Preparation of tungsten-doped PMP foams in micron dimension

Low-density tungsten-doped poly(4-methyl-1-petene) (PMP) polymer foams were prepared with thermal induced phase inversion method using PMP as the foam skeleton material, tungsten in micron dimension as doping materials, and upper ultra-high molecular weight polyethylene(UHWPE) as solution viscosity control agent. The results indicated that 10-m tungsten particle doped foams were synthesized uniformly when the mass content of UHWPE was 25%. The density of foam was 20 mg/cm3, while the mass content of doped tungsten reached up to 60%.