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In this investigation, the characterisation and preparation of Si2N2O particles from red matta rice husk and its epoxy biocomposites were characterized and examined. This study's objective is to evaluate the mechanical, wear, creep, thermal stability, flammability, and hydrophobicity behaviours of a Si2N2O -epoxy biocomposites coating for wood protection applications. According to the results of this experiment, silane-treated Si2N2O particles perform better when included than as-received particles. The composite with the designation RS22 exhibits the highest measured values for tensile strength, tensile modulus, flexural strength, flexural modulus, and Izod impact, respectively, of about 107 MPa, 4.31 GPa, 141 MPa, 5.61 GPa, and 1.1 J. However, as the volume percentage of Si2N2O particles is increased, a gradual decrement is seen. On the other hand, it is observed that the maximum wear resistance values were noted up to the 0.23 of coefficient of friction (COF) and 0.009 mm3/Nm for specific (sp.) wear rate by addition of 2.0 vol. % of silane-treated Si2N2O particles. Similar to this, for the same composite designation RS33, the lowest reported creep values were noted at about 0.0041, 0.0055, 0.0058, 0.0094, and 0.0103 for 2000 s, 4000 s, 6000 s, 8000 s, and 10,000 s, respectively. For the identical composite designated RS33, addition of silane-treated Si2N2O particles by 2.0 vol.% results in a minimal weight loss, a highest decomposition temperature of around 440°C, and the greatest degree of contact angle of roughly 126°. Accordingly, inclusion of Si2N2O up to 2.0 vol.% influences oxygen permeability in the same manner up to 1.5 (10x-2 cc.mm/(m2.d.atm)) and water permeability around 1.0 WC%. [ABSTRACT FROM AUTHOR]