Hdpe
Mostrando 13-24 de 94 artigos, teses e dissertações.
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13. Role of Cured Epoxy and Block Copolymer Addition in Mechanical and Thermal Properties of Polyethylene
This work aims to investigate the role of epoxy addition in high density polyethylene (HDPE) matrix. The block copolymer polyethylene-b-poly (ethylene glycol) (PEG-co-PE) was used as a compatibilizer. The samples were obtained by melt mixing using a torque rheometer. Instrumental nanoindentation was used to determine Young's modulus and nanohardness, thermal
Mat. Res.. Publicado em: 10/07/2017
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14. Soldabilidad de Polietileno de Alta Densidad Usando Soldadura por Fricción-agitación con una Herramienta de Hombro no Rotacional
Abstract: In this work was studied the weldability of high density polyethylene (HDPE) using friction stir welding (FSW) process, and two kind of tools, denominated conventional, and non-conventional tool, which has a non-rotating shoulder. Evaluation was performed using combination of parameters of rotation speed (vW) and welding speed (vA), which were adju
Soldag. insp.. Publicado em: 2016-12
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15. Curaua fiber reinforced high-density polyethylene composites: effect of impact modifier and fiber loading
Abstract Short fibers are used in thermoplastic composites to increase their tensile and flexural resistance; however, it often decreases impact resistance. Composites with short vegetal fibers are not an exception to this behavior. The purpose of this work is to produce a vegetal fiber reinforced composite with improved tensile and impact resistance in rela
Polímeros. Publicado em: 07/06/2016
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16. Polyethylene-polyaniline Nanofiber Composites: Evaluation of Experimental Conditions of in situ Polymerization
The difficult processability of polyaniline (PAni) can be overcome by preparing composites with high density polyethylene (HDPE), resulting in a conducting material with improved mechanical properties. PAni nanofibers were synthesized in this research using a rapid mixing method, while HDPE/PAni composites were prepared by in situ polymerization using Cp2ZrC
Mat. Res.. Publicado em: 23/10/2015
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17. Oxygen Permeability Coefficient of High Density Polyethylene/Cu Nanofibers Nanocomposites below Percolation
AbstractThe main objective of this study was to relate the elastic modulus of a polymer nanocomposite to its permeability coefficient. The materials studied included high density polyethylene (HDPE) filled with copper nanofibers (Cu-nanofibers). Both of the experimental values of the elastic modulus and the gas permeability coefficient of the HDPE/Cu-nanofib
Mat. Res.. Publicado em: 2015-10
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18. Production and Properties of a New Wood Laminated Veneer/High-Density Polyethylene Composite Board
AbstractThe paper aimed at evaluating the feasibility and the properties of a new product which combines wood veneer and high-density polyethylene (HDPE) from post-consuming plastic bags. Three HDPE amounts were evaluated: 150g/m2, 250 g/m2 e 350 g/m2. The boards were manufactured using a single-opening hot-press under such conditions: 140ºC, for 20 minutes
Mat. Res.. Publicado em: 2015-10
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19. High density polyethylene and zirconium phosphate nanocomposites
Abstract Nanocomposite based on high density polyethylene (HDPE) and layered zirconium phosphate organically modified with octadecylamine (ZrPOct) was obtained through melt processing. The ZrPOct was synthesized by precipitation and modified by suspension and sonication procedures. The initial and maximum degradation temperatures (Tonset and Tmax) were incre
Polímeros. Publicado em: 2015-10
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20. Influence of lubricant oil residual fraction on recycled high density polyethylene properties and plastic packaging reverse logistics proposal
Abstract To recycle post-consumer HDPE contaminated with waste lubricating oils, companies include prior washing and drying in the process. This consumes large amounts of water and energy, generates significant effluent requiring treatment. This study assesses lubricating oil influence on HDPE properties to evaluate the feasibility of its direct mechanical r
Polímeros. Publicado em: 2015-10
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21. Blends of ground tire rubber devulcanized by microwaves/HDPE - Part B: influence of clay addition
AbstractThe main objective of this work is to study the influence of clay addition on dynamically revulcanized blends of Ground Tire Rubber (GTR)/High Density Polyethylene (HDPE). GTR was previously devulcanized in a system comprised of a conventional microwave oven adapted with a motorized stirring, with a fixed microwave power and at various exposure times
Polímeros. Publicado em: 2015-08
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22. Blends of ground tire rubber devulcanized by microwaves/HDPE - Part A: influence of devulcanization process
Abstract The main objective of this work is the study of the influence of microwaves devulcanization of the elastomeric phase on dynamically revulcanized blends based on Ground Tire Rubber (GTR)/High Density Polyethylene (HDPE). The devulcanization of the GTR was performed in a system comprised of a conventional microwave oven adapted with a
Polímeros. Publicado em: 2015-06
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23. On the Processing and Properties of Clay/Polymer Nanocomposites CPNC
AbstractAn experimental investigation followed by fundamental characterization and discussion on the effect of nanoclay filler on the mechanical and fracture properties of polymer matrix was carried out. The study was carried out on clay/polymer nanocomposite made of High Density polyethylene (HDPE M40060) produced by Saudi Arabian company SABIC and montimor
Lat. Am. j. solids struct.. Publicado em: 2015-04
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24. Silane Crosslinked Polyethylene from Different Commercial PE’s: Influence of Comonomer, Catalyst Type and Evaluation of HLPB as Crosslinking Coagent
In the present work, the synthetic route to obtain crosslinked polyethylene (PEX) was studied using vinyltrimethoxy silane (VTMS) as crosslink agent and commercial polyethylene (HDPE and LLDPE). Materials were processed with increasing amounts of VTMS (2.5, 5.0 and 7.5 wt.%). After insertion of silane onto polymer chain in solid state, samples were molded by
Mat. Res.. Publicado em: 2015-04