BIOECONOMY FOR SUSTAINABLE DEVELOPMENT AND WELL-BEING

The industrial revolution and economic activity have led humanity to unprecedented success in the production and development of technology, but also to a super-consumer society that has managed to consume more of the earth's resources than it is possible to reproduce on its own. We, humans, have changed the earth, the climate, and destroyed species faster than any other species. Bioeconomy is perceived as the innovative answer to the needed fundamental transformation of the production systems to overcome the present lock-in situation. In the recent years the European Union has given unappealable support to greening the economy across the Community. Policies, strategies, financial mechanisms are introducing the green practices and business models in key sectors and economies. A new era of economic revolution follows, in which Bulgaria also needs to take its role. The present paper tackles the emerging challenges and progress in moving towards the sustainability, which requires a fundamental shift in industry, education and science, institutions, and community

Create a new type of meat pate for preschool and school-age children

The article is devoted to the study of meat-added products with functional properties for children of pre-school and school age. Studies were carried out taking into account the combination of the ingredient composition to create quality meat products. The production technology has been developed, the product formulation has been developed, microbiological indicators, qualitative indicators have been determined, and production testing has been carried out. The developed pates are enriched with natural biological corrector (NBC) of domestic production, NBC enrich them with micronutrients necessary for directed action: pate enriched with calcium with the addition of poultry meat. According to microbiological studies in preserves «Poultry meat pate»,quantity of mesophilic aerobic and facultative anaerobic microorganisms (QMAFAnM) does not exceed the confidence interval, is 6,6 x 102 CFU/g

Mechanical and tribological properties of scrap rubber reinforced with Al \u3c inf\u3e 2 O \u3c inf\u3e 3 fiber, aluminium and TiO \u3c inf\u3e 2

© The Society for Experimental Mechanics, Inc. 2017. Scrap rubber/Epoxy composites reinforced with Aluminium, Alumina Fibre and TiO2 particles were prepared and mechanical and tribological properties of these composites were investigated. Basically, these composites are aimed to use in many engineering applications. A detail microstructure and matrix/reinforcement interface analyze was made by means of Scanning Electron Microscope (SEM) The wear performance of hard particles reinforced composites were evaluated in view of micromechanical properties. Quasi static and dynamic compression tests were carried out and damaged specimens were studied by SEM. Degradation behaviour of the structure for each composite was compared after exposing against UV. The hardness (short test) values of the composites were reviewed related to the reinforcement elements

Scrap rubber based composites reinforced with ceramic oxides and silica

The paper presents results of investigation on composition of some ceramic oxides used for scrap rubber-based composites. The paper reports results of investigation on the influence of boron, boron oxide (B2O3) and silica presence of Zr2O3 in the composition. Silica is added as the agent controlling the composite transformation. The process of scrap rubber matrix reinforced with certain ceramic reinforcements during heating was examined by DSC/TG technique. Microstructure was evaluated by Scanning Electron Microscope (SEM). Mechanical and wear properties are also studied depending on the composition. The mechanical properties of the composite structure were found to significantly increase with increasing B2O3 and Zr2O3 contents

Mechanical and tribological properties of scrap rubber based composites reinforced with glass fiber, Al and TiO2

Scrap rubber/Epoxy composites reinforced with Aluminium, Glass Fibre (GF) and TiO2 particles were prepared and mechanical and tribological properties of these composites were investigated. Basically, these composites are aimed to use in automotive and aeronautics applications. A detail microstructure and matrix/reinforcement interface analyze was made by means of Scanning Electron Microscope (SEM) The wear performance of hard particles reinforced composites were evaluated. Quasi static and dynamic compression tests were carried out and damaged specimens were studied by SEM. The hardness (short test) values of the composites were reviewed related to the reinforcement elements, Glass Fibre-fiber and TiO2 added in the matrix

AGRO-ENERGY: GROWTH POTENTIAL OF THE GREEN INDUSTRY

Our present economy, which is strongly dependent on fossil raw materials, is gradually changing into an economy based mainly on renewable raw materials. The European Union has given a very strong political signal to kick-start a green economy all across Europe. The European climate strategy and the transition to a decarbonized economy indeed call for a deep transformation of the production, storage and consumption in the Community. This process either can be described as a transition, generally defined as the process of changing from one state or condition to another, or in a more restricted sense, a transition leading to an entirely new way of fulfilling societal needs. In this process, we are referring to the two sides of the humannature relation - the principle of ecological dependence, and the principle of ecological impact

AGRO-ENERGY: GROWTH POTENTIAL OF THE GREEN INDUSTRY

Our present economy, which is strongly dependent on fossil raw materials, is gradually changing into an economy based mainly on renewable raw materials. The European Union has given a very strong political signal to kick-start a green economy all across Europe. The European climate strategy and the transition to a decarbonized economy indeed call for a deep transformation of the production, storage and consumption in the Community. This process either can be described as a transition, generally defined as the process of changing from one state or condition to another, or in a more restricted sense, a transition leading to an entirely new way of fulfilling societal needs. In this process, we are referring to the two sides of the human-nature relation - the principle of ecological dependence, and the principle of ecological impact.</jats:p

Optimization and service life prediction of elastomeric based composites used in manufacturing engineering

Lifetime prediction of the polymer materials have been an active field of research in recent past. An understanding in the polymer degradation mechanisms and their stabilization has lead to creation of composite materials for advanced applications. It is important to know the service life deterioration kinetics of materials with good accuracy for designing critical applications. The present paper discusses comprehensive test results carried out in the frame of a basic research project. First of all, a detailed analysis is presented on the influence of accelerator-vulcanizing agent system on the mechanical properties and viscoelastic behaviour. As a first design parameter for the new compositions (for example: the mixture of Natural and Butadiene Rubbers (NR-BR) vulcanized at the temperatures of 140 °C and 160 °C) were evaluated and secondly the effect of reinforcements and their interactions with the matrix are discussed. Preliminary results on a study of nanoindentation characterisation to predict viscoelastic behaviour of the elastomeric based composite sheets is also presented. © The Society for Experimental Mechanics, Inc. 2014

Characteristics of elastomeric composites reinforced with carbon black and epoxy

© The Society for Experimental Mechanics, Inc. 2016. In different industrial applications of the elastomeric composites, optimization of processing as well as performance requirements through variation in the mixture composition is one of the basic tools. Thus, various components taking part in a particular formulation play an important role on the final properties. The main focus of this work is based on the effect of additional elements on the mechanical properties of elastomeric composites based on a mixture of natural (NR) and butadiene (BR) rubber. Influence of accelerator-vulcanizing agent system was studied. In addition part of the conventional filler (carbon black) was replaced by epoxy resin in order to investigate the possibility of achieving new properties of the composites. Mechanical, physical and viscoelastic properties were investigated by different experimental techniques (swelling, tensile test, microindentation, DMTA, etc.). Damage analysis of the studied composites was made by using Scanning Electron Microscopy