The viscoelastic properties, such as storage modulus (E′), loss modulus (E″), loss factor (tan δ), and stiffness of PPW composites as a function of temperature were determined using a DMA Q800 equipment (TA Instruments Inc., New Castle, DE, USA), which operated with dual cantilever bending. Data processing was performed with Universal Analysis 2000 software (Version 4.5 Build 4.5.0.5, New Castle, DE, USA). Rectangular specimens having a width of 10.56 mm, a thickness of 4 mm, and a length of 60 mm were examined according to the testing program conducted, from ambient temperature to 150 °C, with a constant heating scan of 3 °C min−1, a frequency of 1 Hz, and amplitude of 15 µm.
Dma q800 equipment
Manufactured by TA Instruments
Sourced in United States
The DMA Q800 is a dynamic mechanical analyzer that measures the mechanical properties of materials. It provides data on a material's stiffness, damping, and glass transition temperature. The equipment is capable of performing various tests, including tension, compression, and shear, on a wide range of sample types.
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Lab products found in correlation
2 protocols using dma q800 equipment
1
Viscoelastic Properties of PPW Composites
2
Characterizing Materials and Organs with DMA
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Dynamic Mechanical Analysis (DMA) applies an oscillating force to a sample and analyzes the response of the material to that force [34] . DMA calculates not only the complex modulus (E*), the storage modulus (E') and the loss modulus (E''), but also the dynamic viscosity (ŋ*) and the stiffness (K*) as well as the stress-strain curves. Additionally, the complex modulus is obtained by relating the storage modulus with the loss modulus (see Equation 1): 1)
Both organs and materials were tested using a DMA Q800 equipment of TA Instruments at 37ºC, 1 Hz and a pre-load force of 0.001 N (Figure 1). Additionally, strain amplitudes covered a range between 10 µm to 100 µm. The samples were kept in the linear elastic regime, and hence, the stressstrain relationship is linear [35] .
Additionally, the Young's Modulus (E) was determined from the stress-strain curves obtained with the DMA by the compression tests using the following equation (see Equation 2): 2)
Both organs and materials were tested using a DMA Q800 equipment of TA Instruments at 37ºC, 1 Hz and a pre-load force of 0.001 N (Figure 1). Additionally, strain amplitudes covered a range between 10 µm to 100 µm. The samples were kept in the linear elastic regime, and hence, the stressstrain relationship is linear [35] .
Additionally, the Young's Modulus (E) was determined from the stress-strain curves obtained with the DMA by the compression tests using the following equation (see Equation 2): 2)
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