Carbon nanotube (CNT)

CNT has attracted much attention because of its large aspect ratio, high modulus, extremely high toughness and low density, so CNT has been widely studied in the field of liquid silicone rubber strengthening. It was found that the initial modulus of liquid silicone rubber reinforced with SWNT increased with the increase of SWNT addition. The high aspect ratio, low density and good dispersibility of SWNT in rubber matrix have outstanding strengthening effect on composites. In addition, many studies have shown that CNT can enhance the thermal conductivity of silicone rubber at the same time.

graphene

Graphene is a kind of two-dimensional nanomaterial with hexagonal lattice array formed by sp2 carbon atom hybridization. It has excellent electrical, thermal and physical and mechanical properties, stable performance, wide source and simple preparation, and is an ideal functional filler.

Tevs-go/liquid silicone rubber was prepared by in situ method by the modification of GO with vinyl triethoxysilane (TEVS). The results show that when the mass fraction of TEVS-Go is 0.3%, The tensile strength, tear strength and shear strength of liquid silicone rubber were 2.3 times, 2.79 times and 1.97 times higher than those of pure liquid silicone rubber, respectively. At the same time, the thermal decomposition temperature of 10% weight loss was increased by 16℃, and TEVS-GO showed good enhancement effect.

Nanometer zinc oxide

ZnO is a commonly used vulcanizing activator in rubber industry, and can also be used as a filler to improve the physical and mechanical properties and thermal conductivity of materials. In theory, reducing the particle size and increasing the specific surface area of ZnO are beneficial to improve the reactivity. Therefore, nano-zno can be used as functional reinforcing filler of liquid silicone rubber.

Nano titanium dioxide

Nano titanium dioxide has the characteristics of less surface defects, more unpaired atoms and large specific surface area. When used to strengthen rubber, it is easy to occur physical or chemical bonding and increase cross-linking sites, which is beneficial to improve the physical and mechanical properties of rubber materials. When subjected to the external force in the stress field, nano titanium dioxide in the matrix of micro-deformation and absorb energy, rubber material shows good radiation resistance.