Showing papers in "Journal of Plastic Film and Sheeting in 2017"
TL;DR: Chitosan, the second most abundant natural fiber after cellulose, is a partially deacetylated polymer of N-acetyl-d-glucosamine as discussed by the authors.
Abstract: Chitosan, the second most abundant natural fiber after cellulose, is a partially deacetylated polymer of N-acetyl-d-glucosamine. Chitosan is nontoxic, biodegradable, and biocompatible. It also has ...
36 citations
TL;DR: In this article, the authors studied the roll-coating process of an incompressible viscoelastic fluid, where the roll and the web have equal velocities.
Abstract: This paper studies the roll-coating process of an incompressible viscoelastic fluid, where the roll and the web have equal velocities. The lubrication approximation theory is used to simplify the e...
23 citations
TL;DR: In this article, a theoretical analysis of calendering of Ellis fluid based on lubrication approximation is presented, where the equations governing the flow are non-dimensional and solved to get closed form expressions.
Abstract: We present a theoretical analysis of calendering of Ellis fluid based on lubrication approximation. The equations governing the flow are nondimensionalized and solved to get closed form expressions...
20 citations
TL;DR: In this article, the Journal of Plastic Film and Sheeting (JFLSH) has published a review of the state-of-the-art work in the field of plastic film and sheeting.
Abstract: Copyright: 2017. SAGE Publications. Due to copyright restrictions, only the abstract is available. For access to the full text item, please consult the publisher's website. The definitive version of the work is published in Journal of Plastic Film and Sheeting. Vol 33 (3) : 309-336. https://doi.org/10.1177/8756087916682553
19 citations
TL;DR: In this article, composite films based on polylactic acid and talc were prepared by extrusion film blowing to determine the effect of annealing temperature, anealing time, and a talc content on the mo...
Abstract: In this study, composite films based on polylactic acid and talc were prepared by extrusion film blowing to determine the effect of annealing temperature, annealing time, and talc content on the mo...
18 citations
TL;DR: In this paper, the exact solution for calendering a third-order fluid under lubrication approximation is presented, and the solution obtained is valid for all values of the thirdorder fluid parameter.
Abstract: This paper presents the exact solution for calendering a third-order fluid under lubrication approximation. The solution obtained is valid for all values of the third-order fluid parameter. This ex...
16 citations
TL;DR: In this paper, the process dynamics of single-screw extrusion on mixtures of polypropylene (PP) and recycled PP were studied using a statistical, design of experiments (DoE) approach.
Abstract: The process dynamics of single-screw extrusion on mixtures of polypropylene (PP) and recycled PP were studied using a statistical, design of experiments (DoE) approach. For a conventional screw des...
16 citations
TL;DR: In this article, the effect of the individual viscoelastic relaxation modes of a polymer melt on its behavior in polymer melt extrusion film casting process is investigated and compared with the predicted results.
Abstract: This article is concerned with the effect of the individual viscoelastic relaxation modes of a polymer melt on its behavior in polymer melt extrusion film casting process. We compare the predicted ...
16 citations
TL;DR: In this article, polystyrene microspheres (PSMS) and PSMS-based polymer nanocomposites have been prepared by incorporating MWCNT into PSMS matrix.
Abstract: In this work, polystyrene microspheres (PSMS) and PSMS-based polymer nanocomposites have been prepared. PSMS were first synthesized by dispersion polymerization of styrene monomer. The microsphere-coated-multi-walled carbon nanotube (PSMS/MWCNT) nanocomposite was prepared by incorporating MWCNT into PSMS matrix. Aniline monomer was then introduced by means of in situ oxidative polymerization (PANI) route to PSMS, MWCNT, and PSMS/MWCNT. Fourier transform infrared spectroscopy depicted the composite formation of PANI and MWCNT with PSMS matrix. PANI polymer was successfully polymerized in PSMS matrix and on carbon nanotube walls. According to scanning electron microscopy, all nanocomposites exhibited core-shell morphology. Glass transition temperature (Tg) of PSMS/PANI, PANI/MWCNT, and PSMS/PANI/MWCNT were found as 245℃, 287℃, and 289℃, while maximum decomposition temperature (Tmax) was 387℃, 575℃, and 580℃, respectively. Tetrahydrofuran was shown to be a suitable solvent for dispersing the nanocomposite. T...
12 citations
TL;DR: In this paper, the antimicrobial activity of films made of poly(l-lactic acid)/poly (l- lactic acid) grafted maleic anhydride(copolymer)/epigallocatechin gallate(EGCG) blend was determined.
Abstract: The antimicrobial activity of films made of poly(l-lactic acid)/poly(l-lactic acid) grafted maleic anhydride(copolymer)/epigallocatechin gallate(EGCG) blend was determined. The effect of epigallocatechin gallate incorporation (0.03, 0.5, 5, and 10 wt%) as a natural antibacterial was determined by direct contact, solid and liquid culture media. The film antimicrobial activity was evaluated against two bacteria (gram-negative: Pseudomonas spp.; gram-positive: Staphylococcus aureus). The copolymer was prepared and characterized by Fourier transform infrared analysis and Molau test. Furthermore, the degree of grafting was determined. The epigallocatechin gallate migration profile through the films were determined and the minimum epigallocatechin gallate concentration in films required to show antibacterial activity was evaluated. The results showed that only the films with 10 wt% epigallocatechin gallate significantly affected (p < 0.05) the cell morphology and inhibited the growth of S. aureus (56% with copo...
11 citations
TL;DR: In this article, the influence of molecular architecture on interfacial self-adhesion above polyethylene film melt temperature was examined and the investigated molecular structures include molecular structures including molecular wei...
Abstract: The influence of molecular architecture on interfacial self-adhesion above polyethylene film melt temperature was examined in this study. The investigated molecular structures include molecular wei...
TL;DR: The results suggest that the anticipated barrier property improvement may not be realized if the flake orientations exhibit a significant scatter around the desired direction.
Abstract: This direct numerical study investigated the effect of orientational randomness on the barrier properties of flake-filled composites. Over 2500 simulations have been conducted in two-dimensional, doubly periodic unit cells, each containing 500 individual flake cross-sections which, besides being spatially random, assume random orientations within an interval [−ɛ, +ɛ] (0≤ɛ≤π/2). We consider long flake systems (aspect ratio α = 50, 100, and 1000) from the dilute (αϕ = 0.01) to the concentrated (αϕ = 15) regime, where (ϕ) is the flake volume fraction. At each (ɛ) and (αϕ), several realizations are generated. At each of those, the steady-state diffusion equation is solved, the mass flux across a boundary normal to the diffusion direction is computed and an effective diffusivity Deff calculated from Fick’s Law. The computational results for Deff are analyzed and the effects of (ɛ) and (αϕ) are quantified. These differ in the dilute (αϕ < 1) and in the concentrated regimes (1 < αϕ < 15). In the dilute regime, t...
TL;DR: The antibacterial activity of low-density polyethylene/adhesive resin (10%)/epigallocatechin gallate (0.03, 0.5, 5, and 10%) extrusion cast films were evaluated against Staphylococcus aureus (gram...
Abstract: The antibacterial activity of low-density polyethylene/adhesive resin (10%)/epigallocatechin gallate (0.03, 0.5, 5, and 10%) extrusion cast films were evaluated against Staphylococcus aureus (gram ...
TL;DR: In this article, the basic properties and the damp heat aging behavior of a 400µm thick titanium dioxide filled polyoxymethylene film for potential use as backshe...
Abstract: This article describes and evaluates the basic properties and the damp heat (85%RH, 85℃) aging behaviour of a 400 µm thick titanium dioxide filled polyoxymethylene film for potential use as backshe...
TL;DR: In this article, a new diacid monomer containing amide, imide, and sulfone functional groups was successfully used to synthesize a new poly(ether-amide) for membrane-based gas separation applications.
Abstract: In this study, a new diacid monomer containing amide, imide, and sulfone functional groups was successfully used to synthesize a new poly(ether-amide) for membrane-based gas separation applications...
TL;DR: In this article, the packaging of a lithium polymer secondary battery involves a wrapping process of an aluminum/polymer laminate film that uses heat sealing, and the sealing time and sealing block width are important.
Abstract: The packaging of a lithium polymer secondary battery involves a wrapping process of an aluminum/polymer laminate film that uses heat sealing. Heat sealing time and sealing block width are important...
TL;DR: In this paper, polypropylene/multi-wall carbon nanotube composites with 1, 9, 81, and 729 layers were prepared with a novel microlayer extrusion technology.
Abstract: Polypropylene/multiwall carbon nanotube composites with 1, 9, 81, and 729 layers were prepared with a novel microlayer extrusion technology. The influences of multiwall carbon nanotube dispersion a...
TL;DR: In this article, the authors studied the effect of temperature and heating rate on the wrinkling behavior of a commercial black-out film laminated onto a metal substrate and found that it was possible to exceed the threshold temperature stated above without wrinkling when the heating rate was sufficiently low (closer to 1℃/min, though less than 50℀/min was often sufficient depending on the final temperature).
Abstract: This paper focuses on wrinkle development in decorative film laminates during heating operations with the goal to understand their driving factors and develop strategies to overcome such defects. The study looked at temperature and heating rate effects on the wrinkling behavior of a commercial black-out film laminated onto a metal substrate. The 135℃ threshold temperature identified for our film under which no wrinkles formed, related to the stiffness of its different construction layers. Heating rate was also noted by this study to be an important parameter in wrinkling; values between 1℃ and 350℃/min were tested. It was possible to exceed the threshold temperature stated above without wrinkling when the heating rate was sufficiently low (closer to 1℃/min, though less than 50℃/min was often sufficient depending on the final temperature). The heating rate effect is believed to be related to the time-dependent viscoelastic response of the compliant layer in relation to building thermal stresses.