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Drop simulation analysis and experimental verification of a certain packaging box
Through theoretical analysis and simulation of the packaging box under drop conditions, stress cloud diagrams and stress-time history curves were obtained during edge and corner drop impacts. The results indicate that the maximum stress experienced by the packaging box is below the material’s yield limit. Drop tests confirmed that the box structure remained intact with no damage or deformation, and the experimental data aligned well with simulation results. The simulation analysis is validated as reasonable, demonstrating that the packaging box design meets the required specifications.
Journal Article
Commercial Blend for Sustainable Future—Study on Degradation and Electrostatic Properties
Interesting alternatives to expensive biodegradable polymers are their composites with natural fillers. The addition of biochar to a blend of poly(lactic acid) (PLA) and poly(3-hydroxybutyrate-co-4-hydroxybutyrate) was studied, and the resulting materials were evaluated for their properties and changes during degradation. Introducing biochar as a filler brought a noticeable improvement in electrostatic properties. Surface resistivity decreased from 3.80 × 10[sup.12] for the sample without biochar to 1.32 × 10[sup.12] for the sample with 30% filler content. Degradation tests revealed distinct differences in the degradation profile for composites due to the presence of filler. Composites with a lower biochar content displayed curling crack edges during hydrolytic degradation, and when the filler content reached 20 wt%, PLA loss accelerated. This study suggests that biochar-based composites have potential to be used as sustainable materials with improved properties.
Journal Article
Innovations in the food packaging market: active packaging
The requirements towards packaging and articles intended to come into contact with food are systematically growing. Due to the growing consumer interest in consumption of fresh products with extended shelf life and controlled quality, manufacturers have to provide modern and safe packaging. It is a challenge for the food packaging industry and also acts as a driving force for the development of new and improved concepts of technology packaging. It is in order to meet these needs that active packaging can be applied. This article presents a new generation of packaging, which allows to maintain and even improve the quality of the packaged product, which is an essential advantage particularly in the food industry. It is to this end that the role and the application of active packaging were discussed. Among the solutions belonging to the active packaging, there are oxygen and moisture scavengers, ethylene regulators, and antimicrobial packaging. Active packaging is an excellent solution for a wide range of applications in the food industry. The most important advantage resulting from their use is reduction in loss of food products due to extension of their shelf life. Active systems are the future direction for development of food packaging and their commercial success should be expected in the coming years. It will undoubtedly result from constantly improved technologies of their production and the knowledge about mechanisms of their functioning and the effectiveness of their operation in ensuring food safety accumulated by both producers and consumers over time.
Journal Article