JPS61174418A - Polyvinylidene fluoride based monofilament - Google Patents

Polyvinylidene fluoride based monofilament

Info

Publication number
JPS61174418A
JPS61174418A JP1333385A JP1333385A JPS61174418A JP S61174418 A JPS61174418 A JP S61174418A JP 1333385 A JP1333385 A JP 1333385A JP 1333385 A JP1333385 A JP 1333385A JP S61174418 A JPS61174418 A JP S61174418A
Authority
JP
Japan
Prior art keywords
pvdf
polyvinylidene fluoride
monofilaments
monofilament
metal soap
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
Application number
JP1333385A
Other languages
Japanese (ja)
Inventor
Osami Shinonome
東雲 修身
Katsumi Nakagawa
克己 中川
Katsuyuki Toma
当麻 克行
Hisashirou Eguchi
寿史朗 江口
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.)
Unitika Ltd
Original Assignee
Unitika 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 Unitika Ltd filed Critical Unitika Ltd
Priority to JP1333385A priority Critical patent/JPS61174418A/en
Publication of JPS61174418A publication Critical patent/JPS61174418A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:Polyvinylidene fluoride (PVDF) based monofilaments, consisting of a composition obtained by incorporating a metal soap with a polyvinylidene fluoride (PVDF) based polymer, having a high knot strength, and suitable for finishing materials such as fishing lines, fishing nets, etc. and filter cloth, brush, etc. CONSTITUTION:Polyvinylidene fluoride (PVDF) based monofilaments obtained by incorporating PVDF based polymer with preferably 0.02-0.3wt% metal soap, preferably expressed by the formula (RCOO)nM [R is 7-13C (substituted) hydrocarbon; M is Mg, Ca, Ba, Al, Zn, Cd, Sn or Sb; n is an integer equal to the valence of the metal atom], extruding the resultant mixture through a melt spinning machine preferably at 240-290 deg.C, cooling and solidifying the extruded monofilaments, and drawing the solidified monofilaments in many stages.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は結節強度の高いポリ弗化ビニリデン(PVDF
という)系モノフィラメントに関するものである。
Detailed Description of the Invention (Industrial Application Field) The present invention utilizes polyvinylidene fluoride (PVDF) with high knot strength.
This is related to monofilaments.

(従来の技術) pvopは比重が大きく、屈折率が水に近いため水中で
見えに<<、吸水止が低く1表面張力が小さいので水弾
きがよく、耐候性に優れ、しかもその曲げヤング率が適
度であるため、釣糸や漁網用のモノフィラメントとして
好適であり(特公昭44−5359号参照)、工業化さ
れている。しかしながらナイロンモノフィラメントに比
し、結節強度が低く。
(Conventional technology) PVOP has a high specific gravity and a refractive index close to that of water, so it is invisible underwater.It has low water absorption and low surface tension, so it repels water well, has excellent weather resistance, and has a low bending Young's modulus. Since it has a moderate amount of carbon, it is suitable as a monofilament for fishing lines and fishing nets (see Japanese Patent Publication No. 5359/1983), and has been industrialized. However, the knot strength is lower than that of nylon monofilament.

用途に制限を受けているのが実情である。The reality is that there are restrictions on its uses.

このため以前から結節強度の高いPVDFモノフィラメ
ントを得るべく多くの検討がなされている。
For this reason, many studies have been made to obtain PVDF monofilaments with high knot strength.

例えば、特公昭51−32667号公報にはポリメチル
メタクリレートを配合したPVDFから高結節強度のモ
ノフィラメントが得られる旨記載されているが。
For example, Japanese Patent Publication No. 51-32667 describes that a monofilament with high knot strength can be obtained from PVDF blended with polymethyl methacrylate.

満足すべき水準には達していない。It has not reached a satisfactory level.

(発明が解決しようとする問題点) 本発明は、高結節強度で、操業性よく製造することので
きるPVDF系モノフィラメントを提供することを技術
的課題とするものである。
(Problems to be Solved by the Invention) The technical object of the present invention is to provide a PVDF monofilament that has high knot strength and can be manufactured with good operability.

(問題点を解決するための手段) 本発明は上記課題を解決するもので、 PVDF系重合
体に金属石けんを配合した組成物で構成されていること
を特徴とするPVDF系モノフィラメントを要旨とする
ものである。
(Means for Solving the Problems) The present invention solves the above problems, and its gist is a PVDF monofilament characterized by being composed of a composition in which a metal soap is blended with a PVDF polymer. It is something.

本発明において、 PVDF系重合体としてはPv叶ホ
モポリマーのほか、弗化ビニリデンを主成分としこれに
テトラフルオロエチレン、モノクロロトリフルオロエチ
レン、弗化ビニル、ヘキサフルオロプロピレン、パーフ
ルオロイソプロポキシエチレンなどを共重合成分とした
PVDF系コポリマーが用いられ、これらは混合物とし
て用いてもよい。
In the present invention, in addition to Pv homopolymer, the PVDF-based polymer includes vinylidene fluoride as a main component, and tetrafluoroethylene, monochlorotrifluoroethylene, vinyl fluoride, hexafluoropropylene, perfluoroisopropoxyethylene, etc. A PVDF copolymer is used as a copolymer component, and these may be used as a mixture.

そして、十分な強度特性を発揮させるためには固有粘度
(ジメチルホルムアミド中で、30℃で測定)が0.9
〜1.4.好ましくは1.0〜1.3のものを用いるこ
とが望ましい。
In order to exhibit sufficient strength properties, the intrinsic viscosity (measured in dimethylformamide at 30°C) must be 0.9.
~1.4. Preferably, it is desirable to use one with a value of 1.0 to 1.3.

次に1本発明における金属石けんとしては次の−r式で
表される化合物が好ましく用いられる。
Next, as the metal soap in the present invention, a compound represented by the following formula -r is preferably used.

(RCOO)、M 〔Rは炭素原子数7〜30の炭化水素基(ハロゲン原子
、水酸基などの置換基を有していてもよい。)MはMg
+Ca 、Ba 、ACZn 、Cd 、Sn及びPb
から選ばれた金属原子、nは金属原子の原子価と等しい
整数を示す。〕 特に好適な金属石けんとしては、ステアリン酸又はパル
ミチン酸のカルシウム塩、バリウム塩及び鉛塩があげら
れる。
(RCOO), M [R is a hydrocarbon group having 7 to 30 carbon atoms (may have a substituent such as a halogen atom or a hydroxyl group) M is Mg
+Ca, Ba, ACZn, Cd, Sn and Pb
A metal atom selected from n represents an integer equal to the valence of the metal atom. Particularly suitable metal soaps include calcium, barium and lead salts of stearic acid or palmitic acid.

金属石けんの配合量は微量でよく1通常1組成物の0.
01〜0.5重量%、好ましくは0.02〜0.3重量
%である。
The amount of metal soap to be blended may be very small, usually 0.00% per composition.
01-0.5% by weight, preferably 0.02-0.3% by weight.

本発明のPVDF系モノフィラメントは、常法によって
製造することができる。すなわち、 PVDF系重合体
と金属石けんとを所定の割合で動的又は静的混合し、溶
融紡糸機を用いて、230〜300’C,好ましくは2
40 〜290℃の温度で紡出し、冷却固化後、120
〜180℃の液体又は気体浴中で4〜6倍に第1段延伸
し2次いで140 〜200℃の気体又は液体浴中で全
延伸倍率が5〜7倍となるように第2段以降の延伸をし
、必要に応じてさらに熱処理する方法である。
The PVDF monofilament of the present invention can be produced by a conventional method. That is, a PVDF polymer and a metal soap are mixed dynamically or statically in a predetermined ratio, and heated to 230 to 300'C, preferably 2
Spun at a temperature of 40 to 290℃, cooled and solidified, 120℃
The first stage is stretched 4 to 6 times in a liquid or gas bath at ~180°C, and then the second and subsequent stages are stretched in a gas or liquid bath at 140 to 200°C so that the total stretching ratio is 5 to 7 times. This method involves stretching and further heat treatment if necessary.

なお1本発明のモノフィラメントには熱安定剤着色剤、
抗酸化剤、可望剤等の添加側を含有させてもよいことは
いうまでもない。
Note that the monofilament of the present invention contains a heat stabilizer colorant,
It goes without saying that additives such as antioxidants and desensitizers may also be included.

本発明のモノフィラメントは優れた強度特性を有してい
るものであり、釣糸、漁網等の漁業用資材としてのみな
らず、フィルタークロス、ブラシ等へも十分適用できる
ものである。
The monofilament of the present invention has excellent strength characteristics and can be fully applied not only to fishing materials such as fishing lines and fishing nets, but also to filter cloths, brushes, etc.

(作用) pv叶茶系重合体金属石けんを配合することにより、紡
糸、延伸性が向上し、高結節強度のモノフィラメントが
得られる理由は明らかでないが、金属石けんがPVDF
系重合体の分子間の滑りをよくする作用をするためと考
えられる。
(Function) It is not clear why the blending of PV Kanocha-based polymer metal soap improves spinning and drawing properties and provides monofilaments with high knot strength, but the reason why metal soap is similar to that of PVDF is
This is thought to be due to the effect of improving the slippage between the molecules of the polymer.

(実施例) 以下実施例によって本発明をさらに具体的に説明するが
、固有粘度は、ジメチルホルムアミド中で、30℃にお
いて測定した値、湿結節強度はJIS L 1013 
 法により測定した値である。
(Example) The present invention will be explained in more detail with reference to the following examples. The intrinsic viscosity is a value measured at 30°C in dimethylformamide, and the wet knot strength is a value determined according to JIS L 1013.
This is the value measured by the method.

実施例 固有粘度1.20のPVI)Fホモポリマーと第1表に
示した金属石けんとを第1表に示した割合でトライブレ
ンドし、エクストルーダー型溶融紡糸機を用い、紡糸温
度275℃でモノフィラメントを紡出し、紡出モノフィ
ラメントを40℃の水浴中で冷却し1次いで165℃の
グリセリン浴中で延伸倍率5.0倍の第1段延伸を行い
、さらに185℃の気体雰囲気中で延伸倍率が6.7倍
となるように第2段延伸を行い、約700デニールのモ
ノフィラメントを得た(スピンドロ一方式)。
Example A PVI) F homopolymer with an intrinsic viscosity of 1.20 and the metal soap shown in Table 1 were triblended in the proportions shown in Table 1, and using an extruder type melt spinning machine, the mixture was spun at a spinning temperature of 275°C. A monofilament is spun, the spun monofilament is cooled in a water bath at 40°C, and then the first stage of stretching is carried out in a glycerin bath at 165°C at a stretching ratio of 5.0 times, and then the stretching ratio is further increased in a gas atmosphere at 185°C. A second stage of drawing was performed so that the amount of the monofilament was 6.7 times, and a monofilament of about 700 denier was obtained (one-way spin drawing method).

得られたモノフィラメントは、はぼ透明で滑らかな表面
を有し、その湿結節強度は第1表に示すとおりであった
The obtained monofilament had a transparent and smooth surface, and its wet knot strength was as shown in Table 1.

第1表 Cり隘8は旧交り1rである。Table 1 C point 8 is the old intersection 1r.

(発明の効果) 本発明によれば、高結節強度で、外観的にも良好なPv
叶系モノフィラメントを操業性よく製造することが可能
になる。
(Effects of the Invention) According to the present invention, Pv with high knot strength and good appearance
It becomes possible to manufacture leaf-based monofilament with good operability.

Claims (3)

【特許請求の範囲】[Claims] (1)ポリ弗化ビニリデン系重合体に金属石けんを配合
した組成物で構成されていることを特徴とするポリ弗化
ビニリデン系モノフィラメント。
(1) A polyvinylidene fluoride monofilament characterized by being composed of a composition in which a metal soap is blended with a polyvinylidene fluoride polymer.
(2)金属石けんが次の一般式で表される化合物である
特許請求の範囲第1項記載のモノフィラメント。 (RCOO)_nM 〔Rは炭素原子数7〜30の炭化水素基(置換基を有し
ていてもよい。)、MはMg、Ca、Ba、Al、Zn
、Cd、Sn及びPbから選ばれた金属原子、nは金属
原子の原子価と等しい整数を示す。〕
(2) The monofilament according to claim 1, wherein the metal soap is a compound represented by the following general formula. (RCOO)_nM [R is a hydrocarbon group having 7 to 30 carbon atoms (which may have a substituent), M is Mg, Ca, Ba, Al, Zn
, Cd, Sn, and Pb, and n represents an integer equal to the valence of the metal atom. ]
(3)金属石けんの配合量が組成物の0.01〜0.5
重量%である特許請求の範囲第1項記載のモノフィラメ
ント。
(3) The amount of metal soap is 0.01 to 0.5 of the composition
% by weight of the monofilament according to claim 1.
JP1333385A 1985-01-25 1985-01-25 Polyvinylidene fluoride based monofilament Pending JPS61174418A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1333385A JPS61174418A (en) 1985-01-25 1985-01-25 Polyvinylidene fluoride based monofilament

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1333385A JPS61174418A (en) 1985-01-25 1985-01-25 Polyvinylidene fluoride based monofilament

Publications (1)

Publication Number Publication Date
JPS61174418A true JPS61174418A (en) 1986-08-06

Family

ID=11830204

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1333385A Pending JPS61174418A (en) 1985-01-25 1985-01-25 Polyvinylidene fluoride based monofilament

Country Status (1)

Country Link
JP (1) JPS61174418A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109355780A (en) * 2018-11-06 2019-02-19 安徽太平洋特种网业有限公司 A kind of production technology of strong thermal contraction net

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109355780A (en) * 2018-11-06 2019-02-19 安徽太平洋特种网业有限公司 A kind of production technology of strong thermal contraction net

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