ResourceGeneral Lab
Reliable Sample Preparation of the Characterization of Polymers
26 Oct 2016The analysis of polymers is executed with the aid of gel permeability chromatography. Suitable sample preparation is important in order to dissolve the polymers, however, the degradation of the material’s characteristics has to be avoided. An ideal solution for the sample preparation is the Variable-Speed-Rotor Mill PULVERISETTE 14. Using this mill, final material fineness of <80µm can be achieved. An embrittlement of the polymers with liquid nitrogen or the grinding while adding dry ice avoid the degradation.
Related products
Request Quote for All Products
Variable Speed Rotor Mill PULVERISETTE 14 classic line
Fritsch GmbH - Milling and SizingThe Variable Speed Rotor Mill
Variable Speed Rotor Mill PULVERISETTE 14 premium line
Fritsch GmbH - Milling and SizingFast pre- and fine-grinding in one instrument
Links
Tags
Particle CharacterizationParticle characterization instruments are used to determine particle size distribution, shape, surface area, zeta potential, density and porosity of particles and materials. Multiple tecchniques are available for determining particle size, shape and count including dynamic light scattering (DLS), laser diffraction, electrozone (Coulter technique), imaging particle analysis and single particle optical sensing. Determine the density of your material with a gas pycnometer or examine its surface area and porosity with gas adsorption analyzers and mercury porosimeters. Find the best particle characterization instruments in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.ProfilometersProfilometers are instruments used to measure a surface's profile, in order to quantify etch depth, deposited film thickness, and surface roughness. They operate in either contact or non-contact modes and may use optical or stylus techniques to make the actual measurements.Mills, Sieves and PressesMills, sieves and presses are used to break and sort solid materials into smaller particle sizes for further processing such as pellet pressing or analysis. Milling equipment includes grinders, ball mills, cutting mills, jaw crushers, knife mills, beater and planetary mills. Sorting of smaller particulates can be achieved with test sieves and sieve shakers. Final powders can be pressed with hydraulic presses. Milling and pressing solid samples is an important preparation step in X-ray fluorescence spectroscopy (XRF) and diffraction (XRD). Find the best mills, sieves and presses in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Sample PreparationSample preparation can improve the quality and speed of separation techniques. Products to assist sample preparation include filtration equipment, evaporators, membranes and sieves.ChromatographyChromatography is a powerful technique used to separate and analyze components of mixtures based on their chemical properties. It is widely used in fields like biochemistry, pharmaceuticals, and environmental analysis. By exploiting differences in the interaction of substances with a stationary phase and a mobile phase, chromatography enables precise purification and quantification of compounds. Whether you're working with complex biological samples or industrial chemicals, chromatography is essential for obtaining high-quality results. Browse our peer-reviewed product directory to find the best chromatography systems, compare products, read customer reviews, and get pricing directly from manufacturers.PolymersPolymers are large molecules made up of many repeat units. Natural polymers such as DNA and proteins are essential to life, whereas synthetic polymers such as polystyrene and polyethylene are used widely due to their functionality. Typical techniques for analysis include GPC, SEC, DSC, FT-IR and NMR.Permeation