Dynamic Mechanical Analysis (DMA) Service

Dynamic Mechanical Analysis (DMA) is an advanced material characterization technique that provides insights into the viscoelastic properties of polymers and other materials. This method subjects a material sample to a controlled oscillating stress or strain and measures the resulting dynamic response, offering a comprehensive understanding of a material's mechanical behavior over a range of conditions.

What is Dynamic Mechanical Analysis (DMA)?

Dynamic Mechanical Analysis (DMA) functions based on the core principles of rheology, focusing on the study of material flow and deformation. During DMA testing, a sample undergoes sinusoidal stress or strain at a specific frequency and temperature, and the resulting stress or deformation is measured. DMA provides essential parameters such as the storage modulus (indicative of the material's elastic behavior), the loss modulus (representing the viscous properties), and the loss factor or tangent delta (tan δ), which reveals the material's damping characteristics by comparing the loss modulus to the storage modulus.

Why Do Dynamic Mechanical Analysis (DMA)?

• Non-Destructive Testing: DMA is primarily non-destructive, enabling multiple tests on the same sample without causing permanent damage.
• Temperature and Frequency Sweeps: DMA can assess material properties across a wide range of temperatures and frequencies, offering a comprehensive analysis of material behavior under various conditions.
• Phase Transition Detection: DMA excels at detecting phase transitions, including critical factors like the glass transition temperature (Tg), essential for understanding material performance.
• Material Optimization: By deciphering viscoelastic properties, DMA supports the development of materials customized for specific applications, boosting performance and longevity.
• Quality Control: DMA acts as a valuable tool for quality assurance, guaranteeing consistency and reliability in material properties.

Our Services

At CD BioSciences, we pride ourselves on offering a comprehensive DMA service that caters to the needs of researchers and developers working with environment-friendly materials. Our service is designed to provide accurate, reliable, and detailed analysis to support the advancement of sustainable materials science.

Methods of Dynamic Mechanical Analysis (DMA)

Our DMA services employ several methods to assess material properties:

• Amplitude Sweep: To determine the linear viscoelastic range of materials.
• Frequency Sweep: To analyze time-dependent material behavior.
• Temperature Ramp: To identify transition temperatures and study the effect of temperature on material properties.
• Humidity Sweep: To evaluate the impact of relative humidity on material properties.

Sample Requirements

Workflow of Dynamic Mechanical Analysis (DMA)

• Sample Preparation: Samples are meticulously prepared to meet specific geometry and size requirements.
• Clamping: Samples are firmly secured within the measurement head of the DMA instrument.
• Sinusoidal Force Application: A precise sinusoidal force is exerted on the sample, and the subsequent deformation is observed.
• Data Collection: The correlation between the applied force and the resulting deformation is meticulously measured and documented.
• Analysis and Reporting: The gathered data undergoes thorough analysis to generate a comprehensive report detailing the material's mechanical characteristics.

At CD BioSciences, our DMA service is dedicated to supporting the development and analysis of environment-friendly materials, contributing to the advancement of sustainable materials science and technology. If you are interested in our services, please contact us for more information.

Our products and services are for research use only and cannot be used for any clinical purposes.