 101 parts alcohol.
上記の塗布に際してシランカップリング剤ＹＲ８ｉＸ３
が加水分解すると、以下のようになる。When applying the above, use the silane coupling agent YR8iX3.
When it is hydrolyzed, it becomes as follows.
ＹＲ８ｉｘ３＋３Ｈ２０
→ＹＲ８ｉ （ＯＨ）３ ＋３ＨＸ
そして、このカップリング剤がポリエチレン製タンクの
内面と反応すると以下のようになる。YR8ix3+3H20 →YR8i (OH)3 +3HX When this coupling agent reacts with the inner surface of the polyethylene tank, the following reaction occurs.
Ｒ １Ｉ Ｙ ＩＩ Ｙ Ｈ 一一−−÷ −Ｃ−Ｃ−Ｃ−Ｃ− １１ＨＨ１１ すると、以下のような反応が生じる。R 1I Y Y H 11--÷-C-C-C-C- 11HH11 Then, the following reaction occurs.
ｎ
＋ −ＨＸ
ＲＲ
Ｙ Ｙ
この中のＹの部分にガソリンと親和性の低い基をもたせ
ることによりガソリン透過性をなくすのである。n + -HX RR Y Y Gasoline permeability is eliminated by providing a group with low affinity for gasoline in the Y portion.
上記加熱処理は、好ましくは６０℃〜１４０”Ｃの温度
で２〜２０分間加熱雰囲気中に入れることである。The heat treatment is preferably carried out in a heating atmosphere at a temperature of 60° C. to 140″C for 2 to 20 minutes.
本発明に用いられるシランカップリング剤としては多種
多用のものがあるが、特にナイロンと同じアミド結合ヤ
イミド結合を持つカップリング剤がガソリン透過防止効
果が大きく好ましい。−例どしてはアミノシランがあり
、このアミノシランとしては以下のようなものが例示さ
れる。Although there are many types of silane coupling agents used in the present invention, coupling agents having an amide bond and a yimide bond, which are the same as those of nylon, are particularly preferred because of their great gasoline permeation prevention effect. - Examples include aminosilanes, and examples of these aminosilanes include the following:
■ Ｈ２Ｎ ＣＨ３Ｈ６Ｓ ！ （○ Ｃ２ト
１５ ） ３■Ｈ，、ＮＣＨ４ＮＨＣ３Ｈ６Ｓｉ
（ＯＣＨ３） ３■Ｈ２ＮＣ２Ｈ４ＮＨＣ３Ｉ（６５
ｆ（ＯＣＨ３）３■ ＣＨ３ＣＯＯＣ２１−１４Ｎ１−
ＩＣ２Ｈ４ＮＨＣ３Ｉｆ Ｓｉ （ＯＣＩ−１３）
３
■ トＩ ＮＣＩｔ Ｎ１−１ｃ
ＨＮＨＣ３１−ｌ ６ Ｓｉ＜ＯＣトＩ ３
） ３
■ＨＮＣＨＣＨＮ１−ＩＣｌ−１２ＣＨ２Ｃｌ−１２ｓ
＊（ＯＣＨ３）３
上記アミノシランのうち、■で示したもので処理したボ
］・ルとフッ素処理したボトルと未処理のボトルのガソ
リン透過量のデーターを図に示す。■ H2N CH3H6S! (○C2to15) 3■H,,NCH4NHC3H6Si
(OCH3) 3■H2NC2H4NHC3I (65
f(OCH3)3■ CH3COOC21-14N1-
IC2H4NHC3If Si (OCI-13)
3 ■ NCIt N1-1c
HNHC31-l 6 Si<OCtoI 3
) 3 ■HNCHCHN1-ICl-12CH2Cl-12s
*(OCH3)3 Among the above aminosilanes, the data on the amount of gasoline permeated in the bottles treated with those indicated by (■), the fluorine-treated bottles, and the untreated bottles are shown in the figure.
このデーターは内容ａ ５００ ｎｌ！のボトル中に２
００ｒＲＩｌのガソリンを入れて、その減少量から透過
ｍを測定したちので、このデーターから、ガソリンの１
日当たりの透過量は未処理のボトルが４．６８ｘ１０”
ｇ／口、フッ素処理したボトルが９゜３８ｘ１０’ｇ／
日であるのに対し、本発明のプラズマシラン処理したボ
トルでは７．ＯＯＸｌｏ−３ｇ／日と顕署に減少してい
るのが認められた。This data has a content of 500 nl! 2 in a bottle of
00rRIl of gasoline was added, and the permeation m was measured from the amount of decrease. From this data, it was determined that 1 of the gasoline
The permeation amount per day is 4.68 x 10” for untreated bottles.
g/mouth, fluorine treated bottle is 9゜38x10'g/
7 days for the plasma silane treated bottle of the present invention. A significant decrease in OOXlo-3g/day was observed.
（効 果）
以上のように本発明に係るプラスチックタンクの’ＦＪ
Ｔｉ方法では、ガソリンの不透過性改善のために初めて
シランカップリング剤を用いただけでなく、プラスデッ
クタンク壁面をプラズマ処理した後、この壁面にシラン
カップリング剤を塗布し、次いで該壁面を設定温度で加
熱処理しているため、プラズマ処理によってタンク壁面
が活性化されてシランカップリング剤が強固に付着され
るのであるＯそして・シランカップリング剤としてガソ
リンと親和性の低いものを用いることによって、従来例
に比べると著しくガソリン透過防止効果を上げることが
可能となったのである。(Effects) As described above, the 'FJ' of the plastic tank according to the present invention
The Ti method not only used a silane coupling agent for the first time to improve gasoline impermeability, but also applied plasma treatment to the wall surface of the Plus Deck tank, applied a silane coupling agent to this wall surface, and then set the wall surface. Because the heat treatment is carried out at high temperatures, the tank wall surface is activated by the plasma treatment and the silane coupling agent is firmly attached.And by using a silane coupling agent with low affinity for gasoline. This made it possible to significantly improve the gasoline permeation prevention effect compared to conventional examples.
また、本発明では従来のように右毒ガスを用いることが
ないので、作業環境が良く作業能率を上げることもでき
る。Furthermore, since the present invention does not use poisonous gas unlike the conventional method, the work environment is good and work efficiency can be increased.
図は未処理のボ］・ルと従来の方法で処理したボトルと
本発明の方法で処理したボトルのガソリン透過ｍを比較
して示すグラフである。
特許出願人 マ ツ ダ 株式会社代 理
人 弁理上 −色 健 軸間
弁理士 松 本 雅 利（ビ３）The figure is a graph comparing the gasoline permeation m of untreated bottles, bottles treated by the conventional method, and bottles treated by the method of the present invention. Patent applicant Mazda Co., Ltd. Agent
Person On Patent Law - Ken Color Between Axis
Patent Attorney Masatoshi Matsumoto (Bi3)
Claims (1)
にシランカップリング剤を塗布し、次いで該壁面を設定
温度で加熱処理してなることを特徴とする液体不透過性
を有するプラスチックタンクの製造方法。1. A method for manufacturing a plastic tank having liquid impermeability, which comprises subjecting the wall surface of the plastic tank to plasma treatment, applying a silane coupling agent to the wall surface, and then heat-treating the wall surface at a set temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61020223A JPH0660252B2 (en) | 1986-02-03 | 1986-02-03 | Method for manufacturing polyethylene gasoline tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61020223A JPH0660252B2 (en) | 1986-02-03 | 1986-02-03 | Method for manufacturing polyethylene gasoline tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62179536A true JPS62179536A (en) | 1987-08-06 |
| JPH0660252B2 JPH0660252B2 (en) | 1994-08-10 |
Family
ID=12021166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61020223A Expired - Lifetime JPH0660252B2 (en) | 1986-02-03 | 1986-02-03 | Method for manufacturing polyethylene gasoline tank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0660252B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04178437A (en) * | 1990-11-13 | 1992-06-25 | Regurusu:Kk | Molded article of resin and production thereof |
| EP0722823A1 (en) * | 1995-01-19 | 1996-07-24 | INPRO Innovationsgesellschaft für fortgeschrittene Produktionssysteme in der Fahrzeugindustrie mbH | Method for producing thermoplastic objects with plasma-suitable surfaces |
| JPH10500637A (en) * | 1994-12-05 | 1998-01-20 | インテグレイテッド ライナー テクノロジーズ，インコーポレイテッド | Bonding of cured elastomers to plastics and metals |
| US5958509A (en) * | 1996-09-18 | 1999-09-28 | Basf Aktiengesellschaft | Coating of molded plastics articles |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS612738A (en) * | 1984-06-13 | 1986-01-08 | Sumitomo Electric Ind Ltd | Surface treatment of synthetic resin molded article |
-
1986
- 1986-02-03 JP JP61020223A patent/JPH0660252B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS612738A (en) * | 1984-06-13 | 1986-01-08 | Sumitomo Electric Ind Ltd | Surface treatment of synthetic resin molded article |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04178437A (en) * | 1990-11-13 | 1992-06-25 | Regurusu:Kk | Molded article of resin and production thereof |
| JPH10500637A (en) * | 1994-12-05 | 1998-01-20 | インテグレイテッド ライナー テクノロジーズ，インコーポレイテッド | Bonding of cured elastomers to plastics and metals |
| US6234335B1 (en) | 1994-12-05 | 2001-05-22 | Integrated Liner Technologies Inc. | Sealable container and open top cap with directly bonded elastomer septum |
| EP0722823A1 (en) * | 1995-01-19 | 1996-07-24 | INPRO Innovationsgesellschaft für fortgeschrittene Produktionssysteme in der Fahrzeugindustrie mbH | Method for producing thermoplastic objects with plasma-suitable surfaces |
| US5958509A (en) * | 1996-09-18 | 1999-09-28 | Basf Aktiengesellschaft | Coating of molded plastics articles |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0660252B2 (en) | 1994-08-10 |
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