Research | Technological Platforms

Thermal Analysis and Calorimetry

The “Josep Carilla” Thermal Analysis and Calorimetry (TAC) Service offers its services to IQAC groups, other CSIC institutes, university and research center groups, and R departments of companies from various sectors. The service provides the following techniques:

  • Differential Scanning Calorimetry, DSC
  • Thermogravimetric Analysis, TGA
  • Dynamic Vapor Sorption, DVS
  • Thermomechanical Analysis, TMA

Analysis results can be accompanied by a technical report upon request from the applicant.

Services

Differential Scanning Calorimetry (DSC)

It analyzes the difference in heat flow between a sample and a reference while they are subjected to a temperature program.

Applications: The technique is widely used in a variety of applications, both for quality control and as a research tool. DSC is commonly used in the pharmaceutical, polymer, cosmetic, textile, and food industries. This technique can be employed for the following determinations:

  • Phase transitions: determination of melting and crystallization points
  • Polymorphism and pseudopolymorphism studies
  • Determination of glass transition temperatures (Tg)
  • Cp determinations
  • Purity determination
  • Determination of thermal/oxidation stability
  • Kinetic studies
  • Polymers: curing studies, determination of glass transition, melting point, and degree of crystallinity.
  • Compatibility studies (Active Pharmaceutical Ingredient/excipients)
  • Proteins: denaturation and aggregate formation
  • Melting and gelation processes
  • Phase transitions: liquid crystals, lipids
  • Thermoporometry determinations

EQUIPMENT

DSC (821e, Mettler Toledo)

Temperature range: -150 -500 ⁰C

Gases: nitrogen and oxygen

DSC (823e, Mettler Toledo)

Temperature range: 30 -500 ⁰C
Gases: nitrogen and oxygen

microDSC III (Setaram)

Temperature range: 0-120 ⁰C
(Suitable for low energy events. Solid samples and dilute solutions)

Thermogravimetric Analysis (TGA)

The change in weight of a sample is monitored while it is heated or held at a constant temperature in a specific atmosphere. Changes in mass are used to detect chemical or physical processes.

Applications: The technique is commonly used to study the stability or composition of a material. Application areas include: medicine/pharmaceuticals, environment/recycling, chemistry/plastics, agriculture, food, glass/ceramics. The TGA technique can be used for the following determinations:

  • Thermal and oxidation stability
  • Decomposition kinetics
  • Quantitative/qualitative analysis
  • Determination of volatiles/moisture
  • Pseudopolymorphism (determination of hydrates and solvates)
  • Determination of carbon black and ash

EQUIPMENT

Simultaneous TGA/DSC (SDT 650, TA Instruments)

Temperature range: Amb. T – 1200 ⁰C
Gases: nitrogen and oxygen

Equipo de laboratorio para análisis térmico y calorimetría con sistema automatizado de medición de muestras.

Simultaneous TGA/SDTA (851e, Mettler Toledo)

Temperature range: Amb. T – 900 ⁰C
Gases: nitrogen and oxygen

Dynamic Vapor Sorption (DVS)

The change in weight of a sample is monitored at a given temperature while subjected to varying humidity conditions.

Applications: Determining the effect of exposure to controlled temperature and humidity conditions is a valuable tool for a wide range of materials: pharmaceuticals, fine chemicals, polymers, fibers, food, agricultural products, building materials, and porous materials. The DVS technique can be used for the following determinations:

  • Sorption/desorption isotherms → stability studies (scaling, production, and storage conditions).
  • Quantification of amorphous content.
  • Polymorphism and pseudopolymorphism (formation of hydrates and solvates)

EQUIPMENT

Equipo de análisis térmico y calorimetría con pantalla digital para estudios de química física.

DVS Analyzer

Q5000 SA (TA Instruments)

Temperature range: 5-85 ⁰C
RH range: 0-98%
Gas: nitrogen

Thermomechanical Analysis (TMA)

TMA determines the dimensional changes of a sample as a function of temperature and applied force.

This technique allows the study of the behavior of various materials such as thermoplastics, thermosets, elastomers, adhesives and coatings, films and fibers, metals, ceramics, and composites. Application areas include: plastics, coatings and adhesives, electronics industry, pharmaceuticals, or textile industry. The TMA technique can be used for the following determinations:

  • Coefficients of thermal expansion
  • Glass transition temperature (Tg)
  • Deformation behavior
  • Delamination
  • Softening point
  • Expansion and contraction behavior
  • Solid-solid transitions
  • Elastic behavior, swelling, and melting

EQUIPMENT

Equipo de laboratorio para análisis térmico y calorimetría en estudios de química física.

TMA Analyzer

TMA/SDTA (840, Mettler Toledo)

Temperature range: Amb. T – 1100 ⁰C
Force range: -0.1 to 1.0 N in 0.0013 N increments
Gas: Nitrogen

Quartz probes and sample holders

The sample holder and probe depend on the type of sample and the application. Different accessories allow measurements on solid samples, foams, films, and fibers.

  • Standard sample holder for samples up to 20 mm and round tip probe (3.0 mm)
  • Film clamping device
  • Fiber clamping device
  • Bending device

Personnel

Josep Lluis Torres

Research Professor

Sonia Perez Rentero

Technical Staff