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.
Read more about other testing service areas.
Chromatographic methods are used to separate, identify and quantify chemical components in a polymer, mixtures or the environment.
HPLC is used to separate, identify and quantify compounds and chemicals.
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.
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.
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.
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.
Norner can, by use of gel permeation chromatography, find the molecular weight distribution (MWD) of a polymer. By use of right solvents and temperatures this is possible for most polymers.
Gel permeation chromatography (GPC) or Size Exclusion Chromatography (SEC), separates molecules based on its size in solution and hydrodynamic volume.
We offer both Low and High temperature GPC analysis according to ISO16014-1 to 4.
GPC is used for determination of several Molecular weight parameters, its distribution and polymer structure:
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.
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.
We use rheology in:
Norner flexible spectroscopy instruments are used for both identification of polymers, components as well as quantitative analysis of chemicals and compositions.
FTIR measures the vibration energy level of the molecules and is used to identify chemical compounds or investigate sample compositions.
The bulk composition of a material or compound:
UV-VIS use light in the visible and adjacent near ultraviolet (UV) and near infrared (NIR) ranges.
If you have specific questions to what we can do or how we can support you, please contact us.
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.
Heating and cooling polymers under standard conditions and used characterisation of;
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.
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.
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.