JPH0625327Y2 - Composite continuous molded product of fiber reinforced resin and polyolefin - Google Patents
Composite continuous molded product of fiber reinforced resin and polyolefinInfo
- Publication number
- JPH0625327Y2 JPH0625327Y2 JP1988101365U JP10136588U JPH0625327Y2 JP H0625327 Y2 JPH0625327 Y2 JP H0625327Y2 JP 1988101365 U JP1988101365 U JP 1988101365U JP 10136588 U JP10136588 U JP 10136588U JP H0625327 Y2 JPH0625327 Y2 JP H0625327Y2
- Authority
- JP
- Japan
- Prior art keywords
- polyolefin
- adhesive
- layer
- molded product
- corona discharge
- 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 - Lifetime
Links
- 229920000098 polyolefin Polymers 0.000 title claims description 15
- 229920005989 resin Polymers 0.000 title claims description 9
- 239000011347 resin Substances 0.000 title claims description 9
- 239000000835 fiber Substances 0.000 title claims description 6
- 239000002131 composite material Substances 0.000 title claims description 5
- 239000011247 coating layer Substances 0.000 claims description 20
- 239000012790 adhesive layer Substances 0.000 claims description 12
- 239000010410 layer Substances 0.000 claims description 12
- 229920001038 ethylene copolymer Polymers 0.000 claims description 7
- 239000004840 adhesive resin Substances 0.000 claims description 6
- 229920006223 adhesive resin Polymers 0.000 claims description 6
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 3
- 229920001897 terpolymer Polymers 0.000 claims description 3
- QHZOMAXECYYXGP-UHFFFAOYSA-N ethene;prop-2-enoic acid Chemical compound C=C.OC(=O)C=C QHZOMAXECYYXGP-UHFFFAOYSA-N 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 description 19
- 239000000853 adhesive Substances 0.000 description 18
- 238000003851 corona treatment Methods 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 8
- 239000013307 optical fiber Substances 0.000 description 8
- 208000028659 discharge Diseases 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000003365 glass fiber Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 229920006337 unsaturated polyester resin Polymers 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- -1 acrylic ester Chemical class 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は、光ファイバケーブルの要素として用いられ、
光ファイバを保護するための連続成形物、更に詳しくは
繊維強化樹脂とポリオレフィンとの複合連続成形物に関
する。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is used as an element of an optical fiber cable,
The present invention relates to a continuous molded product for protecting an optical fiber, more specifically, a composite continuous molded product of a fiber reinforced resin and a polyolefin.
（従来の技術） 一般に、この種の連続成形物としては、単鋼線，撚鋼
線，繊維強化樹脂長尺体（以下、ＦＲＰ長尺体と略す）
などを抗張力線とし、その外周に熱可塑性樹脂による円
筒状の被覆層を施してなるもの、更に該被覆層に光ファ
イバ装着用の溝を螺旋状に形成してなるものが公知であ
る。(Prior Art) Generally, as a continuous molded product of this type, a single steel wire, a twisted steel wire, a fiber-reinforced resin elongated body (hereinafter, abbreviated as FRP elongated body).
It is known that a tensile strength wire is used as a tensile strength wire, and a cylindrical coating layer made of a thermoplastic resin is provided on the outer periphery of the tensile strength wire, and a groove for mounting an optical fiber is spirally formed on the coating layer.
（本考案が解決しようとする課題） このような連続成形物を要素とする光ファイバケーブル
は、種々の環境温度変化による抗張力線と被覆層との接
着界面破壊によって、抗張力線と被覆層が単独に挙動し
て光ファイバに応力が加わり、光ファイバの伝達損失を
増加せしめることがあった。前記抗張力線と被覆層との
接着界面破断は、抗張力線と被覆層との熱膨張係数の差
の大きさに比して抗張力線と被覆層の引張剪断接着強度
が小さいためであると思われる。(Problems to be solved by the present invention) In an optical fiber cable including such a continuous molded product as an element, the tensile strength wire and the coating layer are independently separated by the destruction of the adhesive interface between the tensile strength wire and the coating layer due to various environmental temperature changes. There was a case that the optical fiber behaved in the above condition and stress was applied to the optical fiber, which increased the transmission loss of the optical fiber. The adhesive interface rupture between the tensile strength line and the coating layer is considered to be because the tensile shear adhesive strength between the tensile strength line and the coating layer is smaller than the difference in thermal expansion coefficient between the tensile strength line and the coating layer. .
この問題点を解決するための手段として特開昭６１−１
７９４０８号公報には、鋼線と被覆層の間に鋼線との接
着性を有する熱可塑性樹脂を介在させ、鋼線と被覆層と
の接着性を向上せしめる方法が提供されている。しか
し、鋼線に代わりＦＲＰ長尺体を利用した場合において
は、顕著な接着効果を得ることができなかった。As means for solving this problem, JP-A-61-1
Japanese Patent Publication No. 79408 provides a method of improving the adhesiveness between a steel wire and a coating layer by interposing a thermoplastic resin having adhesiveness with the steel wire between the steel wire and the coating layer. However, when the FRP elongated body was used instead of the steel wire, a remarkable adhesive effect could not be obtained.
抗張力線としては、ガラス繊維を用いたＦＲＰ長尺体
が、機械的特性，軽量性，非電気伝導性，経済性，光フ
ァイバと近似した熱膨張係数など、特性を総合的にみた
場合に銅線等より優れており、近年ＦＲＰ長尺体と被覆
層との接着性の向上が切望されている。As a tensile strength wire, when a long FRP body made of glass fiber is used, the mechanical properties, light weight, non-electrical conductivity, economical efficiency, thermal expansion coefficient similar to that of optical fiber, etc. It is superior to wires and the like, and in recent years, improvement in the adhesiveness between the FRP elongated body and the coating layer has been earnestly desired.
（課題を解決するための手段） 本考案は、ＦＲＰ長尺体からなる抗張力線と、該抗張力
線の周上に施されるコロナ放電処理層と、該コロナ放電
処理層の直上に被覆されるエチレン・アクリル酸エステ
ル・無水マレイン酸三元共重合体からなるエチレン共重
合体接着性樹脂の接着層と、該接着層の直上に被覆され
るポリオレフィン被覆層とから構成されることを特徴と
する繊維強化樹脂とポリオレフィンとの複合連続成形物
を提供するものである。(Means for Solving the Problems) In the present invention, a tensile strength wire made of an FRP elongated body, a corona discharge treated layer provided on the circumference of the tensile strength wire, and a layer directly above the corona discharge treated layer are coated. An adhesive layer of an ethylene copolymer adhesive resin composed of an ethylene / acrylic acid ester / maleic anhydride terpolymer, and a polyolefin coating layer coated directly on the adhesive layer. A composite continuous molded product of a fiber reinforced resin and a polyolefin is provided.
本考案のＦＲＰ長尺体はガラス繊維，炭素繊維，芳香族
ポリアミド繊維などの強化繊維と不飽和ポリエステル樹
脂，エポキシ樹脂などの熱硬化性樹脂よりなり、光ケー
ブル用抗張力材としてはガラス繊維と不飽和ポリエステ
ル樹脂よりなるＦＲＰ長尺体が特に好ましく用いられ
る。さらに本考案の被覆層はポリオレフィンよりなり、
好ましくは高密度ポリエステルがあげられる。The FRP elongated body of the present invention comprises reinforcing fibers such as glass fiber, carbon fiber and aromatic polyamide fiber and thermosetting resin such as unsaturated polyester resin and epoxy resin. As a tensile strength material for optical cable, glass fiber and unsaturated A long FRP body made of polyester resin is particularly preferably used. Furthermore, the coating layer of the present invention is made of polyolefin,
High density polyester is preferable.
（実施例） 以下に本考案の実施例を図面に基づいて説明する。(Embodiment) An embodiment of the present invention will be described below with reference to the drawings.
まず、ガラス繊維と不飽和ポリエステル樹脂よりなる直
径１．６mmのＦＲＰ長尺体１を、直径約１５mmのロール
電極１８個を３００mmに渡り配列して成るコロナ放電処
理装置に線速１m/minにて送り込み、処理電圧１０KV，
処理電流４０mA，放電ギャップ２０mmの条件にてコロナ
放電処理を行った。実施例１としては、このコロナ放電
処理層２を持つＦＲＰ長尺体を用いてエチレン・アクリ
ル酸エステル・無水マレイン酸三元共重合体よりなるエ
チレン共重合体接着性樹脂と高密度ポリエチレン樹脂を
２層押出しにより、接着層３と被覆層４を有する構造と
した。尚、このときの接着層の厚さは約３０μｍとし
た。この連続成形物の接着強度をＦＲＰ長尺体１の被覆
層４からの引抜き強度として測定したところ４０．７kg
/cm2の接着強度が得られた。First, a 1.6 mm diameter FRP elongated body 1 made of glass fiber and unsaturated polyester resin was used in a corona discharge treatment device in which 18 roll electrodes having a diameter of about 15 mm were arranged over 300 mm at a linear velocity of 1 m / min. , Processing voltage 10KV,
Corona discharge treatment was performed under the conditions of a treatment current of 40 mA and a discharge gap of 20 mm. In Example 1, an FRP long body having this corona discharge treated layer 2 was used to prepare an ethylene copolymer adhesive resin composed of an ethylene / acrylic ester / maleic anhydride terpolymer and a high-density polyethylene resin. The structure having the adhesive layer 3 and the coating layer 4 was formed by two-layer extrusion. The thickness of the adhesive layer at this time was about 30 μm. The adhesive strength of this continuous molded product was measured as the pull-out strength from the coating layer 4 of the FRP elongated body 1, and it was 40.7 kg.
An adhesive strength of / cm 2 was obtained.
次に、比較例１にてコロナ放電処理が施されていない直
径１．６mmのＦＲＰ長尺体を用いて、実施例１と同様に
接着層及び被覆層を有する連続成形物を作成し、この接
着強度を測定したところ２３．２kg/cm2であった。さら
に比較の為に、比較例２及び３として上記エチレン共重
合体接着性樹脂を用いない場合のＦＲＰ長尺体と被覆層
との接着強度を、比較例２ではコロナ放電処理層を含む
構造とした場合を、比較例３ではコロナ放電処理層を含
まない構造とした場合のそれぞれについて求めた。その
結果、比較例３では１．５kg/cm2，比較例２で４．７kg
/cm2と低接着力のものしか得られなかったが、それでも
コロナ放電処理層を含むものでは接着強度が向上してお
り、コロナ放電処理が接着力の改善に効果があることが
示されている。Next, a continuous molded product having an adhesive layer and a coating layer was prepared in the same manner as in Example 1 by using the FRP elongated body having a diameter of 1.6 mm which was not subjected to corona discharge treatment in Comparative Example 1. When the adhesive strength was measured, it was 23.2 kg / cm 2 . Further, for comparison, as Comparative Examples 2 and 3, the adhesive strength between the FRP elongated body and the coating layer in the case where the above ethylene copolymer adhesive resin is not used is shown in Comparative Example 2 and the structure including the corona discharge treated layer. In Comparative Example 3, the above cases were determined for each structure having no corona discharge treated layer. As a result, Comparative Example 3 was 1.5 kg / cm 2 , and Comparative Example 2 was 4.7 kg.
Although only low adhesive strength of / cm 2 was obtained, the adhesive strength was still improved in the case of containing the corona discharge treatment layer, which indicates that corona discharge treatment is effective in improving the adhesive strength. There is.
本考案のＦＲＰ長尺体にコロナ放電処理を施すことによ
り、該ＦＲＰ長尺体とエチレン共重合体との接着強度が
向上したものが得られた。これは空気中でのコロナ放電
処理によりオゾンが生成し、このオゾンがＦＲＰ長尺体
表面に吸着したりＦＲＰ長尺体表面と化学反応を起こ
し、カルボニル基やカルボキシル基が生成し、これがエ
チレン共重合体との接着力を高めたと考えられる。さら
にポリオレフィン被覆に際しては該ポリオレフィンとの
相溶性に優れ極性の高いエチレン共重合体接着性樹脂と
を同時押出しにより一体的に成形することにより接着層
とポリオレフィン被覆を形成した。これによりＦＲＰ長
尺体とポリオレフィン被覆との接着はコロナ放電処理層
と接着層との接着におきかえられ高引張剪断接着強度の
接着がなされたものである。By subjecting the FRP elongated body of the present invention to corona discharge treatment, a product having improved adhesive strength between the FRP elongated body and the ethylene copolymer was obtained. This is because ozone is generated by corona discharge treatment in the air, and this ozone is adsorbed on the surface of the FRP long body or chemically reacts with the surface of the FRP long body to form a carbonyl group or a carboxyl group, which is It is considered that the adhesive strength with the polymer was increased. Further, in coating the polyolefin, an adhesive layer and a polyolefin coating were formed by integrally molding an ethylene copolymer adhesive resin having excellent compatibility with the polyolefin and having high polarity by coextrusion. As a result, the adhesion between the FRP elongated body and the polyolefin coating is replaced with the adhesion between the corona discharge treatment layer and the adhesive layer, and the adhesion with high tensile shear adhesive strength is achieved.
尚、下表は実施例１と比較例１，２，３の接着強度を比
較したものである。The following table compares the adhesive strengths of Example 1 and Comparative Examples 1, 2, and 3.
また、実施例及び比較例における接着強度の測定方法
は、長さ約１５０mmの連続成形物の端末から約１１５mm
の長さに渡り被覆層及び接着層を取除いた３本の試料を
用意し、該試料の露出したＦＲＰ長尺体と、該試料の被
覆層のみを保持し、引張試験機を用いて毎分５mmの速さ
にて試験を行った。接着強度は該試料３本の引抜き強度
の平均値を示したものである。In addition, the measuring method of the adhesive strength in Examples and Comparative Examples is about 115 mm from the end of the continuous molded product having a length of about 150 mm.
3 samples were prepared by removing the coating layer and the adhesive layer over the length of the sample, and only the exposed FRP elongated body of the sample and the coating layer of the sample were held, and the tensile tester was used for each test. The test was carried out at a speed of 5 mm. The adhesive strength is an average of pull-out strengths of the three samples.
（効果） 以上実施例に示した様に、ポリオレフィンとの相溶性の
高いエチレン共重合体接着性樹脂等を接着層として用い
ることにより、ＦＲＰ長尺体とポリオレフィンとの接着
力が向上するが、さらにＦＲＰ長尺体表面にコロナ放電
処理することにより３０kg/cm2以上の接着強度が得られ
た。コロナ放電処理は小さな装置にて簡単に行なえ、処
理速度も早く、装置自体も安価であり、製造ラインに容
易に組み込むことができる。その為ＦＲＰ長尺体を連続
的にコロナ放電処理しながら、ポリオレフィンを被覆す
ることが可能であり、簡単で容易に効果を得ることがで
きる。 (Effects) As shown in the above examples, by using an ethylene copolymer adhesive resin or the like having high compatibility with polyolefin as the adhesive layer, the adhesive force between the FRP long body and the polyolefin is improved, Further, by subjecting the surface of the FRP elongated body to corona discharge treatment, an adhesive strength of 30 kg / cm 2 or more was obtained. The corona discharge treatment can be easily performed with a small apparatus, the processing speed is fast, the apparatus itself is inexpensive, and it can be easily incorporated in the production line. Therefore, it is possible to coat the polyolefin while continuously treating the FRP elongated body with corona discharge, and it is possible to obtain the effect easily and easily.
図は本考案の繊維強化樹脂とポリオレフィンとの複合連
続成形物の断面図を示す。図中１はＦＲＰ長尺体、２は
コロナ放電処理層、３は接着層、４は被覆層である。The figure shows a cross-sectional view of a composite continuous molded product of a fiber reinforced resin and a polyolefin of the present invention. In the figure, 1 is a long FRP body, 2 is a corona discharge treatment layer, 3 is an adhesive layer, and 4 is a coating layer.
Claims (1)
該抗張力線の周上に施されるコロナ放電処理層と、該コ
ロナ放電処理層の直上に被覆されるエチレン・アクリル
酸エステル・無水マレイン酸三元共重合体からなるエチ
レン共重合体接着性樹脂の接着層と、該接着層の直上に
被覆されるポリオレフィン被覆層とから構成されること
を特徴とする繊維強化樹脂とポリオレフィンとの複合連
続成形物。1. A tensile strength wire comprising a long fiber-reinforced resin body,
A corona discharge treated layer provided on the circumference of the tensile strength line, and an ethylene copolymer adhesive resin composed of an ethylene / acrylic acid ester / maleic anhydride terpolymer coated directly on the corona discharge treated layer. 7. A composite continuous molded product of a fiber reinforced resin and a polyolefin, which comprises the adhesive layer of 1. and a polyolefin coating layer coated directly on the adhesive layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988101365U JPH0625327Y2 (en) | 1988-07-29 | 1988-07-29 | Composite continuous molded product of fiber reinforced resin and polyolefin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988101365U JPH0625327Y2 (en) | 1988-07-29 | 1988-07-29 | Composite continuous molded product of fiber reinforced resin and polyolefin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0222827U JPH0222827U (en) | 1990-02-15 |
| JPH0625327Y2 true JPH0625327Y2 (en) | 1994-07-06 |
Family
ID=31330290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988101365U Expired - Lifetime JPH0625327Y2 (en) | 1988-07-29 | 1988-07-29 | Composite continuous molded product of fiber reinforced resin and polyolefin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0625327Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021170096A (en) * | 2020-04-17 | 2021-10-28 | 古河電気工業株式会社 | Fiber optic cable |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6396519U (en) * | 1986-12-11 | 1988-06-22 |
-
1988
- 1988-07-29 JP JP1988101365U patent/JPH0625327Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021170096A (en) * | 2020-04-17 | 2021-10-28 | 古河電気工業株式会社 | Fiber optic cable |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0222827U (en) | 1990-02-15 |
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