Effect of phase morphology and interfacial strength on barrier properties of high density polyethylene/polyamide 6 membranes

Abstract

A barrier and resistance membrane consisting of alternating layers of high‐density polyethylene (HDPE) and polyamide 6 (PA6) was prepared by microlayered coextrusion. The influence of phase morphology, number of layers, and compatibilizer (CP) content of HDPE/PA6‐microlayered membranes on their gas barrier and water resistance properties were characterized using a scanning electron microscopy, gas in permeability, and water absorption tests. The results suggest that this special‐layered structure led to significant improvement of gas barrier and water resistance properties, compared with conventional membranes. In addition, the barrier and resistance properties of microlayered membranes were obviously enhanced with increased number of layers and CP content. An optimal number of layers and CP content were determined for the improved barrier and resistance properties. POLYM. ENG. SCI., 2013. © 2013 Society of Plastics Engineers

Comparative study on the deformation behavior, structural evolution, and properties of biaxially stretched high‐density polyethylene/carbon nanofiller (carbon nanotubes, graphene nanoplatelets, and carbon black) composites

“…The oxygen permeability coefficient ( ) was determined by monitoring the real‐time pressure changes in the lower chamber in 20 h, and the was calculated using Eq. . Two specimens were measured for each type.…”

Influence of different alkyl‐methylimidazolium tetrafluoroborate ionic liquids on the structure of pebax® films. Consequences on thermal, mechanical, and water sorption and diffusion properties

“…The control of polymer hydration properties is a key parameter for a wide range of applications, going from biocompatible materials to barrier materials, packaging, breathable materials, or gas separation membranes. Different ways allowing the control of the hydrophilic/hydrophobic balance of the materials through blending route, copolymer route, (nano)composite approach, or development of hybrid organic/inorganic materials have been investigated to obtain a better control of both functional and mechanical properties for these applications. Among them, the copolymer route appears as particularly interesting as it allows to easily design different block lengths and natures and therefore to adjust functional properties.…”

Enhanced fracture energy during deformation through the construction of an alternating multilayered structure for polyolefin blends

“…– and responsible for many of their interesting properties. It is thought to be able to provide many useful properties for different materials, such as excellent mechanical properties, dielectric properties, barrier properties, flame‐resistant materials, electromagnetic shielding materials and so on . Thus, much attention has been paid to the preparation of materials with a multilayered structure.…”