JPH09279758A - Composite building plate and its manufacture - Google Patents
Composite building plate and its manufactureInfo
- Publication number
- JPH09279758A JPH09279758A JP11539796A JP11539796A JPH09279758A JP H09279758 A JPH09279758 A JP H09279758A JP 11539796 A JP11539796 A JP 11539796A JP 11539796 A JP11539796 A JP 11539796A JP H09279758 A JPH09279758 A JP H09279758A
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- resin binder
- raw material
- fiber
- layer mat
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Panels For Use In Building Construction (AREA)
- Laminated Bodies (AREA)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
- Producing Shaped Articles From Materials (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は例えば天井板、内壁
板、下地板等に用いられる複合建築板およびその製造方
法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite building board used as, for example, a ceiling board, an inner wall board, a base board, and the like, and a manufacturing method thereof.
【０００２】[0002]
【発明の背景】従来、この種の建築板としては木質繊維
で補強したセメント板が提供されている。該セメント板
は木質繊維を混合したセメントを型板上に散布してマッ
トとし、該マットを圧締養生硬化することによって製造
されるが、セメントが略完全に硬化するまでに長時間を
要し、そのために木質繊維補強セメント板の製造時間は
最短でも１７〜２４時間が必要であり、その上製造中に
破損等による製品の歩留り低下と言う問題もある。BACKGROUND OF THE INVENTION Conventionally, cement boards reinforced with wood fibers have been provided as building boards of this type. The cement board is manufactured by sprinkling cement mixed with wood fibers on a template to form a mat, and curing the mat by pressure curing and curing. However, it takes a long time for the cement to harden almost completely. Therefore, the manufacturing time of the wood fiber reinforced cement board is required to be 17 to 24 hours at the minimum, and there is also a problem that the yield of the product is reduced due to breakage during manufacturing.
【０００３】[0003]
【従来の技術】最近硬化材料としてセメントに比して短
時間で硬化する硬化性合成樹脂を使用した建築板が使用
されている。例えば特開平５−１７８６５１号では鉱物
質繊維、無機粉末体、および粉末合成樹脂バインダーの
混合物Ａを散布して下層マットをフォーミングし、該下
層マット上に鉱物質繊維、無機発泡体、および粉末合成
樹脂バインダーの混合物Ｂを散布して中層マットをフォ
ーミングし、更に該中層マット上に混合物Ａを散布して
上層マットをフォーミングし、加熱状態で圧締して一体
化する無機建築板の製造方法が提供されている。2. Description of the Related Art Recently, a building board using a hardenable synthetic resin which hardens in a short time as compared with cement as a hardening material has been used. For example, in Japanese Unexamined Patent Publication (Kokai) No. 5-178651, a mixture A of a mineral fiber, an inorganic powder, and a powder synthetic resin binder is sprinkled to form a lower mat, and the mineral fiber, the inorganic foam, and the powder synthesized on the lower mat. A method for producing an inorganic building board in which a mixture B of a resin binder is sprinkled to form an intermediate layer mat, a mixture A is further spread on the intermediate layer mat to form an upper layer mat, and the upper layer mat is pressed and integrated in a heated state. It is provided.
【０００４】[0004]
【発明が解決しようとする課題】上記無機建築板では合
成樹脂バインダーとして粉末状のものを使用しているの
で、該合成樹脂バインダーが鉱物質繊維や無機粉末体あ
るいは無機発泡体と均一に混合しにくゝ、また混合して
も合成樹脂バインダーの分離が生じ易い。更に上下層マ
ットとして鉱物質繊維や無機粉末体を使用しているので
硬脆性があり、機械的強度が低いので大きな外力が及ぼ
される内壁板や下地板には適用出来ないと言う問題点が
あった。In the above inorganic building board, since a powdery material is used as the synthetic resin binder, the synthetic resin binder is uniformly mixed with the mineral fiber, the inorganic powdered material or the inorganic foamed material. Even if mixed or mixed, the synthetic resin binder easily separates. Furthermore, since mineral fibers and inorganic powders are used as the upper and lower layer mats, they are hard and brittle, and their mechanical strength is low, so there is a problem that they cannot be applied to inner wall plates and base plates to which a large external force is exerted. It was
【０００５】[0005]
【課題を解決するための手段】本発明は上記従来の課題
を解決するための手段として、木質繊維を液状合成樹脂
バインダーによって結着した表裏層と、無機原料と補強
繊維との混合物を液状合成樹脂バインダーによって結着
した芯層とからなる複合建築板を提供するものであり、
更に木質繊維を９２〜８５重量％、液状合成樹脂バイン
ダーを８〜１５重量％含む混合物を型板上に散布して表
層マットをフォーミングし、該表層マット上に無機原料
１８〜４５重量％、補強繊維４５〜７２重量％、液状合
成樹脂バインダーを８〜１５重量％含む混合物を型板上
に散布して芯層マットをフォーミングし、更に該芯層マ
ット上に木質繊維と液状合成樹脂バインダーの混合物を
散布して裏層マットをフォーミングし、加熱圧締して各
層の液状合成樹脂バインダーを硬化せしめる該複合建築
板の製造方法をを提供するものである。Means for Solving the Problems As a means for solving the above-mentioned conventional problems, the present invention provides a liquid synthesis of a front and back layer in which wood fibers are bound by a liquid synthetic resin binder, and a mixture of an inorganic raw material and reinforcing fibers. To provide a composite building board comprising a core layer bound by a resin binder,
Further, a mixture containing 92 to 85% by weight of wood fibers and 8 to 15% by weight of a liquid synthetic resin binder is sprayed on a template to form a surface mat, and the surface mat is reinforced with inorganic material of 18 to 45% by weight. A mixture containing 45 to 72% by weight of fibers and 8 to 15% by weight of a liquid synthetic resin binder is sprayed on a template to form a core layer mat, and further, a mixture of wood fibers and a liquid synthetic resin binder is formed on the core layer mat. The present invention provides a method for producing a composite building board in which the back-layer mat is formed by spraying and is heated and pressed to cure the liquid synthetic resin binder in each layer.
【０００６】[0006]
〔木質繊維〕本発明において使用される木質繊維とは、
木材をディスクリファイナ等の解繊機によって解繊する
ことによって製造され、通常木材は解繊に先立ってある
いは解繊中に蒸気膨潤処理が施され、また解繊は通常粗
砕である一次解繊と精砕である二次解繊の二段階で行な
われる。具体的には一次解繊においては例えば木材チッ
プを飽和蒸気圧７〜９ kgf／cm2 の雰囲気中で加熱しな
がらディスクリファイナで高圧解繊し、二次解繊におい
ては更にディスクリファイナによって精砕する。解繊後
は得られた木質繊維を例えばフラッシュドライヤーのよ
うな乾燥機によって乾燥する。このようにして得られた
木質繊維は通常標準篩目開き１．００ミリの通過量が９
０〜９８％である。[Wood fiber] The wood fiber used in the present invention,
It is produced by defibrating wood with a defibrating machine such as a disc refiner.Normally, wood is steam-swelled before or during defibration, and defibration is usually coarse crushing. And the secondary defibration, which is refinement. Specifically, in the primary defibration, for example, wood chips are subjected to high pressure defibration with a disc refiner while being heated in an atmosphere with a saturated vapor pressure of 7 to 9 kgf / cm 2 , and in the secondary defibration, they are further defibrated with a disc refiner. Refine. After the defibration, the obtained wood fiber is dried by a dryer such as a flash dryer. The wood fiber thus obtained generally has a standard sieve opening of 1.00 mm and a passing amount of 9
0 to 98%.
【０００７】〔液状合成樹脂バインダー〕本発明におい
て用いられる液状合成樹脂バインダーとしては、主とし
て液状熱硬化性合成樹脂バインダーがあり、該液状熱硬
化性合成樹脂バインダーとしては、例えばウレタン樹
脂、メラミン樹脂、熱硬化型アクリル樹脂、尿素樹脂、
フェノール樹脂、エポキシ樹脂、熱硬化型ポリエステル
等の硬化性合成樹脂、あるいはウレタン樹脂プレポリマ
ー、エポキシ樹脂プレポリマー、メラミン樹脂プレポリ
マー、尿素樹脂プレポリマー、フェノール樹脂プレポリ
マー、ジアリルフタレートプレポリマー、アクリルオリ
ゴマー、多価イソシアナート、ジアリルフタレートモノ
マー等のプレポリマー、オリゴマー、モノマー等の熱硬
化性合成樹脂の水溶液、メタノール、エタノール、プロ
パノール、ｎ−ブタノール等のアルコール溶液、酢酸エ
チル、酢酸ｎ−ブチル、トルエン、キシレン、メチルエ
チルケトン、メチルイソブチルケトン等の有機溶剤溶
液、あるいは該熱硬化性合成樹脂を水に分散させたサス
ペンジョンまたはエマルジョンがある。[Liquid Synthetic Resin Binder] The liquid synthetic resin binder used in the present invention mainly includes a liquid thermosetting synthetic resin binder. Examples of the liquid thermosetting synthetic resin binder include urethane resin, melamine resin, Thermosetting acrylic resin, urea resin,
Curable synthetic resin such as phenol resin, epoxy resin, thermosetting polyester, or urethane resin prepolymer, epoxy resin prepolymer, melamine resin prepolymer, urea resin prepolymer, phenol resin prepolymer, diallyl phthalate prepolymer, acrylic oligomer , Polyvalent isocyanate, diallyl phthalate prepolymer such as monomer, oligomer, aqueous solution of thermosetting synthetic resin such as monomer, alcohol solution such as methanol, ethanol, propanol, n-butanol, ethyl acetate, n-butyl acetate, toluene , An organic solvent solution of xylene, methyl ethyl ketone, methyl isobutyl ketone, or the like, or a suspension or emulsion in which the thermosetting synthetic resin is dispersed in water.
【０００８】〔無機原料〕本発明で用いられる無機原料
として望ましいものは多孔性無機軽量体である。該多孔
性無機軽量体としては例えばシラスバルーン、パーライ
ト、ＡＬＣ粉砕物、石炭灰、汚泥焼却残渣、珪藻土、濾
過助剤焼却残渣等があり、このような無機軽量体を芯層
原料として使用すると強度を低下させずに軽量な複合建
築板が得られる。このうちＡＬＣ粉砕物、石炭灰、汚泥
焼却残渣、濾過助剤として使用された後のパーライトま
たは珪藻土の焼却残渣の使用は、産業廃棄物の有効利用
につながり望ましいものである。上記多孔性無機軽量体
の他、本発明では例えば炭酸カルシウム、炭酸マグネシ
ウム、シリカ粉、珪石粉、膨張頁岩、膨張粘土等の無機
原料も使用することが出来る。また無機原料の一部とし
て活性炭、ゼオライト等の多孔質吸着性材料を配合すれ
ば調湿脱臭機能を有する建築板が得られる。[Inorganic Raw Material] A desirable inorganic raw material used in the present invention is a porous inorganic lightweight body. Examples of the porous inorganic lightweight material include shirasu balloon, perlite, ALC pulverized material, coal ash, sludge incineration residue, diatomaceous earth, filter aid incineration residue, and the like. A lightweight composite building board can be obtained without deteriorating. Of these, use of ALC pulverized product, coal ash, sludge incineration residue, and incineration residue of perlite or diatomaceous earth after being used as a filter aid is desirable because it leads to effective utilization of industrial waste. In addition to the above porous inorganic lightweight body, inorganic raw materials such as calcium carbonate, magnesium carbonate, silica powder, silica stone powder, expanded shale and expanded clay can also be used in the present invention. If a porous adsorptive material such as activated carbon or zeolite is mixed as a part of the inorganic raw material, a building board having a humidity control and deodorizing function can be obtained.
【０００９】〔補強繊維〕本発明に用いる補強繊維と
は、例えばポリエステル繊維、ポリエチレン繊維、ポリ
プロピレン繊維、ポリアミド繊維、アクリル繊維、ウレ
タン繊維、ポリ塩化ビニル繊維、ポリ塩化ビニリデン繊
維、アセテート繊維、パルプ、木綿、羊毛、ヤシ繊維等
の合成繊維または天然繊維であり、カーペット、不織
布、フェルト、繊維編織物、紙等の廃材を破砕解繊した
再生繊維等の有機繊維、ガラス繊維、岩綿、セラミック
繊維、カーボン繊維等の無機繊維等がある。[Reinforcing fiber] Examples of the reinforcing fiber used in the present invention include polyester fiber, polyethylene fiber, polypropylene fiber, polyamide fiber, acrylic fiber, urethane fiber, polyvinyl chloride fiber, polyvinylidene chloride fiber, acetate fiber, pulp, Synthetic or natural fiber such as cotton, wool, palm fiber, etc., organic fiber such as carpet, non-woven fabric, felt, fiber knitted fabric, recycled fiber obtained by crushing and disintegrating waste materials such as paper, glass fiber, rock wool, ceramic fiber , And inorganic fibers such as carbon fibers.
【００１０】〔表裏層の原料調製〕本発明において表裏
層の原料は、上記木質繊維と上記液状合成樹脂バインダ
ーとの混合物である。該液状合成樹脂バインダーは一次
解繊時、あるいは一次解繊後乾燥工程までの間、あるい
は乾燥工程後に木質繊維に添加される。本発明に使用す
る合成樹脂バインダーは液状であるから、木質繊維と均
一に混合することが出来、かつ混合した後も分離も起こ
さない。該液状合成樹脂バインダーの添加量は通常上記
混合物中に該液状合成樹脂バインダーの樹脂分として８
〜１５重量％含まれるように設定する。該液状合成樹脂
バインダーの樹脂分が８重量％に満たない場合には、木
質繊維を充分結着することが出来なくなり、表裏層の形
成が困難で強度不足の原因となり、該液状合成樹脂バイ
ンダーの樹脂分が１５重量％を越えると強度は飽和し、
後記する半乾式法によって表裏層マットをフォーミング
する場合に原料混合物内に結着が生じ散布作業性が損な
われ、またコスト高を招くことになる。[Preparation of Raw Material for Front and Back Layer] In the present invention, the raw material for the front and back layer is a mixture of the wood fiber and the liquid synthetic resin binder. The liquid synthetic resin binder is added to the wood fiber during the primary defibration, or after the primary defibration until the drying step, or after the drying step. Since the synthetic resin binder used in the present invention is in a liquid state, it can be uniformly mixed with the wood fibers and does not separate even after mixing. The amount of the liquid synthetic resin binder added is usually 8 as the resin component of the liquid synthetic resin binder in the mixture.
It is set so as to contain ˜15 wt%. When the resin content of the liquid synthetic resin binder is less than 8% by weight, it becomes impossible to sufficiently bind the wood fibers, which makes it difficult to form the front and back layers and causes insufficient strength. When the resin content exceeds 15% by weight, the strength is saturated,
When the front and back layer mats are formed by the semi-dry method, which will be described later, binding occurs in the raw material mixture, the spraying workability is impaired, and the cost is increased.
【００１１】〔芯層の原料調製〕本発明において芯層の
原料は、上記無機原料、上記補強繊維、および上記液状
合成樹脂バインダーとの混合物である。該原料混合物中
には該補強繊維４５〜７２重量％、該液状合成樹脂バイ
ンダーが樹脂分として８〜１５重量％になるように添加
混合され、更に該無機原料が通常１８〜４５重量％添加
される。本発明に使用する合成樹脂バインダーは液状で
あるから、無機原料および補強繊維と均一に混合するこ
とが出来、かつ混合した後も分離も起こさず、該無機原
料と該補強繊維との混合物を充分に結着することが出来
る。該補強繊維が該原料混合物中に４５重量％未満で含
まれる場合には充分な補強効果が得られず、一方７２重
量％を越えると芯層構造が粗になってやはり製品の強度
低下の原因となる。該液状合成樹脂バインダーの樹脂分
が８重量％に満たない場合には製品の強度が低下し、ま
た１５重量％を越えると強度は飽和し、後記する半乾式
法によって芯層マットをフォーミングする場合に原料混
合物内に結着が生じ散布作業性が損なわれ、またコスト
高を招くことになる。更に芯層中有機質即ち有機補強繊
維と液状合成樹脂バインダーとの和と、無機質即ち無機
原料と無機補強繊維との和との比率、有機質／無機質は
０．５〜１．５の範囲とすることが望ましい。該比率が
０．５未満の場合には製品の嵩比重が大きくなり比強度
が低下し、また１．５を越えると防火上問題となる。上
記製品の嵩比重と防火性とを考慮すれば、好ましい無機
原料の添加量は１８〜４５重量％になる。[Preparation of Raw Material for Core Layer] In the present invention, the raw material for the core layer is a mixture of the inorganic raw material, the reinforcing fiber, and the liquid synthetic resin binder. In the raw material mixture, 45 to 72% by weight of the reinforcing fiber and the liquid synthetic resin binder are added and mixed so that the resin content is 8 to 15% by weight, and the inorganic raw material is usually added in an amount of 18 to 45% by weight. It Since the synthetic resin binder used in the present invention is in a liquid state, it can be uniformly mixed with the inorganic raw material and the reinforcing fiber, and separation does not occur even after mixing, and the mixture of the inorganic raw material and the reinforcing fiber is sufficiently mixed. Can be attached to. When the reinforcing fiber is contained in the raw material mixture in an amount of less than 45% by weight, a sufficient reinforcing effect cannot be obtained, while when it exceeds 72% by weight, the core layer structure becomes coarse and the strength of the product is deteriorated. Becomes When the resin content of the liquid synthetic resin binder is less than 8% by weight, the strength of the product is lowered, and when it exceeds 15% by weight, the strength is saturated, and when the core layer mat is formed by the semi-dry method described below. Moreover, binding occurs in the raw material mixture, impairing the spraying workability, and increasing the cost. Furthermore, the ratio of the sum of the organic substance, that is, the organic reinforcing fiber and the liquid synthetic resin binder in the core layer, and the inorganic substance, that is, the sum of the inorganic raw material and the inorganic reinforcing fiber, the organic substance / inorganic substance is in the range of 0.5 to 1.5. Is desirable. If the ratio is less than 0.5, the bulk specific gravity of the product will be large and the specific strength will decrease, and if it exceeds 1.5, there will be a problem in fire prevention. Considering the bulk specific gravity and fire resistance of the product, the preferable amount of the inorganic raw material added is 18 to 45% by weight.
【００１２】〔その他の添加剤〕上記表裏層および芯層
の原料には更にシリコン系、ワックス系、パラフィン系
等の防水剤や水酸化アルミニウム、酸化モリブデン、ト
リクレジルホスフェイト等の難燃剤等を添加してもよ
い。[Other Additives] As raw materials for the front and back layers and the core layer, silicone-based, wax-based, paraffin-based waterproofing agents, aluminum hydroxide, molybdenum oxide, flame retardants such as tricresyl phosphate, etc. May be added.
【００１３】〔複合建築板の製造〕本発明の複合建築板
の製造には通常型板上に上記表裏層原料を散布して表層
マットをフォーミングし、該表層マット上に上記芯層原
料を散布して芯層マットをフォーミングし、更に該芯層
マット上に上記表裏層原料を散布して裏層マットをフォ
ーミングし、このようにして得られた三層マットを加熱
圧締する半乾式法が適用される。上記半乾式法にあって
は加熱圧締の前段で平板プレス機あるいはロールプレス
機によって予備プレスを行なうことが望ましい。加熱圧
締には通常下型と上型とからなるプレス機が使用され、
製造される複合建築板の厚みを調節するために通常は該
下型と上型との間にはディスタンスバーを介在せしめ
る。該加熱圧締においては通常初期面圧を約３０〜３５
kgf／cm2 の高圧に設定し、その後面圧を約１５〜２０
kgf／cm2 にステップダウンする。そしてプレス機の型
面温度は通常１６０〜１８０℃に設定され、圧締時間は
通常１０〜１５分に設定される。上記加熱圧締工程によ
って三層マットは一体化しかつ該三層マットに含まれて
いる液状合成樹脂バインダーは硬化して複合建築板とな
る。[Production of Composite Building Board] In order to produce the composite building board of the present invention, the above-mentioned front and back layer raw materials are usually sprayed on a template to form a surface mat, and the above core layer raw material is sprayed on the surface mat. Then, the core layer mat is formed, and the front and back layer raw materials are further sprinkled on the core layer mat to form the back layer mat, and the three-layer mat thus obtained is heated and pressed by a semi-dry method. Applied. In the semi-dry method, it is desirable to carry out preliminary pressing with a flat plate press or a roll press before the heat pressing. A press machine consisting of a lower mold and an upper mold is usually used for hot pressing.
In order to adjust the thickness of the composite building board to be manufactured, a distance bar is usually interposed between the lower mold and the upper mold. In the heating and pressing, the initial surface pressure is usually about 30 to 35.
Set a high pressure of kgf / cm 2 and then set the surface pressure to about 15 to 20.
Step down to kgf / cm 2 . The die surface temperature of the press is usually set to 160 to 180 ° C., and the clamping time is usually set to 10 to 15 minutes. By the heating and pressing step, the three-layer mat is integrated and the liquid synthetic resin binder contained in the three-layer mat is cured to form a composite building board.
【００１４】実施例１（三層マット製造装置） 図１に本発明に使用される三層マットの製造装置が示さ
れる。図において型板(1) は矢印方向に巡動するフォー
ミングベルト(2) 上に載置され、該フォーミングベルト
(2) 上には前段から表層フォーミングユニット(3) 、芯
層フォーミングユニット(4) 、裏層フォーミングユニッ
ト(5) が配置され、表裏層フォーミングユニット(3,5)
は分級式であって、原料投入口(6,7) を天板部に有する
フォーミングチャンバー(8,9) 内には、原料受けベルト
コンベア(10,11) 、原料押圧ロールコンベア(12,13) 、
散布ロール(14,15) 、原料受けベルトコンベア(10,11)
の背面ガイド板(16,17) および前面ガイド板(18,19) 、
散布ロール(14,15) を被覆するカバー(20,21) が配置さ
れており、芯層フォーミングユニット(4) は非分級式で
あって、原料投入口(22)を天板部に有するフォーミング
チャンバー(23)内には、原料受けベルトコンベア(24)、
原料押圧ロールコンベア(25)、一対の散布ピッカロール
(26,27) 、原料受けベルトコンベア(24)の背面ガイド板
(28)および前面ガイド板(29)、散布ピッカロール(26,2
7) を被覆するカバー(30)が配置されている。Example 1 (three-layer mat manufacturing apparatus) FIG. 1 shows a three-layer mat manufacturing apparatus used in the present invention. In the figure, the template (1) is placed on a forming belt (2) that circulates in the direction of the arrow,
(2) The front layer forming unit (3), the core layer forming unit (4), and the back layer forming unit (5) are arranged on the front side from above, and the front and back layer forming units (3, 5)
Is a classifying type, the raw material receiving belt conveyor (10, 11), the raw material pressing roll conveyor (12, 13) in the forming chamber (8, 9) having the raw material inlet (6, 7) in the top plate part. ),
Spreading rolls (14,15), raw material receiving belt conveyors (10,11)
Rear guide plates (16,17) and front guide plates (18,19),
Covers (20, 21) covering the spreading rolls (14, 15) are arranged, the core layer forming unit (4) is a non-classifying type, and the forming plate has the raw material inlet (22) in the top plate part. In the chamber (23), the raw material receiving belt conveyor (24),
Raw material pressing roll conveyor (25), a pair of spray picker rolls
(26,27), back guide plate of raw material receiving belt conveyor (24)
(28) and front guide plate (29), spray picker roll (26,2
A cover (30) covering the (7) is arranged.
【００１５】上記三層マットの製造装置においては、表
層フォーミングユニット(3) の原料投入口(6) から表層
原料を原料受けベルトコンベア(10)上に投入し、原料押
圧ロールコンベア(12)によって該原料受けベルトコンベ
ア(10)上の原料を押圧圧縮しつゝ散布ロール(14)上に落
下させ、該散布ロール(14)によって型板(1) 上に分級し
つゝ散布し、表面側は微細原料、内面側は粗原料からな
る表層マットＭ1 をフォーミングする。同様に芯層フォ
ーミングユニット(4) によって該表層マットＭ1 上に一
対の散布ピッカロール(26,27) によって分級することな
く芯層原料を散布して芯層マットＭ2 をフォーミング
し、更に裏層フォーミングユニット(5) によって該芯層
マットＭ2 上に表面側は微細原料、内面側は粗原料から
なる裏層マットＭ3 をフォーミングし、このようにして
製造された三層マットＭはロールプレス(31)あるいは平
板プレスによって予備プレスされた後加熱圧締され、図
２に示すような表裏層Ｂ1 ，Ｂ3 および芯層Ｂ2 からな
る複合建築板Ｂが製造される。In the above-mentioned three-layer mat production apparatus, the surface layer raw material is introduced into the raw material receiving belt conveyor (10) from the raw material forming port (6) of the surface layer forming unit (3), and the raw material pressing roll conveyor (12) is used. The raw material on the raw material receiving belt conveyor (10) is pressed and compressed, and then dropped onto a spraying roll (14), and the spraying roll (14) classifies it onto the template (1) and sprays it on the surface side. to forming a surface layer mat M 1 is composed of fine material, the inner surface is crude. Similarly, the core layer forming unit (4) sprays the core layer raw material on the surface layer mat M 1 without classification by the pair of spray picker rolls (26, 27) to form the core layer mat M 2 and further back layer. A backing layer mat M 3 made of a fine raw material on the surface side and a coarse raw material on the inner surface side is formed on the core layer mat M 2 by a forming unit (5), and the three-layer mat M thus produced is roll-pressed. (31) or heated clamped after being pre-pressed by a flat plate press, a composite building board B consisting of front and back layers B 1, B 3 and Shinso B 2 as shown in FIG. 2 is manufactured.
【００１６】実施例２（複合建築板の製造） 表１に示す組成の原料混合物を使用して実施例１に示し
た三層マット製造装置によって三層マットＭをフォーミ
ングし、該三層マットＭを表１に示す条件で加熱圧締し
て本発明の複合建築板試料Ｎo.１〜Ｎo.７および比較試
料Ｎo.１〜Ｎo.３を製造した。Example 2 (Production of composite building board) Using the raw material mixture having the composition shown in Table 1, the three-layer mat M was formed by the apparatus for producing a three-layer mat shown in Example 1, and the three-layer mat M was formed. Were heated and pressed under the conditions shown in Table 1 to manufacture composite building board samples No. 1 to No. 7 and comparative samples No. 1 to No. 3 of the present invention.
【００１７】該試料Ｎo.１〜Ｎo.７および比較試料Ｎo.
１〜Ｎo.３を所定寸法に切断して試験片を作成し、該試
験片の物性を測定した結果を表２に示す。The samples No. 1 to No. 7 and the comparative sample No.
Table 2 shows the results of measuring the physical properties of the test pieces by cutting 1 to No. 3 into predetermined dimensions to prepare test pieces.
【００１８】[0018]
【表１】 [Table 1]
【００１９】[0019]
【表２】 [Table 2]
【００２０】比較試料Ｎo.１は液状合成樹脂バインダー
の添加量が樹脂分として８重量％に満たない試料であ
り、製品強度の不足をきたし、比較試料Ｎo.２は多孔性
無機軽量体であるパーライトの添加量が４５重量％を越
えた試料であり、やはり製品強度の不足をきたす。また
表裏層に無機繊維であるガラス繊維を用いた比較試料Ｎ
o.３では表裏層が硬脆性を有し割れが発生する。Comparative sample No. 1 is a sample in which the amount of the liquid synthetic resin binder added is less than 8% by weight as a resin component, resulting in insufficient product strength, and comparative sample No. 2 is a porous inorganic lightweight body. This is a sample in which the amount of pearlite added exceeds 45% by weight, which also causes a lack of product strength. Also, a comparative sample N using glass fibers which are inorganic fibers in the front and back layers
In o.3, the front and back layers are hard and brittle and cracks occur.
【００２１】[0021]
【発明の効果】本発明では表裏層および芯層を結着硬化
させるためにセメントよりも短時間で硬化する液状合成
樹脂バインダーを使用するから、複合建築板の製造工程
が大巾に短縮され、また該合成樹脂バインダーは液状で
あるから原料に均一に混合され、混合後も分離を起こさ
ないので結着硬化効率がよく、製品の強度が大巾に向上
する。更に表裏層には木質繊維を使用するから、硬脆性
のない大きな強度の表裏面を有する製品が得られる。According to the present invention, since a liquid synthetic resin binder which is hardened in a shorter time than cement is used for binding and hardening the front and back layers and the core layer, the manufacturing process of the composite building board is greatly shortened, Further, since the synthetic resin binder is in a liquid state, it is uniformly mixed with the raw materials and does not separate even after mixing, so that the binding and curing efficiency is good and the strength of the product is greatly improved. Furthermore, since wood fibers are used for the front and back layers, a product having a large strength front and back surface without hard brittleness can be obtained.
【図１】三層マット製造装置の説明図FIG. 1 is an explanatory diagram of a three-layer mat manufacturing apparatus.
【図２】複合建築板の部分断面図[Figure 2] Partial cross-sectional view of a composite building board
Ｂ 複合建築板 Ｂ1,Ｂ3 表裏層 Ｂ2 芯層 Ｍ 三層マット Ｍ1,Ｍ3 表裏層マット Ｍ2 芯層マット 1 型板 2 フォーミングベルト 3 表層フォーミングユニット 4 芯層フォーミングユニット 5 裏層フォーミングユニットB Composite building board B 1, B 3 Front and back layers B 2 Core layer M Three-layer mat M 1, M 3 Front and back layer mat M 2 Core layer mat 1 Template 2 Forming belt 3 Front layer forming unit 4 Core layer forming unit 5 Back layer Forming unit
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０４Ｂ 38/08 Ｃ０４Ｂ 38/08 Ａ // Ｃ０４Ｂ 26/12 Ｃ０４Ｂ 26/12 (Ｃ０４Ｂ 26/12 14:16 14:18 18:16 18:10） ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical display area C04B 38/08 C04B 38/08 A // C04B 26/12 C04B 26/12 (C04B 26/12 14 : 16 14:18 18:16 18:10)
Claims (4)
て結着した表裏層と、無機原料と補強繊維との混合物を
液状合成樹脂バインダーによって結着した芯層とからな
ることを特徴とする複合建築板1. A composite building board comprising front and back layers in which wood fibers are bound by a liquid synthetic resin binder, and a core layer in which a mixture of an inorganic raw material and reinforcing fibers is bound by a liquid synthetic resin binder.
項１に記載の複合建築板2. The composite building board according to claim 1, wherein the inorganic raw material is a porous inorganic lightweight body.
ーライト、ＡＬＣ粉砕物、石炭灰、汚泥焼却残渣、珪藻
土および濾過助剤焼却残渣からなるグループから選ばれ
た一種または二種以上の混合物である請求項２に記載の
複合建築板3. The porous inorganic lightweight material is one or a mixture of two or more kinds selected from the group consisting of shirasu balloon, perlite, crushed ALC, coal ash, sludge incineration residue, diatomaceous earth and filter aid incineration residue. The composite building board according to claim 2.
脂バインダーを８〜１５重量％含む混合物を型板上に散
布して表層マットをフォーミングし、該表層マット上に
無機原料１８〜４５重量％、補強繊維４５〜７２重量
％、液状合成樹脂バインダーを８〜１５重量％含む混合
物を型板上に散布して芯層マットをフォーミングし、更
に該芯層マット上に木質繊維と液状合成樹脂バインダー
の混合物を散布して裏層マットをフォーミングし、加熱
圧締して各層の液状合成樹脂バインダーを硬化せしめる
ことを特徴とする複合建築板の製造方法4. A surface layer mat is formed by spraying a mixture containing 92 to 85% by weight of wood fibers and 8 to 15% by weight of a liquid synthetic resin binder on a template to form an inorganic raw material 18 to 45 on the surface layer mat. Wt%, reinforcing fibers 45 to 72% by weight, and liquid synthetic resin binder 8 to 15% by weight on the template to form a core layer mat, and further to form a wood fiber and the liquid composition on the core layer mat. A method for producing a composite building board, which comprises spraying a mixture of resin binders to form a back layer mat, and heating and pressing to harden the liquid synthetic resin binder in each layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11539796A JPH09279758A (en) | 1996-04-12 | 1996-04-12 | Composite building plate and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11539796A JPH09279758A (en) | 1996-04-12 | 1996-04-12 | Composite building plate and its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09279758A true JPH09279758A (en) | 1997-10-28 |
Family
ID=14661559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11539796A Pending JPH09279758A (en) | 1996-04-12 | 1996-04-12 | Composite building plate and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09279758A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003090563A (en) * | 2001-09-19 | 2003-03-28 | Chiyonobu Eguchi | Humidity control panel and means therefor |
| CN102275204A (en) * | 2011-08-25 | 2011-12-14 | 程治国 | Stone-wood plate and manufacturing process thereof |
| KR20190025137A (en) * | 2017-08-30 | 2019-03-11 | 주식회사 하우이씨엠 | Base panel for construction having excellent non-inflammability and light weight property |
| WO2020198809A1 (en) * | 2019-04-03 | 2020-10-08 | Newsouth Innovations Pty Limited | Composite products and the manufacture thereof |
-
1996
- 1996-04-12 JP JP11539796A patent/JPH09279758A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003090563A (en) * | 2001-09-19 | 2003-03-28 | Chiyonobu Eguchi | Humidity control panel and means therefor |
| CN102275204A (en) * | 2011-08-25 | 2011-12-14 | 程治国 | Stone-wood plate and manufacturing process thereof |
| KR20190025137A (en) * | 2017-08-30 | 2019-03-11 | 주식회사 하우이씨엠 | Base panel for construction having excellent non-inflammability and light weight property |
| WO2020198809A1 (en) * | 2019-04-03 | 2020-10-08 | Newsouth Innovations Pty Limited | Composite products and the manufacture thereof |
| AU2020251051B2 (en) * | 2019-04-03 | 2022-10-20 | Newsouth Innovations Pty Limited | Composite products and the manufacture thereof |
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