The storage modulus decreases as the temperature increases

How does loss modulus affect storage modulus?

Clearly, as chains begin to move more freely, loss modulus increases. Consequently, the material also becomes less stiff and more rubbery. The storage modulus drops. If tan delta is the ratio of loss modulus to storage modulus, it should increase at that point -- and it does.

How does storage modulus improve the efficiency of the media?

Studies conducted by Davies and Fletcher (1995), Kar et al. (2009a, 2009b), and Sankar et al. (2011) describe the improvement in the storage modulus and reduction in the free space between the polymer chains increases the efficiency of the media by providing the better shear strength characteristics.

How does frequency affect storage modulus?

The results would typically be presented in a graph like this one: What the graph tells us is that frequency clearly matters. When the experiment is run at higher frequencies, the storage modulus is higher. The material appears to be stiffer.

What happens if a polymer has a low storage modulus?

The reverse is true for a low storage modulus. In this case, the polymer is too liquid-like and may begin to drip out of the nozzle, and may not hold its shape very well . A similar parameter is loss modulus, which is the opposite of storage modulus, the polymer’s liquid-like character.

What is storage modulus?

Irfan Ahmad Ansari, ... Kamal K. Kar Storage modulus is the indication of the ability to store energy elastically and forces the abrasive particles radially (normal force). At a very low frequency, the rate of shear is very low, hence for low frequency the capacity of retaining the original strength of media is high.

What is the storage modulus of a miniemulsion polymer?

The storage modulus as a function of temperature at six different maleic acid concentrations is shown in Fig. 12.11. These are compared to the storage modulus of a miniemulsion polymer that contains no maleic acid. The storage moduli of the AOME-co-MMA-co-MA polymers are slightly higher than that of the AOME-co-MMA polymer.