JP4881986B2 - Photocuring method and light irradiation apparatus - Google Patents

Photocuring method and light irradiation apparatus Download PDF

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JP4881986B2
JP4881986B2 JP2009222825A JP2009222825A JP4881986B2 JP 4881986 B2 JP4881986 B2 JP 4881986B2 JP 2009222825 A JP2009222825 A JP 2009222825A JP 2009222825 A JP2009222825 A JP 2009222825A JP 4881986 B2 JP4881986 B2 JP 4881986B2
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light irradiation
metal halide
light
lamp
halide lamp
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JP2010012794A (en
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和男 大谷
富生 山本
永世 小林
幸一 金子
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Showa Denko KK
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Description

本発明は、可視光および/または近赤外光硬化性樹脂組成物を光硬化させる方法及びそのための光照射装置に関する。更に詳しくは、各種FRP成形,注型,コーティング,プライマー,パテの分野に使用される可視光および/または近赤外光硬化性樹脂組成物を光硬化させる方法及びそのための光照射装置に関する。   The present invention relates to a method of photocuring visible light and / or near-infrared light curable resin composition and a light irradiation apparatus therefor. More specifically, the present invention relates to a method for photocuring a visible light and / or near infrared light curable resin composition used in the fields of various FRP molding, casting, coating, primer, and putty, and a light irradiation apparatus therefor.

FRP成形,注型,コーティング,プライマー,パテ等の分野では、不飽和ポリエステル樹脂,ビニルエステル樹脂,ウレタンアクリレート樹脂,ポリエステルアクリレート樹脂,エポキシ樹脂,フェノール樹脂などの熱硬化性樹脂が使用されているが、これらのうち不飽和ポリエステル樹脂,ビニルエステル樹脂,ウレタンアクリレート樹脂,ポリエステルアクリレート樹脂などのラジカル重合型樹脂は、通常過酸化物触媒を添加して、常温硬化または加熱硬化により硬化させている。
しかし、常温硬化では、完全に硬化するまでに長時間を要し、作業効率が低下するばかりか、揮発性を有する反応性モノマー(スチレンモノマーなど)の揮発も多くなり、作業現場の大気汚染、臭気発生を招き、さらに樹脂組成物の配合比率の変化による性能の低下、樹脂量の損失と引火等の危険性を招く。また、温度により樹脂のゲル化時間が大きく異なるため、触媒量の加減が難しく、可使時間の調整に失敗するトラブルが多い。
また、加熱硬化では硬化炉が必要となり、そのため大きさの制約や莫大な設備投資が必要となるなどの問題点がある。さらに、直接過酸化物触媒を取り扱う危険を常に伴い、更に、現場で過酸化物触媒をスポイト等で秤り、樹脂に混合するといった煩雑な操作を伴う等の問題点もあった。
Thermosetting resins such as unsaturated polyester resins, vinyl ester resins, urethane acrylate resins, polyester acrylate resins, epoxy resins, and phenol resins are used in the fields of FRP molding, casting, coating, primer, putty, etc. Of these, radical polymerization resins such as unsaturated polyester resins, vinyl ester resins, urethane acrylate resins, and polyester acrylate resins are usually cured by room temperature curing or heat curing with the addition of a peroxide catalyst.
However, at room temperature curing, it takes a long time to completely cure, and not only the work efficiency decreases, but also the volatilization of reactive monomers (such as styrene monomer) having volatility increases, Odor is generated, and further, the performance is lowered due to the change in the blending ratio of the resin composition, and the loss of the resin amount and the risk of ignition are caused. In addition, since the resin gelation time varies greatly depending on the temperature, it is difficult to adjust the amount of the catalyst, and there are many troubles in failing to adjust the pot life.
In addition, a curing furnace is required for heat curing, which causes problems such as size restrictions and enormous capital investment. In addition, there is always the danger of handling the peroxide catalyst directly, and there are also problems such as complicated operations such as weighing the peroxide catalyst on the spot with a dropper and mixing it with the resin.

以上の問題点を解決するために光硬化性樹脂を使用して光硬化する技術が開示されている。可視光から近赤外光領域の光を使用して硬化させることにより、安全で短時間の成形が可能となり、過酸化物硬化の問題点を解決しうることが提案された。詳細な記述は、ハンドレイアップ成形として特開平9−77836号公報,フィラメントワインディング成形として特開平10−195156号公報,特開平10−182767号公報,特開平10−182768号公報,特開平10−182769号公報,コンクリート用プライマー、パテとして特開平11−49835号公報,特開平11−49834号公報,特開平11−49833号公報,FRP防水として特開平11−263857号公報などに見られる。
しかし、何れの場合も、樹脂組成物を効率良く、且つ均一に光硬化させるという点においては、必ずしも満足し得るものではなかった。
In order to solve the above problems, a technique for photocuring using a photocurable resin is disclosed. It has been proposed that curing using visible light to near-infrared light enables safe and short-time molding and can solve the problems of peroxide curing. Detailed descriptions are described in Japanese Patent Application Laid-Open No. 9-77836 as hand lay-up molding, Japanese Patent Application Laid-Open No. 10-195156, Japanese Patent Application Laid-Open No. 10-182767, Japanese Patent Application Laid-Open No. 10-182768, and Japanese Patent Application Laid-Open No. 10-182. No. 182769, concrete primer and putty can be found in JP-A-11-49835, JP-A-11-49834, JP-A-11-49833, and FRP waterproofing in JP-A-11-263857.
However, in any case, it was not always satisfactory in terms of efficiently and uniformly photocuring the resin composition.

本発明はこうした現状に鑑み、可視光および/または近赤外光硬化性樹脂組成物を効率良く、且つ均一に光硬化させる方法およびそのための光照射装置を提供することを目的とする。   In view of the present situation, an object of the present invention is to provide a method for efficiently and uniformly photocuring visible light and / or near-infrared light curable resin composition and a light irradiation apparatus therefor.

本発明者らは、鋭意研究の結果、380〜450nmの波長領域の強度5mW/cm2以上、均斉度70%以上で光を樹脂組成物に照射することによりその課題を解決し得ることを見出し、本発明に到達した。
すなわち本発明は、可視光硬化性樹脂を含浸したガラスロービングをマンドレルに巻き取り、該マンドレルを回転させながら、メタルハライドランプ及び水銀灯より選ばれる1種以上のランプを2個以上装備した可視光を放射する光照射装置により、380〜450nmの波長領域の強度5mW/cm2以上、20cm×1mの照射範囲内における、ある測定箇所の最大照度とそれ以外の測定箇所の最小照度とから求めた均斉度70%以上光を照射することを特徴とする光硬化方法、
を提供するものである。
As a result of diligent research, the present inventors have found that the problem can be solved by irradiating the resin composition with light at an intensity of 5 mW / cm 2 or more in a wavelength region of 380 to 450 nm and a uniformity of 70% or more. The present invention has been reached.
That is, the present invention radiates visible light equipped with two or more kinds of lamps selected from a metal halide lamp and a mercury lamp while winding a glass roving impregnated with a visible light curable resin around a mandrel and rotating the mandrel. The degree of uniformity obtained from the maximum illuminance at one measurement location and the minimum illuminance at other measurement locations within an irradiation range of 20 cm × 1 m with an intensity of 5 mW / cm 2 or more in the wavelength region of 380 to 450 nm by the light irradiation device light curing method but which is characterized by irradiating the 70% of the light,
Is to provide.

本発明の光硬化方法及び光照射装置によれば、光硬化性樹脂組成物を効率よく、且つ均一に硬化させることができる。   According to the photocuring method and the light irradiation apparatus of the present invention, the photocurable resin composition can be cured efficiently and uniformly.

本発明の実施例1のシールドビーム型600Wメタルハライドランプ3灯付き光照射装置の斜視図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view of the light irradiation apparatus with 3 shield beam type 600W metal halide lamps of Example 1 of this invention. 本発明の実施例3の拡散型2kWメタルハライドランプ2灯付き光照射装置の斜視図である。It is a perspective view of the light irradiation apparatus with 2 spreading | diffusion type 2kW metal halide lamps of Example 3 of this invention. 本発明の実施例4の拡散/集光切り替え型シールドビーム型600Wメタルハライドランプ付き光照射装置の説明図である。It is explanatory drawing of the light irradiation apparatus with a diffusion / condensation switching type | mold shield beam type | mold 600W metal halide lamp of Example 4 of this invention. 本発明の実施例5の往復移動機能装置に取り付けた380〜450nm強化シールドビーム型400Wメタルハライドランプ3灯付き光照射装置の斜視図である。It is a perspective view of the light irradiation apparatus with 3 lights of 380-450 nm reinforcement | strengthening shield beam type 400W metal halide lamps attached to the reciprocating movement functional apparatus of Example 5 of this invention.

1a 光照射装置
1b 光照射装置
1c 光照射装置
1d 光照射装置
2 灯体
3a 600Wメタルハライドランプ
3b 拡散2kWメタルハライドランプ
3c 強化600Wメタルハライドランプ
3d 400Wメタルハライドランプ
4 前面ガラス
5 拡散ガラス
6 往復移動機能装置
6a スライダ
6b 基部
6c 駆動装置
6d チェーン
6e ガイド
7a 枠体
7b 枠体
8 キャスター付き脚部材
DESCRIPTION OF SYMBOLS 1a Light irradiation apparatus 1b Light irradiation apparatus 1c Light irradiation apparatus 1d Light irradiation apparatus 2 Lamp body 3a 600W metal halide lamp 3b Diffusion 2kW metal halide lamp 3c Reinforced 600W metal halide lamp 3d 400W metal halide lamp 4 Front glass 5 Diffusion glass 6 Reciprocating movement function apparatus 6a Slider 6b Base 6c Driving device 6d Chain 6e Guide 7a Frame 7b Frame 8 Leg member with casters

本発明は、前記のように可視光硬化性樹脂を含浸したガラスロービングをマンドレルに巻き取り、該マンドレルを回転させながら、光を照射して硬化させる方法であり、光照射装置としては、メタルハライドランプ及び水銀灯より選ばれる1種以上のランプを1個以上装備した装置とし、380〜450nmの波長領域の強度5mW/cm2以上、好ましくは10mW/cm2以上、均斉度70%以上で光を照射する。 The present invention is a method of winding a glass roving impregnated with a visible light curable resin as described above around a mandrel and irradiating and curing the mandrel while rotating the mandrel. And an apparatus equipped with one or more lamps selected from mercury lamps, and irradiates light with an intensity of 5 mW / cm 2 or more, preferably 10 mW / cm 2 or more and a uniformity of 70% or more in the wavelength region of 380 to 450 nm. To do.

本発明で使用するメタルハライドランプは、ナトリウム,タリウム,インジウム,スカンジウム,ジスプロシウム等の金属蒸気中の放電により発光させるもので、水銀灯に比べてランプ効率が1.6〜1.8倍と高く、白色光で演色性に優れており、屋内外の照明用として幅広く使用されている。本発明においてはジスプロシウムを配合して380〜450nmを強化したものが特に有効である。
本発明で使用する水銀灯は、蒸気圧の高い水銀蒸気中の放電による発光や発生した紫外線による発光体からの発光を利用したもので、道路照明、工事照明など大規模な照明に多用されいるものが一般的で、公知のものが使用できる。
なお、メタルハライドランプや水銀灯などに使用する安定器としては、ランプ電力,電源電圧,周波数などに対応して異なるが、一般型,低始動電流型,定電力型,直列定電力型,自動調光型などを挙げることができる。
The metal halide lamp used in the present invention emits light by discharge in a metal vapor such as sodium, thallium, indium, scandium, dysprosium, etc., and the lamp efficiency is 1.6 to 1.8 times higher than that of a mercury lamp, and is white. It is light and excellent in color rendering, and is widely used for indoor and outdoor lighting. In the present invention, reinforced 380 to 450 nm with dysprosium is particularly effective.
The mercury lamp used in the present invention uses light emitted from a discharge in mercury vapor having a high vapor pressure or light emitted from an illuminant due to generated ultraviolet light, and is often used for large-scale lighting such as road lighting and construction lighting. Are known and known ones can be used.
Ballasts used for metal halide lamps and mercury lamps vary depending on lamp power, power supply voltage, frequency, etc., but general type, low starting current type, constant power type, series constant power type, automatic dimming Examples include molds.

本発明の光照射装置は、上記のメタルハライドランプ及び水銀灯から選ばれたランプを1個以上使用し、被照射物である樹脂組成物に対し380〜450nmの波長領域の強度5mW/cm2以上、均斉度70%以上での光照射を可能としたものである。
さらに、この光照射装置に往復移動機能を取り付けることで、より広範囲に効率よく光照射できるようにすることもできる。さらにまた、シールドビーム型ランプと拡散レンズを組み合わせて、拡散/集光切り替え型光照射装置とすることで、広い面積を均斉度よく照射でき、且つ狭い面積を強い照度で照射できるようにすることも可能である。
The light irradiation apparatus of the present invention uses at least one lamp selected from the above metal halide lamps and mercury lamps, and has an intensity of 5 mW / cm 2 or more in a wavelength region of 380 to 450 nm with respect to the resin composition as an irradiation object. This enables light irradiation with a uniformity of 70% or more.
Furthermore, by attaching a reciprocating function to the light irradiation device, it is possible to efficiently irradiate light over a wider range. Furthermore, by combining a shielded beam type lamp and a diffusing lens into a diffusion / condensation switching type light irradiation device, it is possible to irradiate a wide area with high uniformity and to irradiate a narrow area with strong illuminance. Is also possible.

次に、実施例に基づいて本発明をさらに詳細に説明するが、本発明はこれらに限定されるものではない。   EXAMPLES Next, although this invention is demonstrated further in detail based on an Example, this invention is not limited to these.

実施例1(シールドビーム型600Wメタルハライドランプ3灯付き光照射装置)
色温度5500Kのシールドビーム型600Wメタルハライドランプを3灯を組み合わせ、図1に示すシールドビーム型600Wメタルハライドランプ3灯付き光照射装置1aを作製した。この光照射装置1aは、シールドビーム型600Wメタルハライドランプ3aを有する灯体2を枠体7aに3個取り付けた構造を有するものである。
(照度および均斉度の確認)
この光照射装置1aを点灯させ、前面から50cmの距離で、380〜450nmの強度を測定すると20cm×1mの照射範囲内で、最大55mW/cm2、最小40mW/cm2、均斉度70%以上となっていることを確認した。(光硬化の確認)
可視光硬化型ビニルエステル樹脂、商品名リポキシLC−720(昭和高分子(株)製)を、ガラスロ−ビング(4026TX/日東紡(株)製)に含浸させ、その後十分に余剰樹脂を除き、樹脂の含浸したガラスロ−ビングを、直径20cm、長さ1mの円筒形のマンドレルに厚さが15mmとなるまで、マンドレル回転速度24回転/分で繊維が一方向で50vol%となるようにワインディングを行った。ワインディング終了後、上記光照射装置1aを使用して50cmの距離でマンドレルを回転速度24回転/分で回転させながら光を照射したところ25分で内部まで完全に硬化した。
Example 1 (Light irradiation apparatus with 3 shielded beam 600W metal halide lamps)
The light irradiation apparatus 1a with three shield beam type 600W metal halide lamps shown in FIG. 1 was manufactured by combining three shield beam type 600W metal halide lamps having a color temperature of 5500K. This light irradiation device 1a has a structure in which three lamp bodies 2 each having a shield beam type 600W metal halide lamp 3a are attached to a frame body 7a.
(Confirmation of illuminance and uniformity)
The light irradiation device 1a is lit, at a distance of 50cm from the front, in the irradiation range of 20 cm × 1 m when measuring the intensity of 380 to 450 nm, up to 55 mW / cm 2, minimum 40 mW / cm 2, the uniformity ratio of 70% or more It was confirmed that (Confirmation of photocuring)
Visible light curable vinyl ester resin, trade name Lipoxy LC-720 (manufactured by Showa Polymer Co., Ltd.) was impregnated into glass roving (4026TX / manufactured by Nittobo Co., Ltd.), and then the excess resin was sufficiently removed, Winding the resin-impregnated glass roving on a cylindrical mandrel with a diameter of 20 cm and a length of 1 m so that the fiber is 50 vol% in one direction at a mandrel rotation speed of 24 rotations / minute until the thickness becomes 15 mm. went. After the completion of winding, light was irradiated while rotating the mandrel at a rotation speed of 24 rotations / minute at a distance of 50 cm using the light irradiation device 1a, and the inside was completely cured in 25 minutes.

実施例2(380〜450nm強化シールドビーム型600Wメタルハライドランプ3灯付き光照射装置)
図1に示す光照射装置1aのシールドビーム型600Wメタルハライドランプ3灯を、色温度6000Kのジスプロシウム(Dy)を配合した380〜450nm強化シールドビーム型600Wメタルハライドランプを3灯に代え、その他は全く同様にした光照射装置1a’を製作した。
(照度および均斉度の確認)
この光照射装置1a’を点灯させ、前面から50cmの距離で、380〜450nmの強度を測定すると20cm×1mの照射範囲内で、最大63mW/cm2、最小45mW/cm2、均斉度70%以上となっていることを確認した。
(光硬化の確認)
実施例1と同様にリポキシLC−720を、ガラスロ−ビング(4026TX)に含浸させ、その後十分に余剰樹脂を除き、樹脂の含浸したガラスロ−ビングを、直径20cm、長さ1mの円筒形のマンドレルに厚さが15mmとなるまで、マンドレル回転速度24回転/分で繊維が一方向で50vol%となるようにワインディングを行った。ワインディング終了後、上記光照射装置1a’を使用して50cmの距離でマンドレルを回転速度24回転/分で回転させながら光を照射したところ20分で内部まで完全に硬化した。
Example 2 (Light irradiation apparatus with 380 to 450 nm enhanced shield beam type 600 W metal halide lamp)
The three shield beam type 600W metal halide lamps of the light irradiation apparatus 1a shown in FIG. 1 are replaced with three lamps of the 380-450 nm reinforced shield beam type 600W metal halide lamps blended with dysprosium (Dy) having a color temperature of 6000K, and the others are exactly the same. The light irradiation device 1a ′ thus prepared was manufactured.
(Confirmation of illuminance and uniformity)
Light the light irradiation device 1a ', at a distance of 50cm from the front, in the irradiation range of 20 cm × 1 m when measuring the intensity of 380 to 450 nm, up to 63 mW / cm 2, minimum 45 mW / cm 2, the uniformity ratio of 70% It was confirmed that it was above.
(Confirmation of photocuring)
Lipoxy LC-720 was impregnated into glass roving (4026TX) in the same manner as in Example 1, and then the surplus resin was sufficiently removed, and the resin-impregnated glass roving was formed into a cylindrical mandrel having a diameter of 20 cm and a length of 1 m. Winding was performed so that the fiber was 50 vol% in one direction at a mandrel rotation speed of 24 revolutions / minute until the thickness reached 15 mm. After the completion of winding, light was irradiated while rotating the mandrel at a rotational speed of 24 rotations / minute at a distance of 50 cm using the light irradiation device 1a ′, and the inside was completely cured in 20 minutes.

実施例3(拡散型2KWメタルハライドランプ2灯付き光照射装置)
拡散型2KWメタルハライドランプを2灯を組み合わせ、図2に示す2KWメタルハライドランプ2灯付き光照射装置1bを作製した。この光照射装置1bは、拡散型2KWメタルハライドランプ3bと前面ガラス4を有する灯体2を2個、キャスター付き脚部材8に取り付けた構造を有するものである。
(照度および均斉度の確認)
この光照射装置1bを点灯させ、光照射装置1cの前面から1mの距離で、380〜450nmの強度を測定すると1m×1mの照射範囲内で、最大35mW/cm2、最小23mW/cm2、均斉度70%以上となっていることを確認した。
(光硬化の確認)
可視光硬化型ビニルエステル樹脂、商品名リポキシLC−720(昭和高分子(株)製)を、1m×1mの大きさの#450チョップドストランドガラスマット3プライにガラスコンテントが25Wt%になるように含浸し、上記光照射装置1bを使用して1mの距離で10分間照射したところ10分で内部まで完全に硬化した。
Example 3 (Light irradiation device with two diffused 2KW metal halide lamps)
A light irradiation apparatus 1b with two 2KW metal halide lamps shown in FIG. 2 was produced by combining two diffusion type 2KW metal halide lamps. This light irradiation device 1b has a structure in which two lamp bodies 2 each having a diffusion type 2KW metal halide lamp 3b and a front glass 4 are attached to a leg member 8 with casters.
(Confirmation of illuminance and uniformity)
The light irradiation device 1b is lit, at a distance of 1m from the front of the light irradiation device 1c, within the irradiation range of 1m × 1m when measuring the intensity of 380 to 450 nm, up to 35 mW / cm 2, minimum 23 mW / cm 2, It was confirmed that the uniformity was 70% or more.
(Confirmation of photocuring)
Visible light curable vinyl ester resin, trade name Lipoxy LC-720 (manufactured by Showa High Polymer Co., Ltd.) with a 1 m × 1 m size # 450 chopped strand glass mat 3 ply so that the glass content is 25 Wt%. When impregnated and irradiated for 10 minutes at a distance of 1 m using the light irradiation device 1b, the inside was completely cured in 10 minutes.

実施例4(拡散/集光切り替え型シールドビーム型600Wメタルハライドランプ付き光照射装置)
拡散レンズとシールドビーム型600Wメタルハライドランプを組み合わせ、図3に示す拡散/集光切り替え型シールドビーム型600Wメタルハライドランプ付き光照射装置1cを作製した。この光照射装置1cはシールドビーム型600Wメタルハライドランプ3aを有する灯体2を枠体8bに取り付けたものであり、そのランプの前面には着脱式拡散ガラス5を取り付ける。
(照度および均斉度の確認)
この光照射装置1cを点灯させ、拡散ガラス5を付けた拡散モードで光照射装置1cの前面から30cmで、380〜450nmの強度を測定すると15cm×50cmの照射範囲内で、最大28mW/cm2、最小18mW/cm2となっていることを確認した。
また、拡散用ガラス5を外し、集光モードで光照射装置1cの前面から30cmで、380〜450nmの強度を測定すると15cm×15cmの照射範囲4d内で、最大205mW/cm2、最小185mW/cm2となっていることを確認した。
(光硬化の確認)
リポキシLC−720:50部、炭酸カルシウム:40部、タルク:10部を混合し可視光硬化型パテとしたものを直径5cm、深さ1cmの円形の型の中に注入し、上記光照射装置1c(集光モード)を使用して30cmの距離で15分間照射したところ15分で内部まで完全に硬化した。
Example 4 (Diffusion / Condensation switching type shield beam type 600W light irradiation device with metal halide lamp)
A diffusion lens and a shield beam type 600W metal halide lamp were combined to produce a light irradiation device 1c with a diffusion / condensation switching type shield beam type 600W metal halide lamp shown in FIG. This light irradiation device 1c has a lamp body 2 having a shield beam type 600W metal halide lamp 3a attached to a frame body 8b, and a detachable diffusion glass 5 is attached to the front face of the lamp.
(Confirmation of illuminance and uniformity)
When the intensity of 380 to 450 nm is measured at 30 cm from the front surface of the light irradiation device 1c in the diffusion mode with the light irradiation device 1c turned on and in the diffusion mode with the diffusion glass 5, the maximum is 28 mW / cm 2 within the irradiation range of 15 cm × 50 cm. It was confirmed that the minimum value was 18 mW / cm 2 .
Further, when the intensity of 380 to 450 nm is measured at 30 cm from the front surface of the light irradiation device 1c in the condensing mode by removing the diffusion glass 5, the maximum is 205 mW / cm 2 and the minimum is 185 mW / in the irradiation range 4d of 15 cm × 15 cm. It was confirmed that it was cm 2 .
(Confirmation of photocuring)
Lipoxy LC-720: 50 parts, calcium carbonate: 40 parts, talc: 10 parts mixed to form a visible light curable putty is injected into a circular mold having a diameter of 5 cm and a depth of 1 cm. Using 1c (condensing mode), irradiation was performed for 15 minutes at a distance of 30 cm, and the inside was completely cured in 15 minutes.

実施例5(往復移動機能付き380〜450nm強化シールドビーム型400Wメタルハライドランプ3灯付き装置)
380〜450nm強化シールドビーム型400Wメタルハライドランプ3灯付き光照射装置1dを往復移動機能装置6と組み合わせ、図4に示す拡散/集光切り替え型シールドビーム型400Wメタルハライドランプ付き光照射装置を作製した。
この往復移動機能装置6は、スライダ6aに光照射装置1dを取り付けて、任意の高さに上下できるもので、基部6bに取り付けられた駆動装置6cが、スライダ6aと連結されたチェーン6dを動かすことにより、このスライダ6aが2本のガイド6eに案内されて上下する構造となっている。なお、上下の移動速度は変化させることができる。
(移動機能の確認)
光照射装置1dを往復移動機能装置6に取り付けて点灯させ、光照射装置1d前面から50cmの距離で上下2mの長さを10cm/分〜5m/分の速度範囲での実施例2の20cm×1mの範囲の強度が一定速度で往復移動できることを確認した。
(光硬化の確認)
幅1m、高さ2mのコンクリート板に、可視光硬化型ビニルエステル樹脂プライマー、商品名リポキシLC−720P(昭和高分子(株)製)を、200g/m2塗布し、光照射装置1dを往復移動機能装置6に取り付けて点灯させ、光照射装置1dの前面から50cmの距離で上下2mの長さを20cm/分の速度で一往復させたところ完全硬化した。
Example 5 (device with 380 to 450 nm enhanced shield beam type 400 W metal halide lamp with reciprocating function)
The light irradiation device 1d with three 380 to 450 nm reinforced shield beam type 400W metal halide lamps was combined with the reciprocating function device 6 to produce a light irradiation device with a diffusion / condensation switching type shield beam type 400W metal halide lamp shown in FIG.
The reciprocating function device 6 can be moved up and down to an arbitrary height by attaching the light irradiation device 1d to the slider 6a, and the driving device 6c attached to the base 6b moves the chain 6d connected to the slider 6a. Thus, the slider 6a is guided by the two guides 6e to move up and down. Note that the vertical movement speed can be changed.
(Move function check)
The light irradiation device 1d is attached to the reciprocating movement function device 6 so as to be lit, and the length of 2 m above and below the distance of 50 cm from the front surface of the light irradiation device 1d is 20 cm × of Example 2 in a speed range of 10 cm / min to 5 m / min. It was confirmed that the strength in the range of 1 m can be reciprocated at a constant speed.
(Confirmation of photocuring)
A visible light curable vinyl ester resin primer, trade name Lipoxy LC-720P (manufactured by Showa Polymer Co., Ltd.), 200 g / m 2, is applied to a concrete plate having a width of 1 m and a height of 2 m, and the light irradiation device 1d is reciprocated. When it was attached to the mobile function device 6 and turned on, and it was reciprocated at a speed of 20 cm / min at a distance of 50 cm from the front surface of the light irradiation device 1 d at a distance of 50 cm, it was completely cured.

実施例6(600W水銀灯3灯付き光照射装置)
実施例1のシールドビーム型600Wメタルハライドランプ3灯を600W水銀灯3灯に替え1aと同様の形状の光照射装置1a’’を作製した。
(照度および均斉度の確認)
この光照射装置1a’’を点灯させ、前面から40cmの距離で、380〜450nmの強度を測定すると、20cm×1mの照射範囲内で、最大45mW/cm2、最小32mW/cm2、均斉度70%以上となっていることを確認した。(光硬化の確認)
可視光硬化型ビニルエステル樹脂、商品名リポキシLC−720(昭和高分子(株)製)を、ガラスロ−ビング(4026TX/日東紡(株)製)に含浸させ、その後十分に余剰樹脂を除き、樹脂の含浸したガラスロ−ビングを、直径20cm、長さ1mの円筒形のマンドレルに厚さが15mmとなるまで、マンドレル回転速度24回転/分で繊維が一方向で50vol%となるようにワインディングを行った。ワインディング終了後、上記光照射装置1a’’を使用して50cmの距離でマンドレルを回転速度24回転/分で回転させながら光を照射したところ35分で内部まで完全に硬化した。
Example 6 (light irradiation device with three 600 W mercury lamps)
A light irradiation device 1a ″ having the same shape as 1a was produced by replacing the three shield beam type 600W metal halide lamps of Example 1 with three 600W mercury lamps.
(Confirmation of illuminance and uniformity)
When this light irradiation device 1a ″ is turned on and the intensity of 380 to 450 nm is measured at a distance of 40 cm from the front surface, the maximum 45 mW / cm 2 , the minimum 32 mW / cm 2 , and the uniformity within the irradiation range of 20 cm × 1 m It was confirmed that it was 70% or more. (Confirmation of photocuring)
Visible light curable vinyl ester resin, trade name Lipoxy LC-720 (manufactured by Showa Polymer Co., Ltd.) was impregnated into glass roving (4026TX / manufactured by Nittobo Co., Ltd.), and then the excess resin was sufficiently removed, Winding the resin-impregnated glass roving on a cylindrical mandrel with a diameter of 20 cm and a length of 1 m so that the fiber is 50 vol% in one direction at a mandrel rotation speed of 24 rotations / minute until the thickness becomes 15 mm. went. After completion of the winding, light was irradiated while rotating the mandrel at a rotation speed of 24 rotations / minute at a distance of 50 cm using the light irradiation device 1a ″, and the inside was completely cured in 35 minutes.

比較例
(照度および均斉度の確認)
一般照明用250Wメタルハライドランプを1灯を点灯させ、前面から50cmの距離で、380〜450nmの強度を測定すると30cm×30cmの照射範囲内で、最大3mW/cm2、最小1mW/cm2となっており、均斉度が不十分であることを確認した。
(光硬化の確認)
リポキシLC−720(昭和高分子(株)製)を、30cm×30cmの大きさの#450チョップドストランドガラスマット3プライに、ガラスコンテントが25Wt%になるように含浸し、上記の一般照明用250Wメタルハライドランプを使用して50cmの距離で30分間照射したところ中央の5cm×5cm程度のエリアは内部まで完全に硬化したが、端の部分は内部まで硬化させることができなかった。
Comparative example (confirmation of illuminance and uniformity)
The general lighting 250W metal halide lamp to light the one light, is at a distance of 50cm from the front, in the irradiation range of 30 cm × 30 cm when measuring the intensity of 380 to 450 nm, up to 3 mW / cm 2, the minimum 1 mW / cm 2 It was confirmed that the uniformity was insufficient.
(Confirmation of photocuring)
Lipoxy LC-720 (manufactured by Showa Polymer Co., Ltd.) was impregnated into 3 plies of # 450 chopped strand glass mat of 30 cm × 30 cm so that the glass content was 25 Wt%, and the above-mentioned 250 W for general lighting was used. When a metal halide lamp was used for irradiation for 30 minutes at a distance of 50 cm, the central area of about 5 cm × 5 cm was completely cured to the inside, but the end portion could not be cured to the inside.

Claims (4)

可視光硬化性樹脂を含浸したガラスロービングをマンドレルに巻き取り、該マンドレルを回転させながら、メタルハライドランプ及び水銀灯より選ばれる1種以上のランプを2個以上装備した可視光を放射する光照射装置により、380〜450nmの波長領域の強度5mW/cm2以上、20cm×1mの照射範囲内における、ある測定箇所の最大照度とそれ以外の測定箇所の最小照度とから求めた均斉度70%以上光を照射することを特徴とする光硬化方法。 Winding a glass roving impregnated with a visible light curable resin around a mandrel, and rotating the mandrel, with a light irradiation device that emits visible light equipped with two or more lamps selected from a metal halide lamp and a mercury lamp intensity in the wavelength range of 380~450nm is 5 mW / cm 2 or more, within the irradiation range of 20 cm × 1 m, the maximum luminance and a uniformity ratio determined from the minimum illuminance of the other measurement points is the measurement point is less than 70% The photocuring method characterized by irradiating the light. メタルハライドランプが380〜450nmを強化するためにジスプロシウムを使用したメタルハライドランプである請求項1に記載の光硬化方法。   The photocuring method according to claim 1, wherein the metal halide lamp is a metal halide lamp using dysprosium to strengthen 380 to 450 nm. 前記ランプがシールドビーム型メタルハライドランプである請求項1又は2に記載の光硬化方法。   The photocuring method according to claim 1, wherein the lamp is a shield beam type metal halide lamp. 前記可視光硬化性樹脂が可視光硬化型ビニルエステル樹脂である請求項1〜3のいずれかに記載の光硬化方法。   The photocuring method according to claim 1, wherein the visible light curable resin is a visible light curable vinyl ester resin.
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