Recyclability of Carbon Nanomaterials-Based Conductive Polymer Composites

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Language: Английский

Preparation and characterization of nanocomposites based on natural rubber/chlorobutyl rubber/graphene nanoparticle: Effect of feeding sequences, mixer type and nanoparticle concentration

Polymer Composites, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 11, 2024

Abstract Blends of natural rubber (NR)/chlorobutyl (CIIR) (50/50), along with their nanocomposites containing varying amounts graphene nanoparticles (GNPs) and without silane, were prepared using different feeding sequences mixers. The results indicated that when GNP was first mixed NR before adding CIIR, the highest content found in NR; oxygen permeability diffusion coefficient decreased significantly by 37% 55%, respectively. Conversely, initially added to it distributed both rubbers at interface, enhancing phase interaction achieving a finer morphology. This sample exhibited greatest improvement mechanical properties due specific localization increased crosslink density. Using an internal mixer instead two‐roll mill improved dispersion, reduced curing time, enhanced properties. Although presence silane barrier Oxygen up 36% 3 phr silane. research proves mixing order type equipment are crucial determining final performance composites, as they influence dispersion fillers. Highlights NR/CIIR/GNP methods evaluated. Adding NR/GNP CIIR led more lower permeability. By CIIR/GNP NR, placed modulus improved. Mixing compared mill. Silane nanocomposite.

Language: Английский

Study of mechanical and rheogical properties of HDPE/iPP cross-linking polymer blends

STUDIES IN ENGINEERING AND EXACT SCIENCES, Journal Year: 2024, Volume and Issue: 5(2), P. e10275 - e10275

Published: Nov. 7, 2024

The rapidly developing subject of polymer mix design presents prospects for the creation materials with precisely customised qualities. It's crucial to comprehend morphology that results from blending immiscible polymers obtaining required mechanical This study explores complex interactions between structure and characteristics in both cross-linked unmodified blends HDPE iPP. Our provides important new information by combining testing rheological evaluations. It is observed are have a significantly higher viscosity, which suggests establishment three-dimensional network improved stability. Furthermore, exhibits enhanced behaviour after crosslinking. After crosslinking, melt flow index decreases, indicating increased resistance deformation because more interchain links formed. Higher PP concentration greater flexibility ductility, but cross-linking causes rigidity. On other hand, improves reducing rigidity mixes lower iPP concentration. Additionally, combination crosslinking agents significant improvement strength, reinforces structural integrity. Crosslinking also impact resistance, making appropriate uses requiring strong performance demanding circumstances.

Language: Английский