DSC Testing And Analysis Laboratory

Differential Scanning Calorimetry (DSC) Lab Analysis of Rubbers and Elasotmers /

Thermal Analysis Lab Services for Rubbers & Elastomers

Introduction:

Differential scanning calorimetry (DSC) measures temperatures and heat flows corresponding to thermal transitions in plastics.  In this DSC analysis, the difference in the quantity of heat required to raise the temperatures of a sample and a reference are measured as a function of temperature. Both the sample and the reference are maintained at nearly the same temperature throughout the study. DSC measures endothermic and exothermic transitions as a function of temperature Normally, the DSC analysis and testing programs are designed to run the entire study in a linear fashion.

DSC analysis of plastics can give valuable insight of plastics under study. Plastic DSC analysis can be used in the quality testing and inspection of plastic right from incoming of plastic raw material till up to the formation of final product. Plastic DSC testing can also be used in the identification of plastics, plastic mix up, or regrind plastic analysis. DSC analysis can very well be used in evaluation of properties like melting point, crystallization temperature etc. DSC analysis can also be sued in contamination analysis of plastics. Conventional methods for identifying vulcanized elastomers would not detect if, for example, Teflon or Nylon had been added. Differential Scanning Calorimeter can also assist in determination of enthalpies, Glass Transition (Tg) and crosslink density.

APPLICATION :

Common usages of DSC include investigation, selection, comparison, and end-use performance evaluation of materials in research, quality control, and production applications.  DSC is commonly used to measure a variety of properties in both organic and inorganic materials, from metals and simple compounds to polymers and pharmaceuticals. The properties measured include:

1. DSC Analysis is used widely for examining Plastic materials to determine their thermal transitions. Important thermal transitions during plastic analysis include the glass transition temperature, crystallization temperature, and melting temperature

2. DSC Analysis can also be used to study thermal degradation of plastics using an approach such as Oxidative Onset Temperature.

3. DSC Analysis curve can be used to calculate enthalpies of transitions.

4. Differential scanning calorimeter can be used to measure a number of characteristic properties of a plastic sample. Using this thermal analysis technique it is possible to observe fusion and crystallization events as well as glass transition temperatures Tg. DSC can also be used to study oxidation, as well as other chemical reactions.

5. Differential scanning calorimeter used for failure analysis of plastic.

Our team of engineers and scientists can do DSC testing and analysis on your plastic samples and can help you to obtain as much as information as possible related to its thermal transitions. Our DSC Instruments are very advance and are equipped with robots that can function 24 x 7.  We can provide you with following services

• Glass transitions by DSC Analysis lab services
• Phase changes by DSC Analysis lab services
• Melting Temperature by DSC Analysis lab services
• Crystallization by DSC Analysis lab services
• Product stability by DSC Analysis lab services
• Cure/cure kinetics by DSC Analysis lab services
• Oxidative stability by DSC Analysis lab services
• Thermal Stability by DSC Analysis lab services
• Advanced DSC Lab Analysis of Rubbers and Elastomers
• DSC Analysis Lab Services from -80C to 500C
• Heat capacity and heat of fusion measurements

Example – : A typical example of DSC analysis of plastic to evaluate the effect of additives on the melting point of plastics used in the manufacturing of pharma plastic product was studied. The result and the thermogram is attached.

Result:-

melting to a liquid requires more heat flow

to the sample than a sample undergoing crystallization because the sample will absorb

heat as it undergoes the endothermic phase transition from a solid to a liquid.

DSC ANALYSIS OF PLASTICS

The above DSC testing allowed our client to accurately evaluate and monitor the minor melting point changes that were happening due to the changes that they were making in their formulations.