Results 31 to 40 of about 9,253 (301)

Influence of the nature of pro-oxidants on the photooxidation of polyethylene blown films

open access: yesHeliyon, 2022
In an attempt to reduce the accumulation of polymeric waste in the environment, such as plastic bags, the use of pro-oxidants has been adopted in polyolefins, including polyethylene (PE), which is one of the most used polymers in film production.
João Augusto Osório Brandão   +3 more
doaj   +1 more source

Fun with Fonts: Algorithmic Typography [PDF]

open access: yes, 2014
Over the past decade, we have designed six typefaces based on mathematical theorems and open problems, specifically computational geometry. These typefaces expose the general public in a unique way to intriguing results and hard problems in hinged ...
E.D. Demaine   +5 more
core   +3 more sources

Influence of the Main Blown Film Extrusion Process Parameters on the Mechanical Properties of a High-Density Polyethylene Hexene Copolymer and Linear Low-Density Polyethylene Butene Copolymer Blend Used for Plastic Bags

open access: yesApplied Sciences, 2023
Polyethylene plastic bags manufactured via blown film extrusion have different quality specifications depending on their intended use. It is known that the mechanical properties of a film depend on the process parameters established, but little is known ...
Francisco Cuesta   +2 more
doaj   +1 more source

Fabrication of Polypropylene-g-(Diallylamino Triazine) Bifunctional Nonwovens with Antibacterial and Air Filtration Activities by Reactive Extrusion and Melt-Blown Technology

open access: yesJournal of Chemistry, 2019
Air filtration materials such as protective masks can protect humans from airborne pathogens; however, most of the existing protective filtration materials are aimed to intercept bacteria. Therefore, in this work, modified polypropylene- (PP-) based melt-
Chao Liu   +4 more
doaj   +1 more source

Cellulosic materials as natural fillers in starch-containing matrix-based films: a review [PDF]

open access: yes, 2016
In this work, the different cellulosic materials, namely cellulose and lignin are analyzed. In addition, the starch-containing matrices (isolated starch and flour) reinforced with cellulosic materials to be used in packaging applications are described ...
Alvarez, Vera Alejandra   +1 more
core   +1 more source

Influence of microcrystalline cellulose in thermoplastic starch/polyester blown films

open access: yesPolímeros
This work investigated the influence of microcrystalline cellulose (MCC) in thermoplastic starch/poly (butylene adipate-co-terephthalate) films produced by blown extrusion, using different MCC contents (4, 7 and 10 g.100 g-1).
Mônica Oliveira Reis   +4 more
doaj   +1 more source

Intumescent Flame Retardant Polyamide 11 Nanocomposites [PDF]

open access: yes, 2007
Current polyamide 11 and 12 are lacking in fire retardancy and high strength/high heat resistance characteristics for a plethora of fabricated parts that are desired and required for performance driven applications.
Jor, H.   +9 more
core   +1 more source

Physico-mechanical and structural characterization of polyethylene films and thermoplastic pinto bean starch [PDF]

open access: yesPolímeros
Starch is a biopolymer that is abundant in nature, low-cost, biodegradable, and can be transformed into a thermoplastic material. This work evaluates the films’ physicochemical, thermal, and mechanical properties based on low-density polyethylene (LDPE ...
Tomás Jesús Madera-Santana   +3 more
doaj   +1 more source

An experimental study on process-oriented scale-up/scale-down in blown film extrusion [PDF]

open access: yesAIP Conference Proceedings, 2020
The transfer of experimental test results from a small-scale system to a large-scale production system is known as scale-up or, conversely, scale-down. For film-producing companies, scale-up is a common procedure in the development process of new composite films or material recipes, where the main objective is to obtain equal film properties in the ...
Dohm, Christoph   +2 more
openaire   +3 more sources

Transport, mechanical and global migration data of multilayer copolyamide nanocomposite films with different layouts

open access: yesData in Brief, 2017
Transport, mechanical and global migration data concern multilayer food packaging films with different layouts, all incorporating a layered silicate/polyamide nanocomposite as oxygen barrier layer, and a low-density polyethylene (LDPE) as moisture ...
P. Scarfato   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy