JPS5992965A - Manufacture of construction board - Google Patents
Manufacture of construction boardInfo
- Publication number
- JPS5992965A JPS5992965A JP20280882A JP20280882A JPS5992965A JP S5992965 A JPS5992965 A JP S5992965A JP 20280882 A JP20280882 A JP 20280882A JP 20280882 A JP20280882 A JP 20280882A JP S5992965 A JPS5992965 A JP S5992965A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- lightweight aggregate
- construction board
- foamable resin
- board
- 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
- 238000010276 construction Methods 0.000 title claims description 23
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 229920005989 resin Polymers 0.000 claims description 45
- 239000011347 resin Substances 0.000 claims description 45
- 239000011230 binding agent Substances 0.000 claims description 12
- 239000006260 foam Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000004927 clay Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 4
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 2
- 239000004088 foaming agent Substances 0.000 claims description 2
- 239000005011 phenolic resin Substances 0.000 claims description 2
- 229920001225 polyester resin Polymers 0.000 claims description 2
- 239000004645 polyester resin Substances 0.000 claims description 2
- 230000000717 retained effect Effects 0.000 claims 1
- 239000000203 mixture Substances 0.000 description 8
- 239000012792 core layer Substances 0.000 description 7
- 239000010410 layer Substances 0.000 description 7
- 239000002994 raw material Substances 0.000 description 6
- 239000012783 reinforcing fiber Substances 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 239000010881 fly ash Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 206010011878 Deafness Diseases 0.000 description 1
- 101100074333 Pisum sativum LECA gene Proteins 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Panels For Use In Building Construction (AREA)
- Curing Cements, Concrete, And Artificial Stone (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】
この発明は発泡性樹脂をバインダとする軽量な建築用板
に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lightweight construction board using a foamable resin as a binder.
建築用板は、低比重のものから高比重のものまでさまざ
！あって種類が多く、いろいろな目的に使用されている
が、低比重すなわち軽量な建築用板としては、セメント
や樹脂をバインダとし、軽量骨材を含むものが最も一般
的に′使用されている。Architectural boards range from low specific gravity to high specific gravity! There are many types and they are used for various purposes, but the most commonly used low-density, or lightweight, construction boards are those that use cement or resin as a binder and contain lightweight aggregate. .
軽量骨材は安価で、圧縮強度が強く、断熱性も良いので
、これを含ませると、製造コストが低く、強度および断
熱性のすぐれた建築用板が得られるからである。しかし
ながら、他方では、軽量骨材を含ませるために、曲げ強
度や圧縮強度等の性能にムラができてしまい、全体が均
質な建築用板を得ることが困難となってい牟。また、多
量につくる場合でも、個々の品質が安定しなかった。そ
れは、つぎのような理由による。軽量骨材は、普通、発
泡粘土あるいは膨張頁岩を主体として用いるが、これら
が球状をしているために、密に詰める（はぼ最密充填に
する）ことが非常に困難で、製造中において、原材料′
（ｉ−聾に充填したとき、軽量骨材間がバインダで埋め
られずに隙間ができてしまうことが多い。そのため、つ
ぎにバインダを硬化させると、得られる建築用ボード中
に隙間がそのまま残シ、性能にムラができるのである。This is because lightweight aggregate is inexpensive, has high compressive strength, and has good heat insulation properties, so if it is included, a construction board with low manufacturing costs and excellent strength and heat insulation properties can be obtained. However, on the other hand, since the lightweight aggregate is included, performance such as bending strength and compressive strength becomes uneven, making it difficult to obtain a uniform architectural board as a whole. Furthermore, even when produced in large quantities, the quality of each individual product was not stable. This is due to the following reasons. Lightweight aggregates are usually mainly made of expanded clay or expanded shale, but because they are spherical, it is very difficult to pack them densely (closest packing), and it is difficult to pack them tightly during production. ,raw materials'
(When filling the i-deaf, gaps between the lightweight aggregates are often not filled with the binder. Therefore, when the binder is hardened next, the gaps remain in the resulting construction board. This results in uneven performance.
隙間を埋めるため、原材料を型に充填したあと圧力をか
けることが考えられるが、このようにすると軽量骨材が
つぶれてその特性が損なわれてしまう恐れが多い。In order to fill the gaps, pressure may be applied after filling the mold with raw materials, but this often causes the lightweight aggregate to collapse and lose its properties.
そこで、バインダとして発泡性の樹り旨を用いる製造方
法が考え出されている。原材料を型に入れた時に隙間が
できても、発泡性樹脂は、硬化するとき発泡して隙間を
埋める。そのうえ、＠量化にも寄与する。しかし、この
製造方法でもやはり、全体が均質な建築用板を得ること
、および、個々の品質を安定させることは困難であった
。それは、軽量骨材の粒径が大きい（２〜１０ｍｍ）う
えに、建築用板の性能向上の効果を高めるには軽量骨材
の混合率を多くしなければならないので、軽量骨材と樹
脂とを均一に混合するのが非常に困難となっているから
である。また、たとえ、軽量骨材と樹脂とを均一に混合
できたとしても、原材料を型に入れたあと樹脂を発泡さ
せると、泡が下から上へ移動して軽量骨材が持ち上げら
れてしまうことが多く、やはシ、均質な建築用板を安定
して得ることは困難である。Therefore, a manufacturing method has been devised that uses foamable wood as a binder. Even if there are gaps when raw materials are placed in a mold, foamable resin will foam and fill the gaps when it hardens. Moreover, it also contributes to @quantification. However, even with this manufacturing method, it is still difficult to obtain a uniform architectural board as a whole and to stabilize the quality of each component. This is because the particle size of lightweight aggregate is large (2 to 10 mm), and the mixing ratio of lightweight aggregate must be increased to increase the effect of improving the performance of construction boards. This is because it is extremely difficult to mix them uniformly. Furthermore, even if the lightweight aggregate and resin can be mixed uniformly, if the resin is foamed after the raw materials are put into the mold, the foam will move from the bottom to the top and lift the lightweight aggregate. Therefore, it is difficult to stably obtain homogeneous construction boards.
発明者らは、バインダとして軽量化に有利な発泡性樹脂
を用いて、全体が均質な建築用板を安定して得ることの
できる製法を開発するため研究を重ねた。その結果、発
泡性樹脂を軽量骨材表面に付着保持させておいて型に充
填するようにすればよいということを見出し、ここにこ
の発明を完成した。The inventors have conducted repeated research to develop a manufacturing method that can stably obtain homogeneous architectural boards throughout using a foamable resin that is advantageous for weight reduction as a binder. As a result, they discovered that it is sufficient to attach and hold the foamable resin to the surface of the lightweight aggregate before filling it into a mold, and have now completed this invention.
すなわち、この発明は、発泡性樹脂をバインダとし軽量
骨材を含む材料を型に充填し、圧締しつつ発泡硬化させ
ることによって建築用板を得るにあたシ、発泡性樹脂を
軽量骨材表面に付着保持させて訃いて型に充填すること
を特徴とする建築用板の製法をその要旨とする。以下、
この発明の詳細な説明する。That is, the present invention uses foamable resin as a binder and fills a material containing lightweight aggregate into a mold, and foams and hardens the material while pressing, thereby obtaining a construction board. The gist of this invention is a method for manufacturing architectural boards, which is characterized by adhering to the surface and filling the molds. below,
This invention will be explained in detail.
ここで、バインダとなる発泡性樹脂としては、ポリエス
テル樹脂、フェノール樹脂、塩化ビニル樹脂のそれぞれ
に発泡剤（発泡材料）を加えたもの、あるいはウレタン
樹脂等を用いる。これらのうちの２種以上を同時に用い
ることもある。発泡性樹脂の形状は液体でも粉体でもよ
い。Here, as the foamable resin serving as the binder, polyester resin, phenol resin, vinyl chloride resin to which a foaming agent (foaming material) is added, urethane resin, or the like is used. Two or more of these may be used simultaneously. The form of the foamable resin may be liquid or powder.
軽量骨材としては、発泡粘土や膨張頁岩等を用いる。発
泡粘土および膨張頁岩の比重は普通０．２〜１．２程度
、直径は２〜２０ｍｍ程度である。発泡粘土としてはデ
ンマーク製のＬＥＣＡ等があり、膨張頁岩としては住友
金属鉱山株式会社製の、ピルトン等がある。なお、建築
用板の性能の向上その他の目的で、必要に応じて発泡性
樹脂および軽量骨材以外の原材料を使用することもある
。As the lightweight aggregate, foamed clay, expanded shale, etc. are used. The specific gravity of expanded clay and expanded shale is usually about 0.2 to 1.2, and the diameter is about 2 to 20 mm. Examples of expanded clay include LECA manufactured by Denmark, and examples of expanded shale include Pilton manufactured by Sumitomo Metal Mining Co., Ltd. Note that raw materials other than foamable resin and lightweight aggregate may be used as necessary to improve the performance of architectural boards or for other purposes.
前記のような発泡性樹脂および軽量骨材を用い、つぎの
ようにして建築用板をつくる。A construction board is made in the following manner using the foamable resin and lightweight aggregate as described above.
まず、軽量骨材の表面を水等で湿らせる。軽量骨材とし
て発泡粘土あるいは膨張頁岩を用い、これらの表面を水
で湿らせる場合は、含水率をｉ。First, the surface of the lightweight aggregate is moistened with water or the like. When using expanded clay or expanded shale as lightweight aggregate and moistening the surface with water, the moisture content is i.
〜３ （１％程度とするのがよい。発泡粘土や膨張頁岩
は表層のシェル（からンとその内部の発泡層からできて
いるが、内部は独立気泡で構成さ詐ているので吸水はし
ない。しかし、シェルは吸水するので、野積みされて保
管された軽量骨材を入荷した場合は、入荷時、すでに１
０係程度含水しているのが普通である。したがって、こ
れらの含水率を１０〜３０％程度とする場合は、最初か
ら含水していることに考慮して調整しなければならない
。~3 (It is best to keep it at about 1%. Expanded clay and expanded shale are made of a surface shell and a foam layer inside, but the inside is composed of closed cells and does not absorb water. However, since shells absorb water, if lightweight aggregates that have been piled up and stored in the open are received, it is already 1
It is normal for it to contain about 0% water. Therefore, when setting the water content of these to about 10 to 30%, the adjustment must be made taking into account that they contain water from the beginning.
軽量骨材の表面を湿らせたあと、発泡性樹脂を軽量骨材
の表面に付着保持させる。発泡性樹脂が粉体の場合は、
これを軽量骨材にまぶし、液体の場合は、これを軽量骨
材に塗布する等して付着保持させるとよい。軽量骨材の
表面が湿っていると、発泡性樹脂が粉体、あるいはウレ
タン樹脂のような粘度の高い液体のどちらであっても付
着保持が容易に行なわれる。軽量骨材および発泡性樹脂
以外の材料を用いる場合は、他の材料を発泡性樹脂とと
もに軽量骨材に付着保持させる。After the surface of the lightweight aggregate is moistened, the foamable resin is adhered to and held on the surface of the lightweight aggregate. If the foamable resin is powder,
It is best to sprinkle this on the lightweight aggregate, and if it is a liquid, apply it to the lightweight aggregate to keep it attached. If the surface of the lightweight aggregate is moist, it will be easier to adhere and maintain the foamable resin, whether it is a powder or a highly viscous liquid such as urethane resin. When a material other than lightweight aggregate and foamable resin is used, the other material is adhered and held to the lightweight aggregate together with the foamable resin.
配合原料の固形分基準で、軽量骨材は６０重量％以上８
０重量係以下使用するようにし、発泡性樹脂は２０重量
多以上４０重量％以下使用するようにするのが好ましい
。このような配合にすると、低比重（０，５〜０．９）
で高強度（２００ｋｇｋ蚊口な建築用板が得られる。Based on the solid content of the blended raw materials, lightweight aggregate is 60% by weight or more8
It is preferable to use less than 0% by weight, and use the foamable resin in an amount of 20% by weight or more and 40% by weight or less. With such a combination, low specific gravity (0.5-0.9)
A high-strength (200 kg) construction board can be obtained.
つぎに、表面に樹脂が付着保持（コーティング）された
軽量骨材を型に入れ、圧締するとともに発泡性樹脂を発
泡硬化させて圧締成型を行なえば建築用板が得られる。Next, a lightweight aggregate whose surface is coated with a resin is put into a mold and pressed together, and the foamable resin is foamed and hardened to perform pressing molding to obtain a construction board.
発泡性樹脂としてウレタン樹脂を用いる場合は、２〜３
時間冷圧して圧締成型を行なう。発泡性樹脂として熱硬
化性樹脂を含むものを用いる場合は、それぞれの成型条
件に合わせて熱圧して圧締成型を行なう。When using urethane resin as the foamable resin, 2 to 3
Cold press for a period of time to perform compression molding. When a foamable resin containing a thermosetting resin is used, compression molding is performed by hot pressing in accordance with the respective molding conditions.
この発明にかかる建築用板の製法では、前記のように、
発泡性樹脂を軽量骨材に付着保持させるので、両者を均
一に混合するのが非常に容易である。そのうえ、このよ
うな軽量骨材を型に入れて圧締すると、軽量骨材全体が
容易に堅く固められるので、発泡性樹脂が発泡しても、
上に持ち上げられる恐れがほとんどない。したがって、
この製法によれば全体が均質な建築用板が安定して得ら
れるのである。In the method for manufacturing a construction board according to the present invention, as described above,
Since the foamable resin is adhered to the lightweight aggregate, it is very easy to uniformly mix the two. Furthermore, when such lightweight aggregate is placed in a mold and compressed, the entire lightweight aggregate is easily solidified, so even if the expandable resin foams,
There is little fear of being lifted up. therefore,
According to this manufacturing method, architectural boards that are homogeneous throughout can be stably obtained.
なお、建築用板にスキン層を設ける場合、すなわち、第
１図に示されているように、コア層１の上下面にスキン
層（表層）２を備えた建築用板（３層サンドイッチボー
ド）をつくる場合は、たとえば、つぎのようにする。図
中、３は補強繊維。In addition, when a skin layer is provided on a construction board, that is, as shown in FIG. For example, if you want to create one, do the following: In the figure, 3 is reinforcing fiber.
４は軽量骨材、５は発泡硬化樹脂（有機発泡体）であっ
て、この建築用板は、コア層１が発泡性樹脂をバインダ
とし、軽量骨材４を含むものとなっており、スキン層２
が樹脂をバインダとして補強繊維３を含むものとなって
いる。4 is a lightweight aggregate, 5 is a foamed hardened resin (organic foam), and in this construction board, the core layer 1 uses foamed resin as a binder and contains the lightweight aggregate 4, and the skin layer 2
contains reinforcing fibers 3 using resin as a binder.
まず、スキン層用組成物として、バインダ用の樹脂、フ
ライアッシュ、ガラス繊維等の補強繊維を混合する。フ
ライアッシュおよび補強繊維は必ずしも必要とさｎるも
のではなく、また、フライアッシュ、補強繊維以外の材
料を使用する場合もある。樹脂としては、発泡性樹脂に
限られるものではなく、コア層に使用する樹脂と種類が
異なるものを使用する場合もある。First, a resin for a binder, fly ash, and reinforcing fibers such as glass fibers are mixed as a skin layer composition. Fly ash and reinforcing fibers are not necessarily required, and materials other than fly ash and reinforcing fibers may be used. The resin is not limited to foamable resins, and a resin different in type from the resin used for the core layer may be used.
このスキン用組成物を成型してボードをつくり、このボ
ードを型の底に敷く。つぎに、軽量骨材に発泡性樹脂を
前記のようにして付着保持させてつくったコア層用組成
物をボードの上に充填する。This skin composition is molded into a board, and this board is placed at the bottom of the mold. Next, the core layer composition prepared by adhering and holding the foamable resin to the lightweight aggregate as described above is filled onto the board.
コア層用組成物の上に、さらにボードを載せてふたをす
る。このあと、コア層の発泡性樹脂を発泡硬化させて、
全体を成型すれば、発泡性樹脂が持つ接着力により（発
泡性樹脂の自己接着性を利用することにより）、２枚の
ボード（スキン層）がコア層の上下面に接着された建築
用板が得られる。A board is further placed on top of the core layer composition and the lid is closed. After this, the foamable resin of the core layer is foamed and hardened,
Once the whole is molded, it becomes a construction board with two boards (skin layers) bonded to the top and bottom surfaces of the core layer using the adhesive strength of the foam resin (using the self-adhesive properties of the foam resin). is obtained.
つぎのような別法によりつくることもできる。It can also be made by another method as follows.
未硬化のスキン用組成物を型の下に敷いておき、その上
にコア層用組成物を入れ、さらにその上にスキン用組成
物を入れる。３層同時に成型すれば建築用板が得られる
。An uncured skin composition is placed under a mold, a core layer composition is placed on top of the mold, and a skin composition is placed on top of that. A building board can be obtained by molding three layers at the same time.
この発明にかかる建築用板の製法はこのように構成され
るものであって、発泡性樹脂を軽量骨材表面に付着保持
させておいて型に充填するので、全体が均質な建築用板
を得ることができる。また、多量の建築用板をつくる場
合、個々の品質が安定する。The method for manufacturing a construction board according to the present invention is constructed as described above, and the foamable resin is adhered to the surface of lightweight aggregate and then filled into a mold, so that the construction board is homogeneous as a whole. Obtainable. Furthermore, when manufacturing boards for construction in large quantities, the quality of each individual board is stable.
第１図は３層構造の建築用板の構造説明図である。
４・・・軽量骨材 ５・・・発泡硬化樹脂代理人 弁理
士 松 本 武 彦FIG. 1 is a structural explanatory diagram of a three-layer construction board. 4... Lightweight aggregate 5... Foamed hardened resin agent Patent attorney Takehiko Matsumoto
Claims (4)
料を型に充填し、圧締しつつ発泡硬化させることによっ
て建築用板を得るにあたシ、発泡性樹脂を軽量骨材表面
に付着保持させておいて型に充填することを特徴とする
建築用板の製法。(1) A material containing lightweight aggregate is filled into a mold using foamable resin as a binder, and the foam is hardened while being compressed to obtain a construction board.The foamable resin is attached to the surface of the lightweight aggregate. A method for producing a construction board, which is characterized by holding the board and filling it into a mold.
も一方である特許請求の範囲第１項記載の建築用板の製
法。(2) The method for manufacturing a construction board according to claim 1, wherein the lightweight aggregate is at least one of expanded clay and expanded shale.
脂、塩化ビニル樹脂のそれぞれに発泡剤を加えたもの、
およびウレタン樹脂からなる群の中から選ばれた少なく
とも１種である特許請求の範囲第１項または第２項記載
の建築用板の製法。(3) The foamable resin is polyester resin, phenol resin, and vinyl chloride resin with a foaming agent added,
and urethane resin.
脂を付着保持させる特許請求の範囲第１項から第３項ま
でのいずれかに記載の建築用板の製法。(4) The method for manufacturing a construction board according to any one of claims 1 to 3, wherein the surface of the lightweight aggregate is moistened with water and the foamable resin is adhered and retained thereon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20280882A JPS5992965A (en) | 1982-11-17 | 1982-11-17 | Manufacture of construction board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20280882A JPS5992965A (en) | 1982-11-17 | 1982-11-17 | Manufacture of construction board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5992965A true JPS5992965A (en) | 1984-05-29 |
Family
ID=16463537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20280882A Pending JPS5992965A (en) | 1982-11-17 | 1982-11-17 | Manufacture of construction board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5992965A (en) |
-
1982
- 1982-11-17 JP JP20280882A patent/JPS5992965A/en active Pending
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