JP2010248479A5

JP2010248479A5 -

Info

Publication number: JP2010248479A5
Application number: JP2010043806A
Authority: JP
Filing date: 2010-03-01
Publication date: 2012-09-13
Anticipated expiration: 2030-03-01

Description

すなわち、構成成分としてエポキシ樹脂［Ａ］、有機窒素化合物硬化剤［Ｂ］、および熱可塑性樹脂を含む炭素繊維強化複合材料用エポキシ樹脂組成物であって、成分［Ａ］が下記式（I）で表されるエポキシ樹脂［Ａ１］と、下記式（II）で表されるエポキシ樹脂のうちｎ＝１の成分［Ａ２］と、下記式（II）で表されるエポキシ樹脂のうちｎ≧２の成分［Ａ３］とを、式（１）、式（２）、式（３）および式（４）（いずれも左辺は質量比、以下同様。）を満たすように含み、かつ、前記熱可塑性樹脂がフェノキシ樹脂であることを特徴とする炭素繊維強化複合材料用エポキシ樹脂組成物である。 That is, it is an epoxy resin composition for carbon fiber reinforced composite materials containing an epoxy resin [A] , an organic nitrogen compound curing agent [B] and a thermoplastic resin as constituent components, wherein the component [A] has the following formula (I) Of the epoxy resin [A1] represented by the following formula (II) and the component [A2] of n = 1 among the epoxy resins represented by the following formula (II) and n.gtoreq.2 among the epoxy resins represented by the following formula (II) and component [A3] in the formula (1), equation (2), equation (3) and (4) (both left mass ratio, same. below) unrealized to satisfy, and the heat a carbon fiber reinforced composite material epoxy resin composition, wherein the thermoplastic resin is a phenoxy resin.

本発明の炭素繊維強化複合材料用エポキシ樹脂組成物は、粘弾性制御や靱性付与のために熱可塑性樹脂を含有するものである。 Carbon fiber reinforced composite material for the epoxy resin composition of the present invention, Ru der those containing a thermoplastic resin for controlling the viscoelasticity and toughness imparted.

このような熱可塑性樹脂の例としては、ポリメタクリル酸メチル、ポリビニルホルマール、ポリビニルブチラール、ポリビニルアセタール、ポリビニルピロリドン、芳香族ビニル単量体・シアン化ビニル単量体・ゴム質重合体から選ばれる少なくとも２種類を構成成分とする重合体、ポリアミド、ポリエステル、ポリカーボネート、ポリアリーレンオキシド、ポリスルホン、ポリエーテルスルホン、ポリイミド、フェノキシ樹脂などが挙げられる。これらの中でも、エポキシ樹脂と良好な相溶性を有し、炭素繊維強化複合材料用エポキシ樹脂組成物の流動性制御の効果が大きい点から、ポリビニルホルマールおよびフェノキシ樹脂が好ましく用いられ、この中でも下記式（I）および下記式（II）で表される化合物との相溶性が良く、難燃性が高い点から、本発明では、熱可塑性樹脂としてフェノキシ樹脂が用いられる。 Examples of such thermoplastic resin include at least one selected from polymethyl methacrylate, polyvinyl formal, polyvinyl butyral, polyvinyl acetal, polyvinyl pyrrolidone, aromatic vinyl monomer, vinyl cyanide monomer, rubbery polymer Examples thereof include polymers having two types of constituent components, polyamide, polyester, polycarbonate, polyarylene oxide, polysulfone, polyethersulfone, polyimide, phenoxy resin and the like. Among them, polyvinyl formal and phenoxy resin are preferably used in that they have good compatibility with the epoxy resin and the effect of flow control of the epoxy resin composition for carbon fiber reinforced composite material is large. In the present invention, a phenoxy resin is used as the thermoplastic resin in terms of good compatibility with the compounds represented by (I) and the following formula (II) and high flame retardancy.

（４）炭素繊維強化複合材料用エポキシ樹脂組成物のゲル化時間
炭素繊維強化複合材料用エポキシ樹脂組成物から２ｃｍ^３をサンプルとして準備し、樹脂の硬化を追跡するためにキュラストメータＶ型（日合商事(株)製）を用いて、１５０℃の温度でゲル化時間を測定した。測定開始後、トルクが０．００５Ｎ・ｍに達した時間をゲル化時間とした。 (4) Gelation time of epoxy resin composition for carbon fiber reinforced composite material 2 cm ³ is prepared as a sample from the epoxy resin composition for carbon fiber reinforced composite material, cura tomometer type V (for tracking the curing of resin) The gelation time was measured at a temperature of 150 ° C. by using a day-to-day trading company (trade name). The time when the torque reached 0.005 N · m after the start of measurement was taken as the gelation time.

実施例１〜１１の結果を表１に、比較例１〜８の結果を表２に示す。表１および表２中の炭素繊維強化複合材料用エポキシ樹脂組成物の数字は、質量部を表す。なお、実施例４は本発明の参考実施例である。 The results of Examples 1 to 11 are shown in Table 1, and the results of Comparative Examples 1 to 8 are shown in Table 2. The numbers in the epoxy resin composition for carbon fiber reinforced composite material in Tables 1 and 2 represent parts by mass. Example 4 is a reference example of the present invention.

Claims

It is an epoxy resin composition for carbon fiber reinforced composite materials containing an epoxy resin [A] , an organic nitrogen compound curing agent [B] and a thermoplastic resin as constituent components, wherein the component [A] is represented by the following formula (I) Of the epoxy resin [A1] to be mixed, the component n1 of the epoxy resin represented by the following formula (II) [A2], and the component of n.gtoreq.2 of the epoxy resin represented by the following formula (II) [A3] and the formula (1), equation (2), viewed free to satisfy equation (3) and (4) (both left mass ratio), and the thermoplastic resin in a phenoxy resin The epoxy resin composition for carbon fiber reinforced composite materials characterized by being.

(Wherein, R ₁ , R ₂ , R ₃ and R ₄ each represent a hydrogen atom or a methyl group)

(Wherein, R ₅ , R ₆ and R _{7 each} represent a hydrogen atom or a methyl group, and n represents an integer of 1 or more.)
([A1] + [A2] + [A3]) / [A] ≧ 0.8 (1)
[A1] / ([A1] + [A2] + [A3]) ≧ 0.2 formula (2)
[A2] / ([A1] + [A2] + [A3]) <0.1 formula (3)
[A3] / ([A1] + [A2] + [A3]) ≧ 0.5 (4)

The epoxy resin composition for a carbon fiber reinforced composite material according to claim 1, wherein the viscosity at 50 ° C is in the range of 50 to 3000 Pa · s.

The epoxy resin composition for a carbon fiber reinforced composite material according to claim 1 , wherein a phosphorus-based flame retardant is contained as the component [C].

The prepreg comprised from the epoxy resin composition for carbon fiber reinforced composite materials in any one of Claims 1-3 , and carbon fiber at least.

A carbon fiber reinforced composite material obtained by curing the prepreg according to claim 4 .

It is a manufacturing method of the carbon fiber reinforced composite material which shape | molds the prepreg of Claim 4 , Comprising: The manufacturing method of the carbon fiber reinforced composite material whose said shaping | molding is press molding.

An electronic and electronic component case manufactured using the carbon fiber reinforced composite material according to claim 5 .