Polymers for Packaging and Containers in Food Industry

Sukhareva, L.A.; Yakovlev, V. S.; Legonkova, O.A.

doi:10.1163/ej.9789004161436.i-526

Cited by 7 publications

(4 citation statements)

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“…The averaged complex and storage moduli was over 960 MPa with a standard deviation [18]. The influence of the solvent on polymer films' mechanical properties has been reported for such thermoplastics as PLA [34] and polystyrene [35]; therefore, this may also be the case for PIM-1. It is also necessary to consider the influence of polymer treatment on the results, as polymers are susceptible to processing history and every step, from polymer preparation in granular form to diluting it in different solvents, casting and drying in different conditions, may be significant to a final outcome.…”

Section: Dynamical Mechanical Thermal Analysismentioning

confidence: 76%

Mechanical characterisation of polymer of intrinsic microporosity PIM-1 for hydrogen storage applications

et al. 2016

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Polymers of intrinsic microporosity (PIMs) are currently attracting interest due to their unusual combination of high surface areas and capability to be processed into free-standing films. However, there has been little published work with regards to their physical and mechanical properties. In this paper, detailed characterisation of PIM-1 was performed by considering its chemical, gas adsorption and mechanical properties. The polymer was cast into films, and characterised in terms of their hydrogen adsorption at -196°C up to much higher pressures (17 MPa) than previously reported (2 MPa), demonstrating the maximum excess adsorbed capacity of the material and its uptake behaviour in higher pressure regimes. The measured tensile strength of the polymer film was 31 MPa with a Young's modulus of 1.26 GPa, whereas the average storage modulus exceeded 960 MPa. The failure strain of the material was 4.4%. It was found that the film is thermally stable at low temperatures, down to -150°C, and decomposition of the material occurs at 350°C. These results suggest that PIM-1 has sufficient elasticity to withstand the elastic deformations occurring within state-of-the-art high-pressure hydrogen storage tanks and sufficient thermal stability to be applied at the range of temperatures necessary for gas storage applications.

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Section: Dynamical Mechanical Thermal Analysismentioning

confidence: 76%

Mechanical characterisation of polymer of intrinsic microporosity PIM-1 for hydrogen storage applications

et al. 2016

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“…Besides a polymer binder, plasticizers, fillers, dyes, pore formers, lubricating agents and other components are made of these components. The most popular way to obtain degradable blends is mixing natural and synthetic polymers or incorporating inorganic fillers [68][69][70]. Hydrogels can also be applied to produce efficient biopolymer packaging materials with desirable properties.…”

Section: Food Production and Packaging Industrymentioning

confidence: 99%

Hydrogels from Fundaments to Application

Kołodyńska¹,

Skiba²,

Górecka³

et al. 2016

Emerging Concepts in Analysis and Applications of Hydrogels

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Polymer superabsorbents commonly known as hydrogels are cross-linked highly molecular compounds able to absorb water from physicochemical fluids in the amounts from 10-fold to 100-fold larger than their dry mass. Numerous investigations have shown that they can help reduce irrigation water consumption, lower the death rate of plants, improve fertilizer retention in soil and increase plant growth rate. Besides water absorption and retention, the superabsorbent polymers have many advantages over conventional ones, such as a sustained supply of nutrition to plants for a longer time, thus increasing the phosphate fertilizer use efficiency and decreasing application frequency. The aim of this study is to investigate the influence of chemical conditions on hydrogels, kinetic and absorption behaviour towards metal ions in the presence of the chelating agent of a new generation. In this group, there are IDS, EDDS, GLDA, MGDA, etc. In the chapter, the research on the applicability of the effective absorption of metal complexes with a biodegradable complexing agent will be presented. The possibility of the preparation of slow-release fertilizers of controlled activity of a new generation in such system will also be discussed.

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“…PS is used for the manufacturing of toys, Petri dishes, test tubes, foam packaging, etc. It is relatively resistant to degradation compared to polylactide used in packaging but because of its low impact strength, for some applications, it needs to be toughened [2]. High impact polystyrenes are made by bulk polymerization of styrene in the presence of rubber particles, and these rubber particles toughen PS and enhance its impact strength.…”

Section: Introductionmentioning

confidence: 99%

Thermal stability, mechanical properties, impact strength, and uniaxial extensional rheology of reactive blends of PS and SBS polymers

2019

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Polystyrene (PS) has low impact strength and also shows poor strain hardening. In this work, poly(styrene-butadiene-styrene) triblock copolymer (SBS) was solution-and melt-blended with PS in the presence of a free-radical polymerization initiator, dicumyl peroxide (DCP), to enhance PS's thermo-mechanical properties, impact resistance, and strain hardening. The solution blended PS/SBS containing 0.1% DCP annealed at 180 °C showed strong strain hardening but the melt blended PS/SBS annealed at the same temperature and time showed poor strain hardening. The changing of the blending temperature, DCP concentration, and PS to SBS ratio had minimal effect on the strain hardening of PS. The tensile strength increased with an increase in the concentration of DCP up to 0.1%, beyond that the tensile strength started decreasing. The impact resistance considerably improved with an increase in the SBS loading in the PS matrix and the enhancement was more than double of the impact resistance shown by the neat PS.

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Polymers for Packaging and Containers in Food Industry

Cited by 7 publications

References 0 publications

Mechanical characterisation of polymer of intrinsic microporosity PIM-1 for hydrogen storage applications

Mechanical characterisation of polymer of intrinsic microporosity PIM-1 for hydrogen storage applications

Hydrogels from Fundaments to Application

Thermal stability, mechanical properties, impact strength, and uniaxial extensional rheology of reactive blends of PS and SBS polymers

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