We use cookies to improve your browsing experience. By continuing to use our site, you accept our cookie policy.

close Close Cookie Notification
Instron
  • Back
  • Home
  • Products
    Testing Systems
    Universal Testing Systems
    Structural Durability
    Automated Testing Systems
    Dynamic and Fatigue Testing Systems
    Crash Simulation
    Torsion Testers
    Rheometers & Melt Flow Testers
    Impact Drop Towers & Pendulums
    HDT & Vicat
    Out of Production Systems
    Accessories
    Software
    Load Cells
    Peel, Friction, Puncture
    Environmental Chambers and Furnaces
    Tensile Grips
    Flex Fixtures
    Compression Platens
    Biomedical Systems & Accessories
    Extensometers
    Composite Fixtures
    Microelectronic Fixtures
    Specimen Measuring and Preparation
    All Accessories
    Accessories Catalog
  • Industry Solutions
    Search by Material Search by Standard Search by Test Type
    Industries
    Automotive
    Biomedical
    Electronics
    Materials
    Composites
    Metals
    Plastics
  • Service and Support
    Instron Remote Technical Support Product Life Cycle Service Success Stories
    Services
    Calibration and Verification
    Instron Implementation Assistance
    Installation & Relocation
    Training
    Contact Training Department
    [NEW] Virtual Training
    Online eLearning
    Onsite Training at your Facility
    Factory Training
    Regional Training
    Tech Support
    FAQs
    Software Update Services
    Resources
    Manuals
    Serial Number Locator
  • Our Company
    Careers Press Room Subscribe to Our Newsletters
    About Us
    Our History
    Locations
    Accreditations & Certificates
    Resources
    Glossary
    Test Types
    Newsletters
    Literature Library
    News
    How To
    Webinars
    Case Studies
  • Contact Us
  • North America
Testing Solutions » By Test Type » Rheology » ISO 11443, ASTM D3835

ISO 11443, ASTM D3835 Determination of Properties of Polymeric Materials with a Capillary Rheometer

Specimen

  • Pellets

Test Types

  • Rheology
  • Shear

Standard

  • ISO 11443
  • ASTM D3835

Materials

  • Plastics

Business Sector

  • Consumer/Industrial Products
Contact usView Accessories Catalog
SmartRheo SR20
  • SmartRheo SR20
  • Description
  • Literature

ISO 11443 and ASTM D3835 are two analogous standards, laying out procedures to analyze the flow properties of polymer melts up to high shear levels. This is used primarily for process design in injection molding and extrusion, where the process designer needs to know how to best design the mould, set temperatures, adjust speed and pressure based on how the polymer melt will flow. The test is performed by means of a capillary rheometer, imposing a series of pre-determined shear rates on the hot fluid by extruding it through a capillary die. The pressure of the fluid as it hits the die is recorded; the resulting data can then be analyzed in order to determine the flow properties. The testing temperature applied can be altered in order to determine the best processing temperature, but for practicality reasons, care should be taken when applying temperatures much higher or lower than the specified melting point.

In this application, the manufacturer desired a new formulation of Polypropylene (PP) for use in lawn shade applications. The product was being manufactured using a twin-screw extruder with a temperature range of 185 to 210°C; the final product was a thread that consisted of a PVC core with a PP sheath. The PP needed to process just like the PVC, but behave in a more environmentally friendly manner. Once the threads had been made, they would be woven together into textiles. The manufacturer was seeking to optimize the manufacturing process and quality of the product by enabling informed decisions about incoming raw material; in particular if the material should be rejected, modified, accepted or the process adapted to compensate for it. To this end, a rheological analysis tool was required.

We used an Instron SR20 capillary rheometer for rheological characterization of the samples. The configuration we used in this application involved a 140 MPa pressure transducer, 20 kN load cell and the standard 15 mm barrel. The capillary die had a diameter of 1 mm and length of 30 mm. The results of the tests enabled us to compare the samples and could be used to make production decisions.

CEAST SmartRHEO Series: Capillary Rheometer Systems

Thermoplastic materials are processed as fluids under the effect of temperature and pressure. The ability of plastics to be formed into a wide variety of shapes, by the common plastics conversion processes, has a fundamental importance in polymer science and application. The innovative Instron® line of CEAST SmartRHEO Series of Capillary Rheometer systems are designed for an accurate investigation of the rheological properties of polymeric materials.

  • Products
  • 9/22/2014
  • 3.5 MB

Region Selector

Dismiss Region Selector

Americas

  • North America
  • Brasil
  • South America

All Other Countries

  • Global Site

Europe

  • France
  • Deutschland
  • Italia
  • Polska
  • España
  • Türkçe
  • United Kingdom

Asia Pacific

  • 中国
  • India
  • 日本
  • 대한민국
  • 台灣
  • ประเทศไทย
Instron Logo White
CONTACT INFORMATION

825 University Ave
Norwood, MA,
02062-2643, US

Sales: +1 800 564 8378

Service: +1 800 473 7838

General: +1 800 877 6674

HELPFUL LINKS
  • Testing Systems
  • Software
  • Accessories
  • Catalog
  • Glossary
  • Library
  • Testing Solutions
  • Newsletters
  • Webinars
  • Case Studies
  • Events
  • Careers
Policies / Legal
  • Privacy and Cookies Policy
  • Terms of Use
  • Accessibility
  • Export Control
  • Data Notice GDPR
CONNECT WITH US
SIGN UP FOR OUR NEWSLETTER
EMAIL ADDRESS
© Illinois Tool Works Inc. All rights reserved.
[email protected]
  • Privacy and Cookies Policy
  • Terms of Use
  • Accessibility
  • Export Control
  • Data Notice GDPR