Polymer Filler Interaction
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Rheological properties of low-density polyethylene filled with hydrophobic Co(Ni)-Al layered double hydroxides
Abstract Cobalt/aluminum and nickel/aluminum layered double hydroxide (LDH - M+2:Al molar ratio of 3:1) were intercalated with dodecylsulphate (DDS), laurate (LAU), stearate (STE) and palmitate (PAL) and used as filler in low-density polyethylene (LDPE) in percentages between 0.2 and 7.0wt%. After injection molding, the samples were submitted to morphologic
Polímeros. Publicado em: 01/04/2019
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2. Influencia de la temperatura en ensayos de arrancamiento sobre diferentes sistemas epoxi-acero de uso en conectores de ductos flexibles
ABSTRACT In the offshore oil fields located in deep and ultra-deep waters they are used flexible pipes. In many cases inside these pipes, the hydrocarbons are transported at elevated temperatures. At the ends of the flexible pipes are installed end fittings, these are the connection with sea platforms and different subsea systems. In the assembly of end fitt
Matéria (Rio J.). Publicado em: 19/07/2018
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3. Dynamic mechanical analysis and crystalline analysis of hemp fiber reinforced cellulose filled epoxy composite
Abstract The Dynamic mechanical behavior of chemically treated and untreated hemp fiber reinforced composites was investigated. The morphology of the composites was studied to understand the interaction between the filler and polymer. A series of dynamic mechanical tests were performed by varying the fiber loading and test frequencies over a range of testing
Polímeros. Publicado em: 2017-12
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4. Rheological properties and curing features of natural rubber compositions filled with fluoromica ME 100
Abstract This work aims at studying not only the rheological behavior of natural rubber-based compositions by making use of different contents of fluoromica or ME 100 synthetic mica in a natural rubber (NR) matrix, but also the different filler-filler and matrix-filler interactions before and after curing. The ME 100 content in NR varied from 0 to 10 phr (pa
Polímeros. Publicado em: 04/08/2016
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5. Preparation and properties of aromatic polyester/TiO2 nanocomposites from polyethylene terephthalate
The development of polyester based materials with enhanced properties as well as the use of post- consumer plastics as raw material has been an increasing market demand. This work aims the synthesis and characterization of aromatic polyesters/titanium dioxide nanocomposites from PET and using TiO2 (0, 1, 3 and 5% w/w) as filler by in situ polymerization. The
Mat. Res.. Publicado em: 05/02/2016
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6. Development and characterization of a novel bioresorbable and bioactive biomaterial based on polyvinyl acetate, calcium carbonate and coralline hydroxyapatite
Coralina® HAP-200 (coralline hydroxyapatite obtained by hydrothermal treatment of marine corals) and POVIAC® (polymeric matrix based on PVAc), commercial trade marks were mixed with a natural product from the Cuban sea costs, i.e. calcium carbonate from Porites Porites coral, to obtain a novel bioactive composite with potential use as bone restoration mate
Materials Research. Publicado em: 18/03/2011
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7. Evaluation of the influence of the polymer-filler interaction on compounds based on epoxidized elastomeric matrix and precipitated silica
The introduction of epoxy groups into the main chain of elastomers has emerged as a promising alternative, considering the monitoring of polymer-filler interaction leading to changes in the properties of vulcanizates. The epoxidation reaction (in situ) was chosen to modify elastomers, such as polybutadiene (BR) and copolymer of styrenebutadiene- rubber (SBR)
Publicado em: 2010
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8. Desenvolvimento de embalagem biodegradável tipo espuma a partir de fécula de mandioca. / Development of biodegradable packaging, a starch foam, obtained by cassava starch.
The objective of this project is the development of biodegradable food packaging, starch foam, made by cassava starch. Starch foam was obtained with a batter of starch, water and additive, through thermo expansion process. Formulation study was divided in three parts: the first step was to verify the starch quantity influence in the starch foam and five form
Publicado em: 2007
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9. Evaluation of the influence of the polymer-filler interaction on compounds based on epoxidized elastomeric matrix and precipitated silica
The introduction of epoxy groups into the main chain of elastomers has emerged as a promising alternative, considering the monitoring of polymer-filler interaction leading to changes in the properties of vulcanizates. The epoxidation reaction (in situ) was chosen to modify elastomers, such as polybutadiene (BR) and copolymer of styrene-butadiene-rubber (SBR)
Polímeros. Publicado em: 2006-06
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10. Spray-dried mucoadhesive microspheres: Preparation and transport through nasal cell monolayer
The purpose of this research was to prepare spray-dried mucoadhesive microspheres for nasal delivery. Microspheres composed of hydroxypropyl methylcellulose (H), chitosan (CS), carbopol 934P (CP) and various combinations of these mucoadhesive polymers, and maltodextrin (M), colloidal silicon dioxide (A), and propylene glycol (P) as filler and shaper, were pr
Springer-Verlag.