Knowledge Tree
polypropylene
Also known as: PP
Facts (10)
Sources
Recent breakthroughs in the valorization of lignocellulosic biomass ... pubs.rsc.org Jun 7, 2025 5 facts
referenceWu et al. (2021) published a study in International Journal of Biological Macromolecules titled 'Renewable Lignin-Based Surfactant Modified Layered Double Hydroxide and Its Application in Polypropylene as Flame Retardant and Smoke Suppression' (DOI: 10.1016/j.ijbiomac.2021.02.148).
referenceY. Liu et al. assembled functionalized lignin nanoparticles with MXene to reinforce polypropylene, resulting in materials with improved UV-aging resistance, electromagnetic shielding, and fire safety, as published in the International Journal of Biological Macromolecules (2024).
referenceGanster et al. demonstrated that man-made cellulose filaments with high tenacity can reinforce commercial polymers like polypropylene (PP), poly-(lactic acid) (PLA), and polystyrene for injection molding applications, improving mechanical properties and impact strength compared to glass fiber reinforcement due to their low density and anisotropic nature.
measurementWu et al. incorporated a lignin-based, sandwich-like bilayer structure into polypropylene using the melt blending method, resulting in a 62.9% decrease in peak heat release rate, a 25.1% decrease in total smoke release rate, and a 43.3% decrease in total smoke release rate compared to pure polypropylene.
referenceHigh-tenacity man-made cellulose fibers can be used to reinforce thermoplastics, specifically in injection moulding compounds with polypropylene and alternative matrices, as studied by J. Ganster, H. P. Fink, and M. Pinnow in 2006.
A critical review of industrial fiber hemp anatomy, agronomic ... bioresources.cnr.ncsu.edu 4 facts
claimPoly-3-hydroxybutyrate (P(3HB)) derived from hemp is strong, hydrophobic, biodegradable, biocompatible, non-toxic, and possesses thermoplastic properties similar to polypropylene.
claimEnzymatic treatment using pectinase and cellulase has improved the mechanical properties of composite materials made from hemp hurds, wood, and polypropylene.
claimHemp biocomposites are limited to processing temperatures below 230 °C to avoid thermal degradation of the bast fibers, making them suitable for polypropylene and polyethylene plastics but unsuitable for polyamides, polyesters, or polycarbonates which require temperatures above 250 °C.
measurementHemp-based bioplastics are 2.5 times stronger and 5 times stiffer than polypropylene (PP).
A shift from synthetic to bio-based polymer for functionalization of ... ouci.dntb.gov.ua 1 fact
referenceAcha et al. published 'Lignin in jute fabric–polypropylene composites' in Journal of Applied Polymer Science (2009), examining the integration of lignin into jute-based composites.