JP2000109380A - Lightweight inorganic board - Google Patents
Lightweight inorganic boardInfo
- Publication number
- JP2000109380A JP2000109380A JP10279256A JP27925698A JP2000109380A JP 2000109380 A JP2000109380 A JP 2000109380A JP 10279256 A JP10279256 A JP 10279256A JP 27925698 A JP27925698 A JP 27925698A JP 2000109380 A JP2000109380 A JP 2000109380A
- Authority
- JP
- Japan
- Prior art keywords
- water
- slurry
- synthetic resin
- inorganic plate
- resin foam
- 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.)
- Withdrawn
Links
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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、主として建築用断
熱材、外壁材の下地材等に使用される軽量無機質板に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lightweight inorganic plate mainly used as a heat insulating material for a building or a base material for an outer wall material.
【０００２】[0002]
【従来の技術】建築用断熱材、外壁材の下地材等に使用
される軽量無機質板を湿式法により製造するには、一般
的に、各種セメント等の水硬性物質と、木質繊維等の補
強繊維と、珪砂等のシリカ微粉末と、発泡ポリスチレン
ビーズ等の合成樹脂発泡体小片とを水に添加、攪拌して
スラリー状にして、該混合スラリーをフェルト等の多孔
質帯上に流下し吸引脱水することによって連続的に抄造
フォーミングし、得られた抄造マットを養生硬化させ
る。2. Description of the Related Art In order to produce a lightweight inorganic plate used as a heat insulating material for a building or a base material of an outer wall material by a wet method, generally, a hydraulic material such as various cements and a reinforcing material such as a wood fiber are used. Fiber, silica fine powder such as silica sand, and synthetic resin foam small pieces such as expanded polystyrene beads are added to water, stirred to form a slurry, and the mixed slurry is allowed to flow down onto a porous band such as felt and sucked. Paper forming is continuously performed by dehydration, and the obtained paper mat is cured and cured.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記発
泡ポリスチレンビーズ等の合成樹脂発泡体小片の比重は
約0.1 以下、特に高発泡倍率のものでは0.05以下と非常
に小さいため、該発泡体小片は原料攪拌工程で浮き上が
ってしまい、均一なスラリーを調製することができな
い。特に、水硬性物質、補強繊維及びシリカ微粉末を均
一に分散させるためには固形分濃度を低くする必要があ
るが、このように固形分濃度を低くすると、該発泡体小
片の浮き上がりが更に顕著になってしまう。そのため、
得られる軽量無機質板、特に断熱材の如き板厚の大きい
軽量無機質板では、その板中の合成樹脂発泡体小片が均
一に分散されず、該軽量無機質板の強度が低下したり断
熱性能等にばらつきが生ずるという問題があった。However, since the specific gravity of the synthetic resin foam such as the expanded polystyrene beads is very low, about 0.1 or less, and especially 0.05 or less in the case of a high expansion ratio, the foam is small in raw material. The slurry rises in the stirring step, and a uniform slurry cannot be prepared. In particular, in order to uniformly disperse the hydraulic substance, the reinforcing fiber, and the silica fine powder, it is necessary to lower the solid content. However, when the solid content is reduced in such a manner, the floating of the foam pieces is more remarkable. Become. for that reason,
In the obtained lightweight inorganic plate, especially in a lightweight inorganic plate having a large thickness such as a heat insulating material, the synthetic resin foam pieces in the plate are not uniformly dispersed, and the strength of the lightweight inorganic plate is reduced or the heat insulating performance is reduced. There is a problem that variation occurs.
【０００４】該スラリー中における合成樹脂発泡体小片
の浮上を防止するために、予めコンベヤーの多孔質帯上
に合成樹脂発泡体小片を散布し、その上に該スラリーを
供給し、抄造する方法が提案された（特開平1-226305
号）。しかし、このように多孔質帯上に発泡体小片とス
ラリーとを別個に散布、供給すると製造装置が複雑にな
るという問題があり、また、このような方法ではスラリ
ー中に発泡体を均一に分散させるのは困難であった。[0004] In order to prevent floating of the synthetic resin foam pieces in the slurry, there is a method in which the synthetic resin foam pieces are sprayed on a porous belt of a conveyor in advance, and the slurry is supplied thereon to form a paper. Proposed (Japanese Unexamined Patent Publication No. 1-226305)
issue). However, when the foam pieces and the slurry are separately sprayed and supplied on the porous band as described above, there is a problem that a manufacturing apparatus becomes complicated, and in such a method, the foam is uniformly dispersed in the slurry. It was difficult to do.
【０００５】従って、本発明の課題は、水硬性物質及び
補強繊維とともに合成樹脂発泡体小片を均一に分散させ
た原料混合物を調製して、該合成樹脂発泡体小片又はそ
れが溶融してできた気泡が均一に分散した軽量無機質板
を提供することである。Accordingly, an object of the present invention is to prepare a raw material mixture in which small pieces of a synthetic resin foam are uniformly dispersed together with a hydraulic substance and reinforcing fibers, and the small pieces of the synthetic resin are melted or formed. An object of the present invention is to provide a lightweight inorganic plate in which bubbles are uniformly dispersed.
【０００６】[0006]
【課題を解決するための手段】本発明は、上記課題を解
決するために、水硬性物質及び補強繊維を含有する原料
を水に分散させ、これに吸水性物質と増粘剤及び／又は
凝集剤とを添加し、かつ任意の時点で合成樹脂発泡体小
片を添加したスラリーから成形したマットの硬化物から
なることを特徴とする軽量無機質板を提供するものであ
る。According to the present invention, in order to solve the above-mentioned problems, a raw material containing a hydraulic substance and a reinforcing fiber is dispersed in water, and a water-absorbing substance, a thickener and / or a coagulant are added thereto. A lightweight inorganic plate comprising a cured product of a mat formed from a slurry to which an agent and a synthetic resin foam piece have been added at any time.
【０００７】上記マットの硬化物の片面又は両面には、
更に、水硬性物質及び補強繊維を含有する原料を水に分
散させ、これに吸水性物質と増粘剤及び／又は凝集剤と
を添加し、かつ任意の時点で上記マットに混合されてい
る合成樹脂発泡体小片よりも小径な合成樹脂発泡体小片
を添加したスラリーから成形したマットの硬化物、及び
／又は水硬性物質及び補強繊維を含有し合成樹脂発泡体
小片を含有しない原料を水に分散させたスラリーから成
形したマットの硬化物を積層してもよい。On one or both sides of the cured product of the mat,
Further, a raw material containing a hydraulic substance and a reinforcing fiber is dispersed in water, a water-absorbing substance and a thickener and / or a flocculant are added thereto, and the synthetic material mixed with the mat at any time is added. A cured material of a mat formed from a slurry to which a synthetic resin foam piece smaller in diameter than a resin foam piece is added, and / or a raw material containing a hydraulic substance and a reinforcing fiber and not containing a synthetic resin foam piece is dispersed in water. A cured product of a mat formed from the slurry thus formed may be laminated.
【０００８】該吸水性物質は、パーライト、焼成シラ
ス、異形フライアッシュ、珪藻土及び無機質板廃材の粉
砕物からなる群から選ばれた少なくとも１種であるのが
好ましく、該増粘剤は、粘土物質、吸水性高分子及び水
溶性高分子からなる群から選ばれた少なくとも１種であ
るのが好ましく、該凝集剤は、硫酸アルミニウム、ミョ
ウバン、ポリアクリル酸ソーダ、ポリアクリル酸エステ
ル、ポリアクリルアミド、ポリアミン系樹脂及びジシア
ンジアミド系樹脂からなる群から選ばれた少なくとも１
種であるのが好ましい。The water-absorbing substance is preferably at least one selected from the group consisting of perlite, calcined shirasu, deformed fly ash, diatomaceous earth, and pulverized waste of inorganic plate, and the thickener is a clay substance. And at least one selected from the group consisting of a water-absorbing polymer and a water-soluble polymer, and the coagulant is aluminum sulfate, alum, sodium polyacrylate, polyacrylate, polyacrylamide, polyamine. At least one selected from the group consisting of a resin-based resin and a dicyandiamide-based resin
Preferably it is a seed.
【０００９】[0009]
【発明の実施の形態】以下、本発明を詳細に説明する。
本発明における軽量無機質板の原料としては、ポルトラ
ンドセメント、アルミナセメント、高炉セメント等の水
硬性物質と、木粉、木毛、木片、木質繊維、木質パル
プ、木質繊維束等の木質補強繊維や、セピオライト、ワ
ラストナイト、ガラス繊維、岩綿等の無機補強繊維等の
補強繊維と、更に所望により、シリカ粉、珪石粉（珪
砂）、シリカヒューム、白土等のシリカ微粉末とを混合
したものが使用される。上記原料において、通常、水硬
性物質は28〜55重量％、補強繊維は３〜15重量％、シリ
カ微粉末を使用する場合、該シリカ微粉末は28〜55重量
％の添加量で使用される。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.
Raw materials for the lightweight inorganic plate in the present invention include, for example, hydraulic materials such as Portland cement, alumina cement, blast furnace cement, and wood reinforcing fibers such as wood flour, wood wool, wood chips, wood fiber, wood pulp, wood fiber bundle, A mixture of reinforcing fibers such as inorganic reinforcing fibers such as sepiolite, wollastonite, glass fiber and rock wool, and, if desired, silica fine powder such as silica powder, silica powder (silica sand), silica fume, and clay. used. In the above raw materials, the hydraulic substance is usually 28 to 55% by weight, the reinforcing fiber is 3 to 15% by weight, and when silica fine powder is used, the silica fine powder is used in an amount of 28 to 55% by weight. .
【００１０】上記原料を水に対して添加し、攪拌して原
料スラリーとする。該原料スラリーの固形分濃度は、17
％以下であるのが好ましく、特に９〜17％であるのが好
ましい。このように固形分濃度を低くすることにより、
補強繊維の分散性を向上させることができるとともに、
補強繊維と無機粉体（水硬性物質）との絡み合いを良好
にすることができる。The above raw materials are added to water and stirred to form a raw material slurry. The solid content concentration of the raw material slurry is 17
%, Preferably 9% to 17%. By lowering the solid content concentration in this way,
Along with improving the dispersibility of the reinforcing fibers,
Entanglement between the reinforcing fibers and the inorganic powder (hydraulic substance) can be improved.
【００１１】次に、該原料スラリーに(1) 吸水性物質と
(2) 増粘剤及び／又は凝集剤と(3)合成樹脂発泡体小片
とを添加し、攪拌混合する。(1) 〜(3) の添加順序は特
に限定されるものではないが、望ましくは(1) 吸水性物
質を添加した後(2) 増粘剤及び／又は凝集剤を添加し、
(2) 増粘剤及び／又は凝集剤の添加と同時に又は(2)増
粘剤及び／又は凝集剤の添加後に(3) 合成樹脂発泡体小
片を添加する。Next, (1) a water-absorbing substance is added to the raw material slurry.
(2) Thickener and / or coagulant and (3) small pieces of synthetic resin foam are added and mixed with stirring. The order of addition of (1) to (3) is not particularly limited, but desirably (1) after adding a water-absorbing substance, (2) adding a thickener and / or a flocculant,
(2) Simultaneously with the addition of the thickener and / or coagulant or (2) after the addition of the thickener and / or coagulant, (3) add the synthetic resin foam pieces.
【００１２】吸水性物質としては、パーライト、焼成シ
ラス、異形フライアッシュ、珪藻土、無機質板廃材の粉
砕物等を使用するのが好ましく、所望により二種以上混
合して使用することもできる。パーライトとしては、真
珠岩を粉砕して加熱発泡させたものを使用することがで
きる。焼成シラスとは、シラスを焼成して多孔質にした
ものをいう。異形フライアッシュとは、ＪＩＳ規格のフ
ライアッシュと異なり、石英粒が残留して、いびつな形
状、穴あき形状等の不定形状を有し、多孔質になってい
るものをいう。As the water-absorbing substance, it is preferable to use pearlite, calcined shirasu, deformed fly ash, diatomaceous earth, pulverized material of inorganic plate waste, and the like, and if desired, two or more kinds can be used in combination. As perlite, perlite obtained by crushing and heating and foaming can be used. And baking Silas refers to those in porous by sintering the Shirasu. Unlike the fly ash of the JIS standard, the irregular fly ash is a porous ash in which quartz grains remain, have an irregular shape such as a distorted shape or a perforated shape, and are porous.
【００１３】無機質板廃材の粉砕物とは、水硬性物質及
び補強繊維を主成分として製造した無機質板の廃材を粉
砕したものをいい、該無機質板は、湿式法、乾式法、半
乾式法のいずれの方法で製造したものであってもよい。
通常の無機質板（廃材）の比重は1.2 前後であるが、そ
の粉砕物は繊維物質部分が露出することから、かさ比重
が0.5 以下となる。該粉砕物は、粒度が1.0 mm以下にな
るまで粉砕したものであるのが好ましい。該吸水性物質
として該無機質板廃材の粉砕物を使用すれば、廃材の有
効利用を図ることもできる。その他吸水性物質として
は、例えば、パルプ化までには至っていない所謂新聞故
紙や、雑誌等をドライ粉砕したパルプ等を使用すること
ができる。[0013] The crushed waste of inorganic plate refers to a crushed waste of inorganic plate produced mainly with hydraulic material and reinforcing fiber. The inorganic plate can be obtained by a wet method, a dry method or a semi-dry method. It may be manufactured by any method.
The specific gravity of a normal inorganic plate (waste material) is around 1.2, but the crushed material has a bulk specific gravity of 0.5 or less because the fiber material portion is exposed. The pulverized product is preferably pulverized until the particle size becomes 1.0 mm or less. If a pulverized waste material of the inorganic plate is used as the water-absorbing substance, the waste material can be effectively used. Other water-absorbing substances include, for example, so-called newspaper waste paper which has not been pulped, pulp obtained by dry-milling magazines and the like.
【００１４】該吸水性物質の原料スラリーに対する添加
量は、上記合成樹脂発泡体小片の浮上を防止して該発泡
体小片がスラリー中に均一に分散できるような量であれ
ばよく、該吸水性物質の吸水性能や該発泡体小片の比重
によって変化するが、通常５〜60重量％である。吸水性
物質の添加により、スラリー中の水分が該吸水性物質に
よって吸収され、スラリーの見掛けの固形分濃度が約17
〜35％まで高くなり、該発泡体小片の浮上が防止され、
該発泡体小片を均一に分散させることができる。また、
該吸水性物質を添加することにより、得られる無機質板
の軽量化を促進できるとともに、合成樹脂発泡体小片を
互いに独立状態に保持でき、得られる無機質板の強度の
みならず、断熱性や吸水性をも向上させることができ
る。なお、スラリーの見掛けの固形分濃度とは、スラリ
ー中において該吸水性物質に吸水されなかった水分と固
形分（水硬性物質＋補強繊維＋シリカ微粉末＋吸水性物
質＋合成樹脂発泡体小片）との合計に対する固形分の重
量百分率をいう。式で表すと、見掛けの固形分濃度
（％）＝〔固形分／｛（水分＋固形分）−吸水性物質に
吸収された水分｝〕×100 となる。The amount of the water-absorbing substance to be added to the raw material slurry may be such that the floating of the synthetic resin foam pieces is prevented and the foam pieces can be uniformly dispersed in the slurry. It varies depending on the water absorption performance of the substance and the specific gravity of the foam piece, but is usually 5 to 60% by weight. By the addition of the water-absorbing substance, the water in the slurry is absorbed by the water-absorbing substance, and the apparent solid content of the slurry is reduced to about 17%.
Up to 35% to prevent the floating of the foam pieces,
The foam pieces can be uniformly dispersed. Also,
By adding the water-absorbing substance, the weight of the obtained inorganic plate can be promoted, and the synthetic resin foam pieces can be held independently of each other. In addition to the strength of the obtained inorganic plate, heat insulation and water absorption can be obtained. Can also be improved. The apparent solid content concentration of the slurry is defined as the moisture and solid content (hydraulic substance + reinforcing fiber + silica fine powder + water absorbent substance + synthetic resin foam piece) in the slurry that has not been absorbed by the water absorbent substance. And the weight percentage of solids relative to the sum of When expressed by the formula, apparent solid concentration (%) = [solid content / {(moisture + solid content) −moisture absorbed by water-absorbing substance}] × 100.
【００１５】ただし、原料スラリー中に添加された上記
吸水性物質は、該スラリー中の水分を吸収するという性
質のみならず、該吸水性物質の表面形状によって該吸水
性物質が添加されたスラリーをパサパサにするという性
質をも有するため、成形時に脱水割れが生じるおそれが
ある。また、該吸水性物質を高い割合で添加した場合に
は、コスト的に高くなるばかりでなく、該吸水性物質は
水硬性物質とは反応しないため、硬化後に強度不足とな
ることもある。そこで本発明では、上記吸水性物質以外
にも増粘剤及び／又は凝集剤を添加する。However, the above-mentioned water-absorbing substance added to the raw material slurry has not only the property of absorbing water in the slurry but also the slurry to which the water-absorbing substance is added depending on the surface shape of the water-absorbing substance. Since it also has the property of making it dry, dewatering cracks may occur during molding. Further, when the water-absorbing substance is added in a high proportion, not only the cost is increased but also the water-absorbing substance does not react with the hydraulic substance, so that the strength may be insufficient after curing. Therefore, in the present invention, a thickener and / or a flocculant are added in addition to the water-absorbing substance.
【００１６】増粘剤を添加することにより、スラリーの
粘性を向上させつつ、ぬめり性を付与することができ
る。これによって、発泡体小片がスラリー中において更
に均一に分散するとともに、該スラリーがパサパサにな
らず、成形時の脱水割れが防止される。By adding a thickener, sliminess can be imparted while improving the viscosity of the slurry. As a result, the foam pieces are more uniformly dispersed in the slurry, and the slurry does not become crisp, thereby preventing dehydration cracking during molding.
【００１７】一方、凝集剤を添加することにより、水硬
性物質が付着した補強繊維に合成樹脂発泡体小片が包み
込まれるような状態となってフロック化が起こるため、
成形時に脱水しやすくなり、成形、特に抄造成形が容易
となる。また、補強繊維に付着した水硬性物質がバイン
ダーとしてそのまま合成樹脂発泡体小片を包み込むた
め、硬化後における該発泡体小片の外周には確実に水硬
性物質の層（マトリックス）が形成され、得られる無機
質板の強度が向上する。さらに、補強繊維に付着した水
硬性物質により、発泡体小片間に水硬性物質の隔壁が形
成されるため、養生時に該発泡体小片を溶融させた場合
であっても独立気泡を形成することができ、得られる無
機質板の吸水抑制力が向上するとともに、耐凍結融解性
能が改善される。さらにまた、該凝集剤の添加により合
成樹脂発泡体小片が補強繊維間に取り込まれやすくなる
ため、該発泡体小片の浮き上がりが効果的に防止され
る。On the other hand, by adding the coagulant, floc formation occurs in a state in which the synthetic resin foam pieces are wrapped in the reinforcing fibers to which the hydraulic substance has adhered.
Dewatering becomes easier during molding, and molding, especially papermaking molding, becomes easier. In addition, since the hydraulic substance attached to the reinforcing fiber wraps the synthetic resin foam piece as it is as a binder, a layer (matrix) of the hydraulic substance is surely formed on the outer periphery of the foam piece after curing, and the resultant is obtained. The strength of the inorganic plate is improved. Furthermore, since the hydraulic substance attached to the reinforcing fibers forms a partition wall of the hydraulic substance between the foam pieces, even when the foam pieces are melted during curing, closed cells can be formed. As a result, the water absorption suppressing power of the obtained inorganic plate is improved, and the freeze-thaw resistance is also improved. Furthermore, the addition of the coagulant makes it easier for the synthetic resin foam pieces to be taken in between the reinforcing fibers, so that the floating of the foam pieces is effectively prevented.
【００１８】上記増粘剤としては、原料スラリーの粘性
を高めることができるもの、換言すればぬめり性を付与
できるものであればよく、吸水膨潤して粘性を高めるも
のであってもよいし、該増粘剤自身が水に溶解して粘性
を高めるものであってもよい。該増粘剤としては、例え
ば、粘土物質、吸水性高分子、水溶性高分子が挙げら
れ、所望により二種以上混合して使用することもでき
る。The thickener may be any one that can increase the viscosity of the raw material slurry, in other words, any one that can impart sliminess, and may be one that absorbs and swells to increase the viscosity. The thickener itself may be dissolved in water to increase the viscosity. Examples of the thickener include a clay substance, a water-absorbing polymer, and a water-soluble polymer. If desired, two or more kinds can be used as a mixture.
【００１９】粘土物質としては、例えば、ベントナイ
ト、カオリン、酸性白土等が挙げられる。吸水性高分子
としては、例えば、カルボキシメチルセルロース系架橋
物、ポリオキシエチレン系架橋物、アクリル酸エステル
−酢酸ビニル系共重合体のケン化物、アクリロニトリル
系共重合体の加水分解物、アクリルアミド系共重合体の
加水分解物、自己架橋型ポリアクリル酸系中和物、アク
リル酸塩系重合体架橋物、アクリル酸塩系共重合体架橋
物、架橋イソブチレン−無水マレイン酸系共重合体の中
和物等が挙げられ、該吸水性高分子の表面が架橋処理さ
れたものであってもよい。Examples of the clay material include bentonite, kaolin, acid clay and the like. Examples of the water-absorbing polymer include carboxymethylcellulose-based crosslinked products, polyoxyethylene-based crosslinked products, saponified acrylate-vinyl acetate copolymers, hydrolyzed acrylonitrile-based copolymers, and acrylamide-based copolymers. Combined hydrolyzate, self-crosslinked polyacrylic acid-based neutralized product, acrylate-based polymer crosslinked product, acrylate-based copolymer crosslinked product, crosslinked isobutylene-maleic anhydride-based copolymer neutralized product And the like, and the surface of the water-absorbing polymer may be cross-linked.
【００２０】水溶性高分子としては、例えば、アクリル
系樹脂、ポリビニルピロリドン、ポリエチレングリコー
ル、カルボキシビニルポリマー、ポリビニルアルコ−
ル、ポリアクリルアミド等が挙げられる。Examples of the water-soluble polymer include acrylic resin, polyvinylpyrrolidone, polyethylene glycol, carboxyvinyl polymer and polyvinyl alcohol.
And polyacrylamide.
【００２１】該増粘剤の原料スラリーに対する添加量
は、該増粘剤の粘性付与性能や発泡体小片の比重によっ
て変化するが、通常0.5 〜15重量％である。The amount of the thickener added to the raw material slurry varies depending on the viscosity imparting performance of the thickener and the specific gravity of the foam pieces, but is usually 0.5 to 15% by weight.
【００２２】上記凝集剤としては、該凝集剤の添加によ
ってスラリーのフロック化が起こりやすいものであれば
よく、例えば、硫酸アルミニウム、ミョウバン、ポリア
クリル酸ソーダ、ポリアクリル酸エステル、ポリアクリ
ルアミド、ポリアミン系樹脂、ジシアンジアミド系樹脂
等が挙げられ、単独で又は２種以上を混合して使用する
ことができる。該凝集剤の原料スラリーに対する添加量
は、通常0.1 〜３重量％である。なお、上記増粘剤及び
凝集剤の両者を添加してもよい。The flocculant may be any flocculant which can be easily flocculated by the addition of the flocculant. Examples thereof include aluminum sulfate, alum, sodium polyacrylate, polyacrylate, polyacrylamide, and polyamine. Resin, dicyandiamide-based resin and the like can be used, and they can be used alone or in combination of two or more. The amount of the coagulant to be added to the raw material slurry is usually 0.1 to 3% by weight. In addition, you may add both the said thickener and a coagulant.
【００２３】合成樹脂発泡体小片としては、発泡ポリス
チレンビーズ、発泡ポリエチレンビーズ、発泡ポリプロ
ピレンビーズ等の合成樹脂発泡ビーズや、発泡ポリスチ
レン、発泡ポリエチレン、発泡ポリプロピレン、発泡ポ
リウレタン等の合成樹脂発泡体の粉砕物を使用すること
ができる。該合成樹脂発泡体小片の粒径は、通常0.5 〜
10mmであるが、１〜３mmであるのが好ましい。また、該
発泡体の発泡倍率は、通常10〜100 倍であるが、60〜80
倍であるのが好ましい。なお、該合成樹脂発泡体小片と
して、発泡倍率の低い予備発泡体の小片を使用すること
もできる。該合成樹脂発泡体小片の添加量は、原料スラ
リーに対して１〜５重量％であるのが好ましく、特に２
重量％前後であるのが好ましい。Examples of the synthetic resin foam pieces include foamed synthetic resin beads such as foamed polystyrene beads, foamed polyethylene beads, and foamed polypropylene beads, and pulverized synthetic resin foams such as foamed polystyrene, foamed polyethylene, foamed polypropylene, and foamed polyurethane. Can be used. The particle size of the synthetic resin foam piece is usually 0.5 to
It is 10 mm, but preferably 1-3 mm. The foaming ratio of the foam is usually 10 to 100 times, but 60 to 80 times.
Preferably it is twice. In addition, a small piece of a preliminary foam having a low expansion ratio can be used as the synthetic resin foam piece. The amount of the synthetic resin foam pieces added is preferably 1 to 5% by weight with respect to the raw material slurry, and especially 2 to 5% by weight.
It is preferable that the amount is around wt%.
【００２４】以上のようにして合成樹脂発泡体小片を均
一に分散させた原料混合物が得られたら、該原料混合物
を所望の形状に成形する。該成形は、抄造法、注型法、
押出法等の通常の方法によって行えばよいが、好ましく
は、周囲に堰を設けた多孔質シート上に該原料混合物を
流し込み、該多孔質シートの裏側から真空吸引脱水し
て、連続式又は回分バッチ方式により抄造フォーミング
する注型抄造法によって成形する。After the raw material mixture in which the synthetic resin foam pieces are uniformly dispersed is obtained as described above, the raw material mixture is formed into a desired shape. The molding is a papermaking method, a casting method,
It may be carried out by a usual method such as an extrusion method, but preferably, the raw material mixture is poured onto a porous sheet provided with a weir around it, and vacuum suction dehydration is performed from the back side of the porous sheet, and the mixture is continuously or batch-wise. It is formed by a casting method in which a sheet is formed by a batch method.
【００２５】上記成形が終了したら、得られた成形体
（マット）を養生硬化させる。該養生硬化は、通常、一
次養生とオートクレーブ養生の２段階で行う。一次養生
は、通常非加熱又は60〜90℃の加熱常圧下で20〜40時間
行う。また、オートクレーブ養生は、通常130 〜180 ℃
で６〜15時間行う。このオートクレーブ養生によって、
上記合成樹脂発泡体小片を溶融させてもよいし、溶融さ
せなくてもよい。溶融させた場合には、該発泡体小片が
存在していた部分は気泡となり、該発泡体小片を構成す
る合成樹脂が分散化させられることから、得られる無機
質板は防火性に優れたものとなる。一方、溶融させない
場合には、該合成樹脂発泡体小片は互いに独立状態を維
持し、独立気泡が形成されるため、断熱性に優れたもの
となる。該養生硬化後、必要によりトリミング、塗装を
施し、本発明の軽量無機質板とする。When the above-mentioned molding is completed, the obtained molded body (mat) is cured and cured. The curing is usually performed in two stages of primary curing and autoclave curing. The primary curing is usually carried out for 20 to 40 hours without heating or at a heating normal pressure of 60 to 90 ° C. In addition, the autoclave curing is usually performed at 130 to 180 ° C.
For 6-15 hours. With this autoclave curing,
The synthetic resin foam piece may or may not be melted. When melted, the portion where the foam small pieces were present becomes bubbles, and the synthetic resin constituting the foam small pieces is dispersed, so that the obtained inorganic plate has excellent fire resistance. Become. On the other hand, when not melted, the synthetic resin foam pieces maintain an independent state from each other and form closed cells, and thus have excellent heat insulating properties. After curing and curing, trimming and painting are performed as necessary to obtain a lightweight inorganic plate of the present invention.
【００２６】以上のようにして得られる本発明の軽量無
機質板においては、気泡（合成樹脂発泡体小片）が均一
に分散しており、強度の低下や断熱性能のばらつきが防
止されている。In the lightweight inorganic plate of the present invention obtained as described above, bubbles (small pieces of synthetic resin foam) are uniformly dispersed, and a decrease in strength and a variation in heat insulation performance are prevented.
【００２７】以上説明した本発明の軽量無機質板は、合
成樹脂発泡体小片を含む単層のものであるが、本発明の
軽量無機質板は、粒径の大きい合成樹脂発泡体小片（気
泡）を含む層と粒径の小さい合成樹脂発泡体小片（気
泡）を含む層とからなる２層構造のもの、又は粒径の大
きい合成樹脂発泡体小片（気泡）を含む層を芯層とし、
粒径の小さい合成樹脂発泡体小片（気泡）を含む層を表
裏層とした３層構造のものであってもよい。ここで、粒
径の大きい合成樹脂発泡体小片とは、粒径が２mm以上の
ものをいい、好ましくは粒径が２〜４mmのものである。
一方、粒径の小さい合成樹脂発泡体小片とは、粒径が１
mm以下のものをいい、好ましくは粒径が0.5 〜１mmのも
のである。The lightweight inorganic plate of the present invention described above is a single layer containing a small piece of synthetic resin foam. However, the lightweight inorganic plate of the present invention contains small pieces of synthetic resin foam (bubbles) having a large particle size. A core layer having a two-layer structure including a layer containing a synthetic resin foam piece (bubbles) having a small particle size, or a layer containing a synthetic resin foam piece (bubbles) having a large particle size;
It may have a three-layer structure in which a layer containing small pieces (bubbles) of synthetic resin foam having a small particle size is a front and back layer. Here, a synthetic resin foam small piece having a large particle size refers to a particle having a particle size of 2 mm or more, preferably a particle having a particle size of 2 to 4 mm.
On the other hand, a synthetic resin foam small piece having a small particle size
mm or less, preferably those having a particle size of 0.5 to 1 mm.
【００２８】このような軽量無機質板の製造方法の一例
（注型抄造法）を説明する。まず、上記単層の軽量無機
質板における原料混合物の調製方法と同様の方法によっ
て調製した原料混合物であって、含まれる合成樹脂発泡
体小片の粒径が２mm以上であるもの（第１の原料混合
物）と、水硬性物質、補強繊維及び粒径が１mm以下の合
成樹脂発泡体小片、所望により更にシリカ微粉末を含む
第２の原料混合物とを調製する。該第２の原料混合物に
おいて、粒径が１mm以下の合成樹脂発泡体小片を均一に
分散させるためには、該第２の原料混合物は上記第１の
原料混合物の調製方法と同様の方法によって調製するの
が好ましい。An example of a method for producing such a lightweight inorganic plate (cast papermaking method) will be described. First, a raw material mixture prepared by a method similar to the method for preparing the raw material mixture in the single-layer lightweight inorganic plate, wherein the particle size of the synthetic resin foam pieces included is 2 mm or more (first raw material mixture) ) And a second raw material mixture containing a hydraulic substance, reinforcing fibers, and a small piece of synthetic resin foam having a particle size of 1 mm or less, and, if desired, further containing fine silica powder. In order to uniformly disperse the synthetic resin foam pieces having a particle size of 1 mm or less in the second raw material mixture, the second raw material mixture is prepared by a method similar to the method for preparing the first raw material mixture. Is preferred.
【００２９】次に、該第１の原料混合物を、周囲に堰を
設けた多孔質シート上に流し込んで抄造しながら、該第
１の原料混合物の上に該第２の原料混合物を流し込んで
抄造するか、該第２の原料混合物を、多孔質シート上に
流し込んで抄造しながら、該第２の原料混合物の上に該
第１の原料混合物を流し込んで抄造するか、該第２の原
料混合物を多孔質シート上に流し込んで抄造しながら、
該第１の原料混合物を該第２の原料混合物の上に流し込
んで抄造し、更に該第１の原料混合物の上に該第２の原
料混合物を流し込んで抄造する。得られた２層又は３層
の抄造マットは、前述した方法により養生硬化すればよ
い。あるいは、該第１の原料混合物を押出法等により成
形して第１のマットとし、同様にして該第２の原料混合
物を成形して第２のマットとし、該第１のマットの片面
又は両面に該第２のマットを積層し、養生硬化すること
もできる。Next, the second raw material mixture is poured onto the first raw material mixture while the first raw material mixture is poured on a porous sheet provided with a weir around the first raw material mixture. Or the second raw material mixture is poured onto a porous sheet to form a paper, and the first raw material mixture is poured onto the second raw material mixture to form a paper, or the second raw material mixture is formed. While pouring into a porous sheet and making paper,
The first raw material mixture is poured onto the second raw material mixture to form a paper, and the second raw material mixture is poured onto the first raw material mixture to form a paper. The obtained two-layer or three-layer papermaking mat may be cured and cured by the method described above. Alternatively, the first raw material mixture is formed by an extrusion method or the like into a first mat, and similarly, the second raw material mixture is formed into a second mat, and one or both surfaces of the first mat are formed. The second mat can be laminated and cured by curing.
【００３０】このようにして、粒径の大きい合成樹脂発
泡体小片（気泡）を含む極軽量な裏（表）層と、粒径の
大きい合成樹脂発泡体小片に起因する大きな凹凸が表面
に表れない略平滑で軽量な表（裏）層との２層構造から
なる軽量無機質板、又は粒径の大きい合成樹脂発泡体小
片（気泡）を含む極軽量な芯層と、粒径の大きい合成樹
脂発泡体小片に起因する大きな凹凸が表面に表れない略
平滑で軽量な表裏層との３層構造からなる軽量無機質板
が得られる。In this way, an extremely lightweight back (front) layer containing small pieces of synthetic resin foam (bubbles) having a large particle size and large irregularities caused by the small pieces of synthetic resin foam having a large particle size appear on the surface. A lightweight inorganic plate having a two-layer structure with a substantially smooth and lightweight front (back) layer, or an extremely lightweight core layer containing small pieces of synthetic resin foam (bubbles) having a large particle size, and a synthetic resin having a large particle size A lightweight inorganic plate having a three-layer structure of a substantially smooth and lightweight front and back layer in which large irregularities due to the foam pieces do not appear on the surface is obtained.
【００３１】また、本発明の無機質板は、合成樹脂発泡
体小片（気泡）を含む層と合成樹脂発泡体小片（気泡）
を含まない層とからなる２層構造のもの、又は合成樹脂
発泡体小片（気泡）を含む層を芯層とし、合成樹脂発泡
体小片（気泡）を含まない層を表裏層とした３層構造の
ものであってもよい。Further, the inorganic plate of the present invention comprises a layer containing synthetic resin foam pieces (cells) and a layer containing synthetic resin foam pieces (cells).
Or a three-layer structure having a layer containing synthetic resin foam pieces (bubbles) as a core layer and a layer containing no synthetic resin foam pieces (bubbles) as front and back layers. May be used.
【００３２】このような軽量無機質板を製造するには、
上記単層の軽量無機質板における原料混合物の調製方法
と同様の方法によって調製した第１の原料混合物と、水
硬性物質及び補強繊維、所望により更にシリカ微粉末を
含み、かつ合成樹脂発泡体小片を含まない第２の原料混
合物とを調製し、上記２層構造又は３層構造の軽量無機
質板と同様の方法により、２層又は３層の抄造マットを
製造するか、抄造マットを２層又は３層に積層し、養生
硬化する。To manufacture such a lightweight inorganic plate,
The first raw material mixture prepared by the same method as the method for preparing the raw material mixture in the single-layer lightweight inorganic plate, a hydraulic substance and reinforcing fibers, optionally further containing fine silica powder, and a synthetic resin foam piece A second raw material mixture containing no raw material is prepared, and a two-layer or three-layer papermaking mat is manufactured by a method similar to the above-described two-layer or three-layer lightweight inorganic plate, or a two-layer or three-layer papermaking mat is prepared. The layers are laminated and cured.
【００３３】このようにして、合成樹脂発泡体小片（気
泡）を含む軽量な裏（表）層と、合成樹脂発泡体小片に
起因する凹凸が表面に表れない平滑な表（裏）層との２
層構造からなる軽量無機質板、又は合成樹脂発泡体小片
（気泡）を含む軽量な芯層と、合成樹脂発泡体小片に起
因する大きな凹凸が表面に表れない平滑な表裏層との３
層構造からなる軽量無機質板が得られる。なお、本発明
の軽量無機質板は、粒径の大きい合成樹脂発泡体小片
（気泡）を含む層を芯層とし、合成樹脂発泡体小片を含
まない層を表（裏）層とし、粒径の小さい合成樹脂発泡
体小片（気泡）を含む層を裏（表）層とした３層構造の
ものであってもよい。In this way, the light-weight back (front) layer containing the synthetic resin foam pieces (air bubbles) and the smooth front (back) layer in which the irregularities due to the synthetic resin foam pieces do not appear on the surface. 2
A light-weight inorganic plate having a layer structure or a light-weight core layer containing small pieces of synthetic resin foam (bubbles); and a smooth front and back layer in which large irregularities due to the small pieces of synthetic resin foam do not appear on the surface.
A lightweight inorganic plate having a layer structure is obtained. In addition, the lightweight inorganic plate of the present invention has a layer containing synthetic resin foam small pieces (bubbles) having a large particle size as a core layer, a layer not containing synthetic resin foam pieces as a front (back) layer, and It may have a three-layer structure in which a layer containing small synthetic resin foam pieces (bubbles) is a back (front) layer.
【００３４】[0034]
【実施例】以下、実施例により本発明を更に具体的に説
明するが、本発明の範囲はこれらの実施例に限定される
ものではない。EXAMPLES Hereinafter, the present invention will be described more specifically with reference to Examples, but the scope of the present invention is not limited to these Examples.
【００３５】〔実施例１〜５〕表１に示す混合割合で各
原料を添加混合して攪拌し、スラリー状の原料混合物を
調製した。混合順序としては、まずセメント、珪砂及び
パルプを水に添加混合し、次いでパーライトを添加し、
その後ベントナイト（増粘剤）又はポリアクリルアミド
（凝集剤）を添加すると同時に発泡ポリスチレンビーズ
（粒径：３mm，発泡倍率：60倍）を添加混合した。得ら
れた原料混合物のスランプ値を測定した後、該原料混合
物を注型抄造法によって厚さ５cmのマットに成形した。
このマットにおいて、パルプの分散性、発泡ポリスチレ
ンビーズの分散性及び抄造作業性を判断した。Examples 1 to 5 Each raw material was added and mixed at a mixing ratio shown in Table 1 and stirred to prepare a slurry-like raw material mixture. As a mixing order, first, cement, silica sand and pulp were added to water and mixed, then pearlite was added,
Thereafter, bentonite (thickener) or polyacrylamide (coagulant) was added, and at the same time, expanded polystyrene beads (particle diameter: 3 mm, expansion ratio: 60 times) were added and mixed. After measuring the slump value of the obtained raw material mixture, the raw material mixture was formed into a mat having a thickness of 5 cm by a casting method.
In this mat, the dispersibility of pulp, the dispersibility of expanded polystyrene beads, and the workability of papermaking were determined.
【００３６】スランプ値は、ＪＩＳ Ａ １１７３ ポ
リマーセメントモルタルのスランプ試験法に準拠して測
定した。パルプの分散性及び発泡ポリスチレンビーズの
分散性の判断は、注型抄造法で成形したマットの内部を
目視により確認することによって行った。抄造作業性の
判断は、原料混合物を濾水帯（フェルト）上に流下させ
抄造脱水するときの該原料混合物の固形分の広がり状況
（流動性）を目視により確認することによって行った。The slump value was measured according to the JIS A 1173 polymer cement mortar slump test method. The dispersibility of the pulp and the dispersibility of the expanded polystyrene beads were determined by visually confirming the inside of the mat formed by the casting method. The determination of the papermaking workability was performed by visually checking the spread state (fluidity) of the solid content of the raw material mixture when the raw material mixture was allowed to flow onto a drainage zone (felt) and subjected to papermaking dehydration.
【００３７】次に、上記マットを80℃で12時間一次養生
し、次いで180 ℃で12時間オートクレーブ養生を行い、
軽量無機質板を得た。得られた軽量無機質板について、
曲げ強度及び圧縮強度を測定した。曲げ強度は、ＪＩＳ
Ａ １４０８に準拠して測定し、圧縮強度は、ＪＩＳ
Ｋ ６９１１に準拠して測定した。それぞれの結果を
表２に示す。Next, the mat was primary cured at 80 ° C. for 12 hours, and then autoclaved at 180 ° C. for 12 hours.
A lightweight inorganic plate was obtained. About the obtained lightweight inorganic plate,
Flexural strength and compressive strength were measured. The bending strength is JIS
A is measured in accordance with A 1408, and the compressive strength is measured according to JIS
It was measured according to K 6911. Table 2 shows the results.
【００３８】〔比較例１〜３〕表１に示す混合割合で各
原料を添加混合して攪拌し、スラリー状の原料混合物を
調製した。混合順序としては、まずセメント、珪砂及び
パルプを水に添加混合し、次いでパーライトを添加し、
その後発泡ポリスチレンビーズを添加混合した。該原料
混合物を使用して実施例１〜５と同様にして軽量無機質
板を製造するとともに、同様の試験及び測定を行った。
結果を表２に示す。Comparative Examples 1 to 3 Each raw material was added and mixed at the mixing ratio shown in Table 1 and stirred to prepare a slurry-like raw material mixture. As a mixing order, first, cement, silica sand and pulp were added to water and mixed, then pearlite was added,
Thereafter, expanded polystyrene beads were added and mixed. Using the raw material mixture, a lightweight inorganic plate was manufactured in the same manner as in Examples 1 to 5, and the same test and measurement were performed.
Table 2 shows the results.
【００３９】[0039]
【表１】 [Table 1]
【００４０】[0040]
【表２】 [Table 2]
【００４１】表１及び表２から明らかなように、本発明
によれば、パルプ及び発泡ポリスチレンビーズが均一に
分散し、曲げ強度及び圧縮強度に優れた軽量無機質板を
良好な作業性で製造することができる。As is clear from Tables 1 and 2, according to the present invention, pulp and expanded polystyrene beads are uniformly dispersed to produce a lightweight inorganic plate excellent in bending strength and compressive strength with good workability. be able to.
【００４２】[0042]
【発明の効果】本発明によれば、原料混合物中、合成樹
脂発泡体小片が均一に分散し、それによって該合成樹脂
発泡体小片又は気泡が均一に分散した軽量無機質板を得
ることができる。According to the present invention, the synthetic resin foam small pieces are uniformly dispersed in the raw material mixture, thereby obtaining a lightweight inorganic plate in which the synthetic resin foam small pieces or bubbles are uniformly dispersed.
Claims (5)
を水に分散させ、これに吸水性物質と増粘剤及び／又は
凝集剤とを添加し、かつ任意の時点で合成樹脂発泡体小
片を添加したスラリーから成形したマットの硬化物から
なることを特徴とする軽量無機質板。A raw material containing a hydraulic substance and a reinforcing fiber is dispersed in water, a water-absorbing substance and a thickener and / or a flocculant are added thereto, and a synthetic resin foam small piece is added at any time. A light weight inorganic plate comprising a cured product of a mat formed from a slurry to which is added.
は両面に、 水硬性物質及び補強繊維を含有する原料を水に分散さ
せ、これに吸水性物質と増粘剤及び／又は凝集剤とを添
加し、かつ任意の時点で請求項１記載のマットに混合さ
れている合成樹脂発泡体小片よりも小径な合成樹脂発泡
体小片を添加したスラリーから成形したマットの硬化
物、及び／又は水硬性物質及び補強繊維を含有し合成樹
脂発泡体小片を含有しない原料を水に分散させたスラリ
ーから成形したマットの硬化物を積層したことを特徴と
する軽量無機質板。2. A material containing a hydraulic material and a reinforcing fiber is dispersed in water on one or both surfaces of the cured product of the mat according to claim 1, and a water-absorbing material, a thickener and / or a flocculant are added thereto. And a cured product of a mat formed from a slurry to which a synthetic resin foam piece smaller in diameter than the synthetic resin foam piece mixed with the mat according to claim 1 at any time is added, and / or A lightweight inorganic plate, comprising a cured mat formed from a slurry in which a raw material containing a hydraulic substance and reinforcing fibers and not containing synthetic resin foam pieces is dispersed in water.
ス、異形フライアッシュ、珪藻土及び無機質板廃材の粉
砕物からなる群から選ばれた少なくとも１種である請求
項１又は２記載の軽量無機質板。3. The lightweight inorganic plate according to claim 1, wherein the water-absorbing substance is at least one selected from the group consisting of perlite, calcined shirasu, deformed fly ash, diatomaceous earth, and pulverized inorganic plate waste. .
び水溶性高分子からなる群から選ばれた少なくとも１種
である請求項１乃至３いずれか記載の軽量無機質板。4. The lightweight inorganic plate according to claim 1, wherein said thickener is at least one selected from the group consisting of a clay material, a water-absorbing polymer and a water-soluble polymer.
バン、ポリアクリル酸ソーダ、ポリアクリル酸エステ
ル、ポリアクリルアミド、ポリアミン系樹脂及びジシア
ンジアミド系樹脂からなる群から選ばれた少なくとも１
種である請求項１乃至４いずれか記載の軽量無機質板。5. The method according to claim 1, wherein the coagulant is at least one selected from the group consisting of aluminum sulfate, alum, sodium polyacrylate, polyacrylate, polyacrylamide, polyamine resin and dicyandiamide resin.
The lightweight inorganic plate according to any one of claims 1 to 4, which is a seed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10279256A JP2000109380A (en) | 1998-10-01 | 1998-10-01 | Lightweight inorganic board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10279256A JP2000109380A (en) | 1998-10-01 | 1998-10-01 | Lightweight inorganic board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000109380A true JP2000109380A (en) | 2000-04-18 |
Family
ID=17608635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10279256A Withdrawn JP2000109380A (en) | 1998-10-01 | 1998-10-01 | Lightweight inorganic board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000109380A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002068855A (en) * | 2000-09-04 | 2002-03-08 | Ask Sanshin Engineering Co Ltd | Lightweight and heat insulating concrete |
| JP2002338373A (en) * | 2001-05-17 | 2002-11-27 | Koa Funenban Kogyo Kk | Method of manufacturing wooden cement board and wooden cement board |
| JP2005194144A (en) * | 2004-01-08 | 2005-07-21 | Nichiha Corp | Method for producing lightweight inorganic board |
| JP2006151730A (en) * | 2004-11-29 | 2006-06-15 | Nichiha Corp | Light-weight inorganic plate and its manufacturing method |
| JP2006265063A (en) * | 2005-03-25 | 2006-10-05 | Nichiha Corp | Lightweight inorganic board and method for producing the same |
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| JP2009120446A (en) * | 2007-11-15 | 2009-06-04 | Shinei Sangyo Kk | Heat insulating material |
| CN102892666A (en) * | 2010-06-08 | 2013-01-23 | 日产自动车株式会社 | Vehicle battery pack housing structure |
| CN104140226A (en) * | 2014-08-06 | 2014-11-12 | 鹤壁库博瑞机械有限公司 | Thermal insulation board, cement mortar for outer wrapping casing layer of composite thermal insulation board and producing technique of thermal insulation board |
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-
1998
- 1998-10-01 JP JP10279256A patent/JP2000109380A/en not_active Withdrawn
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002068855A (en) * | 2000-09-04 | 2002-03-08 | Ask Sanshin Engineering Co Ltd | Lightweight and heat insulating concrete |
| JP2002338373A (en) * | 2001-05-17 | 2002-11-27 | Koa Funenban Kogyo Kk | Method of manufacturing wooden cement board and wooden cement board |
| JP4673556B2 (en) * | 2004-01-08 | 2011-04-20 | ニチハ株式会社 | Manufacturing method of lightweight inorganic board |
| JP2005194144A (en) * | 2004-01-08 | 2005-07-21 | Nichiha Corp | Method for producing lightweight inorganic board |
| JP2006151730A (en) * | 2004-11-29 | 2006-06-15 | Nichiha Corp | Light-weight inorganic plate and its manufacturing method |
| JP2006265063A (en) * | 2005-03-25 | 2006-10-05 | Nichiha Corp | Lightweight inorganic board and method for producing the same |
| JP2009515808A (en) * | 2005-11-16 | 2009-04-16 | ジーイーオー２ テクノロジーズ，インク． | System for extruding porous carriers |
| JP2009120446A (en) * | 2007-11-15 | 2009-06-04 | Shinei Sangyo Kk | Heat insulating material |
| CN102892666A (en) * | 2010-06-08 | 2013-01-23 | 日产自动车株式会社 | Vehicle battery pack housing structure |
| CN104140226A (en) * | 2014-08-06 | 2014-11-12 | 鹤壁库博瑞机械有限公司 | Thermal insulation board, cement mortar for outer wrapping casing layer of composite thermal insulation board and producing technique of thermal insulation board |
| CN104140226B (en) * | 2014-08-06 | 2015-11-18 | 鹤壁库博瑞机械有限公司 | Composite insulation boards outer cladding shell sand-cement slurry and warming plate and production technique thereof |
| JP2021031324A (en) * | 2019-08-21 | 2021-03-01 | 株式会社Ｌｉｘｉｌ | Inorganic porous molded body |
| JP7304237B2 (en) | 2019-08-21 | 2023-07-06 | 株式会社Lixil | Inorganic porous molded body |
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