JPH0147418B2 - - Google Patents
Info
- Publication number
- JPH0147418B2 JPH0147418B2 JP11094883A JP11094883A JPH0147418B2 JP H0147418 B2 JPH0147418 B2 JP H0147418B2 JP 11094883 A JP11094883 A JP 11094883A JP 11094883 A JP11094883 A JP 11094883A JP H0147418 B2 JPH0147418 B2 JP H0147418B2
- Authority
- JP
- Japan
- Prior art keywords
- gypsum
- composition
- rust
- present
- plaster
- 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
- 239000010440 gypsum Substances 0.000 claims description 21
- 229910052602 gypsum Inorganic materials 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 11
- DWYMPOCYEZONEA-UHFFFAOYSA-L fluoridophosphate Chemical compound [O-]P([O-])(F)=O DWYMPOCYEZONEA-UHFFFAOYSA-L 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000011505 plaster Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 235000021317 phosphate Nutrition 0.000 description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- XGRSAFKZAGGXJV-UHFFFAOYSA-N 3-azaniumyl-3-cyclohexylpropanoate Chemical compound OC(=O)CC(N)C1CCCCC1 XGRSAFKZAGGXJV-UHFFFAOYSA-N 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- MRSMFOBRKCROGJ-UHFFFAOYSA-L [Ca++].[O-]P(F)(F)=O.[O-]P(F)(F)=O Chemical compound [Ca++].[O-]P(F)(F)=O.[O-]P(F)(F)=O MRSMFOBRKCROGJ-UHFFFAOYSA-L 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 1
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 1
- GFIKIVSYJDVOOZ-UHFFFAOYSA-L calcium;fluoro-dioxido-oxo-$l^{5}-phosphane Chemical compound [Ca+2].[O-]P([O-])(F)=O GFIKIVSYJDVOOZ-UHFFFAOYSA-L 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- DGTVXEHQMSJRPE-UHFFFAOYSA-N difluorophosphinic acid Chemical class OP(F)(F)=O DGTVXEHQMSJRPE-UHFFFAOYSA-N 0.000 description 1
- 150000004683 dihydrates Chemical class 0.000 description 1
- FXNRKXSSLJKNGH-UHFFFAOYSA-L dipotassium;fluoro-dioxido-oxo-$l^{5}-phosphane Chemical compound [K+].[K+].[O-]P([O-])(F)=O FXNRKXSSLJKNGH-UHFFFAOYSA-L 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011507 gypsum plaster Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000019837 monoammonium phosphate Nutrition 0.000 description 1
- 229940074371 monofluorophosphate Drugs 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- WKVRKSDUCURJNJ-UHFFFAOYSA-M potassium;difluorophosphinate Chemical compound [K+].[O-]P(F)(F)=O WKVRKSDUCURJNJ-UHFFFAOYSA-M 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- -1 shirasu Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 1
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 1
- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 1
- 229960004711 sodium monofluorophosphate Drugs 0.000 description 1
- 229940048086 sodium pyrophosphate Drugs 0.000 description 1
- 235000019832 sodium triphosphate Nutrition 0.000 description 1
- KBVUALKOHTZCGR-UHFFFAOYSA-M sodium;difluorophosphinate Chemical compound [Na+].[O-]P(F)(F)=O KBVUALKOHTZCGR-UHFFFAOYSA-M 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/08—Acids or salts thereof
- C04B22/16—Acids or salts thereof containing phosphorus in the anion, e.g. phosphates
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/18—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using inorganic inhibitors
- C23F11/187—Mixtures of inorganic inhibitors
- C23F11/188—Mixtures of inorganic inhibitors containing phosphates
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
本発明は防錆性能のすぐれた防錆石膏組成物に
関するものである。
従来石膏は石膏ボード、石膏プラスター等の建
材として、あるいはセメント混和剤、耐火庫材料
等の各種用途に広く使用されているが原料石膏の
殆んどはリン酸、フツ酸、チタン工業等の化学工
場から排出される所謂化学石膏であるために、そ
れ自体の有する酸性成分によつて金属との接触時
に金属をすみやかに腐食発錆する欠点を有してい
た。また、かかる石膏を石灰乳等で中和処理をお
こなつたとしても、金属の腐食は防げないもので
あつた。そのため、解決策としては石膏と接触す
る金属表面を防錆加工するとか高価である耐食性
の強い高級材質を使用する等の手段がとられてい
たのが実情であつた。
本発明者らはかかる欠点を解消するために種々
検討し本発明に到達したものであり、腐食性のつ
よい石膏をフルオロリン酸塩を加えることによつ
て非腐食性のものとすることに成功した。
即ち本発明の防錆石膏組成物は、原料石膏に対
し0.1〜５重量％のフルオロリン酸塩を含有する
ことを特徴とする石膏組成物である。
本発明に使用する原料石膏は天然石膏、化学石
膏の種類をとわず、いかなる種類のものでも使用
できる。
また、フルオロリン酸塩としてはモノフルオロ
リン酸ソーダ、モノフルオロリン酸カリ、モノフ
ルオロリン酸カルシウム、モノフルオロリン酸金
属化合物等のモノフルオロリン酸塩やジフルオロ
リン酸ソーダ、ジフルオロリン酸カリ、ジフルオ
ロリン酸カルシウム等のジフルオロリン酸塩など
が代表的なものとしてあげられるがこれらに限定
されずフルオロリン酸塩であればどんなものでも
効果があげられる。
これらのフルオロリン酸塩は上記した化合物単
独でも又は二種以上混合しても用いることができ
る。
従来より、金属表面の処理済として、防錆効果
を有するものにリン酸塩、縮合リン酸塩が知られ
ており、トリポリリン酸ソーダ、リン酸２水素ア
ンモニウム、ピロリン酸ソーダ、ヘキサメタリン
酸ソーダ等が用いられているが、これらは処理済
溶液として用いられるものであり、フルオロリン
酸塩もかかる用い方で防錆効果を有するとの提案
もある。しかるに、本発明者らの検討によれば、
腐食性を有する石膏中に、これら従来知られてい
る処理剤を添加しても全く効果を示さず、フルオ
ロリン酸塩のみが特異的に防錆効果を示すことを
見い出したものである。
本発明の防錆石膏組成物を得るには加えられる
べきフルオロリン酸塩の量は原料石膏に対して
0.1〜５重量％の範囲で用いるのが好ましい。
0.1重量％以下の添加では十分な防錆効果を与
えることができず、また５重量％以上では防錆能
はあつても純済性の点及び強度発現の点で欠点と
なるので避けるべきである。
本発明の防錆石膏組成物はこの他にいかなる成
分を含有しても差しつかえなくアスベスト、パー
ライト、シラス、セメント、ガラスセンイ、
PVA等を任意に併用して石膏系組成物とするこ
とができる。
また、フルオロリン酸塩の添加方法としては、
水溶液としても紛末のままでも良く石膏に0.1〜
５重量％添加し水を加えてスラリー化し成形する
のが一般的であるが、石膏組成物の製造方法につ
いてはこれに限定されるものではない。
次に実施例をあげて本発明を説明する。
実施例１〜７、比較例１〜８
標準混水量42％の二水半水法による湿式リン酸
α半水石膏を用いて第１表の組成に調合し、第２
表で示す量の防錆剤を添加して軽量プラスター
（比重0.7）を作成した。
The present invention relates to a rust-preventing gypsum composition with excellent rust-preventing performance. Conventionally, gypsum has been widely used as a building material such as gypsum board and gypsum plaster, and for various purposes such as cement admixture and fireproof storage material, but most of the raw material gypsum is made from chemicals such as phosphoric acid, hydrofluoric acid, and titanium industry. Since it is a so-called chemical gypsum discharged from factories, it has the disadvantage that its own acidic components cause metal to quickly corrode and rust when it comes into contact with metal. Further, even if such plaster was neutralized with milk of lime or the like, metal corrosion could not be prevented. Therefore, as a solution, measures such as applying anti-corrosion treatment to the metal surfaces that come into contact with the plaster or using expensive high-grade materials with strong corrosion resistance have been taken. The present inventors conducted various studies to solve these drawbacks and arrived at the present invention, and succeeded in making corrosive strong gypsum non-corrosive by adding fluorophosphate. did. That is, the anticorrosive gypsum composition of the present invention is a gypsum composition characterized by containing 0.1 to 5% by weight of fluorophosphate based on the raw material gypsum. The raw material gypsum used in the present invention can be any type of gypsum, including natural gypsum and chemical gypsum. In addition, examples of fluorophosphates include monofluorophosphates such as sodium monofluorophosphate, potassium monofluorophosphate, calcium monofluorophosphate, and metal monofluorophosphate compounds, sodium difluorophosphate, potassium difluorophosphate, and calcium difluorophosphate. Typical examples include difluorophosphates such as, but the present invention is not limited to these, and any fluorophosphate can be effective. These fluorophosphates can be used alone or in combination of two or more of the above compounds. Conventionally, phosphates and condensed phosphates have been known to have a rust-preventing effect as treated metal surfaces, including sodium tripolyphosphate, ammonium dihydrogen phosphate, sodium pyrophosphate, and sodium hexametaphosphate. However, these are used as treated solutions, and it has been proposed that fluorophosphates also have a rust-preventing effect when used in this way. However, according to the inventors' study,
It has been discovered that even if these conventionally known treatment agents are added to corrosive plaster, they have no effect at all, and that only fluorophosphate exhibits a specific antirust effect. To obtain the anticorrosive gypsum composition of the present invention, the amount of fluorophosphate to be added is based on the raw gypsum.
It is preferable to use it in a range of 0.1 to 5% by weight. Addition of less than 0.1% by weight will not provide sufficient rust prevention effect, and addition of more than 5% by weight will result in drawbacks in terms of purity and strength development, so it should be avoided. be. The antirust gypsum composition of the present invention may contain any other components such as asbestos, perlite, shirasu, cement, glass fiber, etc.
A gypsum-based composition can be made by optionally combining PVA or the like. In addition, the method of adding fluorophosphate is as follows:
It can be used as an aqueous solution or as a powder.
It is common to add 5% by weight of the gypsum composition and form a slurry by adding water, but the method for producing the gypsum composition is not limited to this. Next, the present invention will be explained with reference to Examples. Examples 1 to 7, Comparative Examples 1 to 8 Wet phosphoric acid alpha hemihydrate gypsum by the dihydrate and hemihydrate method with a standard water content of 42% was mixed to the composition shown in Table 1, and
A lightweight plaster (specific gravity 0.7) was prepared by adding the amount of rust preventive agent shown in the table.
【表】
この作成したプラスターについてJIS Ａ 6904
に従がう試験方法を実施し且該組成プラスターに
軟鋼試験片（約34cm3）を埋設して20日後に取り出
し重量減から侵食度を測定した。この結果を第２
表に示す。[Table] About this plaster JIS A 6904
The following test method was carried out and a mild steel specimen (approximately 34 cm 3 ) was embedded in the composition plaster and after 20 days it was taken out and the degree of erosion was determined from the weight loss. This result is the second
Shown in the table.
【表】【table】
Claims (1)
塩を配合して成る防錆石膏組成物。1. A rust-preventing gypsum composition containing 0.1 to 5% by weight of fluorophosphate based on gypsum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11094883A JPS605056A (en) | 1983-06-22 | 1983-06-22 | Rust preventing gypsum composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11094883A JPS605056A (en) | 1983-06-22 | 1983-06-22 | Rust preventing gypsum composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS605056A JPS605056A (en) | 1985-01-11 |
| JPH0147418B2 true JPH0147418B2 (en) | 1989-10-13 |
Family
ID=14548600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11094883A Granted JPS605056A (en) | 1983-06-22 | 1983-06-22 | Rust preventing gypsum composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS605056A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5071579A (en) * | 1988-08-29 | 1991-12-10 | Domtar Inc. | Corrosion inhibiting systems, products containing residual amounts of such systems, and methods therefor |
| NO303457B1 (en) * | 1987-12-17 | 1998-07-13 | Domtar Inc | Procedure for inhibiting corrosion and composition for deicing of reinforced concrete |
| JPH0661750B2 (en) * | 1990-08-09 | 1994-08-17 | 工業技術院長 | Corrosion prevention method |
| DK0571456T3 (en) * | 1991-02-14 | 1996-03-18 | Domtar Inc | Process for reducing the peeling of concrete due to frost and thaw |
| DE50108856D1 (en) * | 2000-05-24 | 2006-04-13 | Baueml Martin | CEMENT-CONTAINED MATERIAL |
-
1983
- 1983-06-22 JP JP11094883A patent/JPS605056A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS605056A (en) | 1985-01-11 |
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