JPS6363748A - Monoaxially oriented polyamide resin sheet - Google Patents
Monoaxially oriented polyamide resin sheetInfo
- Publication number
- JPS6363748A JPS6363748A JP20781386A JP20781386A JPS6363748A JP S6363748 A JPS6363748 A JP S6363748A JP 20781386 A JP20781386 A JP 20781386A JP 20781386 A JP20781386 A JP 20781386A JP S6363748 A JPS6363748 A JP S6363748A
- Authority
- JP
- Japan
- Prior art keywords
- polyamide
- sheet
- resin
- polyamide resin
- monoaxially oriented
- 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
- 229920006122 polyamide resin Polymers 0.000 title claims abstract description 27
- 239000004952 Polyamide Substances 0.000 claims abstract description 20
- 229920002647 polyamide Polymers 0.000 claims abstract description 20
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 15
- 229920000570 polyether Polymers 0.000 claims abstract description 15
- 229920006026 co-polymeric resin Polymers 0.000 claims abstract description 11
- 229920005989 resin Polymers 0.000 abstract description 10
- 239000011347 resin Substances 0.000 abstract description 10
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 239000000203 mixture Substances 0.000 abstract description 6
- 229920002292 Nylon 6 Polymers 0.000 abstract description 2
- 239000002202 Polyethylene glycol Substances 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 abstract description 2
- 229920001223 polyethylene glycol Polymers 0.000 abstract description 2
- 229920001451 polypropylene glycol Polymers 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract 2
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 abstract 1
- 229920000299 Nylon 12 Polymers 0.000 abstract 1
- 238000005452 bending Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012643 polycondensation polymerization Methods 0.000 description 2
- 239000012744 reinforcing agent Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- MKYBYDHXWVHEJW-UHFFFAOYSA-N N-[1-oxo-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propan-2-yl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(C(C)NC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 MKYBYDHXWVHEJW-UHFFFAOYSA-N 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920000571 Nylon 11 Polymers 0.000 description 1
- 229920000305 Nylon 6,10 Polymers 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 150000004985 diamines Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009661 fatigue test Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 150000003951 lactams Chemical class 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- -1 polytetramethylene Polymers 0.000 description 1
- 238000007151 ring opening polymerisation reaction Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は耐屈曲疲労性に優れた一軸配向ポリアミド系樹
脂シートに関するものであり、特に動力伝達用および搬
送用ベルトとして好適な基材に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a uniaxially oriented polyamide resin sheet with excellent bending fatigue resistance, and particularly to a base material suitable for power transmission and conveyance belts. It is.
動力伝達用および搬送用ベルトには、弾性率および強度
向上を目的として一軸配向をおこなったポリアミド樹脂
シートが従来使用されている。また−軸配向度をより高
めて弾性率および強度を更に上げることによってベルト
の厚みを減らすことが可能となり、曲げ方向に対して柔
軟性の有るベルト基材が得られ使用されている。Polyamide resin sheets uniaxially oriented to improve elastic modulus and strength have conventionally been used for power transmission and conveyance belts. Further, by further increasing the degree of axial orientation and further increasing the elastic modulus and strength, it is possible to reduce the thickness of the belt, and a belt base material that is flexible in the bending direction is obtained and used.
−〇ｊｌ配向ポリアミド樹脂シートを用いた動力伝達用
および搬送用ベルトを長時間使用すると、その−軸配向
ポリアミド樹脂ソートの内側面に亀裂が発生しベルトの
切断に結びつく事があり、−軸配向度のより高い高強度
・高弾性率ポリアミド樹脂シートの方がその傾向は顕著
である。If a power transmission or conveyance belt made of a -axis-oriented polyamide resin sheet is used for a long time, cracks may occur on the inner surface of the -axis-oriented polyamide resin sheet, leading to the belt being cut. This tendency is more pronounced in high-strength, high-modulus polyamide resin sheets with higher degrees of elasticity.
本現象の発生理由として、動力伝達用および搬送用ベル
トにはプーリーに巻きついていない時は引張応力、プー
リーに巻きついている時にそのベルトの内側には圧縮応
力が、繰り返して交互に作用しているためであり、耐屈
曲疲労性が一軸配向ポリアミド樹脂シートにとって重量
な特性である。The reason for this phenomenon is that tensile stress is applied repeatedly and alternately to power transmission and conveyor belts when they are not wrapped around the pulley, and compressive stress is applied to the inside of the belt when it is wrapped around the pulley. This is because bending fatigue resistance is an important characteristic for uniaxially oriented polyamide resin sheets.
しかしながら、従来のポリアミド樹脂シートでは高強度
・高弾性率を得るためにシートの一軸配向度を過度に高
めるとそのシートの耐屈曲疲労性が劣るという問題点が
発生し、−軸配向度には限界が有った。However, in conventional polyamide resin sheets, if the degree of uniaxial orientation of the sheet is excessively increased in order to obtain high strength and high modulus of elasticity, a problem arises in that the sheet has poor bending fatigue resistance. There was a limit.
本発明の目的は、従来のポリアミド樹脂シートの問題を
解決するものであり、具体的には、−軸配向ポリアミド
樹脂シートが本来有している高強度でかつ高弾性を保持
したまま耐屈曲疲労性が著しく優れた一軸配向ポリアミ
ド系樹脂シートを提供することにある。The purpose of the present invention is to solve the problems of conventional polyamide resin sheets, and specifically, to improve bending fatigue resistance while maintaining the high strength and high elasticity inherent to -axis oriented polyamide resin sheets. An object of the present invention is to provide a uniaxially oriented polyamide resin sheet having extremely excellent properties.
本発明は上記目的を達成するために、ポリアミド樹脂５
０−９５重量％とポリアミド／ポリエーテル共重合体樹
脂５０−５重量％とを配合してなる一軸配向ポリアミド
系樹脂シートを提供するにある。In order to achieve the above object, the present invention is made of polyamide resin 5
The object of the present invention is to provide a uniaxially oriented polyamide resin sheet comprising 0 to 95% by weight of a polyamide/polyether copolymer resin and 50 to 5% by weight of a polyamide/polyether copolymer resin.
本発明におけるポリアミド樹脂とは、ラクタムの開環重
合、ジアミンとジカルボン酸との縮合重合あるいはアミ
ノ酸の縮合重合により得られた熱可塑性樹脂で代表的例
として、ナイロン６、ナイロン６６、ナイロン１１、ナ
イロン１２、ナイロン６１０が挙げられる。The polyamide resin in the present invention is a thermoplastic resin obtained by ring-opening polymerization of lactam, condensation polymerization of diamine and dicarboxylic acid, or condensation polymerization of amino acids, and typical examples thereof include nylon 6, nylon 66, nylon 11, and nylon. 12 and nylon 610.
本発明におけるポリアミド／ポリエーテル共重合体樹脂
とは上記に記述したポリアミドとポリエチレングリコー
ル、ポリプロピレンクリコール、ポリテトラメチレング
リコール等で示されるポリエーテルとの共重合により得
られる。The polyamide/polyether copolymer resin in the present invention is obtained by copolymerizing the above-described polyamide with a polyether such as polyethylene glycol, polypropylene glycol, polytetramethylene glycol, or the like.
この樹脂においてポリアミドとポリエーテルは２０：８
０〜７０：３０の重量比を有するのが好ましい。ポリア
ミドが多量の場合は耐屈曲性の向上が少なく、またポリ
エーテルが少ないとシートの弾性率が低くなるので好ま
しくない。In this resin, polyamide and polyether are 20:8
It is preferred to have a weight ratio of 0 to 70:30. If the amount of polyamide is too large, the bending resistance will not be improved much, and if the amount of polyether is too little, the elastic modulus of the sheet will be low, which is not preferable.
ポリアミド／ポリエーテル共重合体樹脂の添加量は５−
５０重量％の範囲が望ましく、５重量％より少量ならば
、耐屈曲疲労性の改良効果はほとんどない。また５０重
量％より多量ならば弾性率の低下が大きく動力伝達用お
よび搬送用ベルトとして実用にたえない。The amount of polyamide/polyether copolymer resin added is 5-
A range of 50% by weight is desirable, and if the amount is less than 5% by weight, there will be little effect of improving bending fatigue resistance. Moreover, if the amount is more than 50% by weight, the elastic modulus decreases so much that it is not practical as a power transmission or conveyance belt.
本発明の一軸配向ボリアミド系シートをえるために、ポ
リアミド樹脂５０−９５重重量にポリアミド／ポリエー
テル共重合体樹脂５０−５重量％を混合した物を溶融押
出し、シート上に成形した後に一軸方向に延伸あるいは
圧延することによって得ることができる。In order to obtain the uniaxially oriented polyamide sheet of the present invention, a mixture of 50-95% by weight of polyamide resin and 50-5% by weight of polyamide/polyether copolymer resin is melt-extruded, and after being molded onto a sheet, it is uniaxially oriented. It can be obtained by stretching or rolling.
ゝｈアミド樹脂に他樹脂を混合すると、樹脂同士の相溶
性が悪く、−軸配向工程時に切断が重合体樹脂を配合し
た場合の相溶性は非常に良く、−軸配向時になんら問題
ない。When other resins are mixed with the amide resin, the resins have poor compatibility with each other, but when a polymer resin is blended with cutting during the -axis orientation process, the compatibility is very good and there is no problem during -axis orientation.
ポリアミド系樹脂シートを一軸方向に配向する方法とし
て、延伸あるいは圧延方法が挙げられ、前者はロール間
の速度差を利用するものであり、後者は加圧あるいは間
隙を規定された一対のロール間を樹脂シートを通過させ
る方法である。Methods for orienting a polyamide resin sheet in a uniaxial direction include stretching or rolling. The former uses a speed difference between rolls, and the latter uses pressure or a gap between a pair of rolls with a defined gap. This is a method in which a resin sheet is passed through.
また延伸と圧延を併用して、えられた樹脂シートも本発
明に含まれる。The present invention also includes a resin sheet obtained by using both stretching and rolling.
ポリアミド樹脂とポリアミド／ポリエーテル共重合体樹
脂との混合物には必要に応じて、小量の滑剤、核剤、難
燃剤、着色剤、可塑剤、耐熱剤、帯電防止剤、耐候剤、
ガラス繊維等の強化剤、補強剤等を添加することも可能
である。The mixture of polyamide resin and polyamide/polyether copolymer resin may contain small amounts of lubricant, nucleating agent, flame retardant, coloring agent, plasticizer, heat resistant agent, antistatic agent, weathering agent,
It is also possible to add reinforcing agents such as glass fibers, reinforcing agents, etc.
以下、実施例および比較例に基づいて、本発明の実施態
様を説明するが、本発明はこれらの実施例に限定される
ものではない。Hereinafter, embodiments of the present invention will be described based on Examples and Comparative Examples, but the present invention is not limited to these Examples.
実施例１−４、比較例１−２
表１に示す材料配合で均一に混合をおこなった後に、押
出機でＴダイを用いて溶融押出し、シート上に成型した
後に一軸方向に４倍の延伸をおこなった。Example 1-4, Comparative Example 1-2 After uniformly mixing the material composition shown in Table 1, it was melt-extruded using a T-die in an extruder, and after being formed into a sheet, it was stretched 4 times in the uniaxial direction. was carried out.
しかる後、得られた一軸配向樹脂シートから試験片を切
り出し、屈曲疲労試験および引張試験を行なった。Thereafter, test pieces were cut out from the obtained uniaxially oriented resin sheet and subjected to a bending fatigue test and a tensile test.
その結果を表２に示すが、ポリアミド樹脂にポリアミド
／ポリエーテル共重合体樹脂を添加した一軸配向樹脂シ
ートの方が耐屈曲疲労性に優れていることが明白である
。The results are shown in Table 2, and it is clear that the uniaxially oriented resin sheet prepared by adding polyamide/polyether copolymer resin to polyamide resin has better bending fatigue resistance.
Ｉ ′配Ａ几
７主１ンポリアミド／ポリ工−テル共重合［１１旨注
１）温変２３℃ 湿度６５％ＲＨ平１１状態水分測定方
カールフィシャー法
２）試験片 ２０ｍｎ＋ ｘ ０．７５ｍｍ Ｘ
３００ｍｍ歪速度 ２ｓ％／分
３）５％歪の割線弾性率
４） ＪＩＳ Ｘ６３０１準処 デーマチャー法試験片
ＪＩＳ １号 １／２ サイズ ノツチ無
試験速度 ３００回／分 ストＵ−り１０ｍｍ〔発明の
効果〕
本発明の一軸配向ボリフミド系樹脂シートは、相溶性の
良好なポリアミド樹脂とポリアミド／ポリエーテル共重
合体樹脂からなるため、−軸配向ポリアミド樹脂シート
が木来有している高強度、高弾性を維持しながら耐屈曲
性が著しく優れているという顕著な効果を呈する。I 'Scheme A 7 Mainly polyamide/polyester copolymerization [Note 11
1) Temperature change: 23°C, humidity: 65% RH, Hei 11 condition Moisture measurement method: Karl Fischer method 2) Test piece: 20mm+ x 0.75mm
300mm strain rate 2s%/min3) Secant modulus of elasticity at 5% strain4) JIS ] Since the uniaxially oriented polyamide resin sheet of the present invention is composed of a polyamide resin and a polyamide/polyether copolymer resin that have good compatibility, it has the high strength and high elasticity that -axis oriented polyamide resin sheets have. It exhibits the remarkable effect of extremely excellent bending resistance while maintaining the same properties.
従って、この−軸配向ボリアミド系＋′Ａ脂シートは、
動力伝達用および、搬送用ヘルドとして好適である。Therefore, this -axis-oriented polyamide +'A resin sheet is
Suitable as a heald for power transmission and transportation.
Claims (1)
ーテル共重合体樹脂５０−５重量％とを配合してなる一
軸配向ポリアミド系樹脂シート。A uniaxially oriented polyamide resin sheet comprising 50-95% by weight of a polyamide resin and 50-5% by weight of a polyamide/polyether copolymer resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20781386A JPS6363748A (en) | 1986-09-05 | 1986-09-05 | Monoaxially oriented polyamide resin sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20781386A JPS6363748A (en) | 1986-09-05 | 1986-09-05 | Monoaxially oriented polyamide resin sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6363748A true JPS6363748A (en) | 1988-03-22 |
Family
ID=16545927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20781386A Pending JPS6363748A (en) | 1986-09-05 | 1986-09-05 | Monoaxially oriented polyamide resin sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6363748A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5416171A (en) * | 1993-03-22 | 1995-05-16 | Industrial Technology Research Institute | Blending compositions of polyamides and block copolyetheramides |
| WO1996017003A1 (en) * | 1994-12-02 | 1996-06-06 | Elf Atochem S.A. | Polyamide block and polyether block polyamide and polymer based films |
| EP0780594A1 (en) * | 1995-12-21 | 1997-06-25 | Elf Atochem S.A. | Antistatic belts |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5190370A (en) * | 1975-02-06 | 1976-08-07 | NIJIKUENSHINHORIAMIDOFUIRUMUNOSEIZOHO | |
| JPS59193957A (en) * | 1983-04-18 | 1984-11-02 | Dainippon Ink & Chem Inc | Polyamide composition |
-
1986
- 1986-09-05 JP JP20781386A patent/JPS6363748A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5190370A (en) * | 1975-02-06 | 1976-08-07 | NIJIKUENSHINHORIAMIDOFUIRUMUNOSEIZOHO | |
| JPS59193957A (en) * | 1983-04-18 | 1984-11-02 | Dainippon Ink & Chem Inc | Polyamide composition |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5416171A (en) * | 1993-03-22 | 1995-05-16 | Industrial Technology Research Institute | Blending compositions of polyamides and block copolyetheramides |
| WO1996017003A1 (en) * | 1994-12-02 | 1996-06-06 | Elf Atochem S.A. | Polyamide block and polyether block polyamide and polymer based films |
| US5936044A (en) * | 1994-12-02 | 1999-08-10 | Elf Atochem S.A. | Films based on polyamide and on polymers containing polyamide blocks and polyether blocks |
| AT406681B (en) * | 1994-12-02 | 2000-07-25 | Atochem Elf Sa | FILMS BASED ON POLYAMIDE AND POLYMERS WITH POLYAMIDE AND POLYETHER BLOCKS |
| CN1071354C (en) * | 1994-12-02 | 2001-09-19 | 埃勒夫阿托化学有限公司 | Polyamide block and polyether block polyamide and polymer based films |
| KR100318108B1 (en) * | 1994-12-02 | 2002-05-16 | 아토피나 | Polyamide block and polyether block polyamide and polymer substrate film |
| EP0780594A1 (en) * | 1995-12-21 | 1997-06-25 | Elf Atochem S.A. | Antistatic belts |
| US5830983A (en) * | 1995-12-21 | 1998-11-03 | Elf Atochem S.A. | Antistatic belts |
| US6018015A (en) * | 1995-12-21 | 2000-01-25 | Elf Atochem S.A. | Antistatic belts |
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