JP2563826C

JP2563826C -

Info

Publication number: JP2563826C
Authority: JP
Original assignee: Asahi Fiber Glass Co Ltd
Current assignee: Asahi Fiber Glass Co Ltd
Publication date: 1998-09-24

Description

【発明の詳細な説明】［産業上の利用分野」帯電防止性ガラス繊維束、帯電防止性ロービング、樹脂補強用繊維体並びにシ
ートモールディングコンパウンドの製造法に関する。［従来の技術］ブッシングから引出したガラス繊維に集束剤を附与して所定本数集束して巻取
り、加熱乾燥することにより製造されたガラス繊維束（ストランド）は繊維補強樹脂体（ＦＲＰ）を製造する際の樹脂補強用繊維体として広く用いられる。又上記のストランドは引揃えてロービングとなし、或はそのまま、又は引揃え
た状態で切断してチョップドストランド（ＣＳ）となし、或はストランド又はＣ
Ｓを移動するコンベア上に堆積せしめてＣＳＭ（コンティニュアスストランドマ
ット）又はＣＭ（チョップドストランドマット）とした状態で補強繊維体として
使用される。又ＣＳを移動するコンベア上に堆積せしめてなるマット状物にＭｇＯのような
増粘剤を含む不飽和ポリエステル樹脂のような熱硬化性樹脂を含浸させ、次いで
養生して樹脂粘度を上昇させてＳＭＣ（シートモールディングコンパウンド）と
なし、ＦＲＰの製造に使用される。このようなガラス繊維束に切断等の加工を施す際、静電気が発生し、各種トラ
ブルを生ずることがあるので、これを防止する為集束剤に帯電防止剤を含有させ
る。帯電防止剤としてはノニオン系、カチオン系、両性イオン系、アニオン系、或
は無機塩類が知られている。［発明が解決しようとする課題］従来技術は次のような問題点（解決すべき課題）を有する。（１）充分な帯電防止効果を得るためには多量の帯電防止剤を使用する必要があ
る。（２）多量の帯電防止剤を使用するとストランドを加熱乾燥する際ストランドが
着色し易い。（３）集束剤中に含まれる被膜形成剤、カップリング剤、潤滑剤等と帯電防止剤
とが反応し、ストランドの性能が低下し易い。例えばフィラメントの剛性が低下
し、或は集束性が悪化し、ストランドがモノフィラメント状になり、このストラ
ンドを補強用繊維体として使用する際、樹脂の含浸性が不良となる。特にＳＭＣを製造する場合、補強繊維体に含浸させる樹脂は増粘されているた
め樹脂の含浸不良が生じ易い。（４）集束剤と帯電防止剤の反応による性能の低下は両者の組合せ如何によって
変化する。このため帯電防止剤による性能低下を少なくしようとすると、使用する集束剤と帯電防止剤の種類が制限されてしまう。本発明者は上記課題を解決する為検討を重ね、帯電防止剤を含まない集束剤を
附与集束し、次いで好ましくは乾燥してなるガラス繊維束の表面に帯電防止剤又
は帯電防止剤及び潤滑剤が被着せしめられている帯電防止性ガラス繊維束、又は
この繊維束を引揃えたロービングをＦＲＰ補強繊維として使用し、或は上記帯電
防止性ガラス繊維束を用いてシートモールディングコンパウンド（ＳＭＣ）を製
造することにより好適な結果の得られることを見出し、特許出願を行なった。本発明は、上記ガラス繊維束を補強繊維として使用して得られるＦＲＰ、又は
ＳＭＣを使用して得られるＦＲＰの耐水性を向上させる為、研究を重ねた結果に
基づく新たな提案である。［課題を解決するための手段］上記目的を達成する為、本発明においては、帯電防止剤を溶液重量に対する固
形分量として０．０５〜２wt％含む集束剤を附与集束し、次いで乾燥してなるガ
ラス繊維束の表面に帯電防止剤又は帯電防止剤及び潤滑剤が被着せしめられ、30
〜100 ℃で再度乾燥されている帯電防止性ガラス繊維束、又はこの繊維束を引揃
えたロービングをＦＲＰ補強繊維として使用する。又本発明においては、ブッシングから引出したガラス繊維に帯電防止剤を溶液
重量に対する固形分量として０．０５〜２wt％含む集束剤を附与し、次いで乾燥
したガラス繊維束表面に帯電防止剤又は帯電防止剤及び潤滑剤を被着せしめ、30
〜100 ℃で再度乾燥することにより樹脂補強用繊維体を製造する。更に又本発明においては、ブッシングから引出したガラス繊維に帯電防止剤を
溶液重量に対する固形分量として０．０５〜２wt％含む集束剤を附与集束し、次
いで乾燥してなるガラス繊維束又はその引揃え物に帯電防止剤又は帯電防止剤及
び潤滑剤とを含む後処理液を塗布し、次いで30〜100 ℃で再度乾燥したガラス繊
維又はその引揃え物を切断し、移動するコンベア上に堆積せしめてマット状物と
なし、該マット状物に増粘剤を含む液状の熱硬化性樹脂を含浸させた後、養生す
ることによりＳＭＣを製造する。次に本発明を更に具体的に説明する。ブッシングから引出した直径３〜２５μ、好ましくは９〜１６μのガラス繊維に集束剤を塗布し、３０〜５，０００本、好ましくは５０〜１，０００本程度集
束し、ストランドとする。集束剤としては溶液重量に対する固形分量として０．０５〜２wt％程度の帯電
防止剤、１〜１５ｗｔ％程度の被膜形成剤、０．０１〜２ｗｔ％程度の潤滑剤、
０．０１〜５ｗｔ％程度のカップリング剤を含むものが好適に使用できる。被膜形成剤としてはポリ酢酸ビニール等を、潤滑剤としてはノニオン系或はカ
チオン系界面活性剤又は油剤等を、カップリング剤としてはシランカップリング
剤等を用いるのが適当である。ガラス繊維に対する集束剤の附与量は、固型分として０．３〜３ｗｔ％好まし
くは０．５〜２ｗｔ％とするのが適当である。このように集束剤中に微量の帯電防止剤を含有せしめることにより、前述した
先願の効果を損なうことなく、しかも上記のストランドを補強繊維として使用し
て得られるＦＲＰ、或は上記ＳＭＣを使用して得られるＦＲＰの耐水性を向上せ
しめうることが見出された。上述のストランドに帯電防止剤を被着せしめる。被着の手段に特に限定はなく、帯電防止剤を含む後処理液をストランドに噴霧
し、或はロールコーターを用いて塗布しても良く、或は又ストランドをテンショ
ンバーの下面に接して張力を与えつつ移動せしめながら、テンションバーの上面
に本溶液を所定割合で、好ましくは定量ポンプを用いて供給し、後処理溶液をテ
ンションバーの下面に流下せしめストランドに後処理液を接触せしめて塗布する
ことによってストランドに帯電防止剤を被着させることもできる。後処理液の塗布によって被着せしめる帯電防止剤の量は、ガラス繊維に対し０
．０１〜１ｗｔ％程度で充分効果をうることができる。本発明においては、集束剤中に混入する帯電防止剤の量は微量であるので、集
束剤との関連において使用しうる帯電防止剤の種類が制限をうけることはなくア
ニオン系、ノニオン系、カチオン系、両性イオン系、無機塩類等各種のものが使
用できる。又本発明においては後処理液中に潤滑剤を１〜３０ｗｔ％、好ましくは５〜１
５ｗｔ％程度含有させておくこともでき、ストランドの潤滑住を一層向上させることができる。なお、潤滑剤としてはノニオン系或はカチオン系界面活性剤又は油剤が好適に
使用できる。ストランドに対する本溶液の附与は、ストランド水中の水分が０．１ｗｔ％以
下の状態で行うのが好ましく、本発明の効果を一層向上させることができる。水
分を減少させる工業的手段としては加熱炉を用いた加熱乾燥、減圧乾燥を行うの
が好適である。なおストランドに対する後処理液の附与は個々のストランドに対し別々に行う
こともできるが、多数のストランドを引揃えてロービングとなす際、多数のスト
ランドに同時に附与するのが実際的である。後処理液を附与したストランド、或はロービングは、３０〜１００℃、好まし
くは５０〜８０℃において加熱乾燥するのが適当であり、リボナイゼーションを
向上させる効果を得ることができる。上述の本発明ストランド或はロービングはそのまま、或は切断し、又は連続し
た状態でマット状物とし、或は製織して布状物となしてＦＲＰの補強用に好適に
用いることができる。又本発明のストランド或はロービングの切断物（ＣＳ）を用いてＳＭＣを製造
することもできる。［作用］帯電防止剤の大部分をストランドの表面にのみ被着させることにより所望の帯
電防止効果をうるのに必要な帯電防止剤の使用量を減少させる。又帯電防止剤を溶液重量に対する固形分量として０．０５〜２wt％含む集束剤
を附与してガラス繊維を集束してストランドとなし、次いでこのストランド表面
に帯電防止剤を被着させることにより、集束剤成分と帯電防止剤の反応を防止し
、ストランドの性能を向上させ、着色を防止し、更に又このストランドを使用し
て得られるＦＲＰ、又はこのストランドを使用して得られるＳＭＣの耐水性を向
上させる。このようなストランドをＦＲＰ補強用として用いることにより樹脂の含浸性を
良好ならしめる。この効果はＳＭＣ製造の場合特に著しい。帯電防止剤の被着をストランド乾燥後に行うことにより、上記効果を一層向上
させる。又帯電防止剤と共に潤滑剤を附与することによりストランドの潤滑性を一層向
上させる。更に又帯電防止剤附与後ストランドを加熱乾燥することによりリボナイゼーシ
ョンを向上させる。［実施例１］被膜形成剤としてポリ酢酸ビニールを８ｗｔ％、潤滑剤としてノニオン系界面活
性剤を０．５ｗｔ％、カップリング剤としてシランカップリング剤を０．２ｗｔ
％含むサイジング剤をガラス繊維に対し固型分として１．５ｗｔ％附与し、１４
０℃に１２ｈｒ加熱乾燥してストランドＩとした。このストランドに帯電防止剤として記帯電防止剤をストランドＩの表面に被着させ、ストランドIIを得た。帯電防止剤の被着量はガラス繊維の０．０５ｗｔ％であった。上記ストランドＩ、IIを用い、スタティックフォトメーターを使用し、印加電
圧８ＫＶ、温度２５℃、湿度５０％の条件で帯電圧、半減期を測定した結果を別
表に示す。ストランドIIは集束性、切断時の分散不良を生ずることなく、液状熱硬化性樹
脂の含浸性も良好であり、着色を生ずることもなかった。［実施例２］ランドIII）について同様な測定を行った結果を別表に示す。なお、ストランドIII の集束性其他の性質はストランドIIと同等であった。［比較例１］実施例１で得られた集束剤中に被着量が実施例１と同一となるよう定めた）実施例１と同様にして得られたスト
ランドIVについて同様な測定を行った結果を別表に示す。なお、このストランドIVは分散性、樹脂の含浸性がストランドＩ、IIに比して
不良であり、このストランドを用いて製造したＦＲＰ中に約５％の不良品が発生
した。又このストランドIVは黄色に着色した。［実施例３］実施例１、２のストランドII、III を２．５ｃｍの長さに切断し、この切断物
を７５０ｇｒ／ｍ²の割合で堆積させたＣＳに、次の組成を有する樹脂組成物を
含浸させ、ガラス含有量２５ｗｔ％のＳＭＣを製造した。不飽和ポリエステル樹脂７０重量部低収縮剤３０重量部炭酸カルシウム１５０重量部ＴＢＰＢ０．０２重量部ステアリン酸亜鉛０．０５重量部ＭｇＯ０．０１重量部樹脂の含浸性は良好であり、含浸不良に起因する不良品が発生することはなか
った。［比較例２］比較例１のストランドIVを用いて、実施例３と同様なＳＭＣを製造した。樹脂の含浸性は不良で、不良品発生率は５％であった。［実施例４］実施例３のＳＭＣを用いて製造したＦＲＰを１００℃の水中に８日間放置した
場合、成形品表面のふくれが生じなかった。［比較例３］実施例４のストランドII、III に代え、被膜形成剤、潤滑剤、カップリング剤の種類及び含有量はストランドII、III の製造に用いられた集束剤と同一である
が、帯電防止剤を全く含まない集束剤を使用して得られたストランドを用い、実
施例４と同様に試験を行った場合著しいふくれが生じた。［発明の効果］所定の性能を得るのに必要な帯電防止剤の使用量を減少し、帯電防止効果を高
める。ストランドの集束性の低下、着色を防止し、樹脂の含浸性を高め、均質なＦＲ
Ｐ、ＳＭＣをうる。又ＦＲＰの耐水性を向上させる。帯電防止剤と集束剤の組合せ可能な範囲を拡大する。The present invention relates to a method for producing an antistatic glass fiber bundle, an antistatic roving, a resin reinforcing fiber body, and a sheet molding compound. [Prior Art] A glass fiber bundle (strand) manufactured by applying a sizing agent to glass fibers drawn from a bushing, winding the glass fibers in a predetermined number, winding and heating and drying the glass fibers, is a fiber reinforced resin body (FRP). It is widely used as a fiber body for resin reinforcement during production. In addition, the above-mentioned strands are aligned and robbed, or cut as they are or in an aligned state to form chopped strands (CS), or strands or C
S is deposited on a moving conveyor to be used as a reinforcing fiber body in a state of CSM (continuous strand mat) or CM (chopped strand mat). In addition, a mat-like material obtained by depositing CS on a moving conveyor is impregnated with a thermosetting resin such as an unsaturated polyester resin containing a thickener such as MgO, and then cured to increase the resin viscosity. SMC (Sheet Molding Compound) and used for manufacturing FRP. When processing such a glass fiber bundle as cutting or the like, static electricity is generated and various troubles may occur. To prevent this, an antistatic agent is added to the sizing agent. Nonionic, cationic, zwitterionic, anionic or inorganic salts are known as antistatic agents. [Problems to be Solved by the Invention] The conventional technology has the following problems (problems to be solved). (1) In order to obtain a sufficient antistatic effect, it is necessary to use a large amount of an antistatic agent. (2) If a large amount of antistatic agent is used, the strand is likely to be colored when the strand is heated and dried. (3) The film forming agent, the coupling agent, the lubricant and the like contained in the sizing agent react with the antistatic agent, and the performance of the strand is apt to deteriorate. For example, the rigidity of the filament decreases or the convergence deteriorates, the strand becomes monofilament, and when this strand is used as a reinforcing fiber, the impregnating property of the resin becomes poor. Particularly in the case of manufacturing SMC, the resin impregnated in the reinforcing fiber body is thickened, so that impregnation failure of the resin is likely to occur. (4) Performance degradation due to the reaction between the sizing agent and the antistatic agent varies depending on the combination of the two. For this reason, if an attempt is made to reduce the performance deterioration due to the antistatic agent, the types of the sizing agent and the antistatic agent used are limited. The present inventor has been studying in order to solve the above-mentioned problems, and has added and bound a sizing agent containing no antistatic agent, and then preferably dried the antistatic agent or the antistatic agent and the lubricating agent on the surface of the glass fiber bundle. An antistatic glass fiber bundle to which an agent is applied, or a roving prepared by aligning the fiber bundle, is used as an FRP reinforcing fiber, or a sheet molding compound (SMC) using the antistatic glass fiber bundle And found that a suitable result can be obtained by producing the same, and filed a patent application. The present invention is a new proposal based on the results of repeated studies to improve the water resistance of FRP obtained by using the above glass fiber bundle as a reinforcing fiber or FRP obtained by using SMC. [Means for Solving the Problems] In order to achieve the above object, in the present invention, an antistatic agent is added to the solution weight.
Given whenever focusing the sizing agent containing 0.05～2Wt% as a form content, then the antistatic agent or antistatic agents and lubricants on the surface of the glass fiber bundles obtained by Drying is made to deposit in, 30
An antistatic glass fiber bundle that has been dried again at 100100 ° C. or a roving in which the fiber bundle has been aligned is used as the FRP reinforcing fiber. In the present invention also, the solution antistatic agent to the glass fibers drawn from a bushing
Given whenever sizing agent containing 0.05～2Wt% as solid content relative to the weight, then by antistatic agent or antistatic agent to the glass fiber bundle surface and Drying and lubricants allowed adherend, 30
By drying again at 100100 ° C., a fibrous body for resin reinforcement is produced. Furthermore, in the present invention, an antistatic agent is added to the glass fiber drawn from the bushing.
The sizing agent containing 0.05～2Wt% focused given whenever solid basis for the solution weight, and then post-process including the anti-static to a dry glass fiber bundles or引揃example those comprising agents or antistatic agents and lubricants A liquid is applied, and then the glass fiber or its aligned material dried again at 30 to 100 ° C. is cut, deposited on a moving conveyor to form a mat, and the liquid containing a thickener is added to the mat. After impregnating with a thermosetting resin, the cured product is cured to produce an SMC. Next, the present invention will be described more specifically. A sizing agent is applied to glass fibers having a diameter of 3 to 25 µ, preferably 9 to 16 µ drawn out from the bushing, and bundled into strands of about 30 to 5,000, preferably about 50 to 1,000, to form strands. As a sizing agent, an antistatic agent having a solid content of about 0.05 to 2 wt %, a film forming agent of about 1 to 15 wt%, a lubricant of about 0.01 to 2 wt%, based on the weight of the solution ,
Those containing about 0.01 to 5% by weight of a coupling agent can be suitably used. It is suitable to use polyvinyl acetate or the like as a film forming agent, a nonionic or cationic surfactant or an oil agent as a lubricant, and a silane coupling agent as a coupling agent. The amount of the sizing agent to be added to the glass fiber is suitably from 0.3 to 3% by weight, preferably from 0.5 to 2% by weight as a solid component. By adding a small amount of antistatic agent to the sizing agent in this way, the FRP obtained by using the above strand as a reinforcing fiber or the above SMC can be used without impairing the effects of the above-mentioned prior application. It has been found that the water resistance of FRP obtained by the above method can be improved. An antistatic agent is applied to the above-mentioned strand. There is no particular limitation on the means of application, and a post-treatment liquid containing an antistatic agent may be sprayed on the strand, or may be applied using a roll coater, or the strand may be brought into contact with the lower surface of the tension bar to apply a tension. The solution is supplied to the upper surface of the tension bar at a predetermined ratio, preferably by using a metering pump, and the post-treatment solution is allowed to flow down to the lower surface of the tension bar, and the post-treatment solution is brought into contact with the strand and applied. By doing so, an antistatic agent can be applied to the strand. The amount of the antistatic agent applied by application of the post-treatment liquid is 0 to glass fiber.
. A sufficient effect can be obtained at about 01 to 1 wt%. In the present invention, since the amount of the antistatic agent mixed into the sizing agent is very small, the type of the antistatic agent that can be used in connection with the sizing agent is not limited, and the anion type, the nonionic type, and the cationic type are not limited. systems, amphoteric, those inorganic salts such as various can you can use. In the present invention, the post-treatment liquid contains 1 to 30% by weight of a lubricant, preferably 5 to 1% by weight.
About 5 wt% can be contained, so that the lubrication of the strand can be further improved. As the lubricant, a nonionic or cationic surfactant or an oil agent can be suitably used. The application of the present solution to the strand is preferably performed in a state where the water content in the strand water is 0.1% by weight or less, and the effect of the present invention can be further improved. As an industrial means for reducing the water content, it is preferable to carry out heating drying using a heating furnace and drying under reduced pressure. The application of the post-treatment liquid to the strands can be performed separately for individual strands. However, when many strands are aligned and roving is performed, it is practical to simultaneously apply them to many strands. Strand given whenever rinse solution, or rovings, 30 to 100 ° C., preferably appropriate to heat dried at 50 to 80 ° C., it is possible to obtain an effect of improving the Ribonaize Activation. The above-mentioned strand or roving of the present invention can be suitably used as it is, cut, or formed into a mat-like material in a continuous state, or woven into a cloth-like material to reinforce the FRP. The SMC can also be manufactured using the cut material (CS) of the strand or roving of the present invention. [Operation] By applying most of the antistatic agent only to the surface of the strand, the amount of the antistatic agent required to obtain the desired antistatic effect is reduced. Also, a sizing agent containing 0.05 to 2% by weight of the antistatic agent as a solid content based on the weight of the solution is added to the glass fiber to form a strand, and then the antistatic agent is applied to the surface of the strand. Prevents the reaction between the sizing agent component and the antistatic agent, improves the performance of the strand, prevents coloring, and furthermore, the water resistance of the FRP obtained using this strand or the SMC obtained using this strand. Improve. By using such a strand for reinforcing the FRP, the impregnation property of the resin is improved. This effect is particularly remarkable in the case of SMC production. By applying the antistatic agent after the strand is dried, the above effect is further improved. By adding a lubricant together with an antistatic agent, the lubricity of the strand is further improved. Further, the strands are heated and dried after the application of the antistatic agent to improve ribonation. [Example 1] 8 wt% of polyvinyl acetate as a film forming agent, 0.5 wt% of a nonionic surfactant as a lubricant, and 0.2 wt% of a silane coupling agent as a coupling agent
% Of a sizing agent containing 1.5% by weight as a solid component to glass fiber,
The strand I was dried by heating at 0 ° C. for 12 hours. As an antistatic agent for this strand The antistatic agent was applied to the surface of strand I to obtain strand II. The amount of the applied antistatic agent was 0.05% by weight of the glass fiber. Using the above-mentioned strands I and II, using a static photometer, the charging voltage and the half-life were measured under the conditions of an applied voltage of 8 KV, a temperature of 25 ° C., and a humidity of 50%. Strand II had good sizing properties, no poor dispersion at the time of cutting, good impregnation with the liquid thermosetting resin, and no coloring. [Example 2] The results of the same measurement for land III) are shown in the attached table. The convergence and other properties of the strand III were equivalent to those of the strand II. Comparative Example 1 In the sizing agent obtained in Example 1, The same measurement was performed on the strand IV obtained in the same manner as in Example 1 (the amount of deposition was determined to be the same as that in Example 1). The strand IV was poor in dispersibility and resin impregnating property as compared with the strands I and II, and about 5% of defective products were produced in the FRP manufactured using the strands. This strand IV was colored yellow. Example 3 The strands II and III of Examples 1 and 2 were cut to a length of 2.5 cm, and the cut material was deposited on CS deposited at a rate of 750 gr / m ² to have a resin composition having the following composition: An SMC having a glass content of 25 wt% was produced. Unsaturated polyester resin 70 parts by weight Low shrinkage agent 30 parts by weight Calcium carbonate 150 parts by weight TBPB 0.02 parts by weight Zinc stearate 0.05 parts by weight MgO 0.01 parts by weight No defective products were generated. Comparative Example 2 An SMC similar to that of Example 3 was manufactured using the strand IV of Comparative Example 1. The impregnating property of the resin was poor, and the occurrence rate of defective products was 5%. Example 4 When the FRP produced using the SMC of Example 3 was left in water at 100 ° C. for 8 days, no blistering occurred on the surface of the molded product. [Comparative Example 3] Instead of the strands II and III of Example 4, the types and contents of the film forming agent, the lubricant, and the coupling agent were the same as those of the sizing agent used in the production of the strands II and III. When a test was carried out in the same manner as in Example 4 using a strand obtained by using a sizing agent containing no antistatic agent, significant blistering occurred. [Effects of the Invention] The amount of the antistatic agent required to obtain a predetermined performance is reduced, and the antistatic effect is enhanced. Prevents reduction of strand convergence and coloring, enhances resin impregnation, homogenous FR
P, SMC. It also improves the water resistance of FRP. The range in which antistatic agents and sizing agents can be combined is expanded.

Claims

Claims: (1) A sizing agent containing 0.05 to 2% by weight of an antistatic agent as a solid content based on the weight of a solution is added and bunched, and then the surface of the glass fiber bundle obtained by drying is coated with the antistatic agent. An antistatic glass fiber bundle which has been dressed and dried again at 30 to 100 ° C. (2) an antistatic agent sizing agent containing 0.05～2Wt% solid basis for the solution weight was focused given whenever then antistatic agents and lubricants on the surface of the glass fiber bundles obtained by drying allowed deposited And an antistatic glass fiber bundle which has been dried again at 30 to 100 ° C. (3) The antistatic glass fiber bundle according to (1) or (2), wherein the antistatic agent is an inorganic salt or a cationic, nonionic, anionic or amphoteric surfactant. (4) The amount of the antistatic agent applied to the surface of the glass fiber bundle is 0.0
4. The antistatic glass fiber bundle according to claim 1, wherein the amount is 1 to 1 wt%. (5) The antistatic glass fiber bundle according to any one of claims 1, 2, 3 and 4, wherein the sizing agent contains a film forming agent, a coupling agent, or a lubricant. (6) The antistatic glass fiber bundle according to any one of claims 1, 2, 3, 4, and 5, wherein the amount of the sizing agent is 0.3 to 3 wt% of the glass fiber. (7) The antistatic glass fiber bundle according to (1), (2), (3), (4), (5) or (6), wherein the lubricant is a nonionic or cationic surfactant or an oil agent. (8) The amount of the lubricant applied to the surface of the glass fiber bundle is 0.01 to
The antistatic glass fiber bundle according to claim 1, wherein the amount is 1 wt%. (9) An antistatic roving comprising the aligned product of the antistatic glass fiber bundle according to claim 1, 2, 3, 4, 5, 6, 7 or 8. (10) An antistatic agent is added to the glass fiber drawn out of the bushing based on the weight of the solution.
Given whenever sizing agent containing 0.05～2Wt% as a form content, then is dry, the glass fiber bundles surface an antistatic agent allowed to be dressed, resin, characterized by drying again at 30 to 100 ° C. A method for producing a reinforcing fibrous body. (11) An antistatic agent is added to the glass fiber drawn out of the bushing based on the weight of the solution.
An antistatic agent is applied by applying a post-treatment liquid containing an antistatic agent to a glass fiber bundle or a lined product obtained by applying and bundling a sizing agent containing 0.05 to 2% by weight as a form amount. And then drying again at 30 to 100 ° C. (12) The method for producing a fiber body for resin reinforcement according to (10) or (11), wherein drying before applying the post-treatment liquid is performed under heating or under reduced pressure. (13) The production of a fibrous body for resin reinforcement according to claim 10, 11, or 12, wherein the antistatic agent is an inorganic salt or a cationic, nonionic, anionic or amphoteric surfactant. Law. (14) The amount of the antistatic agent applied to the surface of the glass fiber bundle is 0.1% of the glass fiber.
The method for producing a resin-reinforcing fibrous body according to claim 11, 12 or 13, wherein the content is from 01 to 1 wt%. (15) The method for producing a fibrous body for resin reinforcement according to any one of claims 11, 12, 13 and 14, wherein the sizing agent comprises a film forming agent, a coupling agent, or a lubricant. (16) The method according to any one of claims 11, 12, 13, 14 and 15, wherein the amount of the sizing agent is 0.3 to 3 wt% of the glass fiber. (17) The post-treatment liquid also contains a lubricant.
17. The method for producing a fibrous body for resin reinforcement according to 14, 15, or 16. (18) The method according to claim 17, wherein the lubricant is a nonionic or cationic surfactant or an oil agent. (19) An antistatic agent is added to the glass fiber drawn out of the bushing based on the weight of the solution.
A post-treatment liquid containing an antistatic agent or an antistatic agent and a lubricant is applied to a bundle of glass fibers or a lined product obtained by applying and bundling a sizing agent containing 0.05 to 2% by weight as a form amount , Next, the glass fiber or its aligned material dried again at 30 to 100 ° C. is cut and deposited on a moving conveyor to form a mat-like material, and the mat-like material is a liquid thermosetting resin containing a thickener. And then curing the sheet molding compound. (20) The method for producing a sheet molding compound according to claim 19, wherein the antistatic agent is an inorganic salt or a cationic, nonionic, anionic or amphoteric surfactant. (21) The amount of the antistatic agent applied to the surface of the glass fiber bundle by applying the post-treatment liquid is 0.01 to 1 wt% of the glass fiber.
0. The method for producing a sheet molding compound according to item 0. (22) The method for producing a sheet molding compound according to claim 19 , wherein the sizing agent comprises a film forming agent, a coupling agent, or a lubricant. (23) The method for producing a sheet molding compound according to any one of claims 19 , 20, 21 and 22, wherein the amount of the sizing agent is 0.3 to 3 wt% of the glass fiber. (24) The method for producing a sheet molding compound according to any one of claims 19, 20, 21, 22, and 23, wherein the lubricant is a nonionic or cationic surfactant or an oil agent. (25) The amount of the lubricant applied to the surface of the glass fiber bundle by applying the post-treatment liquid is 0.01 to 1 wt% of the glass fiber.
25. The method for producing a sheet molding compound according to 1, 22, 23 or 24.