JP2020139184A - Stone-like antirust stainless steel, and drain ditch lid for hot spring facility - Google Patents
Stone-like antirust stainless steel, and drain ditch lid for hot spring facility Download PDFInfo
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- JP2020139184A JP2020139184A JP2019034704A JP2019034704A JP2020139184A JP 2020139184 A JP2020139184 A JP 2020139184A JP 2019034704 A JP2019034704 A JP 2019034704A JP 2019034704 A JP2019034704 A JP 2019034704A JP 2020139184 A JP2020139184 A JP 2020139184A
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Abstract
Description
本発明は、石材調防錆ステンレス、および温泉施設用の排水溝蓋に関するものである。 The present invention relates to stone-like rust-preventive stainless steel and a drain lid for a hot spring facility.
従来、温泉施設用の排水溝や排水溝蓋として、耐久性、意匠性に優れる石材が使用されている。排水溝の清掃の際、蓋をどかして清掃を行うが、重量があるため、作業が容易でないという問題を有している。 Conventionally, stone materials with excellent durability and design have been used as drainage ditches and drainage ditch lids for hot spring facilities. When cleaning the drainage ditch, the lid is removed for cleaning, but there is a problem that the work is not easy due to the weight.
軽量化を目的として、排水溝および排水溝蓋を他の材料、例えば、耐食性が高いステンレス等へ変更することが考えられているが、耐食性が高いステンレスでも温泉成分により錆が発生するとともに、石材に比べて意匠性が劣るという問題を有している。 For the purpose of weight reduction, it is considered to change the drainage ditch and the drainage ditch lid to other materials such as stainless steel with high corrosion resistance, but even stainless steel with high corrosion resistance causes rust due to hot spring components and stone materials. It has a problem that the design is inferior to that of.
鉄系のめっき鋼板の防錆防食被覆として、セメントと溶剤系アクリル樹脂の混合皮膜からなる被覆であって、前記皮膜の含水率が水／セメント質量比で０．０１以下である防錆防食被覆鋼板が提案されている（例えば、特許文献１参照）。 As a rust-preventive and anti-corrosion coating for iron-based plated steel sheets, it is a coating composed of a mixed film of cement and solvent-based acrylic resin, and the water content of the film is 0.01 or less in terms of water / cement mass ratio. Steel sheets have been proposed (see, for example, Patent Document 1).
特許文献１は、鉄系鋼板用の防錆防食被覆であり、ステンレスに対し防錆効果および密着性を有するか明らかではなく、また、意匠性について何ら考慮されるものではなかった。 Patent Document 1 is a rust-preventive and anti-corrosion coating for iron-based steel sheets, and it is not clear whether it has a rust-preventive effect and adhesiveness to stainless steel, and no consideration is given to designability.
本発明は、上記に鑑みてなされたものであって、防錆効果および意匠性に優れるとともに、基材と塗膜との密着性が高い石材調防錆ステンレス、および温泉施設用の排水溝蓋を提供することを目的とする。 The present invention has been made in view of the above, and is excellent in rust preventive effect and design, stone-like rust preventive stainless steel having high adhesion between a base material and a coating film, and a drainage groove lid for a hot spring facility. The purpose is to provide.
上述した課題を解決し、目的を達成するために、本発明にかかる石材調防錆ステンレスは、ステンレスからなる基材上に、セメント１００質量部に対し、カチオン系ポリマーを３０〜２００質量部の割合で含む塗膜が形成されていることを特徴とする。 In order to solve the above-mentioned problems and achieve the object, the stone-like rust-preventive stainless steel according to the present invention contains 30 to 200 parts by mass of a cationic polymer on a base material made of stainless steel with respect to 100 parts by mass of cement. It is characterized in that a coating film containing a proportion is formed.
また、本発明にかかる石材調防錆ステンレスは、上記発明において、前記塗膜は白色顔料を含むことを特徴とする。 Further, the stone-like rust-preventive stainless steel according to the present invention is characterized in that, in the above invention, the coating film contains a white pigment.
また、本発明にかかる石材調防錆ステンレスは、上記発明において、前記基材と前記塗膜との間に、プライマー層を有することを特徴とする。 Further, the stone-like rust-preventive stainless steel according to the present invention is characterized in that, in the above invention, a primer layer is provided between the base material and the coating film.
また、本発明にかかる石材調防錆ステンレスは、上記発明において、前記塗膜上に、クリアー層を有することを特徴とする。 Further, the stone-like rust-preventive stainless steel according to the present invention is characterized in that, in the above invention, a clear layer is provided on the coating film.
また、本発明にかかる温泉施設用の排水溝蓋は、上記のいずれか一つに記載の石材調防錆ステンレスを使用することを特徴とする。 Further, the drainage ditch lid for the hot spring facility according to the present invention is characterized in that the stone-like rust-preventive stainless steel described in any one of the above is used.
本発明によれば、温泉等の腐食性の高い排水等に対しても高い防錆効果を有するとともに、ステンレス鋼材への密着性に優れ、高い意匠性を有する石材調防錆ステンレスを得ることができる。 According to the present invention, it is possible to obtain a stone-like rust-preventive stainless steel having a high rust-preventive effect against highly corrosive drainage such as hot springs, excellent adhesion to stainless steel materials, and high design. it can.
以下、本発明を実施するための形態を詳細に説明する。なお、以下の実施の形態により本発明が限定されるものではない。 Hereinafter, embodiments for carrying out the present invention will be described in detail. The present invention is not limited to the following embodiments.
本発明の実施の形態にかかる石材調防錆ステンレスは、ステンレスからなる基材上に、セメント１００質量部に対し、カチオン系ポリマーを３０〜２００質量部の割合で含む塗膜が形成されている。 In the stone-like rust-preventive stainless steel according to the embodiment of the present invention, a coating film containing a cationic polymer in a ratio of 30 to 200 parts by mass is formed on a base material made of stainless steel with respect to 100 parts by mass of cement. ..
基材として使用するステンレスは、特に制約がなく、マルテンサイト系、フェライト系、オーステナイト系、オーステナイト・フェライト系等を使用することができる。 The stainless steel used as the base material is not particularly limited, and martensitic, ferrite, austenitic, austenitic-ferritic and the like can be used.
本発明におけるセメントとは、ポルトランドセメントを意味するが、高炉セメントなどの混合セメントや、アルミナセメント等を除外するものではない。 The cement in the present invention means Portland cement, but does not exclude mixed cement such as blast furnace cement and alumina cement.
カチオン系ポリマーとしては、ポリアクリル酸エステル、ポリエチレン酢酸ビニル等に加え、カチオン性に帯電していれば、エポキシ樹脂、ウレタン樹脂、ポリオレフィン樹脂等も使用することができる。カチオン性に帯電するカリオン性ポリマーは、セメントの水和反応で発生する金属陽イオンと反応することなく、カチオン性ポリマーの分散性が向上し、均一な塗膜を得ることができる。また、上記に列記したポリマーの混合物であってもよい。カチオン系ポリマーは、水にカチオン系ポリマーが分散された樹脂エマルションとして、例えば、不揮発成分を２０〜５０％含み、粘度が０より大きく７００ＭＰａ・ｓ以下でｐｈ３．５〜７．０であるカチオン系アクリルポリマー等を使用することができる。 As the cationic polymer, in addition to polyacrylic acid ester, polyethylene vinyl acetate and the like, epoxy resin, urethane resin, polyolefin resin and the like can be used as long as they are cationically charged. The cationically charged carionic polymer does not react with the metal cations generated in the hydration reaction of cement, the dispersibility of the cationic polymer is improved, and a uniform coating film can be obtained. It may also be a mixture of the polymers listed above. The cationic polymer is a resin emulsion in which the cationic polymer is dispersed in water, for example, a cationic polymer containing 20 to 50% of a non-volatile component, having a viscosity greater than 0 and 700 MPa · s or less, and having a pH of 3.5 to 7.0. Acrylic polymer or the like can be used.
塗膜は、セメント１００質量部に対し、カチオン系ポリマーを３０〜２００質量部の割合で含むものである。カチオン系ポリマーの割合がセメント１００質量部に対し３０質量部未満である場合、基材に対する密着性が低下する。また、カチオン系ポリマーの割合がセメント１００質量部に対し２００質量部を超えると、防錆効果が低下するとともに、意匠性に劣るものとなる。塗膜は、セメント１００質量部に対し、カチオン系ポリマーを７５〜１２０質量部の割合で含むことが好ましい。 The coating film contains 30 to 200 parts by mass of a cationic polymer with respect to 100 parts by mass of cement. When the ratio of the cationic polymer is less than 30 parts by mass with respect to 100 parts by mass of cement, the adhesion to the substrate is lowered. Further, when the ratio of the cationic polymer exceeds 200 parts by mass with respect to 100 parts by mass of the cement, the rust preventive effect is lowered and the design is inferior. The coating film preferably contains 75 to 120 parts by mass of a cationic polymer with respect to 100 parts by mass of cement.
塗膜は、意匠性向上のために、顔料を含むことが好ましい。石材調の塗膜とするためには、例えば、二酸化チタン、酸化亜鉛、炭酸亜鉛、炭酸カルシム、硫酸バリウム、水酸化アルミニウム等の白色顔料を、セメント１００質量部に対し、５〜２０質量部添加することが好ましい。また、白色顔料に加え、緑顔料を、セメント１００質量部に対し０．００５〜０．２質量部加えることで、意匠性が向上する。 The coating film preferably contains a pigment in order to improve the design. In order to obtain a stone-like coating film, for example, 5 to 20 parts by mass of white pigments such as titanium dioxide, zinc oxide, zinc carbonate, calcium carbonate, barium sulfate, and aluminum hydroxide are added to 100 parts by mass of cement. It is preferable to do so. Further, by adding 0.005 to 0.2 parts by mass of green pigment with respect to 100 parts by mass of cement in addition to the white pigment, the design property is improved.
本発明の石材調防錆ステンレスは、基材と塗膜との間に、プライマー層を有することが好ましい。基材と塗膜との間にプライマー層を設けることにより、基材と塗膜との密着性を向上することができる。 The stone-like rust-preventive stainless steel of the present invention preferably has a primer layer between the base material and the coating film. By providing a primer layer between the base material and the coating film, the adhesion between the base material and the coating film can be improved.
また、本発明の石材調防錆ステンレスは、塗膜上に、クリアー層を有することが好ましい。クリアー層を設けることにより、塗膜のチョーキングを防止するとともに、防錆効果を向上することができる。クリアー層としては、エポキシ樹脂系、ウレタン樹脂系、アクリル樹脂系のいずれも使用可能であるが、クリアー層の黄変を防止する観点では、ビスフェノールＡを主剤とし、硬化剤が酸無水物系のエポキシ樹脂からなるクリアー層、およびアクリル樹脂のクリアー層が特に好ましい。 Further, the stone-like rust-preventive stainless steel of the present invention preferably has a clear layer on the coating film. By providing the clear layer, chalking of the coating film can be prevented and the rust preventive effect can be improved. As the clear layer, any of epoxy resin type, urethane resin type, and acrylic resin type can be used, but from the viewpoint of preventing yellowing of the clear layer, bisphenol A is the main agent and the curing agent is acid anhydride type. A clear layer made of an epoxy resin and a clear layer made of an acrylic resin are particularly preferable.
塗膜は、セメントと、樹脂エマルションと、必要に応じて顔料を所定の割合で混合したポリマーセメントペーストとし、このポリマーセメントペーストを基材上にローラーブラシ、ハケ等で手塗りのほか、ローラーコータやフローコータ等による塗装で形成することができる。基材上にポリマーセメントペーストを塗布した後、常温で１晩乾燥させて塗膜が形成される。ポリマーセメントペーストに水を添加することにより粘度を適宜調整することにより、塗膜の膜厚の調整が容易となる。 The coating film is a polymer cement paste in which cement, a resin emulsion, and a pigment are mixed in a predetermined ratio as needed, and this polymer cement paste is hand-painted on a base material with a roller brush, a brush, or the like, or a roller coater. It can be formed by painting with a flow coater or the like. After applying the polymer cement paste on the substrate, it is dried overnight at room temperature to form a coating film. By appropriately adjusting the viscosity by adding water to the polymer cement paste, it becomes easy to adjust the film thickness of the coating film.
表１に示す割合で、セメントとカチオン系ポリマー（不揮発成分を２０〜５０％含み、粘度が０より大きく７００ＭＰａ・ｓ以下でｐｈ３．５〜７．０であるカチオン系アクリルポリマー）の水との混和液とを混合したセメントペーストに、セメントペースト１００質量部に対し、白顔料５質量部、および緑顔料０．０１質量部、および水５質量部を加えて、更に混合して塗膜液を調製した。１５０ｍｍ×７０ｍｍ×２ｍｍのステンレス板（ＳＵＳ１０４）に、調製した塗膜液を１．５〜２．５ｇ/ｍ２（膜厚１〜２ｍｍ）となるように塗布し、常温で１晩乾燥させて塗膜を形成した。 In the ratio shown in Table 1, cement and water of a cationic polymer (a cationic acrylic polymer containing 20 to 50% of a non-volatile component and having a viscosity of more than 0 and a viscosity of 700 MPa · s or less and a pH of 3.5 to 7.0) To 100 parts by mass of cement paste, 5 parts by mass of white pigment, 0.01 part by mass of green pigment, and 5 parts by mass of water are added to the cement paste mixed with the admixture, and further mixed to obtain a coating liquid. Prepared. The prepared coating liquid is applied to a 150 mm × 70 mm × 2 mm stainless steel plate (SUS104) so as to have a thickness of 1.5 to 2.5 g / m 2 (film thickness 1 to 2 mm), and dried at room temperature overnight. A coating film was formed.
塗膜を形成したサンプルについて、密着性および意匠性（外観評価）を評価するとともに、サンプルを温泉液（６０℃）に７日浸漬させた後の防錆性（外観評価）について評価した。結果を表１に示す。なお、密着性（碁盤目テープ密着試験）は、塗膜に３ｍｍ角の縦、横各５の２５マスの切り込みを入れた後、セロハンテープを貼り、剥した後の塗膜の状態（○：剥れなし、△：一部に剥れ、×：１割以上の剥れ）で評価した。 The adhesion and design (appearance evaluation) of the sample on which the coating film was formed were evaluated, and the rust prevention property (appearance evaluation) after the sample was immersed in a hot spring solution (60 ° C.) for 7 days was evaluated. The results are shown in Table 1. The adhesion (checkered tape adhesion test) is the state of the coating film after making 25 squares of 3 mm square in length and width 5 each, and then applying cellophane tape and peeling it off (○: No peeling, Δ: partial peeling, ×: peeling of 10% or more) was evaluated.
塗膜を形成しないステンレス板は温泉液浸漬７時間で錆が確認された。塗膜中のセメントの割合が多くなると、密着性が低下し、セメントの割合が少なければ、意匠性が低下する。また、防錆試験では、セメント／混和液の割合が７０／３０以上で塗膜が水分吸収により膨れてしまい、結果を得ることができず、セメント／混和液の割合が５０／５０〜６０／４０で小さな膨れが見られたが防錆効果が認められた。 Rust was confirmed on the stainless steel plate that did not form a coating film after 7 hours of immersion in the hot spring solution. If the proportion of cement in the coating film is large, the adhesiveness is lowered, and if the proportion of cement is low, the designability is lowered. Further, in the rust prevention test, when the ratio of cement / admixture was 70/30 or more, the coating film swelled due to water absorption, and no result could be obtained, and the ratio of cement / admixture was 50/50 to 60 /. A small swelling was observed at 40, but a rust preventive effect was observed.
Claims (5)
セメント１００質量部に対し、カチオン系ポリマーを３０〜２００質量部の割合で含む塗膜が形成されていることを特徴とする石材調防錆ステンレス。 On a base material made of stainless steel
A stone-like rust-preventive stainless steel characterized in that a coating film containing a cationic polymer in a ratio of 30 to 200 parts by mass is formed with respect to 100 parts by mass of cement.
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