Mechanical Properties of Low Density Polyethylene

Jordan, Jennifer L.; Casem, Daniel; Bradley, J.; Dwivedi, Ajmer K.; Brown, Eric N.; Jordan, Christopher W.

doi:10.1007/s40870-016-0076-0

Cited by 98 publications

(66 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Different examples can be found in literature on the effect of sub-ambient temperature upon the mechanical and barrier response of conventional polyolefin-based systems [4][5][6][7], since, currently, these are the most employed materials for low temperature packaging applications.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Suitability of Poly(Lactide)/Poly(Butylene-Adipate-co-Terephthalate) Blown Films for Chilled and Frozen Food Packaging Applications

et al. 2020

View full text Add to dashboard Cite

The use of biopolymers can reduce the environmental impact generated by plastic materials. Among biopolymers, blends made of poly(lactide) (PLA) and poly(butylene-adipate-co-terephthalate) (PBAT) prove to have adequate performances for food packaging applications. Therefore, the present work deals with the production and the characterization of blown films based on PLA and PBAT blends in a wide range of compositions, in order to evaluate their suitability as chilled and frozen food packaging materials, thus extending their range of applications. The blends were fully characterized: they showed the typical two-phase structure, with a morphology varying from fibrillar to globular in accordance with their viscosity ratio. The increase of PBAT content in the blends led to a decrease of the barrier properties to oxygen and water vapor, and to an increase of the toughness of the films. The mechanical properties of the most ductile blends were also evaluated at 4 °C and −25 °C. The decrease in temperature caused an increase of the stiffness and a decrease of the ductility of the films to a different extent, depending upon the blend composition. The blend with 40% of PLA revealed to be a good candidate for chilled food packaging applications, while the blend with a PLA content of 20% revealed to be the best composition as frozen food packaging material.

show abstract

Section: Introductionmentioning

confidence: 99%

Evaluation of the Suitability of Poly(Lactide)/Poly(Butylene-Adipate-co-Terephthalate) Blown Films for Chilled and Frozen Food Packaging Applications

et al. 2020

View full text Add to dashboard Cite

show abstract

“…LDPE appears in plastic waste streams in the form of flexible bags and wraps for groceries, squeezable bottles, water sachets, shrink wraps and stretch films. Coupled with the desired properties, LDPE has a density of 0.910 -0.925 g/cm 3 and about 25-50% crystallinity [14]. Recycling of plastic already occurs on a wide scale and with different techniques.…”

Section: Introductionmentioning

confidence: 99%

Computer aided modelling of low density polyethylene pyrolysis to produce synthetic fuels

Adeniyi¹,

Eletta²,

Ighalo³

2018

Nig. J. Tech.

View full text Add to dashboard Cite

The pyrolysis of waste low-density polyethylene (LDPE) is an excellent method of converting waste materials into useful products. Aspen HYSYS 2006 was used to develop a computational steady-state model to simulate the pyrolysis of LDPE. The Peng-Robinson fluid package was used for the simulation. A continuous stirred tank reactor with an Arrhenius kinetic expression was used to predict reaction extent and product yield. At a pyrolysis temperature of 450 0 C and atmospheric pressure, 92.88% liquid yield was obtained. From the given feedstock, the char obtained was composed of only elemental carbon. The synthesis gas was composed mainly Hydrogen and C1-C4 hydrocarbons with traces of n-C5 and n-C6. The Pyrolysis oil was composed of higher hydrocarbon fractions (C8-C24). The conversiontemperature relationships from the simulation are in good agreement with experimental results. This proved that pyrolysis of waste LDPE can give an excellent yield of liquid product and is a viable recycling technique.

show abstract

“…This has been chosen as the subject material because of its use in previous works and also due to its easy processability and fabrication. The various material and geometric parameters used in the simulation are shown in Table 1 [20].…”

Section: Resultsmentioning

confidence: 99%

Payload Capabilities and Operational Limits of Eversion Robots

Godaba

Putzu

Abrar

et al. 2019

Towards Autonomous Robotic Systems

View full text Add to dashboard Cite

Recent progress in soft robotics has seen new types of actuation mechanisms based on apical extension which allows robots to grow to unprecedented lengths. Eversion robots are a type of robots based on the principle of apical extension offering excellent maneuverability and ease of control allowing users to conduct tasks from a distance. Mechanical modelling of these robotic structures is very important for understanding their operational capabilities. In this paper, we model the eversion robot as a thin-walled cylindrical beam inflated with air pressure, using Timoshenko beam theory considering rotational and shear effects. We examine the various failure modes of the eversion robots such as yielding, buckling instability and lateral collapse, and study the payloads and operational limits of these robots in axial and lateral loading conditions. Surface maps showing the operational boundaries for different combinations of the geometrical parameters are presented. This work provides insights into the design of eversion robots and can pave the way towards eversion robots with high payload capabilities that can act from long distances.

show abstract

Mechanical Properties of Low Density Polyethylene

Cited by 98 publications

References 26 publications

Evaluation of the Suitability of Poly(Lactide)/Poly(Butylene-Adipate-co-Terephthalate) Blown Films for Chilled and Frozen Food Packaging Applications

Evaluation of the Suitability of Poly(Lactide)/Poly(Butylene-Adipate-co-Terephthalate) Blown Films for Chilled and Frozen Food Packaging Applications

Computer aided modelling of low density polyethylene pyrolysis to produce synthetic fuels

Payload Capabilities and Operational Limits of Eversion Robots

Contact Info

Product

Resources

About