Research and application of polypropylene: a review

Abstract

Polypropylene (PP) is a versatile polymer with numerous applications that has undergone substantial changes in recent years, focusing on the demand for next-generation polymers. This article provides a comprehensive review of recent research in PP and its advanced functional applications. The chronological development and fundamentals of PP are mentioned. Notably, the incorporation of nanomaterial like graphene, MXene, nano-clay, borophane, silver nanoparticles, etc., with PP for advanced applications has been tabulated with their key features and challenges. The article also conducts a detailed analysis of advancements and research gaps within three key forms of PP: fiber, membrane, and matrix. The versatile applications of PP across sectors like biomedical, automotive, aerospace, and air/water filtration are highlighted. However, challenges such as limited UV resistance, bonding issues, and flammability are noted. The study emphasizes the promising potential of PP while addressing unresolved concerns, with the goal of guiding future research and promoting innovation in polymer applications.

Keywords: Applications; Membrane; Nanomaterial; Polymer; Polypropylene (PP).

Fig. 1

Chronological development of the PP over the decades

Fig. 2

Schematic diagram of the PP-based water filtration mechanism

Fig. 3

Schematic diagram of the PP-based air filtration mechanism

Fig. 4

Schematic illustration of the PP-based scaffold for biomedical application

Fig. 5

Preparation techniques of a wood plastics composite, b injection molded composite, c fiber reinforced composite, d sheet molded composite

Fig. 6

Schematic illustration of various applications for PP fibers