Effect of Silane as Coupling Agent on Dynamic Mechanical Properties of Volcanic Ash Filled PPS Composites

Abstract

The purpose of this study is to investigate the effect of surface modification of volcanic ash particles on dynamic mechanical properties of volcanic ash filled polyphenylene sulfide (PPS) composites. For this purpose volcanic ash particles were modified with 1, 3, 5 vol.% of 3-aminopropyltriethoxysilane (3-APTS) which has an organic functional group. All volcanic ash/PPS composite samples were prepared by using DSM Xplore 15 ml twin screw microcompounder and DSM Xplore 12 ml injection molding machines. The content of volcanic ash in composite samples was varied as 10 and 15 wt%. Volcanic ash filler dispersion and adhesion between volcanic ash particles and PPS matrix were examined by scanning electron microscopy. Dynamic mechanical properties such as storage modulus (E ) and glass transition temperature (Tg) were investigated by TA Instruments Q800 dynamic mechanical analyzer. During the experiments, the relation between silane coupling and dynamic mechanical properties was evaluated.

Mechanical and thermal properties of volcanic particle filled PLA/PBAT composites

“…Micro compounding and injection molding process parameters were given in Table 1. After determining the optimum PBAT content, in the second part of this study, five different sets of VP filled composites (5,10,15,20, and 25 wt %) were prepared to determine the mechanical and thermal properties of PLA/PBAT/VP ternary composites. The formulation of all materials was shown in Table 2.…”

“…Therefore it was aimed in this study to shed light on the influence of VP addition to the PLA/PBAT blends. For this purpose, PLA/PBAT blends were first prepared at various PBAT contents (10,20,30, and 40 wt %). After determining the optimum PLA/PBAT composition from tensile tests, VPs were introduced into to this matrix at different amounts (5,10,15,20, and 25 wt %).…”

“…For this purpose, PLA/PBAT blends were first prepared at various PBAT contents (10,20,30, and 40 wt %). After determining the optimum PLA/PBAT composition from tensile tests, VPs were introduced into to this matrix at different amounts (5,10,15,20, and 25 wt %). The influence of VP addition on the mechanical and thermal properties PLA/PBAT blends were investigated usind DSC, TGA, Fourier transformation infrared spectroscopy (FTIR) analysis, and tensile tests.…”

“…Therefore, the addition of this new type of filler to any polymer could lead an effectively reinforced polymer composite. Çoban et al investigated the effect of surface modification of VPs on dynamic mechanical properties of VPs filled polyphenylene sulfide (PPS) composites. The results showed that storage modulus of VP/PPS composited increased with increase of silane coupling agent up to 3 vol % content.…”

Silane surface modification of boron nitride for high thermal conductivity with polyphenylene sulfide via melt mixing method

“…Inhomogeneous dispersion of fillers in a polymer matrix can cause high resistance to thermal conduction at the interface, thereby reducing the thermal conductivity of the composite. Therefore, further surface treatment is necessary to make reaction sites available on the particle surface to increase the dispersion of BN particles . Kim et al developed surface‐modified BN/epoxy‐terminated dimethylsiloxane (ETDS) composites with improved thermal conductivity and dispersion of boron particles …”