Which consequence results when cross-linking polymers degrade in old car tires?

💡 Explanation

Degradation breaks the sulfur cross-links via reversion, reducing the constraints on polymer chain movement. This causes increased hysteresis through viscoelastic effects, resulting in higher energy dissipation and rolling resistance; therefore the resistance increases, rather than handling benefits occuring due to less chain constraints.

• Which consequence results when the inertial confinement fusion (ICF) target implodes asymmetrically?
• Which risk increases within reactor shielding when neutron flux decays?
• Which effect is worsened when dielectric spacing decreases in resonant cavity waveguides at gigahertz frequencies?
• Which phenomenon impedes the use of hydrogen as engine fuel?
• Which outcome occurs when antibonding orbitals become filled in diatomic Beryllium?
• Which risk increases when pulsed-laser ablation heats ceramic?