Effect of the silica-rubber interface on the mechanical, …
The higher storage modulus in SBR/SiO 2 vulcanizate than the in SBR/CB is due to the higher filler–filler interactions and …
Dynamic mechanical properties of oil palm nano filler/kenaf/epoxy hybrid nanocomposites …
Dynamic mechanical analysis (DMA), in terms of storage modulus (E′), loss modulus (E″), Tan delta (δ) and glass transition temperature (Tg) as a function of temperature were carried out. Overall results indicated that E′, E″ and Tg increased considerably by incorporating nano OPEFB filler, MMT and OMMT nanoclay into the …
A review of asphalt-filler interaction: Mechanisms, evaluation methods, and influencing …
The classic "structure asphalt" and "free asphalt" model, as shown in Fig. 2, has been proposed by Л.A. Liebinjieer [37], this model believes that the chemical components of asphalt will rearrange on the surface of the fillers and form a layer of solvent film with a thickness of Δ R due to asphalt-filler interaction. . Asphalt within the thickness …
Investigation into the effects of fillers in polymer processing
The Young''s modulus of amorphous materials was strongly affected by the filler content, while crystalline materials were not that sensitive to the filler content/level. The Young''s modulus of polystyrene-based polymer nanocomposites (PNCs) with 8 wt% fillers at 200 °C and 50 rpm was found to be of approximately 1786 MPa.
Morphology and Mechanical Properties of Nylon1010-filled Rigid …
A preliminary study on the influences of the nylon-1010 powder, as a new candidate for fillers, on the cellular structure and mechanical properties of rigid polyurethane foam (RPUF) is presented ...
Human-muscle-inspired single fibre actuator with reversible …
In this transition, the storage modulus of G 0.3-LCF shows a pronounced increase with temperature, revealing a clear distinction from that of pure LCF …
Polymers | Free Full-Text | Elastomer …
The morphology of the filler particles, their volume fraction and state of dispersion in the host medium as well as their surface characteristics and the chemically active sites that determine the …
Thermo‐mechanical properties of flexible and rigid …
DMA results showed enhancement in the storage modulus with filler loading while the DSC results revealed the …
Influence of Fillers on the Thermal and Mechanical Properties of Biocomposites: An Overview …
It could be attributed to several reasons such as the uniform distribution of the fillers, better matrix filler bonding, and the presence of rigid phenolic components in the filler. In a similar manner, the effect of filler loading (5–25 wt%) on cellulose-based composites with the agro waste fillers such as STLP [ 72 ], SCBP [ 5 ], TNP [ 73 ], and …
Storage Modulus
The storage modulus of a polymer in the rubbery plateau region was used to determine the cross-link density. The cross-link density (Table 12.5) of the 40% styrene film sample at approximately 40 °C was 66.7 mol/m 3. The cross-link density of the 60% MMA film sample at approximately 50 °C was 77.1 mol/m 3. Figure 12.23.
Mechanical and dynamic-mechanical behavior and morphology of polystyrene/perovskite composites: Effects of filler …
Clearly, although the elastic behavior is not significantly influenced by the minimum filler loading (1 wt.%), for superior contents the storage modulus G′ is higher than that of the pure matrix throughout the whole temperature range considered herein.
Effect of filler content and strain amplitude on dynamical …
The storage modulus (E'') increases with increasing filler content. While the E'' remains nearly constant for the unfilled material, it exhibits a plateau value, followed by a decreasing trend in the case of filled rubber. As the filler content is increased, the …
Water-induced modulus changes of bio-based uncured nanocomposite film based on natural rubber and bacterial cellulose nanocrystals …
Hydrophilic BCWs reinforced NR nanocomposites greatly increased storage modulus through the formation of a rigid filler network supported by strong hydrogen bonding between whiskers. The introduction of BCWs increased the glass transition temperature, suggesting weak interfacial interaction between filler and NR matrix.
Mechanical properties of rubber reinforced with silica and hydrolyzed carbohydrate/protein fillers …
Rubbers reinforced with silica filler are used in many applications. This study explores the effect of carbohydrate/protein (CP) mixture on the silica-reinforced natural rubber. Silica partially replaced with CP filler increases the curing rate and crosslink density, but also increases the extent of reversion after 100% cure. Compared to the rubber reinforced with …
The thermal degradation and dynamic mechanical properties modeling of MWCNT/glass fiber multiscale filler reinforced polypropylene composites ...
The efficacy of fillers could be estimated from the storage modulus of composites using equation (1) [28, 29]. (1) E f = ( E g ′ E e ′ ) C o m p o s i t e ( E g ′ E r ′ ) M a t r i x Where, E f denotes the effectiveness of dispersion, E '' g and E '' r are the storage modulus of glassy (−20 °C) and rubbery state (110 °C) of the composites and neat polymer.
Physicomechanical properties of nanocomposites based on …
The storage and loss modulus of nanocomposites exhibits a significant drop in the transition zone and the intensity of the peaks varies with fiber loading. It was observed that in conjunction with the E'' values, tan δ values of the gum natural rubber is much higher than those of the composites with 2.5, 5, 7.5 and 10 % CNF at the …
MECHANICAL PROPERTIES OF RIGID POLYVINYL CHLORIDE, EFFECT OF FILLERS
The values of the modulus G'' found by the participants show the influence of the filler on rigidity. No influence of the dimensions of the filler on shear modulus can be detected at 10 %. At 20 % it seems that the coarse filler increases the rigidity more than does
Modeling of Non-Linear Viscoelastic Behavior of Filled Rubbers
After adding the filler, the low strain modulus G 0 rises more that the high strain modulus G, resulting in a non-linear viscoelastic behavior, known as Payne-effect G 0 –G ∞ Fig. 14 Strain amplitude dependence of G* of N115 at different loadings ( a ) green compound, ( b ) vulcanizate
Micromechanical modeling of the linear viscoelasticity of carbon-black filled styrene butadiene rubbers: The role of the filler…
The storage modulus E ′ and the loss modulus E ″ master curves built for a reference temperature of 0 C are shown in Fig. 2. During the master curve building process, we noticed that the Williams–Landel–Ferry equation ( Williams et al., 1955 ) applied well for each material.
Thermal, Mechanical and Rheological Behavior of Poly(lactic …
In the present study, influence of talc on thermal, mechanical and rheological behavior of PLA is investigated and the structure–property correlation for the PLA/talc composites is established. Poly(lactic acid)/talc composites are prepared by melt mixing of PLA with talc in twin screw extruder followed by blown film processing. Various …
Mechanical and dynamic mechanical analysis of calcium carbonate filler …
Storage modulus was observed to increase with increasing fine filler in the polymer matrix due to the imposing restriction on the mobility of polymer chains and is shown in Fig. 5. The CaCO 3 10 wt% interleaved basalt fiber composite showed a higher storage modulus than the other interleaved composite.
Mechanical, viscoelastic and sorption behaviour of acrylonitrile–butadiene–styrene composites with 0D and 1D nanofillers …
Introducing an aspect ratio of 80 in Cohan''s model will result in very high values of storage modulus relative to other models. Modelling of damping behaviour Rigid filler inclusions decrease the damping behaviour of the composites as …
Lignin as a reactive reinforcing filler for water-blown rigid biofoam composites from …
An abrupt diminution of the storage modulus can be observed. The modulus values of the biofoam composites are higher than that of the neat biofoam at temperatures below T g of the neat biofoam. The result supports the suggestion that the high mechanical modulus of lignin and crosslinking introduced by lignin improves the …
Biomimetic mechanically adaptive nanocomposites
Below T g, the PVAc/cellulose whisker nanocomposites showed a only a modest increase of the tensile storage modulus upon introduction of the rigid filler; E ′ c increased from 1.8 GPa for the neat polymer to 5.4 GPa for a …
Magnetic and viscoelastic response of elastomers with hard magnetic filler …
The storage modulus of the material G'' = 45 kPa, 60 kPa and 118 kPa for the samples magnetized in the field of 2 kOe, 4 kOe and 15 kOe, respectively. A similar tendency is observed for the loss modulus, G '''' increases from 16 kPa to 21 kPa and till 58 kPa for the magnetizing field of 2 kOe, 4 kOe and 15 kOe.
Polymers | Free Full-Text | Enhancing Thermal …
As CFs have a higher elastic modulus, adding CFs into the PVDF matrix enhanced the storage modulus of the PVDF composites. Besides, the "physical crosslinking" interaction of the CFs between the …
