JPH079614A - Steel panel for coating with high density ethylenic resin - Google Patents
Steel panel for coating with high density ethylenic resinInfo
- Publication number
- JPH079614A JPH079614A JP17770493A JP17770493A JPH079614A JP H079614 A JPH079614 A JP H079614A JP 17770493 A JP17770493 A JP 17770493A JP 17770493 A JP17770493 A JP 17770493A JP H079614 A JPH079614 A JP H079614A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- steel panel
- coating
- acid
- steel sheet
- 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
- 229920005989 resin Polymers 0.000 title claims abstract description 39
- 239000011347 resin Substances 0.000 title claims abstract description 39
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 25
- 239000010959 steel Substances 0.000 title claims abstract description 25
- 238000000576 coating method Methods 0.000 title claims abstract description 12
- 239000011248 coating agent Substances 0.000 title claims abstract description 11
- 239000002253 acid Substances 0.000 claims abstract description 5
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 claims abstract description 5
- 150000003839 salts Chemical class 0.000 claims abstract description 4
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 3
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 3
- 150000008064 anhydrides Chemical class 0.000 claims abstract description 3
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims abstract description 3
- 239000003822 epoxy resin Substances 0.000 claims abstract description 3
- 238000012986 modification Methods 0.000 claims abstract description 3
- 230000004048 modification Effects 0.000 claims abstract description 3
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 3
- 229920001225 polyester resin Polymers 0.000 claims abstract description 3
- 239000004645 polyester resin Substances 0.000 claims abstract description 3
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims abstract description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 3
- 238000001035 drying Methods 0.000 claims abstract 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 15
- 239000005977 Ethylene Substances 0.000 claims description 15
- 150000002430 hydrocarbons Chemical group 0.000 claims description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims 1
- 229910052698 phosphorus Inorganic materials 0.000 claims 1
- 239000011574 phosphorus Substances 0.000 claims 1
- 229910019142 PO4 Inorganic materials 0.000 abstract description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract description 3
- 239000010452 phosphate Substances 0.000 abstract description 3
- 125000001183 hydrocarbyl group Chemical group 0.000 abstract 1
- 238000011282 treatment Methods 0.000 description 8
- 229920001903 high density polyethylene Polymers 0.000 description 5
- 239000004700 high-density polyethylene Substances 0.000 description 5
- 238000007747 plating Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 229920006229 ethylene acrylic elastomer Polymers 0.000 description 2
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- AYKYXWQEBUNJCN-UHFFFAOYSA-N 3-methylfuran-2,5-dione Chemical compound CC1=CC(=O)OC1=O AYKYXWQEBUNJCN-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- HNEGQIOMVPPMNR-IHWYPQMZSA-N citraconic acid Chemical compound OC(=O)C(/C)=C\C(O)=O HNEGQIOMVPPMNR-IHWYPQMZSA-N 0.000 description 1
- 229940018557 citraconic acid Drugs 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- -1 ester compound Chemical class 0.000 description 1
- 229920006225 ethylene-methyl acrylate Polymers 0.000 description 1
- 239000005043 ethylene-methyl acrylate Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001179 medium density polyethylene Polymers 0.000 description 1
- 239000004701 medium-density polyethylene Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 150000007530 organic bases Chemical class 0.000 description 1
- 150000002895 organic esters Chemical class 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、高密度エチレン系樹脂
を鋼板に被覆する際、良好な密着性が得られるように表
面処理した鋼板に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel sheet which is surface-treated so that good adhesion can be obtained when the steel sheet is coated with a high density ethylene resin.
【０００２】[0002]
【従来の技術】近年、地上あるいは地下に数多くの管
（パイプ）が使用され、その材料として一般にコンクリ
ート管，鉄管，鉛管あるいはステンレス管，塩化ビニル
管等数多くの種類のものが使用されている。2. Description of the Related Art In recent years, many pipes have been used on the ground or underground, and in general, many kinds of pipes such as concrete pipes, iron pipes, lead pipes or stainless pipes, and vinyl chloride pipes have been used.
【０００３】その用途は気体，液体などの輸送、あるい
は電線などの保護のために用いられるが、コンクリート
管，鉄管，鉛管は重量があり取扱いに不便である。ステ
ンレス管は高価であり、塩化ビニルなどを使用したプラ
スチック管は破損しやすい欠点を持っており、安価で取
扱いやすく耐久性に優れた材料の開発が望まれている。Its use is for transportation of gases, liquids, etc., or protection of electric wires, etc., but concrete pipes, iron pipes, and lead pipes are heavy and inconvenient to handle. Stainless steel pipes are expensive, and plastic pipes made of vinyl chloride or the like have a drawback that they are easily damaged. Therefore, it is desired to develop a material that is inexpensive, easy to handle, and has excellent durability.
【０００４】そこで、重量を軽減するために鋼板の厚み
を薄くして防錆のためプラスチックを組み合わせること
が着目された複合材が開発されている。Therefore, a composite material has been developed in which attention is paid to the combination of plastics for rust prevention by reducing the thickness of the steel sheet in order to reduce the weight.
【０００５】たとえば優れた方法の一つとして、幅１０
０ｍｍ，厚み０．５ｍｍの溶融亜鉛めっき鋼板をクロメ
ート系の化成処理を行い、有機系の下地処理を行い、押
し出し法によって２００μｍの低密度のポリエチレン系
樹脂が被覆され、さらに任意の厚み、一般的には１〜２
０ｍｍの高密度ポリエチレン樹脂が押し出し法によって
被覆すると同時に、管状に成形される方法が提案されて
いる。For example, as one of excellent methods, the width 10
Chromate-based chemical conversion treatment of hot-dip galvanized steel sheet of 0 mm and 0.5 mm thickness, organic base treatment, and low density polyethylene resin of 200 μm are coated by extrusion method. 1 to 2
A method has been proposed in which a 0 mm high-density polyethylene resin is coated by an extrusion method and simultaneously formed into a tubular shape.
【０００６】しかし、前述の方法では過酷な雰囲気下で
高密度ポリエチレンとの密着性の劣化が著しく、しかも
高速生産するためには被覆工程で設備が繁雑になり、ま
た塗料中に有機溶剤を含む場合は作業環境を非常に悪く
している。However, in the above-mentioned method, the adhesiveness with high-density polyethylene is significantly deteriorated in a harsh atmosphere, and the equipment is complicated in the coating process for high-speed production, and the paint contains an organic solvent. If you have a very bad working environment.
【０００７】[0007]
【発明が解決しようとする課題】本発明は上記の欠点を
解消するもので、高密度エチレン系樹脂を容易に、しか
も優れた密着性で被覆できる鋼板を提供することにあ
る。SUMMARY OF THE INVENTION The present invention solves the above drawbacks and provides a steel sheet which can be coated with a high density ethylene resin easily and with excellent adhesion.
【０００８】[0008]
【課題を解決するための手段】本発明は、まず表面処理
された鋼板に熱硬化性樹脂を含む被膜を被覆した鋼板を
作製する。次に、５〜２００μｍの低密度と中密度ある
いはリニア低密度の酸変性のエチレン系の樹脂を被覆し
加熱処理した高密度エチレン系樹脂被覆用鋼板を製造す
る。According to the present invention, a steel sheet is first prepared by coating a surface-treated steel sheet with a coating containing a thermosetting resin. Next, a high-density ethylene-based resin-coated steel sheet coated with a low-density 5-200 μm low-density and medium-density or linear low-density acid-modified ethylene-based resin and heat-treated is manufactured.
【０００９】以下、本発明を詳細に説明する。The present invention will be described in detail below.
【００１０】本発明において用いられる表面処理鋼板は
板厚０．１〜２．０ｍｍの冷延鋼板で、表面処理にはＺ
ｎ，Ｎｉ，Ｃｒ，Ａｌ単独、あるいはこれらの金属を含
む合金めっき，複層めっき、あるいはクロム酸塩処理，
リン酸塩処理などの化成処理が含まれる。もちろん鋼板
の表、裏は異なる表面処理であっても差し支えない。The surface-treated steel sheet used in the present invention is a cold-rolled steel sheet having a plate thickness of 0.1 to 2.0 mm, and Z is used for the surface treatment.
n, Ni, Cr, Al alone, or alloy plating containing these metals, multi-layer plating, or chromate treatment,
A chemical conversion treatment such as a phosphate treatment is included. Of course, the front and back of the steel sheet may have different surface treatments.
【００１１】上述のめっき量あるいは化成処理皮膜量は
特に制限されるものではないが、一般に管用にはＺｎ，
Ｓｎ，Ａｌ，Ｃｕめっきなどは０．５〜５０ｇ／ｍ
2が、Ｃｒ，Ｎｉめっきは０．０１〜５ｇ／ｍ2、化成処
理は０．０１〜３ｇ／ｍ2が使用される。The above-mentioned plating amount or chemical conversion treatment film amount is not particularly limited, but in general, Zn,
0.5 to 50 g / m for Sn, Al, Cu plating, etc.
2, Cr, Ni plating is 0.01-5 g / m 2, the chemical conversion treatment is 0.01 to 3 g / m 2 is used.
【００１２】上述の表面処理された鋼板は、熱硬化の性
質を有するエポキシ，ポリエステル，アクリル系樹脂の
１種以上、クロム酸，ケイ酸あるいはその塩，アルミ
ナ，リン酸塩の１種以上を樹脂に対して０．１〜３重量
％含む溶液を主成分とした水溶液を固形分として０．１
〜３０ｇ／ｍ2塗布し、乾燥する。The above-mentioned surface-treated steel sheet is made of one or more of epoxy, polyester and acrylic resins having a thermosetting property, and one or more of chromic acid, silicic acid or its salt, alumina and phosphate. With respect to 0.1 to 3% by weight of a solution containing as a main component a solid content of 0.1
Apply ~ 30 g / m 2 and dry.
【００１３】次に、上述の表面処理された鋼板に被覆さ
れる熱可塑性樹脂には熱再活性化して基材と良好な接着
性を示すものが好ましい。これらの樹脂は熱硬化性樹脂
と複層あるいは混合されたものであっても差し支えない
が、上層つまり高密度ポリエチレンと接するところでは
熱可塑性樹脂でなければならない。Next, the thermoplastic resin coated on the above-mentioned surface-treated steel sheet is preferably one which is reactivated by heat and exhibits good adhesion to the substrate. These resins may be multi-layered or mixed with a thermosetting resin, but must be a thermoplastic resin in contact with the upper layer, that is, high density polyethylene.
【００１４】本発明に適した樹脂としては、不飽和カル
ボン酸またはその無水物のアクリル酸、メタクリル酸、
マレイン酸、無水マレイン酸、シトラコン酸、無水シト
ラコン酸、イタコン酸、無水イタコン酸あるいはこれら
の誘導体のモノエポキシ化合物と上記酸とのエステル化
合物，分子内にこれらの酸と反応し得る基を有する重合
体と酸との反応生成物などを炭化水素基に導入し変性量
を０．１〜２０％持たせた酸変性エチレン系樹脂で、低
密度１に対して中密度あるいはリニア低密度を０．１〜
１含んだものが好ましい。低密度エチレン系樹脂のみで
は経時密着性が劣る。Resins suitable for the present invention include unsaturated carboxylic acids or their anhydrides, acrylic acid, methacrylic acid,
Maleic acid, maleic anhydride, citraconic acid, citraconic acid anhydride, itaconic acid, itaconic acid or a derivative of a monoepoxy compound of these derivatives with an ester compound of the above-mentioned acid, a compound having a group capable of reacting with these acids in the molecule An acid-modified ethylene resin in which a reaction product of a coalesce and an acid is introduced into a hydrocarbon group so as to have a modification amount of 0.1 to 20%. A low density of 1 to a medium density or a linear low density of 0. 1 to
Those containing 1 are preferable. Adhesion with time is poor only with a low-density ethylene resin.
【００１５】不飽和カルボキシル酸を導入した場合は陽
イオンとしてＮａ，Ｋ，Ｍｇ，Ｚｎ等の金属イオンを含
む。When unsaturated carboxylic acid is introduced, it contains metal ions such as Na, K, Mg and Zn as cations.
【００１６】また、エチレン−アクリル酸メチルに架橋
用コモノマーとして不飽和有機エステルを結合した３元
共重合ゴムであるエチレン・アクリルゴム，あるいはオ
レフィン系熱可塑性エラストマーの添加が密着性に対し
てさらに有効である。その添加量は１０％以内である。Further, the addition of ethylene-acrylic rubber, which is a terpolymer rubber having ethylene-methyl acrylate bonded with an unsaturated organic ester as a crosslinking comonomer, or an olefin-based thermoplastic elastomer, is more effective for adhesion. Is. The amount added is within 10%.
【００１７】前述の樹脂は水あるいは有機溶剤による分
散状態、粉、あるいはフィルム状の状態で被覆され、加
熱される。The above-mentioned resin is coated with water or an organic solvent in a dispersed state, a powder or a film state, and heated.
【００１８】被覆厚みは５〜２００μｍが好ましい。５
μｍ以下では高密度エチレン系樹脂との密着性が悪い。
２００μｍ以上になるとその後の成形加工性を悪くし、
高密度エチレン系樹脂との密着性も飽和するので好まし
くない。好ましくは５０〜１００μｍである。加熱温度
は使用する樹脂の性状によっても異なるが一般には１０
０〜２５０℃の範囲でよく、本発明の被覆鋼板は高密度
エチレン系樹脂を被覆する際加熱されるので仮接着でも
よく、積載したときにブロッキングを起こさなければ、
あるいは取扱い時に樹脂層が剥離しなければ十分であ
る。The coating thickness is preferably 5 to 200 μm. 5
If the thickness is less than μm, the adhesion to the high density ethylene resin is poor.
If it is 200 μm or more, the subsequent moldability deteriorates,
Adhesion with the high-density ethylene-based resin is also saturated, which is not preferable. It is preferably 50 to 100 μm. Although the heating temperature varies depending on the properties of the resin used, it is generally 10
The temperature may be in the range of 0 to 250 ° C., and since the coated steel sheet of the present invention is heated when coating the high-density ethylene-based resin, it may be temporarily bonded, and if blocking does not occur when loaded.
Alternatively, it is sufficient if the resin layer does not peel off during handling.
【００１９】かくして、高密度エチレン系樹脂被覆用の
鋼板を得ることができる。また、使用例として管用を主
体に述べたが管用に限定されるものではない。Thus, a steel sheet for coating high density ethylene resin can be obtained. Moreover, although the description has been made mainly for pipes as a usage example, it is not limited to pipes.
【００２０】[0020]
【実施例】以下、本発明の実施例について詳細に説明す
る。EXAMPLES Examples of the present invention will be described in detail below.
【００２１】実施例１ ０．５ｍｍの軟鋼板に２０ｇ／ｍ2のＺｎめっきを行
い、さらにＣｒとして０．０１５ｇ／ｍ2クロメート処
理を施した後、プライマー処理としてエポキシ１：ポリ
エステル５：クロム酸亜鉛：０．０１：シリカ０．０３
から成る水溶性の塗料を３μｍになるように塗布し、１
２０℃×２０秒の加熱処理を行った。次にアクリルで変
性した低密度ポリエチレン１に対して中密度ポリエチレ
ン０．５からなる樹脂に、２％のエチレン・アクリルゴ
ムを加えた５０μｍのフィルムを積層し１５０℃で６０
秒加熱して本発明の鋼板を作成した。密着性の評価方法
は高密度エチレン系樹脂積層後に本発明の鋼板とＴピー
ル試験を行い、その剥離強度で評価を行った。その結
果、本発明のものは初期の密着力は６ｋｇ／ｃｍで８０
℃温水浸漬９００ｈｒ経時後においても７ｋｇ／ｃｍで
あったが、本発明の変性オレフィン樹脂より中密度のも
のを除いたものは初期は３ｋｇ／ｃｍで温水経時すると
１ｋｇ／ｃｍ以下の密着力であった。なお、評価は以下
の項目について行った。 初期密着性試験：表１，２の条件に従って作成した本発
明の鋼板を巾３ｃｍ，長さ１０ｃｍの試験片に加工し、
試験片と同サイズの厚み３ｍｍの高密度ポリエチレン板
を積層し２００℃で２分間の加熱処理を行った。その
後、５０ｍｍ／分の剥離速度でＴピール試験を行った。 経時後の密着性試験：前述と同様な条件で高密度ポリエ
チレン板を積層し、８０℃の温水中に９００時間浸漬
し、その後前述と同様な方法で剥離試験を行った。 表１，２は前述に準じた本発明の鋼板の作成条件、表３
に高密度エチレン系樹脂の積層条件と密着性の評価結果
を示した。Example 1 A 0.5 mm mild steel plate was plated with 20 g / m 2 of Zn and further treated with 0.015 g / m 2 of chromate as Cr, followed by epoxy 1: polyester 5: chromic acid as a primer treatment. Zinc: 0.01: Silica 0.03
Apply a water-soluble paint consisting of
The heat treatment was performed at 20 ° C. for 20 seconds. Next, a 50 μm film prepared by adding 2% ethylene-acrylic rubber to a resin composed of 0.5 low density polyethylene modified with acrylic and 0.5% medium density polyethylene was laminated at 60 ° C. at 150 ° C.
Second heating was performed to produce the steel sheet of the present invention. The adhesion was evaluated by performing a T-peel test with the steel sheet of the present invention after laminating a high-density ethylene resin, and the peel strength was evaluated. As a result, in the case of the present invention, the initial adhesive strength was 80 at 6 kg / cm.
The value was 7 kg / cm even after 900 hours of immersion in warm water at 0 ° C, but the modified olefin resin of the present invention except for the medium-density resin had an initial adhesion of 3 kg / cm and an adhesive force of 1 kg / cm or less after aging in hot water. It was The following items were evaluated. Initial adhesion test: The steel sheet of the present invention prepared according to the conditions of Tables 1 and 2 was processed into a test piece having a width of 3 cm and a length of 10 cm,
A high-density polyethylene plate having the same size as the test piece and a thickness of 3 mm was laminated and heat-treated at 200 ° C. for 2 minutes. Then, a T-peel test was performed at a peeling speed of 50 mm / min. Adhesion test after aging: High-density polyethylene plates were laminated under the same conditions as described above, immersed in warm water at 80 ° C for 900 hours, and then a peeling test was performed by the same method as described above. Tables 1 and 2 show conditions for producing the steel sheet of the present invention according to the above, and Table 3
Table 2 shows the lamination conditions of high-density ethylene-based resin and the evaluation results of adhesion.
【００２２】 [0022]
【００２３】 [0023]
【００２４】 [0024]
【００２５】 [0025]
【００２６】 [0026]
【００２７】[0027]
【発明の効果】本発明の高密度エチレン系樹脂被覆用鋼
板は、高密度エチレン系樹脂との密着性に優れ、管用材
料および平板材料として用いることができる。The steel sheet for high density ethylene resin coating of the present invention has excellent adhesion to the high density ethylene resin and can be used as a pipe material and a flat plate material.
Claims (1)
ステル，アクリル系樹脂の１種以上と、この樹脂に対し
て０．１〜３０重量％のクロム酸塩，ケイ酸あるいはそ
の塩、アルミナ，リン酸塩の１種以上を含んだ乾燥後の
皮膜量が０．０１〜３ｇ／ｍ2である塗膜と、その上層
に不飽和カルボン酸またはその無水物あるいはこの誘導
体を炭化水素基に導入し変性量を０．１〜２０％持たせ
た酸変性低密度エチレン系樹脂１に対して中密度あるい
はリニア低密度エチレン系樹脂を０．１〜１含む樹脂を
５〜２００μｍ被覆した樹脂層からなる高密度エチレン
系樹脂被覆用鋼板。1. A surface-treated steel sheet containing at least one of epoxy, polyester and acrylic resins, and 0.1 to 30% by weight of chromate, silicic acid or a salt thereof, alumina and phosphorus based on the resin. A coating film containing one or more acid salts and having a coating amount after drying of 0.01 to 3 g / m 2 , and an unsaturated carboxylic acid or its anhydride or its derivative introduced into the hydrocarbon group in the upper layer. An acid-modified low-density ethylene-based resin 1 having a modification amount of 0.1 to 20%, and a resin layer coated with a resin containing 0.1 to 1 of a medium-density or linear low-density ethylene-based resin in an amount of 5 to 200 μm Steel sheet for high density ethylene resin coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17770493A JP3014568B2 (en) | 1993-06-25 | 1993-06-25 | Steel sheet for high density ethylene resin coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17770493A JP3014568B2 (en) | 1993-06-25 | 1993-06-25 | Steel sheet for high density ethylene resin coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH079614A true JPH079614A (en) | 1995-01-13 |
| JP3014568B2 JP3014568B2 (en) | 2000-02-28 |
Family
ID=16035650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17770493A Expired - Fee Related JP3014568B2 (en) | 1993-06-25 | 1993-06-25 | Steel sheet for high density ethylene resin coating |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3014568B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997000337A1 (en) * | 1995-06-15 | 1997-01-03 | Nippon Steel Corporation | Surface-treated steel sheet having chemical conversion resin coating and process for producing the same |
| JPH0919175A (en) * | 1996-05-14 | 1997-01-17 | Yoshiro Nakamatsu | High-efficiency driver |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7429593B2 (en) | 2001-09-14 | 2008-09-30 | Shionogi & Co., Ltd. | Utilities of amide compounds |
-
1993
- 1993-06-25 JP JP17770493A patent/JP3014568B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997000337A1 (en) * | 1995-06-15 | 1997-01-03 | Nippon Steel Corporation | Surface-treated steel sheet having chemical conversion resin coating and process for producing the same |
| US5897948A (en) * | 1995-06-15 | 1999-04-27 | Nippon Steel Corporation | Surface-treated steel sheet with resin-based chemical treatment coating and process for its production |
| JPH0919175A (en) * | 1996-05-14 | 1997-01-17 | Yoshiro Nakamatsu | High-efficiency driver |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3014568B2 (en) | 2000-02-28 |
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