JPH0369384B2 - - Google Patents
Info
- Publication number
- JPH0369384B2 JPH0369384B2 JP7271585A JP7271585A JPH0369384B2 JP H0369384 B2 JPH0369384 B2 JP H0369384B2 JP 7271585 A JP7271585 A JP 7271585A JP 7271585 A JP7271585 A JP 7271585A JP H0369384 B2 JPH0369384 B2 JP H0369384B2
- Authority
- JP
- Japan
- Prior art keywords
- silane
- inorganic
- binder
- ratio
- composition
- 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
Links
- 239000000203 mixture Substances 0.000 claims description 21
- 229910000077 silane Inorganic materials 0.000 claims description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 239000011230 binding agent Substances 0.000 claims description 8
- 239000002002 slurry Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 6
- -1 silane compound Chemical class 0.000 claims description 5
- 239000008119 colloidal silica Substances 0.000 claims description 4
- 239000007795 chemical reaction product Substances 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 14
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 239000000377 silicon dioxide Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 238000001723 curing Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 150000004756 silanes Chemical class 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
- Silicon Polymers (AREA)
Description
〔産業上の利用分野〕
本発明は、すぐれた長期保存性とコントロール
されたチクソトロピー性をもち作業性のよい無機
系の水性スラリー状組成物で、比較的低温で熱硬
化することにより耐熱性で耐薬品性、耐沸とう水
性などのすぐれたクラツクのない無機系被膜を提
供する無機系組成物用のバインダーに関する。本
発明による無機系組成物はコーテイング剤や充填
剤として利用される。
〔従来の技術〕
従来、部分加水分解したシラン化合物とコロイ
ダルシリカとの反応生成物をバインダーとして、
これにシリカ、アルミナ、ジルコニアなどの無機
粉体を配合した無機系組成物は公知であり、シラ
ン化合物として下記一般式
RSi（OR′）3
（式中、Ｒは−CH3または
[Industrial Field of Application] The present invention is an inorganic aqueous slurry composition that has excellent long-term storage stability, controlled thixotropy, and good workability. This invention relates to a binder for inorganic compositions that provides crack-free inorganic coatings with excellent chemical resistance and boiling water resistance. The inorganic composition according to the present invention is used as a coating agent or a filler. [Prior Art] Conventionally, a reaction product of a partially hydrolyzed silane compound and colloidal silica is used as a binder.
Inorganic compositions containing inorganic powders such as silica, alumina, and zirconia are well known, and as silane compounds, they have the following general formula RSi(OR') 3 (wherein, R is -CH 3 or
本発明の目的は上記の欠点を改良し、これらの
無機系組成物のもつすぐれた耐熱性及びすぐれた
耐薬品性の特長を生かす新規な無機系組成物バイ
ンダーを提供することにある。
〔発明の構成〕
本発明は、前述したシランＡまたはＢに、一般
式
R″2Si（OR′）2
（式中、R′は−CH3または−C2H5を表し、そし
てR″は−CH3を表す）で示されるシラン化合物、
例えば（CH3）2Si（OCH3）2（以下シランＣという）
を、ある特定の比率で混合して用いることによ
り、上記の従来品の欠点が解決されることを発見
したことに基づくものである。
ここで、シランＣを単独で用いた場合に生じる
欠点としては、
(1) 加熱硬化膜が軟らかくなりすぎる。
(2) 加熱硬化に長時間を要する。
などが挙げられるが、これらの欠点は上記シラン
ＡまたはＢと併用することによつて解決されるこ
とが見い出された。
本発明において、シランＡまたはシランＢとシ
ランＣとの混合比は、重量比で９：１〜１：９の
範囲が好ましく、この範囲を越えると、それぞれ
のシランを単独で用いた場合に生じる欠点が出現
するため好ましくない。
〔実施例〕
以下に本発明を実施例によりさらに詳細に説明
する。
実施例 １
酢酸３ｇを溶解した純水30ｇに、シランＡとシ
ランＣの混合物（下記第１表に示す組成比）100
ｇを加え、室温にて５〜15分反応させて部分加水
分解シラン化合物をえた。次いで、これにコロイ
ダルシリカ（SiO2として21wt％含有）水溶液250
ｇを加え、室温で５〜30分間反応させて無機系組
成物バインダーをえた。これに、平均粒径約20μ
ｍのシリカ粉末400ｇ、約10μｍのシリカ粉末100
ｇ及びアルミナ粉末（平均粒径約5μｍ）100ｇを
メタノール50ｇとともに加え、混合物を２〜４日
間静置させて無機系スラリー状組成物No.１〜７を
えた。
スラリーの安定性、塗膜（鉄板上に約２mm厚に
コーテイングし、室温乾燥12時間ののち160℃で
硬化）の硬化速度、耐熱性、外観観察（クラツク
発生の有無、等）などの評価を行つた。結果を第
１表に示す。
実施例 ２
実施例１のシランＡの代わりにシランＢを用
い、実施例１と同様にして無機系スラリー状組成
物No.８〜13をえた。このスラリーの安定性、硬化
性、硬化塗膜特性を評価し、その結果を第２表に
示した。
実施例１及び実施例２から明らかなように、部
分加水分解シランとしてシランＡ／シランＣ及び
シランＢ／シランＣの混合物でその重量比が９／
１〜１／９のものを用いることにより諸特性のバ
ランスのとれた無機系組成物バインダー、及びそ
れを利用した無機系スラリー組成物がえられる。
実施例 ３
実施例１の無機系スラリー状組成物No.４に用い
たシランＡ／シランＢ混合物（１／１重量比）の
加水分解生成物とコロイダルシリカの反応生成物
である無機系バインダー組成物のみ（シリカやア
ルミナなどの粉末を除いた系）を鉄板にコーテイ
ングしたところ透明均一な連続被膜が形成され
た。これを160℃で20分間加熱して硬化させると、
600℃に加熱しても塗膜にワレ、ハクリ、変色を
生ぜず、すぐれた耐熱性の被膜がえられた。
また、この被膜は、沸とう水に１時間浸漬して
もハクリやワレを生ぜず、撥水性を維持してい
た。また、トリクレン、アルコール、ガソリンな
どの有機溶剤に一週間常温で浸漬しても何らの変
化も生ぜず、すぐれた耐熱性、耐沸とう水性、耐
薬品性を有していた。
The object of the present invention is to improve the above-mentioned drawbacks and provide a new inorganic composition binder that takes advantage of the excellent heat resistance and chemical resistance of these inorganic compositions. [Structure of the Invention] The present invention provides that the above-mentioned silane A or B has the general formula R″ 2 Si(OR′) 2 (wherein R′ represents −CH 3 or −C 2 H 5 , and R″ represents -CH3 ), a silane compound represented by
For example, (CH 3 ) 2 Si(OCH 3 ) 2 (hereinafter referred to as silane C)
This is based on the discovery that the above-mentioned drawbacks of conventional products can be solved by mixing them in a specific ratio. Here, the disadvantages that occur when Silane C is used alone are: (1) The heat-cured film becomes too soft. (2) Heat curing takes a long time. It has been found that these drawbacks can be solved by using the above-mentioned silane A or B in combination. In the present invention, the mixing ratio of silane A or silane B and silane C is preferably in the range of 9:1 to 1:9 by weight. This is not preferable because it causes defects. [Example] The present invention will be explained in more detail below with reference to Examples. Example 1 A mixture of silane A and silane C (composition ratio shown in Table 1 below) was added to 30 g of pure water in which 3 g of acetic acid was dissolved.
g was added thereto and reacted at room temperature for 5 to 15 minutes to obtain a partially hydrolyzed silane compound. Next, a 250% aqueous solution of colloidal silica (containing 21wt% as SiO 2 ) was added to this.
g was added and reacted at room temperature for 5 to 30 minutes to obtain an inorganic composition binder. In addition, the average particle size is about 20μ
400g of silica powder, 100g of silica powder of about 10μm
g and 100 g of alumina powder (average particle size of about 5 μm) were added together with 50 g of methanol, and the mixture was allowed to stand for 2 to 4 days to obtain inorganic slurry compositions Nos. 1 to 7. We evaluated the stability of the slurry, the curing speed of the coating film (coating approximately 2 mm thick on a steel plate, drying at room temperature for 12 hours, and curing at 160°C), heat resistance, and appearance observation (presence of cracks, etc.). I went. The results are shown in Table 1. Example 2 Inorganic slurry compositions Nos. 8 to 13 were obtained in the same manner as in Example 1 except that Silane B was used in place of Silane A in Example 1. The stability, curability, and cured coating properties of this slurry were evaluated, and the results are shown in Table 2. As is clear from Examples 1 and 2, the partially hydrolyzed silanes were mixtures of silane A/silane C and silane B/silane C in a weight ratio of 9/9.
By using one having a ratio of 1 to 1/9, an inorganic composition binder with well-balanced properties and an inorganic slurry composition using the same can be obtained. Example 3 An inorganic binder composition that is a reaction product of the hydrolysis product of the silane A/silane B mixture (1/1 weight ratio) used in inorganic slurry composition No. 4 of Example 1 and colloidal silica. When we coated an iron plate with only the material (without powders such as silica and alumina), a transparent, uniform, continuous film was formed. When this is heated at 160℃ for 20 minutes to harden it,
Even when heated to 600℃, the coating did not crack, peel, or discolor, and a coating with excellent heat resistance was obtained. Further, this film did not peel or crack even after being immersed in boiling water for 1 hour, and maintained its water repellency. Moreover, no change occurred even when immersed in organic solvents such as tricrene, alcohol, and gasoline for one week at room temperature, and the material had excellent heat resistance, boiling water resistance, and chemical resistance.
【表】【table】
【表】
あり、×は撥水性が失われたことを示す。
[Table] Yes, × indicates loss of water repellency.
Claims (1)
シリカの反応生成物をバインダーとし、これに無
機粉体を加えてなる水または水と低級アルコール
混合物系スラリー状組成物において、シラン化合
物として下記一般式 RSi（OR′）3 （式中、Ｒは−CH3または 【式】 を表し、そしてR′は−CH3または−C2H5を表す）
で示される化合物、及び下記の一般式 R″2Si（OR′）2 （式中、R′は−CH3または−C2H5を表し、そし
てR″は−CH3を表す）で示される化合物を９：
１〜１：９（重量比）で混合して用いることを特
徴とする無機系組成物バインダー。[Scope of Claims] 1. In a slurry composition based on water or a mixture of water and lower alcohol, which is made by using a reaction product of a partially hydrolyzed silane compound and colloidal silica as a binder and adding an inorganic powder to this, as a silane compound. The following general formula RSi(OR') 3 (in the formula, R represents -CH 3 or [formula], and R' represents -CH 3 or -C 2 H 5 )
and the following general formula R″ 2 Si(OR′) 2 (wherein R′ represents −CH 3 or −C 2 H 5 and R″ represents −CH 3 ). 9 compounds:
An inorganic composition binder characterized in that it is used by mixing at a ratio of 1 to 1:9 (weight ratio).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7271585A JPS61233065A (en) | 1985-04-08 | 1985-04-08 | Inorganic composition binder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7271585A JPS61233065A (en) | 1985-04-08 | 1985-04-08 | Inorganic composition binder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61233065A JPS61233065A (en) | 1986-10-17 |
| JPH0369384B2 true JPH0369384B2 (en) | 1991-10-31 |
Family
ID=13497323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7271585A Granted JPS61233065A (en) | 1985-04-08 | 1985-04-08 | Inorganic composition binder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61233065A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01172473A (en) * | 1987-12-28 | 1989-07-07 | Toshiba Silicone Co Ltd | Coating composition |
| US5985790A (en) * | 1994-12-07 | 1999-11-16 | Project Earth Industries, Inc. | Method of making acid contacted enhanced aluminum oxide adsorbent particle |
| US6342191B1 (en) | 1994-12-07 | 2002-01-29 | Apyron Technologies, Inc. | Anchored catalyst system and method of making and using thereof |
| US5948726A (en) * | 1994-12-07 | 1999-09-07 | Project Earth Industries, Inc. | Adsorbent and/or catalyst and binder system and method of making therefor |
| US5955393A (en) * | 1995-04-21 | 1999-09-21 | Project Earth Industries, Inc. | Enhanced adsorbent and room temperature catalyst particle and method of making therefor |
| KR100381717B1 (en) * | 1995-12-29 | 2003-08-14 | 고려화학 주식회사 | Method for preparing ceramic binder |
| JP5393107B2 (en) * | 2007-12-25 | 2014-01-22 | 日東電工株式会社 | Silicone resin composition |
| JP6227700B2 (en) * | 2016-04-18 | 2017-11-08 | 株式会社トウペ | Silicone resin composition and painted product |
-
1985
- 1985-04-08 JP JP7271585A patent/JPS61233065A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61233065A (en) | 1986-10-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |