Fly ash used as a reinforcing and flame-retardant filler in low-density polyethylene

Porąbka, Anna; Jurkowski, Kamil; Laska, Jadwiga

doi:10.14314/polimery.2015.251

Cited by 15 publications

(11 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The interest of using fly ash in different applications is evident because of its many advantages; such as low density, low cost, smooth spherical surface, well distributed internal stresses, and good processability of the filled materials . Although many researchers have recognized the reinforcing effect of fly ash for polymers , few publications focused on the fly ash composites performance dependency on its particle size. Kulkarni et al reported that the performance of cenosphere/ABS composites is a function of fly ash particle size.…”

Section: Introductionmentioning

confidence: 99%

The effect of particle size of fly ash (FA) on the interfacial interaction and performance of PVC/FA composites

Khoshnoud

Abu‐Zahra

2018

Vinyl Additive Technology

View full text Add to dashboard Cite

In this study, the effect of particle size of fly ash (FA) on the interfacial interaction between the filler particles and the polymer matrix is investigated. Structural and physical characterization of FA with different particle sizes show that its chemical composition is highly dependent on the particle size. The mechanical, dynamicmechanical, structural, and microstructural properties of the composites are evaluated. Interfacial interaction between FA particles and the polymer matrix is assessed experimentally using a nanoindenter and numerically using two different models developed by Pukanszky and Kubat. The composites reinforced with smaller particles exhibit better mechanical, viscoelastic, and microstructural properties. Structural and interfacial studies show that, although the characterized amount of silicon oxide in the small particles is lower than the large particles, the concentration of -OH group in SiO 2 is particle-size and surface-area dependent. Therefore, smaller particle inclusions result in better interfacial interaction and improved properties. This observation is consistent with the numerically estimated interfacial interaction. J. VINYL ADDIT. TECHNOL., 00:000-000,

show abstract

Section: Introductionmentioning

confidence: 99%

The effect of particle size of fly ash (FA) on the interfacial interaction and performance of PVC/FA composites

Khoshnoud

Abu‐Zahra

2018

Vinyl Additive Technology

View full text Add to dashboard Cite

show abstract

“…In this study, PUR composite was prepared using two types of fillers: fly ash (FA) from a pulverized bituminous coal-fired boiler and microspheres (M), which were the separated fraction of FA. FA generated in pulverized boilers was used as source material in geopolymers [ 20 , 21 ] and concrete [ 22 ], as well as thermal properties’ modifier in polymer composites [ 23 , 24 , 25 ] and flame-retardant in low-density polyethene [ 26 ]. M represent valued performance properties, including low density, thermal and mechanical stability, hydrophobicity.…”

Section: Introductionmentioning

confidence: 99%

“…M represent valued performance properties, including low density, thermal and mechanical stability, hydrophobicity. They were used as a component of insulating and non-flammable materials, composites and light concrete [ 23 , 26 , 27 , 28 , 29 , 30 ]. Thus, FA and M consist of a cheap, potential filler and flame-retardant in PUR production.…”

Section: Introductionmentioning

confidence: 99%

Fly Ash as an Eco-Friendly Filler for Rigid Polyurethane Foams Modification

et al. 2021

View full text Add to dashboard Cite

There is currently a growing demand for more effective thermal insulation materials with the best performance properties. This research paper presents the investigation results on the influence of two types of filler on the structure and properties of rigid polyurethane foam composites. Fly ash as a product of coal combustion in power plants and microspheres of 5, 10, 15, and 20 wt.%, were used as rigid polyurethane foams modifiers. The results of thermal analysis, mechanical properties testing, and cellular structure investigation performed for polyurethane composites show that the addition of fly ash, up to 10 wt.%, significantly improved the majority of the tested parameters. The use of up to 20 wt.% of microspheres improves the mechanical and thermal properties and thermal stability of rigid polyurethane foams.

show abstract

“…Microspheres can be a good source of a modifier of thermal properties and flameretardant in polyurethanes production [9,10]. Rigid polyurethane foams have been used as thermal insulation in building industry and in automotive sector [11].…”

Section: Introductionmentioning

confidence: 99%

Microspheres as potential fillers in composite polymeric materials

et al. 2019

View full text Add to dashboard Cite

Microspheres used in our work were acquired from one of Kazakhstan coal-fueled power plant. The size of the microspheres varied between 45 and 400 μm, the median particle size (D50) was 158 μm. Microscopic analysis revealed that the material consisted mainly of cenospheres. The results of elemental and oxide analysis showed that microspheres were composed of aluminosilicates. Identified crystalline phases were mullite (approx. 12 %) and trace amount of quartz (silica). Microscopic observations of the cross-sectional surface of both unmodified PUR foam and foams modified with microspheres showed a well formed, cellular structure of all materials. The observed cells are polyhedron in shape, most of them are closed, microspheres were uniformly distributed within polymer matrix and placed between cells. The apparent densities calculations of the samples showed that when microspheres were added to the polymer matrix, apparent density of the resulting composite materials increased. The results of elemental analysis pointed out the highest content of all three elements in unmodified PUR foam sample. The addition of the microspheres to the system resulted in decrease of the concentration of all three elements.

show abstract

Fly ash used as a reinforcing and flame-retardant filler in low-density polyethylene

Cited by 15 publications

References 12 publications

The effect of particle size of fly ash (FA) on the interfacial interaction and performance of PVC/FA composites

The effect of particle size of fly ash (FA) on the interfacial interaction and performance of PVC/FA composites

Fly Ash as an Eco-Friendly Filler for Rigid Polyurethane Foams Modification

Microspheres as potential fillers in composite polymeric materials

Contact Info

Product

Resources

About