Journal
POLYMERS
Volume 14, Issue 1, Pages -Publisher
MDPI
DOI: 10.3390/polym14010202
Keywords
natural fiber; polylactic acid; polylactic acid blends; polylactic acid composites
Categories
Funding
- Universiti Teknologi Malaysia [CRG 30.3]
- Retardant coating using graphene/bamboo aerogel mixtures on SAR robotics system [PY/2020/03495-R.J130000.7351.4B534]
- Universiti Putra Malaysia
- Ministry of Higher Education Malaysia (MOHE) [JPT (BPKI) 1000/016/018/25 (57), FRGS/1/2021/TK0/UPM/02/21]
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This article presents the research progress and characteristics of polyactic acid (PLA) and its natural fiber-based green composites. PLA, as a thermoplastic polymer, has wide potential in replacing traditional polymers. Green composites, with advantages such as degradability, recyclability, high strength, and low toxicity, have been extensively used in fields like packaging and medicine. The article also discusses the research issues, challenges, and future development directions of PLA-based green composites.
Polylactic acid (PLA) is a thermoplastic polymer produced from lactic acid that has been chiefly utilized in biodegradable material and as a composite matrix material. PLA is a prominent biomaterial that is widely used to replace traditional petrochemical-based polymers in various applications owing environmental concerns. Green composites have gained greater attention as ecological consciousness has grown since they have the potential to be more appealing than conventional petroleum-based composites, which are toxic and nonbiodegradable. PLA-based composites with natural fiber have been extensively utilized in a variety of applications, from packaging to medicine, due to their biodegradable, recyclable, high mechanical strength, low toxicity, good barrier properties, friendly processing, and excellent characteristics. A summary of natural fibers, green composites, and PLA, along with their respective properties, classification, functionality, and different processing methods, are discussed to discover the natural fiber-reinforced PLA composite material development for a wide range of applications. This work also emphasizes the research and properties of PLA-based green composites, PLA blend composites, and PLA hybrid composites over the past few years. PLA's potential as a strong material in engineering applications areas is addressed. This review also covers issues, challenges, opportunities, and perspectives in developing and characterizing PLA-based green composites.
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