Abstract:
A method for preparing a graphene oxide/white carbon black/rubber nanocomposite material is described. The prepared graphene oxide/white carbon black/rubber nanocomposite material contains nanoscale graphene oxide and white carbon black that are highly dispersed. The nanocomposite material has a relatively high modulus, excellent wear resistance and tear resistance, a relatively low rolling resistance, and at the same time has a low air-permeability and excellent self-healing capability.
Abstract:
A composition for manufacturing the inner liners and inner tubes of tires, and a method of preparing the same. The composition includes the following two phases: A) a continuous phase of a composition of graphene oxide/rubber including graphene oxide, a reactive rubber, and a solid rubber; and B) a dispersion phase of an epoxy natural rubber or a thermoplastic resin. In the composition of graphene oxide/rubber, the graphene oxide leads to low gas permeability and remarkably reinforces the rubber composition. The epoxy natural rubber or thermoplastic resin is dispersed in the composition of graphene oxide/rubber and forms an islands-in-the-sea structure. The composition has low gas permeability, excellent mechanical properties, and flexibility, and is adhesive to adjacent rubber.
Abstract:
The present disclosure relates to gutta-percha containing carbon nanotubes and a preparation method therefor. The gutta-percha is prepared by mixing a raw material, prepared from the following components of eucommia ulmoide gum, zinc oxide and carbon nanotubes, and extruding the mixed raw material. An orientation factor of the carbon nanotubes in the gutta-percha is greater than 10.8. The preparation method comprises: mixing the components according to dosages, and extruding a mixed product to prepare the gutta-percha containing carbon nanotubes.
Abstract:
A process for preparing a completely delaminated graphene oxide/rubber nanocomposite. The process combines emulsion compounding with flocculation or spray drying, retains the morphology of graphene oxide/rubber composite in a liquid state, and achieves highly dispersed and highly delaminated morphology dispersed on nano scale. Furthermore, a substance able to produce ionic bonding or chemical bonding with the surface functional groups of graphene oxide is added to graphene oxide/hydrosol, as a surfactant, thus the interfacial bonding between graphene oxide and the rubber is increased. The composite is subjected to subsequent compounding and vulcanization to prepare a vulcanizate with dynamic performance, such as a high tensile strength, stress at a definite elongation, tearing strength, etc.