Neopentyl glycol dibenzoate (NPGDB) can serve as a thermoplastic processing aid in various polymer systems, including polycarbonate (PC) and talc-filled polypropylene (PP).
POLYCARBONATE (PC)
Improved Flow Properties
NPGDB can act as a lubricant and flow enhancer in PC formulations. It helps to reduce melt viscosity and enhance melt flow during processing, improving the fill of complex molds and reducing the risk of defects such as flow lines or voids.
Reduced Processing Temperature
The addition of NPGDB can lower the processing temperature required for PC, leading to energy savings and reducing the risk of thermal degradation during processing.
Enhanced Surface Finish
NPGDB can contribute to the improvement of the surface finish of molded PC parts by reducing melt fracture and promoting the formation of smooth surfaces.
TALC-FILLED POLYPROPYLENE (PP)
Improved Dispersion of Talc
NPGDB can aid in the dispersion of talc filler within the PP matrix, ensuring uniform distribution and reducing the risk of agglomeration or clustering of talc particles.
Enhanced Processing Stability
The presence of NPGDB can improve the processing stability of talc-filled PP formulations by reducing melt viscosity variations and promoting more consistent processing conditions.
Reduced Die Build-Up
NPGDB can help reduce die build-up and fouling during processing of talc-filled PP, leading to smoother extrusion and improved dimensional stability of the final product.
In both PC and talc-filled PP formulations, NPGDB acts as a lubricant and processing aid, improving flow properties, enhancing processing stability, and potentially improving the quality of the final product.