A systematic approach for the selection of additives for rotational molding process
Authors :- Ramkumar P.L.; Gupta N.
Publication :- Sādhanā 49, 47 (2024).
Rotational Molding is defined as a plastic manufacturing method wherein a benefit of stress-free plastic product is accessible. Linear Low-Density Polyethylene (LLDPE) has consistently been on elevated priority as base material for rotomolded product. Notwithstanding, LLDPE requires to annotate its strength as needed in couple of applications. Added substances or fillers can fill the void to upgrade the mechanical properties. A legitimate choice of additives to convey a suitable required mechanical property in rotationally molded product has consistently been on research mode. Composites prepared using synthetic fibers have always proved to sustain better mechanical properties in the end product. Multi-criteria dynamic procedures were utilized to address the selection of a suitable additive considering various attributes from an enormous number of options. In the current context of investigation, multi criteria decision making techniques (MCDM) like TOPSIS and MOORA strategies were made as a wellspring of help to select the feasible synthetic fiber that can be opted for blending with the base resin for rotational molding process. MCDM techniques has been observed to be fruitful in solving the real time problems for selection of materials. The findings thus attained are relatively reasonable and can be used in the design process of the roto-molded product for blending with the resin. Polyester from synthetic fibers was classified as the top-ranking material based on the characteristics used in deciphering these methods.