CA2078277A1 - Ultrasonic Characterization of Polymer Melts Under Processing Conditions - Google Patents

Ultrasonic Characterization of Polymer Melts Under Processing Conditions

Info

Publication number
CA2078277A1
CA2078277A1 CA2078277A CA2078277A CA2078277A1 CA 2078277 A1 CA2078277 A1 CA 2078277A1 CA 2078277 A CA2078277 A CA 2078277A CA 2078277 A CA2078277 A CA 2078277A CA 2078277 A1 CA2078277 A1 CA 2078277A1
Authority
CA
Canada
Prior art keywords
polymer
polymer melt
echoes
ultrasonic
processed
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
Application number
CA2078277A
Other languages
French (fr)
Other versions
CA2078277C (en
Inventor
Luc Piche
Andre Hamel
Richard Gendron
Michel Dumoulin
Jacques Tatibouet
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CA002078277A priority Critical patent/CA2078277C/en
Priority to US07/952,979 priority patent/US5433112A/en
Publication of CA2078277A1 publication Critical patent/CA2078277A1/en
Application granted granted Critical
Publication of CA2078277C publication Critical patent/CA2078277C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/02—Analysing fluids
    • G01N29/032—Analysing fluids by measuring attenuation of acoustic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/02—Analysing fluids
    • G01N29/024—Analysing fluids by measuring propagation velocity or propagation time of acoustic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/022—Liquids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/025—Change of phase or condition
    • G01N2291/0252—Melting, molten solids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/042—Wave modes
    • G01N2291/0421—Longitudinal waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/10—Number of transducers
    • G01N2291/102—Number of transducers one emitter, one receiver

Abstract

A method and apparatus for ultrasonically characterizing a polymer melt flowing in a predetermined direction between two opposed parallel surfaces spaced from one another to define a gap filled with polymer are disclosed. Ultrasonic pulses are propagated through the polymer melt between the two surfaces in a direction normal to the direction of flow for interaction with the polymer, the ultrasonic pulses having a duration such as to prevent successive echoes from overlapping with one another while reverberating between the two surfaces. The time delay between two echoes exiting from the polymer melt and generated from each pulse having interacted with the polymer is continuously monitored while simultaneously monitoring amplitude variations of the two echoes, to provide output signals representative of ultrasonic velocity and attenuation in the polymer melt. These output signals are processed to obtain data comprising ultrasonic velocity and attenuation values measured simultaneously as a function of time. The data is then processed to derive quantitative information relating to viscoelastic properties, structure or composition of the polymer, which can be used as input data in a closed loop process control system.
CA002078277A 1992-09-15 1992-09-15 Ultrasonic characterization of polymer melts under processing conditions Expired - Lifetime CA2078277C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA002078277A CA2078277C (en) 1992-09-15 1992-09-15 Ultrasonic characterization of polymer melts under processing conditions
US07/952,979 US5433112A (en) 1992-09-15 1992-09-29 Ultrasonic characterization of polymer melts under processing conditions

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002078277A CA2078277C (en) 1992-09-15 1992-09-15 Ultrasonic characterization of polymer melts under processing conditions
US07/952,979 US5433112A (en) 1992-09-15 1992-09-29 Ultrasonic characterization of polymer melts under processing conditions

Publications (2)

Publication Number Publication Date
CA2078277A1 true CA2078277A1 (en) 1994-03-16
CA2078277C CA2078277C (en) 1999-09-14

Family

ID=25675525

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002078277A Expired - Lifetime CA2078277C (en) 1992-09-15 1992-09-15 Ultrasonic characterization of polymer melts under processing conditions

Country Status (2)

Country Link
US (1) US5433112A (en)
CA (1) CA2078277C (en)

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9200218D0 (en) * 1992-01-07 1992-02-26 Univ Bradford Method and apparatus for the identification of species
RU2061218C1 (en) * 1992-07-22 1996-05-27 Всероссийский научно-исследовательский институт природных газов и газовых технологий Device for determination of properties of fluid media
US5951163A (en) * 1996-10-16 1999-09-14 National Research Council Of Canada Ultrasonic sensors for on-line monitoring of castings and molding processes at elevated temperatures
US5790249A (en) * 1996-12-23 1998-08-04 Eastman Chemical Company Flow contamination tester
US6296385B1 (en) * 1997-05-12 2001-10-02 Mississippi State University Apparatus and method for high temperature viscosity and temperature measurements
US5992223A (en) * 1997-07-14 1999-11-30 Chandler Engineering Company Llc Acoustic method for determining the static gel strength of a cement slurry
US6227040B1 (en) * 1998-02-03 2001-05-08 Caldon, Inc. Method and apparatus for determining the viscosity of a fluid in a container
AR025176A1 (en) 1999-06-15 2002-11-13 Dow Global Technologies Inc PROCESS AND APPLIANCE FOR MONITORING AND ONLINE CONTROL OF A PROCESS PLANT
US6672164B1 (en) * 1999-06-16 2004-01-06 Teijin Twaron B.V. Process for determining the polymer concentration in a spinning dope solution
GB2367363B (en) * 1999-06-16 2003-07-23 Teijin Twaron Bv Process for determining the polymer concentration in a spinning dope solution
US6360610B1 (en) * 1999-11-02 2002-03-26 Jacek Jarzynski Condition monitoring system and method for an interface
CA2412974A1 (en) * 2000-06-15 2001-12-20 Marcos Franca Process and apparatus for preparing polymers, utilizing a side stream ultrasonic device for monitoring and controlling the properties of the polymer
US6534964B1 (en) * 2000-09-22 2003-03-18 International Business Machines Corporation Apparatus and method for determining stiffness properties of an anisotropic electronic substrate using scanning acoustic microscopy
WO2002046720A1 (en) * 2000-12-07 2002-06-13 The University Of Bristol Polymeric solutions rheometer
GB0031564D0 (en) * 2000-12-22 2001-02-07 Borealis Tech Oy Viscosity measurement
US6513385B1 (en) * 2001-05-08 2003-02-04 Halliburton Energy Services, Inc. Acoustic sensor for pipeline deposition characterization and monitoring
US6941819B1 (en) 2001-09-28 2005-09-13 Chandler Instruments Company L.L.C. Apparatus and method for determining the dynamic mechanical properties of a cement sample
US6828371B2 (en) * 2002-01-11 2004-12-07 Ford Global Technologies, Llc Method for producing a well-exfoliated and dispersed polymer silicate nanocomposite by ultrasonication
US7017412B2 (en) * 2002-04-18 2006-03-28 University Of Utah Research Foundation Continuous wave ultrasonic process monitor for polymer processing
NL1020714C2 (en) * 2002-05-30 2003-12-02 Tno Ultrasonic characterization of high concentration particles.
DE10249507A1 (en) * 2002-10-23 2004-05-06 Basf Ag Method for determining the amount of polymer deposited from (meth) acrylic acid and / or (meth) acrylic acid esters
US7358282B2 (en) * 2003-12-05 2008-04-15 Kimberly-Clark Worldwide, Inc. Low-density, open-cell, soft, flexible, thermoplastic, absorbent foam and method of making foam
FR2873444B1 (en) * 2004-07-22 2007-03-02 Univ Pasteur PIEZORHEOMETER MEASUREMENT CELL AND CORRESPONDING PIEZORHEOMETER
US7291382B2 (en) * 2004-09-24 2007-11-06 Kimberly-Clark Worldwide, Inc. Low density flexible resilient absorbent open-cell thermoplastic foam
US20060148959A1 (en) * 2004-12-06 2006-07-06 Avraam Isayev Process for preparing polymer nanocomposites and nanocomposites prepared therefrom
EP1726947A1 (en) * 2005-04-20 2006-11-29 Sika Technology AG device and method for ultrasonically determining the dynamic elastic modulus of a material
US8158689B2 (en) * 2005-12-22 2012-04-17 Kimberly-Clark Worldwide, Inc. Hybrid absorbent foam and articles containing it
US20070148433A1 (en) * 2005-12-27 2007-06-28 Mallory Mary F Elastic laminate made with absorbent foam
US7685861B2 (en) * 2006-10-18 2010-03-30 Luna InnovationsIncorporated Method and apparatus for calibrating an ultrasonic sensing system used to detect moving objects
DE102006053032A1 (en) * 2006-11-10 2008-05-15 Schaeffler Kg Determining the damping properties of greases comprises introducing a layer of grease between two plates, applying an excitation signal to one plate and detecting a response signal from the other plate
ES2323624B1 (en) * 2007-08-09 2011-01-31 Fundacio Privada Ascamm ULTRASONIC DEVICE FOR MOLDING OF MICROPIEZAS DE PLASTICO.
DE102009004946B4 (en) * 2008-10-22 2015-04-09 Sikora Aktiengesellschaft Method and device for measuring the temperature of a plasticized plastic at the exit of an extruder
US9003894B2 (en) 2012-04-25 2015-04-14 General Electric Company Ultrasonic flow measurement system
CN103954685B (en) * 2014-04-22 2017-02-15 华南理工大学 Device and method for ultrasonically measuring flow orientation of polymer melt on line
US9702855B2 (en) 2014-08-29 2017-07-11 Baker Hughes Incorporated Acoustic interface device
DE102015118226A1 (en) * 2015-07-17 2017-01-19 Sonovum AG Apparatus for the examination of materials by acoustic spectroscopy
DE102016102131A1 (en) * 2015-07-17 2017-01-19 E3 Technology Sp. z o.o. Apparatus and method for the examination of materials by acoustic spectroscopy
CN106053596B (en) * 2016-05-18 2019-03-15 陕西煤业化工技术研究院有限责任公司 A kind of nano fluid heat transferring mass transfer monitoring device and method
DE102018114408A1 (en) * 2018-06-15 2019-12-19 Werkzeugbau Siegfried Hofmann Gmbh Plastic processing tool
CN111964757B (en) * 2020-08-13 2022-11-11 浙江苍南仪表集团股份有限公司 Transducer consistency evaluation method based on echo signal characteristic parameters
US11187677B1 (en) 2021-03-17 2021-11-30 Wesley Nelson Cobb Combined ultrasonic and thermomechanical property measurement

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4015470A (en) * 1973-12-26 1977-04-05 Trw Inc. Flow measuring method and apparatus
US4559810A (en) * 1981-07-09 1985-12-24 Applied Polymer Technology, Inc. Method for determining resin viscosity with ultrasonic waves
US4509360A (en) * 1983-06-24 1985-04-09 Massachusetts Institute Of Technology On-line measurement of fluid mixtures
GB8427713D0 (en) * 1984-11-02 1984-12-12 Evans T E Liquid detection and identification
US4677842A (en) * 1985-03-18 1987-07-07 Canadian Patents & Development Limited Ultrasonic density measurement
US4754645A (en) * 1987-05-14 1988-07-05 Canadian Patents And Development Limited Ultrasonic characterization of polymers under simulated processing conditions
US5170667A (en) * 1989-12-08 1992-12-15 Tokimec, Inc. Method and apparatus for monitoring state of polymeric materials

Also Published As

Publication number Publication date
US5433112A (en) 1995-07-18
CA2078277C (en) 1999-09-14

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