JPS5987140A - Rubber product reinforced by fiber - Google Patents
Rubber product reinforced by fiberInfo
- Publication number
- JPS5987140A JPS5987140A JP57198549A JP19854982A JPS5987140A JP S5987140 A JPS5987140 A JP S5987140A JP 57198549 A JP57198549 A JP 57198549A JP 19854982 A JP19854982 A JP 19854982A JP S5987140 A JPS5987140 A JP S5987140A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- nylon
- rubber
- fibers
- less
- 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
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 53
- 229920001971 elastomer Polymers 0.000 title claims abstract description 47
- 239000005060 rubber Substances 0.000 title claims abstract description 47
- 229920003189 Nylon 4,6 Polymers 0.000 claims abstract description 17
- 239000004677 Nylon Substances 0.000 claims abstract description 4
- 229920001778 nylon Polymers 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 11
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 abstract description 2
- 230000008602 contraction Effects 0.000 abstract 2
- 238000000034 method Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 6
- 229920002292 Nylon 6 Polymers 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 description 5
- 239000005020 polyethylene terephthalate Substances 0.000 description 5
- 229920002302 Nylon 6,6 Polymers 0.000 description 4
- 238000007598 dipping method Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000012783 reinforcing fiber Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000012779 reinforcing material Substances 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- 239000004953 Aliphatic polyamide Substances 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 229920003231 aliphatic polyamide Polymers 0.000 description 1
- 125000005250 alkyl acrylate group Chemical group 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
- 125000003368 amide group Chemical group 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- LRCFXGAMWKDGLA-UHFFFAOYSA-N dioxosilane;hydrate Chemical compound O.O=[Si]=O LRCFXGAMWKDGLA-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 238000007586 pull-out test Methods 0.000 description 1
- 229960004029 silicic acid Drugs 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/046—Reinforcing macromolecular compounds with loose or coherent fibrous material with synthetic macromolecular fibrous material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2021/00—Use of unspecified rubbers as moulding material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2321/00—Characterised by the use of unspecified rubbers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Tyre Moulding (AREA)
- Reinforced Plastic Materials (AREA)
- Laminated Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はゴム製品の補強用繊維としてナイロン４６繊維
を使用することにより製品工程１こおいてディップ工程
を省略することのできる繊維で補強されたゴム製品に関
するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fiber-reinforced rubber product that uses nylon 46 fiber as the reinforcing fiber for the rubber product, thereby eliminating the dipping step in the first product process. .
従来、タイヤコード、ベルト、ホース等のコ゛ム製品の
補強材用として適する高強力を有し９寸法安定性が優れ
た繊維として、ナイロン６、ナイロン６６に代表される
脂肪族ポリアミド、ポリエチレンテレフタレートは工業
曲番こ生産されている極めて有用な繊維であることが知
ら几ている。Conventionally, aliphatic polyamides and polyethylene terephthalate, represented by nylon 6 and nylon 66, have been used industrially as fibers with high strength and excellent dimensional stability that are suitable for reinforcing materials for comb products such as tire cords, belts, and hoses. It is known that it is an extremely useful fiber that is produced in a variety of ways.
近年、その生産性を上げる手段２例えば高速製糸法に関
する提案９寸法安定性を向上させるための熱処理方法に
関する提案、ポリエチレンテレフタレート（ＰＥＴ ）
に数多くみられるゴムとの接着性向上に関する提案がな
されている。In recent years, methods for increasing productivity 2. Proposal regarding high-speed silk reeling method 9. Proposal regarding heat treatment method to improve dimensional stability, polyethylene terephthalate (PET)
Proposals have been made to improve the adhesion with rubber, which is often found in
これらの提案は従来の補強用繊維を製造する工程からゴ
ノ・製品を製造する工程を画期的に変える程のものは見
い出されていないのが也状である。Unfortunately, none of these proposals has been found to be enough to radically change the process of manufacturing materials and products from the conventional process of manufacturing reinforcing fibers.
通常、繊維は撚糸とされ、ゴムとの接着力を高め９寸法
安定性を高めるため、１段あるいは２段のディップ液処
理を施した後、ゴ１、にうめこまれてゴム製品が得られ
°〔いるが、理想のゴムの補強用繊維としては上記ディ
ップ工程を省略することができ、」法安定性と接着力の
画期的に優れたものの出現が待たれているのである。Usually, the fibers are twisted into yarns, which are treated with a dip liquid in one or two stages to improve adhesion to the rubber and improve dimensional stability.Then, the fibers are embedded in rubber to obtain rubber products. However, we are looking forward to the emergence of an ideal rubber reinforcing fiber that can omit the above-mentioned dipping step and has revolutionary superior legal stability and adhesive strength.
本発明はゴム製品の補強劣繊維として特定の物性を有す
るナイロン４６繊維を使用することにより、繊維で補強
されたゴム製品の製造１稈におけるディップ処理工程を
省略することができ、しかも寸法安定性及びゴムとの接
着性が優れている繊維で補強されたゴム製品を提供する
ものである。By using nylon 46 fibers having specific physical properties as reinforcing inferior fibers for rubber products, the present invention makes it possible to omit the dipping process in one culm of manufacturing fiber-reinforced rubber products, and to achieve dimensional stability. The present invention also provides a fiber-reinforced rubber product that has excellent adhesion to rubber.
すなわち９本発明は１６０℃時の乾熱収縮率（Ｓ％）と
１３０℃時のクリープ率（Ｃ％）の合計（Ｓ＋０％）が
８％以下、中間伸度が１０％以下のナイロン４６繊維が
らなり、ディップ熱処理されていない生コードがうめこ
まれた繊維で補強されたゴム製品である。In other words, the present invention uses nylon 46 fibers having a total of dry heat shrinkage rate (S%) at 160°C and creep rate (C%) at 130°C (S+0%) of 8% or less and intermediate elongation of 10% or less. It is a rubber product reinforced with fibers filled with raw cord that has not been subjected to dip heat treatment.
以下詳細に本発明を説明する。本発明のゴム製品に、う
めこまれるナイロン４６繊維とは、８５モ／ｌｚ％以上
がモＮＨ（ＣＨ−）−ＮＨ−Ｃｏ （ＣＨ−）４−Ｃｏ
”ｊの単位からなるポリアミドがらなり、９６％硫酸
中１重幇％溶液として２５℃で測定して少なくとも２．
７の相対粘度、好ましくは２．９以上の相対粘度を有す
る繊維を延伸し、乾熱１収縮率（Ｓ％）とクリープ率（
Ｃ％）の合計（Ｓ＋０％）が８％以下好ましくは５％以
下中間伸度が１０％ＩＪ、下、好創しくは９％以下にな
るようにした強度７９／ｄ以上。The present invention will be explained in detail below. The nylon 46 fibers embedded in the rubber product of the present invention are 85 mo/lz% or more of monoNH(CH-)-NH-Co (CH-)4-Co.
A polyamide consisting of units of ``j'', as measured at 25°C as a 1% solution in 96% sulfuric acid, has at least 2.
A fiber having a relative viscosity of 7, preferably 2.9 or more is drawn, and the dry heat 1 shrinkage rate (S%) and creep rate (
C%) total (S+0%) is 8% or less, preferably 5% or less, and the intermediate elongation is 10% IJ, preferably 9% or less, and the strength is 79/d or more.
より好ましくは８ ｇ／ｄ以」二の強度を有する繊維で
ある。More preferably, the fiber has a strength of 8 g/d or more.
寸法安定性の目安として、１６０℃での乾熱収縮率（Ｓ
％）と１３０ Ｃでのクリープ率（Ｃ９６）が採用され
る。乾熱収縮率は１６０℃のオープン中で３０分経過後
の原糸のもとの糸長に対する収縮率の百分率であり、ク
リープ率とは１３０℃で１９／ｄ荷重下６０分経過後の
伸長率の百分率である。乾熱１■縮率とクリープ率の合
３１は、高温での収縮。As a guideline for dimensional stability, the dry heat shrinkage rate (S
%) and the creep rate at 130 C (C96) are taken. The dry heat shrinkage rate is the percentage of shrinkage of the original yarn after 30 minutes in an open environment at 160°C, and the creep rate is the elongation after 60 minutes under a 19/d load at 130°C. It is a percentage of the rate. Dry heat 1 ■ The sum of shrinkage rate and creep rate is 31, which is shrinkage at high temperature.
荷重下の伸長をあらｂす尺度となる。It is a measure of elongation under load.
上記乾熱収縮率（Ｓ％）とクレープ率（Ｃ％）ｉこつい
ては９例えばナイロン６繊維の場合、原糸段階ではＳ％
が８〜９％、Ｃ９６が５〜７％、Ｃ＋８％として１３〜
１６％であり、ナイロン６６の場合、Ｃ＋３％として１
０〜１１％である。 ＰＥＴ繊維の場合、高い乾熱収縮
率及び接着力に乏しいため、７″イツプ処理工程は必須
である。撚りコードの寸法安定性は、撚り角度に当然依
存するが。The above dry heat shrinkage rate (S%) and crepe rate (C%) i are 9. For example, in the case of nylon 6 fiber, S% at the yarn stage
is 8-9%, C96 is 5-7%, and C+8% is 13-9%.
16%, and in the case of nylon 66, 1 as C+3%
It is 0-11%. In the case of PET fibers, the 7" ip treatment step is essential due to their high dry heat shrinkage and poor adhesive strength. The dimensional stability of twisted cords naturally depends on the twist angle.
タイヤコード等の代表的撚り数（撚り角度）を＋２６０
ｄの２本撚り３９ ｔｗｉｓｔ／１０αＩこ例をとれば
ナイロン乙の場合、Ｃ十Ｓは１７〜１９％、ナイロン６
６の場合１５〜１７％である。ディップコードとして熱
処理を施しＣ＋８％を１５％）メ下好ましくは１３％以
下になるよう熱セットが行われている。これらの現状か
ら寸法安定性としてＣ→−８％が、原糸段階で８％以下
、」二り好ましくは５％以下の繊維の場合、撚りコード
（生コード）をゴム製品に直接使用することにより、タ
イヤコードをしくはそれ以上のものを得られることが判
明した。Typical number of twists (twist angle) for tire cords, etc. +260
d 2 strands 39 twist/10αI Taking this example, in the case of nylon Otsu, C1S is 17-19%, nylon 6
In the case of 6, it is 15-17%. Heat treatment is performed as a dip cord, and heat setting is performed to reduce C+8% to 15%, preferably 13% or less. Given these current circumstances, in the case of fibers with dimensional stability of C→-8% at the yarn stage of 8% or less, preferably 5% or less, twisted cords (raw cords) should be used directly in rubber products. It turns out that it is possible to obtain tire cords or even more.
この目的の繊維として、高結晶性ナイロン４６（ポリテ
トヲメチレンアジバミド）からなる寸法安定性に優れた
繊維が適していることを見い出したのである。ナイロン
４６繊維では高温熱延伸によりＣ＋８％の低い原糸を得
ることができるのである。例えば、２．７以上の相対粘
度を有するプーイｐン４６未延伸繊維もしくは手延イ中
繊Ｘ１１を熱板の温度を２４０℃以上融点未満、延伸ロ
ーラ一温度を２２０℃以上として２段加熱延伸すること
１こより。It has been found that a highly dimensionally stable fiber made of highly crystalline nylon 46 (polytewomethyleneazibamide) is suitable as a fiber for this purpose. With nylon 46 fiber, a raw yarn with a low C+8% can be obtained by hot drawing at high temperatures. For example, undrawn Pooh-Pun 46 fibers or hand-stretched medium fibers X11 having a relative viscosity of 2.7 or higher are heated and stretched in two stages at a heating plate temperature of 240°C or higher and below the melting point, and a stretching roller temperature of 220°C or higher. One thing to do.
３＋ｃ％が８％以下の繊維を得ることができる。Fibers with 3+c% of 8% or less can be obtained.
ナイロン４６は古くから公知のポリアミド′であるが、
高重合物の成形が困難であること力・ら、このポリマー
の工業用製品としての用途力；見し−８３されにくい点
がある。Nylon 46 is a long-known polyamide.
In addition to the fact that it is difficult to mold high polymers, it is difficult to evaluate the utility of this polymer as an industrial product.
プラスチックとして特開昭５６−１４９４２９ 号ＩＣ
例が唯−見い出されるのみであり、特１こ繊Ｈ，：ｔ（
ヒ番こついては多くの困難を有するものであ・）た。As a plastic, JP-A-56-149429 IC
There is only one example to be found, especially the first line H, :t(
There were many difficulties in getting the hang of it.
繊維化に際して、単に通常の方法、工程１こよ−って得
られた繊維の性能評価では到底９本発明の目的とするデ
ィップ熱処理ゴー稈なしの生コードのコ。During fiberization, the evaluation of the performance of the fibers obtained by simply using the usual method, step 1, shows that it is difficult to evaluate the performance of the fibers obtained by simply using the conventional method.
ム製品への補強材としての使用の発憇Ｉこをよ遣１達す
ることかできないのである。コ゛ム製品中のコードの寸
法安定性の目安は、コ′ム製品）ν造時のコー１！の１
■縮による製品寸法のずれの測定以外１こも、コ゛ノ、
中より取り出した、コードの強伸度曲線の中ｌ１ｌ（中
度からも調べられる。ディップ熱処理による寸法安定性
の向上手段により、ゴム中のコードの中間伸度は１０％
以内にとどまるようにディップ熱処理されている。The use of this material as a reinforcing material in aluminum products is only possible. The standard for the dimensional stability of the cord in a comb product is 1 cord when manufacturing a comb product). 1
■In addition to measuring deviations in product dimensions due to shrinkage,
The strength and elongation curve of the cord taken out from inside is medium l1l (it can also be investigated from medium to medium. By means of improving dimensional stability through dip heat treatment, the medium elongation of the cord in rubber is 10%.
Dip heat treated to stay within.
原糸段階で原糸の切断伸度、中間伸度を小さくするよう
に、極度に延伸した場合、生コード段階で収縮がおこり
中間伸度が高くなる。逆に原糸段階で十分熱処理し、緩
和させた構造では熱収縮率が小さくなるが、中間伸度及
びクリープ率が増大し、荷重下での寸法安定性としては
優れない。本発明の場合、ディップ熱処理により生コー
ドを伸長し、中間伸度を下げる工程がないので、原糸の
壬
中間伸度は、１０％以内、より好ましくは９％以下
府がよい。If the raw yarn is extremely stretched so as to reduce its cutting elongation and intermediate elongation at the raw yarn stage, shrinkage will occur at the raw cord stage and the intermediate elongation will increase. On the other hand, a structure that is sufficiently heat-treated at the yarn stage to be relaxed will have a small thermal shrinkage rate, but will have an increased intermediate elongation and creep rate, and will not have excellent dimensional stability under load. In the case of the present invention, since there is no step of elongating the green cord by dipping heat treatment and lowering the intermediate elongation, the intermediate elongation of the raw yarn is preferably 10% or less, more preferably 9% or less.
なお９本発明における中間伸度とはＪ工Ｓ Ｌ １０１
３に示された方法に準拠して行−った引張試験において
５．３６ｇ／ｄ応力時の伸度である。In addition, 9. The intermediate elongation in the present invention is J Engineering S L 101
In a tensile test conducted according to the method shown in No. 3, the elongation was 5.36 g/d under stress.
さらに驚くべきことには１本発明ではゴム補強用繊維と
ゴムとの接着性が良好であることである。What is even more surprising is that in the present invention, the adhesiveness between the rubber reinforcing fiber and the rubber is good.
ナイロン４６繊維は高温熱延伸によりＣ＋８％の低い原
糸が得られること以外にアミド基濃度力；高いためか生
コードとゴムとの間でも力）なり良好な接着性を示すの
である。Nylon 46 fibers not only provide raw fibers with a low C+8% by hot drawing at high temperatures, but also exhibit good adhesion between raw cord and rubber, perhaps due to the high amide group concentration.
またナイロン４６＃ｉｌ！維はその製造工程特にその紡
糸１稈のみで繊維表面が粗面化される。この粗面化（顕
Ｗ１．鏡下、すじ模様の凸凹が多数観察さオｂる。）に
よる表面積の多さによっても接着性力電向上すると考え
られる。Also nylon 46#il! The surface of the fiber is roughened during the manufacturing process, especially when only one culm is spun. It is thought that the increase in surface area resulting from this roughening (under the microscope, many streaky irregularities were observed) improves adhesive strength.
ゴムとの高接着性を利用することにより、コ゛ムにうめ
こまれた燃りコードの強力をほぼコート′σ）破断強力
まで高めることができる。By utilizing the high adhesiveness with rubber, the strength of the burning cord embedded in the comb can be increased to almost the breaking strength of the coat.
ナ繊維表面の粗面化は具体的には、ナイロン４６繊維を
紡糸捲取り後放置し、未延伸糸表面１こ微細な球晶構造
を発生させた後、延伸する方法力；あげられる。Specifically, the surface roughening of the fibers can be achieved by a method in which the nylon 46 fibers are left to stand after spinning and winding, a fine spherulite structure is generated on the surface of the undrawn fibers, and then the fibers are stretched.
ナイロン６、ナイロン６６等の生コードは一般に、レゾ
ルシンーフオルマリンーワテツクス（ＲＦＬ液）に段積
され、乾燥及び熱処理（１８０℃〜２２０℃で１〜２
ｇ／ｄの張力下）が行われる。一般にＰＦＬ液処理がな
い場合は、コ゛ムとの十分な接着力が得られないし乾熱
１ｃ１．縮率が大きいため、ゴムに埋めこまれた場合９
寸法安定性が著しく悪く良好なゴム製品ができない。こ
れらの事情はＰ１ｍＴ繊維の場合、さらに大きく、２段
のディップ熱処理が通常行われるが原糸段階でエポキシ
化合物等を原糸に付与し、その後ナイロン類と同時の１
段ディップ熱処理が施されている。一般にゴＪ・補強材
用として繊維が用いられる場合、撚りが施される。一般
には原糸をリング撚糸機にかけ、必要な燃り数（撚り角
度）を有する撚糸が（？られる。撚り角度はｔａｎ−’
７ｒｄＴ、 （ｙｒ ＝ Ｌ１４． ｄ ： ｍリコー
ト直径、Ｔ：撚り数）であたえられる下撚りコードを合
わせて上撚りを施され又は同時に下撚り、上撚りが施さ
れて撚り糸とされる。例えば、タイヤに例をとれば、
１２６０ ｄの原糸の場合、 ３９［＆１０αの下撚
り、上撚りがかけられ、撚りコードいわゆる生コードが
作られる。この撚り角度は、約２５°である。最終ゴム
製品に応じて、撚り角度は、一般に２５′１±１５°に
して用いられている。生コードでの乾熱収縮率、クリー
プ率は撚り数すなわち撚り角度に幾分依存するが撚り角
度が２５°±１５°の範囲では、その依存性は原糸の物
性（乾熱収縮率、クリープ率）に比較し、それ程大きく
ない。一般に原糸のＣ＋８％に対し４〜６％高い生コー
ドのＣ＋８％の値となる。またゴム製品中のコードの性
能（中間伸度）は撚り数を調整することによ−っても行
うことができる。タイヤコードの場合には中間伸度以外
にコードの疲労性があるため上記のごとく撚り角度は２
５°±１５°の範囲で調整され、より好ましくは２５６
±１０°で調整さｉｌ、る。Raw cords such as nylon 6 and nylon 66 are generally stacked in resorcinol-formalin-wax (RFL liquid), dried and heat treated (at 180°C to 220°C for 1 to 2 hours).
g/d) is carried out. Generally, if there is no PFL liquid treatment, sufficient adhesive strength with the comb cannot be obtained, and dry heat 1c1. Due to the large shrinkage ratio, if embedded in rubber 9
Dimensional stability is extremely poor, making it impossible to produce good rubber products. These circumstances are even more serious in the case of P1mT fibers, where a two-stage dip heat treatment is usually performed, but an epoxy compound, etc. is added to the yarn at the yarn stage, and then a 1-stage dip heat treatment is applied at the same time as nylon.
Staged dip heat treatment is applied. Generally, when fibers are used as reinforcing materials, they are twisted. Generally, the raw yarn is put through a ring twisting machine, and the twisted yarn with the required number of twists (twist angle) is twisted.The twist angle is tan-'
7rdT, (yr = L14. d: m recoat diameter, T: number of twists) are combined and subjected to ply-twisting, or simultaneously ply-twisted and ply-twisted to form a twisted yarn. For example, if we take tires as an example,
In the case of a raw yarn of 1260 d, 39[&10α] of first twist and final twist are applied to produce a twisted cord, so-called raw cord. This twist angle is approximately 25°. Depending on the final rubber product, a twist angle of 25'1±15° is commonly used. The dry heat shrinkage rate and creep rate of raw cord depend somewhat on the number of twists, that is, the twist angle, but when the twist angle is in the range of 25°±15°, the dependence is It is not that large compared to the rate). Generally, the value of raw cord C+8% is 4 to 6% higher than that of raw yarn C+8%. Furthermore, the performance (intermediate elongation) of cords in rubber products can also be controlled by adjusting the number of twists. In the case of tire cords, in addition to the intermediate elongation, there is fatigue of the cord, so the twist angle is 2 as described above.
Adjusted within a range of 5°±15°, more preferably 256°
Adjustable by ±10°.
このような生コードがゴムに５めこ電れる。生変性ゴム
、ゴムと環化ゴムとの縮合肪導体、ネメプレンーブタジ
エンースチレン共重合体、ブタジエンーアクリロニトル
共重合体のごときジエン系合成ゴム、多硫化ゴム、ゴム
様イソプレン重合体及び共重合体、アルキルアクリレー
トとクロロスルホン化ポリオレフィン類などの合成ゴム
及びこれらの２種以上をブレンドしたもの等である。こ
イよ４
れらのゴムは、従来公知の加硫剤、加硫足進剤。A raw cord like this can generate 5 electric currents on the rubber. Biodenatured rubbers, condensed fatty conductors of rubber and cyclized rubber, diene-based synthetic rubbers such as nemeprene-butadiene-styrene copolymers, butadiene-acrylonitrile copolymers, polysulfide rubbers, rubber-like isoprene polymers, and These include copolymers, synthetic rubbers such as alkyl acrylates and chlorosulfonated polyolefins, and blends of two or more of these. 4 These rubbers are conventionally known vulcanizing agents and vulcanization accelerators.
抗酸化剤、老化防止剤、カーポンブラック、水和シリカ
等のものが必要に応じて混練され生ゴムとなる。本発明
では生コードが、生ゴム中にうめこまれ、１００〜２（
〕０℃の温度で加硫され繊維で補強されたゴム！＋！！
！品となるのである。Antioxidants, anti-aging agents, carbon black, hydrated silica, and other substances are kneaded as necessary to produce raw rubber. In the present invention, the raw cord is embedded in raw rubber and has a density of 100 to 2 (
] Rubber vulcanized at a temperature of 0℃ and reinforced with fibers! +! !
! It becomes a product.
）ジ上のごとく本発明の特徴は、Ｓ＋Ｃ％が８％以下、
より好ましくは５％１′Ｊ、下であり中間伸度が１０％
１反下であるナイロン４６繊維からなるコードをディッ
プ熱処理１稈におけるコードの寸法安定性向上を行うこ
となく使用できるという点、さらに生コードとゴムとの
接着力がディップ液（ＲＦ’Ｌ液）なしでも、かなり高
く必要に応じて。) As mentioned above, the characteristics of the present invention are that S+C% is 8% or less,
More preferably 5% 1'J or lower and the intermediate elongation is 10%.
It is possible to use a cord made of nylon 46 fiber, which is less than 1 strand, without improving the dimensional stability of the cord after dip heat treatment. Even without, quite high if necessary.
繊維表面が粗面化されている繊維からなる生コードを使
用し、さらにゴムとの接着力を高めることができ、さら
に必要に応じて原糸製造段階で、ゴムとの接着をより向
上しうる液（例えばＰＥＴ繊維で用いられているエポキ
シ化合物等の溶液）を付与するかあるいは生コード段階
で付着し、必要１こ応して乾燥させることにより寸法安
定性に加えてゴムとの接着良好な、ゴム製品とすること
ができる点にある。By using a raw cord made of fibers with a roughened fiber surface, it is possible to further increase the adhesion to rubber, and if necessary, the adhesion to rubber can be further improved at the yarn manufacturing stage. By applying a liquid (for example, a solution of an epoxy compound used in PET fibers) or attaching it at the raw cord stage and drying it as necessary, it improves dimensional stability and good adhesion with rubber. , in that it can be made into rubber products.
以下実施例にξより詳細に本発明を説明する。The present invention will be explained in more detail with reference to Examples below.
なお、実施例中の機械的性質の測定はことわらない限り
Ｊ工Ｓの規格に準じて実施した。Note that measurements of mechanical properties in the examples were carried out in accordance with the standards of J.Eng.S, unless otherwise specified.
実施例
１２６０ｄのナイロン６（Ｎ６）、ナイロン６６（ＮＩ
Ｓ６）、ナイロン４６（Ｎ４６）の原糸をリング撚糸機
でぶ１〜黒８に・ついては３９回／１０ｆｆ、 ４９に
・ついては′５３回／１０信の上燃り、下紫りを与え。Example 1260d nylon 6 (N6), nylon 66 (NI
S6), Nylon 46 (N46) raw yarn was twisted by a ring twisting machine for fat 1 to black 8, giving it a high burn of 39 times/10 ff, and for 49, giving it a high burn of 53 times/10.
生コードとした。生コードをデシケータ−中に１旅夜お
き乾燥後、未加硫ゴム（天然ゴムを含んだタイヤカーカ
ス用ゴム）中１こ埋め込み、１５０℃。It was made into a raw code. After drying the raw cord in a desiccator for one night, it was embedded in unvulcanized rubber (rubber for tire carcass containing natural rubber) at 150°C.
３０分間、３００ｇ荷重下加硫させ、このものを用いて
引き抜き試験を行い接着力、また９強伸度測定し６．７
５に９時の伸度（中間伸度）を測定した。It was vulcanized for 30 minutes under a load of 300g, and a pull-out test was conducted using this material to measure the adhesive strength and the elongation at 9 strength, which was 6.7.
The elongation at 5 and 9 o'clock (intermediate elongation) was measured.
Claims (1)
クリープ率（Ｃ％）の合計（Ｓ＋０％）が８％以下、中
間伸度が１０％以下のナイロン４６繊維からなり、ディ
ップ部処理されていない生コードがうめこまれた繊維で
補強されたゴム製品。 １２） Ｓ ＋ Ｃ％が５％以下であるナイロン４６ｍ
、維を用いた特許請求の範囲第（１１項記載の繊維で？
ｉＲ強されたゴム製品。 （３）繊維表面にすじ模様の凸凹を有するナイロン４６
繊維を用いた特許請求の範囲第（１）項記載の繊維で補
強されたゴム製品。[Claims] (1) The sum of the dry heat shrinkage rate (8%) at 160°C and the creep rate (C%) at 130°C (S+0%) is 8% or less, and the intermediate elongation is 10% or less. A rubber product made of nylon 46 fibers and reinforced with fibers embedded with untreated raw cord. 12) Nylon 46m with S + C% less than 5%
, Claim No. (11) using the fiber?
iR reinforced rubber products. (3) Nylon 46 with a striped pattern on the fiber surface
A rubber product reinforced with fibers according to claim (1), which uses fibers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57198549A JPS5987140A (en) | 1982-11-11 | 1982-11-11 | Rubber product reinforced by fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57198549A JPS5987140A (en) | 1982-11-11 | 1982-11-11 | Rubber product reinforced by fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5987140A true JPS5987140A (en) | 1984-05-19 |
| JPH0252650B2 JPH0252650B2 (en) | 1990-11-14 |
Family
ID=16393014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57198549A Granted JPS5987140A (en) | 1982-11-11 | 1982-11-11 | Rubber product reinforced by fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5987140A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4745955A (en) * | 1986-05-28 | 1988-05-24 | The Yokohama Rubber Co., Ltd. | Pneumatic tire for passenger car |
| US4858666A (en) * | 1985-04-30 | 1989-08-22 | Toyo Tire & Rubber Company Limited | Radial tire |
| JPH02195657A (en) * | 1989-01-23 | 1990-08-02 | Sumitomo Electric Ind Ltd | Electrolyte circulation type secondary battery |
-
1982
- 1982-11-11 JP JP57198549A patent/JPS5987140A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4858666A (en) * | 1985-04-30 | 1989-08-22 | Toyo Tire & Rubber Company Limited | Radial tire |
| US4745955A (en) * | 1986-05-28 | 1988-05-24 | The Yokohama Rubber Co., Ltd. | Pneumatic tire for passenger car |
| JPH02195657A (en) * | 1989-01-23 | 1990-08-02 | Sumitomo Electric Ind Ltd | Electrolyte circulation type secondary battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0252650B2 (en) | 1990-11-14 |
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