JPS6021875A - Manufacture of carbonate gypsum foamed body board - Google Patents
Manufacture of carbonate gypsum foamed body boardInfo
- Publication number
- JPS6021875A JPS6021875A JP58128537A JP12853783A JPS6021875A JP S6021875 A JPS6021875 A JP S6021875A JP 58128537 A JP58128537 A JP 58128537A JP 12853783 A JP12853783 A JP 12853783A JP S6021875 A JPS6021875 A JP S6021875A
- Authority
- JP
- Japan
- Prior art keywords
- carbonate
- gypsum
- cloth
- board
- aqueous solution
- 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
Links
Landscapes
- Laminated Bodies (AREA)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
従来,石膏ボードを製造するに際し気泡助剤として界面
活性剤を使用するが,半水石膏の種類,例えば,α型の
半水石膏及びβ型の半水石膏等そのほか銘柄に応じて個
別に界面活性剤を選択しなければならない。しかしなが
ら,界面活性剤のみを用いて合成樹脂のエマルジヨン水
溶液と半水石膏及び硬化促進剤等の添加剤を加えてミキ
シングした場合,膨張したスラリー中の微細な気泡は粗
大化したり,トビ状の気泡が発生したりして不均質な気
泡密度になるのが普通である。従つて,この現象を緩和
するためには膨張率を高めてスラリーの比重を小さくす
る工夫が必要とされるが,その反面石膏の耐圧強度が低
下してしまうという製造上の難点があつた。本発明者は
この点に鑑み研究し,従来の製造法上の欠点を排除しよ
うとするものである。更に詳述すれば,本発明方法によ
つて製造する炭酸発泡石膏体ボードの嵩比重は1,3以
下の範囲内にあり,使用して配合する各種添加物質は次
のようであるが,これらは選択的に用いて添加すること
ができるものである。[Detailed description of the invention] Conventionally, surfactants are used as foaming aids when manufacturing gypsum boards, but other types of hemihydrate gypsum, such as α-type hemihydrate gypsum and β-type hemihydrate gypsum, etc. Surfactants must be selected individually depending on the brand. However, when mixing a synthetic resin emulsion aqueous solution with additives such as gypsum hemihydrate and a hardening accelerator using only a surfactant, the fine air bubbles in the expanded slurry may become coarser or become spiky. It is normal for this to occur, resulting in a non-uniform bubble density. Therefore, in order to alleviate this phenomenon, it is necessary to increase the expansion coefficient and reduce the specific gravity of the slurry, but this poses a manufacturing problem in that the compressive strength of the gypsum decreases. The present inventor has conducted research in view of this point and has attempted to eliminate the drawbacks of conventional manufacturing methods. More specifically, the bulk specific gravity of the carbonated foamed gypsum board produced by the method of the present invention is within the range of 1.3 or less, and the various additives used and mixed are as follows. can be added selectively.
本発明方法による各種添加物質
「半水石膏」:化学式がCaSO4・1/2H2Oで示
されるα型またはβ型の半水石膏の粉末,粒度はなるべ
く100メツシユ以下が望ましい。Various additive substances "gypsum hemihydrate" according to the method of the present invention: α-type or β-type gypsum hemihydrate powder whose chemical formula is CaSO4.1/2H2O. The particle size is preferably 100 mesh or less.
「脂肪酸塩」:(アルカリ金属の脂肪酸塩は除く。)ラ
ウリン酸バリウム,ラスリン酸亜鉛,ラウリン酸鉛,ラ
ウリン酸マグネシウム,ラウリン酸カルシウム,パルミ
チン酸亜鉛,パルミチン酸コバルト,パルミチン酸鉛,
パルミチン酸マグネシウムパルミチン酸マンガン,オレ
イン酸亜鉛,オレイン酸コバルト,オレイン酸鉛,オレ
イン酸マグネシウム,オレイン酸マンガン,ステアリン
酸スズステアリン酸亜鉛,ステアリン酸コバルト,ステ
アリン酸鉛,ステアリン酸ジルコニウム,ステアリン酸
アルミニウム,ステアリン酸カルシウム,ステアリン酸
カドミウム,ステアリン酸バリウムステアリン酸マグネ
シウム,ステアリン酸マンガン塩等の低級脂肪酸塩及び
高級脂肪酸塩。"Fatty acid salts": (excluding alkali metal fatty acid salts) barium laurate, zinc lath phosphate, lead laurate, magnesium laurate, calcium laurate, zinc palmitate, cobalt palmitate, lead palmitate,
Magnesium palmitate Manganese palmitate, Zinc oleate, Cobalt oleate, Lead oleate, Magnesium oleate, Manganese oleate, Tin stearate, Zinc stearate, Cobalt stearate, Lead stearate, Zirconium stearate, Aluminum stearate, Lower fatty acid salts and higher fatty acid salts such as calcium stearate, cadmium stearate, barium stearate, magnesium stearate, and manganese stearate.
「炭酸塩または重炭酸塩の炭酸塩」:炭酸亜鉛,炭酸ア
ンモニウム,炭酸カドミウム,炭酸カリウム,炭酸カリ
ウムナトリウム,炭酸カルシウム,炭酸クロム,炭酸コ
バルト,水酸化炭酸コバルト水酸化炭酸銅,水酸化炭酸
鉛,水酸化炭酸ニシケル,水酸化炭酸マグネシウム,炭
酸鉄,炭酸銅,炭酸ナリトウム,炭酸ナトリウムカリウ
ム,炭酸鉛,炭酸ニツケル,炭酸バリウム,炭酸マグネ
シウム,炭酸マグネシウムカルシウム,炭酸マンカン等
の炭酸塩,三炭酸二水素四アンモニウム,炭酸水素アン
モニウム,炭酸水素カリウム,炭酸水素ナトリウム,炭
酸水素マグネシウムカリウム,炭酸水素リチウム等の重
炭酸塩の炭酸塩。"Carbonates of carbonates or bicarbonates": zinc carbonate, ammonium carbonate, cadmium carbonate, potassium carbonate, potassium sodium carbonate, calcium carbonate, chromium carbonate, cobalt carbonate, cobalt hydroxide carbonate, copper hydroxide carbonate, lead hydroxide carbonate Carbonates, such as nickel carbonate, hydroxide carbonate, magnesium hydroxide carbonate, iron carbonate, copper carbonate, sodium carbonate, sodium potassium carbonate, lead carbonate, nickel carbonate, barium carbonate, magnesium carbonate, magnesium calcium carbonate, mankan carbonate, etc. Carbonates of bicarbonates such as tetraammonium hydrogen, ammonium bicarbonate, potassium bicarbonate, sodium bicarbonate, potassium magnesium bicarbonate, and lithium bicarbonate.
「酸性の弗化化合物」:珪弗化ナトリウム,珪弗化カル
シウム,珪弗化カリウム,珪弗化亜鉛,珪弗化鉛,珪弗
化アンモニウム,珪弗化バリウム塩等の珪弗化塩,珪弗
化水素酸水溶液,弗化水素酸水溶液,酸性弗化ナトリウ
ム及び酸性弗化カリウム等の酸性の弗化化合物または酸
性弗化物。"Acidic fluoride compounds": silicofluoride salts such as sodium silicofluoride, calcium silicofluoride, potassium silicofluoride, zinc silicofluoride, lead silicofluoride, ammonium silicofluoride, barium silicofluoride salts, Acidic fluoride compounds or acidic fluorides, such as hydrosilicic acid aqueous solution, hydrofluoric acid aqueous solution, acidic sodium fluoride, and acidic potassium fluoride.
「ポルビニールアルコール」:5〜10重量%に調製し
たポリビニールアルコール水溶液を使用するが,粉末状
のポリビニールアルコールも使用することができる。"Polyvinyl alcohol": An aqueous polyvinyl alcohol solution prepared to a concentration of 5 to 10% by weight is used, but powdered polyvinyl alcohol can also be used.
「硬化促進剤」:硫酸アンモニウム,硫酸カリウム明バ
ン,硫酸マグネシウム等の硫酸塩珪酸質物質及び動物の
膠質物質。"Curing accelerator": Sulfate silicic acid substances such as ammonium sulfate, potassium sulfate alum, magnesium sulfate, and animal colloid substances.
「防水剤」:パラフインのエマルジヨン水溶液またはア
スフアルトのエマルジヨン水溶液等,固形分(乾燥重量
)に換算し,2重量%以下の添加量で防水にすることが
できる。"Waterproofing agent": An aqueous emulsion solution of paraffin or an aqueous emulsion solution of asphalt can be added in an amount of 2% by weight or less in terms of solid content (dry weight) to make it waterproof.
「繊維物質」:硝子繊維,シリカ繊維,カーボン繊維,
パルプ繊維,ポリエステル繊維,プロピレン繊維及び金
属繊維等繊維物質であれば何んでもよい。"Fiber materials": glass fibers, silica fibers, carbon fibers,
Any fiber material may be used, such as pulp fiber, polyester fiber, propylene fiber, and metal fiber.
「珪酸塩」:珪酸カルシウム(例えば,メタ珪酸カルシ
ウム及び珪酸二石灰等。),珪酸バリウム塩珪酸鉛塩,
珪酸マグネシウム塩,珪酸マンガン塩メタ珪酸マグネシ
ウムカルシウム塩等。"Silicate": Calcium silicate (e.g. calcium metasilicate and dicalcium silicate, etc.), barium silicate salt, lead silicate salt,
Magnesium silicate salt, manganese silicate salt, magnesium calcium metasilicate salt, etc.
「塩化物」:塩化カルシウム,塩化バリウム,塩化マグ
ネシウム,塩化鉛,塩化アンモニウム等。"Chloride": Calcium chloride, barium chloride, magnesium chloride, lead chloride, ammonium chloride, etc.
「合成樹脂のエマルジヨン水溶液」:ポリ酢酸ビニール
エマルジヨン,アクリル酸エステル共重合体エマルジヨ
ン水溶液,ポリスチレンエマルジヨン水溶液,ポリビニ
ールアルコール塩化ビニール共重合体エマルジヨン水溶
液,その他合成樹脂のエマルジヨン水溶液であれば何ん
でもよい。"Synthetic resin emulsion aqueous solution": Polyvinyl acetate emulsion, acrylic ester copolymer emulsion aqueous solution, polystyrene emulsion aqueous solution, polyvinyl alcohol vinyl chloride copolymer emulsion aqueous solution, or any other synthetic resin emulsion aqueous solution. But that's fine.
本発明方法に使用する布には木綿繊維布,麻繊維布,純
毛繊維布等の天然繊維布,レーヨン繊維布等の化学繊維
布,炭素繊維布,アクリロニトリル繊維布,ポリプロピ
レン繊維布,ポリエステル繊維布,ナイロン繊維布,ア
セテート繊維布等の合成繊維布,木綿・ポリエステル混
紡繊維布,木綿・ナイロン混紡繊維布等の混紡の繊維布
,アスベスト繊維布,皮革の布,合成皮革の布等その他
繊維または繊維状の布であれば何んでも使用することが
できる。炭酸発泡石膏体ボードの厚みは1,6ミリ前後
の厚みのものは勿論のこと,3ミリ6ミリ,9ミリ,1
2ミリ,15ミリ,20ミリ60ミリ,100ミリ及び
120ミリ等のボードを成型して製造することができる
。その場合必要に応じて二枚以上の布の間,例えば,二
枚の布の間三枚の布の間,四枚の布の間,五枚の布の間
及び六枚の布の間に発泡石膏スラリーを流し込んでボー
ド状に成型して製造することも可能であり,中心になる
布のかわりに石膏ボード原紙または紙を使用することも
できる。次に本発明方法を実施例によつて説明する。Fabrics used in the method of the present invention include natural fiber cloths such as cotton fiber cloth, hemp fiber cloth, pure wool fiber cloth, chemical fiber cloth such as rayon fiber cloth, carbon fiber cloth, acrylonitrile fiber cloth, polypropylene fiber cloth, and polyester fiber cloth. , synthetic fiber cloth such as nylon fiber cloth, acetate fiber cloth, cotton/polyester blend fiber cloth, blended fiber cloth such as cotton/nylon blend fiber cloth, asbestos fiber cloth, leather cloth, synthetic leather cloth, etc. Any fibrous cloth can be used. The thickness of carbonated foam gypsum board is of course around 1.6 mm, but also 3 mm, 6 mm, 9 mm, and 1 mm.
It is possible to mold and manufacture boards of 2 mm, 15 mm, 20 mm, 60 mm, 100 mm, 120 mm, etc. In that case, between two or more pieces of cloth as necessary, for example, between two pieces of cloth, between three pieces of cloth, between four pieces of cloth, between five pieces of cloth, and between six pieces of cloth. It is also possible to manufacture it by pouring foamed gypsum slurry and molding it into a board shape, and it is also possible to use gypsum board base paper or paper instead of the cloth as the centerpiece. Next, the method of the present invention will be explained with reference to examples.
実施例1
配 合
β型の半水石膏 100 重量部
ステアリン酸カルシウム 0.015 〃平均粒子径
0.15ミクロンの炭酸カルシウム0.4 〃
10%の珪弗化カルシウム水溶液
3.6 〃
15%の酢酸ビニールエマルジヨン水溶液10 〃
硫酸アンモニウム 1.2 〃
水 60 〃
上記からなる配合添加物質をミキサー中において10秒
間以内で均質に撹拌または混合し,無数の微細な炭酸ガ
スの気泡を含有する流動性のよい発泡石膏スラリーを作
成後,これを2枚の木綿の布の型枠内に流し込み8分で
硬化せしめ150℃の温度で乾燥後,9ミリ厚,嵩比重
0.82の炭酸発泡石膏体ボードの成型品を製造した。Example 1 Blend β-type gypsum hemihydrate 100 parts by weight Calcium stearate 0.015 Average particle size
0.15 micron calcium carbonate 0.4 〃 10% calcium silicofluoride aqueous solution 3.6 〃 15% vinyl acetate emulsion aqueous solution 10 〃 Ammonium sulfate 1.2 〃 Water 60 〃 The above additives were mixed in a mixer. Stir or mix homogeneously within 10 seconds to create a highly fluid foamed gypsum slurry containing countless microscopic carbon dioxide gas bubbles, then pour this into a mold made of two pieces of cotton cloth for 8 minutes. After curing and drying at a temperature of 150° C., a carbonated foamed gypsum board molded product having a thickness of 9 mm and a bulk specific gravity of 0.82 was produced.
実施例2
配 合
β型の半水石膏 100 重量部
ラウリン酸バリウム 0.02 重量部平均粒子径 0
.15ミクロン炭酸カルシウム0.4 〃
10%の珪弗化カルシウム水溶液
3.6 〃
15%の酢酸ビニールエマルジヨン水溶液10 〃
硫酸アンモニウム 1.3 〃
ガラス繊維 0.4 〃
水 60 〃
実施例1と同様な作業を行い,2枚の木綿・ポリエステ
ル混紡繊維の布の型枠内に流し込み8分で硬化せしめ,
100℃以下の温度で乾燥後,3ミリ厚,嵩比重0.8
4の炭酸発泡石膏体ボードを製造した。Example 2 Blend β-type gypsum hemihydrate 100 parts by weight Barium laurate 0.02 parts by weight Average particle diameter 0
.. 15 micron calcium carbonate 0.4 〃 10% calcium silicofluoride aqueous solution 3.6 〃 15% vinyl acetate emulsion aqueous solution 10 〃 Ammonium sulfate 1.3 〃 Glass fiber 0.4 〃 Water 60 〃 Same as Example 1 The mixture was then poured into a mold made of two pieces of cotton/polyester blend fabric and allowed to harden in 8 minutes.
After drying at a temperature below 100℃, 3mm thick, bulk specific gravity 0.8
A carbonated foamed gypsum board of No. 4 was manufactured.
実施例 3
配 合
β型の半水石膏 100 重量部
ステアリン酸カルシウム 0.02 〃平均粒子径 0
.15ミクロンの炭酸カルシウム1.0 重量部
10%の珪弗化ナトリウム水溶液
10.3 〃
10%のメタ珪酸カルシウムイ水溶液
1.2 〃
塩化カルシウム(CaCl2・2H2O)0.8 〃
15%の酢酸ビニールエマルジヨン水溶液10 〃
5%のポリビニールアルコール水溶液
20 〃
硫酸アンモニウム 1.4 〃
水 42 〃
実施例1と同様な作業を行い,2枚のポリエステル繊維
布の型枠内に流し込み8分で硬化せしめ150℃の温度
で乾燥後,40ミリ厚,嵩比重0.67の炭酸発泡石膏
体ボードを製造した。発泡反応は次のようである。Example 3 Blend β-type gypsum hemihydrate 100 parts by weight Calcium stearate 0.02 Average particle size 0
.. 15 micron calcium carbonate 1.0 Part by weight 10% sodium silicofluoride aqueous solution 10.3 10% calcium metasilicate aqueous solution 1.2 Calcium chloride (CaCl2.2H2O) 0.8 15% vinyl acetate Emulsion aqueous solution 10 〃 5% polyvinyl alcohol aqueous solution 20 〃 Ammonium sulfate 1.4 〃 Water 42 〃 The same procedure as in Example 1 was carried out, and the mixture was poured into a mold made of two polyester fiber cloths and cured in 8 minutes. After drying at a temperature of .degree. C., a carbonated foamed gypsum board with a thickness of 40 mm and a bulk specific gravity of 0.67 was produced. The foaming reaction is as follows.
Na2SiF6+CaSiO3+CaCO3+CaCl
2+2H2O→3CaF2↓+2H2SiO3↓+2N
aCl+CO2↑実施例3はポリビニールアルコール水
溶液を併用して実施できることを示している。以上,詳
述のように本発明によると,布と石膏との接着性のよい
微細な気泡を含有する炭酸発泡石膏体ボードを経済的に
低廉に製造することができるため工業的利用価値は広範
である。Na2SiF6+CaSiO3+CaCO3+CaCl
2+2H2O→3CaF2↓+2H2SiO3↓+2N
aCl+CO2↑Example 3 shows that it can be carried out in combination with a polyvinyl alcohol aqueous solution. As detailed above, according to the present invention, a carbonated foamed gypsum board containing fine air bubbles that has good adhesion between cloth and plaster can be produced economically and at low cost, so it has a wide range of industrial utility value. It is.
特許出願人 阿部賢一Patent applicant: Kenichi Abe
Claims (1)
肪酸塩(アルカリ金属の脂肪酸塩は除く),炭酸塩また
は重炭酸塩の炭酸塩,酸性の弗化化合物,合成樹脂のエ
マルジヨン水溶液,硬化促進剤及び半石膏の混水量の水
を加え,ミキサー中で均質に撹拌または混合し,無数の
炭酸ガスの微細気泡を含有する流動性のよい発泡石膏ス
ラリーを作成し,これを布の間に流し込んでボード状に
成型後硬化せしめ乾燥することを特徴とする炭酸発泡石
膏体ボードの製造方法。1. The main raw material is α-type or β-type gypsum hemihydrate, which contains fatty acid salts (excluding fatty acid salts of alkali metals), carbonates of carbonates or bicarbonates, acidic fluoride compounds, aqueous emulsion solutions of synthetic resins, Add a hardening accelerator and water equal to half the amount of gypsum, stir or mix homogeneously in a mixer to create a highly fluid foamed gypsum slurry containing countless carbon dioxide gas microbubbles, and spread this between cloth. 1. A method for producing a carbonated foamed gypsum board, which comprises pouring it into a board, molding it into a board shape, and then curing and drying it.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58128537A JPS6021875A (en) | 1983-07-14 | 1983-07-14 | Manufacture of carbonate gypsum foamed body board |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58128537A JPS6021875A (en) | 1983-07-14 | 1983-07-14 | Manufacture of carbonate gypsum foamed body board |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6021875A true JPS6021875A (en) | 1985-02-04 |
Family
ID=14987203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58128537A Pending JPS6021875A (en) | 1983-07-14 | 1983-07-14 | Manufacture of carbonate gypsum foamed body board |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6021875A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6171388B1 (en) | 1998-03-17 | 2001-01-09 | Rhodia Inc. | Lightweight gypsum composition |
CN103334562A (en) * | 2012-05-21 | 2013-10-02 | 刘树成 | Stress decorative board and preparation method of decorative board |
-
1983
- 1983-07-14 JP JP58128537A patent/JPS6021875A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6171388B1 (en) | 1998-03-17 | 2001-01-09 | Rhodia Inc. | Lightweight gypsum composition |
CN103334562A (en) * | 2012-05-21 | 2013-10-02 | 刘树成 | Stress decorative board and preparation method of decorative board |
CN103334562B (en) * | 2012-05-21 | 2015-04-29 | 刘树成 | Stress decorative board and preparation method of decorative board |
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