A review of research and application of polylactic acid composites

Abstract

Polylactic acid (PLA) is a thermoplastic polyester that has received widespread attention for its environmentally friendly origin and excellent performance, and its potential to address the current problems of severe white pollution and scarcity of petroleum resources. This article focuses on the synthesis, modification, degradation and application of PLA. The main focus is on the modification of PLA with different environmentally friendly materials (natural organic materials, biodegradable polymers, inorganic minerals) in blends for defects such as the brittleness of PLA. In addition, the applications of PLA composites in the fields of construction, medical, packaging and oil and water separation are also introduced, which hopefully will provide some help to the promotion of PLA.

Influence of Chitosan and Grape Seed Extract on Thermal and Mechanical Properties of PLA Blends

“…Nevertheless, toughness and strong hydrophobic properties limit PLA for packaging and biomedical applications. Strategies to overcome this limitation are usually related to employing methods such as copolymerization [ 4 ] or the addition of fillers [ 5 ]. Nevertheless, the copolymerization process involves the use of chemicals or generates unsafe subproducts.…”

Pultrusion preparation and properties of continuous glass fiber reinforced polylactic acid thermoplastic composites

“…Polylactic acid (PLA) is a kind of thermoplastic polymer produced from lactic acid, which has been successfully utilized in biodegradable material and as a composite matrix material. [30][31][32][33][34] In addition, PLA is a promising and prominent biomaterial that has been widely used to replace the traditional petrochemicalbased polymers in various applications because of the environmental concerns and relatively good mechanical properties. 35 Especially green thermoplastic composites have gained greater attention as ecological consciousness has grown to be more appealing than conventional toxic and nonbiodegradable petroleum-based composites.…”

“…Polylactic acid (PLA) is a kind of thermoplastic polymer produced from lactic acid, which has been successfully utilized in biodegradable material and as a composite matrix material 30–34 . In addition, PLA is a promising and prominent biomaterial that has been widely used to replace the traditional petrochemical‐based polymers in various applications because of the environmental concerns and relatively good mechanical properties 35 .…”

Reinforcement‐material effects on the compression behavior of polymer composites

“…The low melting point, easy formability, mechanical property versatility, and the ease with which additives can be incorporated into the host polymer have all contributed significantly to reinforced functional parts. [4][5][6][7] Acrylonitrile butadiene styrene (ABS), [8][9][10] polylactic acid (PLA), 6,[11][12][13][14][15][16][17] thermoplastic polyurethane (TPU), 8,18 polyethylene terephthalate (PET), 8,19 glycol modified polyethylene terephthalate (PETG), 12,15,[19][20][21] high-density polyethylene 22 and many more are among the most frequent polymers generated through AM. 2,[23][24][25] Each of these polymers is useful for a variety of purposes due to its unique combination of mechanical strength, thermal qualities, and other characteristics.…”

“…14,19,25,29,31,32 In comparison to other AM technologies, FFF is the popular material extrusion process for fabricating polymer and their composites owing to its adaptability, fast fabrication speed, lower cost, higher mechanical properties, lack of toxicity, and wide range of possible materials. 3,16,33 The solid objects are often made using FFF technology, which a spool of filament made from a thermoplastic substance. 13,18,23,26,34 The thermoplastic materials are melted in a hot liquefier before being extruded through a nozzle to form the different shapes.…”