JPH0819398B2 - Anti-condensation agent - Google Patents
Anti-condensation agentInfo
- Publication number
- JPH0819398B2 JPH0819398B2 JP33225692A JP33225692A JPH0819398B2 JP H0819398 B2 JPH0819398 B2 JP H0819398B2 JP 33225692 A JP33225692 A JP 33225692A JP 33225692 A JP33225692 A JP 33225692A JP H0819398 B2 JPH0819398 B2 JP H0819398B2
- Authority
- JP
- Japan
- Prior art keywords
- dew condensation
- synthetic resin
- water
- resin emulsion
- test piece
- 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.)
- Expired - Lifetime
Links
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- Agricultural Chemicals And Associated Chemicals (AREA)
- Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Paints Or Removers (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、結露発生箇所にあらか
じめ塗布することにより、結露の発生を防止する薬剤に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chemical which prevents the occurrence of dew condensation by applying it to the dew condensation generation site in advance.
【0002】[0002]
【従来の技術】建築物の壁,柱等に発生する結露の防止
には、断熱性に富む材料をパネル,壁材等の建材として
用いたり、あるいは外壁と内壁の中間に熱伝導性の低い
繊維状物を充填したりなどして、低温部の熱の高温多湿
部への移動を阻止あるいは抑止するか、結露面へ乾燥空
気を送風するなどの方法をとってきた。また、近年、高
吸水性樹脂を塗料に混合して結露防止塗料とし、これを
結露箇所に塗布することにより、発生した結露を吸収す
る方法などが考案されており、また結露箇所に発生し易
いカビの防止には、防カビ剤もしくはカビ止め塗料の塗
布、防カビ剤入りのパネルや壁紙の取付、貼付などの方
法がとられていた。2. Description of the Related Art In order to prevent dew condensation on a wall or a pillar of a building, a material having a high heat insulating property is used as a building material such as a panel or a wall material, or a material having a low thermal conductivity between an outer wall and an inner wall. For example, by filling with a fibrous material, the transfer of heat from the low temperature part to the high temperature and high humidity part is prevented or suppressed, or dry air is blown to the dew condensation surface. In addition, in recent years, a method of absorbing the generated dew condensation by mixing the highly water-absorbent resin with the coating material to form a dew condensation prevention coating, and applying it to the dew condensation location has been devised, and it is likely to occur at the dew condensation location. For the prevention of mold, methods such as application of an antifungal agent or antifungal paint, attachment of a panel or wallpaper containing an antifungal agent, and sticking have been used.
【0003】[0003]
【発明が解決しようとする課題】上述のように、従来、
結露,カビの発生が予想される箇所のこれらの発生の防
止のためには、材料費も高く、工費もかさむ建材の選
定、工事上の対策を講ずる必要があった。事実上、結
露,カビが発生しなかった場合には、これらの費用は全
く無駄になってしまう訳であるが、かといって、あらか
じめ防止対策を行わず、事後にこれらの対策を行おうと
すると更に高額な費用を要することは自明である。この
点では、前記高吸水性樹脂を配合した結露防止塗料は、
簡便で施工費も低廉であり、事後対策も容易であるが、
結露発生量の多い場合には単純な配合品である従来のも
のではこれらに対処することは不可能である。即ち、従
来の結露防止塗料は、その塗膜が湿気,結露をまともに
吸収するため、高湿度時や結露発生量の多いときには、
塗膜が吸収した水のため短時間に大きく膨潤して吸水限
界に達し結露防止能力が著しく低下するか、過大な膨潤
のため塗膜の強度が著しく損なわれ、塗膜剥離などの障
害が起こり易かった。また、防カビ対策としては、防カ
ビ剤を局所に塗布するか、塗料にあらかじめ配合してお
くなどの方法がとられるが、結露防止塗料に防カビ剤を
配合すると、防カビ剤の成分によっては、塗膜の吸水性
能の低下、変色、不快臭あるいは有害ガスの発生などの
問題を派生するので選定も容易ではなかった。本発明
は、結露発生箇所に薄く塗布するのみで上述の諸問題を
一挙に解決することができる特殊な結露防止剤を提供し
ようとするものである。As described above, as described above,
In order to prevent the occurrence of dew condensation and mold at the places where they are expected to occur, it was necessary to select construction materials that would require high material costs and construction costs, and to take construction measures. In fact, if there is no condensation or mold, these costs are completely wasted. However, if you do not take preventive measures in advance and try to take these measures after the fact. It is self-evident that it will cost more money. In this respect, the anti-condensation paint containing the highly water-absorbent resin,
It is simple, the construction cost is low, and the post-measures are easy, but
When there is a large amount of dew condensation, it is impossible to deal with these problems with a conventional one that is a simple compounding product. That is, since the conventional anti-condensation paint absorbs moisture and dew condensation properly, when the humidity is high or the amount of dew condensation is large,
Due to the water absorbed by the coating film, it swells significantly in a short time and reaches the water absorption limit, and the dew condensation prevention ability decreases significantly, or the excessive swelling significantly impairs the strength of the coating film and causes problems such as peeling of the coating film. It was easy. As a mildew proof measure, a method such as topically applying a mildew proofing agent or premixing it in the paint can be used. Was not easy to select because it causes problems such as deterioration of water absorption performance of the coating film, discoloration, unpleasant odor or generation of harmful gas. The present invention is intended to provide a special anti-condensation agent that can solve the above-mentioned various problems all at once by simply applying it thinly on the dew condensation-occurring portion.
【0004】[0004]
【課題を解決するための手段】本発明は、高吸水性樹脂
と、アクリル系合成樹脂エマルジョン又は酢酸ビニル系
合成樹脂エマルジョンもしくはこれら両系の共重合体エ
マルジョンと、フッ素系合成樹脂エマルジョン又はシリ
コーン系合成樹脂エマルジョンとを主成分としたことを
特徴とする結露防止剤であり、また前記主成分に抗菌剤
を添加し防カビ効果を高めたもので、これらを水に分
散,混和した白色糊状物質として用いる。高吸水性樹脂
には、デンプン系(変性PVAグラフト化澱粉、三洋化
成工業株式会社、商品名サンウェット),カルボキシメ
チルセルロース系(ダイセル、商品名ジエルファイ
ン),ポリアクリル酸系(三洋化成株式会社、サンフレ
ッシュST−500MPS),ポバール系(住友化学、
商品名スミカゲル)あるいはこれらの共重合系などさま
ざまなものが知られている。本発明で用いられる高吸水
性樹脂としては、これらの中でなるべく吸水率の大き
い、吸収速度の速いものが良く、また、粒子は製造時に
ママコになり易いという欠点はあるが、微細なものの方
が塗膜の強度,ツヤ,結露防止性能などの点で優れてい
る。アクリル系合成樹脂エマルジョン又は酢酸ビニル系
合成樹脂エマルジョンもしくはこれら両者の共重合体エ
マルジョン(以下、これらを一括して「アクリル系合成
樹脂等エマルジョン」と称す)は高吸水性樹脂を局所に
膜状に添着させるためのバインダーとして用いられるも
ので、接着力と柔軟性,弾力性に富んだものであること
が重要である。フッ素系合成樹脂エマルジョンには、四
フッ化エチレン樹脂、四フッ化エチレン六フッ化プロピ
レン樹脂、フッ素系変性樹脂等さまざまなエマルジョン
があり、シリコーン系合成樹脂エマルジョンにはモノメ
チルトリクロロシラン,モノエチルトリクロロシラン等
とジメチルジクロロシラン,ジエチルジクロロシラン等
の重縮合体のアルキド樹脂,フェノール樹脂,セルロー
ス誘導体等による変性樹脂エマルジョン等さまざまなも
のがあるが、本発明に用いられるものはいずれも撥水
性,撥油性に富むものが望まれる(以下これらを「フッ
素系合成樹脂等エマルジョン」と称す)。また、シリコ
ーン系合成樹脂エマルジョンとしてモノメチルあるいは
ジエチルトリクロロシランとジメチルあるいはジエチル
ジクロロシランの縮合樹脂エマルジョン系塗料等があ
る。また、抗菌剤は防カビを目的として添加されるが、
フェノール系,ニトチリル系,ピリジン系,イミダゾー
ル系(武田薬品工業株式会社、コートサイドー55D)
など広範囲にわたっており、防カビ性能、化学的安定
性、人体に対する安全性が大で、異臭のないことが必要
である。The present invention is directed to a highly water-absorbent resin, an acrylic synthetic resin emulsion, a vinyl acetate synthetic resin emulsion, or a copolymer emulsion of these two systems, a fluorine synthetic resin emulsion, or a silicone system. A dew condensation preventive agent characterized by containing a synthetic resin emulsion as a main component, and an antibacterial agent added to the main component to enhance the antifungal effect. A white paste-like paste prepared by dispersing and mixing these in water. Used as a substance. Superabsorbent resins include starch-based (modified PVA-grafted starch, Sanyo Kasei Co., Ltd., trade name Sunwet), carboxymethylcellulose-based (Daicel, trade name JELLFINE), polyacrylic acid-based (Sanyo Kasei Co., Ltd., Sunfresh ST-500MPS, Poval type (Sumitomo Chemical,
Various products are known, such as the trade name Sumika gel) and their copolymerization systems. As the super absorbent resin used in the present invention, those having a high water absorption rate among them, those having a high absorption rate are preferable, and the particles have a drawback that they tend to become mama during production, but finer ones. Is excellent in terms of coating strength, gloss, and dew condensation prevention performance. Acrylic synthetic resin emulsion, vinyl acetate synthetic resin emulsion, or a copolymer emulsion of both of them (hereinafter collectively referred to as "acrylic synthetic resin emulsion") is a highly water-absorbent resin locally formed into a film. It is used as a binder for attachment, and it is important that it be rich in adhesive strength, flexibility and elasticity. Fluorine-based synthetic resin emulsions include various emulsions such as tetrafluoroethylene resin, tetrafluoroethylene-hexafluoropropylene resin, and fluorine-based modified resin. Silicone-based synthetic resin emulsions include monomethyltrichlorosilane and monoethyltrichlorosilane. Etc. and dimethyldichlorosilane, diethyldichlorosilane, and other polycondensation alkyd resins, phenolic resins, modified resin emulsions with cellulose derivatives, and the like, but there are various ones used in the present invention. Those that are rich in are desired (hereinafter, these are referred to as "fluorine-based synthetic resin emulsions"). Further, as the silicone-based synthetic resin emulsion, there is a condensed resin emulsion-based paint of monomethyl or diethyltrichlorosilane and dimethyl or diethyldichlorosilane. Also, antibacterial agents are added for the purpose of preventing mildew,
Phenol type, Nitotyryl type, Pyridine type, Imidazole type (Takeda Pharmaceutical Co., Ltd., Courtside-55D)
It is necessary to have a wide range of antifungal properties, chemical stability, safety for human body, and no offensive odor.
【0005】上記4原料の配合比は、原料の種類によっ
ても異なるが、研究の結果およそ次の如き比率(有効成
分乾燥重量比)が好ましい。 高吸水性樹脂 2〜4部 アクリル系合成樹脂等エマルジョン 5〜7部 フッ素系合成樹脂等エマルジョン 0.5〜1.5部 抗菌剤 0.05〜0.2部 この原料を水に分散,混和して使用するが、純水もしく
は極力塩類濃度の低い水が望ましく、水量は高吸水性樹
脂(乾燥重量)の約30倍程度が好ましい。The blending ratio of the above four raw materials varies depending on the kind of the raw materials, but as a result of research, the following ratio (dry weight ratio of active ingredient) is preferable. Super absorbent resin 2-4 parts Emulsion of acrylic synthetic resin 5-7 parts Emulsion of fluorine synthetic resin 0.5-1.5 parts Antibacterial agent 0.05-0.2 parts Dispersing and mixing this raw material in water However, pure water or water whose salt concentration is as low as possible is desirable, and the amount of water is preferably about 30 times that of the highly water-absorbent resin (dry weight).
【0006】[0006]
【作用】本発明の結露防止剤(以下「本剤」と称す)
は、塗布し易い濃度に水で適宜希釈し、ローラ刷毛,ス
プレーガンなど、一般塗料と同様な方法で容易に塗布す
ることができる。本剤を塗布し、乾燥すると、白色半透
明の塗膜が形成される。この塗膜は、配合された高吸水
性樹脂の働きにより、膜面が露点に達しても結露は直ち
に吸収され膜面に結露水は認められない。また、吸収さ
れた結露水は、塗膜周囲の環境の湿度の低下、あるいは
低温部の温度上昇により露点状態からの開放があると、
直ちに蒸発によって吸収した水を放出して原状に復帰
し、吸水性能は回復する。本剤に用いられるアクリル系
合成樹脂等エマルジョンは、上述したように高吸水性樹
脂を局所に接着するためのバインダーであり、強力な接
着力はもとより、バインダーの粒子間に分散する高吸水
性樹脂の粒子の吸水による膨潤に耐え得ることが必要で
あるため、極力柔軟性,弾力性に優れたバインダーを配
合することが重要である。高吸水性樹脂とこのバインダ
ーとの配合比は前記したとおりであり、このバインダー
が過多であると接着性は強化されるが、高吸水性樹脂の
比表面積が減少して吸水性能が低下し、一方過少である
と接着性や耐剥離性が低下する。本剤に用いられるフッ
素系合成樹脂等エマルジョンは、これを配合することに
より、塗膜面での温度が露点温度に到達しても、撥水性
により空気中の水蒸気が膜面にて凝結即結露水となるこ
とを抑止し、不必要に高吸水性樹脂が吸水し吸水容量即
吸水性能が低下することを防止する。その配合比は前記
したとおりであるが、過多であると過酷な結露条件が与
えられたようなとき、膜面に生じた結露水の吸収が悪く
なる。また、無添加では、高吸水性樹脂の必要吸水量が
増加するため、吸水性能の低下,塗膜の膨潤,剥離など
の障害が起こり易い。撥油性を兼備するフッ素系合成樹
脂等エマルジョンを配合すると塗膜の汚損が軽減され
る。本剤に用いられる抗菌剤は、カビの発生防止のため
配合するものであるが、結露防止には効果がないので極
力少量で効果のあるものが望まれる。また、本剤が居住
空間に使用されることも多いので、防カビ性能はもとよ
り、効果の持続性に優れたもの、異臭や毒性のないもの
であることが必要である。後述の性能試験で採用した抗
菌剤(ベンズイミダゾール系化合物の含窒素硫黄系化合
物の配合剤)は優れた性能を示した。[Function] Anti-condensation agent of the present invention (hereinafter referred to as "this agent")
Can be appropriately diluted with water to a concentration that makes it easy to apply, and can be easily applied by a method similar to that for general paints such as roller brush and spray gun. When this agent is applied and dried, a white translucent coating film is formed. Due to the function of the superabsorbent resin blended in this coating film, even if the film surface reaches the dew point, dew condensation is immediately absorbed and no dew condensation water is observed on the film surface. In addition, when the condensed water absorbed absorbs water from the dew point due to a decrease in the humidity of the environment around the coating film or an increase in the temperature of the low temperature part,
Immediately, the absorbed water is released by evaporation and returns to the original state, and the water absorption performance is restored. The acrylic synthetic resin emulsion used in this agent is a binder for locally adhering the super absorbent resin as described above, and not only has a strong adhesive force but also a super absorbent resin dispersed between the particles of the binder. Since it is necessary to withstand the swelling of the particles due to water absorption, it is important to incorporate a binder having excellent flexibility and elasticity as much as possible. The compounding ratio of the super absorbent polymer and this binder is as described above, and if this binder is excessive, the adhesiveness is strengthened, but the specific surface area of the super absorbent resin decreases and the water absorption performance decreases, On the other hand, when the amount is too small, the adhesiveness and the peeling resistance are deteriorated. The fluorine-based synthetic resin emulsion used in this product is compounded so that even if the temperature on the coating surface reaches the dew point temperature, water repellency causes water vapor in the air to condense and immediately form condensation on the film surface. It prevents water from becoming water and prevents the superabsorbent resin from unnecessarily absorbing water and immediately reducing the water absorption capacity. The compounding ratio is as described above, but if it is excessive, the absorption of the dew condensation water generated on the film surface will be deteriorated under the severe dew condensation conditions. In addition, without addition, the required water absorption amount of the super absorbent polymer increases, so that problems such as deterioration of water absorption performance, swelling of the coating film, and peeling are likely to occur. Mixing an emulsion such as a fluorine-based synthetic resin that also has oil repellency reduces the stain on the coating film. The antibacterial agent used in this drug is added to prevent the formation of mold, but it is ineffective in preventing dew condensation, and therefore it is desirable that it be effective even in a small amount. In addition, since this drug is often used in living spaces, it is necessary that it has excellent antifungal properties as well as long-lasting effects, and that it has no offensive odor or toxicity. The antibacterial agent (a compounding agent of a nitrogen-containing sulfur-based compound of a benzimidazole-based compound) used in the performance test described below showed excellent performance.
【0007】[0007]
【実施例】1.試験装置 図1に示すように、低温恒温槽Aと恒温恒湿槽Bを隣接
させ、両槽間に連通開口Cを設け、この連通開口Cを塞
ぐように試験片Pを吊り下げ、その重量を測定する電子
天秤Dを備えた結露発生装置により結露防止剤の効果を
試験した。 2.試験片 200mm×200mm×1mmのアルミ板を使用し、
次の3種類を準備した。 アルミ板に本剤を5g塗布したもの(本発明試験片
) アルミ板にフッ素系合成樹脂エマルジョン不含結露
防止剤を5g塗布したもの(比較試験片) 無処理アルミ板(比較試験片) 3.本剤の調合方法 水90部に粉末状高吸水性樹脂(三洋化成株式会社、サ
ンフレッシュST−500MPS)(有効成分95%)
3部を添加し均一な糊状になるまで十分混和した。つい
で、アクリル系合成樹脂エマルジョン(中央理化工業株
式会社、リカボンドES−1)(有効成分43%)13
部、フッ素系合成樹脂エマルジョン(旭化成株式会社、
フルオンロリアンタルコート)(有効成分40%)2
部、有機窒素系化合物および有機窒素硫黄系化合物配合
白色抗菌剤懸濁液(武田薬品工業株式会社、コートサイ
ド−55D)(有効成分14%)1部を添加し、十分混
和して約24時間熟成した後、再度十分攪拌した。 4.比較例のフッ素系合成樹脂エマルジョン不含結露防
止剤の調合方法 前記本剤の成分中、フッ素系合成樹脂エマルジョン2部
の添加に代えアクリル系合成樹脂エマルジョン(中央理
化工業株式会社、リカボンドES−1)2部を増量した
(合計15部)。調合方法は同様。 5.結露防止剤の塗布方法 試験片のアルミ板に各5gを均一に塗布し、約65℃で
絶乾状態まで乾燥した。[Example] 1. Test device As shown in FIG. 1, a low temperature constant temperature bath A and a constant temperature constant humidity bath B are adjacent to each other, a communication opening C is provided between the two baths, and a test piece P is hung so as to close the communication opening C, and its weight The effect of the anti-condensation agent was tested by a dew condensation generating device equipped with an electronic balance D for measuring. 2. Using a 200 mm x 200 mm x 1 mm test piece aluminum plate,
The following three types were prepared. Aluminum plate coated with 5 g of this agent (invention test piece) Aluminum plate coated with 5 g of fluorine-based synthetic resin emulsion-free dew condensation inhibitor (comparative test piece) Untreated aluminum plate (comparative test piece) 3. Preparation method of this agent Powdery super absorbent resin (SANYO CHEMICAL CO., LTD., Sunfresh ST-500MPS) in 90 parts of water (95% active ingredient)
3 parts were added and mixed well until a uniform paste was formed. Next, acrylic synthetic resin emulsion (Chuo Rika Kogyo Co., Ltd., Ricabond ES-1) (active ingredient 43%) 13
Department, Fluorine-based synthetic resin emulsion (Asahi Kasei Co., Ltd.,
Full on Loriantal coat) (active ingredient 40%) 2
Part, an organic nitrogen compound and an organic nitrogen-sulfur compound-containing white antibacterial agent suspension (Takeda Pharmaceutical Co., Ltd., Courtside-55D) (active ingredient 14%) (1 part) were added, and the mixture was thoroughly mixed for about 24 hours. After aging, the mixture was sufficiently stirred again. 4. Preparation Method of Fluorine-Based Synthetic Resin Emulsion-Free Dew Condensation Prevention Agent of Comparative Example Acrylic-based synthetic resin emulsion (Central Rika Kogyo Co., Ltd., Ricabond ES-1) was added in place of the addition of 2 parts of the fluorine-based synthetic resin emulsion in the components of the agent. ) 2 parts were added (15 parts total). The preparation method is the same. 5. Method of Applying Dew Condensation Agent 5 g of each was uniformly applied to an aluminum plate of a test piece, and dried at about 65 ° C. to an absolutely dry state.
【0008】6.試験結果 上記結露発生装置において、試験片の表面(試験面,塗
膜面)を加湿側,裏面を冷却側に向け、加湿側の条件は
20℃,RH80%(このときの露点は16℃)に固定
し、冷却側の温度を変化させて各試験片の結露の状態を
調査した。図2は、試験片の表面温度を15℃に保持し
たときの結露の発生状態、即ち試験片の吸湿,吸水,結
露による重量変化を示したものである。試験片の表面温
度の15℃は、この加湿側条件においては、結露するか
しないかの限界に近い温度で、本発明試験片には、視
覚,指触によっても長時間結露は全く認められなかっ
た。わずかに重量の増加はあったが、これは塗膜の吸湿
によるものと考えられる。一方、比較試験片では、短
時間では結露は認められなかったが長時間後にはわずか
に認められ、比較試験片では短時間で表面のクモリか
ら水滴の発生が認められた。図3は、試験片の表面温度
を10℃に保持したときのものであるが、図2のケース
と大同小異であった。図4は、試験片の表面温度を5℃
と極端に温度を下げた場合であり、このような条件は通
常の建築環境ではまず考えられない過酷な条件である
が、本発明試験片では2時間15分後に、ようやく表
面に結露の発生が認められた。しかし、この結露および
吸収された水分は、加湿側20℃RH40%で表面温度
20℃の常温程度に戻すと短時間のうちに放散され原状
に復帰した。これに比し、比較試験片は、結露出現も
速く単位時間内での吸水量が多いため、結露防止剤とし
ての能力ははるかに劣っていた。また、比較試験片で
は、結露の発生が激しく、雫がしたたり落ちる状況であ
った。アルミニウムは熱伝導性が良く吸水性がないた
め、露点以下の温度条件が与えられれば直ちに結露が発
生し、生じた結露水は自由水であるために結露水内部で
の水の対流による熱の移動は容易であり、断熱性は少な
く、ほとんど結露速度は低下することなく結露しつづけ
る。6. Test results In the above-mentioned dew condensation generator, the front surface (test surface, coating surface) of the test piece faces the humidification side, the back surface faces the cooling side, the humidification side conditions are 20 ° C and RH 80% (the dew point at this time is 16 ° C). The temperature of the cooling side was changed and the state of dew condensation on each test piece was investigated. FIG. 2 shows the state of dew condensation when the surface temperature of the test piece is kept at 15 ° C., that is, the weight change due to moisture absorption, water absorption, and dew condensation of the test piece. The surface temperature of 15 ° C. of the test piece is a temperature close to the limit of whether or not dew condensation occurs under this humidification side condition, and the test piece of the present invention shows no dew condensation for a long time even visually or by touching with a finger. It was Although there was a slight increase in weight, it is considered that this is due to the moisture absorption of the coating film. On the other hand, in the comparative test piece, dew condensation was not observed in a short time, but it was slightly observed after a long time, and in the comparative test piece, water droplets were observed from the surface cloud in a short time. FIG. 3 shows the case where the surface temperature of the test piece was kept at 10 ° C., which was almost the same as the case of FIG. FIG. 4 shows the surface temperature of the test piece at 5 ° C.
When the temperature is extremely lowered, such a condition is a severe condition that is unlikely to be considered in a normal building environment. However, in the test piece of the present invention, dew condensation finally occurs on the surface after 2 hours and 15 minutes. Admitted. However, the dew condensation and absorbed water were diffused and returned to the original state within a short time when the temperature was returned to about room temperature with the surface temperature of 20 ° C. at the humidification side of 20 ° C. and RH of 40%. On the other hand, the comparative test piece was much inferior in its ability as a dew condensation preventive agent since it had a fast condensation exposure and a large water absorption amount per unit time. Further, in the comparative test piece, dew condensation was severe and the drop was dripping. Since aluminum has good thermal conductivity and does not absorb water, dew condensation will occur immediately when a temperature condition below the dew point is given, and since the dew condensation water generated is free water, the heat generated by convection of water inside the dew condensation water It is easy to move, has little heat insulation, and continues to condense with almost no decrease in dew rate.
【0009】以上の試験結果から、本剤塗布面における
結露発生についての現象は、 結露発生力 + 結露水生成抑止力 − 高吸水性樹脂による吸水 − 高吸水性樹脂中の結合水による断熱効果 − 高吸水性樹脂中の吸水進行による吸水力の低下 + 高吸水性樹脂中の吸収水の放出 − 等の働きの合力によるものと考えられる。即ち、本剤を
塗布した試験片は、運転開始当初において吸湿容量分の
み水分を吸収すると、その後は撥水性のため、本来塗布
面で凝縮し生成する筈の水分即ち結露の発生が極めて少
なく、従って水分の吸収による試験片の重量増加も極め
て少ない。また、吸収された水は結合水となり、対流に
よる熱の移動は行われないため、断熱性が増加し結露生
成の速度はその分低減する。更に運転が継続されると、
蓄積された吸水のため、次第に吸水力が低下して生成し
た結露水の吸収が悪くなり、表面に可視結露を生ずるよ
うになるが、比較試験片に比べて可視結露の出現はは
るかに遅い。運転中に吸水した本剤の塗膜は、運転を停
止し平常の環境に戻すと直ちに吸収された水分が蒸発を
始め、短時間のうちに塗膜は状態,性能とも復元する。From the above test results, the phenomenon of dew condensation on the surface coated with this product is as follows: Dew condensation generation force + Dew condensation water generation deterrence force-Water absorption by super absorbent polymer-Adiabatic effect by combined water in super absorbent resin- It is considered that this is due to the combined force of the decrease in water absorption due to the progress of water absorption in the superabsorbent resin + the release of absorbed water in the superabsorbent resin. That is, the test piece coated with this agent absorbs water only in the moisture absorption capacity at the beginning of the operation, and thereafter, due to water repellency, the occurrence of water that should originally be condensed and generated on the application surface, that is, dew condensation is extremely small, Therefore, the weight increase of the test piece due to the absorption of water is extremely small. Further, the absorbed water becomes bound water and heat is not transferred by convection, so that the heat insulating property is increased and the rate of dew condensation is reduced accordingly. If the operation is continued,
Due to the accumulated water absorption, the water absorption power gradually decreases, and the absorption of the generated dew condensation water becomes poor, and visible dew condensation occurs on the surface, but the appearance of visible dew condensation is much slower than that of the comparative test piece. When the coating film of this agent that absorbed water during operation was stopped and returned to a normal environment, the absorbed water immediately began to evaporate, and the coating film was restored to its state and performance within a short time.
【0010】防カビ効果 本剤を化学分析用ろ紙に塗布し、20℃,RH60%の
試験室に24時間静置した後、寸法40mm×40mm
に切断して試験片とした。この試験片を寒天培地上に静
置し、アスペルギウス・ニゲル,ペニシリウム・シトリ
ナム,リゾープス・ストロニフェル,クラドスポリウム
・クラドスポリオイテス,ケトミウム・クロボスム等の
カビ胞子懸濁液を各1ml散布した後、28℃±2℃,
RH95%以上で2週間培養しカビの発育状況を観察し
た。その結果、本剤を塗布した試験片にはカビの発生は
認められず、変色や不快臭もなかった。また、これと同
時に行った本剤を塗布しない無処理の試験片には、全面
にカビの発生が認められた。Antifungal effect This agent was applied to a filter paper for chemical analysis and allowed to stand in a test room at 20 ° C. and RH 60% for 24 hours, and then the size was 40 mm × 40 mm.
It was cut into a test piece. This test piece was allowed to stand on an agar medium, and sprayed with 1 ml each of mold spore suspensions of Aspergius niger, Penicillium citrinum, Rhizopus stronifer, Cladosporium cladsporioites, Ketomium clobosum, etc. 28 ℃ ± 2 ℃,
After culturing at RH of 95% or more for 2 weeks, the growth of mold was observed. As a result, no mold was found on the test pieces coated with this drug, and neither discoloration nor unpleasant odor was observed. In addition, on the untreated test pieces that were not coated with this drug, which were also treated at the same time, generation of mold was observed on the entire surface.
【0011】[0011]
【発明の効果】以上述べたように、本発明による結露防
止剤は結露発生箇所に薄く塗布するのみで、たとえ過酷
な結露条件下でも、塗膜の過大な膨潤がなく、塗膜の強
度も低下せず、その剥離等もなく、結露の発生を抑止
し、また結露条件から開放されると塗膜は直ちに復元
し、長期間結露防止性能は全く低下することがなく、併
せてカビ防止能力も付与することができる。As described above, the anti-condensation agent according to the present invention is only applied thinly on the dew condensation-occurring portion, and even under severe dew condensation conditions, the coating film does not excessively swell and the strength of the coating film is high. It does not deteriorate, does not peel off, etc., and prevents the formation of dew condensation.When released from dew condensation conditions, the coating film immediately restores, and the long-term dew condensation prevention performance does not deteriorate at all, and it also has a fungicide prevention ability. Can also be given.
【図1】結露試験装置の概略説明図である。FIG. 1 is a schematic explanatory diagram of a dew condensation test apparatus.
【図2】試験片の結露発生状態を示す線図である。FIG. 2 is a diagram showing a state where dew condensation occurs on a test piece.
【図3】試験片の結露発生状態を示す線図である。FIG. 3 is a diagram showing a state where dew condensation occurs on a test piece.
【図4】試験片の結露発生状態を示す線図である。FIG. 4 is a diagram showing a dew condensation state of a test piece.
A 低温恒温槽 B 恒温恒湿槽 C 連通開口 D 電子天秤 P 試験片 A low temperature constant temperature bath B constant temperature constant humidity chamber C communication opening D electronic balance P test piece
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 FI 技術表示箇所 C09D 131/04 PFU 183/04 PMS ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Office reference number FI technical display location C09D 131/04 PFU 183/04 PMS
Claims (3)
マルジョン又は酢酸ビニル系合成樹脂エマルジョンもし
くはこれら両系の共重合体エマルジョンと、フッ素系合
成樹脂エマルジョン又はシリコーン系合成樹脂エマルジ
ョンとを主成分としたことを特徴とする結露防止剤。1. A main component of a super absorbent polymer, an acrylic synthetic resin emulsion, a vinyl acetate synthetic resin emulsion or a copolymer emulsion of these two systems, and a fluorine synthetic resin emulsion or a silicone synthetic resin emulsion. An anti-condensation agent characterized in that
て、高吸水性樹脂を2〜4部、アクリル系合成樹脂エマ
ルジョン又は酢酸ビニル系合成樹脂エマルジョンもしく
はこれら両系の共重合体エマルジョンを5〜7部、フッ
素系合成樹脂エマルジョン又はシリコーン系合成樹脂エ
マルジョンを0.5〜1.5部とした請求項1記載の結
露防止剤。2. As a dry weight ratio of the active ingredient of the main component, 2 to 4 parts of super absorbent polymer, 5 to 5 parts of acrylic synthetic resin emulsion or vinyl acetate synthetic resin emulsion or copolymer emulsion of both these systems. The anti-condensation agent according to claim 1, wherein 7 parts, 0.5 to 1.5 parts of the fluorine-based synthetic resin emulsion or the silicone-based synthetic resin emulsion is used.
又は2記載の結露防止剤。3. An antibacterial agent is added to the main component.
Or the dew condensation preventing agent according to 2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP33225692A JPH0819398B2 (en) | 1992-11-19 | 1992-11-19 | Anti-condensation agent |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP33225692A JPH0819398B2 (en) | 1992-11-19 | 1992-11-19 | Anti-condensation agent |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH06158032A JPH06158032A (en) | 1994-06-07 |
JPH0819398B2 true JPH0819398B2 (en) | 1996-02-28 |
Family
ID=18252921
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP33225692A Expired - Lifetime JPH0819398B2 (en) | 1992-11-19 | 1992-11-19 | Anti-condensation agent |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0819398B2 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3758693B2 (en) * | 1994-09-30 | 2006-03-22 | ジャパンゴアテックス株式会社 | Humidifying membrane and process for producing the same |
JP3606614B2 (en) * | 1994-10-13 | 2005-01-05 | ジャパンゴアテックス株式会社 | Humidification sheet and humidification unit |
JP3758695B2 (en) * | 1994-11-24 | 2006-03-22 | ジャパンゴアテックス株式会社 | humidifier |
JP3524659B2 (en) * | 1995-12-20 | 2004-05-10 | 三井化学株式会社 | Highly functional styrenic resin film or sheet |
JPH10310740A (en) * | 1997-05-13 | 1998-11-24 | Toto Ltd | Planing coating composition and member having planing surface |
JP2013209362A (en) * | 2012-02-28 | 2013-10-10 | Nippon Valqua Ind Ltd | Antibacterial material containing zinc oxide |
JP6674558B2 (en) | 2016-04-20 | 2020-04-01 | ダウ シリコーンズ コーポレーション | Lithium alkylsiliconate composition, coating film, and method for producing the same |
JP2020007453A (en) * | 2018-07-09 | 2020-01-16 | 東日本旅客鉄道株式会社 | Dew condensation dripping suppression coating |
-
1992
- 1992-11-19 JP JP33225692A patent/JPH0819398B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH06158032A (en) | 1994-06-07 |
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