JPH07315888A - Glass fiber - Google Patents

Glass fiber

Info

Publication number
JPH07315888A
JPH07315888A JP7024766A JP2476695A JPH07315888A JP H07315888 A JPH07315888 A JP H07315888A JP 7024766 A JP7024766 A JP 7024766A JP 2476695 A JP2476695 A JP 2476695A JP H07315888 A JPH07315888 A JP H07315888A
Authority
JP
Japan
Prior art keywords
glass fiber
weight
epoxy resin
glass
sizing agent
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.)
Granted
Application number
JP7024766A
Other languages
Japanese (ja)
Other versions
JP2768291B2 (en
Inventor
Masayuki Arioka
雅行 有岡
Masaru Tachiiri
勝 立入
Hiroki Mochizuki
浩樹 望月
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Electric Glass Co Ltd
Original Assignee
Nippon Electric Glass Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Electric Glass Co Ltd filed Critical Nippon Electric Glass Co Ltd
Priority to JP7024766A priority Critical patent/JP2768291B2/en
Priority to KR1019950031168A priority patent/KR100404695B1/en
Publication of JPH07315888A publication Critical patent/JPH07315888A/en
Application granted granted Critical
Publication of JP2768291B2 publication Critical patent/JP2768291B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10Coating
    • C03C25/24Coatings containing organic materials
    • C03C25/26Macromolecular compounds or prepolymers
    • C03C25/32Macromolecular compounds or prepolymers obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
    • C03C25/36Epoxy resins

Abstract

PURPOSE:To produce a glass fiber excellent in chemical resistance such as alkaline resistance and acid resistance and exhibiting an excellent dispersibility in a wet type process for making a non-woven fabric in spite of its low-cost raw material composed of E glass fiber. CONSTITUTION:This glass fiber is coated with a fiber size containing an epoxy resin, a curing agent for the epoxy resin, an epoxy silane-containing silane coupling agent and a nonionic surfactant such as an ethylene oxide addition product of bisphenol A or a polyethylene glycol fatty acid ester.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、ガラス繊維に関し、よ
り具体的には、所定長に切断した後、湿式不織布抄造法
によって不織布を製造するのに適したガラス繊維に関す
るものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass fiber, and more specifically to a glass fiber suitable for producing a nonwoven fabric by a wet nonwoven fabric forming method after being cut into a predetermined length.

【0002】[0002]

【従来の技術】ガラス繊維は、溶融したガラスを白金製
ブッシングの底部に設けられた多数のノズルから引き出
した後、直ちにアプリケータと呼ばれる塗布器を介して
集束剤を塗布し、次いでその多数本を結束して巻き取る
ことによって製造する。
2. Description of the Related Art Glass fibers are obtained by drawing molten glass from a large number of nozzles provided at the bottom of a platinum bushing, immediately applying a sizing agent through an applicator called an applicator, and then applying the sizing agent. It is manufactured by binding and winding.

【0003】またガラス繊維不織布は、上記のガラス繊
維束を所定の長さに切断し、ガラスチョップドストラン
ドとした後、乾式不織布抄造法あるいは湿式不織布抄造
法によって作製される。
A glass fiber nonwoven fabric is produced by cutting the above-mentioned glass fiber bundle into a predetermined length to form glass chopped strands, and then by a dry nonwoven fabric papermaking method or a wet nonwoven fabric papermaking method.

【0004】湿式不織布抄造法は、ガラスチョップドス
トランドを水系分散液中に分散し、抄造する方法である
が、この方法によって均一な厚みを有するガラス繊維不
織布を得るためには、抄造時にガラスチョップドストラ
ンドが、水系分散液中でガラス単繊維(モノフィラメン
ト)に近い状態で均一に分散することが必要である。
The wet non-woven fabric making method is a method of dispersing glass chopped strands in an aqueous dispersion to make a paper. To obtain a glass fiber non-woven fabric having a uniform thickness by this method, the glass chopped strands are made at the time of making a paper. However, it is necessary to disperse it uniformly in the aqueous dispersion liquid in a state close to glass single fibers (monofilaments).

【0005】ところでガラス繊維の集束剤には、本来、
紡糸、加工工程におけるガラス繊維の損傷を少なくする
こと、加工及び使用時の作業性を良くすること、ガラス
繊維と樹脂との接着性を良くすることが要求されるが、
湿式不織布抄造法に使用されるガラス繊維には、これ以
外にも、抄造時にガラスチョップドストランドの結束を
解いてモノフィラメント状に分散させることや、分散し
たガラス繊維が凝集しないようにすることも要求され、
従来よりこの種の集束剤としては、澱粉、アクリルアマ
イド・酢酸ビニル共重合体、カルボキシメチルセルロー
ス、ポリビニルアルコール、ポリエチレンオキサイド等
の水溶性高分子と、カチオン系脂肪酸アミド等の潤滑剤
からなる集束剤が使用されている。
By the way, the glass fiber sizing agent originally has
Although it is required to reduce damage to the glass fiber in the spinning and processing steps, improve workability during processing and use, and improve adhesiveness between the glass fiber and the resin,
In addition to this, the glass fibers used in the wet non-woven papermaking method are also required to untie the glass chopped strands during paper making and disperse them into a monofilament, or to prevent the dispersed glass fibers from aggregating. ,
Conventionally, as a sizing agent of this type, a sizing agent composed of a water-soluble polymer such as starch, an acrylic amide / vinyl acetate copolymer, carboxymethyl cellulose, polyvinyl alcohol, or polyethylene oxide, and a lubricant such as a cationic fatty acid amide is used. It is used.

【0006】[0006]

【発明が解決しようとする課題】ガラス繊維不織布は、
各種用途に使用されているが、その一つとして床材の基
材がある。この床材は、ガラス繊維不織布を塩化ビニル
樹脂に含浸させてシート状に成形したものである。
The glass fiber non-woven fabric is
It is used for various purposes, one of which is a base material for flooring. This flooring material is formed by impregnating a glass fiber non-woven fabric with vinyl chloride resin to form a sheet.

【0007】またガラス繊維不織布の他の用途として板
材の基材がある。この板材は、ガラス繊維不織布をパラ
トルエンスルホン酸のような有機酸を硬化触媒として含
むフェノール樹脂に含浸させて熱硬化せしめ、板状に発
泡成形したものである。
Another application of the glass fiber non-woven fabric is a base material of a plate material. This plate material is obtained by impregnating a glass fiber non-woven fabric with a phenol resin containing an organic acid such as paratoluenesulfonic acid as a curing catalyst, heat-curing it, and foam-molding it into a plate shape.

【0008】通常、これらの用途のガラス繊維として
は、安価なEガラス繊維が使用されている。
Inexpensive E glass fibers are usually used as the glass fibers for these applications.

【0009】しかしながら上記の床材や板材は、アルカ
リ分および酸分によってガラス繊維が侵食されやすく、
寸法安定性が保持できなくなったり、高い強度の成形体
が得られ難いといった問題がある。
However, in the above floor materials and plate materials, the glass fibers are easily eroded by alkali and acid components,
There are problems that the dimensional stability cannot be maintained and it is difficult to obtain a high-strength molded product.

【0010】例えば上記の床材を建築物のコンクリート
床の上に貼り付けると、コンクリートから溶出するアル
カリ分によってガラス繊維不織布が侵食され、床材の寸
法安定性が損なわれることがある。さらに上記の板材の
場合、有機酸によってガラス繊維が侵食され、硬化特性
が損なわれやすく、その結果、成形後の強度が大幅に低
下することがある。
For example, when the above floor material is stuck on the concrete floor of a building, the glass fiber nonwoven fabric may be eroded by the alkali component eluted from the concrete, and the dimensional stability of the floor material may be impaired. Further, in the case of the above plate material, the glass fiber is eroded by the organic acid, and the curing characteristics are likely to be impaired, and as a result, the strength after molding may be significantly reduced.

【0011】アルカリ分や酸分によるガラス繊維不織布
の侵食は、Eガラス繊維に代えて耐アルカリ性と耐酸性
に優れたARガラス繊維やCガラス繊維等を使用するこ
とによって防止できるが、これらのガラス繊維では、ガ
ラス繊維不織布に要求される引き裂き強度等の基本特性
を満足できなくなったり、材料コストが高いため、コス
ト的に不利となる。
Corrosion of the glass fiber non-woven fabric due to alkali or acid can be prevented by using AR glass fiber or C glass fiber having excellent alkali resistance and acid resistance in place of E glass fiber. In the case of fiber, basic properties such as tear strength required for a glass fiber non-woven fabric cannot be satisfied, and the material cost is high, which is disadvantageous in terms of cost.

【0012】本発明は、上記事情に鑑みなされたもので
あり、安価なEガラス繊維を使用しながらも、耐アルカ
リ性や耐酸性といった耐薬品性に優れ、しかも湿式不織
布抄造時における分散性に優れたガラス繊維を提供する
ことを目的とする。
The present invention has been made in view of the above circumstances, and is excellent in chemical resistance such as alkali resistance and acid resistance while using inexpensive E glass fiber, and is also excellent in dispersibility at the time of wet type nonwoven fabric making. The purpose is to provide a glass fiber.

【0013】[0013]

【課題を解決するための手段】本発明者等は、上記目的
を達成すべく、種々の実験を重ねた結果、Eガラス繊維
の表面に耐薬品性の被膜を形成し、しかも湿式不織布抄
造時におけるガラスチョップドストランドの分散性を良
くすることを可能とする集束剤を見いだし、本発明を提
案するに至った。
Means for Solving the Problems The inventors of the present invention have conducted various experiments in order to achieve the above-mentioned object, and as a result, formed a chemically resistant coating on the surface of E glass fibers, In the present invention, a sizing agent capable of improving the dispersibility of the glass chopped strands was found, and the present invention was proposed.

【0014】すなわち本発明のガラス繊維は、エポキシ
樹脂、エポキシ樹脂の硬化剤、エポキシシランを含むシ
ランカップリング剤、ビスフェノールAのエチレンオキ
サイド付加物またはポリエチレングリコール脂肪酸エス
テルのノニオン系界面活性剤を含有する集束剤が塗布さ
れてなることを特徴とする。
That is, the glass fiber of the present invention contains an epoxy resin, a curing agent for the epoxy resin, a silane coupling agent containing epoxysilane, an ethylene oxide adduct of bisphenol A, or a nonionic surfactant of polyethylene glycol fatty acid ester. It is characterized in that a sizing agent is applied.

【0015】また本発明のガラス繊維は、集束剤が、固
形分表示で、エポキシ樹脂0.5〜5.0重量%、硬化
剤0.01〜5.0重量%、シランカップリング剤0.
05〜0.5重量%、ノニオン系界面活性剤0.5〜
5.0重量%を含有してなり、強熱減量が、0.1〜
1.0重量%となるように付着してなることを特徴とす
る。
In the glass fiber of the present invention, the sizing agent is 0.5 to 5.0% by weight of epoxy resin, 0.01 to 5.0% by weight of curing agent, and silane coupling agent of 0.
05-0.5% by weight, nonionic surfactant 0.5-
It contains 5.0% by weight, and the ignition loss is 0.1
It is characterized by being adhered so as to be 1.0% by weight.

【0016】さらに本発明のガラス繊維は、ガラス繊維
不織布に用いられることを特徴とする。
Further, the glass fiber of the present invention is characterized by being used for a glass fiber non-woven fabric.

【0017】[0017]

【作用】本発明における集束剤に含まれるエポキシ樹脂
は、耐薬品性に優れた材料であり、これが硬化剤と反応
して硬化すると、ガラス繊維の表面に耐薬品性の被膜が
形成されることになる。ただし、このエポキシ樹脂の含
有量が、固形分表示で、0.5重量%未満になると、上
記の効果が小さくなり、5.0重量%を超えると、湿式
不織布抄造時におけるガラスチョップドストランドの分
散性が悪くなる。
The epoxy resin contained in the sizing agent in the present invention is a material having excellent chemical resistance, and when this reacts with the curing agent to cure, a chemical resistant film is formed on the surface of the glass fiber. become. However, when the content of this epoxy resin is less than 0.5% by weight in terms of solid content, the above effect becomes small, and when it exceeds 5.0% by weight, dispersion of glass chopped strands at the time of wet-type nonwoven fabric making is produced. The sex becomes worse.

【0018】因にこのエポキシ樹脂としては、グリシジ
ル基を含有するビスフェノールA型や多官能型エポキシ
樹脂等の工業的に生産されているエポキシ樹脂を乳化し
たものであっても良いし、あるいは種々の方法で親水基
を導入し、水溶化したものであっても良い。
Incidentally, the epoxy resin may be an emulsion of an industrially produced epoxy resin such as bisphenol A type or polyfunctional type epoxy resin containing a glycidyl group, or various types. It may be a water-solubilized product by introducing a hydrophilic group by the method.

【0019】またこの種のガラス繊維は、切断される前
か後で加熱されるが、エポキシ樹脂の硬化剤は、加熱さ
れることによってエポキシ樹脂を硬化させる作用を有す
る材料である。この硬化剤は、特にエポキシ樹脂の被膜
とガラス繊維との接着性を考慮すると、アミノシランが
好適であるが、その含有量が、0.01重量%未満にな
ると、エポキシ樹脂を硬化させる作用が小さくなり、
5.0重量%を超えると、抄造時におけるガラスチョッ
プドストランドの分散性が悪くなる。
The glass fiber of this type is heated before or after it is cut, and the curing agent of the epoxy resin is a material having a function of curing the epoxy resin by heating. Aminosilane is suitable as this curing agent, especially considering the adhesiveness between the epoxy resin coating and the glass fiber, but when the content thereof is less than 0.01% by weight, the effect of curing the epoxy resin is small. Becomes
If it exceeds 5.0% by weight, the dispersibility of glass chopped strands during papermaking becomes poor.

【0020】エポキシシランを含むカップリング剤は、
集束剤のガラス繊維に対する濡れ性を良くし、集束剤が
ガラス繊維の表面に均一に被覆されるようにする材料で
ある。ただし、このカップリング剤が、0.05重量%
未満になると、上記の作用が小さくなり、0.5重量%
を超えると、抄造時におけるガラスチョップドストラン
ドの分散性が悪くなる。
The coupling agent containing epoxysilane is
It is a material that improves the wettability of the sizing agent with respect to the glass fibers and allows the surface of the glass fibers to be uniformly coated with the sizing agent. However, this coupling agent is 0.05% by weight
If the amount is less than 0.5% by weight, the above-mentioned action becomes small and 0.5% by weight
If it exceeds, the dispersibility of the glass chopped strands during papermaking becomes poor.

【0021】またビスフェノールAのエチレンオキサイ
ド付加物と、ポリエチレングリコール脂肪酸エステルの
ノニオン性界面活性剤は、ガラスチョップドストランド
を分散しやすくする材料である。ただし、このノニオン
性界面活性剤が、0.5重量%未満になると、上記の作
用が小さくなり、5.0重量%を超えると、加工工程に
おける作業性が悪くなる。
The ethylene oxide adduct of bisphenol A and the nonionic surfactant of polyethylene glycol fatty acid ester are materials which facilitate the dispersion of glass chopped strands. However, if the content of this nonionic surfactant is less than 0.5% by weight, the above-mentioned action becomes small, and if it exceeds 5.0% by weight, workability in the processing step becomes poor.

【0022】本発明においては、上記の材料以外にも、
集束剤の特性を損なわない程度に他の材料を含有させる
ことが可能であり、例えば紡糸性を向上させる目的で、
カチオン性脂肪酸アミド等を含有させても良い。
In the present invention, in addition to the above materials,
It is possible to include other materials to the extent that the properties of the sizing agent are not impaired, and for example, for the purpose of improving spinnability,
A cationic fatty acid amide or the like may be contained.

【0023】本発明におけるガラス繊維への集束剤の付
着量としては、強熱減量0.1〜1.0重量%が好まし
い。すなわち0.1重量%未満では、ガラス繊維表面へ
の被覆が不十分で、ガラス繊維不織布に十分な耐薬品性
を付与することができなくなり、一方、1.0重量%を
超えると、湿式不織布抄造時におけるガラスチョップド
ストランドの分散性が逆に悪くなる。
The amount of the sizing agent attached to the glass fibers in the present invention is preferably 0.1 to 1.0% by weight on ignition loss. That is, if it is less than 0.1% by weight, the coating on the surface of the glass fiber is insufficient and sufficient chemical resistance cannot be imparted to the glass fiber nonwoven fabric, while if it exceeds 1.0% by weight, it is a wet nonwoven fabric. On the contrary, the dispersibility of the glass chopped strands during papermaking becomes worse.

【0024】[0024]

【実施例】以下、本発明のガラス繊維を実施例に基づい
て詳細に説明する。
EXAMPLES The glass fiber of the present invention will be described in detail below based on examples.

【0025】(実施例1)まずビスフェノールA型エポ
キシ樹脂の側鎖の水酸基を利用し、ポリエチレングリコ
ール・ポリプロピレングリコールを導入し、水溶性と
し、分子量1200、エポキシ当量600としたエポキ
シ樹脂1.5重量%と、アミノシラン(A1100:日
本ユニカー株式会社製)0.2重量%と、エポキシシラ
ン(A187:日本ユニカー株式会社製)0.05重量
%と、ビスフェノールAのエチレンオキサイド30モル
当量付加物のノニオン性界面活性剤1.0重量%と、カ
チオン性脂肪酸アミド0.05重量%とからなる集束剤
を準備した。
(Example 1) First, using a hydroxyl group of a side chain of a bisphenol A type epoxy resin, polyethylene glycol / polypropylene glycol was introduced to make it water-soluble, and a molecular weight of 1200 and an epoxy equivalent of 600 were obtained. %, Aminosilane (A1100: manufactured by Nihon Unicar Co., Ltd.) 0.2% by weight, epoxysilane (A187: manufactured by Nihon Unicar Co., Ltd.) 0.05% by weight, and nonionic of ethylene oxide 30 molar equivalent adduct of bisphenol A. A sizing agent composed of 1.0% by weight of a cationic surfactant and 0.05% by weight of a cationic fatty acid amide was prepared.

【0026】この集束剤をEガラス繊維(直径10μ
m)に対し、強熱減量が0.3重量%となるように調整
して塗布し、それらを1600本結束させて巻き取った
後、130℃で10時間加熱してから13mmの長さに
切断した。
This sizing agent was mixed with E glass fiber (diameter 10 μm
m), the loss on ignition is adjusted to 0.3% by weight and applied, and 1600 of them are bundled and wound up, and then heated at 130 ° C. for 10 hours, and then a length of 13 mm is obtained. Disconnected.

【0027】(実施例2)まず分子量600、エポキシ
当量160のフェノールノボラック型エポキシ樹脂をノ
ニルフェノールエチレノキサイド付加物、プロピレンオ
キサイド・エチレンオキサイド共重合体を用いて乳化せ
しめ水性としたエポキシ樹脂1.0重量%と、アミノシ
ラン(A1100:日本ユニカー株式会社製)0.2重
量%と、エポキシシラン(A187:日本ユニカー株式
会社製)0.05重量%と、分子量2000のポリエチ
レングリコールのジステアリン酸エステルのノニオン性
界面活性剤1.2重量%と、カチオン性脂肪酸アミド
0.05重量%とからなる集束剤を準備した。
(Example 2) First, a phenol novolac type epoxy resin having a molecular weight of 600 and an epoxy equivalent of 160 was emulsified with a nonylphenol ethylenoxide adduct and a propylene oxide / ethylene oxide copolymer to make an aqueous epoxy resin 1.0. % By weight, aminosilane (A1100: manufactured by Nippon Unicar Co., Ltd.) 0.2% by weight, epoxysilane (A187: manufactured by Nippon Unicar Co., Ltd.) 0.05% by weight, and nonion of distearic acid ester of polyethylene glycol having a molecular weight of 2000. A sizing agent composed of 1.2% by weight of a cationic surfactant and 0.05% by weight of a cationic fatty acid amide was prepared.

【0028】この集束剤を実施例1と同様のガラス繊維
に対し、強熱減量が0.3重量%となるように調整して
塗布し、それらを1600本結束させて巻き取った後、
130℃で10時間加熱してから13mmの長さに切断
した。
This sizing agent was applied to the same glass fibers as in Example 1 with the loss on ignition adjusted to 0.3% by weight, and 1600 of them were bound and wound up,
After heating at 130 ° C. for 10 hours, it was cut into a length of 13 mm.

【0029】(比較例)実施例1の集束剤から、ノニオ
ン性界面活性剤を除いた集束剤を準備し、これを実施例
1と同様のガラス繊維に対し、強熱減量が0.3重量%
となるように調整して塗布し、それらを1600本結束
させて巻き取った後、130℃で10時間加熱してから
13mmの長さに切断した。
(Comparative Example) A sizing agent prepared by removing the nonionic surfactant from the sizing agent of Example 1 was prepared and the loss on ignition of the glass fiber similar to that of Example 1 was 0.3% by weight. %
The coating solution was adjusted so that 1600 pieces were bound, wound up, heated at 130 ° C. for 10 hours, and then cut into a length of 13 mm.

【0030】(従来例)ポリエチレンオキサイド0.2
重量%と、カチオン性脂肪酸アミド0.1重量とからな
る集束剤を準備し、これを実施例1と同様のガラス繊維
に対し、強熱減量が0.1重量%となるように調整して
塗布し、それらを1600本結束させて巻き取った後、
130℃で10時間加熱してから13mmの長さに切断
した。
(Conventional example) Polyethylene oxide 0.2
A sizing agent consisting of 10% by weight and 0.1% by weight of cationic fatty acid amide was prepared, and the sizing agent was adjusted so that the loss on ignition was 0.1% by weight with respect to the same glass fiber as in Example 1. After applying, bundling 1600 of them and winding them up,
After heating at 130 ° C. for 10 hours, it was cut into a length of 13 mm.

【0031】こうして作製した各ガラスチョップドスト
ランドを抄造する時の分散性と、得られたガラス繊維不
織布をアルカリ溶液や酸溶液に浸漬した後の引張強度を
調べ、それを表1に示した。
The dispersibility of each of the glass chopped strands thus produced during papermaking and the tensile strength of the resulting glass fiber nonwoven fabric after being dipped in an alkaline solution or an acid solution were examined, and the results are shown in Table 1.

【0032】[0032]

【表1】 [Table 1]

【0033】表から明らかなように、実施例1、2のガ
ラスチョップドストランドは、いずれも分散性が良好で
あり、またそれらから作製したガラス繊維不織布は、ア
ルカリ溶液および酸溶液に浸漬した後の引張強度が高か
った。
As can be seen from the table, the glass chopped strands of Examples 1 and 2 all had good dispersibility, and the glass fiber nonwoven fabrics made from them were soaked in an alkaline solution and an acid solution. The tensile strength was high.

【0034】一方、比較例のガラスチョップドストラン
ドは、分散性が悪く、また従来例のガラスチョップドス
トランドから作製したガラス繊維不織布は、アルカリ溶
液および酸溶液に浸漬した後の引張強度が低かった。
On the other hand, the glass chopped strands of Comparative Example had poor dispersibility, and the glass fiber nonwoven fabric prepared from the glass chopped strands of Conventional Example had low tensile strength after being dipped in an alkaline solution and an acid solution.

【0035】尚、上記分散性は、水系分散液(白水)中
に所定量のチョップドストランドを投入し、所定時間攪
拌してから直ちに抄造した後、未分散チョップドストラ
ンドの有無を目視で観察することによって評価したもの
であり、未分散チョップドストランドが皆無であったも
のを良好とし、少しでも存在したものを不良とした。
The above dispersibility is determined by adding a predetermined amount of chopped strands to an aqueous dispersion (white water), stirring the mixture for a predetermined period of time, and immediately making a paper, and then visually observing the presence or absence of undispersed chopped strands. It was evaluated according to the following criteria. The sample having no undispersed chopped strands was evaluated as good, and the sample containing even a small amount was evaluated as poor.

【0036】またアルカリ溶液や酸溶液に浸漬した後の
引張強度は、まず一般に使用されるアクリルエマルジョ
ン20重量%で硬化させた重量50g/m2 のガラス繊
維不織布を手すき法により作製し、これを5×20cm
の寸法に切断することによって試験片を得た後、この試
験片を複数個用意し、アルカリ溶液である3%水酸化ナ
トリウム水溶液に10時間、酸溶液である3%塩酸水溶
液に3時間、および20%パラトルエンスルホン酸水溶
液に3時間各々浸漬した後、引張試験機によって測定し
たものであり。これらの値が高いほど、耐薬品性に優れ
ていることになる。
The tensile strength after being immersed in an alkaline solution or an acid solution is a glass fiber non-woven fabric of 50 g / m 2 in weight, which is cured with 20% by weight of a commonly used acrylic emulsion. 5 x 20 cm
After obtaining a test piece by cutting it into a size of, a plurality of test pieces are prepared, and the test piece is provided with an alkaline solution of 3% sodium hydroxide solution for 10 hours, with an acid solution of 3% hydrochloric acid solution for 3 hours, and It was measured by a tensile tester after being immersed in a 20% aqueous paratoluenesulfonic acid solution for 3 hours. The higher these values, the better the chemical resistance.

【0037】[0037]

【発明の効果】以上のように本発明のガラス繊維は、表
面に耐薬品性の被膜が形成され、しかも湿式不織布抄造
時における分散性に優れているため、これからガラス繊
維不織布を作製し、床材の基材とした場合、寸法安定性
に優れた床材が得られ、またフェノール樹脂を用いた板
材の基材とした場合、フェノール樹脂を十分に硬化させ
ることができ、高い強度を有する成形体を得ることが可
能となる。
Industrial Applicability As described above, the glass fiber of the present invention has a chemically resistant film formed on the surface thereof and has excellent dispersibility during the wet nonwoven fabric making. When used as a base material for wood, a flooring material with excellent dimensional stability can be obtained. When used as a base material for a plate material using a phenol resin, the phenol resin can be sufficiently cured and has high strength. It becomes possible to gain a body.

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 エポキシ樹脂、エポキシ樹脂の硬化剤、
エポキシシランを含むシランカップリング剤、ビスフェ
ノールAのエチレンオキサイド付加物またはポリエチレ
ングリコール脂肪酸エステルのノニオン系界面活性剤を
含有する集束剤が塗布されてなることを特徴とするガラ
ス繊維。
1. An epoxy resin, a curing agent for an epoxy resin,
A glass fiber coated with a silane coupling agent containing epoxysilane, a sizing agent containing an ethylene oxide adduct of bisphenol A, or a nonionic surfactant of polyethylene glycol fatty acid ester.
【請求項2】 集束剤が、固形分表示で、エポキシ樹脂
0.5〜5.0重量%、硬化剤0.01〜5.0重量
%、シランカップリング剤0.05〜0.5重量%、ノ
ニオン系界面活性剤0.5〜5.0重量%を含有してな
り、強熱減量が、0.1〜1.0重量%となるように付
着してなることを特徴とする請求項1のガラス繊維。
2. The sizing agent is, in terms of solid content, 0.5 to 5.0% by weight of epoxy resin, 0.01 to 5.0% by weight of curing agent, and 0.05 to 0.5% by weight of silane coupling agent. %, 0.5 to 5.0% by weight of a nonionic surfactant, and adhered so that the loss on ignition is 0.1 to 1.0% by weight. Item 1 glass fiber.
【請求項3】 ガラス繊維不織布に用いられることを特
徴とする請求項1のガラス繊維。
3. The glass fiber according to claim 1, which is used for a glass fiber non-woven fabric.
JP7024766A 1994-03-31 1995-01-18 Glass fiber nonwoven Expired - Fee Related JP2768291B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP7024766A JP2768291B2 (en) 1994-03-31 1995-01-18 Glass fiber nonwoven
KR1019950031168A KR100404695B1 (en) 1995-01-18 1995-09-21 Fiberglass Nonwovens

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP8794294 1994-03-31
JP6-87942 1994-03-31
JP7024766A JP2768291B2 (en) 1994-03-31 1995-01-18 Glass fiber nonwoven

Publications (2)

Publication Number Publication Date
JPH07315888A true JPH07315888A (en) 1995-12-05
JP2768291B2 JP2768291B2 (en) 1998-06-25

Family

ID=26362343

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JP2768291B2 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07291675A (en) * 1994-04-22 1995-11-07 Asahi Fiber Glass Co Ltd Glass fiber for glass paper
EP1426347A1 (en) * 2002-12-05 2004-06-09 Cognis Deutschland GmbH & Co. KG Use of epoxy resins for coating of glass
EP1897924A1 (en) * 2006-09-08 2008-03-12 Nissin Chemical Industry Co., Ltd. Protective coating containing acetylene compound
US8216673B2 (en) 2005-08-03 2012-07-10 Nissin Chemical Industry Co., Ltd. Glass fiber-treating agent and glass fiber-treating composition
JP2013035697A (en) * 2011-08-04 2013-02-21 Nippon Electric Glass Co Ltd Glass fiber sizing agent, glass fiber, and glass fiber nonwoven fabric
US8632881B2 (en) 2006-09-08 2014-01-21 Nissin Chemical Industry Co., Ltd. Glass fiber product
CN108137824A (en) * 2015-10-07 2018-06-08 3M创新有限公司 The abrasive grain and bonded abrasive article that epoxy functional silane coupling agent, surface are modified
WO2019150894A1 (en) * 2018-02-05 2019-08-08 日本電気硝子株式会社 Mesh and material for preventing peeling-off of concrete

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6330349A (en) * 1986-07-23 1988-02-09 Nippon Electric Glass Co Ltd Bundling agent for water-dispersible glass fiber

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6330349A (en) * 1986-07-23 1988-02-09 Nippon Electric Glass Co Ltd Bundling agent for water-dispersible glass fiber

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07291675A (en) * 1994-04-22 1995-11-07 Asahi Fiber Glass Co Ltd Glass fiber for glass paper
EP1426347A1 (en) * 2002-12-05 2004-06-09 Cognis Deutschland GmbH & Co. KG Use of epoxy resins for coating of glass
US8216673B2 (en) 2005-08-03 2012-07-10 Nissin Chemical Industry Co., Ltd. Glass fiber-treating agent and glass fiber-treating composition
US8563132B2 (en) 2005-08-03 2013-10-22 Nissin Chemical Industry Co., Ltd. Glass fiber-treating agent and glass fiber-treating composition
EP1897924A1 (en) * 2006-09-08 2008-03-12 Nissin Chemical Industry Co., Ltd. Protective coating containing acetylene compound
US8632881B2 (en) 2006-09-08 2014-01-21 Nissin Chemical Industry Co., Ltd. Glass fiber product
JP2013035697A (en) * 2011-08-04 2013-02-21 Nippon Electric Glass Co Ltd Glass fiber sizing agent, glass fiber, and glass fiber nonwoven fabric
CN108137824A (en) * 2015-10-07 2018-06-08 3M创新有限公司 The abrasive grain and bonded abrasive article that epoxy functional silane coupling agent, surface are modified
WO2019150894A1 (en) * 2018-02-05 2019-08-08 日本電気硝子株式会社 Mesh and material for preventing peeling-off of concrete
JP2019135338A (en) * 2018-02-05 2019-08-15 日本電気硝子株式会社 Mesh and concrete exfoliation preventing material

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