The Sustainability of Plastic Nets in Agriculture
| Autor: | Chrysanthos Maraveas |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
compost
Materials science lcsh:TJ807-830 Geography Planning and Development lcsh:Renewable energy sources plastic nets 010501 environmental sciences Management Monitoring Policy and Law 01 natural sciences Polyhydroxybutyrate chemistry.chemical_compound Polylactic acid biodegradability Ultimate tensile strength agriculture (polymers lcsh:Environmental sciences 0105 earth and related environmental sciences lcsh:GE1-350 Renewable Energy Sustainability and the Environment lcsh:Environmental effects of industries and plants 04 agricultural and veterinary sciences Building and Construction Polyethylene Biodegradation sustainability Pulp and paper industry Polyvinyl chloride lcsh:TD194-195 chemistry Polycaprolactone 040103 agronomy & agriculture 0401 agriculture forestry and fisheries High-density polyethylene pests |
| Zdroj: | Sustainability, Vol 12, Iss 3625, p 3625 (2020) |
| ISSN: | 2071-1050 |
| DOI: | 10.3390/su12093625 |
| Popis: | This review article contributes new knowledge relating to the sustainability of antihail, anti-insect, and windbreak plastic nets in agriculture. Based on the review, biobased plastic nets made from polyamino acids, polysaccharide derivatives (DS), polyhydroxybutyrate (PHB), polycaprolactone (PCL), polyhydroxylalkanoate (PHA), and polylactic acid (PLA) are shown to be highly biodegradable compared to conventional plastics such as high-density polyethylene (HDPE), polyethylene (PE), and polyvinyl chloride. The biodegradability of these materials is due to the use of natural precursors. However, nonbiodegradable plastics are the materials of choice in agricultural applications for the following reasons. Global commercial production of biobased plastics is low (~1%) due to the absence of facile and scalable production methods. Even though biobased materials are ecologically benign, they are limited in agricultural settings, given the low tensile strength and disruption of the activities of natural insect predators such as spiders. The enhancement of the material properties of biobased plastics involves a trade-off with sustainability. Chemical additives such as heavy metals and volatile compounds enhance the mechanical properties of biobased plastics but limit their sustainability. The current constraints on the production of biobased plastic nets can be resolved through electrospinning techniques that facilitate the development of plastic nets with controllable composition, porosity, and surface areas. |
| Databáze: | OpenAIRE |
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