Addition method of additive to polymer powder

摘要

The invention provides an apparatus for introducing additives onto a polymer powder. It also provides a method for introducing an additive into a polyolefin powder, which method comprises the following steps: (a) adding the additive in a solvent to form a solution; and (b) introducing the solution to the polymer powder at a temperature of 60° C. or more, wherein, the solution is introduced to the polymer powder by spraying via a heated spraying means.