JPH0718202A - Coating material and binder composed mainly of aqueous solution of alkali metal silicate - Google Patents
Coating material and binder composed mainly of aqueous solution of alkali metal silicateInfo
- Publication number
- JPH0718202A JPH0718202A JP19172493A JP19172493A JPH0718202A JP H0718202 A JPH0718202 A JP H0718202A JP 19172493 A JP19172493 A JP 19172493A JP 19172493 A JP19172493 A JP 19172493A JP H0718202 A JPH0718202 A JP H0718202A
- Authority
- JP
- Japan
- Prior art keywords
- aqueous solution
- water
- coating film
- alkali metal
- metal silicate
- 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
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、水ガラスとして知られ
ているアルカリ金属ケイ酸塩の水溶液を主成分としなが
ら、水不溶性で適度の結合強度を有する耐水性の著しく
改善されたガラス質を形成するコーティング材料とバイ
ンダーに関するものである。本発明のコーティング材料
及びバインダーは、不燃性で耐水性の優れた高硬度のガ
ラス質硬化体を容易に形成する。従って、本発明のコー
ティング材料は、耐炎性の高硬度コーティング材料（塗
料）として、金属、合成樹脂、ガラス、木材、石膏、セ
メント等への表面被覆に用いて好適である。また、本発
明のバインダーは、ケイ砂、粘土、アスベスト、パーラ
イトなどの骨材成形用のバインダーに用いて好適であ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a glass material having a water-insoluble, moderately strong bond strength and significantly improved water resistance, which is mainly composed of an aqueous solution of an alkali metal silicate known as water glass. It relates to a coating material and a binder to be formed. The coating material and binder of the present invention easily form a non-flammable, highly hardened vitreous cured product having excellent water resistance. Therefore, the coating material of the present invention is suitable as a flame-resistant high-hardness coating material (paint) for surface coating on metals, synthetic resins, glass, wood, gypsum, cement and the like. Further, the binder of the present invention is suitable for use as a binder for forming aggregates such as silica sand, clay, asbestos and perlite.
【０００２】[0002]
【従来の技術】従来、水ガラスとして知られている水溶
性アルカリ金属ケイ酸塩の水溶液は乾燥すると密着性に
優れた高硬度のガラス質塗膜を形成することから、安価
な無機質塗料や、段ボール、紙管等の接着剤として使用
される他、土壌硬化剤、鋳物砂のバインダーや耐火モル
タル等の粘結剤として古くから使用されてきた。しか
し、水ガラスから形成されたガラス質塗膜は、元来、水
溶性で湿気に対しても抵抗性がないなど耐水性に問題が
あった。また、古くから多量に使用されている通常の水
ガラスは強アルカリ性であるため、十分乾燥した塗膜で
も空気中の湿気、炭酸ガスを吸収して塗膜が白化するい
わゆるエフロレッセンスeffloresnce（白華現象）を起
こし外観を著しく損なう欠点を有する。2. Description of the Related Art Conventionally, an aqueous solution of a water-soluble alkali metal silicate known as water glass forms a highly hard vitreous coating film having excellent adhesion when dried, so that an inexpensive inorganic coating or In addition to being used as an adhesive for corrugated boards, paper tubes, etc., it has been used for a long time as a soil hardening agent, a binder for foundry sand, and a binder for refractory mortar. However, the vitreous coating film formed from water glass originally has a problem in water resistance such as water solubility and no resistance to moisture. In addition, since ordinary water glass, which has been used in large quantities since ancient times, is strongly alkaline, so-called efflorescence effloresnce (white flower), in which even a well-dried coating film absorbs moisture and carbon dioxide in the air to whiten the coating film. Phenomenon) and the appearance is significantly impaired.
【０００３】これらの問題点に対処する方法として、水
ガラスの乾燥皮膜の表面を酢酸やリン酸、希薄な硝酸等
で中和したり、水溶性のアンモニウム塩の水溶液を塗膜
面に接触させる方法などが公知となっているが、いずれ
も処理に長時間を要したり、水洗を必要とするなど作業
性に問題があった。また、硬化剤として亜鉛末などの金
属やカルシウム、マグネシウム、アルミニウム等の多価
金属の金属酸化物、あるいは金属水酸化物、また、リン
酸アルミニウム、リン酸亜鉛などの２，３価金属のリン
酸塩、ホウ酸塩、ケイフッ化ナトリウム、フェロシリコ
ン、炭酸エチレン、グリオキザール、多糖類のプルラン
などを使用する方法も公知であるが、これらの硬化剤を
用いると水ガラスがゲル化するためポットライフが短く
作業性に問題がある。さらに、硬化剤の混合によって不
透明となったり、光沢性が悪く、美粧を目的としたガラ
ス質のコーテイングのためには実用性に欠ける。As a method for coping with these problems, the surface of the dry film of water glass is neutralized with acetic acid, phosphoric acid, dilute nitric acid or the like, or an aqueous solution of a water-soluble ammonium salt is brought into contact with the surface of the film. Although the methods and the like have been publicly known, all of them have problems in workability such as long processing time and washing with water. Further, as a curing agent, a metal such as zinc dust, a metal oxide of a polyvalent metal such as calcium, magnesium, and aluminum, or a metal hydroxide, and a phosphorus of a divalent and trivalent metal such as aluminum phosphate and zinc phosphate. Acid, borate, sodium fluorosilicate, ferrosilicon, ethylene carbonate, glyoxal, polysaccharides such as pullulan is also known, but when these curing agents are used, water glass gels, resulting in a pot life. Is short and there is a problem in workability. Further, it becomes opaque due to the mixing of the curing agent and has poor gloss, which is not practical for a glassy coating for the purpose of beauty.
【０００４】水ガラスを硬化させるために、水ガラスを
熱処理することも試みられてきたが、水ガラスの不溶化
温度はＳｉＯ2とＮａ2Ｏとのモル比に依存し、一般に使
用されている３号水ガラスの場合では１７０℃以上に加
熱する必要がある。しかし、１１０℃に加熱した段階で
塗膜は発泡し、塗膜には多数の泡やピンホールを生じ、
１５０℃以上に加熱すると塗膜は著しく発泡して透明性
を失い皮膜が破壊する問題点があった。Although heat treatment of water glass has been attempted to cure the water glass, the insolubilization temperature of the water glass depends on the molar ratio of SiO 2 and Na 2 O and is generally used. In the case of No. water glass, it needs to be heated to 170 ° C or higher. However, the coating film foams when heated to 110 ° C., and a large number of bubbles and pinholes are generated in the coating film,
When heated to 150 ° C. or higher, the coating film remarkably foams, loses transparency, and the coating film is broken.
【０００５】[0005]
【発明が解決しようとする課題】本発明の課題は、従来
の水溶性アルカリ金属ケイ酸塩水溶液（水ガラス）のも
つ不燃性、密着性、高硬度、高光沢性、経済性などの優
れた特性を活かしながら、水ガラスの持つ耐水性の悪
さ、空気中の炭酸ガスにより白華現象を生じるなどの欠
点を解決して、耐水性のガラス質硬化体を与えるアルカ
リ金属ケイ酸塩を含む水溶液からなるコーティング材料
及びバインダーを提供することにある。The problems of the present invention are excellent in non-combustibility, adhesiveness, high hardness, high glossiness, economical efficiency and the like of the conventional water-soluble alkali metal silicate aqueous solution (water glass). An aqueous solution containing an alkali metal silicate that gives water-resistant vitreous cured material by solving the drawbacks such as poor water resistance of water glass and whitening phenomenon caused by carbon dioxide gas in the air while taking advantage of its characteristics. To provide a coating material and a binder.
【０００６】[0006]
【課題を解決するための手段】本発明者は、前記課題を
解決すべく鋭意研究を重ねた結果、本発明を完成するに
至った。即ち、本発明によれば、式 Ｍ2Ｏ・ｎＳｉＯ2
（式中、Ｍはナトリウム及び／又はカリウムを示し、ｎ
は２．０〜４．１の数を示す）で表わされるアルカリ金
属ケイ酸塩の水溶液と、Ｌｉ2Ｏ・ｍＳｉＯ2（式中、ｍ
は４〜５の数を示す）で表わされるケイ酸リチウムの水
溶液との混合物からなり、Ｍ2Ｏ・ｎＳｉＯ2／Ｌｉ2Ｏ
・ｍＳｉＯ2モル比が１〜３の範囲にあるコーティング
材料が提供される。また、本発明によれば、式 Ｍ2Ｏ・
ｎＳｉＯ2（式中、Ｍはナトリウム及び／又はカリウム
を示し、ｎは２．０〜４．１の数を示す）で表わされる
アルカリ金属ケイ酸塩の水溶液と、Ｌｉ2Ｏ・ｍＳｉＯ2
（式中、ｍは４〜５の数を示す）で表わされるケイ酸リ
チウムの水溶液との混合物からなり、Ｍ2Ｏ・ｎＳｉＯ2
／Ｌｉ2Ｏ・ｍＳｉＯ2モル比が１〜３の範囲にあるバイ
ンダーが提供される。The present inventor has completed the present invention as a result of intensive studies to solve the above-mentioned problems. That is, according to the present invention, the formula M 2 O.nSiO 2
(In the formula, M represents sodium and / or potassium, and n
Represents a number of 2.0 to 4.1) and an aqueous solution of an alkali metal silicate represented by the formula: Li 2 O · mSiO 2 (in the formula, m
Represents a number of 4 to 5) and is mixed with an aqueous solution of lithium silicate represented by M 2 O.nSiO 2 / Li 2 O
A coating material having a mSiO 2 molar ratio in the range of 1 to 3 is provided. Also according to the invention, the formula M 2 O.
An aqueous solution of an alkali metal silicate represented by nSiO 2 (wherein M represents sodium and / or potassium, and n represents a number of 2.0 to 4.1), and Li 2 O · mSiO 2
(In the formula, m represents a number of 4 to 5), which is composed of a mixture with an aqueous solution of lithium silicate represented by M 2 O · nSiO 2
A binder having a molar ratio of / Li 2 O · mSiO 2 in the range of 1 to 3 is provided.
【０００７】前述のように、水ガラスを用いた塗膜の不
溶化の方法としては、酸化亜鉛や亜鉛末、リン酸カルシ
ウムなどの硬化剤の添加や、塗膜形成後に高温での熱処
理、表面のアルカリを希薄な酸で中和したり、アンモニ
ウム塩水溶液中で長時間浸漬する方法などが提案されて
いるが、水ガラスの貯蔵中でのゲル化の問題、高温熱処
理に際しての発泡やピンホールの生成など作業性に大き
な問題があった。また、これらの方法では一般に光沢の
ある透明性の膜の形成は困難であった。本発明によれ
ば、これらの問題のないコーティング材料及びバインダ
ーが提供される。As described above, as a method of insolubilizing a coating film using water glass, addition of a curing agent such as zinc oxide, zinc dust, calcium phosphate, heat treatment at a high temperature after forming the coating film, and surface alkali treatment Methods such as neutralization with a dilute acid or immersion in an ammonium salt solution for a long time have been proposed, but problems with gelation during storage of water glass, foaming and pinhole formation during high temperature heat treatment, etc. There was a big problem in workability. Further, it is generally difficult to form a glossy transparent film by these methods. The present invention provides coating materials and binders that do not suffer from these problems.
【０００８】本発明によるコーティング材料及びバイン
ダーは、以下に示す組成式で表わされるアルカリ金属ケ
イ酸塩の水溶液Ａと、ケイ酸リチウムの水溶液Ｂの混合
液からなる。 Ｍ2Ｏ・ｎＳｉＯ2 （１） 前記式中、Ｍはナトリウム、カリウム又はナトリウムと
カリウムの混合物を示す。ｎは２．０〜４．１の数を示
す。 Ｌｉ2Ｏ・ｍＳｉＯ2 （２） 前記式中、ｍは４〜５の数を示す。前記したＳｉＯ2／
Ｍ2Ｏモル比が前記範囲より小さくなると、得られる固
形物はこれを１１０〜１５０℃の低温で熱処理したとき
に、耐水性のある性状の良い硬化体とすることができな
い。一方、前記したＳｉＯ2／Ｍ2Ｏモル比が前記範囲よ
り大きくなると、基材に対する密着性と造膜性が低下
し、その硬化体が材料から剥離しやすくなる。また、水
溶液Ａと水溶液Ｂとの混合割合は、Ｍ2Ｏ・ｎＳｉＯ2／
Ｌｉ2Ｏ・ｍＳｉＯ2モル比が０．９７〜３．４０、好ま
しくは１〜３の範囲になる割合である。この範囲を逸脱
すると、品質の良いコーティング材料及びバインダーを
得ることができない。The coating material and the binder according to the present invention are composed of a mixed solution of an aqueous solution A of an alkali metal silicate represented by the following composition formula and an aqueous solution B of lithium silicate. M 2 O · nSiO 2 (1) In the above formula, M represents sodium, potassium or a mixture of sodium and potassium. n shows the number of 2.0-4.1. Li 2 O · mSiO 2 (2) In the above formula, m represents a number of 4 to 5. SiO 2 /
When the M 2 O molar ratio is smaller than the above range, the solid obtained cannot be a cured product having water resistance and good properties when heat-treated at a low temperature of 110 to 150 ° C. On the other hand, when the above-mentioned SiO 2 / M 2 O molar ratio is larger than the above range, the adhesion to the substrate and the film-forming property are deteriorated, and the cured product thereof is easily separated from the material. The mixing ratio of the aqueous solution A and the aqueous solution B is M 2 O · nSiO 2 /
The Li 2 O · mSiO 2 molar ratio is in the range of 0.97 to 3.40, preferably 1 to 3. Outside this range, good quality coating materials and binders cannot be obtained.
【０００９】本発明のコーティング材料を用いて基材表
面に塗膜を形成させるには、基材表面に本発明のコーテ
ィング材料を塗布乾燥した後、基材表面に形成された乾
燥塗膜を熱処理すればよい。基材表面に塗布した塗布物
の乾燥は、自然乾燥で行うことができる他、１００℃以
下の温度の加熱により行うことができる。また、塗布物
の乾燥後に行う熱処理は、１１０〜１５０℃、好ましく
は１２０〜１３０℃であり、その処理時間は５〜３０分
程度で十分である。このようにして基材表面に対し、耐
水性を有するとともに、亀裂及び白華現象のない、密着
性にすぐれた塗膜を形成させることができる。基材とし
ては、各種の固体物質、例えば、金属、セラミック、プ
ラスチック、木材等が挙げられる。コーティング方法と
しては、スプレー、ローラーコート、刷毛塗り、コテ塗
り等の各種の方法が採用される。コーティング材料に
は、必要に応じ、粉末状のシリカや、アルミナ、タルク
等の充填剤を適量添加することもできる。To form a coating film on the surface of a substrate using the coating material of the present invention, the coating material of the present invention is applied and dried on the surface of the substrate, and then the dried coating film formed on the surface of the substrate is heat treated. do it. The coating material applied to the surface of the base material can be dried by natural drying or by heating at a temperature of 100 ° C. or lower. The heat treatment performed after drying the coated material is 110 to 150 ° C., preferably 120 to 130 ° C., and the treatment time is about 5 to 30 minutes. In this way, it is possible to form a coating film which is water-resistant and has excellent adhesion to the surface of the base material, and which is free from cracks and whitening phenomena. Examples of the substrate include various solid substances such as metals, ceramics, plastics and wood. As a coating method, various methods such as spraying, roller coating, brush coating, and iron coating are adopted. If necessary, a suitable amount of powdered silica or a filler such as alumina or talc can be added to the coating material.
【００１０】本発明のバインダーを用いるには、例え
ば、本発明のバインダーを、石粉、ガラス粉、粘土、プ
ラスチック粉等の骨材と混練し、得られた混練物を所要
形状に成形した後、常温〜１００℃で乾燥し、次いで１
２０〜１５０℃の温度で加熱すればよい。このようにし
て本発明のバインダーを含む耐水性の成形物を得ること
ができる。この場合、成形物を１７０℃以上に加熱する
と、多孔質の軽石状の成形物を得ることができる。ま
た、本発明のバインダーは、木材や、石こう、セメン
ト、アスベスト等の固体物質に含浸させて用いることが
できる。To use the binder of the present invention, for example, the binder of the present invention is kneaded with aggregates such as stone powder, glass powder, clay, and plastic powder, and the resulting kneaded product is molded into a desired shape. Dry at room temperature to 100 ° C, then 1
It may be heated at a temperature of 20 to 150 ° C. Thus, a water resistant molded product containing the binder of the present invention can be obtained. In this case, if the molded product is heated to 170 ° C. or higher, a porous pumice-shaped molded product can be obtained. Further, the binder of the present invention can be used by impregnating wood or a solid substance such as gypsum, cement, asbestos.
【００１１】[0011]
【実施例】次に本発明を実施例によりさらに詳細に説明
する。EXAMPLES Next, the present invention will be described in more detail by way of examples.
【００１２】実施例１ ５０ｍｌの三角フラスコ中で富士化学製ＪＩＳ規格３号
水ガラス（ＳｉＯ2：２８〜３０％、Ｎａ2Ｏ：９〜１０
％、ＳｉＯ2／Ｎａ2Ｏモル比：３．１〜３．３、残り水
分）１０ｇに日産化学株式会社製ケイ酸リチウム水溶液
ＬＳＳ−４５（ＳｉＯ2：２２％、Ｌｉ2Ｏ：２．２％、
ＳｉＯ2／Ｌｉ2Ｏモル比：４．５、残り水分）５ｇを混
合したものを透明な並板硝子表面に塗布し、自然乾燥後
ホットプレート上で塗膜表面の温度を１２０〜１４０℃
に５分から１０分加熱処理を行った。形成された塗膜は
高光沢性で、透明性のある密着性の良いガラス質の塗膜
で膜の硬度は非常に高く、寺田式微小硬度計（ＳＭ−２
型）によるヌープ硬度はＫＨ＝３１６で耐擦傷性に優れ
ている。また、塗膜を水中に１カ月以上浸漬しても表面
の状態に変化が見られず、水ガラス塗膜の欠点であった
耐水性が著しく改善された。また、塗膜を２カ月以上放
置したが炭酸ガス吸収による白華（エフロレッセンス）
現象は見られなかった。Example 1 Fuji Chemical JIS No. 3 water glass (SiO2: 28-30%, Na2 O: 9-10) in a 50 ml Erlenmeyer flask.
%, SiO 2 / Na 2 O molar ratio: 3.1 to 3.3, residual water content: 10 g, Nissan Chemical Co., Ltd. lithium silicate aqueous solution LSS-45 (SiO 2 : 22%, Li 2 O: 2.2). %,
A mixture of 5 g of SiO 2 / Li 2 O molar ratio: 4.5, residual water content) was applied to the surface of a transparent parallel plate glass, and after natural drying, the temperature of the coating film surface was 120 to 140 ° C. on a hot plate.
Was heat-treated for 5 to 10 minutes. The formed coating film has high gloss, is a vitreous coating film that is transparent and has good adhesion, and the hardness of the film is very high. The Terada micro hardness tester (SM-2
The Knoop hardness according to the mold is KH = 316, which is excellent in scratch resistance. Further, even if the coating film was immersed in water for 1 month or more, no change in the surface condition was observed, and the water resistance, which was a drawback of the water glass coating film, was remarkably improved. In addition, the coating film was left for 2 months or more, but white flower (eflorescence) due to carbon dioxide absorption
No phenomenon was seen.
【００１３】比較例１ 実施例１において、自然乾燥もしくは１００℃以下で強
制乾燥しただけの塗膜も表面硬度はかなり高くヌープ硬
度ＫＨ＝２３７でガラス質の密着性の良い高光沢性の塗
膜であった。しかし、塗膜を水中に浸漬するとすぐに表
面は剥離し、塗膜は完全に溶解した。また、この塗膜は
１カ月くらい放置しておくと周辺部から徐々に塗膜が白
華して最終的には白色不透明になった。また、塗膜を１
７０℃以上に加熱すると塗膜面に気泡が多数発生して発
泡体状となり、この塗膜面は水中で完全に溶解した。Comparative Example 1 In Example 1, the surface hardness of the coating film which was either naturally dried or forcibly dried at 100 ° C. or lower was considerably high, and the Knoop hardness was KH = 237, which was a vitreous and highly glossy coating film. Met. However, as soon as the coating film was immersed in water, the surface was peeled off and the coating film was completely dissolved. Further, when this coating film was left to stand for about one month, the coating film gradually whitened from the periphery and finally became white and opaque. Also, the coating film 1
When heated to 70 ° C. or higher, many bubbles were generated on the surface of the coating film to form a foam, and the surface of the coating film was completely dissolved in water.
【００１４】実施例２ 実施例１と同様に３号水ガラス１０ｇとケイ酸リチウム
溶液（ＬＳＳ−４５）５ｇを混合してなる水ガラス系
に、さらに濡れ性改善のため０．５ｇのグリセリンを添
加してなる均一に溶解した組成液を鋳鉄や鋼板、ガラス
板、木材、アルミ板、スレート板等に塗布し自然乾燥を
行った。形成された塗膜は密着性がよく無色透明性の光
沢性の良いものであったが、耐水性は無く、また、グリ
セリンを含有するため塗膜の硬度はヌープ硬度ＫＨ＝１
９であった。この塗膜を１２０℃から１４０℃に加熱す
ると密着性は変わらずヌープ硬度が約１０倍上昇してＫ
Ｈ＝１５６の透明性と光沢性の良いガラス質の耐水性を
有する塗膜に変化した。Example 2 As in Example 1, a water glass system prepared by mixing 10 g of No. 3 water glass and 5 g of lithium silicate solution (LSS-45) was further added with 0.5 g of glycerin for improving wettability. The uniformly dissolved composition liquid added was applied to cast iron, steel plate, glass plate, wood, aluminum plate, slate plate, etc. and naturally dried. The formed coating film had good adhesion and was colorless and transparent and had good glossiness, but it had no water resistance, and since it contained glycerin, the hardness of the coating film was Knoop hardness KH = 1.
It was 9. When this coating film is heated from 120 ° C to 140 ° C, the adhesion does not change and the Knoop hardness increases about 10 times and K
It changed into a coating film having a transparency of H = 156 and a glassy water resistance with good gloss.
【００１５】実施例３ 実施例１と同様に５０ｍｌの三角フラスコ中で、３号ケ
イ酸ソーダ１０ｇにケイ酸リチウム水溶液ＬＳＳ−４５
の１０ｇを混合した水ガラス混合系をガラス板等に塗布
し、自然乾燥後、１００〜１２０℃で５〜１０分熱処理
すると耐水性のある透明なガラス質の塗膜が形成され
た。Example 3 As in Example 1, in a 50 ml Erlenmeyer flask, 10 g of sodium silicate No. 3 was added to an aqueous solution of lithium silicate LSS-45.
A water-glass mixed system prepared by mixing 10 g of the above was applied to a glass plate or the like, naturally dried, and then heat-treated at 100 to 120 ° C. for 5 to 10 minutes to form a water resistant transparent vitreous coating film.
【００１６】実施例４ 実施例１において、ＪＩＳ規格４号水ガラス（Ｓｉ
Ｏ2：２３〜２５％、Ｎａ2Ｏ：６〜７％、ＳｉＯ2／Ｎ
ａ2Ｏモル比：３．７〜３．９、残り水）８ｇとケイ酸
リチウム水溶液ＬＳＳ−４５の２ｇとの混合物を用いた
以外は同様にして実験を行った。１１０〜１３０℃の熱
処理により得られた塗膜は、高光沢性で、透明性のある
密着性の良いガラス質の塗膜で膜の硬度は非常に高く、
耐擦傷性に優れている。また、塗膜を水中に１カ月以上
浸漬しても表面の状態に変化が見られず、水ガラス塗膜
の欠点であった耐水性が著しく改善された。また、塗膜
を２カ月以上放置したが炭酸ガス吸収による白華（エフ
ロレッセンス）現象は見られなかった。Example 4 In Example 1, JIS standard No. 4 water glass (Si
O 2 : 23 to 25%, Na 2 O: 6 to 7%, SiO 2 / N
a 2 O molar ratio: 3.7 to 3.9, except for using a mixture of 2g of remaining water) 8 g and lithium silicate solution LSS-45 An experiment was conducted in the same manner. The coating film obtained by heat treatment at 110 to 130 ° C. is a vitreous coating film having high gloss, transparency and good adhesion, and the hardness of the film is very high.
Has excellent scratch resistance. Further, even if the coating film was immersed in water for 1 month or more, no change in the surface condition was observed, and the water resistance, which was a drawback of the water glass coating film, was remarkably improved. Further, the coating film was allowed to stand for 2 months or longer, but no efflorescence phenomenon due to carbon dioxide absorption was observed.
【００１７】実施例５ 実施例１において、ＪＩＳ規格１号水ガラス（Ｓｉ
Ｏ2：３６〜３８％、Ｎａ2Ｏ：１７〜１８％、ＳｉＯ2
／Ｎａ2Ｏモル比：２．０〜２．３、残り水）５ｇとケ
イ酸リチウム水溶液ＬＳＳ−４５の５ｇとの混合物を用
いた以外は同様にして実験を行った。１２０〜１３０℃
の熱処理により得られた塗膜は、高光沢性で、透明性の
ある密着性の良いガラス質の塗膜で膜の硬度は非常に高
く、耐擦傷性に優れている。また、塗膜を水中に１カ月
以上浸漬しても表面の状態に変化が見られず、水ガラス
塗膜の欠点であった耐水性が著しく改善された。また、
塗膜を２カ月以上放置したが炭酸ガス吸収による白華
（エフロレッセンス）現象は見られなかった。Example 5 In Example 1, JIS standard No. 1 water glass (Si
O 2: 36~38%, Na 2 O: 17~18%, SiO 2
/ Na 2 O molar ratio: 2.0 to 2.3, the remaining water) 5 g and the experiment was performed in the same manner except that a mixture of 5 g of a lithium silicate aqueous solution LSS-45 was used. 120-130 ℃
The coating film obtained by the heat treatment of 1. is a glassy coating film having high gloss, transparency and good adhesion, and the hardness of the film is very high and the scratch resistance is excellent. Further, even if the coating film was immersed in water for 1 month or more, no change in the surface condition was observed, and the water resistance, which was a drawback of the water glass coating film, was remarkably improved. Also,
The coating film was allowed to stand for 2 months or longer, but no efflorescence phenomenon due to carbon dioxide absorption was observed.
【００１８】実施例６ ＪＩＳ規格３号水ガラス１０ｇに、ＪＩＳ規格４号水ガ
ラス５ｇを混合したものを透明な並板硝子表面に塗布
し、自然乾燥後ホットプレート上で塗膜表面の温度を１
１０〜１３０℃に５分から１０分加熱処理を行った。形
成された塗膜は高光沢性で、透明性のある密着性の良い
ガラス質の塗膜で膜の硬度は非常に高く、寺田式微小硬
度計（ＳＭ−２型）によるヌープ硬度はＫＨ＝２９０で
耐擦傷性に優れている。また、塗膜を水中に１カ月以上
浸漬しても表面の状態に変化が見られず、水ガラス塗膜
の欠点であった耐水性が著しく改善された。また、塗膜
を２カ月以上放置したが炭酸ガス吸収による白華（エフ
ロレッセンス）現象は見られなかった。Example 6 A mixture of 10 g of JIS No. 3 water glass and 5 g of JIS No. 4 water glass was applied to the surface of a transparent parallel plate glass, and after natural drying, the temperature of the coating film surface was 1 on a hot plate.
Heat treatment was performed at 10 to 130 ° C. for 5 to 10 minutes. The formed coating film is a highly glossy, transparent and highly adherent vitreous coating film with extremely high hardness, and the Knoop hardness measured by the Terada micro hardness tester (SM-2 type) is KH = 290, excellent in scratch resistance. Further, even if the coating film was immersed in water for 1 month or more, no change in the surface condition was observed, and the water resistance, which was a drawback of the water glass coating film, was remarkably improved. Further, the coating film was allowed to stand for 2 months or longer, but no efflorescence phenomenon due to carbon dioxide absorption was observed.
【００１９】[0019]
【発明の効果】本発明のコーティング材料及びバインダ
ーを１１０〜１５０℃の低温で熱処理して得られる硬化
体は、従来広く使用されてきた３号ソーダ水ガラスから
得られる硬化体の最大の欠点である耐水性の欠如と炭酸
ガス吸収による白華現象（エフロレッセンス）を改善で
きたものである。本発明のコーティング材料から得られ
た塗膜は、水ガラス系無機塗料の特徴であるところの、
有機系塗料では得られない優れた耐候性、耐炎性、高硬
度を有するガラス質ないし琺瑯調のものである。本発明
のコーティング材料を用いることにより、木材、各種金
属、コンクリート、モルタル、アスベストスレート、天
然石材、ガラス、合成樹脂、石膏などの表面にガラス質
ないし琺瑯調の硬い塗膜を形成させることができる。ま
た、本発明のバインダーは、クレイ、セメント、アスベ
スト、砂などの各種の骨材用バインダーとして好適のも
のであり、本発明のバインダーを用いることにより、不
焼成レンガやタイルなどの成形物を容易に得ることがで
きる。The cured product obtained by heat-treating the coating material and the binder of the present invention at a low temperature of 110 to 150 ° C. is the biggest drawback of the cured product obtained from No. 3 soda water glass which has been widely used in the past. It is possible to improve the efflorescence phenomenon due to a certain lack of water resistance and carbon dioxide absorption. The coating film obtained from the coating material of the present invention is a characteristic of a water glass-based inorganic coating material,
It is a vitreous or enamel-like material with excellent weather resistance, flame resistance, and high hardness that cannot be obtained with organic paints. By using the coating material of the present invention, it is possible to form a vitreous or enamel-like hard coating film on the surface of wood, various metals, concrete, mortar, asbestos slate, natural stone, glass, synthetic resin, gypsum, etc. . Further, the binder of the present invention is suitable as a binder for various aggregates such as clay, cement, asbestos, and sand, and by using the binder of the present invention, molded articles such as unfired bricks and tiles can be easily formed. Can be obtained.
Claims (2)
リウム及び／又はカリウムを示し、ｎは２．０〜４．１
の数を示す）で表わされるアルカリ金属ケイ酸塩の水溶
液と、Ｌｉ2Ｏ・ｍＳｉＯ2（式中、ｍは４〜５の数を示
す）で表わされるケイ酸リチウムの水溶液との混合物か
らなり、Ｍ2Ｏ・ｎＳｉＯ2／Ｌｉ2Ｏ・ｍＳｉＯ2モル比
が１〜３の範囲にあるコーティング材料。1. The formula M 2 O.nSiO 2 (wherein M represents sodium and / or potassium, and n is 2.0 to 4.1).
Of water) and an aqueous solution of an alkali metal silicate represented by Li 2 O · mSiO 2 (where m is a number of 4 to 5) and a lithium silicate aqueous solution represented by , M 2 O · nSiO 2 / Li 2 O · mSiO 2 coating material having a molar ratio of 1 to 3.
リウム及び／又はカリウムを示し、ｎは２．０〜４．１
の数を示す）で表わされるアルカリ金属ケイ酸塩の水溶
液と、Ｌｉ2Ｏ・ｍＳｉＯ2（式中、ｍは４〜５の数を示
す）で表わされるケイ酸リチウムの水溶液との混合物か
らなり、Ｍ2Ｏ・ｎＳｉＯ2／Ｌｉ2Ｏ・ｍＳｉＯ2モル比
が１〜３の範囲にあるバインダー。2. The formula M 2 O.nSiO 2 (wherein M represents sodium and / or potassium, and n is 2.0 to 4.1).
Of water) and an aqueous solution of an alkali metal silicate represented by Li 2 O · mSiO 2 (where m is a number of 4 to 5) and a lithium silicate aqueous solution represented by , A binder having a M 2 O · nSiO 2 / Li 2 O · mSiO 2 molar ratio in the range of 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19172493A JPH0718202A (en) | 1993-07-05 | 1993-07-05 | Coating material and binder composed mainly of aqueous solution of alkali metal silicate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19172493A JPH0718202A (en) | 1993-07-05 | 1993-07-05 | Coating material and binder composed mainly of aqueous solution of alkali metal silicate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0718202A true JPH0718202A (en) | 1995-01-20 |
Family
ID=16279437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19172493A Pending JPH0718202A (en) | 1993-07-05 | 1993-07-05 | Coating material and binder composed mainly of aqueous solution of alkali metal silicate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0718202A (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997044379A1 (en) * | 1996-05-22 | 1997-11-27 | Hoechst Trespaphan Gmbh | Lithium and potassium copolysilicate barrier coatings |
| US5925428A (en) * | 1996-06-12 | 1999-07-20 | Hoechst Trespaphan Gmbh | Vapor barrier coating for polymeric articles |
| KR19990069897A (en) * | 1998-02-13 | 1999-09-06 | 남창우 | Oxygen blocking silicate coating solution composition and method for producing film and sheet comprising same |
| US6013128A (en) * | 1996-06-12 | 2000-01-11 | Hoechst Trespaphan Gmbh | Vapor barrier coating for polymeric articles |
| US6086991A (en) * | 1996-06-12 | 2000-07-11 | Hoechst Trespaphan Gmbh | Method of priming poly(ethylene terephthalate) articles for coating |
| KR20010064300A (en) * | 1999-12-29 | 2001-07-09 | 최병조 | Infiltrative waterproofing agent |
| US6368677B2 (en) | 1996-06-12 | 2002-04-09 | Hoechst Trespaphan Gmbh | Method of priming polyolefin articles for coating |
| US6464774B1 (en) * | 2000-01-26 | 2002-10-15 | Yukio Satoh | Surface coating material incorporating lithium silicate and sodium silicate |
| KR100644768B1 (en) * | 2004-12-24 | 2006-11-14 | (주)디피아이 홀딩스 | Concrete Surface Hardener and method of treating Concrete Surface using the same |
| JP2007239326A (en) * | 2006-03-09 | 2007-09-20 | Ryukoku Univ | Snow-melting material and its manufacturing method |
| WO2008136088A1 (en) * | 2007-04-24 | 2008-11-13 | Toyo Glass Co., Ltd. | Process for producing glass product |
| JP2011093784A (en) * | 2009-09-30 | 2011-05-12 | National Institute Of Advanced Industrial Science & Technology | Silica film, method of forming the same, silica film attached material and production method thereof |
| WO2012158001A2 (en) * | 2011-05-19 | 2012-11-22 | Kim Hee Gon | Inorganic paint composition, method for producing same, and method for forming an inorganic coating film |
| KR101275782B1 (en) * | 2011-05-19 | 2013-06-17 | 김희곤 | Inorganic coating composition and coating method using thereof |
| ES2548066A1 (en) * | 2014-04-10 | 2015-10-13 | Bsh Electrodomésticos España, S.A. | Household appliance plate with a domestic appliance base plate and a surface layer unit (Machine-translation by Google Translate, not legally binding) |
| CN108602112A (en) * | 2016-06-06 | 2018-09-28 | 新东工业株式会社 | Mold adhesive composition, mold aggregate mixture and mold |
| CN111944338A (en) * | 2019-05-16 | 2020-11-17 | 高化学株式会社 | Alkali metal silicate coating and method for producing same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS523968A (en) * | 1975-06-24 | 1977-01-12 | Sato Tetsushiyou:Kk | Process for making universal turn-buckle |
| JPS5230827A (en) * | 1975-09-04 | 1977-03-08 | Kansai Paint Co Ltd | Compositions for use in forming inorganic surface coatings |
| JPS52152930A (en) * | 1976-06-15 | 1977-12-19 | Matsushita Electric Works Ltd | Silicate binder |
| JPH05311091A (en) * | 1992-05-13 | 1993-11-22 | T S B:Kk | Water-resistant inorganic binder |
-
1993
- 1993-07-05 JP JP19172493A patent/JPH0718202A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS523968A (en) * | 1975-06-24 | 1977-01-12 | Sato Tetsushiyou:Kk | Process for making universal turn-buckle |
| JPS5230827A (en) * | 1975-09-04 | 1977-03-08 | Kansai Paint Co Ltd | Compositions for use in forming inorganic surface coatings |
| JPS52152930A (en) * | 1976-06-15 | 1977-12-19 | Matsushita Electric Works Ltd | Silicate binder |
| JPH05311091A (en) * | 1992-05-13 | 1993-11-22 | T S B:Kk | Water-resistant inorganic binder |
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997044379A1 (en) * | 1996-05-22 | 1997-11-27 | Hoechst Trespaphan Gmbh | Lithium and potassium copolysilicate barrier coatings |
| US5882798A (en) * | 1996-05-22 | 1999-03-16 | Hoechst Trespaphan Gmbh | Lithium and potassium copolysilicate barrier coatings |
| US6071624A (en) * | 1996-05-22 | 2000-06-06 | Hoechst Trespaphan Gmbh | Lithium and potassium copolysilicate barrier coatings |
| EP0900250B2 (en) † | 1996-05-22 | 2004-09-15 | Treofan Germany GmbH & Co.KG | Lithium and potassium copolysilicate barrier coatings |
| US5925428A (en) * | 1996-06-12 | 1999-07-20 | Hoechst Trespaphan Gmbh | Vapor barrier coating for polymeric articles |
| US6013128A (en) * | 1996-06-12 | 2000-01-11 | Hoechst Trespaphan Gmbh | Vapor barrier coating for polymeric articles |
| US6086991A (en) * | 1996-06-12 | 2000-07-11 | Hoechst Trespaphan Gmbh | Method of priming poly(ethylene terephthalate) articles for coating |
| US6368677B2 (en) | 1996-06-12 | 2002-04-09 | Hoechst Trespaphan Gmbh | Method of priming polyolefin articles for coating |
| KR19990069897A (en) * | 1998-02-13 | 1999-09-06 | 남창우 | Oxygen blocking silicate coating solution composition and method for producing film and sheet comprising same |
| KR20010064300A (en) * | 1999-12-29 | 2001-07-09 | 최병조 | Infiltrative waterproofing agent |
| US6464774B1 (en) * | 2000-01-26 | 2002-10-15 | Yukio Satoh | Surface coating material incorporating lithium silicate and sodium silicate |
| KR100644768B1 (en) * | 2004-12-24 | 2006-11-14 | (주)디피아이 홀딩스 | Concrete Surface Hardener and method of treating Concrete Surface using the same |
| JP2007239326A (en) * | 2006-03-09 | 2007-09-20 | Ryukoku Univ | Snow-melting material and its manufacturing method |
| WO2008136088A1 (en) * | 2007-04-24 | 2008-11-13 | Toyo Glass Co., Ltd. | Process for producing glass product |
| JP5116024B2 (en) * | 2007-04-24 | 2013-01-09 | 東洋ガラス株式会社 | Manufacturing method of glass products with improved impact resistance |
| JP2011093784A (en) * | 2009-09-30 | 2011-05-12 | National Institute Of Advanced Industrial Science & Technology | Silica film, method of forming the same, silica film attached material and production method thereof |
| WO2012158001A2 (en) * | 2011-05-19 | 2012-11-22 | Kim Hee Gon | Inorganic paint composition, method for producing same, and method for forming an inorganic coating film |
| WO2012158001A3 (en) * | 2011-05-19 | 2013-01-17 | Kim Hee Gon | Inorganic paint composition, method for producing same, and method for forming an inorganic coating film |
| KR101275782B1 (en) * | 2011-05-19 | 2013-06-17 | 김희곤 | Inorganic coating composition and coating method using thereof |
| ES2548066A1 (en) * | 2014-04-10 | 2015-10-13 | Bsh Electrodomésticos España, S.A. | Household appliance plate with a domestic appliance base plate and a surface layer unit (Machine-translation by Google Translate, not legally binding) |
| CN108602112A (en) * | 2016-06-06 | 2018-09-28 | 新东工业株式会社 | Mold adhesive composition, mold aggregate mixture and mold |
| US20190105703A1 (en) * | 2016-06-06 | 2019-04-11 | Sintokogio, Ltd. | Binder composition for molding, blended aggregate for molding, and mold |
| US10668524B2 (en) * | 2016-06-06 | 2020-06-02 | Sintokogio, Ltd. | Binder composition for molding, blended aggregate for molding, and mold |
| CN111944338A (en) * | 2019-05-16 | 2020-11-17 | 高化学株式会社 | Alkali metal silicate coating and method for producing same |
| WO2020228697A1 (en) * | 2019-05-16 | 2020-11-19 | 高化学株式会社 | Alkali metal silicate coating and preparation method thereof |
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