WO2010026356A1 - Procédé de détermination de la tenue à la fatigue d'une composition polymérique - Google Patents
Procédé de détermination de la tenue à la fatigue d'une composition polymérique Download PDFInfo
- Publication number
- WO2010026356A1 WO2010026356A1 PCT/FR2009/051691 FR2009051691W WO2010026356A1 WO 2010026356 A1 WO2010026356 A1 WO 2010026356A1 FR 2009051691 W FR2009051691 W FR 2009051691W WO 2010026356 A1 WO2010026356 A1 WO 2010026356A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polymeric composition
- test
- cycles
- elongation
- polymeric
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0073—Fatigue
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0092—Visco-elasticity, solidification, curing, cross-linking degree, vulcanisation or strength properties of semi-solid materials
- G01N2203/0094—Visco-elasticity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0298—Manufacturing or preparing specimens
Definitions
- This metal inner layer which gives shape to the pipe, is coated, generally by extrusion, with a polymer layer intended to provide sealing.
- a polymer layer intended to provide sealing.
- Other protective and / or reinforcing layers such as metal fiber webs and rubbers may also be arranged around the sealed polymer layer.
- the polymer is HDPE (high density polyethylene).
- polyamide is used; up to 90 ° C.
- Cross-linked polyethylene (PEX) can also be used when the pressure is not too great.
- PVDF polyvinylidene fluoride
- VDF vinylidene fluoride
- the polymeric composition according to the invention comprising at least one semi-crystalline thermoplastic polymer having a glass transition temperature (Tg) of less than or equal to 130 ° C., preferably less than or equal to 110 ° C.
- Tg glass transition temperature
- the glass transition temperature can be measured by differential scanning calorimetry (DSC).
- DSC differential scanning calorimetry
- the polymeric composition of the invention may also contain additives. As an additive it is possible to choose plasticizers, impact modifiers and mixtures thereof.
- the semicrystalline thermoplastic polymer having a glass transition temperature (Tg) of less than or equal to 130 ° C. may be chosen, without limitation, from: polyolefins such as polyethylene and polypropylene;
- thermoplastic polyurethanes TPU
- polyethylene terephthalate or butylene TPU
- silicone polymers TPU
- a shock modifier of the core-shell type comprises at least one inner layer of a soft polymer and a bark based on an acrylic polymer (that is, the outer layer also refers to acrylic bark).
- Acrylic polymer means polymers that contain methacrylic and / or acrylic monomers.
- the impact modifier is in the form of particles whose average diameter generally is at most 1 micron, preferably between 50 and 400 nm.
- FIG. 1 shows a sectional view of a flexible metal pipe comprising a layer of the polymeric composition (1) covering a metal carcass (3), all reinforced by an armor (2).
- Fig. 3 schematically shows a servohydraulic dynamometer with a specimen.
- the relationship between the minimum radius a and the radius of curvature a / R is 0.05 to 10, preferably 0.2 to 1 and more preferably 0.4 to 0.6.
- the maximum diameter d_ is greater than 2 times the minimum radius a and preferably ranging from 2 ⁇ + 0.5R to 2 ⁇ + 2R.
- the curvature radius R is 0.5 mm to 10 mm, preferably 3 mm to 5 mm and typically 4 mm; each test piece has a minimum radius a varying from 0.5 mm to 5 mm, preferably 1.5 mm to 2.5 mm and typically 2 mm; and the Maximum diameter d is chosen from 2mm to 30mm, preferably 6mm to 10mm and typically 7mm.
- the fatigue test according to the invention consists in biasing the test pieces to a tensile fatigue test consisting of an elongation along the longitudinal axis z, with a sinusoidal signal of frequency ranging from 0.05 Hz to 5 Hz, preferably from 0 , 5Hz to 2Hz and typically IHz, at a temperature ranging from -15 ° C to 23 ° C, preferably from -15 ° C to
- the maximum elongation is chosen from 0.2 mm to 4 mm, preferably from 0.3 mm to
- the minimum elongation of the fatigue test is determined by the ratio between the minimum elongation and the maximum elongation of the cycle. This ratio varies from greater than or equal to 0 up to 0.8 and preferably up to 0.5, and advantageously up to 0.25 and is typically 0.21.
- composition which has an average number of cycles to failure is retained on several test specimens> 500, preferably> 1000, advantageously> 5000, and even more preferred> 10000.
- NCR average number of cycles to failure
- the polymeric composition selected by the determination method according to the invention can be used for the manufacture of pipes or conduits intended to convey a fluid under pressure and / or corrosive.
- ® KYNAR ® 400HDCM800 PVDF bimodal homopolymer marketed by ARKEMA.
- This product contains DURASTRENGTH ® D200: heart-bark shock modifier marketed by ARKEMA having a soft inner layer of T g
- EXL ® 2650 in place of the Durastrength, which is a shock modifier marketed by ROHM & HAAS having a soft inner layer of T g ⁇ - 60 ° C.
- ® KYNAR ® 50HDP900 PVDF bimodal homopolymer marketed by ARKEMA. containing DBS.
- KYNAR FLEX ® 3120-50 copolymer of 90% by weight VDF and 10% by weight HFP
- Composition A 89% KYNAR 50 and 11% DBS
- composition C 100% KYNAR FLEX 3120-50 Composition D: 92% KYNAR 400 and 5% EXL 2650 and 3% DBS Composition E: 95% KYNAR 400 and 2% D200 and 3% DBS
- compositions A to E according to the Charpy test differs from that made on the basis of the fatigue test according to the invention.
- the design of a new polymeric composition will be different depending on whether the Charpy test or the fatigue test according to the invention is chosen as a criterion.
- composition C has a higher TDF
- the latter has a fatigue RCR (measured according to the process of the invention) lower than that of the composition C.
- the fatigue test according to the invention makes it possible to demonstrate the interest of the composition C with respect to the composition E, to withstand the actual fatigue conditions existing in the offshore hoses.
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2009289117A AU2009289117B2 (en) | 2008-09-08 | 2009-09-08 | Method for predetermining the fatigue life of polymer composition |
BRPI0913473A BRPI0913473A2 (pt) | 2008-09-08 | 2009-09-08 | "processo para avaliar a resistência a fadiga de uma composição de polímero, uso de uma composição de polímero, conduto de metal flexível e uso de espécimes axissimétricos fendidos de teste" |
JP2011525604A JP5395176B2 (ja) | 2008-09-08 | 2009-09-08 | ポリマー組成物の疲労寿命を設定する方法 |
CA2735847A CA2735847C (fr) | 2008-09-08 | 2009-09-08 | Procede de determination de la tenue a la fatigue d'une composition polymerique |
US13/062,615 US8627713B2 (en) | 2008-09-08 | 2009-09-08 | Method for predetermining the fatigue life of polymer composition |
EP09741385A EP2324335A1 (fr) | 2008-09-08 | 2009-09-08 | Procédé de détermination de la tenue à la fatigue d'une composition polymérique |
CN2009801341000A CN102144152A (zh) | 2008-09-08 | 2009-09-08 | 预先确定聚合物组合物的疲劳寿命的方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0856029A FR2935801B1 (fr) | 2008-09-08 | 2008-09-08 | Procede de determination de la tenue a la fatigue d'une composition polymerique |
FR0856029 | 2008-09-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010026356A1 true WO2010026356A1 (fr) | 2010-03-11 |
Family
ID=40902865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2009/051691 WO2010026356A1 (fr) | 2008-09-08 | 2009-09-08 | Procédé de détermination de la tenue à la fatigue d'une composition polymérique |
Country Status (10)
Country | Link |
---|---|
US (1) | US8627713B2 (fr) |
EP (1) | EP2324335A1 (fr) |
JP (1) | JP5395176B2 (fr) |
CN (1) | CN102144152A (fr) |
AU (1) | AU2009289117B2 (fr) |
BR (1) | BRPI0913473A2 (fr) |
CA (1) | CA2735847C (fr) |
FR (1) | FR2935801B1 (fr) |
MY (1) | MY172742A (fr) |
WO (1) | WO2010026356A1 (fr) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013128110A1 (fr) | 2012-03-01 | 2013-09-06 | Technip France | Structure tubulaire flexible d'exploitation petroliere a haute tenue |
WO2015028765A1 (fr) | 2013-09-02 | 2015-03-05 | Arkema France | Procede de preparation d'une composition de polymeres fluores reticules |
WO2015028761A1 (fr) | 2013-09-02 | 2015-03-05 | Arkema France | Composition de polymeres fluores thermoplastiques pour les tubes off-shore |
CN109883823A (zh) * | 2019-01-21 | 2019-06-14 | 吉林大学 | 金属圆棒试样单轴拉伸应力应变的双曲线反推测量方法 |
CN109883824A (zh) * | 2019-01-21 | 2019-06-14 | 吉林大学 | 金属圆棒试样单轴拉伸应力应变的圆弧反推测量方法 |
CN112414832A (zh) * | 2020-11-19 | 2021-02-26 | 中国石油天然气集团有限公司 | 多层共挤塑料管耐温性能测试装置及方法 |
Families Citing this family (10)
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US8210052B1 (en) * | 2010-05-20 | 2012-07-03 | The United States Of America As Represented By The Secretary Of The Navy | Method for forecasting the fatigue damage of a solid rocket motor through ignition |
FR2987624B1 (fr) | 2012-03-01 | 2015-02-20 | Arkema France | Composition polymerique fluoree |
US20150041145A1 (en) * | 2012-03-26 | 2015-02-12 | Solvay Specialty Polymers Italy S.P.A. | Fluoropolymer pipe |
RU2529780C2 (ru) * | 2012-12-11 | 2014-09-27 | Открытое акционерное общество Башкирское Конструкторское Бюро "Нефтехимавтоматика" (ОАО БСКБ "Нефтехимавтоматика") | Машина для испытаний материалов на ползучесть и длительную прочность (варианты) |
CN105571941B (zh) * | 2014-10-30 | 2023-08-29 | 深圳信立泰医疗器械股份有限公司 | 用于聚合物小管材环向拉伸测试的模具及其测试方法 |
EP3115767B1 (fr) * | 2015-07-06 | 2020-06-24 | MW Italia S.r.l. | Procédé pour la caractérisation mécanique d'un matériau métallique pour la production d'un disque de roue |
CN105547853A (zh) * | 2015-11-20 | 2016-05-04 | 江南大学 | 一种可测试流体应力应变曲线的装置 |
CN105445116B (zh) * | 2015-12-31 | 2018-01-05 | 西南交通大学 | 一种聚合物材料室高温多轴循环试验装置 |
JP6809213B2 (ja) * | 2016-12-27 | 2021-01-06 | 日本製鉄株式会社 | 試験方法、試験片の製造方法、及び試験片 |
CN108064335A (zh) * | 2017-09-28 | 2018-05-22 | 广州特种承压设备检测研究院 | 塑料管材寿命评价方法 |
Citations (4)
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WO1993022651A1 (fr) * | 1992-05-04 | 1993-11-11 | Center For Innovative Technology | Mesure dynamique de la resistance d'un materiau et de sa longevite sous des charges cycliques |
EP0884358B1 (fr) * | 1997-06-12 | 2003-07-23 | Atofina | Compositions à base de poly(fluorure de vinylidène), souples et résilientes, leur procédé de préparation |
EP0608939B1 (fr) * | 1993-01-25 | 2006-04-26 | SOLVAY (Société Anonyme) | Compositions polymériques destinées à la fabrication de tuyaux pour le transport d'hydrocarbures et articles à base de ces compositions |
EP1342754B1 (fr) * | 2002-03-04 | 2008-03-26 | Arkema France | Composition à base de polyamide pour des tuyaux flexibles contenant du pétrole ou du gaz |
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-
2008
- 2008-09-08 FR FR0856029A patent/FR2935801B1/fr active Active
-
2009
- 2009-09-08 WO PCT/FR2009/051691 patent/WO2010026356A1/fr active Application Filing
- 2009-09-08 BR BRPI0913473A patent/BRPI0913473A2/pt not_active Application Discontinuation
- 2009-09-08 JP JP2011525604A patent/JP5395176B2/ja not_active Expired - Fee Related
- 2009-09-08 CN CN2009801341000A patent/CN102144152A/zh active Pending
- 2009-09-08 EP EP09741385A patent/EP2324335A1/fr not_active Ceased
- 2009-09-08 MY MYPI2011001024A patent/MY172742A/en unknown
- 2009-09-08 AU AU2009289117A patent/AU2009289117B2/en not_active Ceased
- 2009-09-08 US US13/062,615 patent/US8627713B2/en not_active Expired - Fee Related
- 2009-09-08 CA CA2735847A patent/CA2735847C/fr not_active Expired - Fee Related
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WO1993022651A1 (fr) * | 1992-05-04 | 1993-11-11 | Center For Innovative Technology | Mesure dynamique de la resistance d'un materiau et de sa longevite sous des charges cycliques |
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EP0884358B1 (fr) * | 1997-06-12 | 2003-07-23 | Atofina | Compositions à base de poly(fluorure de vinylidène), souples et résilientes, leur procédé de préparation |
EP1342754B1 (fr) * | 2002-03-04 | 2008-03-26 | Arkema France | Composition à base de polyamide pour des tuyaux flexibles contenant du pétrole ou du gaz |
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Title |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013128110A1 (fr) | 2012-03-01 | 2013-09-06 | Technip France | Structure tubulaire flexible d'exploitation petroliere a haute tenue |
WO2015028765A1 (fr) | 2013-09-02 | 2015-03-05 | Arkema France | Procede de preparation d'une composition de polymeres fluores reticules |
WO2015028761A1 (fr) | 2013-09-02 | 2015-03-05 | Arkema France | Composition de polymeres fluores thermoplastiques pour les tubes off-shore |
CN109883823A (zh) * | 2019-01-21 | 2019-06-14 | 吉林大学 | 金属圆棒试样单轴拉伸应力应变的双曲线反推测量方法 |
CN109883824A (zh) * | 2019-01-21 | 2019-06-14 | 吉林大学 | 金属圆棒试样单轴拉伸应力应变的圆弧反推测量方法 |
CN109883824B (zh) * | 2019-01-21 | 2021-05-04 | 吉林大学 | 金属圆棒试样单轴拉伸应力应变的圆弧反推测量方法 |
CN109883823B (zh) * | 2019-01-21 | 2021-05-11 | 吉林大学 | 金属圆棒试样单轴拉伸应力应变的双曲线反推测量方法 |
CN112414832A (zh) * | 2020-11-19 | 2021-02-26 | 中国石油天然气集团有限公司 | 多层共挤塑料管耐温性能测试装置及方法 |
Also Published As
Publication number | Publication date |
---|---|
FR2935801A1 (fr) | 2010-03-12 |
FR2935801B1 (fr) | 2012-11-23 |
CN102144152A (zh) | 2011-08-03 |
US8627713B2 (en) | 2014-01-14 |
JP5395176B2 (ja) | 2014-01-22 |
MY172742A (en) | 2019-12-11 |
EP2324335A1 (fr) | 2011-05-25 |
US20110214509A1 (en) | 2011-09-08 |
AU2009289117B2 (en) | 2013-09-26 |
AU2009289117A1 (en) | 2010-03-11 |
CA2735847C (fr) | 2017-01-17 |
BRPI0913473A2 (pt) | 2015-12-01 |
CA2735847A1 (fr) | 2010-03-11 |
JP2012502267A (ja) | 2012-01-26 |
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