Tenders are invited for Portable Digital Kit for Measuring the Dielectric

Loss Angle and Tongs Volt-Meter

The dependence of the storage modulus (E') and the

loss angle tangent (tan 6) on temperature for SF/PU blend fibrous membranes are shown in Fig.

1A and 1B, respectively) as well as the capacitance of a capacitor with specimens representing its dielectric and the corresponding values of tangens of the

loss angle (Fig.

compound properties Properties on part Rubber compound properties Stiffness (deformation under stress) Modulus Damping at low frequency High

loss angle Low stiffening at high frequency Low

loss angle Fatigue life Tear strength Resistance to cut increase Adhesion to metal Adhesion to metal Durability Aging resistance ([O.

10 that the value of

loss angle tangent of PP prepared under same vibration frequency (10 Hz) is decreasing with the increasing vibration pressure.

The UR-2070 oscillating disk rheometer tests for elastic torque, viscous torque, elastic and viscous complex curve, tan delta curve,

loss angle curve, cure rate curve and test temperature curve, according to the literature.

15,: (i) where cotan [delta] is the cotangent of the

loss angle of a sample of said polyisoprene, measured at 130[degrees]C.

The dielectric measurements (dielectric constant [epsilon], tangent of the dielectric

loss angle tan [delta]) were performed with the Q-meter BS-3R (Shanghai, China), and the dielectric parameters were calculated using the formulas [26]

The glass transition (Tg) measurement precision of the Metravib DMA is said to result from many technical innovations and specificities, including auto-calibration of the

loss angle measurement, quality of the thermal control and precise control of dynamic test conditions.

0] is the amplitude of strain [-], [Omega] is the angular frequency of the driving force [rad/s], E is the modulus of the plastic [Pa], and [Delta] is the

loss angle of the plastic.

If a cyclic deformation is applied to a rubber, the rubber has both viscous and elastic components, and the

loss angle is the phase angle between these two components.

Elastosil R 752/50, for example, is suitable for low-modulus damping elements with particularly low rebound resilience (35%) at a

loss angle of 13 [degrees].