Tests and Failure Analysis
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Material characterization

Physical characterization

Density/specific gravity (ISO 1183-1/method A)

Ash/mineral fillers/glass fibres/carbon black conten ash/mineral fillers/glass fibres/carbon black contentt (ISO 3451-1/ ISO 1172)

Water absorption (ISO 62/ASTM D570)

Moisture determination by Karl Fisher titration

Measurement of contact angles and surface free energy

Permeability Tests - Determination of the oxygen transmission rate (OTR) according to the ASTM D3985 standard (test to be carried out on three specimens)

Ensaios de Permeabilidade - Permeability Tests - Determination of the water vapor transmission rate (WVTR) according to the ASTMF1249/ ISO 15106-2 standard (test to be carried out on three specimens)

Mechanical characterization

Tensile properties 23 °C (ISO 527-1/ -2/ASTM D 638)

Tensile properties at temperatures greater than 23 °C (ISO 527-1/ -2/ASTM D 638)

Tensile properties at temperatures below 23 °C (ISO 527-1/ -2/ASTM D 638)

Flexural properties at 23 °C (ISO 178 / ASTM D 790)

Flexural properties at temperatures above 23°C (ISO 178 / ASTM D 790)

Flexural properties at temperatures below a 23 °C (ISO 178 / ASTM D 790)

Compression properties at 23 °C (ISO 604 / ASTM D 695)

Compression properties at temperatures above 23°C (ISO 604 / ASTM D 695)

Compression properties at temperatures below 23°C (ISO 604 / ASTM D 695)

Charpy impact resistance at 23°C (ISO 179-1)

Charpy impact resistance at temperatures below 23°C

Izod impact resistance at 23°C (ISO 180)

Izod impact resistance at temperatures below 23°C

Multiaxial impact resistance by instrumented puncture test at 23°C (ISO 6603-2)

Multiaxial impact resistance by instrumented puncture test at temperatures below 23°C

Shore A/D hardness (ISO 868 / ASTM D 2240)

Resistance to abrasion (ISO 9352)

Thermal characterization

Determination of temperature and enthalpy of melting and crystallization by DSC (ISO 11357-3)

Determination of the glass transition temperature by DSC (ISO 11357-2)

Determination of Heat capacity (Cp) by DSC (ISO 11357-4)

Determination of the degree of crystallization by DSC

Thermal stability (mass loss versus temperature/time) by thermogravimetry (TGA) (ISO 11358 / ASTM E 1131)

Vicat softening temperature (ISO 306 / ASTM D 1525)

Heat deflection temperature (HDT) (ISO 75 / ASTM D 648)

Rheological characterization

Melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) (ISO 1133-1) with or without sample preparation (trituration)

Capillary rheometry for determination of flow curves at a temperature

Rotational rheometry for determination of viscosity properties

Viscosity measurement by the Brookfield method

Structural characterization

Viscosity number of polyamides (ISO 307)

Determination of viscosity number/intrinsic viscosity/inherent viscosity of polyesters (ISO 1628/ ASTM D4603)

Microscopic characterization

Evaluation of pigment distribution by optical transmission microscopy

Observation of the microstructure by optical microscopy

Analysis of multi-layer structures by optical microscopy

Analysis of multilayer structures by scanning electron microscopy (SEM)

Analysis of fracture surfaces by scanning electron microscopy (SEM)

Defect analysis by scanning electron microscopy with energy dispersive X-ray spectrometry (SEM -EDS), with or without sample preparation

Measurement of optical properties

Colour measurement (coordinates of the CIELAB, CIE xyY and CIE XYZ systems)

Determination of specular gloss at 20°, 60° and 85°

Determination of flame behavior

Flammability tests- Determination of burning behaviour (UL 94)

Flammability tests - Determination of burning behaviour (FMVSS 302 / TL 1010)

Characterization of recycled materials

Rubber characterization

Identification of rubber type by FTIR (ASTM D3677)

Quantification of components (TGA) (ASTM D6370)

Tensile properties (ISO 37 / ASTM D412)

Tear strength (ISO 34)

Shore A/D hardness (ISO 868 / ASTM D 2240)

Determination of compression set (ISO 815 / ASTM D 395 / ISO 1856) (24 hours at room temperature or above)

Resistance to abrasion (ISO 9352)

Composites characterization

Glass fiber/mineral filler content by calcination (ISO 3451-1 / ISO 1172)

Tensile properties (ISO 527-4/-5 / ASTM D3039) (5 instrumented specimens)

Tensile properties at 23°C (ISO 14125)

Compression resistance (Sacma SRM1R-94/ASTM D695)

Shear properties - In-plane shear strength (ASTM D 3846)

Shear properties - V-Notched Beam method (ASTM D 5379) (5 instrumented specimens)

Shear properties - Tensile ± 45º (ASTM D 3518) (5 instrumented specimens)

Shear properties - Short-Beam and interlaminar shear strength (ASTM D 2344 / ISO 14130)

Products characterization

Standardized tests

Pipes

Tensile properties at 23°C (ISO 6259) without specimen preparation

Ring stifness (ISO 9969)

Oxidation induction time (OIT) (ISO 11357-6)

Films

Determination of thickness by mechanical scanning (ISO 4593)

Tensile properties at 23 °C (ISO 527-3/-2/ASTM D 882)

Tear resistance (ASTM D1004)

Hot shrinkage/dimensional stability (ASTM D1204/ ISO 11501)

Foams

Adhesives

Sandwich structures

Customized tests

Material Identification

Chemical analysis by FTIR

Infrared spectrophotometry (FTIR) for polymer type identification

Scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM/EDS), for determination of elemental chemical composition (constituent chemical elements)

Determination of the degree of crosslinking by solvent extraction

Soxhlet extractions

Thermal analysis by DSC

Composition analysis by TGA

Failure analysis

Material contamination

Mechanical failure

Degradation

Aesthetic problem

Other non-conformities

Ageing tests

Accelerated artificial ageing with Xenon arc radiation

Ageing with temperature and humidity in a climatic chamber

Thermal aging in forced convection oven

Specimen preparation

Injection moulding of ISO 527-2/1A tensile specimens, ISO 179-1/1eA/1eU impact and 80mm diameter discs (up to 60 specimens)

Training/consultancy

Experimental techniques to characterize plastic materials

Quality control of plastic materials and products

Defect analysis

Interpretation of technical sheets

Customized training courses

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