Public Instrumentation Facility

I. Instrument Applications

The instrument measures the heat flow difference between a sample and a reference as a function of temperature or time during programmed temperature control. It can be used to study material properties such as denaturation temperature, thermal stability, melting behavior, glass transition, crystallization behavior, oxidative stability, chemical reactions, and specific heat.

Equipment specifications: Temperature range: -86°C to 700°C; Calorimetric sensitivity: ≤0.05 µW; Calorimetric (enthalpy) accuracy: ≤ ±0.05%; Heating rate (linearly controllable across the full range): 0.02–300°C/min.

II. Reservation Instructions

Samples can be submitted for testing, or users who have completed training may operate the instrument independently.

III. Sample Requirements

1. The instrument does not accept samples containing sulfur or halogens, nor samples that can permeate, corrode, or react with aluminum crucibles.

2. Samples that produce toxic or harmful gases when heated, or those that are flammable or explosive, are not accepted.

3. The approximate decomposition temperature of the sample must be known, and the sample must not decompose or overflow within the test temperature range. If the decomposition temperature is unknown, a TGA test should be conducted prior to DSC to determine it.

4. A minimum of 10 mg of sample is recommended. For samples with high hardness, it is advised to cut them into pieces weighing 5 mg or less.