JPH06112608A - Glass cloth for glass-epoxy printed wiring board - Google Patents
Glass cloth for glass-epoxy printed wiring boardInfo
- Publication number
- JPH06112608A JPH06112608A JP4277690A JP27769092A JPH06112608A JP H06112608 A JPH06112608 A JP H06112608A JP 4277690 A JP4277690 A JP 4277690A JP 27769092 A JP27769092 A JP 27769092A JP H06112608 A JPH06112608 A JP H06112608A
- Authority
- JP
- Japan
- Prior art keywords
- glass cloth
- prepreg
- coupling agent
- silane coupling
- glass
- 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
Landscapes
- Woven Fabrics (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明はプリント配線基板用の基
材として使用されるガラスクロスに関し、特にガラス−
エポキシプリント配線基板用の基材として使用されるガ
ラスクロスに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass cloth used as a substrate for a printed wiring board, and more particularly to a glass cloth.
The present invention relates to a glass cloth used as a base material for an epoxy printed wiring board.
【0002】[0002]
【従来の技術】プリント配線基板の成形プロセスに於い
て、ガラスクロスは一時プリプレグの形態をとるが、こ
のプリプレグ中には数多くのボイドが含まれている。こ
れらのボイドの大部分は後のプレス成形時に於いて除か
れるが、若干のボイドが残り半田耐熱性、絶縁抵抗の低
下などの問題が生じている。この問題を解決する方法と
して、遅硬化性で脱泡性の良いN−β−(アミノエチ
ル)−γ−アミノプロピルトリメトキシシランに塩化ベ
ンジルを付加したシランカップリング剤が用いられてい
る。(特開平2−305749号公報)2. Description of the Related Art In the process of molding a printed wiring board, a glass cloth takes the form of a temporary prepreg, and this prepreg contains many voids. Most of these voids are removed during the subsequent press molding, but some voids remain and problems such as solder heat resistance and insulation resistance decrease occur. As a method for solving this problem, a silane coupling agent in which benzyl chloride is added to N-β- (aminoethyl) -γ-aminopropyltrimethoxysilane having slow curing property and good defoaming property is used. (Japanese Patent Laid-Open No. 2-305749)
【0003】[0003]
【発明が解決しようとする課題】プリント配線基板内部
に残るボイドをなくすために、脱泡性の良いシランカッ
プリング剤としてN−β−(アミノエチル)−γ−アミ
ノプロピルトリメトキシシランに塩化ベンジルを付加し
たシランカップリング剤が用いられている。しかしこの
方法では、使用できるシランカップリング剤は限定さ
れ、シランカップリング剤自身の性能に因り、プリント
配線基板の一般特性が左右される。本発明は、シランカ
ップリング剤の種類に関係なく、容易に、かつ安価に脱
泡性の良いプリプレグを得ることができるガラスクロス
の開発を目的とする。In order to eliminate voids remaining inside the printed wiring board, benzyl chloride is added to N-β- (aminoethyl) -γ-aminopropyltrimethoxysilane as a silane coupling agent having a good defoaming property. A silane coupling agent added with is used. However, in this method, the silane coupling agent that can be used is limited, and the general characteristics of the printed wiring board are influenced by the performance of the silane coupling agent itself. An object of the present invention is to develop a glass cloth capable of easily and inexpensively obtaining a prepreg having good defoaming property regardless of the type of silane coupling agent.
【0004】[0004]
【発明が解決しようとする課題】本発明では、シランカ
ップリング剤のほかに塩化アンモニゥムを用いてガラス
クロスを処理することにより、前記課題の解決を図ろう
とするものである。本発明で使用されるシランカップリ
ング剤としては、先に挙げたN−β−(アミノエチル)
−γ−アミノプロピルトリメトキシシランやその塩酸
塩、又エポキシシラン等が単独、又は混合して使用する
ことができる。シランカップリング剤の濃度としては
0.05〜1.0%の範囲が望ましい。又、塩化アンモ
ニゥムの濃度としては0.01〜0.5重量%の範囲が
望ましい。本発明のガラスクロスは加熱脱油され、集束
剤の除去されたものが使用される。集束剤の除去された
ガラスクロスの上にシランカップリング剤と塩化アンモ
ニゥムが処理により付着される。SUMMARY OF THE INVENTION The present invention is intended to solve the above problems by treating glass cloth with ammonium chloride in addition to the silane coupling agent. Examples of the silane coupling agent used in the present invention include N-β- (aminoethyl) mentioned above.
-Γ-aminopropyltrimethoxysilane, its hydrochloride, epoxysilane, etc. can be used alone or in combination. The concentration of the silane coupling agent is preferably in the range of 0.05 to 1.0%. The concentration of ammonium chloride is preferably in the range of 0.01 to 0.5% by weight. The glass cloth of the present invention is used after being deoiled by heating to remove the sizing agent. The silane coupling agent and ammonium chloride are deposited on the glass cloth from which the sizing agent has been removed by treatment.
【0005】[0005]
【作用】塩化アンモニゥムは、エポキシ基と反応するた
めにエポキシ基同志の重合反応を遅らせる作用を有す
る。そのために塩化アンモニゥムで処理されたガラスク
ロスはマトリックス樹脂として使用されるエポキシ樹脂
を遅硬化性にすることにより、脱泡性の良いプリプレグ
を得ることができる。即ち、プリプレグを積層し、加熱
プレスする積層工程において、エポキシ樹脂の硬化反応
の速度が小さくなるため、樹脂の粘度の上昇速度が小さ
く、従って、積層プリプレグ中の脱泡可能時間がそれだ
け長くなる。その結果、得られた積層板中に含まれるボ
イドの数が少くなる。[Function] Ammonium chloride has a function of delaying the polymerization reaction of the epoxy groups because it reacts with the epoxy group. Therefore, the glass cloth treated with ammonium chloride makes it possible to obtain a prepreg having good defoaming property by making the epoxy resin used as the matrix resin slow-curing. That is, in the laminating step in which the prepregs are laminated and heated and pressed, the curing reaction speed of the epoxy resin is reduced, so that the viscosity increase rate of the resin is small, and therefore the defoamable time in the laminated prepreg is increased accordingly. As a result, the number of voids contained in the obtained laminate is small.
【0006】[0006]
【実施例】N−β−(アミノエチル)−γ−アミノプロ
ピルトリメトキシシラン塩酸塩の0.5重量%水溶液を
調整し、これに塩化アンモニゥム0.2重量%と酢酸を
加え、pHを4.0とした。(処理液)この処理液にガ
ラスクロスWEA18W105[日東紡績(株)製]を
浸漬し、次ぎにガラスクロスに対し約30%の処理液保
持率になるようにマングルで絞り、110℃で5分乾燥
した。次ぎにNEMA規格FR−4処方にしたがって樹
脂ワニスを調合した。 エピコート5046−B−8[油化シェルエポキシ(株)製]…100部 エピコート154 [油化シェルエポキシ(株)製]… 20部 ジシアンジアミド … 4部 2−エチル−4−メチルイミダゾール …0.2部 メチルエチルケトン … 15部 この調合ワニスにガラスクロスを含浸させ、130℃で
7分乾燥しプリプレグとした。このプリフレグを8枚重
ね、更に上下に銅箔を重ね、30kg/cm2の圧力で
170℃、90分加熱成型し、銅張り積層板とした。こ
の積層板からエッチングにより銅箔を除去し、試験片と
した。EXAMPLE A 0.5% by weight aqueous solution of N-β- (aminoethyl) -γ-aminopropyltrimethoxysilane hydrochloride was prepared, and 0.2% by weight of ammonium chloride and acetic acid were added thereto to adjust the pH to 4 It was set to 0.0. (Treatment liquid) A glass cloth WEA18W105 (manufactured by Nitto Boseki Co., Ltd.) is dipped in this treatment liquid, and then squeezed with a mangle so that the treatment liquid retention rate is about 30% with respect to the glass cloth. Dried. Next, a resin varnish was prepared according to the NEMA standard FR-4 formulation. Epicoat 5046-B-8 [made by Yuka Shell Epoxy Co., Ltd.] 100 parts Epicoat 154 [made by Yuka Shell Epoxy Co., Ltd.] 20 parts Dicyandiamide 4 parts 2-Ethyl-4-methylimidazole 0.2 Part Methyl ethyl ketone ... 15 parts This prepared varnish was impregnated with glass cloth and dried at 130 ° C. for 7 minutes to obtain a prepreg. Eight pieces of this prepreg were stacked, copper foils were stacked on top and bottom, and heat-molded at a pressure of 30 kg / cm 2 at 170 ° C. for 90 minutes to obtain a copper-clad laminate. The copper foil was removed from this laminated plate by etching to obtain a test piece.
【0007】[比較例]実施例の処理液組成から塩化ア
ンモニゥムを除いた以外は実施例と同様にし、比較例の
試験片とした。実施例と比較例で得られた積層板試験片
について、ボイドの有無を目視により判定し表1に示し
た。又実施例、比較例のエポキシプリプレグについてゲ
ル化時間を測定し、それぞれのプリプレグの硬化速度の
目安として示した。Comparative Example A test piece of Comparative Example was prepared in the same manner as in Example except that ammonium chloride was omitted from the composition of the treatment liquid of Example. For the laminated plate test pieces obtained in Examples and Comparative Examples, the presence or absence of voids was visually determined and shown in Table 1. Further, the gelling time was measured for the epoxy prepregs of Examples and Comparative Examples and shown as a guide for the curing rate of each prepreg.
【0008】[0008]
【表1】 脱泡性は〇は良好、△はやや不良 ゲル化時間は160℃で測定[Table 1] Defoaming is good for ◯ and somewhat bad for △ Gel time measured at 160 ℃
【0009】[0009]
【発明の効果】本発明により、シランカツプリング剤の
種類に限定されること無く、エポキシプリプレグにした
場合、脱泡性の良いガラスクロスを得ることができる。According to the present invention, a glass cloth having a good defoaming property can be obtained when the epoxy prepreg is used without being limited to the kind of the silane coupling agent.
Claims (1)
ムで処理されていることを特徴とするガラス−エポキシ
プリント配線基板用ガラスクロス。1. A glass cloth for a glass-epoxy printed wiring board, which is treated with a silane coupling agent and ammonium chloride.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4277690A JPH06112608A (en) | 1992-09-24 | 1992-09-24 | Glass cloth for glass-epoxy printed wiring board |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4277690A JPH06112608A (en) | 1992-09-24 | 1992-09-24 | Glass cloth for glass-epoxy printed wiring board |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH06112608A true JPH06112608A (en) | 1994-04-22 |
Family
ID=17586950
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4277690A Pending JPH06112608A (en) | 1992-09-24 | 1992-09-24 | Glass cloth for glass-epoxy printed wiring board |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH06112608A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI764258B (en) * | 2019-12-26 | 2022-05-11 | 日商日東紡績股份有限公司 | Surface treated glass cloth |
-
1992
- 1992-09-24 JP JP4277690A patent/JPH06112608A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI764258B (en) * | 2019-12-26 | 2022-05-11 | 日商日東紡績股份有限公司 | Surface treated glass cloth |
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