JPS58163107A - Method of producing insulated wire - Google Patents
Method of producing insulated wireInfo
- Publication number
- JPS58163107A JPS58163107A JP4550882A JP4550882A JPS58163107A JP S58163107 A JPS58163107 A JP S58163107A JP 4550882 A JP4550882 A JP 4550882A JP 4550882 A JP4550882 A JP 4550882A JP S58163107 A JPS58163107 A JP S58163107A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- radiation
- wire
- insulated wire
- coating layer
- 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
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- Application Of Or Painting With Fluid Materials (AREA)
- Organic Insulating Materials (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明はポリアミド系樹脂で絶縁被覆した絶縁心線の製
造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing an insulated core wire coated with a polyamide resin.
従来マグネットワイヤのような絶縁4線の製造には、通
常樹脂を有機溶剤に溶解した絶縁塗料を導体上に塗布、
乾燥、固化させている。この際、絶縁塗料の導体への被
覆を容易にするために多縦の溶剤を用いて粘度を調整し
ているが、その溶剤の毒性、溶剤回収が十分に行うこと
ができない等の理由で、作業環境の改善および省資源の
見地から溶剤を使用17ない絶縁′d線の製造方法が強
く望まれている。Conventionally, to manufacture insulated 4-wire wires such as magnet wires, an insulating paint made by dissolving resin in an organic solvent is usually applied to the conductor.
It is dried and solidified. At this time, in order to make it easier to coat the conductor with insulating paint, the viscosity is adjusted using a vertical solvent, but due to the toxicity of the solvent and the inability to recover the solvent sufficiently, From the viewpoint of improving the working environment and saving resources, there is a strong desire for a method of manufacturing insulated d-wires that does not use solvents.
これらの要望に対してポリアミド糸樹脂のような熱可塑
性樹脂を押出成型により導体上に浴融塗布する方法が考
えられるが、単に熱可塑性樹脂を導体上に被覆したのみ
では、耐摩耗性をはじめ機械的強さ、耐熱劣化特性等が
劣り、JIS規格に合格するようなマグネットワイヤと
して使用できる絶縁電線は到底得ることはできず、また
使用できるとしても極めて限られた機器に使用できるに
すぎない。In order to meet these demands, a method of bath-melting thermoplastic resin such as polyamide thread resin onto the conductor by extrusion molding may be considered, but simply coating the conductor with thermoplastic resin will not improve wear resistance or other properties. It is impossible to obtain an insulated wire that passes JIS standards and can be used as a magnet wire due to its inferior mechanical strength and heat deterioration resistance, and even if it can be used, it can only be used in extremely limited equipment. .
本発明の目的はポリアミド系樹脂を導体上に被覆するに
際して溶剤を使用せず、しかも上述の欠点を有しておら
ずかつマグネットワイヤとして十分使用できる性nヒを
具備した絶縁電線を製造する方法を提供するにある。The object of the present invention is to produce an insulated wire that does not use a solvent when coating a conductor with a polyamide resin, does not have the above-mentioned drawbacks, and has sufficient properties to be used as a magnet wire. is to provide.
本発明者等は上述の目的を達成するために溶剤を使用し
ない絶縁電線の製造方法について鋭意研究を重ねた結果
、先ずポリアミド系樹脂を線状導体上に被覆し、この樹
脂被覆層に放射線を照射して該被覆層のゲル分率が20
%以上になるまで架橋させることによりほぼ絶縁電線と
しての特性を得ることができたが、溶剤タイプの塗料を
用いて製造した絶縁電線と比較すると、熱軟化特性、硬
度、耐摩耗性等のような機械的特性等の面でなお劣るも
のであり、更に検討を加えた結果、ポリアミド系樹脂の
被覆層に放射線を照射する前に、こ1 の樹脂被
覆層の表面に不飽和単量体を塗布することによって、被
覆層の架橋密度が増大し、耐熱性が向上し、架橋の結合
力が強化されて、熱安定性を改善することができ、また
機械的強さも同上させることができ、かくして上述の欠
点を消滅できることを見い出し、本発明に到達したもの
である。In order to achieve the above-mentioned object, the present inventors have conducted extensive research on a method for manufacturing insulated wires that does not use solvents, and as a result, they first coated a linear conductor with polyamide resin, and then exposed this resin coating layer to radiation. The gel fraction of the coating layer is 20 after irradiation.
By cross-linking the wire to a temperature of 10% or more, we were able to obtain properties similar to those of an insulated wire. However, as a result of further investigation, it was found that unsaturated monomers were added to the surface of the polyamide resin coating layer before irradiating the polyamide resin coating layer with radiation. By coating, the crosslinking density of the coating layer increases, heat resistance is improved, the bonding force of crosslinking is strengthened, thermal stability can be improved, and mechanical strength can also be improved. Thus, it has been discovered that the above-mentioned drawbacks can be eliminated, and the present invention has been achieved.
本発明は、fatポリアミド系樹脂を線状導体上に被覆
し、lblこの樹脂被覆j−の表面に多官能性不飽和単
量体を塗布し、iclこの被覆層に放射線を照射して前
記被覆層のゲル分率が20%り上になるまで架橋させる
ことにより上述の目的を達成する。In the present invention, a linear conductor is coated with a fat polyamide resin, a polyfunctional unsaturated monomer is applied to the surface of the resin coating, and the coating layer is irradiated with radiation. The above objective is achieved by crosslinking until the gel fraction of the layer is above 20%.
本発明で使用するポリアミド系樹脂は、例えば、ナイロ
ン6(ポリカブラミド)、ナイロン6・6(ポリへキサ
メチレンアジボアミド)、ナイロン6・10(ポリへキ
サメチレンセバカミド)、ナイロン11(ポリウンデカ
ンアミド)、ナイロン】2(ボ11ラウリンアミド)等
のホモポリマーおよびナイロン6/ナイロン6・6/ナ
イロン6・10(10/40/fiO重書%)共重合体
、ε−カプロラクタム/ナイロン6・6#A/ナイロン
6・lO塩(10/40150重量%)共電合体等のよ
うな二成分、三成分等の共重合体である。本発明で使用
するポリアミド系樹脂には、所要に応じて、各種の添加
剤、例えば、老化防止剤のような安定剤、顔料、ガラス
繊維等のような充填剤を添加することができる。溶剤を
使用せずにポリアミド系樹脂を線状導体上に被覆する方
法へことは、加熱溶融状態にして塗布する方法、あるい
は押出成形等のような通常の熱可塑性樹脂の成形方法に
よって容易に行うことができる。Examples of the polyamide resin used in the present invention include nylon 6 (polycabramide), nylon 6/6 (polyhexamethylene aziboamide), nylon 6/10 (polyhexamethylene sebaamide), and nylon 11 (polyhexamethylene aziboamide). homopolymers such as undecaneamide), nylon 2 (bo-11 lauramide), and nylon 6/nylon 6.6/nylon 6.10 (10/40/fiO %) copolymers, ε-caprolactam/nylon 6 - 6#A/Nylon 6.1O salt (10/40 150% by weight) It is a binary or ternary copolymer such as a coelectric polymer. If necessary, various additives such as stabilizers such as anti-aging agents, pigments, fillers such as glass fibers, etc. can be added to the polyamide resin used in the present invention. Coating polyamide resin onto a linear conductor without using a solvent can be easily done by applying it in a heated molten state, or by a normal thermoplastic resin molding method such as extrusion molding. be able to.
本発明で使用する多官能性不飽和単量体はジビニルベン
ゼン、モノ−、ジー、トリーおヨヒテトラーエチレング
リコールジアクリレート類。The polyfunctional unsaturated monomers used in the present invention are divinylbenzene, mono-, di-, and tri-ethylene glycol diacrylates.
モノ−、ジー、トリー、およびテトラ−エチレングリコ
ールジメタクリレート類、ビニルアクリレート、ビニル
メタクリレート、アリルアクリレート、アリルメタクリ
レート、ジエチレングリ;−ルのジビニルエーテル、ジ
アリルマレエート、ジアリルイタコネート、ジアリルベ
ンゼンホスホネート、トリアリルホスフェート、トリア
リルシアヌレート、トリアリルイソシアヌレート、グリ
セリントリメタクリレート、トリス(g−ヒドロキシエ
チル)イソシアヌル酸のアクリル酸エステルトリス(2
−ヒドロキシエチル)イソシアヌル酸のメタクリル酸エ
ステル、ジシクロペンテニルアクリレート、ジシクロペ
ンテニルオキシ−エチルアクリレート、これらの対応す
る近縁同族体およびこれらの混合物からなる群から選定
した多官能性不飽和単量体である。多官能性不飽和単量
体はポリアミド系樹脂に練り込む必要がなく、単にポリ
アミド系樹脂の表面に塗布するだけで十分な特性を示す
ので、製造工程上および経済上有利である。多官能性単
量体の塗布には噴霧器により多官能性単量体を吹き付け
る方法、檜等に多官能性単量体を入れておき−この中に
ポリアミド系樹脂被覆電1線を浸漬通過させる方法等を
使用することができる。Mono-, di-, tri-, and tetra-ethylene glycol dimethacrylates, vinyl acrylate, vinyl methacrylate, allyl acrylate, allyl methacrylate, divinyl ether of diethylene glycol, diallyl maleate, diallyl itaconate, diallylbenzene phosphonate, tri- Allyl phosphate, triallyl cyanurate, triallyl isocyanurate, glycerin trimethacrylate, tris(g-hydroxyethyl)isocyanuric acid acrylic acid ester tris(2
- polyfunctional unsaturated monomers selected from the group consisting of methacrylic esters of (hydroxyethyl) isocyanuric acid, dicyclopentenyl acrylate, dicyclopentenyloxy-ethyl acrylate, their corresponding close homologues and mixtures thereof. It is. The polyfunctional unsaturated monomer does not need to be kneaded into the polyamide resin, and exhibits sufficient properties simply by being applied to the surface of the polyamide resin, which is advantageous in terms of manufacturing process and economy. To apply the polyfunctional monomer, use a sprayer to spray the polyfunctional monomer, or place the polyfunctional monomer in cypress wood or the like and pass the polyamide resin-coated wire through it by dipping it. method etc. can be used.
多官能性単量体塗布後この被覆層を架橋させる放射線と
しては、例えば、電子線、α線、β線。Examples of the radiation that crosslinks the coating layer after coating the polyfunctional monomer include electron beams, alpha rays, and beta rays.
紫外線などが使用されるが、大容量が容易に得られかつ
塗布した粘着性組成物への照射操作の迅速化を図ること
ができる電子加速装置から発生する高エネルギー電子線
、および比較的容易に得られる紫外線が特に好ましい。Although ultraviolet rays are used, high-energy electron beams generated from electron accelerators that can easily obtain a large capacity and speed up the irradiation operation on the applied adhesive composition, and relatively easily The resulting UV radiation is particularly preferred.
樹脂被覆層に照射する放射線の照射線量は好ましい線源
である電子線を使用する場合には5〜fl OMrad
の範囲であることが望ましく、特に好ましい範囲は20
〜40Mradである。この理由は、照射線看が5 M
rad以下の場合には架橋が不十分であり、ゲル分率が
20%に達しないため、マグネットワイヤ用絶縁′I!
II線として必要な特性を得ることが困難であり、また
fl O’Mradより多量照射しても効果は増大せず
、むしろ分解反応が生起し、特性が低下する傾向がある
からである。ここに「ゲル分率」とは、90°Cのm−
クレゾール中で加熱した場合の不溶残分の全被覆層に対
する重量割合である。また紫外線を使用する場合には、
高圧水銀灯を用いて電線と水銀灯との間の距離を10c
rnとしかつ0.4〜10秒程度の照射を行うことによ
り、ゲル分率が20%以上になるまで架橋させることが
できる。The irradiation dose of the radiation irradiated to the resin coating layer is 5 to fl OMrad when using an electron beam, which is a preferable radiation source.
It is desirable that the range is 20, and a particularly preferable range is 20.
~40 Mrad. The reason for this is that the radiation monitor is 5 M
If it is less than rad, the crosslinking is insufficient and the gel fraction does not reach 20%, so the magnet wire insulation 'I!
This is because it is difficult to obtain the necessary characteristics as a II beam, and even if irradiation is performed in a larger amount than fl O'Mrad, the effect will not increase, but rather a decomposition reaction will occur and the characteristics will tend to deteriorate. "Gel fraction" here refers to m-
This is the weight ratio of the insoluble residue to the total coating layer when heated in cresol. Also, when using ultraviolet light,
Using a high-pressure mercury lamp, the distance between the electric wire and the mercury lamp is 10c.
By setting rn and performing irradiation for about 0.4 to 10 seconds, crosslinking can be carried out until the gel fraction reaches 20% or more.
1 紫外線の場合には、用いる多官能性不飽和単
量体中に予め0・5〜5重量%の範囲で、例えば、ベン
ゾフェノンあるいはその誘導体、ベンゾインエーテル、
ベンジル、ベンジルジメチルケタール、テトラメチルチ
ウラムモノサルファイド等の光開始剤を添加配合したも
のを用いる必要がある。なお、光開始剤をポリアミド系
樹脂中に添加配合させておくことも考えられるが、この
場合には樹脂が高融点であるため混練時に光開始剤が分
解等を起し、所期の効果が得られなくなるので好ましく
ない。1. In the case of ultraviolet rays, 0.5 to 5% by weight of the polyfunctional unsaturated monomer used, for example, benzophenone or its derivatives, benzoin ether,
It is necessary to use a photoinitiator such as benzyl, benzyl dimethyl ketal, or tetramethylthiuram monosulfide. It is also possible to add and blend a photoinitiator into the polyamide resin, but in this case, since the resin has a high melting point, the photoinitiator may decompose during kneading, and the desired effect may not be achieved. This is not preferable because it will not be possible to obtain it.
なお、放射、腺の照射は時にその雰囲気を限定されず、
例えば、酸素を含有しない雰囲気、空気のような酸素を
含有する雰囲気等、いずれの雰囲気中でも行うことがで
きる。Furthermore, radiation and irradiation of glands are sometimes not limited to the atmosphere;
For example, it can be carried out in any atmosphere, such as an atmosphere that does not contain oxygen or an atmosphere that contains oxygen such as air.
ポリアミド系樹脂の被覆j−の表面に塗布された多官能
性不飽和単量体は、多官能性単量体相互で反応するほか
、ポリアミド樹脂の架橋が進行する途中の段階で発生す
る遊離基と反応することが考えられる。多官能性単量体
が共存すると、ポリアミド系樹脂単独の場合より強固な
架橋生成物が生成し、このため多官能性不飽和単量体の
塗布を行わない放射線架橋のみの場合より優れた耐熱性
および機械特性が得られるものと考えられる。マグネッ
トワイヤ用絶縁電線に関して、その耐熱性の尺度として
重要な上昇熱軟化温度について耐熱性を比較すると、多
官能性単量体を塗布してない放射線架橋のみのものは2
60°C程度であるのに対し、多官能性単量体を塗布し
たものはaOO″C程度と著しい向上を示す。The polyfunctional unsaturated monomers applied to the surface of the polyamide resin coating j- not only react with each other, but also react with free radicals generated during the crosslinking process of the polyamide resin. It is possible to react with When polyfunctional monomers coexist, a stronger crosslinked product is produced than when polyamide resin is used alone, and therefore it has better heat resistance than when radiation crosslinking alone is used without coating polyfunctional unsaturated monomers. It is believed that this provides good physical properties and mechanical properties. When comparing the heat resistance of insulated wires for magnet wires with respect to the increased heat softening temperature, which is important as a measure of their heat resistance, those with only radiation crosslinking and not coated with a polyfunctional monomer are 2.
While the temperature is about 60°C, the one coated with a polyfunctional monomer shows a remarkable improvement to about aOO″C.
本発明により絶縁電線を製造するに当っては、(atポ
リアミド系樹脂の被覆、(bl多官能性単量体の塗布お
よび放射線照射の各工程は、走行する線状導体を使用し
て連続的に行うのが好ましい。被覆層は加熱工程で樹脂
の融点以上の温度に加熱されて溶融し、溶剤な使用する
従来の塗料を塗布した場合と同様に液状になるので、従
来方法と同様に走行状態で行わないと、樹脂被覆層の偏
り、滴下等が発生する。また、多官能性単量体の塗布後
にボビン等に巻取ることは、塗布ムラが生じて特性の変
化を招くことがあるのであまり好ましくない。In producing an insulated wire according to the present invention, each step of (coating with at polyamide resin, coating with (bl polyfunctional monomer) and irradiation with radiation is carried out continuously using a running linear conductor. The coating layer is heated to a temperature higher than the melting point of the resin in the heating process and melts, becoming liquid in the same way as when applying conventional paints that use solvents. If this is not done in the correct condition, unevenness or dripping of the resin coating layer will occur.In addition, winding up on a bobbin etc. after coating the polyfunctional monomer may cause uneven coating and change in properties. So I don't like it very much.
従って、樹脂の被覆、単量体の塗布および放射線の照射
の各工程は連続的に行うことが最も好ましい。溶剤な使
用する従来の製造方法では、皮膜形成のための塗布焼付
工程における1回の塗布量は、溶剤および反応生成物を
揮発させろために制約され1例えば、直径1・Q u+
の線状導体を使用する場合には、塗料の塗布焼付操作を
少くとも8回以上繰り返す必要があるのに対し、本発明
方法では1回の被覆、塗布、照射プロセスで十分であり
、この点も本発明の利点である。本発明方法で得られた
絶縁電線は、その耐熱性の尺度である熱軟化温度および
機械的強さが、溶剤タイプの塗料を用いて製造した従来
方法による絶縁直線とほぼ同等である。Therefore, it is most preferable that the steps of resin coating, monomer application, and radiation irradiation are performed continuously. In conventional manufacturing methods that use solvents, the amount of one coating in the coating and baking process for film formation is limited in order to volatilize the solvent and reaction products.
When using a linear conductor of This is also an advantage of the present invention. The insulated wire obtained by the method of the present invention has a thermal softening temperature, which is a measure of its heat resistance, and mechanical strength, which are almost the same as those of an insulated wire produced by the conventional method using a solvent-based paint.
次に本発明を実施例および比較例について説明する。こ
れらの例で得られた絶縁電線の緒特性(可撓性、耐薬品
性、耐摩耗性、絶縁値wX電圧、耐クレージング性)の
測定HJI8−C8210に規定される試験法に準じて
行った。絶縁′電線の熱軟化温度の測定はJI日−08
008に規定される試験法の18・1・l父差法(2)
昇温法に準じて行った(荷重は800)とした)、すな
わち同−巻わくから長さl0CIIの試験片2枚をとり
、これを直角に重ねて平板上に置き、重ね部分の上に5
001のおもりを載せ、そのまま恒温槽に入れ、試験片
の導体間に50〜f30 Hzの正弦波に近い波形を有
する交流電圧】00■を印加し、その状態で約2°C/
分の割合で温度を上昇させ、短絡する温度を測定した。Next, the present invention will be explained with reference to Examples and Comparative Examples. Measurement of the properties (flexibility, chemical resistance, abrasion resistance, insulation value w x voltage, crazing resistance) of the insulated wires obtained in these examples was carried out in accordance with the test method specified in HJI8-C8210. . Measurement of thermal softening temperature of insulated wires is JI day-08
18.1.l paternal difference method (2) of the test method prescribed in 008
It was carried out according to the heating method (the load was 800), that is, two test pieces of length l0CII were taken from the same winding frame, stacked at right angles, placed on a flat plate, and placed on the overlapped part. 5
A weight of 001 was placed on the test piece, the test piece was placed in a constant temperature oven, and an AC voltage of 50 to f30 Hz with a waveform close to a sine wave was applied between the conductors of the test piece.
The temperature was increased at a rate of 100 min and the temperature at which a short circuit occurred was measured.
ゲル分率は絶縁電線から樹脂皮膜を剥ぎ取り、この皮膜
を90°Cのm−クレゾール中で加熱した場合の不溶残
分の重量%を求めることにより測定した。The gel fraction was measured by peeling off the resin film from the insulated wire and heating the film in m-cresol at 90°C to determine the weight % of the insoluble residue.
実施例 1
;(Omuφの押出機ナイロンスクリュー固定ダイニッ
プルを使用したクロスヘッドを使用して0.85關φの
銅線上に250’Cの押出温度でナイロン6畳10樹脂
(東洋レーヨン(株)製、商品名:アミランCM2O0
1,融点2]7°C)を押出し、厚さ28〜32μの塗
膜を銅線上に形成した。この塗膜に噴霧器によりトリア
リルシアヌレート(日本1 化成(株)製)を吹
き付けたのち、この塗装線に電子線を85 Mrad照
射して絶縁電線を得た。なお、製造法度は線速200m
/分とした。Example 1; Nylon 6 tatami 10 resin (Toyo Rayon Co., Ltd.) was extruded onto a 0.85 mm φ copper wire at an extrusion temperature of 250'C using a crosshead using an Omuφ extruder with a nylon screw fixing die nipple. Manufactured by, product name: Amilan CM2O0
1, melting point 2]7°C) was extruded to form a coating film with a thickness of 28 to 32 μm on a copper wire. After spraying triallyl cyanurate (manufactured by Nippon 1 Kasei Co., Ltd.) onto this coating film using a sprayer, the coated wire was irradiated with an electron beam at 85 Mrad to obtain an insulated wire. In addition, the manufacturing speed is 200m
/ minute.
(11)
比較例 ]
樹脂塗装線にトリアリルシアヌレートを吹き付けなかっ
た点を除き、実施例1と同様にして絶縁電線を得た。(11) Comparative Example] An insulated wire was obtained in the same manner as in Example 1, except that triallyl cyanurate was not sprayed onto the resin-coated wire.
比較例 2
樹脂塗装線にトリアリルシアヌレートの吹キ付けおよび
電子線照射を行わず、ダイで絞って得た塗装線を直ちに
水冷した点を除き、実施例1と同様にして絶縁電線を得
た。Comparative Example 2 An insulated wire was obtained in the same manner as in Example 1, except that the resin-coated wire was not sprayed with triallyl cyanurate or irradiated with an electron beam, and the coated wire obtained by squeezing with a die was immediately cooled with water. Ta.
実施例 2
樹脂塗装線にトリアリルシアヌレートの代すにトリス(
2−ヒドロキシエチル)インシアヌル酸のアクリル酸エ
ステル(日立化成(株)製)を使用した点を除き、実施
例1と同様な条件で絶縁電線を得た。Example 2 Tris(
An insulated wire was obtained under the same conditions as in Example 1, except that acrylic acid ester of 2-hydroxyethyl)incyanuric acid (manufactured by Hitachi Chemical Co., Ltd.) was used.
実施例 8
樹脂塗装線にトリアリルシアヌレートの代すにトリメチ
ロールプロパントリメタクリレート(新中村化学工業(
株)#)を使用した点を除き、実施例1と同様な条件で
絶縁電線を得た。Example 8 Trimethylolpropane trimethacrylate (Shin Nakamura Chemical Co., Ltd.) was used instead of triallyl cyanurate on the resin coating line.
An insulated wire was obtained under the same conditions as in Example 1, except that #) was used.
21
実施例 4
樹脂塗装線にトリアリルシアヌレートの代りにジエチレ
ングリコールジアクリレート(新中村化学工業(株)製
)を使用した点を除き、実施例】と同様な条件で絶縁′
ぼ線を得た。21 Example 4 Insulation was carried out under the same conditions as in Example, except that diethylene glycol diacrylate (manufactured by Shin-Nakamura Chemical Industry Co., Ltd.) was used instead of triallyl cyanurate for the resin-coated wire.
I got a blur.
実施例 5
樹脂塗装線にトリアリルシアヌレートの代りに2.2′
−ビス(4−メタクリロキシ−ジェトキシフェニル)プ
ロパン(新中村化学工業(株)製)を使用した点を除き
、実施例】と同様な条件で絶縁電線を得た。Example 5 2.2' instead of triallyl cyanurate on the resin coating line
An insulated wire was obtained under the same conditions as in Example except that -bis(4-methacryloxy-jethoxyphenyl)propane (manufactured by Shin-Nakamura Chemical Industries, Ltd.) was used.
実施例 6
ナイロン6・10樹脂の代りにナイロン6樹脂(東洋レ
ーヨン(株)製、商品名:アミラン(M1021、融点
215’C)を使用した点を除き、実施例]と同様な条
件で絶縁電線を得た。Example 6 Insulation was carried out under the same conditions as in Example except that nylon 6 resin (manufactured by Toyo Rayon Co., Ltd., trade name: Amilan (M1021, melting point 215'C) was used instead of nylon 6/10 resin). Got the wire.
実施例 7
ナイロン6・】0樹脂の代りにナイロン6・6樹脂(東
洋レーヨン(株)製、商品名二アミランCM8001、
融点259℃)を使用した点と押出温度を270°Cに
変更した点とを除き、実施例1と同様な条件で絶縁電線
を得た。Example 7 Nylon 6.6 resin (manufactured by Toyo Rayon Co., Ltd., trade name Nimiran CM8001,
An insulated wire was obtained under the same conditions as in Example 1, except that the extrusion temperature was changed to 270°C (melting point: 259°C) and the extrusion temperature was changed to 270°C.
実施例 8 ナイロン6・10樹脂(東洋レーヨン(株)製。Example 8 Nylon 6/10 resin (manufactured by Toyo Rayon Co., Ltd.).
商品名:アミランC’M2O0]、融点2】7°C)を
240 ”Cで加熱溶融し、この溶融樹脂を入れた僧の
中に直径0.851111の銅線を通し、僧からの出口
をダイで絞って厚さ28〜82μの塗膜を銅線上に形成
した。この塗膜に予めトリアリルシアヌレート(日本化
成(株)製)100重針部に対してベンジルメチルケタ
ール(和元純薬(株)製) 8M債部を溶解した溶液を
噴霧器により吹き付けたのち、この塗装線に入力密度8
0Wの高圧水銀灯(2KW ) 2本を使用して均一に
紫外線が肖るようにした装置を使用し、線源と′1線と
の間の距離をl0GII+としかつ線速20rnZ分に
おいて紫外線を照射した後、巻取った。Product name: Amilan C'M2O0], melting point 2]7°C) was heated and melted at 240 ''C, a copper wire with a diameter of 0.851111 was passed through the molten resin, and the outlet from the molten resin was passed through the molten resin. A coating film with a thickness of 28 to 82μ was formed on the copper wire by squeezing with a die.Benzyl methyl ketal (Wamoto Jun After spraying a solution containing 8M bond part (manufactured by Yakuhin Co., Ltd.) using a sprayer, the input density was 8 on this painted line.
Using a device that uses two 0W high-pressure mercury lamps (2KW) to uniformly emit ultraviolet rays, irradiate ultraviolet rays at a linear velocity of 20rnZ with a distance between the source and the '1 line of 10GII+. After that, I rolled it up.
上述の実施例および比較例で得た絶縁電線について、ゲ
ル分率、熱軟化温度および電線の特性(可撓性、耐薬品
性、耐摩耗性、絶縁破壊電圧。Regarding the insulated wires obtained in the above examples and comparative examples, gel fraction, thermal softening temperature, and wire characteristics (flexibility, chemical resistance, abrasion resistance, dielectric breakdown voltage) were determined.
耐クレージング性)を測定し、その結果を第1表に示し
た。Crazing resistance) was measured and the results are shown in Table 1.
第】表から次のことがわかる。The following can be seen from the table.
熱軟化温度に関しては、用いるポリアミド系樹脂の種類
および多官能性不飽和単量体の種類が変っても300〜
310°Cの範囲にあり、従って従来の溶剤タイプの塗
料を用いて製造した絶縁電線のs o o ”cと同等
以上である。多官能性不飽相単匍・体力吹き付けを行わ
ずに電子線照射による架橋を行ったもの(比較例1)は
280℃で、従来の溶剤タイプの塗料を用いて製造した
絶縁電線より低く、問題がある。また、多官能性不飽和
単量体の吹き付けおよび電子線照射による架橋を行わな
いもの(比較例2)は190°Cとさらに低く、マグネ
ットワイヤ用絶縁直線としての特性を満たしていない。Regarding the thermal softening temperature, the temperature is 300 to
310°C, and is therefore equivalent to or higher than that of insulated wire manufactured using conventional solvent-based paints. The wire crosslinked by radiation irradiation (Comparative Example 1) has a temperature of 280°C, which is lower than the insulated wire manufactured using conventional solvent-type paint, which is problematic. In addition, the temperature was even lower at 190° C. for one without crosslinking by electron beam irradiation (Comparative Example 2), which did not satisfy the characteristics as an insulated straight line for magnet wires.
ゲル分率に関しては、ポリアミド系樹脂の種類および多
1能性不飽和曝着体の種類が変っても90〜98%の範
囲にありほぼ同一で、多官能性不飽和単量体の吹き付け
を行わずに電子線照射による架橋を行ったもの(比較例
1)の90%とほぼ同等の値である。放射線照射による
架橋を行わ 17
第2表に示す。Regarding the gel fraction, it is almost the same in the range of 90 to 98% even if the type of polyamide resin and the type of polyfunctional unsaturated spraying material are changed, and it is almost the same even if the type of polyamide resin and the type of polyfunctional unsaturated monomer are changed. This value is approximately the same as 90% of the crosslinking without crosslinking by electron beam irradiation (Comparative Example 1). Crosslinking was carried out by radiation irradiation.17 The results are shown in Table 2.
なかったもの(比較例2)は当然のことながら0%であ
った。Of course, in the case where it was not present (Comparative Example 2), it was 0%.
電線の特性に関しては、ポリアミド系樹脂の種類および
多官能性不飽和単量体の種類または放射線の種類が変っ
てもほぼ同一であり、かつマグネットワイヤ用絶縁′1
線としての特性を満たしているが、電子線架橋単独のも
の(比較例])および放射線架橋も行わなかったもの(
比較例2)はマグネットワイヤ用絶縁直線としての特性
を全く満たしていない。多官能性不飽和単量体を吹き付
けた後に電子線照射あるいは紫外線照射をして架橋した
ものは、電子線架橋単独い比較例1のものとゲル分率が
ほぼ同等であるにも拘らず、熱軟化温度、耐摩耗性のよ
うな機械的強さが高い。これは前者が後者より一層強園
な三次元構造をとるためと考えられる。The characteristics of the electric wire are almost the same even if the type of polyamide resin, the type of polyfunctional unsaturated monomer, or the type of radiation is changed;
Those that satisfy the characteristics as a beam but are only cross-linked with electron beams (comparative example)) and those that were not cross-linked with radiation (comparative examples)
Comparative Example 2) does not satisfy the characteristics at all as an insulated straight line for magnet wire. Although the gel fraction of the polyfunctional unsaturated monomer sprayed and then crosslinked by electron beam irradiation or ultraviolet irradiation was almost the same as that of Comparative Example 1, which was only electron beam crosslinked, High mechanical strength such as heat softening temperature and wear resistance. This is thought to be because the former has a more robust three-dimensional structure than the latter.
実施例 9
電子線の照射線量を第2表に示すように変えた点を除き
、実施例1と同様な条件で絶縁電線を得た。この絶縁電
線のゲル分率および熱軟化温度を(] 8 )
と考えられる。Example 9 Insulated wires were obtained under the same conditions as in Example 1, except that the electron beam irradiation dose was changed as shown in Table 2. The gel fraction and thermal softening temperature of this insulated wire are considered to be (] 8 ).
第 2 表
第2衣から、電子線の照射線量がOMradの時にはゲ
ル分率は0%であり熱軟化温度は200℃と低く、また
照射線量がa Mradの時にはゲル分率は15%であ
り熱軟化温度は2 ] 0 ”Cと低く、照射線量が不
足していることがわかる。照射線量が] OMradに
近すけば照射線量が増大して6゜Mradに近ずくまで
ゲル分率および熱軟化温度ともに適当である。照射I@
讐がさらに太きく60Mradになると、ゲル分率およ
び熱軟化温度はともに若干低下する。これは硬化が過度
になるため特許出願人 古河電気工業株式会社手続
補正書
昭和57 年 6月16日
1、事件の表示
昭和57年特 許 願第4・5508 号2、発明の名
称
絶縁電線の製造方法
3、補正をする者
事件との関係 特許出願人
(529) 古河電気工業株式会社
電話(581) 2241番(代表)
5゜
6、補正の対象 明細書の発明の詳細な説明の欄7、補
正の内容 (別紙の通り)
■、明細書第18頁第14行の「アミラン(Mlを「ア
ミランOMJに訂正する。From Table 2, Table 2 shows that when the electron beam irradiation dose is OMrad, the gel fraction is 0% and the thermal softening temperature is as low as 200°C, and when the irradiation dose is a Mrad, the gel fraction is 15%. The thermal softening temperature is as low as 2]0''C, indicating that the irradiation dose is insufficient.As the irradiation dose approaches ]OMrad, the irradiation dose increases until the gel fraction and heat approach 6°Mrad. Both softening temperatures are appropriate.Irradiation I@
When the fiber becomes thicker and becomes 60 Mrad, both the gel fraction and the heat softening temperature decrease slightly. This will cause excessive hardening, and the patent applicant: Furukawa Electric Co., Ltd. Procedural Amendment June 16, 1982 1, Case Description 1982 Patent Application No. 4.5508 2, Title of Invention: Insulated Wire Manufacturing method 3, relationship with the case of the person making the amendment Patent applicant (529) Furukawa Electric Co., Ltd. Telephone number (581) 2241 (representative) 5゜6, Subject of amendment Detailed explanation of the invention in the specification Column 7 , Contents of the amendment (as shown in the attached sheet) ■ Correct ``Amilan (Ml) to ``Amilan OMJ'' on page 18, line 14 of the specification.
2同第t4−1第11行の「ペンシルメチルケタール(
和光純薬(株)製)」を「ベンジルジメチルケタール(
日本千葉ガイギー(株)製」に訂正する。2 “Pencil methyl ketal (
manufactured by Wako Pure Chemical Industries, Ltd.)” and “benzyl dimethyl ketal (manufactured by Wako Pure Chemical Industries, Ltd.)”.
Corrected to ``Made by Chiba Geigy, Japan.''
代理人弁理士 杉 村 暁 秀 外1名 (g・5Representative Patent Attorney: Hide Sugimura 1 other person (g・5
Claims (1)
るに当り、 fal 前記ポリアミド系樹脂を線状導体上に被覆し
、 fbl この樹脂被覆層の表面に多官能性不飽和単量
体を塗布し、 fcl この被覆層に放射線を照射して前記被覆層の
ゲル分率が20%以上になるまで架橋させる ことを特徴とする絶縁電線の製造方法。 λ 放射線として電子線を用いる特許請求の範囲第1項
記載の製造方法。 & 多官能性不飽和単産体として0・5〜5%重量%の
光開始剤を添」した多官能性不飽和単量体を用い、放射
線として紫外線を用いる特許請求の範囲第1項記載の製
造方法。[Scope of Claims] L In manufacturing an insulated wire temporarily covered with a polyamide resin, fal the polyamide resin is coated on a linear conductor, fbl a polyfunctional unsaturated layer is coated on the surface of the resin coating layer. A method for producing an insulated wire, comprising applying a monomer, and irradiating the coating layer with radiation to crosslink the coating layer until the gel fraction of the coating layer becomes 20% or more. The manufacturing method according to claim 1, in which an electron beam is used as the λ radiation. & The method according to claim 1, in which a polyfunctional unsaturated monomer to which 0.5 to 5% by weight of a photoinitiator is added is used as a polyfunctional unsaturated monomer, and ultraviolet rays are used as radiation. Production method.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4550882A JPS58163107A (en) | 1982-03-24 | 1982-03-24 | Method of producing insulated wire |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4550882A JPS58163107A (en) | 1982-03-24 | 1982-03-24 | Method of producing insulated wire |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS58163107A true JPS58163107A (en) | 1983-09-27 |
Family
ID=12721343
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4550882A Pending JPS58163107A (en) | 1982-03-24 | 1982-03-24 | Method of producing insulated wire |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58163107A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001250431A (en) * | 1999-12-27 | 2001-09-14 | Furukawa Electric Co Ltd:The | Insulated wire |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5480580A (en) * | 1977-12-03 | 1979-06-27 | Beck & Co Ag Dr | Method of producing insulated wire |
JPS579003A (en) * | 1980-06-17 | 1982-01-18 | Sumitomo Electric Industries | Double insulated wire |
-
1982
- 1982-03-24 JP JP4550882A patent/JPS58163107A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5480580A (en) * | 1977-12-03 | 1979-06-27 | Beck & Co Ag Dr | Method of producing insulated wire |
JPS579003A (en) * | 1980-06-17 | 1982-01-18 | Sumitomo Electric Industries | Double insulated wire |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001250431A (en) * | 1999-12-27 | 2001-09-14 | Furukawa Electric Co Ltd:The | Insulated wire |
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