Processing Aid

Processing aids are utilized in the rubber and blending industries, particularly as chemical softeners, to modify the steps involved in the mixing process or to assist in specialized ways during extrusion, calendaring, or molding. Certain rubbers, particularly natural rubbers and synthetic rubbers with high viscosity, necessitate an initial chain breakage step during mixing. This step is undertaken to soften the rubber for enhanced processability and increased adhesion after mixing. Process aids also regulate the rate and speed of chain breakage and aid in dispersing other mixing materials.

This process reduces shrinkage by lowering the molecular mass, thereby improving the preparation of products through extrusion, calendaring, and molding methods. Additionally, it can enhance the processability and surface quality of rigid PVC formulations by raising the melting point through the decomposition of PVC particles at a temperature lower than degradation.

Applications:

•         Rubber Industry: Processing aids soften rubber, improve mixing, enhance processability, and reduce shrinkage in extrusion, calendaring, and molding processes.

•         Plastic Industry: Processing aids improve processability and surface quality of rigid PVC formulations by raising the melting point and aiding in the decomposition of PVC particles at lower temperatures.

•         Blending Industry: Processing aids aid in proper dispersion and mixing of materials, reducing agglomeration and ensuring uniform distribution in blends.

•         Food and Beverage Industry: Processing aids enhance manufacturing processes, acting as emulsifiers, stabilizers, and thickeners to improve texture, consistency, and shelf life of food products. They also aid in clarification and stabilization of beverages.

•         Pharmaceutical Industry: Processing aids improve flow properties, dissolution rates, and stability of pharmaceutical formulations in granulation, tablet compression, and coating processes.