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Micromeritics ASAP 2010Location:
2510 GG Brown Connector
The ASAP 2010 (Accelerated Surface Area and Porosimetry System) provides versatility in gas selection and high vacuum for high-resolution low surface area measurements. It utilizes the principle of physical adsorption to obtain adsorption and desorption isotherms and information about the surface area and porosity of a solid material. It performs surface area analyses plus pore size and pore volume distributions, typically using nitrogen as the standard gas. It calculates BET and Langmuir surface areas, average and total pore volume, BJH pore size distribution and performs micro-pore analysis. It employs a range of standard theories for the calculation such as Horvath-Kawazoe, Dubinin-Radushkevich, Dubinin-Astakov, t-plot, MP-method, BET, Langmuir and Density Functional Theory. |
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TA SDT 2960 Simultaneous DSC-TGALocation:
2510 GG Brown Connector
DTA (Differential Thermal Analysis) measures heat flow to or from a sample as a function of temperature and time. The heat flow and temperature of the sample are monitored in comparison to the reference material. The amount of energy absorbed (endotherm) or evolved (exotherm) as the sample undergoes physical or chemical changes (eg melting, crystallization, curing) is measured in calories as a function of the temperature change. Any material reactions involving changes in heat capacity (eg glass transition) are also detected.
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Controlled Atmosphere / Moisture BoxesLocation:
2510 GG Brown Connector
Controlled environment to work with materials that may be sensitive to oxygen in the air or moisture present in the laboratory atmosphere. Used either with Nitrogen or Argon atmosphere, typically pressurized to slightly above 1 atmosphere. |
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Controlled Atmosphere Tube Furnace (3)Location:
2510 GG Brown Connector
A tube furnace is designed to heat a tube that is usually 50 to 100 cm in length and from 25 to 100 mm in diameter. Samples are placed inside the tube in ceramic or metal boats using a long push rod. The tube is surrounded by heating elements which may also incorporate a thermocouple (a thermocouple can also be inserted down the tube if desired). This particular device can go up to 2100 degrees Celsius. |
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Galaxy Series FTIR 3000Location:
2510 GG Brown Connector
FTIR is most useful for identifying chemicals that are either organic or inorganic. It can be utilized to quantitate some components of an unknown mixture. It can be applied to the analysis of solids, liquids, and gasses. The term Fourier Transform Infrared Spectroscopy (FTIR) refers to a fairly recent development in the manner in which the data is collected and converted from an interference pattern to a spectrum. Today's FTIR instruments are computerized which makes them faster and more sensitive than the older dispersive instruments.
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Gel Permeation ChromatographLocation:
2510 GG Brown Connector
This device uses a column chromatography technique employing as the stationary phase a swollen gel made by polymerizing and cross-linking styrene in the presence of a diluent which is a nonsolvent for the styrene polymer. The polymer to be analyzed is introduced at the top of the column and then is elutriated with a solvent. The polymer molecules diffuse through the gel at rates depending on their molecular size. As they emerge from the bottom of the column they are detected by a differential refractometer from which a molecular size distribution curve is plotted. |
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TA DSC 2910Location:
2510 GG Brown Connector
Differential Scanning Calorimeter good to 600 C.
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Vacuum Ovens (2)Location:
2510 GG Brown Connector
In vacuum ovens, the heat-treating process takes place inside a vessel that is airtight. This allows a vacuum to be drawn inside the vessel. The entire heat-treating process can take place under vacuum or precisely controlled atmospheres can be introduced. Heat treating under vacuum can: prevent surface reactions, such as oxidation or decarburization; remove surface contaminants such as oxide films and residual traces of lubricants; add a substance to the surface layers of the work; remove dissolved contaminating substances from metals by means of degassing. Ovens are built of several kinds of high temperature (refractory) materials to hold the process material and hold in the heat without breaking down during the several months that they usually run. Ovens are lower temperature (usually <1400 degrees F) thermal processing units, usually without refractory insulation. |
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