摘要:
Extruded synthetic resinous thermoplastic foams of increased cell size are obtained when using volatile fluid blowing agents by incorporating a cell-size enlarging agent into the extruded composition, the cell-size enlarging agent being liquid at the foaming temperature and generally soluble in the heat-plastified foamable mixture.
摘要:
High density, dead burned refractory magnesia (MgO) is produced by sintering compacts formed by simultaneously thermally dehydrating and mechanical working an aqueous slurry of magnesium hydroxide.
摘要:
High density, dead burned refractory magnesia (MgO) is produced by sintering compacts formed by simultaneously thermally dehydrating and mechanically working an aqueous slurry of magnesium hydroxide.