Abstract
The purpose of this paper is to study the effects of different amount of hollow glass microspheres (HGM) on the flame retardancy and mechanical properties of polypropylene (PP)/ reinforced nitrogen-phosphorus compound intumescent flame retardant (IFR)/ Chopped carbon fiber (CCF) composites for electric meter turnover boxes. To this end, the melt blending method was used by taking the CCF, reinforced IFR, and flame-retardant PP composite as the matrix. Then, the modified HGM was added to obtain the PP/IFR/CCF/HGM flame retardant reinforced composites for electric meter turnover box. Through the analysis of its performances in combustion, bending, impact, tensile strength and hardness, the results show that with certain amount of HGM, the flame-retardant properties and mechanical properties of the composite materials for meter turnover box can be improved; with more addition of HGM, the mechanical properties of the composite material would be significantly reduced; when 10 times of HGM amount is added, the mechanical properties of the composite material are optimal.
