JPH11222563A - Vibrationproof powder coating material - Google Patents
Vibrationproof powder coating materialInfo
- Publication number
- JPH11222563A JPH11222563A JP10041096A JP4109698A JPH11222563A JP H11222563 A JPH11222563 A JP H11222563A JP 10041096 A JP10041096 A JP 10041096A JP 4109698 A JP4109698 A JP 4109698A JP H11222563 A JPH11222563 A JP H11222563A
- Authority
- JP
- Japan
- Prior art keywords
- particles
- polyurethane resin
- resin particles
- standard deviation
- average particle
- 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.)
- Withdrawn
Links
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Paints Or Removers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は被塗装体に防振性を付与
するために用いられる防振性粉体塗料に係り、特に、薄
い膜厚でも充分な防振性を発揮するとともに、塗膜の外
観および耐衝撃性に優れた防振性粉体塗料に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-vibration powder coating used for imparting anti-vibration properties to an object to be coated. The present invention relates to a vibration-proof powder coating having excellent film appearance and impact resistance.
【０００２】[0002]
【従来の技術】従来、自動車、鉄道車両、エレベータ、
プラントの配管などの振動する部材や振動を忌避する部
材には、防振の目的で塗装が施されることがある。その
ような目的に使用される防振性塗料としては、アスファ
ルト系、エポキシ系、フタル酸系、エマルジョン系、塩
ビ系などの塗料が知られている。たとえば、特開平３−
１７７４６５号には、エポキシ樹脂と塩化ビニル樹脂と
を複合させた防振性粉体塗料が提案されている。2. Description of the Related Art Conventionally, automobiles, railway vehicles, elevators,
Vibrating members such as plant piping and members that repel vibrations may be coated for the purpose of vibration isolation. As anti-vibration paints used for such purposes, asphalt-based, epoxy-based, phthalic acid-based, emulsion-based, and PVC-based paints are known. For example, Japanese Unexamined Patent Publication
No. 177465 proposes an anti-vibration powder coating in which an epoxy resin and a vinyl chloride resin are combined.
【０００３】[0003]
【発明が解決しようとする課題】ところで、上記提案に
係る防振性塗料では、塗膜の厚さを０．５ｍｍ以上にし
ないと防振効果が得られず、そのために、塗装コストが
割高になるという問題がある。また、エポキシ系の防振
性塗料では、塗膜の硬度が高いため衝撃を受けたときに
クラックが生じ易いという欠点がある。さらに、従来の
防振性塗料では、防振を主眼としているため、塗膜の外
観に考慮が払われていないものが殆どであり、商品価値
が損なわれるという欠点もある。よって、本発明は上記
実情に鑑みてなされたもので、薄い膜厚でも充分な防振
性を発揮するとともに、塗膜の外観および耐衝撃性に優
れた防振性粉体塗料を提供することを目的としている。However, in the anti-vibration paint according to the above-mentioned proposal, the anti-vibration effect cannot be obtained unless the thickness of the coating film is 0.5 mm or more, so that the coating cost is relatively high. Problem. In addition, epoxy-based anti-vibration paints have a disadvantage that cracks are apt to occur when subjected to an impact due to high hardness of the coating film. Further, most of conventional anti-vibration paints do not pay attention to the appearance of the coating film because the main purpose is anti-vibration, and there is a disadvantage that commercial value is impaired. Therefore, the present invention has been made in view of the above circumstances, and provides a vibration-proof powder coating material which exhibits sufficient vibration-proof properties even with a small film thickness and has excellent appearance and impact resistance of a coating film. It is an object.
【０００４】[0004]
【課題を解決するための手段】本発明者は、種々の防振
性粉体塗料の材料について検討を重ねた結果、熱硬化性
を有するポリエステル樹脂と、熱可塑性を有する比較的
軟らかいポリウレタン樹脂とを組み合わせることによ
り、たとえば１５０μｍ程度の薄い塗膜でも高い防振性
が得られることを見い出した。本発明は、このような知
見に基づいてなされたもので、ポリエステル樹脂を主体
とする粉体粒子とポリウレタン樹脂粒子とを混合し、ポ
リエステル粉体粒子とポリウレタン樹脂粒子との混合比
を重量比で前者：後者が１：１〜７：３とし、ポリエス
テル粉体粒子の平均粒径を１０〜２０μｍとし、ポリウ
レタン樹脂粒子の平均粒子径を２０〜５０μｍとし、ポ
リエステル粉体粒子の粒径の標準偏差を１．４〜４．１
とし、ポリウレタン樹脂粒子の粒径の標準偏差を６〜１
２としたことを特徴としている。The inventor of the present invention has conducted various studies on various materials for a vibration-proof powder coating material. As a result, the present inventors have found that a polyester resin having thermosetting properties and a relatively soft polyurethane resin having thermoplastic properties have been developed. It has been found that, by combining these, a high anti-vibration property can be obtained even with a thin coating film of, for example, about 150 μm. The present invention has been made on the basis of such knowledge, mixing powder particles mainly composed of polyester resin and polyurethane resin particles, and mixing ratio of polyester powder particles and polyurethane resin particles by weight ratio. The former: the latter is 1: 1 to 7: 3, the average particle size of the polyester powder particles is 10 to 20 μm, the average particle size of the polyurethane resin particles is 20 to 50 μm, and the standard deviation of the particle size of the polyester powder particles. From 1.4 to 4.1
And the standard deviation of the particle size of the polyurethane resin particles is 6 to 1
It is characterized by being 2.
【０００５】[0005]
【発明の実施の形態】Ａ．数値範囲の限定理由 ポリエステル粉体粒子とポリウレタン樹脂粒子との混合
比は、重量比で前者：後者が１：１〜７：３とした。ポ
リウレタン樹脂粒子の混合比１に対して、ポリエステル
粉体粒子の混合比が１よりも小さい場合には、塗膜の焼
付け時間が長くなるため塗装性が悪化する。一方、ポリ
ウレタン樹脂粒子の混合比３に対して、ポリエステル粉
体粒子の混合比が７よりも大きい場合には、防振性に寄
与するポリウレタン樹脂粒子の割合が少ないために防振
効果が低下する。DETAILED DESCRIPTION OF THE INVENTION A. Reasons for Limiting the Numerical Range The mixing ratio of the polyester powder particles to the polyurethane resin particles was 1: 1 to 7: 3 for the former and the latter by weight. If the mixing ratio of the polyester powder particles is smaller than 1 with respect to the mixing ratio of the polyurethane resin particles, the baking time of the coating film is prolonged, thereby deteriorating the coatability. On the other hand, when the mixing ratio of the polyester powder particles is greater than 7 with respect to the mixing ratio of the polyurethane resin particles of 3, the ratio of the polyurethane resin particles contributing to the vibration damping property is small, and the vibration damping effect is reduced. .
【０００６】ポリエステル粉体粒子の平均粒径は、１０
〜２０μｍとした。平均粒子径が１０μｍ未満である場
合には、粉体塗料の流動性が低下するために取り扱いに
不便を来すとともに貯蔵安定性が低下する。一方、平均
粒径が２０μｍを上回ると、塗膜表面の滑らかな光沢が
得られなくなる。また、ポリウレタン樹脂粒子の平均粒
径は、２０〜５０μｍであることが望ましい。平均粒子
径が２０μｍ未満である場合には、必要な防振性が得ら
れ難くなる。一方、平均粒径が５０μｍを上回ると、塗
膜表面の滑らかな光沢が得られなくなる。The average particle size of the polyester powder particles is 10
２０20 μm. When the average particle size is less than 10 μm, the fluidity of the powder coating material is reduced, which causes inconvenience in handling and storage stability. On the other hand, when the average particle size exceeds 20 μm, smooth gloss of the coating film surface cannot be obtained. The average particle size of the polyurethane resin particles is desirably 20 to 50 μm. When the average particle size is less than 20 μm, it becomes difficult to obtain necessary vibration damping properties. On the other hand, when the average particle size exceeds 50 μm, smooth gloss of the coating film surface cannot be obtained.
【０００７】次に、本発明者の検討によれば、粉体塗料
の粒子の粒度分布も防振性および塗膜表面の光沢に大き
く影響することが明らかにされており、粒子の標準偏差
が及ぼす影響について定量的に解析されている。まず、
ポリエステル粉体粒子の粒径の標準偏差は１．４〜４．
１とした。粒径の標準偏差が４．１を上回ると、分布の
幅が広すぎて塗膜表面に不規則な凹凸が生じ、滑らかな
光沢が得られなくなる。一方、粒径の標準偏差を１．４
未満にするためには多数の分級工程が必要となるため、
生産性が悪化する。Next, according to the study of the present inventors, it has been clarified that the particle size distribution of the particles of the powder coating greatly affects the vibration damping property and the gloss of the coating film surface. The effects are quantitatively analyzed. First,
The standard deviation of the particle size of the polyester powder particles is 1.4 to 4.
It was set to 1. When the standard deviation of the particle size exceeds 4.1, the width of the distribution is too wide, and irregularities are generated on the surface of the coating film, so that a smooth gloss cannot be obtained. On the other hand, the standard deviation of the particle size is 1.4.
Since a large number of classification steps are required to reduce the
Productivity deteriorates.
【０００８】また、ポリウレタン樹脂粒子の粒径の標準
偏差は６〜１２とした。粒径の標準偏差が１２を上回る
と、上記と同様に分布の幅が広すぎて塗膜表面に不規則
な凹凸が生じ、滑らかな光沢が得られなくなる。一方、
粒径の標準偏差が６を下回ると防振性が低下する。その
理由は定かではないが、粒径にある程度のばらつきがあ
った方が被塗物に電着した際の密度が高くなって防振性
能が高くなるものと推測される。ただし、これはあくま
でも推定であって、かかる作用の有無により本発明が限
定されないことは言うまでもない。The standard deviation of the particle size of the polyurethane resin particles is 6 to 12. If the standard deviation of the particle size is more than 12, the distribution width is too wide similarly to the above, irregular irregularities are generated on the coating film surface, and smooth gloss cannot be obtained. on the other hand,
When the standard deviation of the particle size is less than 6, the vibration-proofing properties are reduced. Although the reason is not clear, it is presumed that a certain degree of variation in the particle size increases the density when electrodeposited on the object to be coated and increases the vibration isolation performance. However, this is merely an estimation, and it goes without saying that the present invention is not limited by the presence or absence of such an action.
【０００９】本発明の防振性粉体塗料には、上記以外の
樹脂粒子を混合することができる。ただし、防振性と塗
膜表面の光沢を維持するためには、その混合量は重量比
で２０％以下とするのが望ましい。混合可能な樹脂粒子
としては、ポリエチレン、エポキシ、ポリプロピレン、
ポリアミド、ポリアクリレート、ポリ塩化ビニル、ポリ
酢酸ビニル等の樹脂ビーズを混合することにより、塗膜
の強度を高めることができる。また、パラフィンワック
ス、ポリエチレンワックス、ポリプロピレンワックス等
のポリオレフィンワックスを混合することにより、塗膜
の表面摩擦抵抗を低減することができる。[0009] Resin particles other than those described above can be mixed in the anti-vibration powder coating of the present invention. However, in order to maintain the anti-vibration property and the gloss of the coating film surface, the mixing amount is desirably 20% or less by weight. Mixable resin particles include polyethylene, epoxy, polypropylene,
By mixing resin beads such as polyamide, polyacrylate, polyvinyl chloride, and polyvinyl acetate, the strength of the coating film can be increased. Further, by mixing a polyolefin wax such as a paraffin wax, a polyethylene wax and a polypropylene wax, the surface friction resistance of the coating film can be reduced.
【００１０】Ｂ．ポリエステル粉体粒子 ポリエステルは公知の方法により製造されたものでよ
く、たとえば水酸基端末ポリエステル樹脂を用いること
ができる。ポリエステルの酸成分としては、二塩基酸お
よび三塩基以上の多塩基酸を用いることができる。具体
的には、テレフタル酸、イソフタル酸、フタル酸、メチ
ルテレフタル酸、トリメリット酸、ピロメリット酸およ
びそれらの無水物；アジピン酸、セバシン酸、コハク
酸、マレイン酸、フマル酸、テトラヒドロフタル酸、メ
チル−テトラヒドロフタル酸、ヘキサヒドロフタル酸、
メチル−ヘキサヒドロフタル酸およびそれらの無水物な
どを用いることができる。また、アルコール成分として
は、エチレングリコール、プロピレングリコール、１・
３−ブタンジオール、１・４ブタンジオール、１・６ヘ
キサンジオール、ネオペンチルグリコール、ビスヒドロ
キシエチルフタレート、水添ビスフェノールＡ、水添−
ビスフェノールＡのエチレンオキサイド付加物もしくは
プロピレンオキサイド付加物、トリメチロールエタン、
トリメチロールプロパン、グリセリン、ペンタエリスリ
トール、２・２・４−トリメチルペンタン−１・３−ジ
オール、モノエポキシ化合物などを用いることができ
る。 B. The polyester powder particle polyester may be produced by a known method, and for example, a hydroxyl-terminated polyester resin can be used. As the acid component of the polyester, dibasic acids and tribasic or higher polybasic acids can be used. Specifically, terephthalic acid, isophthalic acid, phthalic acid, methyl terephthalic acid, trimellitic acid, pyromellitic acid and their anhydrides; adipic acid, sebacic acid, succinic acid, maleic acid, fumaric acid, tetrahydrophthalic acid, Methyl-tetrahydrophthalic acid, hexahydrophthalic acid,
Methyl-hexahydrophthalic acid and their anhydrides can be used. Further, as the alcohol component, ethylene glycol, propylene glycol, 1.
3-butanediol, 1.4 butanediol, 1.6 hexanediol, neopentyl glycol, bishydroxyethyl phthalate, hydrogenated bisphenol A, hydrogenated
Bisphenol A ethylene oxide adduct or propylene oxide adduct, trimethylolethane,
Trimethylolpropane, glycerin, pentaerythritol, 2,2,4-trimethylpentane-1,3-diol, monoepoxy compounds and the like can be used.
【００１１】ポリエステルは、水酸基価が２０〜２００
ｍｇＫＯＨ／ｇ、軟化点が６０〜１５０℃、数平均分子
量が１０００〜１００００程度のものが好ましく、分岐
構造のものでも線状構造のものでも良い。また、ポリエ
ステル粉体粒子には、ポリイソシアネート、アミン、ポ
リアミド、酸無水物、ポリスルフィド、酸フッ化ホウ素
酸、酸ジヒドラジド、イミダゾール等の硬化剤、硫酸バ
リウム、炭酸カルシウム、酸化アルミニウム、ケイ酸カ
ルシウム等の充填剤、アクリルオリゴマー、シリコーン
等の流展剤、酸化チタン、酸化クロム、酸化鉄、カーボ
ンブラック等の着色剤、発泡防止剤等を含有させること
ができる。そして、上記のようなポリエステル樹脂およ
び硬化剤等を乾式混合し、熱溶融混練した後に粉砕、分
級することにより、本発明のポリエステル粉体粒子を得
ることができる。The polyester has a hydroxyl value of 20 to 200.
mg KOH / g, a softening point of 60 to 150 ° C. and a number average molecular weight of about 1,000 to 10,000 are preferred, and a branched or linear structure may be used. In addition, polyester powder particles include hardening agents such as polyisocyanate, amine, polyamide, acid anhydride, polysulfide, oxyboronic acid, acid dihydrazide, imidazole, barium sulfate, calcium carbonate, aluminum oxide, calcium silicate, etc. Fillers, acrylic oligomers, spreading agents such as silicones, coloring agents such as titanium oxide, chromium oxide, iron oxide, and carbon black, and antifoaming agents. Then, the polyester powder particles of the present invention can be obtained by dry-mixing the above-mentioned polyester resin, a curing agent and the like, hot-melting and kneading, and then pulverizing and classifying.
【００１２】Ｃ．ポリウレタン樹脂粒子 ポリウレタンは公知の方法で製造されたポリウレタン樹
脂ビーズを用いることができる。特に、耐候性、耐溶剤
性、耐水性に優れた脂肪族系ポリウレタン樹脂粒子が好
ましい。樹脂ビーズは、無色透明でも良く、顔料を含有
させて着色したものを用いることもできる。 C. Polyurethane resin particles Polyurethane resin beads manufactured by a known method can be used as polyurethane. In particular, aliphatic polyurethane resin particles excellent in weather resistance, solvent resistance, and water resistance are preferable. The resin beads may be colorless and transparent, or may be colored by incorporating a pigment.
【００１３】[0013]
【実施例】本発明を実施例によってさらに詳細に説明す
る。なお、以下の説明において「部」は「重量部」を意
味するものとする。 ＜実施例１＞下記の配合比からなる原料をスーパーミキ
サーで混合し、加圧ニーダーで１３０℃で熱溶融混練
後、ジェットミルで粉砕し、その後乾式気流分級機でコ
ールターカウンターＴＡ−ＩＩ型を用いて測定した場
合、平均粒子径が１５μｍ、標準偏差が２．７になるよ
う分級しポリエステル粉体粒子を得た。The present invention will be described in more detail by way of examples. In the following description, “parts” means “parts by weight”. <Example 1> Raw materials having the following compounding ratios were mixed by a super mixer, hot-melt kneaded at 130 ° C by a pressure kneader, pulverized by a jet mill, and then dried with a Coulter Counter TA-II type by a dry air classifier. When the measurement was carried out, the particles were classified so that the average particle diameter was 15 μm and the standard deviation was 2.7, to obtain polyester powder particles.
【００１４】 ・ポリエステル粉体粒子 水酸基末端ポリエステル樹脂 ５０．９重量％ （日本ユピカ社製 商品名：ＧＶ−１８０） ブロックイソシアネート ８．３重量％ （マックウオーター社製 商品名：２４−２４００） 硬化促進剤 ０．２重量％ （三共有機合成社製 商品名：ｓｔａｎｎＯＭＦ） 流展剤 ０．２重量％ （ＢＡＳＦ社製 商品名：アクロナールＬＲ−８８２０） 発泡防止剤 ０．３重量％ （みどり化学社製 商品名：ベンゾイン） 酸化チタン ３７．２重量％ （石原産業社製 商品名：タイペークＣＲ−９０） カーボンブラック ２．９重量％ （キャブロック社製 商品名：ＢＰ−４３０）Polyester powder particles 50.9% by weight of hydroxyl group-terminated polyester resin (Product name: GV-180, manufactured by Nippon Yupika) 8.3% by weight of blocked isocyanate (Product name: 24-2400, manufactured by Mac Water) 0.2% by weight (manufactured by Sankyoki Gosei Co., Ltd .: stannOMF) Dispersant 0.2% by weight (manufactured by BASF: Acronal LR-8820) Foaming inhibitor 0.3% by weight (Midori Chemical Co., Ltd.) Product name: Benzoin) Titanium oxide 37.2% by weight (product name: Ishihara Sangyo Co., Ltd .: product name: TAIPEK CR-90) Carbon black 2.9% by weight (product name: Cabrock Co., Ltd .: BP-430)
【００１５】上記ポリエステル粉体粒子と下記ポリウレ
タン樹脂粒子とを重量比 ポリエステル粉体粒子：ポリウレタン樹脂粒子＝１：１ で混合して本発明の粉体塗料を得た。 ・ポリウレタン樹脂粒子 日本ポリウレタン工業社製の脂肪族系ポリウレタン樹脂
粒子、パールセン Ｕ２０２Ａを平均粒子径が３５μｍ
及び標準偏差が９になるように分級して使用した。The above-mentioned polyester powder particles and the following polyurethane resin particles were mixed in a weight ratio of polyester powder particles: polyurethane resin particles = 1: 1 to obtain a powder coating of the present invention.・ Polyurethane resin particles An aliphatic polyurethane resin particle manufactured by Nippon Polyurethane Industry Co., Ltd., Parsen U202A, having an average particle diameter of 35 μm
And used so that the standard deviation was 9.
【００１６】＜実施例２＞実施例１のポリエステル粉体
粒子の原料をそのまま用い、平均粒子径が１５μｍ、標
準偏差が２．７になるよう分級しポリエステル粉体粒子
を得た。実施例１のポリウレタン樹脂粒子の原料をその
まま用い、平均粒子径が３５μｍ、標準偏差が９になる
よう分級しポリウレタン樹脂粒子を得た。上記ポリエス
テル粉体粒子とポリウレタン樹脂粒子とを重量比 ポリエステル粉体粒子：ポリウレタン樹脂粒子＝７：３ で混合して本発明の粉体塗料を得た。Example 2 Using the raw material of the polyester powder particles of Example 1 as it was, classification was performed so that the average particle diameter was 15 μm and the standard deviation was 2.7, to obtain polyester powder particles. The raw material of the polyurethane resin particles of Example 1 was used as it was, and classified so that the average particle diameter was 35 μm and the standard deviation was 9, to obtain polyurethane resin particles. The above-mentioned polyester powder particles and polyurethane resin particles were mixed in a weight ratio of polyester powder particles: polyurethane resin particles = 7: 3 to obtain a powder coating of the present invention.
【００１７】＜実施例３＞実施例１のポリエステル粉体
粒子の原料をそのまま用い、平均粒子径が２０μｍ、標
準偏差が２．７になるよう分級しポリエステル粉体粒子
を得た。実施例１のポリウレタン樹脂粒子の原料をその
まま用い、平均粒子径が３５μｍ、標準偏差が９になる
よう分級しポリウレタン樹脂粒子を得た。上記ポリエス
テル粉体粒子とポリウレタン樹脂粒子とを重量比 ポリエステル粉体粒子：ポリウレタン樹脂粒子＝１：１ で混合して本発明の粉体塗料を得た。Example 3 Using the raw material of the polyester powder particles of Example 1 as it was, classification was performed so that the average particle diameter was 20 μm and the standard deviation was 2.7 to obtain polyester powder particles. The raw material of the polyurethane resin particles of Example 1 was used as it was, and classified so that the average particle diameter was 35 μm and the standard deviation was 9, to obtain polyurethane resin particles. The polyester powder particles and the polyurethane resin particles were mixed at a weight ratio of polyester powder particles: polyurethane resin particles = 1: 1 to obtain a powder coating of the present invention.
【００１８】＜実施例４＞実施例１のポリエステル粉体
粒子の原料をそのまま用い、平均粒子径が１５μｍ、標
準偏差が２．７になるよう分級しポリエステル粉体粒子
を得た。実施例１のポリウレタン樹脂粒子の原料をその
まま用い、平均粒子径が２０μｍ、標準偏差が９になる
よう分級しポリウレタン樹脂粒子を得た。上記ポリエス
テル粉体粒子とポリウレタン樹脂粒子とを重量比 ポリエステル粉体粒子：ポリウレタン樹脂粒子＝１：１ で混合して本発明の粉体塗料を得た。Example 4 Using the raw material of the polyester powder particles of Example 1 as it was, classification was performed so that the average particle diameter was 15 μm and the standard deviation was 2.7 to obtain polyester powder particles. The raw material of the polyurethane resin particles of Example 1 was used as it was, and classified so that the average particle diameter was 20 μm and the standard deviation was 9, to obtain polyurethane resin particles. The polyester powder particles and the polyurethane resin particles were mixed at a weight ratio of polyester powder particles: polyurethane resin particles = 1: 1 to obtain a powder coating of the present invention.
【００１９】＜比較例１＞（ポリエステルの平均粒子
径：小） 実施例１のポリエステル粉体粒子の原料をそのまま用
い、平均粒子径が８μｍ、標準偏差が２．７になるよう
分級しポリエステル粉体粒子を得た。実施例１のポリウ
レタン樹脂粒子の原料をそのまま用い、平均粒子径が３
５μｍ、標準偏差が９になるよう分級しポリウレタン樹
脂粒子を得た。上記ポリエステル粉体粒子とポリウレタ
ン樹脂粒子とを重量比 ポリエステル粉体粒子：ポリウレタン樹脂粒子＝１：１ で混合して比較用の粉体塗料を得た。<Comparative Example 1> (Average particle diameter of polyester: small) The raw material of the polyester powder particles of Example 1 was used as it was, and classified to obtain an average particle diameter of 8 μm and a standard deviation of 2.7. Body particles were obtained. The raw material of the polyurethane resin particles of Example 1 was used as it was, and the average particle diameter was 3
Classification was performed so that the standard deviation was 5 μm and the standard deviation was 9, thereby obtaining polyurethane resin particles. The above-mentioned polyester powder particles and polyurethane resin particles were mixed at a weight ratio of polyester powder particles: polyurethane resin particles = 1: 1 to obtain a powder coating for comparison.
【００２０】＜比較例２＞（ポリエステルの平均粒子
径：大） 実施例１のポリエステル粉体粒子の原料をそのまま用
い、平均粒子径が２３μｍ、標準偏差が２．７になるよ
う分級しポリエステル粉体粒子を得た。実施例１のポリ
ウレタン樹脂粒子の原料をそのまま用い、平均粒子径が
３５μｍ、標準偏差が９になるよう分級しポリウレタン
樹脂粒子を得た。上記ポリエステル粉体粒子とポリウレ
タン樹脂粒子とを重量比 ポリエステル粉体粒子：ポリウレタン樹脂粒子＝１：１ で混合して比較用の粉体塗料を得た。Comparative Example 2 (Average Particle Diameter of Polyester: Large) The raw material of the polyester powder particles of Example 1 was used as it was, and classified to have an average particle diameter of 23 μm and a standard deviation of 2.7. Body particles were obtained. The raw material of the polyurethane resin particles of Example 1 was used as it was, and classified so that the average particle diameter was 35 μm and the standard deviation was 9, to obtain polyurethane resin particles. The above-mentioned polyester powder particles and polyurethane resin particles were mixed at a weight ratio of polyester powder particles: polyurethane resin particles = 1: 1 to obtain a powder coating for comparison.
【００２１】＜比較例３＞（ポリウレタンの平均粒子
径：小） 実施例１のポリエステル粉体粒子の原料をそのまま用
い、平均粒子径が１５μｍ、標準偏差が２．７になるよ
う分級しポリエステル粉体粒子を得た。実施例１のポリ
ウレタン樹脂粒子の原料をそのまま用い、平均粒子径が
１７μｍ、標準偏差が９になるよう分級しポリウレタン
樹脂粒子を得た。上記ポリエステル粉体粒子とポリウレ
タン樹脂粒子とを重量比 ポリエステル粉体粒子：ポリウレタン樹脂粒子＝１：１ で混合して比較用の粉体塗料を得た。Comparative Example 3 (Average Particle Diameter of Polyurethane: Small) The raw material of the polyester powder particles of Example 1 was used as it was, and classified to have an average particle diameter of 15 μm and a standard deviation of 2.7. Body particles were obtained. The raw materials of the polyurethane resin particles of Example 1 were used as they were, and classified so that the average particle diameter was 17 μm and the standard deviation was 9, to obtain polyurethane resin particles. The above-mentioned polyester powder particles and polyurethane resin particles were mixed at a weight ratio of polyester powder particles: polyurethane resin particles = 1: 1 to obtain a powder coating for comparison.
【００２２】＜比較例４＞（ポリウレタンの平均粒子
径：大） 実施例１のポリエステル粉体粒子の原料をそのまま用
い、平均粒子径が１５μｍ、標準偏差が２．７になるよ
う分級しポリエステル粉体粒子を得た。実施例１のポリ
ウレタン樹脂粒子の原料をそのまま用い、平均粒子径が
５５μｍ、標準偏差が９になるよう分級しポリウレタン
樹脂粒子を得た。上記ポリエステル粉体粒子とポリウレ
タン樹脂粒子とを重量比 ポリエステル粉体粒子：ポリウレタン樹脂粒子＝１：１ で混合して比較用の粉体塗料を得た。<Comparative Example 4> (Average particle diameter of polyurethane: large) The raw material of the polyester powder particles of Example 1 was used as it was, and classified to have an average particle diameter of 15 μm and a standard deviation of 2.7. Body particles were obtained. The raw material of the polyurethane resin particles of Example 1 was used as it was, and classified so that the average particle diameter was 55 μm and the standard deviation was 9, to obtain polyurethane resin particles. The above-mentioned polyester powder particles and polyurethane resin particles were mixed at a weight ratio of polyester powder particles: polyurethane resin particles = 1: 1 to obtain a powder coating for comparison.
【００２３】＜比較例５＞（ポリエステルの標準偏差：
大） 実施例１のポリエステル粉体粒子の原料をそのまま用
い、平均粒子径が１５μｍ、標準偏差が４．３になるよ
う分級しポリエステル粉体粒子を得た。実施例１のポリ
ウレタン樹脂粒子の原料をそのまま用い、平均粒子径が
３５μｍ、標準偏差が９になるよう分級しポリウレタン
樹脂粒子を得た。上記ポリエステル粉体粒子とポリウレ
タン樹脂粒子とを重量比 ポリエステル粉体粒子：ポリウレタン樹脂粒子＝１：１ で混合して比較用の粉体塗料を得た。Comparative Example 5 (Standard deviation of polyester:
Large) Using the raw material of the polyester powder particles of Example 1 as it was, classification was performed so that the average particle diameter was 15 μm and the standard deviation was 4.3, to obtain polyester powder particles. The raw material of the polyurethane resin particles of Example 1 was used as it was, and classified so that the average particle diameter was 35 μm and the standard deviation was 9, to obtain polyurethane resin particles. The above-mentioned polyester powder particles and polyurethane resin particles were mixed at a weight ratio of polyester powder particles: polyurethane resin particles = 1: 1 to obtain a powder coating for comparison.
【００２４】＜比較例６＞（ポリウレタンの標準偏差：
小） 実施例１のポリエステル粉体粒子の原料をそのまま用
い、平均粒子径が１５μｍ、標準偏差が２．７になるよ
う分級しポリエステル粉体粒子を得た。実施例１のポリ
ウレタン樹脂粒子の原料をそのまま用い、平均粒子径が
３５μｍ、標準偏差が５になるよう分級しポリウレタン
樹脂粒子を得た。上記ポリエステル粉体粒子とポリウレ
タン樹脂粒子とを重量比 ポリエステル粉体粒子：ポリウレタン樹脂粒子＝１：１ で混合して比較用の粉体塗料を得た。Comparative Example 6 (Standard deviation of polyurethane:
Small) The raw material of the polyester powder particles of Example 1 was used as it was, and classified so that the average particle diameter was 15 μm and the standard deviation was 2.7, to obtain polyester powder particles. The raw material of the polyurethane resin particles of Example 1 was used as it was, and classified so that the average particle diameter was 35 μm and the standard deviation was 5, to obtain polyurethane resin particles. The above-mentioned polyester powder particles and polyurethane resin particles were mixed at a weight ratio of polyester powder particles: polyurethane resin particles = 1: 1 to obtain a powder coating for comparison.
【００２５】＜比較例７＞（ポリウレタンの標準偏差：
大） 実施例１のポリエステル粉体粒子の原料をそのまま用
い、平均粒子径が１５μｍ、標準偏差が２．７になるよ
う分級しポリエステル粉体粒子を得た。実施例１のポリ
ウレタン樹脂粒子の原料をそのまま用い、平均粒子径が
３５μｍ、標準偏差が１５になるよう分級しポリウレタ
ン樹脂粒子を得た。上記ポリエステル粉体粒子とポリウ
レタン樹脂粒子とを重量比 ポリエステル粉体粒子：ポリウレタン樹脂粒子＝１：１ で混合して比較用の粉体塗料を得た。Comparative Example 7 (Standard deviation of polyurethane:
Large) The raw material of the polyester powder particles of Example 1 was used as it was, and classified so that the average particle diameter was 15 μm and the standard deviation was 2.7, to obtain polyester powder particles. The raw materials of the polyurethane resin particles of Example 1 were used as they were, and classified so that the average particle diameter was 35 μm and the standard deviation was 15, to obtain polyurethane resin particles. The above-mentioned polyester powder particles and polyurethane resin particles were mixed at a weight ratio of polyester powder particles: polyurethane resin particles = 1: 1 to obtain a powder coating for comparison.
【００２６】＜比較例８＞（混合比：ポリエステル少な
い） 実施例１のポリエステル粉体粒子の原料をそのまま用
い、平均粒子径が１５μｍ、標準偏差が２．７になるよ
う分級しポリエステル粉体粒子を得た。実施例１のポリ
ウレタン樹脂粒子の原料をそのまま用い、平均粒子径が
３５μｍ、標準偏差が９になるよう分級しポリウレタン
樹脂粒子を得た。上記ポリエステル粉体粒子とポリウレ
タン樹脂粒子とを重量比 ポリエステル粉体粒子：ポリウレタン樹脂粒子＝４：６ で混合して比較用の粉体塗料を得た。<Comparative Example 8> (Mixing ratio: less polyester) Using the raw material of the polyester powder particles of Example 1 as it is, the polyester powder particles were classified so that the average particle diameter was 15 μm and the standard deviation was 2.7. I got The raw material of the polyurethane resin particles of Example 1 was used as it was, and classified so that the average particle diameter was 35 μm and the standard deviation was 9, to obtain polyurethane resin particles. The above-mentioned polyester powder particles and polyurethane resin particles were mixed in a weight ratio of polyester powder particles: polyurethane resin particles = 4: 6 to obtain a powder coating for comparison.
【００２７】＜比較例９＞（混合比 ポリエステル多
い） 実施例１のポリエステル粉体粒子の原料をそのまま用
い、平均粒子径が１５μｍ、標準偏差が２．７になるよ
う分級しポリエステル粉体粒子を得た。実施例１のポリ
ウレタン樹脂粒子の原料をそのまま用い、平均粒子径が
３５μｍ、標準偏差が９になるよう分級しポリウレタン
樹脂粒子を得た。上記ポリエステル粉体粒子とポリウレ
タン樹脂粒子とを重量比 ポリエステル粉体粒子：ポリウレタン樹脂粒子＝８：２ で混合して比較用の粉体塗料を得た。<Comparative Example 9> (Mixing ratio: Many polyesters) The raw material of the polyester powder particles of Example 1 was used as it was, and classified so that the average particle diameter was 15 μm and the standard deviation was 2.7. Obtained. The raw material of the polyurethane resin particles of Example 1 was used as it was, and classified so that the average particle diameter was 35 μm and the standard deviation was 9, to obtain polyurethane resin particles. The above polyester powder particles and polyurethane resin particles were mixed at a weight ratio of polyester powder particles: polyurethane resin particles = 8: 2 to obtain a powder coating for comparison.
【００２８】＜評価＞前記で得た各粉体塗料をマイナス
のイオンで帯電させるコロナ方式のスプレーガンに適用
し、ブライト仕上げされるとともにりん酸亜鉛で前処理
された０．８mm×１５０mm×７０mmの処理鋼板に吹き付
けた後、２００℃で２０分間焼き付けを行い、厚さ約１
５０μｍの塗膜を形成した。次いで、各試料に対して下
記項目の試験を行い、その結果を表１に示した。<Evaluation> Each of the powder coatings obtained above was applied to a corona spray gun charged with negative ions, and was subjected to a bright finish and a pretreatment with zinc phosphate of 0.8 mm × 150 mm × 70 mm. After baking on the treated steel sheet, baking is performed at 200 ° C. for 20 minutes, and the thickness is about 1
A 50 μm coating was formed. Next, the following items were tested for each sample, and the results are shown in Table 1.
【００２９】（１）塗膜外観 目視観察により塗膜表面に脱泡跡がなく溶融状態が良い
場合を良好とし、明瞭に脱泡跡が認められる場合を不良
とした。(1) Appearance of the coating film The case where the defoaming trace was not observed on the surface of the coating film by visual observation and the melting state was good was regarded as good, and the case where the defoaming trace was clearly observed was regarded as poor.
【００３０】（２）付着性 ＪＩＳ−Ｋ−５４００（８．５．２）碁盤目法に準拠し
て塗膜の付着強度を測定した。なお、この評価では、９
０／１００以上が実用可能範囲である。(2) Adhesion The adhesion strength of the coating film was measured according to the JIS-K-5400 (8.5.2) grid method. In this evaluation, 9
0/100 or more is a practically usable range.
【００３１】（３）耐衝撃性 ＪＩＳ−Ｋ−５４００（８．３．２）デュポン式に準拠
して衝撃値を測定した。なお、この評価では、５０mm以
上が実用可能範囲である。(3) Impact Resistance Impact values were measured according to JIS-K-5400 (8.3.2) Dupont method. In this evaluation, 50 mm or more is a practically usable range.
【００３２】（４）防振性 共振法により伝達関数の共振振動時の応答からそれぞれ
４つの共振周波数（ｆ0）Ｈｚ及び半価幅（Δｆ）Ｈｚ
を読み取りとり、次の式によって損失係数ηを求めた。
なお、防振性は損失係数ηが大きい程優れている。(4) Vibration Isolation Four resonance frequencies (f 0 ) Hz and a half-value width (Δf) Hz are obtained from the response of the transfer function during resonance vibration by the resonance method.
Was read, and a loss coefficient η was determined by the following equation.
It should be noted that the anti-vibration property is more excellent as the loss coefficient η is larger.
【数１】η＝Δｆ／ｆ0 Η = Δf / f 0
【００３３】[0033]
【表１】 [Table 1]
【００３４】表１から判るように、本発明の防振性粉体
塗料ではいずれも損失係数ηが大きく、優れた防振性能
を有することが確認された。また、塗膜の外観、付着性
および耐衝撃性のいずれにおいても優れていることが判
った。As can be seen from Table 1, it was confirmed that all of the anti-vibration powder coatings of the present invention have a large loss coefficient η and have excellent anti-vibration performance. It was also found that the appearance, adhesion and impact resistance of the coating film were excellent.
【００３５】一方、比較例１では、ポリエステル粉体粒
子の平均粒径が小さいために、粉体塗料の流動性が悪
く、その結果、塗膜の外観は不良となった。また、比較
例２においても、ポリエステル粉体粒子の平均粒径が大
きいために、塗膜の外観は不良となった。On the other hand, in Comparative Example 1, since the average particle size of the polyester powder particles was small, the fluidity of the powder coating was poor, and as a result, the appearance of the coating film was poor. Also in Comparative Example 2, the appearance of the coating film was poor due to the large average particle size of the polyester powder particles.
【００３６】比較例３では、ポリウレタン樹脂粒子の平
均粒径が小さいために、防振性能が劣り、比較例４で
は、ポリウレタン樹脂粒子の平均粒径が大きいために、
塗膜の外観は不良となった。また、比較例５ではポリエ
ステル粉体粒子の粒径の標準偏差が大きいために、塗膜
の外観は不良となった。In Comparative Example 3, the average particle size of the polyurethane resin particles was small, so that the vibration-proof performance was poor. In Comparative Example 4, the average particle size of the polyurethane resin particles was large.
The appearance of the coating film was poor. In Comparative Example 5, the appearance of the coating film was poor because the standard deviation of the particle size of the polyester powder particles was large.
【００３７】比較例６では、ポリウレタン樹脂粒子の粒
径の標準偏差が小さいために、防振性能が劣り、比較例
７では、ポリウレタン樹脂粒子の粒径の標準偏差が大き
いために、塗膜外観は不良となった。また、比較例８で
は、粉体塗料中のポリエステル粉体粒子の割合が少ない
ために、塗装性が悪く塗膜の外観は不良となり、比較例
９では、粉体塗料中のポリエステル粉体粒子の割合が多
いために、防振性能が劣って塗膜外観が不良となった。In Comparative Example 6, the standard deviation of the particle size of the polyurethane resin particles was small, so that the vibration-proof performance was inferior. In Comparative Example 7, the standard deviation of the particle size of the polyurethane resin particles was large, and Became bad. In Comparative Example 8, since the proportion of the polyester powder particles in the powder coating was small, the coatability was poor and the appearance of the coating film was poor, and in Comparative Example 9, the polyester powder particles in the powder coating were poor. Due to the large ratio, the vibration-proof performance was inferior and the coating film appearance was poor.
【００３８】[0038]
【発明の効果】以上説明したように本発明の防振性粉体
塗料によれば、薄い膜厚でも充分な防振性能を発揮する
ことができる。しかも、粉体粒子の粒径の平均値や標準
偏差を所定の範囲にしているので、塗膜の外観および耐
衝撃性を向上させることができる。As described above, according to the anti-vibration powder coating of the present invention, sufficient anti-vibration performance can be exhibited even with a small film thickness. In addition, since the average value and the standard deviation of the particle size of the powder particles are within a predetermined range, the appearance and impact resistance of the coating film can be improved.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ //(Ｃ０９Ｄ 167/00 175:04） ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification symbol FI // (C09D 167/00 175: 04)
Claims (1)
とポリウレタン樹脂粒子とを混合し、 前記ポリエステル粉体粒子と前記ポリウレタン樹脂粒子
との混合比を重量比で前者：後者が１：１〜７：３と
し、 前記ポリエステル粉体粒子の平均粒径を１０〜２０μｍ
とし、 前記ポリウレタン樹脂粒子の平均粒子径を２０〜５０μ
ｍとし、 前記ポリエステル粉体粒子の粒径の標準偏差を１．４〜
４．１とし、 前記ポリウレタン樹脂粒子の粒径の標準偏差を６〜１２
としたことを特徴とする防振性粉体塗料。1. A method in which powder particles mainly composed of polyester resin and polyurethane resin particles are mixed, and the mixing ratio between the polyester powder particles and the polyurethane resin particles is 1: 1 to 7 by weight ratio. : 3, the average particle size of the polyester powder particles is 10 to 20 μm
And the average particle diameter of the polyurethane resin particles is 20 to 50 μm.
m, and the standard deviation of the particle size of the polyester powder particles is 1.4 to
4.1, and the standard deviation of the particle diameter of the polyurethane resin particles is 6 to 12.
An anti-vibration powder coating characterized by the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10041096A JPH11222563A (en) | 1998-02-06 | 1998-02-06 | Vibrationproof powder coating material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10041096A JPH11222563A (en) | 1998-02-06 | 1998-02-06 | Vibrationproof powder coating material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11222563A true JPH11222563A (en) | 1999-08-17 |
Family
ID=12598960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10041096A Withdrawn JPH11222563A (en) | 1998-02-06 | 1998-02-06 | Vibrationproof powder coating material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11222563A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002226773A (en) * | 2001-02-06 | 2002-08-14 | Dainippon Ink & Chem Inc | Powder coating resin composition |
| JP2021091848A (en) * | 2019-12-03 | 2021-06-17 | スターライト工業株式会社 | Solventless vibration control coating material, coating method and coated article |
| US11345822B2 (en) * | 2020-03-03 | 2022-05-31 | Ppg Industries Ohio, Inc. | Powder coating composition comprising an organometallic catalyst |
-
1998
- 1998-02-06 JP JP10041096A patent/JPH11222563A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002226773A (en) * | 2001-02-06 | 2002-08-14 | Dainippon Ink & Chem Inc | Powder coating resin composition |
| JP2021091848A (en) * | 2019-12-03 | 2021-06-17 | スターライト工業株式会社 | Solventless vibration control coating material, coating method and coated article |
| US11345822B2 (en) * | 2020-03-03 | 2022-05-31 | Ppg Industries Ohio, Inc. | Powder coating composition comprising an organometallic catalyst |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0918810B1 (en) | Low temperature cure carboxyl terminated polyesters | |
| JP6610654B2 (en) | Powder coating material, coated article and method for producing coated article | |
| GB2351680A (en) | Forming multilayer coating films | |
| US10655022B2 (en) | Powder coating material, method for producing powder coating material, and coated article | |
| JPH09255896A (en) | Powdery coating material composition to be readily screened | |
| JP3583532B2 (en) | Powder paint | |
| US6861467B2 (en) | Powder coating composition | |
| JP6863285B2 (en) | Manufacturing method of painted goods | |
| JPWO2004056497A1 (en) | Method for forming coating film on aluminum substrate | |
| JPH11222563A (en) | Vibrationproof powder coating material | |
| US6025035A (en) | Electrostatic coating method and coating film | |
| JP2002294164A (en) | Water-base soundproof vibration-proofing coating material composition, method for forming coating film, and coated object | |
| KR100583335B1 (en) | Thermosetting Powder Coating Composition | |
| JP2849353B2 (en) | Powder paint | |
| WO2017110924A1 (en) | Powder coating, method for producing powder coating, and coated article | |
| JP3470524B2 (en) | Powder coating composition | |
| JP2002194297A (en) | Designing powder coating composition for precoat material, method for forming designing coating film and precoat material with designing coating | |
| JP3994493B2 (en) | Coating composition, coating finishing method, and coated article | |
| JPH10231446A (en) | Powder coating material and powder coating method | |
| JPH05263018A (en) | Polyester resin composition for powder coating | |
| JP2001311045A (en) | Designable powder coating composition, method for forming designed coating film and coated article having design | |
| JPH01165675A (en) | Powder coating material composition | |
| JPH01254776A (en) | Resin composition for coating | |
| JPH11100534A (en) | Powder coating material for electrostatic coating and method for coating therewith | |
| JP2001247814A (en) | Heat-curable matte powder coating material composition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Application deemed to be withdrawn because no request for examination was validly filed |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20050510 |