Although styrene-acrylate systems exhibit significant sound damping properties, less attention has been paid to the relationship between their damping and acoustic behavior. In this study, styrene-acrylate latex particles with a core-shell structure were synthesized and the effect of the shell feeding method, crosslinker ratio, core monomer type and methyl methacrylate ratio in the shell on the mechanical properties of the latex was studied. DLS analysis revealed uniform latex particle size distribution (150-185 nm) and zeta potential measurements (-56 to -30 mV) indicated particle stability. SEM and TEM results confirmed the spherical morphology and complete coverage of the core by the shell. Damping and acoustic properties were investigated using DMTA analysis and impedance tube, respectively. Comparison of the acoustic test results with theoretical calculations showed a strong correlation at 2000 Hz. In order to compare the damping and acoustic properties, a simple linear equation between TAeffect and NRC was proposed which showed a strong correlation (R2=0.97) between mechanical and acoustic damping results.

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