JPS5918336B2 - gypsum composition - Google Patents

gypsum composition

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Publication number
JPS5918336B2
JPS5918336B2 JP13870979A JP13870979A JPS5918336B2 JP S5918336 B2 JPS5918336 B2 JP S5918336B2 JP 13870979 A JP13870979 A JP 13870979A JP 13870979 A JP13870979 A JP 13870979A JP S5918336 B2 JPS5918336 B2 JP S5918336B2
Authority
JP
Japan
Prior art keywords
gypsum
minutes
flow
days
apparent
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
Application number
JP13870979A
Other languages
Japanese (ja)
Other versions
JPS5663854A (en
Inventor
督治 飯田
真喜雄 原田
文男 田尾
道夫 本田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ube Corp
Original Assignee
Ube Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ube Industries Ltd filed Critical Ube Industries Ltd
Priority to JP13870979A priority Critical patent/JPS5918336B2/en
Publication of JPS5663854A publication Critical patent/JPS5663854A/en
Publication of JPS5918336B2 publication Critical patent/JPS5918336B2/en
Expired legal-status Critical Current

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Description

【発明の詳細な説明】 本発明は、%tこ床材、壁材などの建材に使用する石こ
う組成物の改良に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in gypsum compositions for use in building materials such as flooring and wall materials.

最近、石こうの有効利用ということで、建材特に床材、
壁材等に強度の大きいα警手水石こうを主成分とする流
動性の良い石こう組成物が使用されることが多くなった
Recently, with the effective use of gypsum, building materials, especially flooring materials,
Gypsum compositions with good fluidity, the main component of which is strong alpha gypsum gypsum, are increasingly being used for wall materials and the like.

この流動性の良い石こう組成物には、減水剤、水浮き防
止剤、消泡剤、硬化調整剤等の各種添加剤が配合してあ
り、オールプレミックス製品として床材、壁材等の原料
としで使用されでいる。
This highly fluid gypsum composition contains various additives such as water reducing agents, anti-floating agents, antifoaming agents, hardening regulators, etc., and is an all-premix product that can be used as a raw material for flooring, wall materials, etc. It is used in various ways.

しかし、特にメラミンホルマリン樹脂スルホン酸塩のよ
うな減水剤を使用する場合には、製品の貯蔵安定性があ
まり良くないので問題が多い。
However, there are many problems, especially when a water reducing agent such as melamine formalin resin sulfonate is used, since the storage stability of the product is not very good.

例えば石こうとして天然石こうを用いたものでも、40
℃、20日で硬化時間は2倍以上遅延している。
For example, even if natural gypsum is used as plaster,
℃, the curing time was delayed by more than twice in 20 days.

また、リン醜行こうを使用したものは、室温で1.5力
月、40°015日で流動性が40%程度低下する。
In addition, the fluidity of the product using phosphorescence decreases by about 40% after 1.5 months at room temperature and 15 days at 40°C.

したがって、プレミックス品でも使用時に再調整するか
、あるいは使用直前に添加剤を加えることによってその
都度調整するかしているのが現状である。
Therefore, the current situation is that even premixed products are readjusted at the time of use, or adjusted each time by adding additives immediately before use.

本発明はプレミックスの石こう組成物の流動性の経時劣
化を抑え、通常の使用期間(製造後bカ月)内では、一
定の品質を保つ石こう組成物を目的とするもので、減水
剤の如き添加剤を加えてなるα警手水石こうを主成分と
する組(支)吻にケイフッ化物を添加してなることを特
徴とする石こう組成物よりなるものである。
The purpose of the present invention is to suppress the deterioration of the fluidity of a premixed gypsum composition over time, and to create a gypsum composition that maintains a constant quality during the normal use period (b months after manufacture), It is made of a gypsum composition characterized by adding silicofluoride to the set (branch) proboscis, which is mainly composed of alpha gypsum gypsum with addition of additives.

半水石こうにはα型とβ型とがあるが、本発明で用いる
半水石こうは、特に強度の大きいα型を用いる。
There are α-type and β-type hemihydrate gypsum, and the α-type hemihydrate used in the present invention is particularly strong.

そして通常はポルトランドセメントなどの水硬性セメン
トを併用することが好ましい。
It is usually preferable to use hydraulic cement such as Portland cement.

水硬性セメントを併用すれば安定性の外強度的にも改善
される。
If hydraulic cement is used in combination, stability and external strength will also be improved.

添加剤としで用いられるものは、メラミンホルマリン樹
脂スルホン酸塩(商品名:メルメント、昭和電工(株)
製)、アルキルアリルスルホン酸塩(商品名:マイティ
ー100、化工アトラス(株)製)などの減水剤をはじ
めとして、メチルセルローズ、ポリビニルアルコールな
どの水浮き防止剤、硫酸カリ、硫酸アルミニウム、蓚酸
ソーダ、タンパク系などの硬化調整剤、シリコーン樹脂
系(商品名:X5O−418に、信越化学(株)製)、
ポリオキシエチレン系(商品名:ノプコ、サンノプコ(
株)製)などの消泡剤など、石こう組成物によく使用さ
れる添加剤がそのまま用いられる。
The additive used is melamine formalin resin sulfonate (product name: Melment, manufactured by Showa Denko K.K.)
), alkylaryl sulfonate (trade name: Mighty 100, manufactured by Kako Atlas Co., Ltd.), water reducing agents such as methyl cellulose, polyvinyl alcohol, etc., potassium sulfate, aluminum sulfate, and sodium oxalate. , protein-based curing modifiers, silicone resin-based (product name: X5O-418, manufactured by Shin-Etsu Chemical Co., Ltd.),
Polyoxyethylene type (product name: Nopco, San Nopco (
Additives commonly used in gypsum compositions, such as antifoaming agents such as those manufactured by Co., Ltd., can be used as they are.

本発明ではこれらの添加剤とともに、ケイフッ化物を用
いたことが特徴である。
The present invention is characterized in that a silicofluoride is used together with these additives.

ケイフッ化物としでは、アルカリ金属塩、アルカリ土金
属塩が好適に用いられるが、特にカリウム塩、ナトリウ
ム塩が良い。
As the silicofluoride, alkali metal salts and alkaline earth metal salts are preferably used, and potassium salts and sodium salts are particularly preferred.

その使用量は石こう組成物に対して外削で0,02〜0
.5重量%がよい。
The amount used is 0.02 to 0 for external machining relative to the gypsum composition.
.. 5% by weight is good.

0,02重量%より添加量が少ないと効果が得られず、
また0、5重量%より多いと、成形品の物性にフッ素分
の影響が出て好ましくない。
If the amount added is less than 0.02% by weight, no effect will be obtained;
Moreover, if it is more than 0.5% by weight, the fluorine content will affect the physical properties of the molded product, which is not preferable.

本発明ではケイフッ化物を例えば0.1重量%添加した
もので、40℃、20日で流動性の低下は10%程度で
あり、硬化時間の遅延は10分以下である。
In the present invention, when 0.1% by weight of silicofluoride is added, the fluidity decreases by about 10% in 20 days at 40° C., and the curing time is delayed by 10 minutes or less.

したがって常温では3力月以上の安定性があり、通常の
使用期間のものにおいては、プレミックス品として袋詰
めで販売することが可能となる。
Therefore, it is stable for more than 3 months at room temperature, and can be sold in bags as a premix product if it has a normal use period.

つぎに、実施例並びに比較例についで説明する。Next, Examples and Comparative Examples will be explained.

実施例 1 リン酸副生α警手水石こう2,800 g、普通ポルト
ランドセメント700g、メラミンホルマリン樹脂スル
ホン酸塩(商品名:メルメント、昭和電工(株)製)、
ケイフッ化ソーダ3.5gをV型混合機で30分間混合
後、ポリ袋に密封し、1口径40℃の温風乾燥機中に所
定日数放置して、フロー値及び凝結時間の経時変化を測
定した。
Example 1 2,800 g of phosphoric acid by-product α-watch plaster, 700 g of ordinary Portland cement, melamine formalin resin sulfonate (trade name: Melment, manufactured by Showa Denko K.K.),
After mixing 3.5 g of sodium fluorosilicide with a V-type mixer for 30 minutes, it was sealed in a plastic bag and left in a hot air dryer with a diameter of 40°C for a specified number of days, and the flow value and condensation time were measured over time. did.

その結果、混合1口径混練水性割25%でフロー 23
0 m/m、見掛けの終結25分のものが、40゜℃、
20日後、フロー298 m/m、見掛けの終結35分
となり、フローで10%、凝結時間では10分しか変化
しでいなかった。
As a result, the flow rate was 25% with 1 caliber kneading water content.
0 m/m, the apparent final 25 minutes was 40°C,
After 20 days, the flow was 298 m/m and the apparent finish was 35 minutes, a change of only 10% in flow and 10 minutes in setting time.

これは常温では3力月以上の安定性に相当する。This corresponds to stability of more than 3 months at room temperature.

実施例 2 実施例1におけるケイフッ化ソーダの代りにケイフッ化
カリを使用した以外は、実施例1と同様の処理を行なっ
た。
Example 2 The same treatment as in Example 1 was performed except that potassium fluorosilicide was used instead of sodium fluorosilicide in Example 1.

その結果、混合1口径混練水性割25係でフロー224
m/m、見掛けの終結25分のものが、40℃、20
日後、フロー202m/m、見′掛けの終結35分とな
り、フローで10%凝結時間では10分しか変化しでい
なかった。
As a result, the flow rate was 224 with 1 caliber kneading aqueous ratio 25 parts.
m/m, apparent termination of 25 minutes, 40°C, 20
After a day, the flow was 202 m/m and the apparent final time was 35 minutes, and the flow had changed by only 10 minutes at 10% condensation time.

これは常温では3力月以上の安定性に相当する。This corresponds to stability of more than 3 months at room temperature.

実施例 3 天然α警手水石こう2,800 g、普通ポルトランド
セメント700g、メラミンホルマリン樹脂スルホン酸
塩(前出)42g、メチルセルロース(商品名二メトロ
ーズ、信越化学(株)製)1.4g、タンパク系硬化遅
延剤(商品名:RTK−5、サンニス石膏(株)製)1
0.5g、ケイフッ化ソーダ3.5gを混合して、実施
例1と同様の処理をした。
Example 3 2,800 g of natural alpha gypsum, 700 g of ordinary Portland cement, 42 g of melamine formalin resin sulfonate (mentioned above), 1.4 g of methyl cellulose (trade name Nimetrose, manufactured by Shin-Etsu Chemical Co., Ltd.), protein System curing retarder (product name: RTK-5, manufactured by Sannis Gypsum Co., Ltd.) 1
0.5 g and 3.5 g of sodium fluorosilicide were mixed, and the same treatment as in Example 1 was carried out.

その結果、混合1口径混練水性割25%でフロー205
mA見掛けの終結27分のものが、40℃、20日1フ
ロー200 m/m、見掛けの終結38分となり、フロ
ーで2.5%凝結時間で11分しか変化していなかった
As a result, the flow rate was 205 with a mixing ratio of 1 diameter and 25% of the water content.
The mA apparent termination of 27 minutes became an apparent termination of 38 minutes at 40° C., 20 days, 1 flow of 200 m/m, and the flow changed by only 11 minutes at 2.5% condensation time.

これは常温では3力月以上の安定性に相当する。This corresponds to stability of more than 3 months at room temperature.

比較例 1 リン酸副生α警手水石こう2,800 g、普通ポルト
ランドセメント700g、メラミンホルマリン樹脂スル
ホン酸塩(前出)、硫酸力IJ 35 gを■型混合機
で30分間混合後、ポリ袋に密封し、1口径40℃の温
風乾燥機中に所定日数放置して、フロー値及び凝結時間
の経時変化を測定した。
Comparative Example 1 After mixing 2,800 g of phosphoric acid by-product α Gypsum, 700 g of ordinary Portland cement, melamine formalin resin sulfonate (mentioned above), and 35 g of sulfuric acid IJ in a type mixer for 30 minutes, It was sealed in a bag and left in a hot air dryer with a diameter of 40° C. for a predetermined number of days, and changes in flow value and coagulation time over time were measured.

その結果、混合1口径混疎水外割25%で、フロー23
4 m/m、見掛けの終結30分のものが40°C21
0日後フロー11Q 3 m/m、見掛けの終結42分
、20日1フロー126 m/m、見掛けの終結49分
となり、大きく経時変化をした。
As a result, the flow rate was 23 with a mixed 1-caliber mixed hydrophobic outer ratio of 25%.
4 m/m, apparent final 30 minutes is 40°C21
After 0 days, the flow was 11Q 3 m/m, with an apparent end of 42 minutes, and on the 20th, 1 flow was 126 m/m, with an apparent end of 49 minutes, which showed a large change over time.

また、普通ポルトランドセメントを入れない場合は40
℃で1日後に劣化した。
Also, if you do not add normal Portland cement, 40
It deteriorated after 1 day at ℃.

比較例 2 比較例1と全く同組成のものを室内に放置したところ、
30日1フロー212 m/m s見掛けの終結37分
、45日1フロー193 m/m、見掛けの終結44分
となり、室温でも約1ケ月しか安定性がなかった。
Comparative Example 2 When a product with exactly the same composition as Comparative Example 1 was left indoors,
On day 30, one flow was 212 m/m s, with an apparent termination of 37 minutes, and on day 45, one flow was 193 m/m, with an apparent termination of 44 minutes, and it was stable for only about one month even at room temperature.

比較例 3 天然α警手水石こう2.s o o g、普通ポルトラ
ンドセメント700g、メラミンホルマリン樹脂スルホ
ン酸塩(前出)42Lメチルセルロース(前出)1.4
.@、タンパク系硬化遅延剤10.59をV型混合機で
30分間混合後、ポリ袋に密封し、1目抜40℃の温風
乾燥機中の所定日数放置して、フロー値及び凝結時間の
経時変化を測定した。
Comparative example 3 Natural α Kite water gypsum 2. s o o g, ordinary Portland cement 700g, melamine formalin resin sulfonate (mentioned above) 42L Methyl cellulose (mentioned above) 1.4
.. After mixing 10.59 of a protein-based hardening retardant for 30 minutes in a V-type mixer, seal it in a plastic bag and leave it in a hot air dryer at 40°C for a predetermined number of days to determine the flow value and setting time. The changes over time were measured.

その結果、混合1日後、混練水25部でフロー217
m/\見掛けの終結25分のものが、40℃、20日後
、フロー212 m/m 、見掛けの終結52分となり
、大きく経時変化をした。
As a result, after one day of mixing, 217% of the flow was mixed with 25 parts of kneading water.
m/\apparent final time of 25 minutes, after 20 days at 40°C, the flow became 212 m/m and the apparent final time was 52 minutes, which showed a large change over time.

比較例 4 比較例1の硫酸カリを蓚酸ナトIJウムtこ代えた以外
は全く同一の処理をした。
Comparative Example 4 The same treatment as in Comparative Example 1 was carried out except that the potassium sulfate was replaced with sodium oxalate.

その結果、混合18後混練水25部でフロー19577
1/is見掛けの終結27分のものが、40℃、10日
1フロー161m/m、20日後フロー75ル菊と大き
く経時変化をした。
As a result, after 18 minutes of mixing, 25 parts of kneading water was used to form a flow of 19577.
1/is apparent final time of 27 minutes changed significantly over time, at 40°C, 1 flow rate was 161 m/m on 10 days, and flow rate was 75 km/m after 20 days.

以上のようにケイフッ化物の使用lこより、石膏組成物
の安定性は大いに向上し、プレミックス品として、すべ
ての材料を混合して袋詰め販売するこきが可能きなり、
常に安定した石こう製品を供給することができる。
As mentioned above, the use of fluorosilicide greatly improves the stability of the gypsum composition, making it possible to mix all the materials and sell them in bags as a premix product.
We can always supply stable gypsum products.

Claims (1)

【特許請求の範囲】 1 減水剤の如き添加剤を加えてなるα警手水石こうを
主成分とする組喫吻にケイフッ化物を添加してなること
を特徴とする石こう組成物。 2 ケイフッ化物がアルカリ金属塩である特許請求の範
囲第1項記載の石こう組成物。 3 ケイフッ化物がアルカリ士金属塩である特許請求の
範囲第1項記載の石こう組成物。
[Scope of Claims] 1. A gypsum composition characterized in that it is made by adding silicofluoride to a composition whose main component is alpha gypsum gypsum, which is made by adding an additive such as a water-reducing agent. 2. The gypsum composition according to claim 1, wherein the silicofluoride is an alkali metal salt. 3. The gypsum composition according to claim 1, wherein the silicofluoride is an alkali metal salt.
JP13870979A 1979-10-29 1979-10-29 gypsum composition Expired JPS5918336B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13870979A JPS5918336B2 (en) 1979-10-29 1979-10-29 gypsum composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13870979A JPS5918336B2 (en) 1979-10-29 1979-10-29 gypsum composition

Publications (2)

Publication Number Publication Date
JPS5663854A JPS5663854A (en) 1981-05-30
JPS5918336B2 true JPS5918336B2 (en) 1984-04-26

Family

ID=15228285

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13870979A Expired JPS5918336B2 (en) 1979-10-29 1979-10-29 gypsum composition

Country Status (1)

Country Link
JP (1) JPS5918336B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107315217A (en) * 2012-03-30 2017-11-03 株式会社可乐丽 Polyvinyl alcohol film and its manufacture method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107315217A (en) * 2012-03-30 2017-11-03 株式会社可乐丽 Polyvinyl alcohol film and its manufacture method
CN107315217B (en) * 2012-03-30 2020-11-06 株式会社可乐丽 Polyvinyl alcohol polymer film and method for producing same

Also Published As

Publication number Publication date
JPS5663854A (en) 1981-05-30

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