Norner is a laboratory with more than 40 years of industrial experience in polymer analysis which ensure high competence for our wide range of analytical techniques.
The polymer analysis laboratory provide results which enable us and our clients to understand better the details of the polymer structure and composition which enable interpretation of the polymer performance in processing and final products.
These services are used to analyse important features like:
Viscosity and flow behaviour of plastic melt
Melting and crystallisation
Molecular weight distribution
Polymer composition and additives
Polymer behaviour when exposed to wide range of temperatures
Structural identification and solubility
We can perform special customer demands as part of larger development or technological projects.
Our wide range of tests are according to ISO or EN norms whenever possible.
We can identify material failures or weaknesses in both plastic parts, films and other materials.
Chromatographic methods are used to separate, identify and quantify chemical components in a polymer, mixtures or the environment.
HPLC - High Performance Liquid Chromatography
HPLC is used to separate, identify and quantify compounds and chemicals.
GC / GC-MS Gas Chromatography
GC is a separation method for detection and quantification of known organic and inorganic compounds in gases, polymers or other substances. GC/MS instrument can identify and quantify unknown chemical components.
DMA - Dynamic Mechanical Analysis, according to ISO 6721
This is a technique used to study and characterize materials by observing the viscoelastic nature of polymers over a range of temperatures or frequencies. A sinusoidal stress is applied and the strain in the material is measured. All transitions corresponding to molecular motions are detected.
Glass transition temperature (Tg)
3 point bending test
Storage and Loss modulus
TMA - Thermal Mechanical Analysis, according to ISO 11359
TMA is a useful technique within Thermal analysis, and is used to measure dimensional changes of a material as a function of temperature, time and applied force.
CLTE - Coefficient of Linear Thermal Expansion
Glass transition temperature (Tg)
Other effects such as softening, crystallization and solid-solid transitions determine the potential applications of a material and provide important information about its composition
Viscoelastic behaviour can be studied by varying the applied force (DLTMA mode)
A method used to analyse the molecular chain length of polymers is the intrinsic viscosity (IV).
IV is determined by a capillary based measurement of the viscosity of a dilute solution of the polymer in an appropriate solvent and then correlating it to the molecular weight of the polymer. The viscosity is measured by an Ubbelohde type viscometer as the dissolved polymer flows through a narrow channel. This procedure can be used to determine the intrinsic viscosity (IV) of several polymer types.
Polymer solubility can be used for characterisation of several aspects of polymers. In important aspect is understanding the extractable matter which can have an impact on the material performance and also be subject to regulations. Important structural characterisation of PP is made and characterisation of degree of cross linking for other materials.
Solubility in hexane or heptane according to ISO 6427
Xylene soluble for polypropylene (PP) according to ISO 16152
Degree of cross linking according to ISO 10147
Toluene insoluble according to internal Norner method
Rheology is one of the noble arts within the polymer field. Norner provides services from the basic MFR-measurements to complex viscosity calculations. For all processing of polymers, the rheology services will be of great benefit.
Norner has the expertise and tools to utilize rheological data as a tool for making predictions.
The science and study of deformation and flow of materials in liquid, melt or solid form, in terms of the materials elasticity and viscosity is called Rheology.
Rheology concerns the relation between force, deformation and time. The measurement of rheological properties gives information about melt processing behaviour and molecular structure. It can also be used to predict end properties of the product.
Norner offers a wide range of services within thermal analysis which is made in order to establish their melting and crystallisation behaviour, information about their structure and properties and thermal transitions. It may also be used to estimate their durability and ageing processes.
DSC - Differential Scanning Calorimetry according to ISO 11357
Heating and cooling polymers under standard conditions and used characterisation of;
Melting and crystallisation temperatures (Tm/Tc)
Glass transition temperature (Tg)
Energy and enthalpy of a polymer during melting and crystallisation (ΔH)
Crystallisation and polymer compositions
OIT - Oxidation stability
TGA - TermoGravimetric Analysis according to ISO 11358
This is a technique that measures the change in weight of a sample as it is heated, cooled or held at constant temperature. This gives information of the composition like volatiles and the decomposition temperatures as well as residual solids content.
Stepwise Isothermal Segregation Technique – SIST by DSC , according to Norner internal method.
This is a method for estimating the Lamellar thickness according to Thompson-Gibbs equation. This analysis gives information of comonomer distribution in copolymers due to the differences in crystallisation as a function of comonomer content of the polymer chains.
Norner has leading expertise in handling of materials and polymers for the whole plastics and packaging value chains. Our wide range of capabilities, enables us to offer a powerful validation and certification service as independent body.
Norner deliver confident third party testing services for the industry.
Benefits of third party testing services
The polymer producer will save resources for internal testing.
The additive supplier can use the results and certificates towards several polymer producers.
The independent results make it unnecessary to do the same analysis multiple times.
Through our third-party prequalification service the industry will save time and money.
We offer efficient high quality characterisation and performance testing of additives in Polyolefins based on experience built up over 3 decades and excellent competence within research and development.
Small scale compounding
Recipe development and optimisation
Benchmarking and troubleshooting
Norner independent certification services
Norner Additive Certificate
Evaluation of Additives
Additive Qualification Partner
Additives vs. Process Technology
High Purity Additives
Comparison of Additives – raw materials and in polymers
Norner performs a number of titration techniques. Examples can be Karl Fischer-titration to decide the moisture content, determination of acid number or finding the content of primary, secondary and tertiary amine.
Our strategic advisory team help clients to be successful in strategic choices, to create added value, to achieve a superior cost position and to set up innovation organization and tools. Please contact us for advice.