JPS61233039A - Reinforced acrylic resin plate and production thereof - Google Patents
Reinforced acrylic resin plate and production thereofInfo
- Publication number
- JPS61233039A JPS61233039A JP7402885A JP7402885A JPS61233039A JP S61233039 A JPS61233039 A JP S61233039A JP 7402885 A JP7402885 A JP 7402885A JP 7402885 A JP7402885 A JP 7402885A JP S61233039 A JPS61233039 A JP S61233039A
- Authority
- JP
- Japan
- Prior art keywords
- acrylic resin
- syrup
- mold
- glass fiber
- cloth
- 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
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、例えば銀行のキャッシャー・ゼードや各種防
護板等、強度を要するプラスチックス部材として用いら
れるアクリル樹脂強化板ならびにその製造方法に関する
。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an acrylic resin reinforced plate used as a plastic member requiring strength, such as bank cashiers and various protective plates, and a method for manufacturing the same.
従来の技術
アクリル樹脂は、透光性、着色性が良く、耐候性にすぐ
れ、軽くて強靭で加工が自由である等、種々の好ましい
性質を有しているので各種の用途に用いらｎるが、さら
に強度、特に衝撃強度を必要とする用途のため、アクリ
ル樹脂中にガラス繊維を封入したアクリル樹脂強化板が
開発さｎている。このような従来のガラス繊維強化アク
リル樹脂板は、鋳込み法又は押出し法等により製造され
た複数板のアクリル樹脂板の間に尋剤を介してガラス繊
維布を挾み込み積層し、熱圧着して成形したサンドウィ
ッチ方式のものか、細片、フレーク状のガラス繊維をア
クリル樹脂シラツプ中に混合分散せしめて成形した分散
方式のものである。Conventional technology Acrylic resin has various desirable properties such as good transparency, good colorability, excellent weather resistance, light weight, toughness, and freedom of processing, so it is used for various purposes. However, for applications that require further strength, particularly impact strength, acrylic resin reinforced plates in which glass fibers are encapsulated in acrylic resin have been developed. Such conventional glass fiber-reinforced acrylic resin plates are made by sandwiching glass fiber cloth between multiple acrylic resin plates manufactured by casting or extrusion, using a thickening agent, and then forming them by heat-pressing them. Either a sandwich method is used, or a dispersion method is created by mixing and dispersing glass fibers in the form of acrylic resin into an acrylic resin syrup.
また、上記アクリル樹脂強化板のほかに、ポリカーゼネ
ート板も同様な用途の強度を要するプラスチックス部材
として用いらｎている。In addition to the above-mentioned acrylic resin reinforced plates, polycarbonate plates are also used as plastic members that require strength for similar purposes.
発明が解決しようとする問題点
上述のようなサンドウィッチ方式で製造さｆｌ−たガラ
ス繊維強化アクリル樹脂板は、アクリル樹脂板とガラス
繊維布が積層されたものであるため、使用時折曲げ、衝
撃等の荷重が掛かった場合に積層境界面がら剥離を生ず
ることが多く、信頼性を要する部材に用い得ない欠点が
ある。また、分散方式によるものは、ガラス繊維による
強化効果が充分でなく、必要とする強度が得らｎない。Problems to be Solved by the Invention The glass fiber-reinforced acrylic resin board produced by the above-mentioned sandwich method is made by laminating an acrylic resin board and a glass fiber cloth, so it is susceptible to bending, impact, etc. during use. This has the disadvantage that it often peels off from the laminated interface when a load is applied to it, making it unsuitable for use in parts that require reliability. Furthermore, in the dispersion method, the reinforcing effect of the glass fibers is insufficient, and the required strength cannot be obtained.
本発明は、上記のような従来のガラス繊維強ｆヒアクリ
ル樹脂板の問題点に鑑み、荷重により剥離等の欠陥を生
ずることがなく強度のすぐｎたアクリル樹脂強ｆヒ板な
らびにその製造方法を提供することを目的とする。In view of the above-mentioned problems with conventional glass fiber reinforced acrylic resin boards, the present invention provides a strong acrylic resin board that does not cause defects such as peeling under load and has excellent strength, and a method for manufacturing the same. The purpose is to provide.
問題点を解決するための手段
本発明のアクリル樹脂強化板は、アクリル樹脂中に布状
ガラス繊維が封入さｎており、アクリル樹脂が該ガラス
繊維内に含浸されていることを特徴とするものである。Means for Solving the Problems The acrylic resin reinforced board of the present invention is characterized in that cloth-like glass fibers are encapsulated in the acrylic resin, and the acrylic resin is impregnated within the glass fibers. It is.
ｔた、本発明のアクリル樹脂強化板の製造方法は、強化
ガラス板で形成さｔ′した型内にメタクリル酸メチルエ
ステルに重合促進剤を添加したシラツプを所要量装入し
、該シラツプ上にガラス繊Ｈｚりなろ布を敷き、その上
にさらに前記シラツプを所要量装入し、上記１穆を所要
回数くり返した後的記型に圧力を掛けて挟圧成形するも
のである。In addition, in the method for producing an acrylic resin reinforced plate of the present invention, a required amount of syrup made of methacrylic acid methyl ester with a polymerization accelerator added is charged into a mold made of a reinforced glass plate, and the syrup is poured onto the syrup. A glass fiber Hz liner filter cloth is spread, a required amount of the syrup is further charged thereon, and the above step 1 is repeated the required number of times, followed by pressure molding by applying pressure to the mold.
前記ガラス繊維エリなる布は、型に装入して前に装入さ
れたシラツプ上に敷くのに先立ち、真空タンク内でシラ
ツプを含浸させる予備処理を施しておく。The glass fiber cloth is pretreated in a vacuum tank to impregnate it with syrup before being placed in the mold and over the previously charged syrup.
作用
上記のように構成さｎた本発明のアクリル樹脂強化板は
、封入さｆｌ７（布状ガラス繊維内にアクリル樹脂が含
浸さｎ１アクリル樹脂とガラス繊維とが完全に一体化し
ているので、従来のサンドウィッチ方式によるもののよ
うに折曲げ、衝撃荷重等グ
により剥離するようなことがなく、荷酷な使用に耐えて
充分な強度を発揮する。Function: The acrylic resin reinforced plate of the present invention constructed as described above has an encapsulated fl7 (acrylic resin is impregnated into cloth-like glass fibers). It does not peel off due to bending, impact loads, etc., unlike those made using the sandwich method, and exhibits sufficient strength to withstand heavy use.
また、本発明のアクリル樹脂強化板の製造方法によれば
、上記のように布状ガラス繊維にアクリル樹脂が含浸し
て一体化した本発明のアクリル樹脂強化板を容易に成形
することができる。Further, according to the method for manufacturing an acrylic resin reinforced board of the present invention, it is possible to easily mold the acrylic resin reinforced board of the present invention in which cloth-like glass fibers are impregnated with an acrylic resin and integrated as described above.
実施例
以下、本発明方法により本発明のアクリル樹脂強化板を
製造した実施例について説明する。EXAMPLES Hereinafter, examples in which an acrylic resin reinforced board of the present invention was manufactured by the method of the present invention will be described.
本発明方法においては、アクリル樹脂の原料モノＦＪ・
−としてメタクリル酸メチルエステルを用いる。このモ
ノマーは、下記の工うな構造式をもつ無色透明、芳香性
の液体である。In the method of the present invention, acrylic resin raw material mono FJ
methacrylic acid methyl ester is used as -. This monomer is a colorless, transparent, aromatic liquid with the structural formula shown below.
とのモノマーに重合促進剤として適量の過酸化ベンゾイ
ル又は、アゾピスイソブチロニ）−、！Ｊルを添加して
予備重合したシーラップとして使用する。A suitable amount of benzoyl peroxide or azopisisobutyroni) as a polymerization accelerator to the monomer with -,! It is used as a prepolymerized sea wrap with the addition of J.
ガラス繊維は布状に織成した縦横強度１５４階／−のも
のを用い、予備処理として真空タンク内において肋記シ
ラツゾを含浸させる予備処理を行っておく。The glass fibers are woven in the form of a cloth and have a longitudinal and transverse strength of 154 stories/-, and are pre-treated in a vacuum tank to be impregnated with Shirasuzo.
このように準備したシラツプと布状ガラス繊維とを強化
ガラス板で形成した型内に装入し、圧縮注型法によりア
クリル樹脂強化板の成形を行う。The thus prepared syrup and cloth-like glass fibers are placed in a mold made of a reinforced glass plate, and an acrylic resin reinforced plate is formed by compression casting.
この場合、本発明方法においては、先ず強化ガラス板で
形成された型内に所要量の前記シラツプを装入する。こ
のシラツプには、成形後の型離れを良くするため、予め
剥離剤を適量添加しておくのが好ましい。次いで、この
装入さｎたシラツプの上に前記の予備処理さｆ′した布
状ガラス繊維を敷く。In this case, in the method of the present invention, first the required amount of the syrup is charged into a mold made of a tempered glass plate. In order to improve release from the mold after molding, it is preferable to add an appropriate amount of a release agent to this syrup in advance. Next, the pretreated glass fiber cloth is laid on top of the charged syrup.
さらに、その上に再度シラツプを装入し、こｆＬ’ｉｉ
複数回くり返して型内の布状ガラス繊維を封入したシラ
ツプが所要の厚みになるようにする。封入される布状ガ
ラス繊維の枚数ならびに一回に装入されるシラツプの厚
みは、要求される製品アクリル樹脂強ｆヒ板の強度や厚
みに応じて適宜選択すればよい。本実施例において゛は
、布状ガラス繊維を７枚とし、製品厚み３ｍのものを製
造した。Furthermore, charge the syrup again on top of it, and
Repeat this several times until the syrup encapsulating the cloth-like glass fibers in the mold has the required thickness. The number of woven glass fibers to be encapsulated and the thickness of the syrup charged at one time may be appropriately selected depending on the required strength and thickness of the product acrylic resin reinforcement plate. In this example, seven sheets of glass fiber cloth were used to produce a product with a thickness of 3 m.
次いで、前記型にプレス等で上下から圧力を掛け、型内
の布状ガラス繊維全封入したシラツプを圧搾して成形す
る。この時の圧力は通常８０〜１ ｓ Ｏｋｐ／−とし
、概ね１１０〜１３０℃の温度に保持し、アクリル樹脂
の重合を促進させつつ圧搾成形を行うもので、アクリル
樹脂は約２〜３時間で硬化して板状体とガる。なお、こ
の圧搾成形の過程で型内から真空吸引を行い、樹脂材の
脱泡を行ってもよい。Next, pressure is applied to the mold from above and below using a press or the like, and the syrup completely encapsulating the cloth-like glass fibers in the mold is compressed and molded. The pressure at this time is usually 80 to 1 s Okp/-, the temperature is maintained at approximately 110 to 130°C, and compression molding is performed while promoting the polymerization of the acrylic resin. It hardens and forms a plate. Note that during this compression molding process, vacuum suction may be applied from inside the mold to defoam the resin material.
上記のようにして硬化した板状材は、所要に応じて熱処
理（焼鈍）ｔ−行い内部応力を除去して歪みを生じない
工うにし７た後、離型し、所要寸法に切断して本発明の
アクリル樹脂強化板が得らｎる。The plate material hardened as described above is subjected to heat treatment (annealing) as required to remove internal stress and create a shape that does not cause distortion7, then released from the mold and cut into required dimensions. An acrylic resin reinforced board of the present invention is obtained.
なお、上記切断に当っては、本発明のアクリル樹脂強ｆ
ヒ板は通常の工具では切断が困難であり、ダイヤモンド
工具等の特殊な工具を使用する必要がある。In addition, in the above-mentioned cutting, the acrylic resin strength f of the present invention was used.
It is difficult to cut the plate with normal tools, so it is necessary to use a special tool such as a diamond tool.
上記方法により製造さｆｉ７ｅ布状ガラス繊維を７枚封
入した３ｍ厚のアクリル樹脂強化板につき、Ｖノツチ付
アイゾツト衝撃強度の試験を行ったところ、４５〜６０
紛ｆ−〜夕の衝撃値を示し、丁ぐｎ＊衝撃強度金有する
ことが認めらｆした。これに対し、市販のポリカーゼネ
ート板について試験を行った結果は６〜５０ ｋｇｆ−
ｃｍ、乙−であり、ばらつきの多いものであった。また
、本発明のアクリル樹脂強化板は繰返し曲げ荷Ｍを与え
ても、ガラス繊維境界面から剥離を起すことがなかった
。A 3m thick acrylic resin reinforced board manufactured by the above method and filled with 7 sheets of FI7E cloth-like glass fiber was tested for Izot impact strength with a V-notch, and the results were 45 to 60.
It was found that the material had an impact value of 100% to 100%, and it was found that the material had an impact strength of 10%. On the other hand, the results of tests on commercially available polycarbonate plates were 6 to 50 kgf-
cm, B-, and there were many variations. Furthermore, even when the acrylic resin reinforced plate of the present invention was subjected to repeated bending loads M, it did not peel off from the glass fiber interface.
発明の効果
以上の説明から明らかなと卦り、本発明によるアクリル
樹脂強化板は強度にすぐｎている上、使用中の荷重によ
り剥離を起すようなことがなく、しかも従来のサンドウ
ィッチ方式のガラス繊維強化板の如く複雑な工程を要し
ないで容易に製造することができ、各種防護部材等の強
度と信頼性を要する用途に経済的に使用し得るものであ
る。Effects of the Invention It is clear from the above explanation that the acrylic resin reinforced plate according to the present invention not only has excellent strength, but also does not peel off due to load during use, and is superior to conventional sandwich glass. Unlike fiber-reinforced boards, it can be easily manufactured without requiring complicated processes, and can be economically used in applications that require strength and reliability, such as various protective members.
Claims (3)
り、アクリル樹脂が該ガラス繊維内に含浸されているこ
とを特徴とするアクリル樹脂強化板。(1) An acrylic resin reinforced board characterized in that cloth-like glass fibers are encapsulated in an acrylic resin, and the acrylic resin is impregnated into the glass fibers.
チルエステルに重合促進剤を添加したシラツプを所要量
装入し、該シラツプ上にガラス繊維よりなる布を敷き、
その上にさらに前記シラツプを所要量装入し、上記工程
を所要回数くり返した後前記型に圧力を掛けて挟圧成形
することを特徴とするアクリル樹脂強化板の製造方法。(2) A required amount of syrup made of methacrylic acid methyl ester with a polymerization accelerator added is charged into a mold made of a reinforced glass plate, and a cloth made of glass fiber is spread over the syrup;
A method for manufacturing an acrylic resin reinforced board, characterized in that a required amount of the syrup is further charged thereon, the above steps are repeated a required number of times, and then pressure is applied to the mold for compression molding.
ンク内でシラツプを含浸させる予備処理を行う特許請求
の範囲第２項に記載のアクリル樹脂強化板の製造方法。(3) The method for producing an acrylic resin reinforced board according to claim 2, wherein the cloth made of glass fiber is pretreated to be impregnated with syrup in a vacuum tank before being charged into the mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7402885A JPS61233039A (en) | 1985-04-08 | 1985-04-08 | Reinforced acrylic resin plate and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7402885A JPS61233039A (en) | 1985-04-08 | 1985-04-08 | Reinforced acrylic resin plate and production thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61233039A true JPS61233039A (en) | 1986-10-17 |
Family
ID=13535269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7402885A Pending JPS61233039A (en) | 1985-04-08 | 1985-04-08 | Reinforced acrylic resin plate and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61233039A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018076510A (en) * | 2011-10-21 | 2018-05-17 | アルケマ フランス | Composite material of thermoplastic (meth)acrylic resin obtained by in situ polymerization, and use of the same |
-
1985
- 1985-04-08 JP JP7402885A patent/JPS61233039A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018076510A (en) * | 2011-10-21 | 2018-05-17 | アルケマ フランス | Composite material of thermoplastic (meth)acrylic resin obtained by in situ polymerization, and use of the same |
| US10711117B2 (en) | 2011-10-21 | 2020-07-14 | Arkema France | Composite material via in-situ polymerization of thermoplastic (meth)acrylic resins and its use |
| US10800904B2 (en) | 2011-10-21 | 2020-10-13 | Arkema France | Composite material via in-situ polymerization of thermoplastic (meth)acrylic resins and its use |
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