Additives
Processing Aids(PY)
Processing aids are materials that are added to improve the processability of polymeric compounds. Improved processability lowers the cost and improves the quality of the polymer. With the help of processing aids, extrusions run thinner and faster and molding cycles shorten. PVC's, polyolefins, nylons and other engineering plastics are known to benefit the most from the addition of processing aids. Most used processing aids are styrenes, acrylics, calcium carbonates, lubricants, silicone oils etc.
Polymeric processing aids are particularly important to solve productivity issues, to overcome problems due to stick and slip conditions during extrusion, to improve the optical properties such as haze and transparency, and to avoid surface defects usually called surface melt fracture or sharkshrink in polyolefin films.
