Influence of polysiloxane microspheres on hydrophobicity, structure and mechanical properties of paper materials

Abstract The aim of the study was to investigate impact three types polysiloxane microspheres on barrier properties, structure and mechanical properties paper. An influence new silicon filler cellulose paper sheet analyzed. Polysiloxane were used as an additive introduced into network cellulosic fibers in order obtain functional following research: M1 hydrophilic average diameter 23.5 µm, M2 hydrophobic 3.1 µm M3 µm. obtained handsheets analyzed for changes apparent density, roughness, tensile strength, bursting tear resistance. Wettability resistance liquid characterized by contact angle measurement, penetration dynamics analysis uniformity measured using extended analyser. It found that presence (small diameter) improved significantly paper’s hydrophobicity without changing properties. addition (large decreased samples did not improve their hydrophobicity. However, resulted increased through structure. presented studies also show it is possible with high only filling application when are this purpose. results indicate necessary hydrophobize entire material achieve its Graphic abstract