Reduction of the Environmental Impact of Plastic Films for Greenhouse Covering by Using Fluoropolymeric Materials

Stefani, L.; Zanón, Manuel Puigcerver; Modesti, Michele; Ugel, Elisabetta; Vox, Giuliano; Schettini, Evelia

doi:10.17660/actahortic.2008.801.9

Cited by 22 publications

(18 citation statements)

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“…Optimal aperture efficiency has been d in greenhouses with zero incident angles. Greenhouse covering materials with carbonve supply chains such as plastics increase greenhouse gases [27]-a factor that can be regulated h closed-loop recycling [7], mechanical and chemical recycling [28,29]. berglass greenhouse cladding materials pose challenges in the recycling process and have the ansmissivity.…”

Section: Type Of Materials τPar ρPar αPar τNir ρNir αNir Qmentioning

confidence: 99%

Environmental Sustainability of Greenhouse Covering Materials

Maraveas

2019

Sustainability

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The fundamental objective of the review article was to explore the ecological sustainability of greenhouse covering material based on the following themes; considerations for greenhouse materials, properties of polymers and glass, additives, fillers, stabilizers and reinforcements, performance, Ultraviolet (UV) transmittance, phase change materials (PCMs), and environmental sustainability. A comparison of various polymers (polyvinyl chloride (PVC), acrylic, D-polymer, Linear low-density polyethylene (LLDPE), polyolefins), and silica glasses illustrated that each type of greenhouse cladding material has its unique merits and limitations. The performance of silica glasses, PVC, polyolefins was influenced by weather, greenhouse design, plant under cultivation, percentage UV transmittance, incorporation of additives and stabilizers, reinforcements, and integration of photovoltaic panels into the greenhouse roof among other factors. Polymers can be customized to achieve 0%UV transmittance, slow-insecticide release, and anti-microbial properties. In contrast, glass materials are preferred based on suitable photosynthetically active radiation (PAR) transmittance and near-infrared (NIR) reflection and less risk of photo-oxidation. From an ecological perspective, polymers can be recycled via mechanical and chemical recycling, closed-loop cycling, and polymerization of bio-based feedstock. However, post-consumer plastic films do not possess the same optical and energy properties as virgin polymers. The combined benefits of different polymers suggest that these materials could be adopted on a large scale over the long-term.

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Section: Type Of Materials τPar ρPar αPar τNir ρNir αNir Qmentioning

confidence: 99%

Environmental Sustainability of Greenhouse Covering Materials

Maraveas

2019

Sustainability

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“…This has the benefit of creating a healthier environment internally; especially for plants as the UV light prevents mould and enhances plant growth (Stefani et al 2007). As a result, ETFE is seen as an ideal solution for botanical gardens, swimming pool and exhibition spaces.…”

Section: Benefits Of Etfe In Constructionmentioning

confidence: 99%

An Evaluation of Thermal and Lighting Performance Within an ETFE Structure

Martin

Masih

Lau

et al. 2016

Sustainable Ecological Engineering Design

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This paper reports on a study into the thermal and lighting environment of an enclosed ethylene tetrafluoroethylene (ETFE) foil-covered structure. This is based on the on-site monitoring over set periods of time in summer 2014 and winter 2015. ETFE foil is a relatively new highly-translucent construction material that has been used in some high profile projects around the world. In a unique development, this project looked at a new building product that makes use of ETFE film and tensioned it over aluminium frames to create a modular ETFE-covered panel that can look similar to and can be installed as a replacement for glazing. This opens up new markets for the use of ETFE film, such as agriculture and horticulture, and allows for possibilities such as urban and vertical farming or the retrofitting of existing commercial and residential greenhouses. A test structure was constructed from the ETFE-covered panels. This paper will report on the impacts of solar radiation on the thermal environment as well as the relative humidity within this enclosure so that a more holistic understanding of the thermal comfort can be obtained. The second section will explore the internal daylighting environment including analysis of the daylight factor within the structure and luminance mapping to examine brightness and visual performance and its effect on the perception of space and objects within. The paper will conclude that the temperature within the enclosed ETFE structure can become too high during the summer months and may require heating when occupied during the winter months. The research also finds that the daylight levels can be too bright if the internal space were to be used regularly by occupants, although this may be beneficial for plants. In both cases, overheating and solar gain issues can be resolved through appropriate shading and ventilation.

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“…The technical aspects about the performance of this material during its working life are usually poorly considered during the design and production phase of these materials [81,93] . Therefore, plastic materials show a limited life, even if they are produced with considerable quantities of appropriate additives, included into the formulation with the aim to prolong their useful lifetime.…”

Section: The Sustainable Exploitation Of Agricultural Plastic Filmmentioning

confidence: 99%

Innovative Material and Improved Technical Design for a Sustainable Exploitation of Agricultural Plastic Film

Picuno

2014

Polymer-Plastics Technology and Engineering

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The use of plastic material in agriculture has been growing during the last decades thanks to the benefits it provides in agricultural production. The durability of plastic films is related to the meteorological and environmental conditions, as well as to the consequence of stress they are subjected to during their operational life. An improvement in the technical design of the agricultural plastic film is connected with a closer link between its chemical formulation and the engineering performance. The present article presents a general review about innovative material and new techniques for mechanical recycling of agricultural plastic film

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Reduction of the Environmental Impact of Plastic Films for Greenhouse Covering by Using Fluoropolymeric Materials

Cited by 22 publications

References 0 publications

Environmental Sustainability of Greenhouse Covering Materials

Environmental Sustainability of Greenhouse Covering Materials

An Evaluation of Thermal and Lighting Performance Within an ETFE Structure

Innovative Material and Improved Technical Design for a Sustainable Exploitation of Agricultural Plastic Film

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