JPS5817320B2 - Tainetseigouseishino Seizouhouhou - Google Patents
Tainetseigouseishino SeizouhouhouInfo
- Publication number
- JPS5817320B2 JPS5817320B2 JP49090296A JP9029674A JPS5817320B2 JP S5817320 B2 JPS5817320 B2 JP S5817320B2 JP 49090296 A JP49090296 A JP 49090296A JP 9029674 A JP9029674 A JP 9029674A JP S5817320 B2 JPS5817320 B2 JP S5817320B2
- Authority
- JP
- Japan
- Prior art keywords
- fibers
- heat
- resistant
- epoxy resin
- adhesive
- 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.)
- Expired
Links
- 239000000835 fiber Substances 0.000 claims description 54
- 239000000853 adhesive Substances 0.000 claims description 29
- 230000001070 adhesive effect Effects 0.000 claims description 29
- 239000003822 epoxy resin Substances 0.000 claims description 29
- 229920000647 polyepoxide Polymers 0.000 claims description 29
- 239000012210 heat-resistant fiber Substances 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000011342 resin composition Substances 0.000 claims description 5
- 229920001187 thermosetting polymer Polymers 0.000 claims description 4
- 238000000034 method Methods 0.000 description 16
- 239000000203 mixture Substances 0.000 description 14
- 238000009987 spinning Methods 0.000 description 13
- 239000000155 melt Substances 0.000 description 11
- 229920000742 Cotton Polymers 0.000 description 7
- 239000011810 insulating material Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 239000010754 BS 2869 Class F Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 239000004760 aramid Substances 0.000 description 3
- 229920003235 aromatic polyamide Polymers 0.000 description 3
- 239000010425 asbestos Substances 0.000 description 3
- 235000009508 confectionery Nutrition 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052895 riebeckite Inorganic materials 0.000 description 3
- LCFVJGUPQDGYKZ-UHFFFAOYSA-N Bisphenol A diglycidyl ether Chemical compound C=1C=C(OCC2OC2)C=CC=1C(C)(C)C(C=C1)=CC=C1OCC1CO1 LCFVJGUPQDGYKZ-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 2
- 229920006015 heat resistant resin Polymers 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000002966 varnish Substances 0.000 description 2
- KUBDPQJOLOUJRM-UHFFFAOYSA-N 2-(chloromethyl)oxirane;4-[2-(4-hydroxyphenyl)propan-2-yl]phenol Chemical compound ClCC1CO1.C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 KUBDPQJOLOUJRM-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- MQJKPEGWNLWLTK-UHFFFAOYSA-N Dapsone Chemical compound C1=CC(N)=CC=C1S(=O)(=O)C1=CC=C(N)C=C1 MQJKPEGWNLWLTK-UHFFFAOYSA-N 0.000 description 1
- 229920000914 Metallic fiber Polymers 0.000 description 1
- 239000004962 Polyamide-imide Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- ZZTCPWRAHWXWCH-UHFFFAOYSA-N diphenylmethanediamine Chemical compound C=1C=CC=CC=1C(N)(N)C1=CC=CC=C1 ZZTCPWRAHWXWCH-UHFFFAOYSA-N 0.000 description 1
- 239000012772 electrical insulation material Substances 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010035 extrusion spinning Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Landscapes
- Artificial Filaments (AREA)
- Nonwoven Fabrics (AREA)
- Paper (AREA)
- Organic Insulating Materials (AREA)
Description
【発明の詳細な説明】
本発明は耐熱性合成紙に関するものであり、更に詳細に
はエポキシ樹脂と硬化剤と力ち成るＢステージの接着剤
繊維により耐熱性繊維間を接着して成る合成紙の製造方
法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heat-resistant synthetic paper, and more particularly to a synthetic paper made by bonding heat-resistant fibers with B-stage adhesive fibers made of epoxy resin, curing agent, and strength. The present invention relates to a manufacturing method.
又、本発明の目的とするところは、優れた耐熱性を有す
る合成紙を通常の抄紙機により安価に、且つ大量に生産
することができる製造方法を提供する事であり、更に本
発明はＪ Ｉ Ｓ −Ｃ−４００３に規定されたＦ種絶
縁材料（耐熱温度１５５°Ｃ）として好適に使用し得る
ような耐熱性合成紙を提供する事をも目的とする。Another object of the present invention is to provide a manufacturing method that can produce synthetic paper having excellent heat resistance at low cost and in large quantities using an ordinary paper machine. Another object of the present invention is to provide a heat-resistant synthetic paper that can be suitably used as a Class F insulating material (heat-resistant temperature 155°C) specified in IS-C-4003.
従来より薄葉電気絶縁材料の分野においては、ＪＩＳ−
Ｃ〜４００３のＨ種、６種クラスの高耐熱性の材料はい
くつか提供されているが、これらは余りにも価格が高す
ぎ、耐熱性はＦ種程度でも価格の安いものが望まれてい
る。In the field of thin electrical insulation materials, JIS-
Several materials with high heat resistance of class H and class 6 of C to 4003 are available, but these are too expensive, and a low-priced material with heat resistance of class F is desired. .
このような薄葉電気絶縁材料は湿式抄紙法で生産するの
が安価で、しかも、厚みの均一なものが得られ、好まし
い。It is preferable to produce such a thin electrically insulating material by a wet papermaking method because it is inexpensive and can have a uniform thickness.
然し乍ら、湿式抄紙法において使用されるポリエステル
繊維、芳香族ポリアミド繊維、ガラス繊維、或はアスベ
スト繊維等の耐熱性繊維は、いづれも接着剤なしでは抄
紙が困難である。However, it is difficult to make paper from heat-resistant fibers such as polyester fibers, aromatic polyamide fibers, glass fibers, or asbestos fibers used in wet papermaking methods without an adhesive.
このため耐熱性の接着剤が必要とされ、従来より耐熱性
樹脂粉末を耐熱性繊維と混抄する方法、或は、乾燥前の
湿潤ウェブに耐熱性樹脂の溶液を含浸させる方法等が提
案された。For this reason, a heat-resistant adhesive is required, and conventional methods have been proposed, such as mixing heat-resistant resin powder with heat-resistant fibers, or impregnating a wet web with a solution of heat-resistant resin before drying. .
前者においては、粉末接着剤によって強度を得るために
は多量の配合が必要であり、又、白水が流失するために
効率が著るしく悪いという欠点がある。The former method requires a large amount of powdered adhesive in order to obtain strength, and also has the disadvantage that the efficiency is extremely low because white water is washed away.
後者の場合には含浸装置が必要となり、工程が非常に煩
雑となるため安価でしかも均一な品質の製品が得られに
くくなるという欠点を有する。In the latter case, an impregnating device is required, and the process becomes very complicated, which has the disadvantage that it is difficult to obtain products of uniform quality at low cost.
つまり従来は耐熱性合成紙の製造に適当な接着剤乃至接
着工程が見つからないために耐熱性繊維から耐熱性合成
紙を製造しようという試みが成功してないのである。In other words, conventional attempts to produce heat-resistant synthetic paper from heat-resistant fibers have not been successful because an adhesive or bonding process suitable for producing heat-resistant synthetic paper has not been found.
本発明者等は、以上のような技術、情況に鑑み鋭意研究
の結果、硬化剤を含むエポキシ樹脂組成物から遠心紡糸
法によりＢステージの水不溶性の繊維が得られること、
及びこの繊維が耐熱性合成紙の製造に極めて適した接着
剤であることを見出し本発明を完成するに至ったもので
ある。As a result of intensive research in view of the above-mentioned technology and circumstances, the present inventors have discovered that B-stage water-insoluble fibers can be obtained from an epoxy resin composition containing a curing agent by a centrifugal spinning method.
The inventors discovered that this fiber is an adhesive that is extremely suitable for producing heat-resistant synthetic paper, leading to the completion of the present invention.
即ち本発明は、エポキシ樹脂と硬化剤とから成る熱硬化
性樹脂組成物を溶融して遠心紡糸することによりＢステ
ージにある水不溶性の接着剤繊維を得、次いでこの接着
剤繊維５〜ｓｏｗｔ％と耐熱性繊維９５〜２０ｗｔ％と
を水中に分散して混合抄紙して湿潤シートを形成し、次
いでこのシートを乾燥加熱する事により接着剤繊維を溶
融して耐熱性繊維間を接着する事を特徴とする耐熱性合
成紙の製造方法である。That is, the present invention obtains B-stage water-insoluble adhesive fibers by melting and centrifugally spinning a thermosetting resin composition consisting of an epoxy resin and a curing agent, and then obtains 5 to sowt% of the adhesive fibers. and 95 to 20 wt% of heat-resistant fibers are dispersed in water and mixed to form a wet sheet, and then this sheet is dried and heated to melt the adhesive fibers and bond the heat-resistant fibers together. This is a method for producing heat-resistant synthetic paper.
＝般に、常温で固体のエポキシ樹脂は加熱により溶融す
る。=Epoxy resins that are solid at room temperature generally melt when heated.
この状態にある樹脂をＢステージの樹脂という。Resin in this state is called B-stage resin.
Ｂステージのエポキシ樹脂は溶融紡糸により繊維とする
ことができ、このＢステージにあるエポキシ樹脂の繊維
は加熱により溶融するため接着剤繊維として使用できる
。B-stage epoxy resin can be made into fibers by melt spinning, and since the B-stage epoxy resin fibers are melted by heating, they can be used as adhesive fibers.
しかし硬化剤を予め含まないエポキシ樹脂より得られた
Ｂステージの繊維は、紡糸後に硬化浴処理するか、抄紙
後に硬化浴処理が必要となる。However, B-stage fibers obtained from epoxy resins that do not contain a curing agent in advance require curing bath treatment after spinning or curing bath treatment after papermaking.
しかし、この場合にはエポキシ樹脂と硬化剤とが化学当
量的に反応しないため硬化が不完全で耐熱性が得られに
く（、又、工程も煩雑であるという欠点を有する。However, in this case, since the epoxy resin and the curing agent do not react chemically equivalently, curing is incomplete and heat resistance is difficult to obtain (and the process is also complicated).
従って、本発明においては予め硬化剤を含んだエポキシ
樹脂組成物よりＢステージにある繊維を得る。Therefore, in the present invention, B-stage fibers are obtained from an epoxy resin composition containing a curing agent in advance.
しかし硬化剤を予め含んだＢステージのエポキシ樹脂組
成物は加熱により溶融するが、更に長時間加熱すると硬
化してＣステージとなってしまう。However, a B-stage epoxy resin composition containing a curing agent in advance melts when heated, but if heated for an even longer period of time, it will harden and become C-stage.
つまり通常の溶融押出紡糸法によったのでは紡糸機内で
の滞留時間が不均一であり部分的に硬化が進行し、良好
な接着剤繊維が得られないのである。In other words, when using the usual melt extrusion spinning method, the residence time in the spinning machine is uneven, and curing progresses partially, making it impossible to obtain good adhesive fibers.
そのため本発明においては、加熱時間が短か（、エポキ
シ樹脂組成物が溶融して粘度が低下するや否や直ちに紡
糸される溶融遠心紡糸法を採用した。Therefore, in the present invention, a melt centrifugal spinning method was adopted in which the heating time is short (i.e., the epoxy resin composition is melted and the viscosity is reduced, and the fibers are spun immediately).
溶融遠心紡糸法においては、回転するヒートプレート上
に供給されたＢステージの樹脂組成物が加熱されて一定
の粘度に低下すると遠心力の作用により周囲に設けられ
たスリツ′ト（紡糸機のノズルに相当）から順次放出さ
れて繊維となる。In the melt centrifugal spinning method, when the B-stage resin composition supplied onto a rotating heat plate is heated and its viscosity decreases to a certain level, centrifugal force causes it to pass through a slit (nozzle of a spinning machine) around the spinning machine. (equivalent to ) are sequentially released and become fibers.
従って、エポキシ樹脂組成物に加わる熱が瞬間的であり
、Ｂステージのまま繊維化される。Therefore, the heat applied to the epoxy resin composition is instantaneous, and the epoxy resin composition is turned into fibers while remaining in the B stage.
溶融遠心紡糸機は原理的には綿菓子製造機と全く同じで
あり、本発明においてもこの綿菓子製造機を利用する事
が可能である。A melt centrifugal spinning machine is fundamentally the same as a cotton candy making machine, and this cotton candy making machine can also be used in the present invention.
この溶融遠心紡糸法においては、エポキシ樹脂組成物の
溶融粘度、加熱温度、回転速度（遠心力）が重要な紡糸
条件である。In this melt centrifugal spinning method, the melt viscosity of the epoxy resin composition, heating temperature, and rotation speed (centrifugal force) are important spinning conditions.
一般的にエポキシ樹脂組成物の溶融粘度が低い方が細い
繊維が得られ好ましい。Generally, it is preferable that the melt viscosity of the epoxy resin composition is lower because thinner fibers can be obtained.
回転速度が３９００ｒｐｒｎ 、加熱温度２１０〜２
３０℃との場合にはエポキシ樹脂組成物の２００℃にお
ける溶融粘度が５００ ｃｐｓ （Ｂ型粘度計による測
定）程度の時が５〜２０μの良好な繊維が得られ、１０
００ ｃｐｓ以上になると次第に微細な繊維が得られに
くくなる。Rotation speed is 3900rprn, heating temperature 210~2
In the case of 30°C, when the melt viscosity of the epoxy resin composition at 200°C is about 500 cps (measured with a B-type viscometer), good fibers of 5 to 20μ can be obtained, and 10
00 cps or more, it becomes increasingly difficult to obtain fine fibers.
本発明に使用されるエポキシ樹脂はビスフェノールＡ型
、環状脂肪族型、ノボラック型、ポリエーテル型、或は
ブロム化型等のエポキシ樹脂であり、いづれの型であっ
てもＢステージで溶融し繊維化し得るエポキシ樹脂であ
ればよい。The epoxy resin used in the present invention is a bisphenol A type, cycloaliphatic type, novolak type, polyether type, or brominated type epoxy resin, and any type of epoxy resin melts at the B stage and becomes a fiber. Any epoxy resin that can be used may be used.
このようにして溶融遠心紡糸法により得られるＢステー
ジのエポキシ樹脂組成物の繊維は、繊維長が数ｃｍ〜数
ＬＯｃｒｎであり綿塊状の形態である。The fibers of the B-stage epoxy resin composition obtained by the melt centrifugal spinning method in this manner have a fiber length of several cm to several LO crn and are in the form of a cotton mass.
これは耐熱性繊維と共に水に分散させる時の攪拌によっ
て抄紙に適当な０．５〜３ｍｍの長さに切断される。This is cut into lengths of 0.5 to 3 mm suitable for paper making by stirring when dispersing in water together with heat-resistant fibers.
又、本発明のエポキシ樹脂組成物のＢステージの繊維は
、水中に分散されて耐熱性繊維と混抄されるため水不溶
性のものでなければならない。Furthermore, the B-stage fibers of the epoxy resin composition of the present invention must be water-insoluble since they are dispersed in water and mixed with heat-resistant fibers.
つまり組成物中の硬化剤が水中に溶出してしまったり、
繊維が水に溶解してしまわない程度の水不溶性が必要で
ある。In other words, the curing agent in the composition may dissolve into the water,
Water insolubility is required to the extent that the fibers do not dissolve in water.
上記の如くして得られる本発明のエポキシ樹脂組成物の
Ｂステージの繊維は再加熱により溶融するので耐熱性繊
維間を接着する事が出き、更に長時間加熱すれば硬化し
て耐熱性となる。Since the B-stage fibers of the epoxy resin composition of the present invention obtained as described above melt when reheated, it is possible to bond between the heat-resistant fibers, and when heated for a further long time, it hardens and becomes heat-resistant. Become.
このエポキシ樹脂組成物のＢステージにある水不溶性の
接着剤繊維は耐熱性繊維と混合抄紙されるのであるが、
少な（とも全体の５ｗｔ％以上配合しないと生産工程に
必要な接着強度が得られない。The water-insoluble adhesive fibers in the B stage of this epoxy resin composition are mixed with heat-resistant fibers to make paper.
Unless a small amount (at least 5 wt% of the total amount) is added, the adhesive strength necessary for the production process cannot be obtained.
一方、ｓｏｗｔ％以上になると接着剤繊維が多すぎドラ
イヤーに接着剤が付着して工程上の障害となり、又、得
られた合成紙もエポキシ樹脂成分が多いので、かたくも
ろいものとなる。On the other hand, when it exceeds sowt%, there are too many adhesive fibers, and the adhesive adheres to the dryer, causing a problem in the process, and the resulting synthetic paper also contains a large amount of epoxy resin, making it hard and brittle.
本発明の接着剤繊維と混抄し得る耐熱性繊維としては、
例えばポリエステル繊維、芳香族ポリアミド繊維、ポリ
アミド繊維、ポリアミドイミド繊維、ポリイミド重維、
ポリアミドヒドラジド繊維、ポリペンズイミダゾフエナ
ントロン繊維、ガラス繊維、アスベスト、等が考えられ
、これらの耐熱性繊維と混抄して得られた合成紙は特に
電気絶縁材料として適しており、Ｆ種絶縁材料として好
適に使用し得る。Heat-resistant fibers that can be mixed with the adhesive fibers of the present invention include:
For example, polyester fiber, aromatic polyamide fiber, polyamide fiber, polyamideimide fiber, polyimide heavy fiber,
Possible materials include polyamide hydrazide fibers, polypenzimidazophenanthrone fibers, glass fibers, asbestos, etc. Synthetic paper obtained by mixing these heat-resistant fibers is particularly suitable as an electrical insulating material, and is classified as an F-class insulating material. It can be suitably used as
絶縁材料以外の分野に使用する場合には、ステンレス、
銅、アルミニウム等の金属繊維を使用することもできる
。When used in fields other than insulating materials, stainless steel,
Metallic fibers such as copper and aluminum can also be used.
又、必要に応じて充填剤等を混合抄紙してもよい。Further, if necessary, a filler or the like may be mixed in the paper.
抄紙工程は、従来公知の方法により容易に実施できる。The papermaking process can be easily carried out by conventionally known methods.
抄紙工程によって形成された湿潤シートは次いで乾燥さ
れる。The wet sheet formed by the papermaking process is then dried.
乾燥温度は接着剤繊維の融点以上で行なわれ、接着剤繊
維が溶融して耐熱性繊維間が接着される。The drying temperature is set to a temperature higher than the melting point of the adhesive fibers, so that the adhesive fibers melt and the heat-resistant fibers are bonded together.
シートは必要に応じて更に加熱されて接着剤は硬化し、
完全な耐熱性となる。The sheet is further heated as necessary to harden the adhesive.
Completely heat resistant.
硬化のための再加熱は乾燥工程に連続して行なっても良
いし、いったん合成紙が製造された後、随時に行っても
良い。Reheating for curing may be performed continuously during the drying process, or may be performed at any time after the synthetic paper has been manufactured.
以上説明したように、本発明の耐熱性合成紙の製造方法
は従来公知の抄紙機を利用して容易に実施する事ができ
る。As explained above, the method for producing heat-resistant synthetic paper of the present invention can be easily carried out using a conventionally known paper machine.
又本発明においては接着剤を繊維の形態で使用するので
接着が均一であり、品質の良好な耐熱性合成紙が安価に
製造する事ができる。Further, in the present invention, since the adhesive is used in the form of fibers, the adhesion is uniform, and high-quality heat-resistant synthetic paper can be manufactured at low cost.
使用できる耐熱性繊維も有機繊維、無機繊維いづれでも
水に分散可能な繊維ならば良く、本発明の適用される範
囲は広い。The heat-resistant fibers that can be used may be organic fibers or inorganic fibers as long as they are dispersible in water, and the present invention has a wide range of applications.
又、本発明により製造される耐熱性合成紙は、硬化前な
らば低温、低圧力でカレンダーリングするだけで緻密化
する事が可能であり、ワニス含浸性も合成紙が繊維より
形成されたものであるから良好である。In addition, the heat-resistant synthetic paper manufactured by the present invention can be densified by simply calendering at low temperature and low pressure before curing, and the varnish impregnation property is similar to that of synthetic paper made from fibers. Therefore, it is good.
以下に実施例を挙げて本発明を更に具体的に説明する。The present invention will be explained in more detail with reference to Examples below.
実施例 １
エポキシ樹脂としてエポキシ当量約５００、融点６４〜
７４℃、２００°Ｃにおける溶融粘度７０ｃｐｓ （Ｂ
型粘度計による）のビスフェノールＡジグリシジルエ
ーテル（商品名Ｅｐｉｋｏｔｅ ］ ００１、シェル化
学社製）１００部と、硬化剤としてジアミノジフェニル
スルフォン１０部とから成る熱硬化性樹脂組成物を粉砕
して溶融遠心紡糸機（光陽機械製作所の普及型綿菓子機
を使用）に供給し、加熱温度２３０℃、回転半径６７．
５ｍｍ、回転数３９００ ｒｐｍ で紡糸した。Example 1 As an epoxy resin, the epoxy equivalent is about 500 and the melting point is 64~
Melt viscosity 70 cps at 74°C and 200°C (B
A thermosetting resin composition consisting of 100 parts of bisphenol A diglycidyl ether (trade name: Epikote 001, manufactured by Shell Chemical Co., Ltd.) and 10 parts of diaminodiphenylsulfone as a hardening agent was ground and melt-centrifuged. The spinning machine (using a popular type cotton candy machine manufactured by Koyo Kikai Seisakusho) was supplied with a heating temperature of 230°C and a rotation radius of 67.
5 mm and a rotational speed of 3900 rpm.
得られた接着剤繊維は径５〜２０μであり綿塊状であっ
た。The obtained adhesive fibers had a diameter of 5 to 20 μm and were in the form of a cotton mass.
次いで、この接着剤繊維５０ｗｔ％と１５デニール、６
ｍｍ長の芳香族ポリアミド繊維（商品名コーネクス、余
人■製）５０ｗｔ％とを／々ルノ々−に仕込み、分散助
剤としてポリアクリル酸ソーダ０．０２％を添加し、繊
維濃度０．８％に分散した。Next, 50 wt% of this adhesive fiber, 15 denier, 6
50 wt% of mm-long aromatic polyamide fibers (trade name: Conex, manufactured by Yujin) were charged into a lancet, 0.02% of sodium polyacrylate was added as a dispersion aid, and the fiber concentration was 0.8%. dispersed into
綿塊状の接着剤繊維は分散の際の攪拌によって１〜２ｍ
ｍ長に切断された。The adhesive fibers in the form of cotton lumps are dispersed in 1 to 2 m by stirring during dispersion.
It was cut into lengths of m.
次いで傾斜式スクリーンで秒速５ｍ／分で抄紙した。Then, paper was made using an inclined screen at a speed of 5 m/min.
乾燥はサクションドラムドライヤーにより温度１５０°
Ｃで行った。Drying is done using a suction drum dryer at a temperature of 150°.
I went with C.
得られた合成紙は目付４２９／ｒｔｒ’−厚み０．２Ｈ
ｚ。The obtained synthetic paper has a basis weight of 429/rtr' and a thickness of 0.2H.
z.
裂断長（Ｍ、Ｄ、方向）０．５ｈであった。The fracture length (M, D, direction) was 0.5 h.
これは更に１８０°Ｃで１０分間硬化処理を行なった結
果裂断長は（Ｍ、Ｄ、方向）５．９に７ｎまで向上し、
耐熱性においては１７５℃とのオープン中に１０００時
間放置後も重量減は２．５％で裂断長の低下も３％（４
，１ｈｍ）であり、極めて優れた耐熱性を示した。As a result of further curing at 180°C for 10 minutes, the fracture length (M, D, direction) improved to 5.9 (7n).
In terms of heat resistance, even after being left open for 1000 hours at 175℃, the weight loss was 2.5% and the tearing length decreased by 3% (4
, 1hm) and showed extremely excellent heat resistance.
また、この合成紙はエポキシ樹脂等のワニス含浸性にも
優れ、Ｆ種絶縁材料として好適に使用できるものであっ
た。Furthermore, this synthetic paper had excellent impregnability with varnish such as epoxy resin, and could be suitably used as a class F insulating material.
実施例 ２
エポキシ樹脂としてエポキシ当量約６５０、融点７５〜
８５℃、２００℃における溶融粘度１３０ｃｐｓ（Ｂ型
粘度計による）のビスフェノールＡジグリシジルエーテ
ル（商品名Ｅｐｉｋｏｔｅ１００２、シェル化学社製）
１００部と、硬化剤としてジアミノジフェニルメタン１
０部とから成る熱硬化性樹脂組成物を用いて実施例１と
同様にして接着剤繊維を得た。Example 2 As an epoxy resin, epoxy equivalent is about 650 and melting point is 75~
Bisphenol A diglycidyl ether (trade name Epikote 1002, manufactured by Shell Chemical Co., Ltd.) with a melt viscosity of 130 cps (by B-type viscometer) at 85°C and 200°C
100 parts and 1 part of diaminodiphenylmethane as a hardening agent.
Adhesive fibers were obtained in the same manner as in Example 1 using a thermosetting resin composition consisting of 0 parts.
得られた接着剤繊維は径５〜２０μで綿塊状であった。The obtained adhesive fibers had a diameter of 5 to 20 microns and were in the form of a cotton mass.
次いでこの接着剤繊維４５ｗｔ％と径９μ、１３ｍｍ長
のＥガラス繊維３０ｗｔ％とアスベスト繊維２５ｗｔ％
とを実施例１と同様にして抄紙した。Next, 45 wt% of this adhesive fiber, 30 wt% of E glass fiber with a diameter of 9μ and a length of 13 mm, and 25 wt% of asbestos fiber were added.
Paper was made in the same manner as in Example 1.
得られた合成紙は目付５５ ？ ／ ｍ −厚み０．２
２ｍｍ 、裂断長（Ｍ、Ｄ、方向） ０．６ ｋｍであ
った。The obtained synthetic paper has a basis weight of 55? / m - thickness 0.2
2 mm, and the fracture length (M, D, direction) was 0.6 km.
これは更に１８０°Ｃで５分間硬化処理する事により裂
断長は６．６ｋｍまで向上し、耐熱性もＦ種絶縁材料と
して充分使用できる程度であった。By further curing at 180°C for 5 minutes, the fracture length was improved to 6.6 km, and the heat resistance was sufficient to be used as a class F insulating material.
Claims (1)
物を溶融して遠心紡糸することによりＢステージにある
水不溶性の接着剤繊維を得、次いでこの接着剤繊維５〜
ｓｏｗｔ％と耐熱性繊維９５〜２０ｗｔ％とを水中に分
散して混合抄紙して湿潤シートを形成し、次いでこのシ
ートを乾燥加熱することにより接着剤繊維を溶融して耐
熱性繊維間を接着する事を特徴とする耐熱性合成紙の製
造方法。1. A thermosetting resin composition consisting of an epoxy resin and a curing agent is melted and centrifugally spun to obtain water-insoluble adhesive fibers at the B stage, and then the adhesive fibers 5-
sowt% and 95 to 20wt% of heat-resistant fibers are dispersed in water and mixed to form a wet sheet, and then this sheet is dried and heated to melt the adhesive fibers and bond the heat-resistant fibers together. A method for producing heat-resistant synthetic paper characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP49090296A JPS5817320B2 (en) | 1974-08-08 | 1974-08-08 | Tainetseigouseishino Seizouhouhou |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP49090296A JPS5817320B2 (en) | 1974-08-08 | 1974-08-08 | Tainetseigouseishino Seizouhouhou |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5119804A JPS5119804A (en) | 1976-02-17 |
| JPS5817320B2 true JPS5817320B2 (en) | 1983-04-06 |
Family
ID=13994560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP49090296A Expired JPS5817320B2 (en) | 1974-08-08 | 1974-08-08 | Tainetseigouseishino Seizouhouhou |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5817320B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59121322U (en) * | 1983-02-04 | 1984-08-15 | レンゴ−株式会社 | Bliss-shaped box |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4405407A (en) * | 1980-04-16 | 1983-09-20 | Imperial Chemical Industries Plc | Fibrous materials |
| JPS59112099A (en) * | 1982-12-15 | 1984-06-28 | 日本無機株式会社 | Production of glass paper |
-
1974
- 1974-08-08 JP JP49090296A patent/JPS5817320B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59121322U (en) * | 1983-02-04 | 1984-08-15 | レンゴ−株式会社 | Bliss-shaped box |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5119804A (en) | 1976-02-17 |
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