Design of Dual Hybrid Network Natural Rubber-SiO₂ Elastomers with Tailored Mechanical and Self-Healing Properties.

ABSTRACT: The preparation of natural rubber (NR)-silica (SiO₂) elastomeric composites with excellent mechanical properties along with better self-healing ability remains a key challenge. Inspired by the energy dissipation and repairability of sacrificial bonds in biomaterials, a strategy for combining covalent and noncovalent sacrificial networks is engineered to construct a dual hybrid network. Here, the approach used to fabricate the composites was self-assembly of NR, bearing proteins and phospholipids on its outer bioshell, with SiO₂ via metal-ion-mediated heteroaggregation effected by reversible electrostatic and H-bonds. Further, covalent cross-links were incorporated by a silane coupling agent, bis [3-(triethoxysilyl) propyl] tetrasulfide. The intrinsic self-healing abil

SUBMITTER: Sattar MA 

PROVIDER: S-EPMC6648382 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature