JP2005264146A5

JP2005264146A5 -

Info

Publication number: JP2005264146A5
Application number: JP2005013775A
Authority: JP
Filing date: 2005-01-21
Publication date: 2008-03-06

Description

上記課題を解決するために、本発明に係る強化繊維プリプレグ製造用樹脂フィルムは、離型フィルムに樹脂が塗布されてなる強化繊維プリプレグ製造用樹脂フィルムにおいて、平均樹脂目付が４０ｇ／ｍ ^２以下、長手方向における塗布樹脂の目付のバラツキが±２．０ｇ／ｍ^２以下、かつ、該バラツキの変動周期が３ｍ以上であることを特徴とするものからなる。 In order to solve the above-mentioned problem, the resin film for producing reinforced fiber prepreg according to the present invention is a resin film for producing reinforced fiber prepreg obtained by applying a resin to a release film, and has an average resin basis weight of 40 g / m ² or less, The variation in the basis weight of the coating resin in the longitudinal direction is ± 2.0 g / m ² or less , and the variation period of the variation is 3 m or more.

この強化繊維プリプレグ製造用樹脂フィルムは、平均樹脂目付が４０ｇ／ｍ^２以下である。すなわち、本発明に係る強化繊維プリプレグ製造用樹脂フィルムは、とくに低樹脂目付のものに対して好適なものであり、低樹脂目付でかつ均一な目付とすることにより、強化繊維含有率が高く、均一なプリプレグの製造が可能になる。さらに、平均樹脂目付が３０ｇ／ｍ^２以下、さらには２０ｇ／ｍ^２以下とすることも可能である。 The reinforcing fiber prepreg prepared resin fill beam has an average resin basis weight is 40 g / ^{m 2} or less. In other words, the resin film for producing reinforced fiber prepreg according to the present invention is particularly suitable for those having a low resin basis weight, and by providing a uniform basis weight with a low resin basis weight, the reinforcing fiber content is high, A uniform prepreg can be manufactured. Furthermore, the average resin basis weight can be 30 g / m ² or less, and further 20 g / m ² or less.

本発明に係る強化繊維プリプレグは、強化繊維からなるシートに樹脂を含浸させた強化繊維プリプレグであって、平均樹脂目付が４０ｇ／ｍ ^２以下、長手方向における樹脂目付バラツキが±２．０ｇ／ｍ^２以下、かつ、該バラツキの変動周期が３ｍ以上であることを特徴とするものからなる。このような強化繊維プリプレグは、とくに上述した強化繊維プリプレグ製造用樹脂フィルムを使用することにより、容易にかつ確実に製造できる。
The reinforcing fiber prepreg according to the present invention is a reinforcing fiber prepreg obtained by impregnating a sheet of reinforcing fibers with a resin, having an average resin basis weight of 40 g / m ² or less and a resin basis weight variation in the longitudinal direction of ± 2.0 g / m. ² or less, and consisting of those variation period of the variation is equal to or not less than 3m. Such a reinforcing fiber prepreg can be easily and reliably manufactured by using the above-described resin film for manufacturing a reinforcing fiber prepreg.

Claims

In the resin film for reinforcing fiber prepreg production in which the resin is applied to the release film, the average resin basis weight is 40 g / m ² or less, the variation of the coating resin basis weight in the longitudinal direction is ± 2.0 g / m ² or less , and A resin film for producing a reinforced fiber prepreg, wherein the variation period of the variation is 3 m or more.

The resin film for producing reinforced fiber prepreg according to claim 1, wherein the resin is a thermosetting resin having a minimum viscosity of 0.1 to 300 poise.

A reinforcing fiber prepreg in which a sheet made of reinforcing fibers is impregnated with a resin, having an average resin basis weight of 40 g / m ² or less, a resin basis weight variation in the longitudinal direction of ± 2.0 g / m ² or less , and fluctuations in the variation A reinforcing fiber prepreg having a period of 3 m or more.

The reinforcing fiber prepreg according to claim 3 , wherein the resin is a thermosetting resin having a minimum viscosity of 0.1 to 300 poise.

In a method for producing a resin film for producing a reinforced fiber prepreg in which a resin is applied to a release film using a reverse roll coater having a metering roll, a coating roll, and a backup roll, the coating roll speed C, the backup roll speed B, the release roll A method for producing a resin film for producing a reinforced fiber prepreg, wherein the mold film speed F is in the following relationship.
0 <C / F <1.0 (1)
0.9 ≦ F / B ≦ 1.0 (2)

The method for producing a reinforced fiber prepreg resin film according to claim 5 , wherein the coating roll speed C and the release film speed F are in the following relationship.
0 <C / F ≦ 0.5 (3)

The method for producing a resin film for reinforcing fiber prepreg production according to claim 5 or 6 , wherein the metalling roll speed M and the coating roll speed C are in the following relationship.
0.5 ≦ M / C ≦ 1.2 (4)

After apply | coating resin to a release film, tension | tensile_strength is provided by the means to adsorb-and-hold a release film by decompression suction, and it winds up in roll shape continuously with a winder. Of manufacturing a resin film for manufacturing a reinforced fiber prepreg.

One holding the viscosity of the resin when the resin is coated on a release film in the range of 10 to 10,000 poises, according to the method of manufacturing a reinforced fiber prepreg for producing a resin film according to any one of claims 5-8.

The method for producing a reinforced fiber prepreg resin film according to any one of claims 5 to 9 , wherein the release film is heated when the resin is coated on the release film.

The method for producing a reinforced fiber prepreg resin film according to any one of claims 8 to 11 , wherein the tension applying means speed S and the release film speed F are in the following relationship.
0.9 ≦ F / S ≦ 1.0 (5)