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Moisture ingress into advanced materials can critically affect their performance

The surface properties of these materials, as well as their moisture sorption behaviour, are critical as the primary use of fibers and fillers is within other materials. Adhesion performance, flow behaviour, surface energetics, moisture uptake and diffusion can all be readily studied using our sorption instrument systems.

Drying

The moisture sorption properties of fibers and fillers are critical in their subsequent industrial usage. In the past 10 years the DVS method invented by Surface Measurement Systems has become the standard laboratory method for studying drying and dehydration behaviour of fillers and fibers.

pdficon_small Application Note 02: Moisture Sorption of EC Standard Reference Material RM 302 on a DVS-1 Instrument

Particle and fibre adhesion can be a crucial issue for many organic and inorganic solids. A crucial factor in determining adhesion is the surface energy of the materials in question, be they fibre, particle or film. The surface energy of all these types of materials can be easily measured using Surface Measurement System’s unique Surface Energy Analyser.

Application Note 203: Heat of sorption studies on microcrystalline cellulose by pulse inverse gas chromatography at infinite dilution
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Application Note 216: Characterisation of Surface Properties of Glass Fibres by Inverse Gas Chromatography
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Application Note 221: The Determination of Acid-Base Parameters by Inverse Gas Chromatography | Request a copy

Application Note 222: The Determination of Surface Adsorption Potential Heterogeneity Profiles on Graphite by Inverse Gas Chromatography
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Application Note 224: Surface Energetic Heterogeneity Profiles by iGC Surface Energy Analyzer | Request a copy

Application Note 226: Surface Energetic Heterogeneity of Carbon-based Nanomaterials | Request a copy

Application Note 503: Investigating Dried Milk Powders Using Optical Microscopy at Different Humidity Conditions
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The moisture sorption properties of fibres and fillers are critical to their industrial use, especially when used in composite applications. In the past 20 years the DVS method invented by Surface Measurement Systems has become the standard laboratory method for measuring water sorption isotherms of fibers and fillers, both organic and inorganic origin.

pdficon_small Application Note 02: Moisture Sorption of EC Standard Reference Material RM 302 on a DVS-1 Instrument

Fibres and fillers that contain amorphous polymers will all exhibit a glass transition temperature, and for hydrophilic polymers these are highly sensitive to their moisture content. Both DVS and SEA instruments have proven to be very effective at studying the glass transition temperature of amorphous fillers and fibers.

Application Note 35: Determining the Moisture-Induced Glass Transition in an Amorphous Pharmaceutical Material
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pdficon_small Application Note 204: Determination of the glass transition temperatures Tg of maltose and its dependence on relative humidity by infinite dilution inverse gas chromatography

The measurement of diffusion and permeation of vapours such as moisture into fillers and fibres can be important in determining their final product performance. Accurately data on moisture diffusion and permeability of fibres and fillers is routinely determined using DVS instrumentation.

Application Note 12: Absolute Measurement of Moisture Diffusion into Blister Packaging Systems | Request a copy

Application Note 16: Calculation of Diffusion Constants in Thin Polymer Films using DVS | Request a copy

The surface energy of powders, fibres or films is crucial to understanding how the interact with other liquids and solids. In the real world surface energy is critical to understanding problems such adhesion phenomena, wetting of powders and flow behaviour. The SEA instrument is ideal for measuring the surface energy of particulate materials.

Application Note 43: Determination of Surface Energetics of Mineral Aggregates Used in Asphalt by DVS. | Request a copy

Application Note 211: An Investigation of Minerals used in Asphalt by Inverse Gas Chromatography at Infinte Dilution
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Application Note 216: Characterisation of Surface Properties of Glass Fibres by Inverse Gas Chromatography
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