Rheology Tests

Rheology Testing Applications Include:

• Design data for flow filing simulations
• Caplillary rheometer - Polymers and viscous fluids up to 400°C
• Shear / extensional viscosity curves - infers comparative molecular weight, MWD and polymer chain structure
• Extrudate appearance - stress at onset of melt fracture, trapped volatiles etc
• Direct measurement of die swell properties
• Wall Slip measurements
• Metal contact effects (via GPC)
• Injection moulding / Extrusion -Surface finish, mould filling, flashing, clamping pressure, weld lines, sink marks, warpage
• Tapes, Films, Fibres, Blow moulding -Surface finish, fibre breakage, excessive draw, melt strength, edge curl, shrinkage, fibre coalescence, splitting, uneven width / thickness, bubble breaks, die drool

Rheology Laboratories Service and Expertise:

• Small scale polymer processing kit that can handle as little as 50g of sample
• Bench top twin screw extruder (hopper volume 15cm 3) is able to compound/blend samples at temperatures up to 350°C
• A haul-off facility enables lace samples to be collected prior to cutting/pelletisation etc.
• The bench-top injection moulding machine (also capable of operating up to 350°C) can then be used to mould samples of varying geometries including ASTM/DIN test pieces
• Rheological research projects can be combined with other analytical teams, either with the Intertek global laboratory network or with the client's laboratory.

• Contact Intertek for more rheological testing services, rheology testing is available in Europe and North America. Samples can be shipped to the labs from most global locations.