JP2001239630A - Laminated structure - Google Patents
Laminated structureInfo
- Publication number
- JP2001239630A JP2001239630A JP2000053139A JP2000053139A JP2001239630A JP 2001239630 A JP2001239630 A JP 2001239630A JP 2000053139 A JP2000053139 A JP 2000053139A JP 2000053139 A JP2000053139 A JP 2000053139A JP 2001239630 A JP2001239630 A JP 2001239630A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- polyolefin
- fiber
- reinforced plastic
- fiber reinforced
- 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
Landscapes
- Laminated Bodies (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は例えば耐蝕性容器や
耐蝕性パイプ等の材料として有用な積層構造に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminated structure useful as a material for, for example, a corrosion-resistant container or a corrosion-resistant pipe.
【0002】[0002]
【従来の技術】従来から内側を耐蝕性を有するポリプロ
ピレン層とし、機械的強度に乏しいポリプロピレン層を
強化するために外側にガラス繊維強化プラスチック層を
積層した耐蝕性容器が提供されている。しかしポリプロ
ピレン層とガラス繊維強化スチック層とは接着性に乏し
く、層間剥離強度が充分でないと云う問題点がある。2. Description of the Related Art Conventionally, there has been provided a corrosion-resistant container in which a polypropylene layer having corrosion resistance is provided on the inside and a glass fiber reinforced plastic layer is laminated on the outside in order to reinforce the polypropylene layer having poor mechanical strength. However, there is a problem that the polypropylene layer and the glass fiber reinforced stick layer have poor adhesion, and the delamination strength is not sufficient.
【0003】そこで例えばポリプロピレン層表面を火炎
によって加熱軟化させた上でその上に繊維シートを圧着
し、該繊維シート上にガラス繊維強化プラスチック層を
積層する方法が提案されている(特公平5−10225
号)。Therefore, for example, a method has been proposed in which the surface of a polypropylene layer is softened by heating with a flame, and then a fiber sheet is pressed thereon, and a glass fiber reinforced plastic layer is laminated on the fiber sheet (Japanese Patent Publication No. H5-5-). 10225
issue).
【0004】[0004]
【発明が解決しようとする課題】上記従来方法ではポリ
プロピレン層表面を火炎によって加熱軟化させるので、
冷却中にポリプロピレン層の収縮が起こり、ポリプロピ
レン層の成形形状が安定しないと云う問題点がある。ま
た繊維シートを必要とするから、材料費が高くなる。In the above conventional method, the surface of the polypropylene layer is heated and softened by a flame.
There is a problem that the polypropylene layer shrinks during cooling and the molded shape of the polypropylene layer is not stable. Further, since a fiber sheet is required, material costs are increased.
【0005】[0005]
【課題を解決するための手段】本発明は上記従来の課題
を解決するための手段として、ポリオレフィン層(1)に
塩素化ポリオレフィン塗布層(2,3) を介して繊維強化プ
ラスチック層(5) を積層した積層構造を提供するもので
ある。また該ポリオレフィン層(1) はポリプロピレン層
であり、該繊維強化プラスチック層(5) はガラス繊維強
化プラスチック層であることが望ましい。According to the present invention, a fiber reinforced plastic layer (5) is provided on a polyolefin layer (1) via a chlorinated polyolefin coating layer (2,3) as a means for solving the above-mentioned conventional problems. Are provided in a laminated structure. Preferably, the polyolefin layer (1) is a polypropylene layer, and the fiber reinforced plastic layer (5) is a glass fiber reinforced plastic layer.
【0006】[0006]
【作用】塩素化ポリオレフィンはポリオレフィンにも繊
維強化プラスチックにも親和性を有するので、ポリオレ
フィン層と繊維強化プラスチック層との間に介在させれ
ば、ポリオレフィン層と繊維強化プラスチック層との層
間剥離強度が大巾に向上する。[Function] Since chlorinated polyolefin has an affinity for both polyolefin and fiber reinforced plastic, if it is interposed between the polyolefin layer and the fiber reinforced plastic layer, the delamination strength between the polyolefin layer and the fiber reinforced plastic layer will increase. Improve greatly.
【0007】[0007]
【発明の実施の形態】本発明を図1〜図4に示す一実施
例によって説明すれば、(1) はポリプロピレン、ポリエ
チレン等のポリオレフィンの層であり、該ポリオレフィ
ン層(1) の表面をトルオール等の溶剤で清拭した後塩素
化ポリオレフィン第1塗布層(2) が形成される。該塩素
化ポリオレフィンとは例えば塩素化ポリプロピレン、塩
素化ポリエチレン等であり、望ましくは塩素含量が20
〜40重量%のものである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to an embodiment shown in FIGS. 1 to 4. (1) is a layer of a polyolefin such as polypropylene or polyethylene, and the surface of the polyolefin layer (1) is formed of toluene. After wiping with a solvent such as the above, a chlorinated polyolefin first coating layer (2) is formed. The chlorinated polyolefin is, for example, chlorinated polypropylene, chlorinated polyethylene or the like, preferably having a chlorine content of 20.
~ 40% by weight.
【0008】該塩素化ポリオレフィンは例えばトルオー
ル、キシロール、酢酸エチル、酢酸n-ブチル、メチルエ
チルケトン、メチルイソブチルケトン等の溶剤に溶解さ
れる。該塩素化ポリオレフィン溶液の固形分は通常20
〜40重量%、粘度は15〜40ポイズ(25℃)であ
り、塗布に際しては3〜7重量%、望ましくは4〜6重
量%程度に希釈され、スプレー塗布、刷毛塗り等によっ
てポリオレフィン層(1) 表面に塗布される。塗布量は通
常400g/m2 〜500g/m2 である。The chlorinated polyolefin is dissolved in a solvent such as toluene, xylol, ethyl acetate, n-butyl acetate, methyl ethyl ketone, and methyl isobutyl ketone. The solid content of the chlorinated polyolefin solution is usually 20
-40% by weight, the viscosity is 15-40 poise (25 ° C.), and it is diluted to 3-7% by weight, desirably about 4-6% by weight at the time of application, and the polyolefin layer (1) is spray-coated, brush-coated or the like. ) Applied to the surface. The coating amount is usually 400g / m 2 ~500g / m 2 .
【0009】該塩素化ポリオレフィン第1塗布層(2) を
塗布形成後望ましくは常温で放置して出来るだけ完全に
乾燥させる。次いで該塩素化ポリオレフィン第1塗布層
(2)上には更に上記塩素化ポリオレフィン希釈液を塗布
して塩素化ポリオレフィン第2塗布層(3) を形成し、該
塩素化ポリオレフィン第2塗布層(3) が未乾燥流動状態
の間にその上に繊維マット(4) を積層する。該繊維マッ
ト(4) はガラス繊維、炭素繊維、セラミック繊維、金属
繊維、ウィスカー等の無機繊維、ポリアミド繊維、ポリ
エステル繊維、アクリル繊維、ビスコース繊維、アセテ
ート繊維、塩化ビニル繊維、塩化ビニリデン繊維等の合
成繊維、木綿、麻、羊毛等の天然繊維の一種または二種
以上のウエブ、不織布、編織物等であり、目付け350
g/m2〜450g/m2 程度のものが使用される。After the first chlorinated polyolefin coating layer (2) is formed, it is desirably left at room temperature to be dried as completely as possible. Next, the chlorinated polyolefin first coating layer
(2) The above-mentioned chlorinated polyolefin diluent is further applied thereon to form a chlorinated polyolefin second coating layer (3), and while the chlorinated polyolefin second coating layer (3) is in an undried fluid state. The fiber mat (4) is laminated thereon. The fiber mat (4) is made of inorganic fiber such as glass fiber, carbon fiber, ceramic fiber, metal fiber, whisker, polyamide fiber, polyester fiber, acrylic fiber, viscose fiber, acetate fiber, vinyl chloride fiber, vinylidene chloride fiber, etc. A web, a nonwoven fabric, a knitted fabric, or the like of one or more natural fibers such as synthetic fibers, cotton, hemp, and wool;
g / m 2 ~450g / m 2 of about one is used.
【0010】塩素化ポリオレフィン第2塗布層(3) が未
乾燥流動状態の間に該繊維マット(4) を積層すると、該
繊維マット(4) に該塩素化ポリオレフィン第2塗布層
(3) が浸透する。該繊維マット(4) の上には更に同様の
繊維マット(4) を積層し、その上から不飽和ポリエステ
ル、スチレン、ジアリルフタレート等のプラスチック前
駆体を塗布し含浸させる。該プラスチック前駆体には例
えば過酸化ベンゾイル、メチルエチルケトンパーオキサ
イド、シクロヘキサノンパーオキサイド、t-ブチルパー
オキサイド、t-ブチルパーオキシベンゾエート、t-ブチ
ルパーオキシ-2- エチルヘキサナート、t-ブチルパーオ
キシピバレート、t-ブチルパーオキシネオデカノエー
ト、3,5,5-トリメチルヘキサノイルパーオキサイド、ラ
ウロイルパーオキサイドおよびジクミルパーオキサイド
等の重合触媒、クメンハイドロパーオキサイド、t-ブチ
ルハイドロパーオキサイド、ジイソプロピルベンゼンハ
イドロパーオキサイド等の重合促進剤、2,2'- アゾビス
イソブチロニトリル、2,2'- アゾビス-2- メチルブチロ
ニトロニトリル、2,2'- アゾビス-2,4- ジメチルバレロ
ニトリル、2,2'- アゾビス-2- シクロプロピルプロピオ
ニトリル、2,2'- アゾビス-4- メトキシ-2,4- ジメチル
バレロニトリル、1,1'- アゾビスシクロヘキサン-1- カ
ルボニトリル、2-フェニラゾ-4- メトキシ-2,4- ジメチ
ルバレロニトリル、2,2'-アゾビス-N,N'-ジメチレンイ
ソブチラミジン等アゾ系重合開始剤のような主として油
溶性重合開始剤を数重量%以下の量で溶解させておく。When the fiber mat (4) is laminated while the chlorinated polyolefin second coating layer (3) is in an undried fluid state, the chlorinated polyolefin second coating layer is applied to the fiber mat (4).
(3) penetrates. A similar fiber mat (4) is further laminated on the fiber mat (4), and a plastic precursor such as unsaturated polyester, styrene, diallyl phthalate or the like is applied and impregnated thereon. Examples of the plastic precursor include benzoyl peroxide, methyl ethyl ketone peroxide, cyclohexanone peroxide, t-butyl peroxide, t-butyl peroxybenzoate, t-butyl peroxy-2-ethyl hexanate, and t-butyl peroxypiperate. Polymerization catalysts such as valate, t-butyl peroxy neodecanoate, 3,5,5-trimethylhexanoyl peroxide, lauroyl peroxide and dicumyl peroxide, cumene hydroperoxide, t-butyl hydroperoxide, diisopropyl Polymerization accelerators such as benzene hydroperoxide, 2,2'-azobisisobutyronitrile, 2,2'-azobis-2-methylbutyronitrile, 2,2'-azobis-2,4-dimethylvalero Nitrile, 2,2'-azobis-2-cyclopropylpropionitrile, 2,2 ' -Azobis-4-methoxy-2,4-dimethylvaleronitrile, 1,1'-azobiscyclohexane-1-carbonitrile, 2-phenylazo-4-methoxy-2,4-dimethylvaleronitrile, 2,2'- An oil-soluble polymerization initiator such as an azo-based polymerization initiator such as azobis-N, N'-dimethyleneisobutyramidine is dissolved in an amount of several weight% or less.
【0011】プラスチック前駆体を塗布含浸させた後、
更にその上から同様な繊維マット(5A)を積層し、その上
にプラスチック前駆体を塗布含浸し、このような作業を
所定回繰返して所定層(5A,5B,5C)からなる繊維強化プラ
スチック層(5) を形成する。After coating and impregnating the plastic precursor,
Further, a similar fiber mat (5A) is laminated thereon, and a plastic precursor is applied and impregnated thereon, and this operation is repeated a predetermined number of times, and a fiber reinforced plastic layer composed of a predetermined layer (5A, 5B, 5C) is formed. Form (5).
【0012】上記実施例では一層目の繊維マット(4) に
塩素化ポリオレフィン第2塗布層(3) が含浸され、更に
該塩素化ポリオレフィン第1塗布層(2) は該塩素化ポリ
オレフィン第2塗布層(3) の溶剤で膨潤あるいは溶解し
て塩素化ポリオレフィン第2塗布層(3) と一体化し、こ
のような状態の繊維マット(4) の上に繊維強化プラスチ
ック層(5) が形成されるので、ポリオレフィン層(1) と
繊維強化プラスチック層(5) との密着性が大巾に向上
し、高い層間剥離強度が得られる。In the above embodiment, the first fiber mat (4) is impregnated with the chlorinated polyolefin second coating layer (3), and the chlorinated polyolefin first coating layer (2) is further impregnated with the chlorinated polyolefin second coating layer. Swelling or dissolving with the solvent of the layer (3) and integrating with the chlorinated polyolefin second coating layer (3), a fiber reinforced plastic layer (5) is formed on the fiber mat (4) in such a state. Therefore, the adhesion between the polyolefin layer (1) and the fiber-reinforced plastic layer (5) is greatly improved, and a high delamination strength is obtained.
【0013】[0013]
【発明の効果】本発明ではポリオレフィン層と該ポリオ
レフィン層を強化するための繊維強化プラスチック層と
の密着性を向上させるために塩素化ポリオレフィンを塗
布する場合に加熱を必要としないので、ポリオレフィン
層の成形形状は安定に維持され、例えば成形物を組合わ
せる場合に精度良く組合わせることが出来る。そして本
発明の積層構造は内側にポリオレフィン層が配置されて
いるために耐薬品性が良好であり、該ポリオレフィン層
を強化する繊維強化プラスチック層が該ポリオレフィン
層と強固に密着しているので、密度の高い積層構造が得
られ、そのためにポリオレフィン層は薄いものを使用す
ることが出来、材料が節約されかつ軽量化を図ることが
出来る。本発明の積層構造は例えば食品加工用タンク、
クーリングタワー、排ガス処理塔等の除害塔、あるいは
これらタンクや塔の現場での補修等に適用される。According to the present invention, no heating is required when applying a chlorinated polyolefin to improve the adhesion between the polyolefin layer and the fiber-reinforced plastic layer for reinforcing the polyolefin layer. The molded shape is stably maintained, and can be combined with high accuracy, for example, when combining molded products. The laminated structure of the present invention has good chemical resistance because the polyolefin layer is disposed on the inner side, and the fiber-reinforced plastic layer for reinforcing the polyolefin layer is firmly adhered to the polyolefin layer. , A thin polyolefin layer can be used, and materials can be saved and weight can be reduced. The laminated structure of the present invention is, for example, a food processing tank,
It is applied to the abatement towers such as cooling towers and exhaust gas treatment towers, or to repair these tanks and towers on site.
図1〜図4は本発明の一実施例を示すものである。 1 to 4 show one embodiment of the present invention.
【図1】ポリオレフィン層(1) に塩素化ポリオレフィン
第1塗布層(2) を形成した状態の側断面図FIG. 1 is a side sectional view showing a state where a chlorinated polyolefin first coating layer (2) is formed on a polyolefin layer (1).
【図2】塩素化ポリオレフィン第1塗布層(2) 上に更に
塩素化ポリオレフィン第2塗布層(3) を形成した状態の
側断面図FIG. 2 is a side sectional view showing a state where a second chlorinated polyolefin coating layer (3) is further formed on the chlorinated polyolefin first coating layer (2).
【図3】更にその上に繊維マット(4) を積層した状態の
側断面図FIG. 3 is a side sectional view showing a state in which a fiber mat (4) is further laminated thereon.
【図4】得られた積層構造の側断面図FIG. 4 is a side sectional view of the obtained laminated structure.
1 ポリオレフィン層 2 塩素化ポリオレフィン第1塗布層 3 塩素化ポリオレフィン第2塗布層 4 繊維マット 5 繊維強化プラスチック層 1 Polyolefin layer 2 Chlorinated polyolefin first coating layer 3 Chlorinated polyolefin second coating layer 4 Fiber mat 5 Fiber reinforced plastic layer
Claims (2)
塗布層を介して繊維強化プラスチック層を積層したこと
を特徴とする積層構造1. A laminated structure wherein a fiber reinforced plastic layer is laminated on a polyolefin layer via a chlorinated polyolefin coating layer.
あり、該繊維強化プラスチック層はガラス繊維強化プラ
スチック層である請求項1に記載の積層構造2. The laminated structure according to claim 1, wherein said polyolefin layer is a polypropylene layer, and said fiber reinforced plastic layer is a glass fiber reinforced plastic layer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000053139A JP3535441B2 (en) | 2000-02-29 | 2000-02-29 | Laminated structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000053139A JP3535441B2 (en) | 2000-02-29 | 2000-02-29 | Laminated structure |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2001239630A true JP2001239630A (en) | 2001-09-04 |
JP3535441B2 JP3535441B2 (en) | 2004-06-07 |
Family
ID=18574561
Family Applications (1)
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JP2000053139A Expired - Lifetime JP3535441B2 (en) | 2000-02-29 | 2000-02-29 | Laminated structure |
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JP (1) | JP3535441B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008528767A (en) * | 2005-01-31 | 2008-07-31 | ティンバーウルフ コーポレイション | System and method for patching polyethylene pipes |
-
2000
- 2000-02-29 JP JP2000053139A patent/JP3535441B2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008528767A (en) * | 2005-01-31 | 2008-07-31 | ティンバーウルフ コーポレイション | System and method for patching polyethylene pipes |
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JP3535441B2 (en) | 2004-06-07 |
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