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Environmentally degradable polymeric materials (EDPM) in agricultural applications - an overview

Chiellini E., Cinelli P., D'Antone S., Ilieva V. I.

Polimery

2002

T. 47, nr 7-8

538-544

Owing to their low production cost, good physical properties and lightweight, plastic objects have slowly substituted glass, paper and metals in several fields of application including agriculture. At the same time, the current huge global production of plastics (200 million tons/year) has generated an enormous environmental concerns, mainly related to the waste generation by plastic packaging, which are responsible for 35- 0% share of annual plastics consumption. Where recovery of lastics is not economically feasible, viable, controllable or attractive, plastics often remain as litter. This is the case in most of agricultural applications of polymeric materials. The market for biodegradable polymers is at this moment focusing on products in which biodegradability provides beneficial effects (e.g. waste-disposal, recycling) and a number of biodegradable materials are already being marketed or are close to market introduction and customer acceptance. This overview is meant to provide an outline on the history and recent developments in biodegradable polymeric materials applied in agricultural practices with particular reference to the mulching segment. Special attention has been devoted to material based on renewable resources or utilization of waste products from the agroindustrial sector, thus suggesting cost- effective and environmentally sound solutions to specific social needs.

Na tle ogólnego omówienia problemu zagospodarowania odpadów tworzywowych przedstawiono znaczenie stosowania EDPM, zwłaszcza w rolnictwie (tabele 1 i 5). Szczególnie dużo miejsca poświęcono przy tym możliwościom wykorzystywania folii EDPM w ściółkach do przykrywania gleby (tabele 3 i 4).

Development and application of environmentally degradable plastics in Eastern Asian countries

Kim Y. H., Kim S. H.

Polimery

2002

T. 47, nr 7-8

556-559

General demographic and economical situation in Eastern Asian countries has been characterized. For several of those countries (Japan, South Korea, Taiwan, Singapore, China) the present state of plastic wastes utilization and environmentally degradable plastics (EDP) production has been described.

Scharakteryzowano ogólną sytuację demograficzną i ekonomiczną w krajach wschodnio-azjatyckich (tabela 1). W odniesieniu do kilku spośród tych krajów (Japonii, Korei Płd., Tajwanu, Singapuru i Chin) omówiono obecny stan zagospodarowywania odpadów tworzywowych oraz produkcji tworzyw sztucznych ulegających degradacji pod wpływem środowiska naturalnego (EPD, tabele 2-4).