GRT/LLDPE composites

Figure 2. Influence of ground rubber tire particle size on MFI and impact energy of 40 wt% GRT-LLDPE composites.

Figure 3. Effect of reactive coupling on GRT-LLDPE composites (a) pure LLDPE, (b) 40 wt GRT-LLDPE composite, (c) 40 wt% GRT-LLJ)PE composite with 4 wt% EGM.

In blends with LLDPE at 40 wt% the GTB actually results in an increase in the impact strength over pure LLDPE, compared to a 50% drop for GRT composites of similar particle size. Lower cross-link density and differences in the carbon black filler loads may result in a lower modulus for the GTB particles than for the GRT particles, which could also lead to the mechanical property improvements. However, no difference in modulus of the particles is suggested on comparing the relative stiffness of blends with GTB and GRT. Scanning electron... 

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