Thermo-mechanical response of rigid plastic laminates for greenhouse covering

Fuina, Silvana; Marano, Giuseppe Carlo; Puglisi, Giuseppe; Tommasi, Domenico De; Scarascia-Mugnozza, Giacomo

doi:10.4081/jae.2016.549

Cited by 8 publications

(6 citation statements)

References 12 publications

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“…It has three layers. The first is a flexible and highly transparent PET layer [42]. This insulating substrate layer is approximately 1 micron thick.…”

Section: The Domain Setupmentioning

confidence: 99%

A Self-Color-Changing Film with Periodic Nanostructure for Anti-Counterfeit Application

Sripradit

Theeradejvanichkul

2022

Applied Sciences

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A self-color-changing film aimed at enhanced security and anti-counterfeit packaging is presented. Its function is to change color automatically when flipped under visible light. It is low-cost, takes a few seconds to check by the naked eye, and does not need any special tools to evaluate. The design of the color-changing, anti-counterfeiting film is based on a frequency-selective surface (FSS). The film is designed with aluminum nanocubes. They are laid out as an array in a plane with equal distance from one another. This arrangement allows us to select certain wavelengths of light to pass through by the size of the cubes and the separation distance between them. The performance is evaluated by a finite element analysis (FEA) method. The results show that the intersection of transmittance and the reflectance curves cause the film to change its color automatically when flipped. We also propose a method to predict the color of the film based on the transmittance values. The accuracy of this method is verified by actual colors from experiments with an error of no more than 12.8%, analyzed by the CIE chromaticity diagram.

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“…It has three layers. The first is a flexible and highly transparent PET layer [42]. This insulating substrate layer is approximately 1 micron thick.…”

Section: The Domain Setupmentioning

confidence: 99%

A Self-Color-Changing Film with Periodic Nanostructure for Anti-Counterfeit Application

Sripradit

Theeradejvanichkul

2022

Applied Sciences

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“…Plastic materials with good durability can be obtained from the synthesis of interpenetrating polymer networks (IPNs) while incorporating luminescent nanostructures such as Fluoro-functionalized nanostructured silica (FSiO 2 ), silica (SiO 2 ), carbon black (CB), barium titanate (BaTiO 3 ), polyaniline, and cerium phosphate (CePO 4 ) [1] , [2] , [3] , [4] , [5] , [6] .…”

Section: Datamentioning

confidence: 99%

Experimental data in support of characterization of the CePO4 dispersion into transparent PMMA/PU IPNs by the sequential route

et al. 2018

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This article is focused on the complementary data referring to the article “Dispersion of upconverting nanostructures of CePO4 using rod and semi-spherical morphologies into transparent PMMA/PU IPNs by the sequential route”. It contains the XPS data of CePO4, photographs and DSC thermograms of transparent PMMA/PU IPNs as well as with CePO4 dispersed in different wt.%, Confocal laser scanning micrographs, transmission electron microscopy (TEM), optical images of surface, and visual inspection (photographs) before and after aging of hybrid materials.

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“…There are researches on technologies for crops in a protected environment that mainly concern the control of the microclimate, the covering materials (Fuina et al 2016) and the structures (Cepeda et al 2013;Waaijenberg 2004;Castellano et al 2006;Castellano and Scarascia-Mugnozza, 1999).…”

Section: Introductionmentioning

confidence: 99%

Innovative Tensile Structures for Protected Crop Facilities

Fuina

Scarascia-Mugnozza

Castellano

2020

Lecture Notes in Civil Engineering

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Greenhouse structures are complex buildings that must meet different needs, such as the microclimate control inside the greenhouse, the strength of structural elements, as well as the radiometric and mechanical features of roofing materials. The covering system must allow the transmission of solar radiation for crop needs and guarantee resistance performances in relation to external actions, such as wind and snow loads. Starting from the main characteristics of agricultural commercial greenhouses and tensile structures, the proposal concerns with an innovative tensile supporting structure designed for the covering of protected crop facilities. The innovative tensile structural configuration was first studied by means of the selection of the construction materials and the cross sections of the structural components and afterward calculated using the structural analysis software SOFISTIK. The load analysis on the structure was carried out in accordance with the European standards UNI-EN 13031-1: 2004 and the Italian Technical Construction Code of 2018 related to the Eurocodes. The main results concern the comparison with the current structural types of commercial greenhouses: analysis of the steel weight of the structure and improvement of the structural response to external actions of the innovative tensile structure.

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Thermo-mechanical response of rigid plastic laminates for greenhouse covering

Cited by 8 publications

References 12 publications

A Self-Color-Changing Film with Periodic Nanostructure for Anti-Counterfeit Application

A Self-Color-Changing Film with Periodic Nanostructure for Anti-Counterfeit Application

Experimental data in support of characterization of the CePO4 dispersion into transparent PMMA/PU IPNs by the sequential route

Innovative Tensile Structures for Protected Crop Facilities

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