Slurry erosion behaviors of basalt filled low density polyethylene composites (original) (raw)
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Wear Behavior of Basalt Filled Low Density Polyethylene Composites
Applied Composite Materials, 2011
The friction and wear performance of pure LDPE and 10%, 30%, 50% and 70% basalt filled (by wt) LDPE composite were comparatively evaluated under dry sliding conditions. Wear tests were carried out at room temperature under 5, 10 and 20N loads and at 0.5, 1.0 and 1.5 m/s sliding speeds. The coefficients of friction of the composites were significantly influenced with increase in basalt content. Friction coefficient of the LDPE was getting decreased from 0.51 to 0.13 with increase in basalt content, depending on applied loads and sliding speeds. The results show that the wear rates for pure LDPE and basalt filled composites increase with increasing loads and sliding speeds. The wear rates of the basalt filled composites were significantly affected from the basalt content. Wear rates of the LDPE was decreased from 2.596×10 −3 to 6.8×10 −5 mm 3 /m with increase in basalt content, depending on applied loads and sliding speeds.
Investigation of Erosion Effect on Surface of Basalt Fibre Reinforced Polymer Composites
International Journal of Scientific Research in Science, Engineering and Technology, 2023
In the present study the erosion behavior of basalt fibre reinforced composite was studied. Slurry pot erosion test were conducted on the composite samples with 30%, 40% 50% and 60% reinforcement. Slurry concentration, speed and contact angle were considered as the parameters. The sand particles from the range of 212, 425 and 600µm were suspended in the water. The results revels that the slurry erosion was found to be increased with slurry concentration and the turning speed. The impact angle with 900 has the major influence on the erosion. The highest mass loss due to erosion is found in the sample with 30% reinforcement and the minimal mass loss due to erosion is found in the sample with 60% reinforcement.
Experimental Investigation of Slurry Erosion Wear Analysis of Epoxy Resin Reinforced
International Journal for Research in Applied Science & Engineering Technology (IJRASET), 2023
Fibre reinforced polymer composites as hybrid composites are commonly used for certain applications in which erosion wear and fracture are serious issues. These composites have engineering/structural applications in which they are subjected to sand slurries and dusty environment.
In the present study, composites were prepared by Hand lay-up molding. The composites constituents were epoxy resin as a matrix, 6% volume fractions of glass fibers (G.F) as reinforcement and 3%, 6% volume fractions of preparation natural material (Rice Husk Ash, Carrot Powder, and Sawdust) as filler. Studied the erosion wear behavior and coating by natural wastes (Rice Husk Ash) with epoxy resin after erosion. The results showed the non – reinforced epoxy have lower resistance erosion than natural based material composites and the specimen (Epoxy+6%glass fiber+6%RHA) has higher resistance erosion than composites reinforced with carrot powder and sawdust at 30cm , angle 60°, grin size of sand 425µm , temperature 30Ċ , 300 gm salt content in 2liter of water and 15 hour. Coating specimen with mixed epoxy resin -RHA with particles size in the range (1.4-4.2) µm improves erosion wear resistance characteristics of the coated specimen, coating thickness was (16 ± 1) μm and after erosion at (15 hour) the thickness was (10) μm
Solid particle erosion behaviour of polymers and polymeric composites
Solid particle erosion is usually undesirable, as it leads to development of cracks and holes, material removal and other degradation mechanisms that as final consequence reduce the durability of the structure imposed to erosion. The main aim of this study was to characterise the erosion behaviour of polymers and polymer composites, to understand the nature and the mechanisms of the material removal and to suggest modifications and protective strategies for the effective reduction of the material removal due to erosion. In polymers, the effects of morphology, mechanical-, thermomechanical, and fracture mechanical-properties were discussed. It was established that there is no general rule for high resistance to erosive wear. Because of the different erosive wear mechanisms that can take place, wear resistance can be achieved by more than one type of materials. Difficulties with materials optimisation for wear reduction arise from the fact that a material can show different behaviour depending on the impact angle and the experimental conditions. Effects of polymer modification through mixing or blending with elastomers and inclusion of nanoparticles were also discussed. Toughness modification of epoxy resin with hygrothermally decomposed polyesterurethane can be favourable for the erosion resistance. This type of modification changes also the crosslinking characteristics of the modified EP and it was established the crosslink density along with fracture energy are decisive parameters for the erosion response. Melt blending of thermoplastic polymers with functionalised rubbers on the other hand, can also have a positive influence whereas inclusion of nanoparticles deteriorate the erosion resistance at low oblique impact angles (30°). The effects of fibre length, orientation, fibre/matrix adhesion, stacking sequence, number, position and existence of interleaves were studied in polymer composites. Linear and inverse rules of mixture were applied in order to predict the erosion rate of a composite system as a function of the erosion rate of its constituents and their relative content. Best results were generally delivered with the inverse rule of mixture approach. A semi-empirical model, proposed to describe the property degradation and damage growth characteristics and to predict residual properties after single impact, was applied for the case of solid particle erosion. Theoretical predictions and experimental results were in very good agreement.
Erosive Wear Behavior of Nanoclay Filled Basalt - Epoxy Hybrid Composite
IJMER
Developments of nano clay particle reinforced plastics are of growing interest towards the emergence of new materials which enhance optimal utilization of natural resources and particularly of renewable resources. The effects of nano clay as filler in Basalt–epoxy composite systems on the tribological properties have been discussed in this article. Basalt fiber reinforced epoxy (BE) composite finds widespread application in erosive environment due to its several advantages like high wear resistance, high strength-to-weight ratio and low cost. Experiments were carried out to study the effects of impingement angle, particle velocity and filler material on the solid particle erosive wear behavior of BE composite. The erosive wear is evaluated at different impingement angles from 30° to 90° at three different velocities of 23, 42, & 60 m/s. The erodent used is silica sand with the size range (150 – 280 µm) of irregular shape. The result shows semi-ductile behavior with maximum erosion rate at 60° impingement angle. It is observed that wear rate increases with increasing particle velocity and decreases with increases of filler percentage. The morphology of the eroded surfaces was examined by using Scanning electron microscopy (SEM).
Investigation on solid particle erosion behaviour of polyetherimide and its composites
Wear, 2007
The present investigation reports about, the solid particle erosion behaviour of randomly oriented short E-glass, carbon fibre and solid lubricants (PTFE, graphite, MoS 2) filled polyetherimide (PEI) composites. The erosion rates (ERs) of these composites have been evaluated at different impingement angles (15-90 •) and impact velocities (30-88 m/s). Mechanical properties such as tensile strength (S), ultimate elongation to fracture (e), hardness (H V), Izod impact strength (I) and shear strength (S s) seems to be controlling the erosion rate of PEI and its composites. Polyetherimide and its glass, carbon fibre reinforced composites showed semi-ductile erosion behaviour with peak erosion rate at 60 • impingement angle. However, glass fibre reinforced PEI composite filled with solid lubricants showed peak erosion rate at 60 • impingement angle for impact velocities of 30 and 88 m/s, whereas for intermediate velocities (52 and 60 m/s) peak erosion rate observed at 30 • impingement angle. It is observed that 20% (w/w) glass fibre reinforcement helps in improving erosive wear resistance of neat PEI matrix. Erosion efficiency (η) values (0.23-8.2%) indicate micro-ploughing and micro-cutting dominant wear mechanisms. The morphology of eroded surfaces was examined by using scanning electron microscopy (SEM). Possible erosion mechanisms are discussed.
In the present study, composites were prepared by Hand lay-up molding The composites constituents were epoxy resin as a matrix, 6% volume fractions of Glass Fibers (G.F) as reinforcement and 3%, 6% volume fractions of preparation industrial powder (calcium carbonate CaCO3, potassium carbonate K2CO3 or sodium carbonate Na2CO3) as filler. The erosion wear behavior and coating by natural wastes (Rice Husk Ash) with epoxy resin after erosion were studied. The results showed that the non – reinforced epoxy have lower resistance erosion than industrial based Material composites and the specimen (Epoxy+6%glass fiber+6% CaCO3) has higher resistance erosion than composites reinforced with sodium carbonate and potassium carbonate at 25cm, angle 30°, grin size of sand 850µm, temperature 25Ċ, 200 gm salt content in 3liter of water and 15 hour. Coating specimen with mixed epoxy resin -RHA with particles size in the range (1.4-4.2) µm improves erosion wear resistance characteristics of the coated specimen, coating thickness was (16 ± 1) μm and after erosion in (15 hours) the thickness was (10) μm .Application of the work protection of pipes from erosion, these pipes include the sewage water , drainage pipe laboratory (hot water, chemicals and mineral oil) , pipeline transportation of petroleum products and pipeline transportation of gas products
2021
This paper reports the effect of 1.0 wt%, 3.0 wt% and 5.0 wt% nanoclay loadings on specific wear rate properties of basalt fibre reinforced polymer (BFRP) composites. The specific wear rate properties of the BFRP composites were analysed at three different wear conditions, i.e. dry adhesive sliding, two-body abrasion and slurry pot erosion in which the composites slide against smooth steel, rough silicon carbide and medium coarse sand mixture, respectively. The operating parameters for the wear tests were set at 30 N load, 300 rpm speed and 10 km distance. The results demonstrated that nanoclay incorporation enhanced the adhesive and erosive wear properties of BFRP composites up to 32% and 51%, respectively. In contrast, nanoclay incorporation deteriorated the abrasive wear properties of BFRP with increasing in nanoclay loading. The morphology of worn surfaces was evaluated using scanning electron microscopy (SEM) to study the wear behavior of the nanoclay modified BFRP composites. ...
Thermoplastic polymer composites are very promising materials for structural and friction related applications. Thermoplastic blend hybrid composites are used for the study. The blend polyamide 66 / polypropylene (PA66/PP) is reinforced with short glass (SGF) and basalt fibers (SBF). The composites are developed by melt mixing process using twin-screw extruder. The composites used for the study are blend (PA66/PP), Blend/SGF, Blend/SBF and Blend/SGF/SBF. The frictional effects and sliding pressure on the wear performance of thermoplastic blend composites reinforced with glass and basalt fibers are studied using pin-on-disk system as per ASTM G99. It has been noticed from the investigation that the wear loss of composites is totally influenced by the sliding pressure. The composites exhibit better wear resistance characteristics by the addition of fibers. Hybrid fibers reinforced composite demonstrated much greater wear resistance than individual fiber reinforced and thermoplastic blend composites. The reduction in the frictional constant has been noticed by the addition of fiber reinforcement into the blend.