JPH05320600A - Aqueous adhesive for spray-coating - Google Patents
Aqueous adhesive for spray-coatingInfo
- Publication number
- JPH05320600A JPH05320600A JP15567092A JP15567092A JPH05320600A JP H05320600 A JPH05320600 A JP H05320600A JP 15567092 A JP15567092 A JP 15567092A JP 15567092 A JP15567092 A JP 15567092A JP H05320600 A JPH05320600 A JP H05320600A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- parts
- latex
- aqueous solution
- spray
- 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.)
- Pending
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、水系接着剤に関し、よ
り詳しくはスプレ−塗布性の優れる水系接着剤に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water-based adhesive, and more particularly to a water-based adhesive having excellent spray coatability.
【０００２】[0002]
【従来の技術】従来より、クロロプレンラテックス、Ｓ
ＢＲラテックス、アクリルエマルジョンをベ−スとした
水系の接着剤は広く使用され、スプレ−塗布用としても
使用されている。2. Description of the Related Art Conventionally, chloroprene latex, S
Water-based adhesives based on BR latex and acrylic emulsion are widely used and also used for spray coating.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、これら
の接着剤は分散質、いわゆる微細粒子であるがために一
般的に粘度が低く、スプレ−ガンを用いて噴霧する際に
は、霧状（ミスト）となって周辺に飛散するため、作業
環境の悪化、及び製品への汚染が生じ、これまで、ロ−
ル塗布方法への変更や、被塗布物の周辺のマスキング処
理を行っていたものの、前者においては、被塗布物が立
体の場合、ロ−ル塗布が極めて困難であり、また、後者
においては、作業が煩わしいものとなっていた。However, since these adhesives are dispersoids, that is, so-called fine particles, their viscosity is generally low, and when they are sprayed using a spray gun, they are in the form of mist (mist). ), The work environment is deteriorated and the product is contaminated.
Although the change to the roll coating method or the masking treatment around the object to be coated was performed, in the former case, when the object to be coated is three-dimensional, roll coating is extremely difficult, and in the latter case, The work was troublesome.
【０００４】本発明は、かかる状況に鑑み検討されたも
のであって、本発明の基本とするところは、クロロプレ
ンラテックス、ＳＢＲラテックス、アクリルエマルジョ
ンなどのラテックス及びエマルジョンの粘度を上昇させ
るとともに、これらの接着剤の粒子について、スプレ−
塗布用水系接着剤の分散性を損うことがない程度に粒子
径を大きくし、また、スプレ−ガンより吐出される粒子
を吐出口を閉塞することがないように粒子径を小さくす
ることである。The present invention has been studied in view of such circumstances, and the basis of the present invention is to increase the viscosity of chloroprene latex, SBR latex, acrylic emulsion and the like, and to increase the viscosity of these latexes. For particles of adhesive,
By increasing the particle size to the extent that the dispersibility of the water-based adhesive for coating is not impaired and reducing the particle size so that the particles discharged from the spray gun do not block the discharge port. is there.
【０００５】すなわち、本発明は、カルボキシルナトリ
ウム塩を有するＰＨ７．０以上のポリマ−水溶液（Ａ）
と、クロロプレンラテックス、ＳＢＲラテックス、アク
リルエマルジョンの内１種以上（Ｂ）とを含む接着剤で
あって、（Ａ）の添加量が（Ｂ）の固形分１００重量部
に対して０．２〜１０重量部とすることにより先の課題
を解決することができる。That is, the present invention provides an aqueous polymer solution (A) having a pH of 7.0 or more and having a sodium carboxylate.
And one or more of chloroprene latex, SBR latex, and acrylic emulsion (B), wherein the addition amount of (A) is 0.2 to 100 parts by weight of the solid content of (B). The above problem can be solved by using 10 parts by weight.
【０００６】以下、本発明についてより詳細に説明す
る。The present invention will be described in more detail below.
【０００７】本発明で用いられるカルボキシルナトリウ
ム塩を有するＰＨ７．０以上のポリマ−水溶液（Ａ）と
しては、オレフィン系不飽和カルボン酸、不飽和ポリカ
ルボン酸、脂肪族不飽和エステルよりなるポリマ−を水
酸化ナトリウムで中和、もしくは加水分解したものを用
いることができる。ＰＨ７．０未満であると、増粘効果
が少なくなり好ましくない。As the polymer aqueous solution (A) having a pH of 7.0 or more and having a sodium carboxylate used in the present invention, a polymer comprising an olefinic unsaturated carboxylic acid, an unsaturated polycarboxylic acid and an aliphatic unsaturated ester is used. What was neutralized with sodium hydroxide or hydrolyzed can be used. If the pH is less than 7.0, the thickening effect is reduced, which is not preferable.
【０００８】オレフィン系不飽和カルボン酸としては、
アクリル酸、メタクリル酸、イタコン酸などの脂肪族不
飽和モノ（ジ）カルボン酸などが適用できる。As the olefinic unsaturated carboxylic acid,
Aliphatic unsaturated mono (di) carboxylic acids such as acrylic acid, methacrylic acid and itaconic acid can be applied.
【０００９】また、不飽和ポリカルボン酸としては、ポ
リアクリル酸、ポリメタクリル酸などを挙げることがで
き、より好ましくは、炭素数が少なく、水との相溶性に
優れるアクリル酸を用い、ポリアクリル酸ナトリウム塩
とするのが望ましい。Examples of the unsaturated polycarboxylic acid include polyacrylic acid and polymethacrylic acid. More preferably, acrylic acid having a small number of carbon atoms and excellent in compatibility with water is used. The sodium salt of the acid is preferred.
【００１０】また、脂肪族不飽和エステルとしては、例
えば、メチルメタクリレ−ト、メチルアクリレ−ト、エ
チルアクリレ−ト、ブチルアクリレ−ト、２−エチルヘ
キシルアクリレ−トなどを挙げることができ、アクリロ
ニトリル、アクリルアマイドよりなる重合体を水酸化ナ
トリウムで処理したものも適用しうる。Examples of the aliphatic unsaturated ester include methyl methacrylate, methyl acrylate, ethyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, and the like. Acrylonitrile and acryl A polymer of amide treated with sodium hydroxide can also be applied.
【００１１】さらに、耐水性を向上させるために、重合
時に揮散するカルボキシルアンモニム塩を有するポリマ
−水溶液を用いてもさしつかえない。Further, in order to improve the water resistance, an aqueous polymer solution containing a carboxylammonium salt which volatilizes during the polymerization may be used.
【００１２】本発明で用いられるクロロプレンゴムラテ
ックス、ＳＢＲラテックス、アクリルエマルジョン
（Ｂ）としては、変性、非変性いづれのタイプも使用し
うる。市販品としては、デンカＬＡ−５０（電気化学社
製）などのクロロプレンラテックス、ＪＳＲ０５９７
（日本合成ゴム社製）、ＳＮ−３０９（住友ノ−カダッ
ク社製）などのＳＢＲラテックス、Ｎ−５８０−Ｓ（Ｒ
＆Ｈ社製）、Ｕ−１５４（旭化成社製）などのアクリル
エマルジョンを例示しうる。As the chloroprene rubber latex, SBR latex and acrylic emulsion (B) used in the present invention, either modified or non-modified type may be used. Examples of commercially available products include chloroprene latex such as Denka LA-50 (manufactured by Denki Kagaku), JSR0597.
(Manufactured by Japan Synthetic Rubber Co., Ltd.), SBR latex such as SN-309 (manufactured by Sumitomo No-Kadak Co., Ltd.), N-580-S (R
& H) and U-154 (Asahi Kasei).
【００１３】カルボキシルナトリウム塩を有する塩を有
するＰＨ７．０以上のポリマ−水溶液（Ａ）の添加量と
しては、クロロプレンラテックス、ＳＢＲラテックス、
アクリルエマルジョンの内１種以上を固形分換算値で１
００重量部に対して０．２〜１０重量部、より好ましく
は、０．５〜５重量部とし、チキソトロピ−指数を３〜
７の範囲とすることが望ましい。The amount of the polymer aqueous solution (A) having a pH of 7.0 or more containing a salt having a sodium carboxylate is chloroprene latex, SBR latex,
1 or more of the acrylic emulsion is 1 in terms of solid content
0.2 to 10 parts by weight, more preferably 0.5 to 5 parts by weight, and a thixotropy index of 3 to 100 parts by weight.
A range of 7 is desirable.
【００１４】ここで、チキソトロピ−指数は、Ｂ型粘度
計を用いて、１２ｒｐｍで測定した粘度を６０ｒｐｍで
測定した粘度で割った値で、構造粘性を示す指数であ
る。Here, the thixotropy index is a value obtained by dividing the viscosity measured at 12 rpm by the viscosity measured at 60 rpm using a B type viscometer, and is an index showing the structural viscosity.
【００１５】ポリマ−水溶液（Ａ）の添加量が下限に満
たないと、増粘の効果が少なく、接着物性の重要な品質
である初期タック性も充分に得られにくい。また、上限
を超えると貯蔵安定性に乏しくなる。また、チキソトロ
ピ−指数が下限に満たないと、スプレ−塗布する際に接
着剤が飛散しやすく、上限を超えるとスプレ−塗布性に
不具合を生ずる。If the amount of the polymer aqueous solution (A) added is less than the lower limit, the effect of thickening is small and the initial tackiness, which is an important quality of the adhesive physical properties, cannot be sufficiently obtained. Further, if it exceeds the upper limit, the storage stability becomes poor. Further, if the thixotropy index is less than the lower limit, the adhesive is likely to scatter during spray coating, and if it exceeds the upper limit, a problem with spray coating properties occurs.
【００１６】さらに、被着材との密着性の向上や、耐水
性、耐熱性の向上を目的として、粘着付与剤、充填剤な
どを適宜添加することも可能で、粘着付与剤として、ク
ロロプレンラテックス、ＳＢＲラテックス、アクリルエ
マルジョンと相溶性のある水添ロジン、水添ロジンエス
テルなどのロジン系の粘着付与剤、α（β）ピネン樹脂
の重合体、テルペン−フェノ−ル樹脂などのポリテルペ
ン系の粘着付与剤が適用できる。充填剤としては、亜鉛
華、酸化チタン、シリカなどの無機質フィラ−を用いる
ことができる。Further, for the purpose of improving the adhesion to the adherend and improving the water resistance and heat resistance, tackifiers, fillers and the like can be added as appropriate. Chloroprene latex is used as the tackifier. , SBR latex, hydrogenated rosin compatible with acrylic emulsion, rosin-based tackifier such as hydrogenated rosin ester, polymer of α (β) pinene resin, polyterpene-based adhesive such as terpene-phenol resin An imparting agent can be applied. As the filler, an inorganic filler such as zinc white, titanium oxide or silica can be used.
【００１７】以下、本発明の実施例と比較例を挙げて説
明する。Examples of the present invention and comparative examples will be described below.
【００１８】実施例１ クロロプレンラテックス１００重量部に対して、ロジン
エステル２０重量部、ポリアクリル酸ナトリウム塩水溶
液２重量部、亜鉛華５重量部、非汚染性老化防止剤２重
量部、２５％アンモニア水０．５重量部、を順次撹拌し
ながら添加し、実施例１のスプレ−塗布用水系接着剤を
得た。Example 1 20 parts by weight of rosin ester, 2 parts by weight of sodium polyacrylate aqueous solution, 5 parts by weight of zinc white, 2 parts by weight of non-staining anti-aging agent, and 25% ammonia based on 100 parts by weight of chloroprene latex. 0.5 parts by weight of water was sequentially added with stirring to obtain a water-based adhesive for spray coating of Example 1.
【００１９】実施例２ ＳＢＲラテックス１００重量部、テルペンフェノ−ル１
０重量部、ポリアクリル酸ナトリウム塩水溶液２重量
部、２５％アンモニア水０．５重量部、を順次撹拌しな
がら添加し、実施例２のスプレ−塗布用水系接着剤を得
た。Example 2 100 parts by weight of SBR latex, terpene phenol 1
0 parts by weight, 2 parts by weight of a sodium polyacrylate aqueous solution, and 0.5 parts by weight of 25% aqueous ammonia were sequentially added with stirring to obtain a water-based adhesive for spray coating of Example 2.
【００２０】実施例３ アクリルエマルジョン１００重量部、ポリアクリル酸ナ
トリウム塩水溶液１重量部、２５％アンモニア水０．５
重量部、を順次撹拌しながら添加し、実施例３のスプレ
−塗布用水系接着剤を得た。Example 3 100 parts by weight of acrylic emulsion, 1 part by weight of sodium polyacrylate aqueous solution, 0.5% of 25% aqueous ammonia.
Parts by weight were sequentially added with stirring to obtain a water-based adhesive for spray coating of Example 3.
【００２１】比較例１ クロロプレンラテックス１００重量部に対して、ロジン
エステル２０重量部、亜鉛華５重量部、非汚染性老化防
止剤２重量部、を順次撹拌しながら添加し、比較例１の
水系接着剤を得た。Comparative Example 1 To 100 parts by weight of chloroprene latex, 20 parts by weight of rosin ester, 5 parts by weight of zinc oxide, and 2 parts by weight of non-staining antioxidant were sequentially added with stirring to prepare an aqueous system of Comparative Example 1. I got an adhesive.
【００２２】比較例２ クロロプレンラテックス１００重量部に対して、ロジン
エステル２０重量部、セルロ−ス系の増粘剤２重量部、
亜鉛華５重量部、非汚染性老化防止剤２重量部、を順次
撹拌しながら添加し、比較例２の水系接着剤を得た。Comparative Example 2 20 parts by weight of a rosin ester, 2 parts by weight of a cellulose-based thickener, and 100 parts by weight of a chloroprene latex.
5 parts by weight of zinc white and 2 parts by weight of a non-staining anti-aging agent were sequentially added with stirring to obtain a water-based adhesive of Comparative Example 2.
【００２３】比較例３ クロロプレンラテックス１００重量部に対して、ロジン
エステル２０重量部、ポリエ−テル系の増粘剤２重量
部、亜鉛華５重量部、非汚染性老化防止剤２重量部、を
順次撹拌しながら添加し、比較例３の水系接着剤を得
た。Comparative Example 3 20 parts by weight of a rosin ester, 2 parts by weight of a polyether type thickener, 5 parts by weight of zinc white, and 2 parts by weight of a non-staining antioxidant were added to 100 parts by weight of chloroprene latex. The water-based adhesives of Comparative Example 3 were obtained by adding them with stirring.
【００２４】接着剤の性状を表１に示す。The properties of the adhesive are shown in Table 1.
【表１】 [Table 1]
【００２５】評価結果を表２に示す。The evaluation results are shown in Table 2.
【表２】 [Table 2]
【００２６】試験方法については、以下の通りとした。The test method was as follows.
【００２７】成膜状態については、接着剤をスプレ−に
より鋼板に、塗布量が１５０ｇ/ｍ2となるように塗布
し、温度８０℃で乾燥させ、形成した膜状態を目視にて
確認した。Regarding the state of film formation, an adhesive was applied to a steel sheet by spraying so that the coating amount was 150 g / m 2 , dried at a temperature of 80 ° C., and the state of the formed film was visually confirmed.
【００２８】常態剪断強度については、２５ｍ/ｍ×１
００ｍ/ｍの鋼板を２枚用意し、塗布量が１５０ｇ/ｍ2
となるように塗布した後、８０℃で乾燥させ後、接着面
が２５ｍ/ｍ×２５ｍ/ｍとなるように貼り合わせて試験
片を作成した。その後、線圧２ｋｇｆ/ｃｍで圧締し、
２４時間養生後、雰囲気温度２０℃で剪断強度を測定し
た。Regarding normal shear strength, 25 m / m × 1
Prepare two sheets of 00m / m steel plate and apply the amount of 150g / m 2
After being applied so as to obtain a test piece, the test piece was dried at 80 ° C. and then bonded so that the adhesive surface was 25 m / m × 25 m / m. After that, tighten with a linear pressure of 2 kgf / cm,
After curing for 24 hours, the shear strength was measured at an ambient temperature of 20 ° C.
【００２９】コンタクト率（％）については、式１によ
り計算した。The contact rate (%) was calculated by the equation 1.
【式１】 [Formula 1]
【００３０】[0030]
【発明の効果】本発明のスプレ−用水系接着剤は、粘度
が高く、曳糸状であるため、スプレ−ガンより吐出され
る粒子が粗く、ミストの発生が著しく少なくなり作業周
辺の環境に与える影響を防ぐことができる。しかも、チ
キソトロピ−指数が高いために、粘度が高くても容易に
塗布することができる。Since the water-based adhesive for spraying of the present invention has a high viscosity and is in the form of a string, the particles discharged from the spray gun are coarse, and the generation of mist is remarkably reduced, which gives the environment around the work. The impact can be prevented. Moreover, since the thixotropy index is high, it can be easily applied even if the viscosity is high.
【００３１】さらに、本発明のスプレ−用水系接着剤
は、塗布面や成膜面は凹凸であるために、被着材のひず
みや凹凸に対応することができる。また、平滑な塗布面
より低い圧力で貼り合わすことが可能である。Further, the water-based adhesive for spraying of the present invention has unevenness on the coating surface and the film-forming surface, so that it can cope with the strain and unevenness of the adherend. In addition, it is possible to bond with a pressure lower than that of a smooth coated surface.
Claims (2)
７．０以上のポリマ−水溶液（Ａ）と、クロロプレンラ
テックス、ＳＢＲラテックス、アクリルエマルジョンの
内１種以上（Ｂ）とを含む接着剤であって、（Ａ）の添
加量が（Ｂ）の固形分１００重量部に対して０．２〜１
０重量部であることを特徴とするスプレ−塗布用水系接
着剤。1. A PH having a sodium carboxylate.
An adhesive containing a polymer aqueous solution (A) of 7.0 or more and one or more kinds (B) of chloroprene latex, SBR latex, and acrylic emulsion, wherein the amount of (A) added is solid (B). 0.2 to 1 per 100 parts by weight
A water-based adhesive for spray application, which is 0 part by weight.
シルナトリウム塩がカルボキシルアンモニウム塩である
ことを特徴とするスプレ−塗布用水系接着剤。2. The water-based adhesive for spray coating according to claim 1, wherein the carboxyl sodium salt is a carboxyl ammonium salt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15567092A JPH05320600A (en) | 1992-05-21 | 1992-05-21 | Aqueous adhesive for spray-coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15567092A JPH05320600A (en) | 1992-05-21 | 1992-05-21 | Aqueous adhesive for spray-coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05320600A true JPH05320600A (en) | 1993-12-03 |
Family
ID=15611024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15567092A Pending JPH05320600A (en) | 1992-05-21 | 1992-05-21 | Aqueous adhesive for spray-coating |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05320600A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008067365A2 (en) * | 2006-11-30 | 2008-06-05 | Illinois Tool Works Inc. | Water-based polychloroprene adhesive |
| WO2011065524A1 (en) * | 2009-11-30 | 2011-06-03 | 昭和電工株式会社 | Chloroprene polymer latex composition and use thereof |
| WO2013141170A1 (en) * | 2012-03-19 | 2013-09-26 | 昭和電工株式会社 | Chloroprene rubber-based polymer latex composition and use thereof |
| CN109679538A (en) * | 2018-12-31 | 2019-04-26 | 广东泰强科技实业有限公司 | A kind of low VOC mixed type glue spraying and preparation method thereof |
| CN113136152A (en) * | 2021-03-26 | 2021-07-20 | 湖南浩森胶业有限公司 | High-stability electronic adhesive |
-
1992
- 1992-05-21 JP JP15567092A patent/JPH05320600A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008067365A2 (en) * | 2006-11-30 | 2008-06-05 | Illinois Tool Works Inc. | Water-based polychloroprene adhesive |
| WO2008067365A3 (en) * | 2006-11-30 | 2008-10-16 | Illinois Tool Works | Water-based polychloroprene adhesive |
| US8118969B2 (en) | 2006-11-30 | 2012-02-21 | Illinois Tool Works Inc. | Water-based polychloroprene adhesive |
| WO2011065524A1 (en) * | 2009-11-30 | 2011-06-03 | 昭和電工株式会社 | Chloroprene polymer latex composition and use thereof |
| WO2013141170A1 (en) * | 2012-03-19 | 2013-09-26 | 昭和電工株式会社 | Chloroprene rubber-based polymer latex composition and use thereof |
| JP5487364B2 (en) * | 2012-03-19 | 2014-05-07 | 昭和電工株式会社 | Chloroprene rubber-based polymer latex composition and use thereof |
| US9023948B2 (en) | 2012-03-19 | 2015-05-05 | Showa Denko K.K. | Chloroprene rubber-based polymer latex composition and use thereof |
| TWI585140B (en) * | 2012-03-19 | 2017-06-01 | Showa Denko Kk | Chloroprene rubber based polymer latex compositions and their use |
| CN109679538A (en) * | 2018-12-31 | 2019-04-26 | 广东泰强科技实业有限公司 | A kind of low VOC mixed type glue spraying and preparation method thereof |
| CN109679538B (en) * | 2018-12-31 | 2022-03-08 | 广东泰强科技实业有限公司 | Low-VOC (volatile organic compound) mixed spray adhesive and preparation method thereof |
| CN113136152A (en) * | 2021-03-26 | 2021-07-20 | 湖南浩森胶业有限公司 | High-stability electronic adhesive |
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