Abstract
Poly (p-phenylene sulfide) (PPS) is a material with strong mechanical properties and chemical stability. However, PPS has a low thermal conductivity of 0.18 W/m•K, which limits its applications in fields requiring heat dissipation properties. In this work, to improve the mechanical and thermal properties, aggregated boron nitride (ABN) and graphene oxide (GO) fillers were added into the PPS/glass fiber (PPS/GF) system with proper treatment. ABN was covered with amine-functional polysiloxide and heat-treated to withstand and maintain the morphology after the composite molding process. Additionally, GO underwent 3-mercaptopropyl trimethoxysilane (MPTMS) treatment (MGO) to enhance the interface adhesion between the glass fiber filler and PPS matrix. By adding PSZABN and MGO into the PPS/GF system, the mechanical properties, storage modulus, and tensile strength were improved, and the thermal conductivity of the PPS/GF@20PSZABN@10MGO composite was 1.18 W/m•K, which is 6.55 times improved than that of pristine PPS.
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