Open AccessDegradation of fundamental polymers/plastics used in daily life: a review
Author(s) -
Netra Lal Bhandari,
Ganesh R Bhandari,
Sunita Bista,
Bharat Mani Pokhrel,
Kabita Bist,
Kedar Nath Dhakal
Publication year - 2021
Publication title -
bibechana
Language(s) - English
Resource type - Journals
ISSN - 2382-5340
DOI - 10.3126/bibechana.v18i1.29619
Subject(s) - polylactic acid , degradation (telecommunications) , thermogravimetric analysis , polyethylene , polymer , materials science , biodegradation , chemical engineering , catalysis , chemistry , organic chemistry , composite material , telecommunications , computer science , engineering
Polymers are made from the monomers that are used for packaging purposes. The degradation of polymers can take place either abiotic or biotic pathways. Abiotic pathway occurs from thermal, photo-degradation, and catalytic methods whereas, biotic occurs in presence of different types of microorganisms. The degradation of polymers (polyethylene and polylactic acid) was explained by the thermal, catalytic, and biodegradation process. The thermal degradation of polyethylene and polylactic acid was explained by the thermogravimetric analysis (TGA) curve. Catalysts such as zeolites and amorphous silica-alumina are used for the degradation of polyethylene whereas, tin for polylactic acid. Microorganisms such as bacteria, fungus, and actinomycetes help for the degradation of polyethylene and polylactic acid.
BIBECHANA 18 (2021) 240-253