SelectScience
Join Free
Accelerating Science
ResourceMaterials

Influence of Water Content on the Processability of Polyesters

Berghof Products + Instruments GmbH
23 Feb 2015

The presence of water in plastics has a substantial influence on the quality and processability of the end products, particularly in the consumer sector. Therefore, quality control procedures are required that allow for simple and fast determination of the water content. This application note demonstrates the use of the Berghof Easy H2O one water determination system, which combines the thermal evaporation of water with a selective electrochemical water sensor to easily determine water content in plastics.

Related products

Request Quote for All Products

easyH20 Chemical-free Water Determination

Berghof Products + Instruments GmbH

easyH20 Chemical-free Water Determination. The Berghof easyH2O combines thermal evaporation of water with a selective, electrochemical water sensor to a new and innovative method of water analysis. Unlike the gravimetric moisture-measuring techniques, the result is not disturbed by substances which evaporate out of the sample together with the water. It therefore delivers reproducible, accurate results and facilitates separate identification of free surface and capillary water as well as bonded water. The water is evaporated out of the sample in a programmable oven and is fed to the sensor by a carrier gas. The coulometric sensor based on hygroscopic phosphorous pentoxide absorbs the water. The water is electrolysed immediately and the required electrical charge is proportional to the quantity of water which is determined. Thus the sensor regenerates itself and is always ready to use. Operation is extremely simple. No special or toxic chemicals are required to operate the system. The operator profits by reduced operating and disposal costs as well as reduced blank value input regarding chemicals.

(0)

Links

Berghof Products + Instruments GmbHCompany website

Tags

Thermal Analysis EquipmentThermal analysis equipment is used for measuring heat flow, weight loss, dimension changes or thermomechanical properties and is important for analyzing a material’s performance and stability. Thermal analysis equipment includes differential scanning calorimeters (DSC), thermogravimetric analyzers (TGA), thermomechanical analyzers (TMA), dilatometers, thermometers, vapor sorption analyzers, boiling and melting point apparatus. Thermal analyzers can reveal properties such as melting, crystallization and glass transitions or other processes such as oxidation, decomposition, volatilization, as well as coefficients of thermal expansion and modulus. Find the best thermal analysis equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Water Content AnalysisWater content analysis is crucial for determining the moisture levels in food, pharmaceuticals, chemicals, and other materials. Accurate measurement ensures product quality and shelf-life. Explore water content analysis tools in our peer-reviewed product directory; compare products, check 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.

Related resources

Influence of Water Content on the Processability of Polyesters