Preparation of solid buoyancy material of melamine-formaldehyde resin filled with EPS
Melamine formaldehyde resin was prepared with melamine and formaldehyde as raw materials,which was filled with expandable polystyrene(EPS)microspheres to prepare melamine formaldehyde resin-based solid buoyancy material via intermittent process.The cross-sectional microstructure,mechanical properties,water absorption rate,and compressive strength of the buoyancy material were tested and analyzed.The particle size of EPS microspheres that affects the density of the buoyancy material and the content of EPS microspheres that affects the energy storage modulus of the buoyancy material were discussed.The results show that with the increase of hydro static pressure,the water absorption rate of buoyancy materials increases.When the static water pressure exceeds 80 MPa,the structure of buoyancy materials is significantly damaged,and the water absorption rate increases sharply.The material performs excellently underwater,whose mechanical properties and dynamic mechanical properties meet the basic application requirements.
expandable polystyrenemelamineformaldehydesolid buoyancy materialintermittent process
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