Prediction and classification of the degradation state of plastic materials used in modern and contemporary art

inArt 2016 ◽  
2017 ◽  
pp. 391-401
Author(s):  
M. Manfredi ◽  
E. Barberis ◽  
E. Marengo
Keyword(s):  
Contemporary Art ◽  
Plastic Materials ◽  
Materials Used ◽  
Degradation State

scholarly journals Recent development in preparation of food packaging films using biopolymers

Food Research ◽  
2021 ◽  
Vol 5 (5) ◽  
pp. 12-22
Author(s):  
S. Suresh ◽  
C. Pushparaj ◽  
R. Subramani
Keyword(s):  
Shelf Life ◽  
Food Packaging ◽  
Edible Films ◽  
Packaging Films ◽  
Food Industries ◽  
Plastic Materials ◽  
Materials Used ◽  
Food Packaging Films

In the past decades, most materials used in the food packaging industry are nonbiodegradable materials that pose increased environmental concerns and sustainability issues. Hence, polymer-based biodegradable materials and edible films have been developed to increase the shelf life of food products. Especially, biopolymer-based nanomaterials are engineered with multifunctional characteristics because of their size, surface area, shelf life, thermal stability, and mechanical and barrier strength. These materials display enriched properties of biodegradability, antimicrobial activity, and biocompatibility and may have the possibility to replace plastic materials in future. Thus, this review offers a brief overview of the classification of biopolymers, key parameters that are important in food packaging films (including the role of plasticizers, cross-linkers, pH, temperature, and relative humidity), and recent applications of novel biopolymer nanocomposite materials used in the food industries.

scholarly journals Analysis of requirements for modern finishing materials in interior solutions for inpatient facility ward units

2021 ◽  
Vol 284 ◽  
pp. 05001
Author(s):  
Alevtina Balakina ◽  
Yury Lempl
Keyword(s):  
Practical Experience ◽  
Interior Decoration ◽  
Term Care ◽  
Normative Documents ◽  
Inpatient Facility ◽  
The Russian Federation ◽  
Materials Used ◽  
Capital Construction

This article is devoted to the detailed analysis of modern requirements for finishing materials, used in the interiors of inpatient facility ward units. The authors have studied a number of regulatory normative documents acting in the territory of the Russian Federation and analyzed the practical experience of interior decoration of ward units at the health care capital construction facilities. The authors highlight and describe the main requirements for the finishing materials for the inpatient facility ward units and point out the peculiarities of solutions in the interiors. A classification of modern finishing materials (with an indication of their technical characteristics) used in the decoration of interiors of long-term care units is made on the basis of the practical experience studied by the authors taking into account the functional purpose of the premises as well as the variants of visual design of interiors of inpatient facility ward units.

scholarly journals A study on selection of polymer based surface materials in interior design

2016 ◽  
Author(s):  
Zeynep Sadıklar ◽  
Filiz Tavşan
Keyword(s):  
Interior Design ◽  
Coating Materials ◽  
Interior Spaces ◽  
Plastic Materials ◽  
Surface Materials ◽  
Group A ◽  
Interior Designers ◽  
Materials Used ◽  
Material Information ◽  
Selection Of

People interact with surfaces in interior spaces, where a huge part of their life lasts. Many of these surfaces which surrounds the interior spaces are covering or coating materials in various textures and shapes. Materials used in interior surfaces are applied for various purposes. Protection, insulation or decoration can be considered as the main objective of these purposes.This study aims to research what kind of polymer based surface materials are used by interior designers and their reasons, frequency and area of use.  For this reason, the study is composed on a questionnaire. The questions are prepared by summarizing the polymer based material information obtained from the literature. The questionnaire participants are interior designers who are actively working in the field. With this group, a survey on selection of plastic materials has been made. Survey results are explained in the findings. The last chapter includes the conclusions and recommendations of the study.Keywords: Interior design, surface materials, plastics, polymers. 

scholarly journals Changes in the themes, aesthetics and functions of public images in Kyiv due to the influence of socio-cultural processes in the society of 1990-2010

2021 ◽  
pp. 183-194
Author(s):  
Mariia Ospishcheva-Pavlyshyn
Keyword(s):  
Contemporary Art ◽  
Visual Arts ◽  
Public Art ◽  
Visual Art ◽  
Rapid Development ◽  
Practical Aspect ◽  
Cultural Processes ◽  
The Impact ◽  
Theoretical Developments

On the back of the rapid development in public art in recent decades, and in particular graffiti and muralism, interest in them has grown significantly among cultural studies scholars, art critics, architects, sociologists, and urban planners. Numerous works that have appeared in the West and in Ukraine are devoted to various aspects of the visual public art existence. This theme continues to be one of the most relevant for contemporary visual art. This article complements the bunch of acquired knowledge with a detailed study of the impact of socio-cultural processes in society on the changes that took place in monumental painting, graffiti and muralism in Kyiv during 1990–2010, i.e. during the most important changes in politics and society in recent decades. The peculiarities of each historical stage of this influence are analysed and outlined in the study, and the theoretical analysis is displayed by the description of the most characteristic works. Most of them are researched in detail. In addition, the process of decline of monumental painting in the late 1980s and early 1990s is analysed, the factors of graffiti flourishing in the 1990s are identified and highlighted, and the origins of the rapid development of muralism after 2004 and especially after 2014 are explored. At each stage, changes in the themes, aesthetics and functions of public images are traced. The definitions, such as muralism and graffiti, are updated in this paper, taking into account changes in art and the latest achievements in its analysis. The manifestations of the national-patriotic themes in the contemporary art of muralism are considered in detail, the classification of art work on this subject is given, the corresponding examples are given. Such concepts as public art, synthesis of arts, monumental painting, graffiti, muralism are attentively aligned. The study of the nature of the socio-cultural processes and visual arts correlations is promising for further scientific and theoretical developments and the practical aspect for better understanding of the specific works

Adsorption and Desorption of Permethrin and Other Pesticides on Glass and Plastic Materials used in Bioassay Procedures

1981 ◽  
Vol 38 (2) ◽  
pp. 199-204 ◽  
Author(s):  
M. S. Sharom ◽  
K. R. Solomon
Keyword(s):  
General Relationship ◽  
Laboratory Studies ◽  
Adsorption And Desorption ◽  
Plastic Materials ◽  
Materials Used ◽  
Adsorption Desorption

Laboratory studies were conducted to determine the adsorption and desorption of permethrin on glass and several plastic materials that may be used for the construction of limnocorrals. The insecticide was substantially adsorbed on polyethylene, polyvinylchloride, glass, and Teflon. Adsorbed permethrin was not easily desorbed from polyethylene and polyvinylchloride by several water rinses. Increased adsorption of the insecticide was observed with increasing temperatures. A study on the adsorption of several herbicides of various water solubilities indicated that trifluralin was adsorbed to glass and that there was no general relationship between adsorption of the herbicide on polyvinylchloride and water solubility.Key words: permethrin, bioassay, adsorption, desorption

Drug Interactions with Medical Plastics

1983 ◽  
Vol 17 (10) ◽  
pp. 726-731 ◽  
Keyword(s):  
Drug Interactions ◽  
Contact Lenses ◽  
Surgical Practice ◽  
Preliminary Information ◽  
Warfarin Sodium ◽  
Plastic Materials ◽  
Hydralazine Hydrochloride ◽  
Clinically Significant ◽  
Materials Used ◽  
Sorption Phenomenon

Knowledge about drug interactions with plastic materials used in medical and surgical practice is at an elementary stage. Information that has appeared so far on the sorption of drugs to intravenous fluid containers, delivery sets, syringes, or other plastic apparatus has highlighted that polyvinyl chloride (PVC) is the major offender in this respect. Fortunately, in only a few cases is this sorption phenomenon and loss of drug from fluid likely to present a clinical hazard; in most instances, methods are available to prevent or overcome the problem, providing it is recognized. Current information suggests that the following drugs may exhibit clinically significant sorption to plastic materials: insulin, glyceryl trinitrate (nitroglycerin), diazepam, chlormethiazole, vitamin A acetate, isosorbide dinitrate, and a miscellaneous group of drugs including some phenothiazines, warfarin sodium, hydralazine hydrochloride, and thiopentone sodium. In addition, chloroquine binds strongly to glass and to cellulose acetate, but seemingly not to plastics. Brief details of these interactions and their management are given, together with some preliminary information and warnings on drug interactions (e.g., epinephrine, rifampicin) with hydrophilic contact lenses. The latter interactions may cause irreversible coloration of the lenses.

scholarly journals Re-Processing of Multilayer Plastic Materials as a Part of the Recycling Process: The Features of Processed Multilayer Materials

Polymers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2517
Author(s):  
Ville Lahtela ◽  
Shekhar Silwal ◽  
Timo Kärki
Keyword(s):  
Mechanical Characteristics ◽  
Wide Spectrum ◽  
Packaging Materials ◽  
Recycling Process ◽  
Melt Flow Rate ◽  
Plastic Packaging ◽  
Food Packages ◽  
Plastic Materials ◽  
Materials Used ◽  
Reuse Options

The weight of packaging materials will be increased with advanced innovations, such as multilayer plastic. The consequence of the advanced innovations is challenges in the following reuse activities. This study aimed to investigate the properties of multilayer plastic materials after recycling processes and will increase the awareness of plastic packaging material for reuse options. In this research, the materials were produced from food packages by crushing them and treating them with injection molding equipment. The implementation of materials in the processing was tested, and the structural and mechanical characteristics of the produced plastic materials was evaluated and discussed. Based on the completed tests, plastic materials used in food packages have the clearest differences in the material features, for instance, the melt flow rate and elongation rate in the tensile test that varied between 2.96–48.4 g/10min and 2–289%, respectively. The variation in the characterizations ranged widely between the material structures. The results indicate that solid plastic packaging materials have better mechanical features compared to foil materials. The structural analysis of materials showed that multilayer plastic includes a wide spectrum of different elements within materials, creating a challenge for future recycling.

scholarly journals Comparison of the Functional Barrier Properties of Chitosan Acetate Films with Conventionally Applied Polymers

Molecules ◽  
2020 ◽  
Vol 25 (15) ◽  
pp. 3491
Author(s):  
Andrea Walzl ◽  
Samir Kopacic ◽  
Wolfgang Bauer ◽  
Erich Leitner
Keyword(s):  
Polymer Films ◽  
Food Packaging ◽  
Barrier Properties ◽  
Good Alternative ◽  
Recycled Paper ◽  
Plastic Bags ◽  
Plastic Materials ◽  
Oil Hydrocarbons ◽  
Migration Experiment ◽  
Materials Used

The current demand to cut back on the use of plastic materials has brought a major boost to the search for bio-based alternatives. Not only are plastic bags and primary food packaging under scrutiny here, but also those materials used as functional barriers to reduce, for example, the migration of mineral oil hydrocarbons (MOH) from recycled paper and board packaging. Most of the barriers now in use are synthetic, often have only moderate barrier functionalities and in addition reduce the environmentally-friendly character of cellulose-based materials. Against this background, bio-based polymers have been evaluated in terms of their functional barrier properties. Chitosan was found to be among the best performers in these materials. In this study, the behavior of a lab-made chitosan acetate film was compared with conventionally produced polymer films. The two-sided migration experiment described recently was used to determine the barrier properties of the tested materials. This not only allowed to test the intrinsic migration of the films and the permeation through them, but also to simulate real packaging situations by using a recycled paper as donor for MOH. The migrated fractions were determined using gas-chromatography-based techniques. While the conventionally produced polymer films showed only moderate barrier function, excellent results were seen for the biopolymer. It reduced the migration from the recycled paper to not detectable, singling it out as a good alternative to conventional materials.

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