Taking octadecane/poly (styrene-methyl methacrylate) (P (St-MMA)) microcapsule as phase change materials

silicone rubber as carrier

octadecane/P (St-MMA)/silicone rubber composites were prepared. The join way and the addition of microcapsule

silicone rubber coated method were studied. The structure and morphology of the composite materials were study by infrared spectrum (IR) and scanning electron microscopy (SEM). Through mechanical properties test such as tensile strength

elongation at break

determine the best processing method. The thermal properties of the composite were studied by thermogravimetric analysis (TG)

differential scanning calorimetry (DSC) and thermal storage properties. Results showed that thermal and mechanical properties of octadecane/P(MMA-St) microcapsules/silicone rubber are good when the octadecane made microcapsules is added into the silicone rubber

and the amount of microcapsules is 2 phr (per hundred rubber)

the mechanical properties of composites by room-temperature silicone rubber coated microcapsule are superior to those of direct hot curing after blending and hot curing after mixed daub. The enthalpy value of octadecane/P (St-MMA)/silicone rubber composites is 67.6 J/g

the energy storage effect is good.