engleski

Effect of filler treatment on the thermal properties of composites and polymer blends

Thermoplastic composites and their blends were compounded with a twin – screw extruder and injection moulded. The effect of the addition of silane treated and untreated talc as filler on thermal properties of polymer composites and TPU/PP blends were investigated. Organosilane (3-glycidoxyoxypropyl-metoxy silane) coupling agent was used to treat talc in order to improve the affinity relative between the filler and the composite as well as TPU/PP blends. The obtained results showed that the thermal properties of the talc filled TPU, PP composites and TPU/PP blends were improved with the addition of talc. The DMA storage modulus of the TPU/PP blends increased with the addition of talc, because the talc generated a stiffer interface in the polymer matrix. The comparation results of thermal properties among samples filled with silane treated and untreated talc filler showed that the polymer composites and TPU/PP blends filled with silane treated talc displayed the better thermal properties.

composites; polymer blends; talc; coupling agent

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