The invention belongs to the technical field of preparing a plastic product, and particularly relates to filling master batch capable of increasing strength and
toughness of the plastic product and a preparation method of the filling master batch. The filling master batch is prepared by inorganic
powder, a dispersing agent, a lubricating agent, a
coupling agent, a heat stabilizer and carrier resin, and the inorganic
powder is a mixture which is compounded by talcum
powder and
mica powder, of which the average grain diameters are 6-8 mum, in 1 : 1
mass ratio by passing through a 1800-2000 mesh screen. The filling master batch provided by the invention is mainly used for replacing part of
synthetic resin in raw materials of an existing plastic product. Compared with the prior art, according to the filling master batch provided by the invention, the cost is low, and the production cost can be reduced to a large extent after part of the
synthetic resin is replaced; and meanwhile, the filling master batch provided by the invention has the advantages of increasing the production efficiency, improving the product mechanical performance, increasing the heat-resisting temperature of the plastic product and the like, the plastic product, particularly a thin film product, which is prepared by adding the filling master batch is suitable for printing and is suitable for food and medical
packaging industry.