Fill to reduce the cost of plastic refers to add the low cost filler into the resin, or named additive
agent.The commonly used fillers are natural mineral and industrial waste residue and so on,
besides,the wooden powder,nut shell powder ,organic filler and wast thermosetting plastic
powder also belong to filler.Filler is the most widely used and largest consumption plastics
additives.
The purpose of the plastic filling is mainly to reduce the cost for the thermosetting plastic.
Except reduce cost,the filler cannot improve the performance of the product.The rigidity,heat
resistance(inorganic filler),dimension stability,reduce the molding shrinkage,and creep
resistance,etc can be commonly improved.Some even can improve the insulation,flame
retardant,smoke elimination and sound insulation,etc.