JPH0726415A - Polybenzobisoxazole fiber having improved adhesiveness and its production - Google Patents
Polybenzobisoxazole fiber having improved adhesiveness and its productionInfo
- Publication number
- JPH0726415A JPH0726415A JP16711493A JP16711493A JPH0726415A JP H0726415 A JPH0726415 A JP H0726415A JP 16711493 A JP16711493 A JP 16711493A JP 16711493 A JP16711493 A JP 16711493A JP H0726415 A JPH0726415 A JP H0726415A
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- JP
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- Prior art keywords
- fiber
- polybenzobisoxazole
- elastic modulus
- gpa
- treatment
- 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.)
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- Chemical Or Physical Treatment Of Fibers (AREA)
- Artificial Filaments (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は接着性の改良されたポリ
ベンゾビスオキサゾール繊維及びその製造方法に関す
る。FIELD OF THE INVENTION The present invention relates to a polybenzobisoxazole fiber having improved adhesion and a method for producing the same.
【０００２】[0002]
【従来の技術】従来、タイヤや伝動ベルトの如きゴム資
材の補強材として使用される繊維に関してはポリエステ
ル繊維、ナイロン繊維及びスチール繊維が中心であった
が、ケブラーに代表される芳香族ポリアミド繊維の出現
により、高強度、高弾性率、さらには耐熱性が要求され
る分野においては、この芳香族ポリアミドが一部の用途
においては使用されている。2. Description of the Related Art Conventionally, polyester fibers, nylon fibers and steel fibers have been the main fibers used as a reinforcing material for rubber materials such as tires and transmission belts, but aromatic polyamide fibers such as Kevlar have been used. With the advent, this aromatic polyamide is used in some applications in fields where high strength, high modulus and heat resistance are required.
【０００３】しかしながら、例えばこの芳香族ポリアミ
ドを、タイヤ重量の軽量化のために、スチールコードの
代替材料として使用する試みもなされたが、芳香族ポリ
アミド繊維の強度及び耐摩耗性が不十分なため、その実
現にいたっていない。However, attempts have been made to use this aromatic polyamide as a substitute material for steel cords in order to reduce the weight of tires, but the strength and abrasion resistance of aromatic polyamide fibers are insufficient. , It has not been realized yet.
【０００４】この芳香族ポリアミド繊維を越える素材と
して、ポリベンゾビスオキサゾール繊維が注目されてい
る。ポリベンゾビスオキサゾール繊維は芳香族ポリアミ
ド繊維よりもさらに優れた強度、弾性率及び耐熱性を有
し、芳香族ポリアミド繊維によって実現出来なかったス
チールコードの代替素材として、さらには、ベルト等の
ゴム資材分野において、より高強度、高耐熱性が要求さ
れる用途分野での補強用繊維として使用が検討されてい
る。Polybenzobisoxazole fibers have been attracting attention as a material exceeding the aromatic polyamide fibers. Polybenzobisoxazole fiber has higher strength, elastic modulus and heat resistance than aromatic polyamide fiber, and as a substitute material for steel cord which could not be realized by aromatic polyamide fiber, and further, rubber material such as belt. In the field, its use as a reinforcing fiber is being investigated in the field of application where higher strength and higher heat resistance are required.
【０００５】さらに、繊維強化複合材料の分野において
は、軽量でかつ優れた機械的特性を有する複合材料が望
まれており、このポリベンゾビスオキサゾール繊維の優
れた機械的特性は、新規な高性能繊維強化複合材料とし
て、極めて有望な素材である。Further, in the field of fiber reinforced composite materials, there is a demand for a composite material which is lightweight and has excellent mechanical properties. The excellent mechanical properties of the polybenzobisoxazole fibers are due to the novel high performance. It is an extremely promising material for fiber-reinforced composite materials.
【０００６】ゴム資材や繊維強化複合材料において、こ
のような繊維を使用するにあたっては、マトリックスと
なるゴムあるいは樹脂と補強繊維の接着性は極めて重要
なポイントの一つである。ゴム資材においては、接着性
の悪さは耐疲労性の低下につながり、繊維強化複合材料
においては、繊維−樹脂間の剥離による機械的特性の低
下につながる。In the use of such fibers in rubber materials and fiber-reinforced composite materials, the adhesiveness between the matrix rubber or resin and the reinforcing fibers is an extremely important point. In rubber materials, poor adhesiveness leads to a reduction in fatigue resistance, and in fiber reinforced composite materials, it leads to a reduction in mechanical properties due to peeling between the fiber and the resin.
【０００７】しかし、かかるポリベンゾビスオキサゾー
ル繊維をタイヤコードや伝動ベルト等のゴム資材の補強
用繊維として、あるいは繊維強化複合材料の補強用繊維
として使用する場合、従来のポリベンゾビスオキサゾー
ル繊維は、芳香族ポリアミド繊維と比較し、ゴムやマト
リックス樹脂との接着性がやや劣るという欠点があっ
た。However, when such a polybenzobisoxazole fiber is used as a reinforcing fiber for a rubber material such as a tire cord or a transmission belt or as a reinforcing fiber for a fiber reinforced composite material, the conventional polybenzobisoxazole fiber is As compared with the aromatic polyamide fiber, there was a drawback that the adhesiveness to rubber and matrix resin was slightly inferior.
【０００８】[0008]
【発明が解決しようとする課題】本発明はポリベンゾビ
スオキサゾール繊維における前記従来の欠点、即ち、ゴ
ム材料及び樹脂との接着性が劣るという問題点を解消
し、高強度、高弾性率、高耐熱性を有し、さらに優れた
接着性を有するポリベンゾビスオキサゾール繊維を提供
せんとするものである。DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned conventional drawbacks of polybenzobisoxazole fibers, that is, the problem of poor adhesion to rubber materials and resins, and has high strength, high elastic modulus, and high elasticity. It is intended to provide a polybenzobisoxazole fiber having heat resistance and excellent adhesiveness.
【０００９】[0009]
【課題を解決するための手段】即ち、本発明は、少なく
とも４．０ＧＰａの引張強度と、少なくとも１４０ＧＰ
ａの引張弾性率を有し、かつフィラメント表面の酸素原
子数の炭素原子数に対する比（０／Ｃ）が０．２０以上
であることを特徴とする、接着性の改良されたポリベン
ゾビスオキサゾール繊維、及び少なくとも４．０ＧＰａ
の引張強度と、少なくとも１４０ＧＰａの引張弾性率を
有するポリベンゾビスオキサゾール繊維をコロナ放電処
理する事を特徴とする、接着性の改良されたポリベンゾ
ビスオキサゾール繊維の製造方法である。That is, the present invention provides a tensile strength of at least 4.0 GPa and at least 140 GP.
Polybenzobisoxazole having improved adhesiveness, which has a tensile modulus of a and a ratio (0 / C) of the number of oxygen atoms to the number of carbon atoms on the filament surface is 0.20 or more. Fiber, and at least 4.0 GPa
And a polybenzobisoxazole fiber having a tensile elastic modulus of at least 140 GPa is subjected to a corona discharge treatment, and a method for producing a polybenzobisoxazole fiber having improved adhesiveness.
【００１０】本発明におけるポリベンゾビスオキサゾー
ル繊維は、少なくとも４．０ＧＰａの引張強度と、少な
くとも１４０ＧＰａの引張弾性率を、さらに好ましくは
少なくとも５．０ＧＰａの引張強度と、少なくとも２５
０ＧＰａの引張弾性率を有する。このポリベンゾビスオ
キサゾール繊維は、従来の芳香族ポリアミド繊維と比較
し、優れた強度及び弾性率を有するため、例えば乗用車
用タイヤのカーカス素材として使用した場合、従来達成
できなかった著しい軽量化が可能となる。The polybenzobisoxazole fiber of the present invention has a tensile strength of at least 4.0 GPa, a tensile modulus of at least 140 GPa, and more preferably at least 5.0 GPa.
It has a tensile modulus of 0 GPa. This polybenzobisoxazole fiber has superior strength and elastic modulus compared to conventional aromatic polyamide fibers, so when used as a carcass material for passenger car tires, for example, it is possible to achieve a significant weight reduction that was previously unattainable. Becomes
【００１１】さらに本発明におけるポリベンゾビスオキ
サゾール繊維は、フィラメント表面の酸素原子数の炭素
原子数に対する比（０／Ｃ）が０．２０以上である事を
特徴とする。ポリベンゾビスオキサゾールの化学構造式
から計算される０／Ｃの値は０．１４であるが、本発明
で開示される。コロナ処理を施したポリベンゾビスオキ
サゾール繊維は、フィラメント表面の０／Ｃの値が０．
２０以上という、高い酸素濃度比を有する。０／Ｃの値
が０．２０未満の場合には、本発明の目的とする接着性
の向上効果が得られなくなるため好ましくない。Further, the polybenzobisoxazole fiber of the present invention is characterized in that the ratio (0 / C) of the number of oxygen atoms to the number of carbon atoms on the filament surface is 0.20 or more. The value of 0 / C calculated from the chemical structural formula of polybenzobisoxazole is 0.14, which is disclosed in the present invention. The polybenzobisoxazole fiber subjected to corona treatment has a 0 / C value of 0.
It has a high oxygen concentration ratio of 20 or more. When the value of 0 / C is less than 0.20, the effect of improving the adhesiveness, which is the object of the present invention, cannot be obtained, which is not preferable.
【００１２】ポリベンゾビスオキサゾールフィラメント
表面の、酸素原子数の炭素原子数に対する比（０／Ｃ）
の測定は、Ｘ線電子分光装置（島津製作所製ＥＳＣＡ８
５０型）を用い、両面をテープでサンプルを固定した試
料台を導入し、真空度５×１０-6パスカルにした後、光
源としてＭｇＫα（１２５４ｅＶ）を用いて、Ｃ1S及び
Ｏ1Sの測定を行った。測定後、波形処理を行った後、そ
れぞれのピーク面積を算出し、炭素原子に対する酸素原
子の比を求めた。Ratio of the number of oxygen atoms to the number of carbon atoms (0 / C) on the surface of the polybenzobisoxazole filament
X-ray electron spectrometer (ESCA8 manufactured by Shimadzu Corporation)
50 type), the sample table with the sample fixed on both sides with tape was introduced, and the degree of vacuum was set to 5 × 10 −6 Pascal, and then C 1S and O 1S were measured using MgKα (1254 eV) as a light source. went. After the measurement, waveform processing was performed, and then each peak area was calculated to obtain the ratio of oxygen atoms to carbon atoms.
【００１３】本発明におけるポリベンゾビスオキサゾー
ル繊維は、ヤーンをコロナ放電処理する事により製造す
る。ヤーンをコロナ処理する方法としては、紡糸、抽
出、乾燥または紡糸、抽出、乾燥、熱処理された繊維
を、一旦巻き取った後処理する方法及び一旦巻き取るこ
となく、紡糸、抽出、乾燥または紡糸、抽出、乾燥、熱
処理の工程に引き続いて連続で処理する方法が可能であ
るが、生産性等を考慮すると、連続で処理する方法が好
ましい。The polybenzobisoxazole fiber in the present invention is produced by subjecting the yarn to corona discharge treatment. As a method of corona-treating the yarn, a method of spinning, extracting, drying or spinning, extracting, drying, and heat-treating the fiber, winding and then treating, and once winding, spinning, extracting, drying or spinning, A continuous treatment method is possible following the extraction, drying and heat treatment steps, but a continuous treatment method is preferable in view of productivity and the like.
【００１４】従来、コロナ処理により高性能繊維の接着
性改善する方法として、超高分子量ポリエチレン繊維の
例が特開昭６０−１４６０７８号に開示されている。し
かしながら、この方法では処理中に繊維が高温になるた
め、耐熱性の低いポリエチレン繊維においては、高い照
射線量エネルギーを繊維に与える事ができず、０．０５
〜３．０ワット／ｍ2／分という極めて低い照射線量で
のコロナ処理を実施しており、コロナ処理により著しい
接着性の改善は達成されていない。また、特開昭６３−
２１３５３０号にはポリオレフィン、特に超高分子量ポ
リエチレン成形品のコロナ放電処理による接着性の改善
方法が開示されており、７５ワット／ｍ 2／分の照射線
量でコロナ放電処理する事が実施例に記載されている。
しかし、このような比較的低い照射線量により処理にも
かかわらず、既に約５％の引張強度及び引張弾性率の低
下が生じており、さらに接着性を向上させるために、高
い照射線量で処理する事は実質的に不可能であった。Conventionally, high-performance fiber adhesion by corona treatment
As a method to improve the properties of ultra high molecular weight polyethylene fiber
An example is disclosed in JP-A-60-146078. Shi
However, this method causes the fibers to become hot during processing.
Therefore, for polyethylene fibers with low heat resistance,
The irradiation energy cannot be given to the fiber, and 0.05
~ 3.0 watt / m2With an extremely low irradiation dose of
The corona treatment of
No improvement in adhesion has been achieved. In addition, JP-A-63-
No. 213530 includes polyolefins, especially ultra high molecular weight polymers.
Improvement of adhesiveness of polyethylene molded product by corona discharge treatment
A method is disclosed, 75 watts / m 2/ Min irradiation line
A corona discharge treatment in an amount is described in the examples.
However, due to such relatively low irradiation dose
Nevertheless, the tensile strength and tensile modulus are already low by about 5%.
Underside, and in order to further improve the adhesiveness,
It was virtually impossible to process with a high irradiation dose.
【００１５】これに対して、本発明に用いるポリベンゾ
ビスオキサゾール繊維では１００ワット／ｍ2／分以上
の、さらには１０００ワット／ｍ2／分維持用の高い照
射線量を与えて処理を行っても、処理後の繊維の機械的
特性が全く低下しないという事が明らかになった。この
事により、従来にない優れた機械的特性と接着性を有す
るポリベンゾビスオキサゾール繊維の製造が可能とな
り、本発明に到達したわけである。On the other hand, the polybenzobisoxazole fiber used in the present invention is treated by giving a high irradiation dose of 100 watt / m 2 / min or more, and further 1000 watt / m 2 / min. However, it was revealed that the mechanical properties of the treated fiber were not deteriorated at all. This has made it possible to produce polybenzobisoxazole fibers having unprecedented excellent mechanical properties and adhesiveness, and reached the present invention.
【００１６】実施例１ ＜ポリベンゾビスオキサゾール繊維の製造＞固有粘度２
５（メタンスルホン酸溶液、２５℃）のポリベンゾビス
オキサゾールポリマーを、ポリリン酸中に、１４ｗｔ％
の濃度で含有する紡糸ドープを、直径０．３ｍｍの紡糸
孔を有し１６０℃に加熱された紡糸口金から空気中に紡
出し、凝固浴槽を通過せしめた後、ポリリン酸の抽出工
程、乾燥工程、熱処理工程を経た後巻き取った。この工
程中、実質的に延伸は行っていない。Example 1 <Production of polybenzobisoxazole fiber> Intrinsic viscosity 2
14% by weight of polybenzobisoxazole polymer of 5 (methanesulfonic acid solution, 25 ° C.) in polyphosphoric acid
The spin dope contained in the above-mentioned concentration was spun into the air from a spinneret having a spin hole having a diameter of 0.3 mm and heated to 160 ° C., passed through a coagulation bath, and then a polyphosphoric acid extraction step and a drying step. After passing through the heat treatment step, it was wound up. During this step, substantially no stretching is performed.
【００１７】得られたマルチフィラメントは、９８６デ
ニール／６８０フィラメントの糸構成で、引張強度５．
１ＧＰａ（３７グラム／デニール）、引張弾性率２３０
ＧＰａ（１６６０グラム／デニール）の高い機械的特性
を有していた。The resulting multifilament has a yarn constitution of 986 denier / 680 filament and a tensile strength of 5.
1 GPa (37 g / denier), tensile elastic modulus 230
It had high mechanical properties of GPa (1660 grams / denier).
【００１８】＜マルチフィラメントのコロナ放電処理＞
この繊維を、春日電気社製のコロナ放電処理装置を用い
て、バー状電極を使用し、第１表に示した各照射条件で
処理を行った。<Corona discharge treatment of multifilament>
This fiber was treated using a corona discharge treatment device manufactured by Kasuga Denki Co., Ltd. using bar-shaped electrodes under each irradiation condition shown in Table 1.
【００１９】コロナ放電処理後の各マルチフィラメント
の引張強度及び引張弾性率の値を第１表に示すが、高い
エネルギーで放電処理した後も、引張強度及び引張弾性
率の値の低下は全く認められなかった。The values of the tensile strength and the tensile elastic modulus of each multifilament after corona discharge treatment are shown in Table 1. The reduction of the tensile strength and the tensile elastic modulus value is observed even after the discharge treatment with high energy. I couldn't do it.
【００２０】＜０／Ｃ値の測定＞前述した測定法に従っ
て、フィラメント表面の酸素原子数の炭素原子数に対す
る比（０／Ｃ）の測定を、Ｘ線電子分光装置を用いて行
った。測定結果を第１表に示す。<Measurement of 0 / C value> The ratio (0 / C) of the number of oxygen atoms to the number of carbon atoms on the filament surface was measured by an X-ray electron spectrometer according to the above-mentioned measuring method. The measurement results are shown in Table 1.
【００２１】＜層間せん断強さ（ＩＬＳＳ）の測定＞上
記、各コロナ処理マルチフィラメントを用い、ＩＬＳＳ
の測定を行った。ＩＬＳＳ測定用の試験片は、エポキシ
樹脂を用いて作成した。エポン９１０２Ａ、エポン９１
０２Ｂ、エポン９１０２Ｃ（いずれも油化シェル社製）
を、それぞれ１００／７６／１の重量比で混合した樹脂
に含浸し、１３５℃で１．５時間硬化させ、厚さ３ｍ
ｍ、幅６ｍｍ、長さ１８ｍｍの一方向補強複合材の試験
片とした。なお、Ｖｆ＝５０に調整した。この試験片
を、支点間距離１２ｍｍ（１／ｈ＝４）、クロスヘッド
速度１ｍｍ／分の条件でせん断応力を測定した後、最大
せん断応力Ｐ（Ｋｇ）と試験片断面積Ａ（ｍｍ2）か
ら、ＩＬＳＳ値＝３．Ｐ／４・Ａ（Ｋｇ／ｍｍ2）を算
出した。ＩＬＳＳ測定結果を第１表に示す。<Measurement of Interlaminar Shear Strength (ILSS)> Using the above corona-treated multifilaments, ILSS
Was measured. The test piece for ILSS measurement was created using an epoxy resin. Epon 9102A, Epon 91
02B, Epon 9102C (all manufactured by Yuka Shell Co., Ltd.)
Was impregnated with a resin mixed in a weight ratio of 100/76/1 and cured at 135 ° C. for 1.5 hours to give a thickness of 3 m.
m, width 6 mm, length 18 mm was used as a test piece of a unidirectionally reinforced composite material. In addition, it adjusted to Vf = 50. The test piece, point distance 12mm (1 / h = 4) , after measuring the shear stress at a crosshead speed of 1 mm / min conditions, the maximum shear stress P (Kg) and specimen cross-sectional area A (mm 2) , ILSS value = 3. P / 4 · A (Kg / mm 2 ) was calculated. The ILSS measurement results are shown in Table 1.
【００２２】比較例１ 実施例１で作成したポリベンゾビスオキサゾールマルチ
フィラメントを、何の処理も施さずに試料とし、実施例
１と同一の条件をＸ線電子分光装置による０／Ｃ値の測
定及びＩＬＳＳの測定を行った。結果を第１表に示す。Comparative Example 1 The polybenzobisoxazole multifilament prepared in Example 1 was used as a sample without any treatment, and the 0 / C value was measured by an X-ray electron spectrometer under the same conditions as in Example 1. And ILSS were measured. The results are shown in Table 1.
【００２３】第１図は、本発明の実施例１（第１表試料
４）及び比較例１で作成したポリベンゾビスオキサゾー
ルマルチフィラメントの、Ｘ線電子分光装置による酸素
原子の測定結果の一例である。試料にコロナ放電処理を
することにより、酸素原子のピーク面積が著しく増加す
る事が明らかである。FIG. 1 shows an example of the oxygen atom measurement results of the polybenzobisoxazole multifilament prepared in Example 1 of the present invention (Sample 4 in Table 1) and Comparative Example 1 by an X-ray electron spectrometer. is there. It is clear that the peak area of oxygen atoms is significantly increased by subjecting the sample to corona discharge treatment.
【００２４】[0024]
【表１】 [Table 1]
【００２５】実施例２ 実施例１で作成、コロナ放電処理を施した各ポリベンゾ
ビスオキサゾール繊維を撚数４９×４９（回／１０ｃ
ｍ）の双糸となし、乳化剤として、ジドデシルスルホサ
クシネートナトリウム塩を０．２重量％添加したグリセ
リンとエピクリルヒドリンとの反応物であるエポキシ樹
脂（長瀬産業社製、ディナコールＥＸ３１３）の２重量
％分散液を第１処理液（１浴）とし、第２処理液（２
浴）として、ＲＦＬ（レゾルシン５．７重量部とを水１
８５．７重量部に加え、２５℃で６時間熟成後にニッポ
ール２５１８ＦＳ（日本ゼオン社製 ブタジエン−スチ
レン−ビニルピリジン共重合ラテックス 固形分４１
％）を用いて、１浴乾燥温度１３０℃、乾燥時間５０
秒、熱処理温度２２０℃、熱処理時間５０秒にて、２浴
乾燥温度１３０℃、乾燥時間５０秒、熱処理温度５０
秒、ストレッチ率０％の条件でディップ処理を行った。
ディップ処理後、ゴム中に埋め込み、加硫処理を行った
後引き抜き試験を行い、ゴムとの接着製を評価した。測
定結果を第２表に示す。Example 2 Each polybenzobisoxazole fiber prepared in Example 1 and subjected to corona discharge treatment had a twist number of 49 × 49 (times / 10 c).
m) a twine, an epoxy resin (Dinacol EX313, Nagase & Co., Ltd.), which is a reaction product of glycerin and epicrylhydrin with 0.2% by weight of sodium salt of didodecylsulfosuccinate added as an emulsifier. 2% by weight of the dispersion liquid as the first treatment liquid (1 bath), and the second treatment liquid (2
As a bath, RFL (5.7 parts by weight of resorcinol) and water 1
In addition to 85.7 parts by weight, after aging at 25 ° C. for 6 hours, Nipol 2518FS (Nippon Zeon Co., Ltd. butadiene-styrene-vinylpyridine copolymer latex solid content 41)
%), 1 bath drying temperature 130 ° C., drying time 50
Second, heat treatment temperature 220 ° C., heat treatment time 50 sec, 2 bath drying temperature 130 ° C., drying time 50 sec, heat treatment temperature 50
The dip treatment was performed under the conditions of second and stretch ratio of 0%.
After the dip treatment, it was embedded in rubber, vulcanized, and then subjected to a pull-out test to evaluate the adhesiveness with rubber. The measurement results are shown in Table 2.
【００２６】比較例２ 実施例１で作成したポリベンゾビスオキサゾールマルチ
フィラメントを、何の処理も施されずに試料とし、実施
例２と同一の条件でディップ処理を行い、加硫処理後、
引き抜き試験によりゴムとの接着性を評価した。測定結
果を第２表に示す。Comparative Example 2 The polybenzobisoxazole multifilament prepared in Example 1 was used as a sample without any treatment, and was subjected to dip treatment under the same conditions as in Example 2 and after vulcanization treatment,
Adhesion with rubber was evaluated by a pull-out test. The measurement results are shown in Table 2.
【００２７】[0027]
【表２】 [Table 2]
【００２８】[0028]
【発明の効果】本発明によれば、従来に無い、高い引張
強度と引張弾性率を有し、かつ接着性に優れたポリベン
ゾビスオキサゾール繊維を得る事ができる。EFFECTS OF THE INVENTION According to the present invention, it is possible to obtain a polybenzobisoxazole fiber which has a high tensile strength and a tensile elastic modulus which are unprecedented and which is excellent in adhesiveness.
【図１】本発明の実施例１（第１表の試料４）及び比較
例１で作成したポリベンゾビスオキサゾールマルチフィ
ラメントの、Ｘ線電子分光装置（ＥＳＣＡ）による酸素
原子の測定結果の一例である。FIG. 1 is an example of measurement results of oxygen atoms by an X-ray electron spectrometer (ESCA) of the polybenzobisoxazole multifilament prepared in Example 1 of the present invention (Sample 4 in Table 1) and Comparative Example 1. is there.
Claims (2)
少なくとも１４０ＧＰａの引張弾性率を有し、かつフィ
ラメント表面の酸素原子数の炭素原子数に対する比（０
／Ｃ）が０．２０以上であることを特徴とする接着性の
改良されたポリベンゾビスオキサゾール繊維。1. A tensile strength of at least 4.0 GPa,
It has a tensile elastic modulus of at least 140 GPa and the ratio of the number of oxygen atoms on the filament surface to the number of carbon atoms (0
/ C) is 0.20 or more, a polybenzobisoxazole fiber with improved adhesion.
少なくとも１４０ＧＰａの引張弾性率を有するポリベン
ゾビスオキサゾール繊維をコロナ放電処理する事を特徴
とする、接着性の改良されたポリベンゾビスオキサゾー
ル繊維の製造方法。2. A tensile strength of at least 4.0 GPa,
A method for producing a polybenzobisoxazole fiber having improved adhesiveness, which comprises subjecting a polybenzobisoxazole fiber having a tensile elastic modulus of at least 140 GPa to corona discharge treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16711493A JPH0726415A (en) | 1993-07-06 | 1993-07-06 | Polybenzobisoxazole fiber having improved adhesiveness and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16711493A JPH0726415A (en) | 1993-07-06 | 1993-07-06 | Polybenzobisoxazole fiber having improved adhesiveness and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0726415A true JPH0726415A (en) | 1995-01-27 |
Family
ID=15843701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16711493A Pending JPH0726415A (en) | 1993-07-06 | 1993-07-06 | Polybenzobisoxazole fiber having improved adhesiveness and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0726415A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003064737A1 (en) * | 2002-01-28 | 2003-08-07 | Toyo Boseki Kabushiki Kaisha | Polybenzazole fiber and production method therefor |
| KR20140060345A (en) * | 2011-09-06 | 2014-05-19 | 허니웰 인터내셔널 인코포레이티드 | High performance ballistic composites and method of making |
| KR20140072082A (en) * | 2011-09-06 | 2014-06-12 | 허니웰 인터내셔널 인코포레이티드 | Low bfs composite and process for making the same |
| KR20140072885A (en) * | 2011-09-06 | 2014-06-13 | 허니웰 인터내셔널 인코포레이티드 | A surface treated yarn and fabric with enhanced physical and adhesion properties and the process of making |
| US9718237B2 (en) | 2011-09-06 | 2017-08-01 | Honeywell International Inc. | Rigid structure UHMWPE UD and composite and the process of making |
| US9821515B2 (en) | 2011-09-06 | 2017-11-21 | Honeywell International Inc. | High lap shear strength, low back face signature UD composite and the process of making |
| US9880080B2 (en) | 2011-09-06 | 2018-01-30 | Honeywell International Inc. | Rigid structural and low back face signature ballistic UD/articles and method of making |
-
1993
- 1993-07-06 JP JP16711493A patent/JPH0726415A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003064737A1 (en) * | 2002-01-28 | 2003-08-07 | Toyo Boseki Kabushiki Kaisha | Polybenzazole fiber and production method therefor |
| KR20140060345A (en) * | 2011-09-06 | 2014-05-19 | 허니웰 인터내셔널 인코포레이티드 | High performance ballistic composites and method of making |
| KR20140072082A (en) * | 2011-09-06 | 2014-06-12 | 허니웰 인터내셔널 인코포레이티드 | Low bfs composite and process for making the same |
| KR20140072885A (en) * | 2011-09-06 | 2014-06-13 | 허니웰 인터내셔널 인코포레이티드 | A surface treated yarn and fabric with enhanced physical and adhesion properties and the process of making |
| JP2014529017A (en) * | 2011-09-06 | 2014-10-30 | ハネウェル・インターナショナル・インコーポレーテッド | Surface-treated yarns and fabrics having improved physical and adhesive properties and manufacturing methods |
| JP2014529691A (en) * | 2011-09-06 | 2014-11-13 | ハネウェル・インターナショナル・インコーポレーテッド | Low BFS composite material and method for producing the same |
| US9718237B2 (en) | 2011-09-06 | 2017-08-01 | Honeywell International Inc. | Rigid structure UHMWPE UD and composite and the process of making |
| US9821515B2 (en) | 2011-09-06 | 2017-11-21 | Honeywell International Inc. | High lap shear strength, low back face signature UD composite and the process of making |
| US9880080B2 (en) | 2011-09-06 | 2018-01-30 | Honeywell International Inc. | Rigid structural and low back face signature ballistic UD/articles and method of making |
| US10562238B2 (en) | 2011-09-06 | 2020-02-18 | Honeywell International Inc. | High lap shear strength, low back face signature UD composite and the process of making |
| US11027501B2 (en) | 2011-09-06 | 2021-06-08 | Honeywell International Inc. | High lap shear strength, low back face signature UD composite and the process of making |
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