highly significantP < 0.5
The results of the current study show that subgroups E HTV and E RTV have higher tear strengths than subgroups C HTV and C RTV [ Figure 1 ]; thus, incorporation of nanofiller and intrinsic pigments into the matrix of silicon improves the tear strength of the resulting materials.[ 11 13 15 23 ] The highly significant improvement in tear strength of both elastomers ( P < 0.5) may be due to the dispersion of strain energy adjacent to the ends of rising cracks through polymer ability.